Electromagnetic shielding door of high-voltage cabinet

Abstract

The utility model provides an electromagnetic shielding door of a high-voltage cabinet. The electromagnetic shielding door comprises a door frame and a door body rotationally connected to the door frame. The locking piece comprises an upper locking piece and a lower locking piece; the pushing part comprises a driving structure, a first pushing rod and a second pushing rod, the upper locking part and the lower locking part extend into the door body from locking grooves formed in the door body respectively, and the first pushing rod and the second pushing rod push the upper locking part and the lower locking part away from the door body respectively to complete unlocking. The upper locking piece and the lower locking piece are arranged on the outer side wall of the door frame, holes are prevented from being formed in the door frame, the situation that the electromagnetic shielding effect of the door frame is affected due to damage to the door frame is reduced, the upper locking piece and the lower locking piece are automatically clamped into the locking grooves in the closing process of the door frame and the door body, and the locking effect is achieved. Therefore, the situation that an operator forgets to close the high-voltage cabinet door is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of high-voltage cabinets, and in particular relates to an electromagnetic shielding door for a high-voltage cabinet. Background Art

[0002] High-voltage distribution cabinet refers to an electrical product with a voltage level of 3.6kV to 550kV, which plays the role of switching, controlling or protecting in power generation, transmission, distribution, power conversion and consumption of power systems. It mainly includes high-voltage circuit breakers, high-voltage disconnectors and earthing switches, high-voltage load switches, high-voltage automatic reclosing and sectionalizers, high-voltage operating mechanisms, high-voltage explosion-proof distribution devices and high-voltage switch cabinets.

[0003] In some specific fields, high-voltage distribution cabinets need to be equipped with electromagnetic shielding cabinets and electromagnetic shielding doors to reduce interference from external electromagnetic signals or reduce external radiation of internal electromagnetic signals. However, due to the simple structure of high-voltage distribution cabinets, after the electromagnetic shielding door is installed on the electromagnetic shielding cabinet, it is limited by size and electromagnetic shielding requirements and cannot be equipped with a complex lock structure on the door to achieve a convenient locking function. It mainly relies on manual rotation operation to achieve the closing action. It is easy for operators to forget to close the electromagnetic shielding door during use, resulting in the failure of the shielding effect of the electromagnetic shielding door. Utility Model Content

[0004] The utility model provides an electromagnetic shielding door for a high-voltage cabinet, aiming to solve the problem that the electromagnetic shielding door mainly relies on manual rotation operation to achieve closing action due to size limitations and electromagnetic shielding requirements, and operators easily forget to close the electromagnetic shielding door during use, resulting in the failure of the electromagnetic shielding door's shielding effect.

[0005] The utility model is implemented in this way: a high-voltage cabinet electromagnetic shielding door comprises:

[0006] A door frame and a door body rotatably connected to the door frame;

[0007] A locking member, wherein the locking member comprises an upper locking member and a lower locking member;

[0008] The pushing member includes a driving structure, a first pushing rod and a second pushing rod. The upper locking member and the lower locking member extend from the lock grooves on the door body into the interior of the door body respectively. The first pushing rod and the second pushing rod push the upper locking member and the lower locking member away from the door body to complete unlocking.

[0009] Preferably, the upper locking member and the lower locking member are respectively arranged at the top and the bottom of the outer side of the door frame.

[0010] Preferably, the driving structure comprises a pushing gear and a handle;

[0011] The pushing gear is arranged inside the outer door body, and the first pushing rod and the second pushing rod are meshed and connected with the pushing gear;

[0012] The handle extends from a side of the outer door body away from the inner door body to the inside of the outer door body, and the portion of the handle extending to the inside of the outer door body is connected to the axis of the push gear;

[0013] Preferably, the first push rod includes a straight rod section and a rack section, the straight rod section extends out of the outer door body from the lock slot of the side wall of the outer door body; the rack section of the first push rod is away from the lock slot, and the rack section is meshed and connected with the push gear.

[0014] Preferably, a return spring seat is provided at one end of the rack section of the first push rod away from the straight rod section.

[0015] Preferably, the first push rod and the second push rod have the same structure.

[0016] Preferably, the door frame and the door body are connected by a hinge.

[0017] Preferably, the upper locking member comprises a lock body, a latch tongue and a spring seat;

[0018] A cavity is provided inside the lock body, the spring seat is arranged in the cavity, a notch is provided on the side wall of the lock body, the latch tongue extends from the notch to the outside of the lock body, wherein one end of the latch tongue located inside the cavity abuts against the spring seat.

