A high-voltage switch cabinet ventilation net convenient to disassemble

Abstract

This invention relates to the field of power distribution cabinet technology, specifically to a ventilation mesh for a high-voltage switchgear that is easy to disassemble. It includes a cabinet body with two protruding rods on the outer wall. Each protruding rod contains multiple snap-fit ​​components. A frame is installed between the two protruding rods and the outer wall of the snap-fit ​​components. A mesh grille is fixedly connected inside the frame. The frame is used to drive the mesh grille to be installed between the two protruding rods, and the snap-fit ​​components are used to ensure the connection between the protruding rods and the frame. The protruding rods are fixed by baffles on both sides of a hollow groove in the cabinet body. The snap-fit ​​components, consisting of protrusions, locking plates, and elastic elements, are installed inside the protruding rods. When the frame is inserted into the groove, pressing the protrusions triggers the locking plates to compress the elastic elements, causing the snap-fit ​​components to retract and slide between the frame and the protruding rods, achieving initial positioning and installation.

Description

Technical Field

[0001] This invention relates to the field of power distribution cabinet technology, and more specifically, to a ventilation network for a high-voltage switchgear that is easy to disassemble. Background Technology

[0002] A switchgear ventilation mesh is a ventilation component installed on the cabinets of high-voltage switchgear and other similar equipment. It has numerous fine mesh openings, and its main function is to ensure normal air circulation between the inside and outside of the cabinet while preventing dust, debris, and small animals from entering the cabinet and thus avoiding damage to the electrical components inside the switchgear and affecting its normal operation.

[0003] Most existing high-voltage switchgear ventilation screens are typically fixed with bolts. However, these bolts are numerous and located deep inside the cabinet or in inaccessible places obstructed by other components. In some compact switchgear designs, the ventilation screen bolts are located in a narrow space inside the cabinet. This makes it difficult for maintenance personnel to easily reach in with wrenches and other tools to tighten the bolts when disassembling the ventilation screen for cleaning and maintenance. This not only wastes a lot of time trying different angles, resulting in extremely low efficiency, but also easily damages the bolts due to the inconvenience of using tools, further increasing the difficulty of disassembly.

[0004] Therefore, we propose a ventilation mesh for high-voltage switchgear that is easy to disassemble. Summary of the Invention

[0005] This invention provides a ventilation mesh for a high-voltage switchgear that is easy to disassemble. It utilizes protruding rods with snap-fit ​​components on the outer wall of the cabinet, and a frame to drive the mesh installation between these protruding rods. The snap-fit ​​components ensure the connection. Simultaneously, magnetic strips attract each other on the surface of the top baffle of the hollow groove in the frame and the cabinet. This allows the ventilation mesh to be securely connected after installation, and easily separated by operating the snap-fit ​​components and utilizing the magnetic strips for disassembly. This solves the problems mentioned in the background art, namely: When existing high-voltage switchgear ventilation screens are fixed with bolts, the large number of bolts and their poor placement cause maintenance personnel to spend a lot of time disassembling the ventilation screens, resulting in low efficiency and the bolts being easily damaged, thus increasing the difficulty of disassembly.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A ventilation mesh for a high-voltage switchgear that is easy to disassemble includes a cabinet body. The outer wall of the cabinet body is provided with two protruding rods. The protruding rods are provided with multiple snap-fit ​​components inside. A frame is installed between the two protruding rods and the outer wall of the multiple snap-fit ​​components. A mesh is fixedly connected inside the frame. The frame is used to drive the mesh to be installed between two protruding rods, and the buckle assembly is used to ensure the connection between the protruding rods and the frame.

[0007] On this basis, a hollow groove is provided on the outer wall of the cabinet body. Baffles are provided on the top and the inner walls on the left and right sides of the hollow groove. The two convex rods are respectively fixedly connected to the surfaces of the baffles on the left and right sides, and the frame is installed between the cabinet body and the multiple baffles.

[0008] Preferably, the buckle assembly includes two convex blocks. A clamping plate is fixedly connected to the end of the convex block. The clamping plate is located inside the convex rod, and elastic members are directly fixedly connected to the ends of the two clamping plates.

[0009] Preferably, the end of the convex block is semi-spherical, and the convex block is located between the convex rod and the inside of the frame.

[0010] Preferably, the frame is in a "冂" shape. The bottom surface of the frame is hollow-designed. The height of the hollow groove of the cabinet body is higher than the height of the frame, and the width of the hollow groove of the cabinet body is the same as the width of the frame.

