All-insulation ring main unit and cabinet door anti-impact structure thereof

Abstract

The utility model relates to an all-insulation ring main unit and a cabinet door anti-impact structure thereof, and relates to the technical field of ring main units, the all-insulation ring main unit comprises a cabinet body and a cabinet door, the cabinet body is provided with a door frame, one side, facing the cabinet door, of the door frame is provided with a fixing assembly, one side, facing the door frame, of the cabinet door is provided with a connecting assembly, and the fixing assembly comprises a rivet fixing nut. The connecting assembly comprises a threaded bolt. The pull rivet fixing nuts are evenly arranged on the two sides of the door frame, the bolt holes are evenly formed in the positions, corresponding to the pull rivet fixing nuts, of the cabinet door, and after the cabinet door is closed, the threaded bolts penetrate through the bolt holes in the cabinet door to be connected with the pull rivet fixing nuts, so that the connection stability of the cabinet door and the door frame is enhanced; the anti-impact performance of the cabinet door is improved, and the situation that when the ring main unit is impacted, the cabinet door is impacted to be opened outwards, and the life safety of workers is threatened is avoided.

Description

Technical Field

[0001] The present application relates to the technical field of ring main unit, and in particular to a fully insulated ring main unit and an anti-impact structure of a cabinet door thereof. Background Art

[0002] The fully insulated ring main unit is a group of electrical equipment that installs the transmission and distribution electrical equipment in an insulator cabinet or makes it into an assembled interval ring main unit. Its core part adopts load-taking switches and fuses. It has the advantages of simple structure, small size, improved power supply parameters and performance, and power supply safety. It is widely used in distribution stations and box-type substations in load centers of cities, factories and enterprises.

[0003] The fully insulated ring main unit includes a cabinet body and a cabinet door. The cabinet body and the cabinet door are hinged and equipped with a interlocking rod lock. The interlocking rod moves up and down and cooperates with the pin to achieve locking. The interlocking rod is relatively long, resulting in a general locking effect. The connection between the cabinet body and the cabinet door is not firm, and the cabinet door is not impact-resistant. The fully insulated ring main unit is prone to vibration after being hit, and the cabinet door is easily knocked open by the impact force, threatening the lives of the staff and causing safety hazards. There is room for improvement. Utility Model Content

[0004] In order to enhance the impact resistance of a fully insulated ring main unit door, the present application provides a fully insulated ring main unit and an anti-impact structure for its door.

[0005] In the first aspect, the anti-impact structure of the cabinet door of the fully insulated ring main unit provided in the present application adopts the following technical solution:

[0006] A cabinet door anti-impact structure of a fully insulated ring network cabinet comprises a cabinet body and a cabinet door, wherein the cabinet body is provided with a door frame, a fixing component is provided on the side of the door frame facing the cabinet door, a connecting component is provided on the side of the cabinet door facing the door frame, the fixing component comprises a rivet fixing nut, and the connecting component comprises a threaded bolt.

[0007] By adopting the above technical solution, the door frame and the cabinet door are connected together by using the fixing components on the door frame and the connecting components on the cabinet door, which simplifies the structure and facilitates assembly while ensuring the connection stability between the cabinet door and the cabinet body, thereby preventing the cabinet door from being knocked open together after the ring network cabinet is impacted, thereby affecting the personal safety of the staff.

[0008] Optionally, the cabinet door includes a door panel and an upper door flange, a lower door flange, and a side door flange formed by vertically folding the outer periphery of the door panel toward one side of the door frame, the side door flange is bent toward the inner side of the cabinet door to form a connecting plate, the connecting plate is parallel to the door panel, bolt holes are formed on the door panel, and opening grooves are formed at positions corresponding to the bolt holes on the connecting plate, the fixing assembly includes a rivet fixing nut, the connecting assembly includes a threaded bolt, the rivet fixing nut is fixedly connected to the door frame, and the threaded bolt passes through the bolt hole and the opening groove to be detachably connected to the rivet fixing nut.