[0019] Preferably, the upper locking member and the lower locking member have the same structure.

[0020] Preferably, the upper locking member and the lower locking member are arranged in a staggered manner to match the positions of the first push rod and the second push rod respectively.

[0021] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0022] 1. The electromagnetic shielding door of the high-voltage cabinet provided by the utility model completes the locking function by automatically snapping the upper locking member and the lower locking member into the lock groove during the closing process of the door frame and the door body, thereby preventing the operator from forgetting to close the high-voltage cabinet door.

[0023] 2. The electromagnetic shielding door of the high-voltage cabinet provided by the utility model is arranged on the outer wall of the door frame through the upper locking member and the lower locking member, so as to avoid setting holes on the door frame, reduce damage to the door frame and affect the electromagnetic shielding effect of the door frame, and the pushing member is also arranged on the outer door body, so as to avoid opening slots on the inner door body that bears the electromagnetic shielding function, thereby improving the electromagnetic shielding efficiency between the inner door body and the door frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1The utility model is a structural schematic diagram of an electromagnetic shielding door for a high-voltage cabinet.

[0025] Figure 2 The utility model is a schematic diagram of a door frame structure of an electromagnetic shielding door of a high-voltage cabinet.

[0026] Figure 3 The utility model provides a schematic structural diagram of a pusher, a first push rod and a second push rod of an electromagnetic shielding door of a high-voltage cabinet.

[0027] Figure 4 The utility model is a structural schematic diagram of a middle pusher and a handle of an electromagnetic shielding door of a high-voltage cabinet.

[0028] Figure 5 The utility model is a schematic structural diagram of a second push rod and a lower locking piece of an electromagnetic shielding door of a high-voltage cabinet.

[0029] Figure 6 The utility model is a structural schematic diagram of a lock body, a latch tongue and a spring seat of an electromagnetic shielding door of a high-voltage cabinet.

[0030] Description of reference numerals:

[0031] 100. Door frame;

[0032] 200, door body; 210, inner door body; 220, outer door body; 230, lock slot; 240, limit slot plate;

[0033] 310, pushing member; 320, first pushing rod; 330, second pushing rod; 340, return spring seat; 350, handle; 360, limit ring;

[0034] 400, locking member; 410, upper locking member; 411, lock body; 412, latch; 413, spring seat; 420, lower locking member. DETAILED DESCRIPTION

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0036] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0037] The utility model embodiment provides a high voltage cabinet electromagnetic shielding door, such as Figure 1-Figure 6 As shown, the electromagnetic shielding door of a high-voltage cabinet comprises:

[0038] A door frame 100 and a door body 200 rotatably connected to the door frame 100;

[0039] A locking member 400, wherein the locking member 400 includes an upper locking member 410 and a lower locking member 420, wherein the upper locking member 410 and the lower locking member 420 are respectively disposed at the top and the bottom of the door frame 100;

[0040] A push member, the push member includes a driving structure, a first push rod 320 and a second push rod 330, the upper locking member 410 and the lower locking member 420 extend from the lock slot 230 provided on the door body 200 into the interior of the door body respectively, and the first push rod 320 and the second push rod 330 push the upper locking member 410 and the lower locking member 420 away from the door body 200 to complete unlocking;

[0041] In the present application, the door frame 100 and the door body 200 are connected by hinges, the door frame 100 is embedded in the high-voltage cabinet, the door body 200 is composed of an inner door body 210 and an outer door body 220, the inner edge of the door frame 100 is provided with a copper bar structure adapted to the inner door body 210, and the outer edge of the inner door body 210 is also provided with a copper bar, where the copper bar is used to absorb electromagnetic signals, the structural principles of the door frame 100 and the door body 200 are all applied to existing technical equipment, and will not be described in detail;

[0042] An upper locking member 410 and a lower locking member 420 are independently arranged on the outer side of the door frame 100, and a locking groove 230 adapted to the upper locking member 410 and the lower locking member 420 is respectively arranged on the outer door body 220;