[0011] Preferably, magnetic strips are provided on the surface of the back of the frame and the top baffle of the hollow groove of the cabinet body, and the two magnetic strips attract each other.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. In a ventilation net of a high-voltage switch cabinet that is easy to disassemble, the convex rods are fixed by the baffles on both sides of the hollow groove of the cabinet body. A buckle assembly composed of a convex block, a clamping plate and an elastic member is arranged inside the convex rod. When the frame is inserted into the groove, the convex block is pressed to drive the clamping plate to compress the elastic member, so that the buckle assembly contracts and slides into the space between the frame and the convex rod to achieve preliminary positioning. Then, the frame is pushed up along the convex rod to the top of the groove, and the locking is completed by the adsorption force of the magnetic strips on the back of the frame and the top baffle; During disassembly, hold the frame and the grid from the gap between the bottom of the frame and the bottom of the groove with both hands, gently push the convex block to release the buckle lock and overcome the adsorption force of the magnetic strip, and the frame can be directly taken out without bolt tools, solving the disassembly problem of the traditional bolts with hidden positions and insufficient operating space.

[0013] 2. In a ventilation net of a high-voltage switch cabinet that is easy to disassemble, through the联动 of the reset characteristic of the elastic member of the buckle assembly and the adsorption force of the magnetic strip, after the frame slides in place, the elastic member pushes the convex block to clamp the side of the frame, and the magnetic strip provides an adsorption force from the top, forming a double-fixed structure of "clamping from below and attracting from above". This not only ensures the stability of the ventilation net in the vibrating environment of the cabinet body, but also realizes convenient unlocking through the deformation of the elastic member and the separability of the magnetic strip, avoiding the risk of thread slipping and component damage caused by multiple disassembly and assembly of traditional bolts.

[0014] 3. In a ventilation net of a high-voltage switchgear cabinet that is easy to disassemble, through the design of the width adaptation and height difference between the "冂"-shaped hollow structure of the frame and the hollow groove of the cabinet body, after the frame is embedded, the bottom is suspended and the top is tightly fitted to the baffle. The bottom gap not only provides a hand-holding space during disassembly but also prevents the frame from contacting the bottom of the groove and affecting air circulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the ventilation net structure of the present invention; Figure 3 It is a schematic diagram of the disassembled structure of the ventilation net of the present invention; Figure 4 It is a front view of the installation structure of the ventilation net of the present invention; Figure 5 It is an enlarged schematic diagram of the structure of the buckle assembly of the present invention; Figure 6 It is a schematic diagram of the installation structure of the buckle assembly of the present invention; Figure 7 It is an enlarged schematic diagram of the structure of the back surface of the ventilation net and the groove of the present invention.

[0016] In the drawings, the list of components represented by each reference numeral is as follows: 1. Cabinet body; 11. Convex rod; 12. Buckle assembly; 120. Convex block; 121. Cardboard; 122. Elastic member; 2. Mesh grid; 21. Frame; 3. Magnetic strip. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than 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 efforts shall fall within the protection scope of the present invention. Embodiment

[0018] Currently, when the existing ventilation net of the high-voltage switchgear cabinet is fixed by bolts, due to the large number of bolts and their poor positions, it takes a lot of time for maintenance personnel to disassemble the ventilation net, with low efficiency and it is easy to damage the bolts, increasing the difficulty of disassembly; please refer to Figures 1-4 As shown in a ventilation net of a high-voltage switchgear cabinet that is easy to disassemble, it includes a cabinet body 1. There are two convex rods 11 on the outer wall of the cabinet body 1. There are multiple buckle assemblies 12 inside the convex rods 11. A frame 21 is installed between the two convex rods 11 and the outer walls of the multiple buckle assemblies 12. A mesh grid 2 is fixedly connected inside the frame 21; The frame 21 is used to drive the mesh 2 to be installed between the two protruding rods 11, and the buckle assembly 12 is used to ensure the connection between the protruding rods 11 and the frame 21.

[0019] Based on this, refer to Figure 3 As shown, the outer wall of the cabinet 1 is provided with a hollow groove, and the top of the hollow groove and the inner walls of the left and right sides are provided with baffles. Two protruding rods 11 are fixedly connected to the surfaces of the baffles on the left and right sides respectively. The frame 21 is installed between the cabinet 1 and the multiple baffles.