[0009] By adopting the above technical scheme, an upper door flange, a lower door flange, a side door flange and a connecting plate are arranged on the cabinet door, which can improve the structural strength and rigidity of the cabinet door and provide installation space for the connecting components; a rivet fixing nut is arranged on the door frame, which can ensure the tightness of the connection between the rivet fixing nut and the door frame while avoiding deformation of the thinner door frame, and the installation of the rivet fixing nut is relatively simple and convenient to operate; when the door needs to be closed, the threaded bolt is passed through the bolt hole and the open groove to be threadedly connected with the rivet fixing nut, which can achieve a stable connection between the door frame and the cabinet door, and prevent the cabinet door from being knocked open by the impact force when the fully insulated ring network cabinet is subjected to a strong impact or a fire or even an explosion occurs inside, causing the internal parts to scatter and threaten the personal safety of the staff.

[0010] Optionally, the rivet fixing nuts are evenly arranged along both sides of the door frame, and the bolt holes are evenly arranged at corresponding positions of the door panel and the rivet fixing nuts.

[0011] By adopting the above technical solution, multiple groups of rivet fixing nuts are evenly arranged on both sides of the door frame, and multiple groups of bolt holes are opened at positions corresponding to the rivet fixing nuts around the cabinet door. This can strengthen the connection between the cabinet door and the door frame on both sides and make the cabinet door evenly stressed, achieve anti-impact fixation, further improve the anti-impact performance of the cabinet door, and thus improve the reliability of the ring network cabinet.

[0012] Optionally, the door frame is vertically folded toward the inner side of the cabinet to form an upper door frame flange, a lower door frame flange and a side door frame flange, and the side door frame flange is provided with a flameproof baffle, and the front end surface of the flameproof baffle protrudes beyond the door frame.

[0013] By adopting the above technical solution, a flame-proof baffle is arranged on the side flange of the door frame and the front end surface of the flame-proof baffle protrudes from the door frame, thereby filling the gap between the cabinet door and the door frame, preventing high-temperature gas from rushing out of the gap and hitting the cabinet door and affecting the personal safety of the staff when an arc occurs, thereby improving the impact resistance of the cabinet door.

[0014] Optionally, the fixing assembly includes a hook plate, the hook plate includes a connecting portion that fits with the side flange of the door frame, a first bending portion and a second bending portion, the second bending portion is provided with a hook, the door frame is provided with a clearance groove for the hook to extend out, and the connecting assembly includes a hanging groove, which is provided on the connecting plate.

[0015] By adopting the above technical solution, a hook plate is added in the space between the side flange of the door frame and the cabinet body, and the connecting part of the hook plate, the side flange of the door frame and the flameproof baffle are connected in sequence to prevent the high-temperature gas from affecting the hook plate when arcing occurs, thereby reducing the anti-impact effect of the cabinet door; when closing the door, after aligning the hanging groove with the hook on the hook plate, the hook is inserted into the hanging groove to achieve fixation between the cabinet door and the cabinet body.

[0016] Optionally, the hook includes a supporting portion parallel to the ground, a locking portion extending vertically upward from the end of the supporting portion, and a limiting portion extending vertically downward from the end of the supporting portion, and the length of the locking portion is greater than the length of the limiting portion.

[0017] By adopting the above technical solution, after the hook plate is connected to the side flange of the door frame, the support part of the hook is dropped in the clearance groove, and then the hook is inserted into the hanging groove, the upper end surface of the hanging groove abuts against the support part, and the locking part is dropped in the space formed by the door panel, the side flange of the cabinet door and the connecting plate, so as to fix the cabinet door and the cabinet body; the limiting part extends vertically downward from the end of the supporting part to prevent the hook from sliding and falling off in the clearance groove, thereby facilitating the positioning of the hook plate.

[0018] Optionally, the hooks are evenly arranged along the height direction of the second bending portion, and the clearance grooves and the hanging grooves are arranged corresponding to the hooks.