[0043] During the closing process of the door frame 100 and the door body 200, the upper locking member 410 and the lower locking member 420 are automatically inserted into the lock groove 230 to complete the locking effect. The upper locking member 410 and the lower locking member 420 adopt the structural principle of the spring lock tongue. When the door body 200 is closed, the locking effect is automatically completed, thereby preventing the operator from forgetting to close the high-voltage cabinet door. At the same time, the upper locking member 410 and the lower locking member 420 are arranged on the outer side wall of the door frame 100 to avoid setting holes on the door frame 100, thereby reducing damage to the door frame 100 and affecting the electromagnetic shielding effect of the door frame 100;

[0044] The push member mainly relies on the first push rod 320 and the second push rod 330 to achieve the purpose of unlocking. Before the door needs to be opened, the first push rod 320 and the second push rod 330 are adjusted to push out the upper locking member 410 and the lower locking member 420 respectively, so as to achieve the purpose of opening the high-voltage cabinet door. Since the door opening process requires operation, the possibility of accidental opening of the door body can be avoided. At the same time, the push member is also arranged on the outer door body, avoiding the opening of slots on the inner door body 210 that bears the electromagnetic shielding function; improving the electromagnetic shielding efficiency between the inner door body 210 and the door frame 100;

[0045] As a preferred implementation in this embodiment, the driving structure includes a pushing gear 310, a return spring seat 340 and a handle 350;

[0046] The pushing gear 310 is disposed inside the outer door body 220 , and the first pushing rod 320 and the second pushing rod 330 are meshed and connected with the pushing gear 310 ;

[0047] The first push rod 320 and the second push rod 330 are both provided with a return spring seat 340 at one end away from the locking slot 230;

[0048] The handle 350 extends from a side of the outer door body 220 away from the inner door body 210 to the inside of the outer door body 220 , and the portion of the handle 350 extending to the inside of the outer door body 220 is connected to the axis of the push gear 310 ;

[0049] In the present embodiment, the first push rod 320 and the second push rod 330 have the same structure, and are both composed of a straight rod section and a rack section. The rack section of the first push rod 320 is the end away from the lock slot 230, and the rack section of the first push rod 320 is meshed and connected with the push gear 310, while the straight rod section of the first push rod 320 extends toward one side of the lock slot 230. The straight rod section of the first push rod 320 will extend outward under the rotation of the rack section of the first push rod 320 and the push gear 310, and the upper locking member 410 located in the lock slot 230 will be pushed out of the lock slot 230 during the extension process; similarly, the second push rod 330 is the same as the first push rod 320, and the lower locking member 420 will be pushed out of another set of lock slots 230 under the rotation, completing the function of unlocking;

[0050] In this embodiment, a plurality of groups of rectangular limiting rings 360 are arranged around the straight rod sections of the first push rod 320 and the second push rod 330 to ensure the linearity of the movement of the first push rod 320 and the second push rod 330 during the sliding process, and to ensure that the first push rod 320 and the second push rod 330 can enter the corresponding locking groove 230;

[0051] The handle 350 is composed of prior art equipment such as a shaft and a handle piece, one end of the shaft is connected to the push gear 310, and the other end is connected to the handle piece; an opening can also be provided on the upper side wall of the shaft along the axial direction as needed, and a password lock or mechanical lock structure in the prior art can be provided on the outer door body 220, so that the lock tongue of the password lock or mechanical lock is inserted into the opening on the shaft, and the purpose of locking is achieved by preventing the handle 350 from rotating. Since the handle 350 cannot rotate, the upper locking piece 410 and the lower locking piece 420 will be constantly engaged in the lock groove 230;

[0052] In this embodiment, the reset spring seat 340 is a prior art, and the reset spring seat 340 is used to retract the first push rod 320 and the second push rod 330 when the push gear 310 has no deflection force; when the operator turns the handle 350 to make the deflection force generated by the push gear 310 disappear, the first push rod 320 and the second push rod 330 will be reset immediately, and will not affect the next insertion of the upper locking member 410 and the lower locking member 420;

[0053] As a preferred implementation in this embodiment, the upper locking member 410 includes a lock body 411, a latch tongue 412 and a spring seat 413;

[0054] The lock body 411 has a cavity inside, the spring seat 413 is arranged in the cavity, the side wall of the lock body 411 has a notch, the latch 412 extends from the notch to the outside of the lock body 411, wherein one end of the latch 412 located inside the cavity abuts against the spring seat 413;

[0055] In this embodiment, the spring seat 413 is a prior art mainly composed of a support and a spring, and mainly provides elastic force for the latch tongue 412. When the door body 200 reaches the door frame 100, the door body 200 will first press against the latch tongue 412 to shrink. When the lock groove 230 on the door body 200 reaches below the latch tongue 412, the latch tongue 412 will be inserted into the interior of the lock groove 230 under the action of the spring seat 413.