[0020] During installation, first align the frame 21 with the hollow groove. Since the width of the frame 21 is the same as the width of the groove, it can be ensured that the frame 21 is vertically embedded along the two side baffles. The protruding rods 11 on the surface of the left and right side baffles serve as the mounting carriers for the buckle assembly 12. When the frame 21 is embedded in the groove, the side wall of the frame 21 contacts the buckle assembly 12 inside the protruding rod 11. At this time, press the frame 21 to retract the buckle assembly 12 as a whole, thereby allowing the frame 21 to slide smoothly into the space between the protruding rod 11 and the baffle.

[0021] When implementing, refer to Figure 5 and Figure 6 As shown, the buckle assembly 12 includes two protrusions 120, and the ends of the protrusions 120 are fixedly connected to the plates 121. The plates 121 are located inside the protrusions 11, and the ends of the two plates 121 are directly fixedly connected to the elastic members 122.

[0022] The end of the protrusion 120 is hemispherical, and the protrusion 120 is located between the protrusion 11 and the frame 21.

[0023] With the elastic element 122 in its naturally extended state, it pushes the two side plates 121 to move outwards towards the protrusion 11, causing the protrusion 120 fixed to the end of the plate 121 to protrude from the surface of the protrusion 11. At this time, the distance between the two protrusions 120 is slightly larger than the inner diameter of the mounting hole of the frame 21. When the frame 21 is aligned with the protrusion 11 and pressure is applied, the inner wall of the frame 21 presses against the hemispherical end of the protrusion 120, generating a centripetal force that forces the plate 121 to compress the elastic element 122 and slide inwards towards the protrusion 11. The elastic element 122 stores... The elastic element 122 can retract, causing the protrusion 120 to retract completely into the protrusion 11, allowing the frame 21 to pass smoothly through the area of ​​the protrusion 11. When the frame 21 moves to the preset position, the elastic element 122 rebounds and releases energy, pushing the locking plate 121 to reset, causing the protrusion 120 to protrude again and lock into the slot or hole on the side of the frame 21. At this time, the spherical end of the protrusion 120 forms a mechanical engagement with the slot of the frame 21, restricting the lateral displacement of the frame 21. The preload of the elastic element 122 ensures the stability of the engagement state and prevents vibration from causing it to loosen.

[0024] During the disassembly process, the maintenance personnel support the frame 21 and the mesh grid 2 from the bottom gap of the frame 21, push the frame 21 in the opposite direction of installation, and compress the elastic member 122 again to disengage the bump 120 from the card slot of the frame 21; after unlocking, the frame 21 can slide out axially along the convex rod 11, and the elastic member 122 returns to its initial state with the card plate 121.

[0025] Through the geometric shape of the spherical surface at the end of the bump 120, the vertical pressure is converted into a horizontal component force, forcing the bump 120 to move inward into the convex rod 11 and compress the elastic member 122, triggering the contraction of the buckle assembly 12 without manual operation; this feature enables the frame 21 to automatically complete the buckle unlocking and locking during the pressing or pushing process.

[0026] In addition, refer to Figure 4 As shown, the frame 21 is in the shape of a "冂", the bottom surface of the frame 21 is a hollow design, the height of the hollow groove of the cabinet body 1 is higher than the height of the frame 21, and the width of the hollow groove of the cabinet body 1 is the same as the width of the frame 21.

[0027] By the characteristic of the frame 21 adopting a "冂"-shaped hollow structure, precise lateral positioning is formed, ensuring that the frame 21 can only move vertically when inserted into the groove, avoiding left-right shaking or deviation; and because the height of the groove is higher than the height of the frame 21, a certain gap is reserved between the bottom surface of the frame 21 and the bottom of the groove after the frame 21 is inserted. On the one hand, this gap provides a hand-holding space during disassembly, enabling the maintenance personnel to support the frame 21 from the bottom to apply force; on the other hand, the hollow bottom surface of the frame 21 does not contact the bottom of the groove, ensuring that air can freely flow from the bottom of the frame 21, avoiding affecting the ventilation efficiency due to structural obstruction.

[0028] During installation, the open end of the "冂"-shaped frame 21 faces the outside of the cabinet body 1. First, align the two side walls of the frame 21 with the left and right baffles of the groove, and vertically insert it using the width adaptation characteristic; when the frame 21 slides to the preset position in the groove, the top of the frame 21 fits with the top baffle of the groove. At this time, the back surface of the frame 21 is adsorbed and fixed by the magnetic strip 3 on the top baffle, and the bottom of the frame 21 is suspended due to the height difference of the groove, forming an "upper-top and lower-empty" installation state; this design achieves a double-stable effect of "lateral positioning + longitudinal positioning" of the frame 21 in the groove through precise matching of geometric dimensions: laterally, the left and right movement is restricted by the same width, and longitudinally, the up and down displacement is constrained by the top baffle and the magnetic strip 3, while the bottom gap retains the operation space and ventilation path.