[0019] By adopting the above technical solution, multiple sets of hooks and corresponding make-way grooves and hanging grooves are set to enhance the connection stability between the hook plate and the cabinet door, thereby improving the connection stability between the cabinet body and the cabinet door, making the cabinet door more evenly stressed when impacted, thereby enhancing the reliability of the cabinet door and improving the anti-impact performance of the cabinet door.

[0020] Optionally, an observation window is provided on the cabinet door.

[0021] By adopting the above technical solution, an observation window is opened on the cabinet door, and the staff can observe the working status of the ring network cabinet without opening the cabinet door, which is convenient for the staff's inspection work and reduces the number of times the threaded bolts are disassembled, avoiding wear caused by repeated disassembly.

[0022] In a second aspect, the present application provides a fully insulated ring main unit, including the above-mentioned cabinet door anti-impact structure.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. Rivet fixing nuts are evenly arranged on both sides of the door frame, and bolt holes are evenly opened at positions corresponding to the cabinet door and the rivet fixing nuts, and opening slots are evenly opened at positions corresponding to the connecting plate and the rivet fixing nuts. When the cabinet door is closed, threaded bolts are passed through the bolt holes on the cabinet door, the opening slots on the connecting plate and the rivet fixing nuts to connect them, thereby enhancing the connection stability between the cabinet door and the door frame, improving the anti-impact performance of the cabinet door, and preventing the cabinet door from being knocked outward by impact when the ring main cabinet is hit or a fire or even explosion occurs inside, threatening the life safety of the staff;

[0025] 2. Hook plates are evenly arranged on both sides of the door frame, and hanging grooves are opened on the connecting plates and clearance grooves are opened on the door frame. The hooks are inserted into the hanging grooves for fixing, so as to further connect the cabinet door and the cabinet body and enhance the anti-impact performance of the cabinet door;

[0026] 3. A flame-proof baffle is installed on the side edge of the door frame to prevent high-temperature gas from rushing out from the gap between the cabinet door and the cabinet body when the arc is burning, which may affect the personal safety of the staff;

[0027] 4. There is an observation window on the cabinet door, which is convenient for the staff to check the working condition of the ring network cabinet without opening the cabinet door. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0029] Figure 1 It is a schematic diagram of the overall structure of Example 1 of the present application;

[0030] Figure 2 is a schematic diagram of the cabinet structure of Example 1 of the present application;

[0031] Figure 3 is a schematic diagram of the cabinet door structure of Example 1 of the present application;

[0032] Figure 4 It is a schematic diagram of the assembly of the door frame and the cabinet door in Example 1 of the present application;

[0033] Figure 5 is a schematic diagram of the cabinet structure of Example 2 of the present application;

[0034] Figure 6 is a schematic diagram of the structure of the cabinet door and the hook plate in Example 2 of the present application;

[0035] Figure 7 This is a schematic diagram of the assembly of the door frame and the cabinet door in Example 2 of the present application;

[0036] In the figure, 1, cabinet body; 2, cabinet door; 21, door panel; 211, bolt hole; 22, cabinet door side flange; 23, connecting plate; 231, opening groove; 3, door frame; 31, door frame side flange; 32, make way groove; 4, fixing assembly; 41, rivet fixing nut; 42, hook plate; 421, connecting part; 422, first bending part; 423, second bending part; 5, connecting assembly; 51, threaded bolt; 52, hanging groove; 6, hook; 61, supporting part; 62, locking part; 63, limiting part; 7, flameproof baffle; 8, observation window; 9, notch. DETAILED DESCRIPTION

[0037] The present application is further described in detail below in conjunction with all the accompanying drawings.

[0038] Embodiment 1: A cabinet door anti-impact structure of a fully insulated ring main unit, referring to the figure, comprises a cabinet body 1 and a cabinet door 2, wherein the side of the cabinet body 1 facing the cabinet door 2 is a door frame 3.