[0056] In this embodiment, the upper locking member 410 and the lower locking member 420 have the same structure and are arranged opposite to each other. When the door body 200 is attached to the door frame 100, the tongue structures of the upper locking member 410 and the lower locking member 420 are both facing the door body 200 and inserted into the interior of the door body 200. The upper locking member 410 and the lower locking member 420 are arranged in a staggered position to match the positions of the first push rod 320 and the second push rod 330 respectively.

[0057] It should be noted that, for the above-mentioned embodiments, for the sake of simplicity, they are all described as a series of action combinations, but those skilled in the art should know that the utility model is not limited by the described action sequence, because according to the utility model, some steps may be performed in other sequences or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the utility model.

[0058] The above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit the protection scope of the utility model. Obviously, the described embodiments are only some embodiments of the utility model, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. Although the utility model has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the utility model according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the utility model in essence, and these technical solutions also belong to the scope of protection of the utility model.

Claims

1. A high voltage cabinet electromagnetic shielding door, characterized in that: include: A door frame (100) and a door body (200) rotatably connected to the door frame (100); A locking member (400), wherein the locking member (400) comprises an upper locking member (410) and a lower locking member (420); A pushing member, the pushing member includes a driving structure, a first pushing rod (320) and a second pushing rod (330), the upper locking member (410) and the lower locking member (420) respectively extend from a locking groove (230) provided on the door body (200) into the interior of the door body, and the first pushing rod (320) and the second pushing rod (330) push the upper locking member (410) and the lower locking member (420) away from the door body (200) to complete unlocking.

2. The electromagnetic shielding door for a high-voltage cabinet as claimed in claim 1, characterized in that: The upper locking member (410) and the lower locking member (420) are respectively arranged at the top and the bottom of the outer side of the door frame (100).

3. The electromagnetic shielding door for a high-voltage cabinet as claimed in claim 2, characterized in that: The driving structure includes a driving gear (310) and a handle (350); The pushing gear (310) is arranged inside the outer door body (220), and the first pushing rod (320) and the second pushing rod (330) are meshedly connected with the pushing gear (310); The handle (350) extends from a side of the outer door body (220) away from the inner door body (210) to the inside of the outer door body (220), and the portion of the handle (350) extending to the inside of the outer door body (220) is connected to the axis of the pushing gear (310).

4. The electromagnetic shielding door for a high-voltage cabinet as claimed in claim 3, characterized in that: The first push rod (320) comprises a straight rod section and a rack section, wherein the straight rod section extends out of the outer door body (220) from the lock groove (230) on the side wall of the outer door body (220); the rack section of the first push rod (320) is away from the lock groove (230), and the rack section is meshingly connected with the push gear (310).

5. The electromagnetic shielding door for a high-voltage cabinet as claimed in claim 4, characterized in that: A return spring seat (340) is provided at one end of the rack section of the first push rod (320) away from the straight rod section.

6. The electromagnetic shielding door for a high-voltage cabinet as claimed in claim 5, characterized in that: The first pushing rod (320) and the second pushing rod (330) have the same structure.

7. The electromagnetic shielding door for a high-voltage cabinet as claimed in claim 1, characterized in that: The door frame (100) and the door body (200) are connected via a hinge.

8. The electromagnetic shielding door for a high-voltage cabinet as claimed in claim 1, characterized in that: The upper locking member (410) comprises a lock body (411), a latch tongue (412) and a spring seat (413); A cavity is provided inside the lock body (411), the spring seat (413) is arranged in the cavity, a notch is provided on the side wall of the lock body (411), and the latch tongue (412) extends from the notch to the outside of the lock body (411), wherein one end of the latch tongue (412) located inside the cavity abuts against the spring seat (413).

9. The electromagnetic shielding door for a high-voltage cabinet as claimed in claim 8, characterized in that: The upper locking member (410) and the lower locking member (420) have the same structure.

10. The electromagnetic shielding door of a high-voltage cabinet as claimed in claim 9, characterized in that: The upper locking member (410) and the lower locking member (420) are arranged in a staggered manner to match the positions of the first pushing rod (320) and the second pushing rod (330) respectively.

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