[0029] During disassembly, both hands are inserted into the gap at the bottom of frame 21, supporting the bottom surface of frame 21 and applying upward force to overcome the magnetic strip 3 at the top. At the same time, the frame 21 can be vertically removed from the groove by operating the buckle assembly 12. Since the bottom surface of frame 21 is hollow and does not contact the bottom of the groove, there is no need to worry about structural interference during disassembly. The direction of force applied by the hands is consistent with the direction of movement of frame 21, which further improves the ease of operation. Overall, through size adaptation and shape design, this structure ensures installation stability while taking into account maintenance convenience and ventilation performance, achieving an optimized unity of function and structure.

[0030] See Figure 7 As shown, magnetic strips 3 are provided on the back of frame 21 and the top baffle surface of the hollow groove in cabinet 1, and the two magnetic strips 3 attract each other.

[0031] During installation, as the frame 21 slides upward along the protruding rod 11 to below the top baffle, the magnetic strip 3 on the back of the frame 21 gradually approaches the magnetic strip 3 on the top baffle. The two are attracted by opposite magnetic poles, generating an adsorption force that guides the frame 21 to precisely align to the preset position. At this time, the adsorption force of the magnetic strip 3 and the mechanical locking of the buckle assembly 12 work together. The buckle assembly 12 provides lateral restraint from both sides, while the magnetic strip 3 applies longitudinal adsorption force from the top, together ensuring that the frame 21 will not loosen or fall off under the vibration of the cabinet 1 or the action of external force.

[0032] During disassembly, the magnetic strip 3's adsorption force can be overcome by manually applying a pulling force perpendicular to the adsorption surface, such as by holding the bottom of the frame 21 with both hands and pulling upwards. When the pulling force exceeds the maximum adsorption force of the magnetic strip 3, the two separate, and the frame 21 loses its top constraint. At this point, in conjunction with the unlocking operation of the buckle assembly 12, the frame 21 can be vertically removed from the groove without external force locking. The introduction of the magnetic strip 3 not only enhances installation stability but also simplifies the positioning process through magnetic guidance—maintenance personnel do not need to precisely control the sliding distance of the frame 21; they only need to push the frame 21 until the magnetic strip 3 automatically adsorbs to complete the installation alignment, further improving operational efficiency.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements, but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0034] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A ventilating grid of a high voltage switchgear for easy disassembly, comprising a cabinet body (1), characterized in that: Two convex rods (11) are provided on the outer wall of the cabinet body (1). A plurality of buckle components (12) are provided inside the convex rods (11). A frame (21) is installed between the two convex rods (11) and the outer walls of the plurality of buckle components (12). A wire grid (2) is fixedly connected inside the frame (21). The frame (21) is used to drive the wire grid (2) to be installed between the two convex rods (11). The buckle component (12) is used to ensure the connection relationship between the convex rod (11) and the frame (21).

2. The easily detachable ventilation grid for high voltage switchgear according to claim 1, characterized in that: A hollow groove is provided on the outer wall of the cabinet body (1). Baffles are provided on the top and the left and right inner walls of the hollow groove. The two convex rods (11) are respectively fixedly connected to the surfaces of the baffles on the left and right sides. The frame (21) is installed between the cabinet body (1) and the plurality of baffles.

3. The easily detachable ventilation grid for high voltage switchgear according to claim 1, characterized in that: The buckle component (12) includes two convex blocks (120). A clamping plate (121) is fixedly connected to the end of the convex block (120). The clamping plate (121) is located inside the convex rod (11). Elastic members (122) are directly fixedly connected to the ends of the two clamping plates (121).

4. The easily detachable ventilation grid for high voltage switchgear according to claim 3, characterized in that: The end of the convex block (120) is semi-spherical. The convex block (120) is located between the convex rod (11) and the inside of the frame (21).

5. The easily detachable ventilation grid for high voltage switchgear according to claim 2, characterized in that: The frame (21) is in an "L" shape with a hollow design at the bottom. The height of the hollow groove of the cabinet body (1) is higher than the height of the frame (21). The width of the hollow groove of the cabinet body (1) is the same as the width of the frame (21).

6. The easily detachable ventilation grid for high voltage switchgear according to claim 5, characterized in that: Magnetic strips (3) are provided on the back surface of the frame (21) and the surface of the top baffle of the hollow groove of the cabinet body (1). The two magnetic strips (3) attract each other.

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