[0039] Reference Figure 2 and Figure 4 The door frame 3 has side flanges 31 bent vertically toward the inner side of the cabinet 1 on both sides, and the door frame side flanges 31 are connected to the flameproof baffle 7. The front end surface of the flameproof baffle 7 exceeds the door frame 3. Rivet fixing nuts 41 are evenly distributed on both sides of the door frame 3 along the height direction. There are a total of 8 rivet fixing nuts 41.

[0040] Reference Figure 3 and Figure 4 The cabinet door 2 includes a door panel 21 and a cabinet door side flange 22. The cabinet door side flange 22 is formed by vertically folding the outer periphery of the door panel 21 toward one side of the door frame 3. The cabinet door side flange 22 is vertically folded toward the inner side of the cabinet door 2 to form a connecting plate 23 parallel to the door panel 21. An opening groove 231 is opened on the connecting plate 23 at a position corresponding to the rivet fixing nut 41. The size of the opening groove 231 is larger than the size of the rivet fixing nut 41 and is rectangular. A bolt hole 211 is opened on the door panel 21 at a position corresponding to the rivet fixing nut 41. The size of the bolt hole 211 is adapted to the size of the rivet fixing nut 41 and is circular. The threaded bolt 51 is connected to the rivet fixing nut 41 through the bolt hole 211.

[0041] Reference Figure 1 An observation window 8 is provided on the cabinet door 2 and is sealed with glass, so that the staff can observe the operation inside the ring network cabinet without opening the cabinet door 2, thereby reducing the number of times the cabinet door 2 is opened and closed.

[0042] The implementation principle of the embodiment of the present application is: when the cabinet door 2 needs to be closed, the bolt hole 211 on the cabinet door 2 is aligned with the rivet fixing nut 41 on the door frame 3, and the threaded bolt 51 is screwed into the rivet fixing nut 41, so that the cabinet door 2 and the cabinet body 1 can be fixed.

[0043] Embodiment 2: The difference from Embodiment 1 is that, referring to Figure 5 The fixing assembly 4 includes a hook plate 42 , and there are two hook plates 42 . A clearance groove 32 is opened on the door frame 3 .

[0044] Reference Figure 6 and Figure 7 The hook plate 42 is divided into a hook 6, a connecting portion 421, a first bending portion 422 and a second bending portion 423. The connecting portion 421 is connected to the side flange 31 of the door frame. The first bending portion 422 is formed by vertically bending the connecting portion 421. The second bending portion 423 is formed by vertically bending the first bending portion 422 toward the door frame 3. A hook 6 extends from the second bending portion 423. The hook 6 includes a supporting portion 61, a locking portion 62 and a limiting portion 63. The locking portion 62 is formed by vertically extending upward from the end of the supporting portion 61. The limiting portion 63 is formed by vertically extending downward from the end of the supporting portion 61. Four hooks 6 are evenly arranged along the height direction. The connecting component 5 includes a hanging groove 52, and the hanging groove 52 is located at a position on the connecting plate 23 corresponding to the hook 6.

[0045] The implementation principle of the embodiment of the present application is: the hook plate 42 is connected to the side flange 31 of the door frame, and the hook 6 extends from the makeshift groove 32 on the door frame 3. When the cabinet door 2 needs to be closed, the hook 6 is inserted into the hanging groove 52 on the cabinet door 2 and hooked to fix the cabinet door 2 and the cabinet body 1. Then the threaded bolt 51 is passed through the bolt hole 211, the open groove 231 and the rivet fixing nut 41 on the door frame 3 to tighten, thereby further fixing the cabinet door 2 and the cabinet body 1.

[0046] Embodiment 3: A fully insulated ring main unit, including embodiment 1 or embodiment 2.

[0047] Unless otherwise defined, the technical terms or scientific terms used in this application should be understood by people with ordinary skills in the field to which this application belongs. The words "first", "second", "third" and similar words used in the specification and claims of this application do not indicate any order, quantity or importance, but are only used to distinguish different components. "One" or "one" and similar words do not indicate a quantitative limit, but indicate that there is at least one. "Include" or "comprise" and similar words mean that the elements or objects appearing before "include" or "comprise" include the elements or objects listed after "include" or "comprise" and their equivalents, and do not exclude other elements or objects. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0048] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A cabinet door anti-impact structure for a fully insulated ring main unit, comprising a cabinet body (1) and a cabinet door (2), characterized in that: The cabinet body (1) is provided with a door frame (3), a fixing assembly (4) is provided on a side of the door frame (3) facing the cabinet door (2), and a connecting assembly (5) is provided on a side of the cabinet door (2) facing the door frame (3), the fixing assembly (4) comprises a rivet fixing nut (41), and the connecting assembly (5) comprises a threaded bolt (51).

2. The anti-impact structure of the cabinet door of the fully insulated ring main unit according to claim 1 is characterized in that: The cabinet door (2) comprises a door panel (21) and an upper cabinet door flange, a lower cabinet door flange and a cabinet door side flange (22) formed by folding the outer periphery of the door panel (21) vertically toward one side of the door frame (3); the cabinet door side flange (22) is bent toward the inner side of the cabinet door to form a connecting plate (23); the connecting plate (23) is parallel to the door panel (21); a bolt hole (211) is formed on the door panel (21); an opening groove (231) is formed on the connecting plate (23) at a position corresponding to the bolt hole (211); the rivet fixing nut (41) is fixedly connected to the door frame (3); and the threaded bolt (51) passes through the bolt hole (211) and the opening groove (231) to be connected to the rivet fixing nut (41).

3. The anti-impact structure of the cabinet door of the fully insulated ring main unit according to claim 2 is characterized in that: The rivet fixing nuts (41) are evenly arranged along both sides of the door frame (3), and the bolt holes (211) are evenly arranged at positions corresponding to the door panel (21) and the rivet fixing nuts (41).

4. The anti-impact structure of the cabinet door of the fully insulated ring main unit according to claim 2 is characterized in that: The door frame (3) is vertically folded toward the inside of the cabinet body (1) to form an upper door frame flange, a lower door frame flange and a side door frame flange (31), and the side door frame flange (31) is provided with a fireproof baffle (7), and the front end surface of the fireproof baffle (7) protrudes beyond the door frame (3).

5. The anti-impact structure of the cabinet door of the fully insulated ring main unit according to claim 4, characterized in that: The fixing assembly (4) comprises a hook plate (42), the hook plate (42) comprising a connecting portion (421) abutting against a door frame side flange (31), a first bent portion (422) and a second bent portion (423), the second bent portion (423) being provided with a hook (6), the door frame (3) being provided with a clearance groove (32) for the hook (6) to extend out, the connecting assembly (5) comprising a hanging groove (52), the hanging groove (52) being provided on the connecting plate (23).

6. The anti-impact structure of the cabinet door of the fully insulated ring main unit according to claim 5, characterized in that: The hook (6) comprises a support portion (61) parallel to the ground, a locking portion (62) extending vertically upward from the end of the support portion (61), and a limiting portion (63) extending vertically downward from the end of the support portion (61), wherein the length of the locking portion (62) is greater than the length of the limiting portion (63).

7. The anti-impact structure of the cabinet door of the fully insulated ring main unit according to claim 5, characterized in that: The hooks (6) are evenly arranged along the height direction of the second bent portion (423), and the clearance grooves (32) and the hanging grooves (52) are arranged corresponding to the hooks (6).

8. The anti-impact structure of the cabinet door of the fully insulated ring main unit according to claim 1, characterized in that: The cabinet door (2) is provided with an observation window (8).

9. A fully insulated ring main unit, characterized in that: It comprises the anti-impact structure of the cabinet door of the fully insulated ring main unit as described in any one of claims 1-8.

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