Locking device of dynamic sealing structure of gas-insulated switchgear

Abstract

The utility model relates to the technical field of gas-insulated switchgear accessories, in particular to a locking device of a dynamic sealing structure of a gas-insulated switchgear. According to the technical scheme, the locking device comprises a locking device body installed on an inflatable cabinet door and an insertion rod connected to the inflatable cabinet and used for being inserted into the locking device body, and further comprises a plurality of locking clamping grooves formed in the insertion rod and distributed linearly. According to the utility model, the insertion rod, the locking clamping groove, the locking mechanism, the rotating mechanism and other structures are matched, and the manual locking device is designed, so that the operation is simpler and more convenient, the operation can be easily carried out without extra training, and the device is suitable for various scenes. Meanwhile, misoperation can be prevented in the operation process, and safe and reliable operation of equipment is ensured. And the manual locking device does not depend on electric power and does not need to consume energy, so that energy consumption is reduced, and environmental protection is facilitated. In addition, compared with an electric or electronic locking device, the manual locking device is low in cost, and the overall cost of equipment is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of accessories for gas-insulated switchgear, in particular to a locking device for the dynamic sealing structure of a gas-insulated switchgear. Background Art

[0002] A gas-insulated switchgear is a new type of high-voltage switchgear, and its main feature is to adopt a fully insulated and fully enclosed structure, and the live parts are sealed in a stainless steel gas box. The dynamic sealing structure of the gas-insulated switchgear mainly includes parts such as a gas box, live parts, a sealing structure, an operating mechanism, and cable connections. The design of these parts takes into account the sealing performance and anti-environmental pollution ability, enabling the gas-insulated switchgear to operate stably in a harsh environment. The locking device for the dynamic sealing structure of the gas-insulated switchgear is mainly to ensure the sealing performance and prevent accidental opening. Some current locking devices for the dynamic sealing structure of gas-insulated switchgears (such as electronic locking devices) are relatively complex to operate and have certain skill requirements for operators. Improper operation may cause equipment damage or safety accidents. In addition, the electronic locking device consumes a certain amount of energy during operation. Although the energy consumption is low, the long-term operation will still increase the energy cost. Therefore, the utility model designs a locking device for the dynamic sealing structure of a gas-insulated switchgear. Content of the Utility Model

[0003] The purpose of the utility model is to propose a locking device for the dynamic sealing structure of a gas-insulated switchgear aiming at the problems existing in the background art.

[0004] The technical solution of the utility model: A locking device for the dynamic sealing structure of a gas-insulated switchgear includes a locking device body installed on the door of the gas-insulated switchgear and a plug rod connected to the gas-insulated switchgear for inserting into the locking device body, and further includes: a plurality of locking slots arranged linearly on the plug rod, and a locking mechanism for locking the gas-insulated switchgear after clamping the plug rod is arranged inside the locking device body; a rotating mechanism arranged on the locking device body for quickly switching the locking mechanism.

[0005] Optionally, the locking mechanism includes a slot opened inside the locking device body, a pair of rotating seats are fixedly connected inside the slot, a rotating rod is rotatably connected to each rotating seat, a hook for clamping the locking slot on the plug rod is fixedly connected to one end of each rotating rod, a pair of first springs corresponding to the rotating rods are fixedly connected to the inner wall of the locking device body, and one end of each first spring is fixedly connected to the rotating rod.

[0006] Optionally, the rotating mechanism includes a first rotating block rotatably connected to the main body of the locking device. One end of the first rotating block is fixedly connected to a second rotating block, and a convex block is fixedly connected to the second rotating block. A first groove and a second groove are formed at one end of the main body of the locking device close to the second rotating block. One end of the convex block is fixedly connected to a buckle for engaging with the first groove and the second groove. The other end of the first rotating block is fixedly connected to a rotating plate, and clamping grooves are formed on opposite surfaces of the rotating rod. A pair of protrusions for engaging with the clamping grooves are fixedly connected to the rotating plate.

[0007] Optionally, a screwing block is fixedly connected to the second rotating block.

[0008] Optionally, a first sealing ring for reducing the gap between the main body of the locking device and the first rotating block is provided inside the main body of the locking device.

[0009] Optionally, a second spring for pushing the rotating plate to abut against one end of the insertion rod is movably sleeved on the first rotating block.

[0010] Optionally, a second sealing ring is sleeved on the main body of the locking device.

[0011] Compared with the prior art, the utility model has the following beneficial technical effects:

[0012] By means of the cooperation of structures such as the insertion rod, the locking slot, the locking mechanism and the rotating mechanism, the design of the manual locking device makes the operation simpler and more convenient, and it can be easily mastered without additional training, and is applicable to various scenarios. At the same time, misoperation can be prevented during the operation process to ensure the safe and reliable operation of the equipment. And the manual locking device does not rely on electricity and does not consume energy, thereby reducing energy consumption and being beneficial to environmental protection. In addition, compared with electric or electronic locking devices, the manual locking device has a lower cost, reducing the overall cost of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The structural schematic diagram of a locking device of a dynamic sealing structure of an inflatable cabinet according to the utility model is given;

[0014] Figure 2 is Figure 1 the cross-sectional structural schematic diagram of;

[0015] Figure 3 is Figure 2 the enlarged schematic diagram at A in;

[0016] Figure 4 is Figure 3 the structural schematic diagram of the rotating plate in.

[0017] Reference numerals: 1, body of the locking device; 11, slot; 12, rotating base; 13, rotating rod; 14, clamping groove; 15, hook; 16, first spring; 17, first groove; 18, second groove; 19, first sealing ring; 2, first rotating block; 21, screwing block; 22, convex block; 23, buckle; 24, second rotating block; 25, second spring; 26, rotating plate; 27, protrusion; 3, second sealing ring; 4, insertion rod; 41, locking clamping groove. Detailed implementation manners

[0018] The technical solutions of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model.

[0019] The components of the embodiments of the present utility model generally described and shown in the drawings herein can be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the claimed present utility model, but merely represents selected embodiments of the present utility model.

[0020] All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the scope of protection of the present utility model.

[0021] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation of the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0022] It should be noted that the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device including a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0023] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0024] Embodiment

[0025] As Figures 1-4 As shown, a locking device for the dynamic sealing structure of an inflatable cabinet proposed by the present utility model includes a locking device body 1 installed on the door of the inflatable cabinet and a plug rod 4 connected to the inflatable cabinet for inserting into the locking device body 1. A second sealing ring 3 is sleeved on the locking device body 1, and a first sealing ring 19 for reducing the gap between the locking device body 1 and the first rotating block 2 is arranged inside the locking device body 1. The second sealing ring 3 and the first sealing ring 19 are sealing rings, and the sealing rings play an important role in preventing leakage, preventing impurities from entering, and ensuring safety, and are essential key components in the operation process of various equipment and systems. It further includes: a plurality of locking slots 41 linearly arranged on the plug rod 4, and the function of the locking slots 41 is to allow the hooks 15 to be inserted, so as to prevent the plug rod 4 from disengaging from the locking device body 1. A locking mechanism for locking the inflatable cabinet after the plug rod 4 is caught is arranged inside the locking device body 1; a rotating mechanism for quickly opening and closing the locking mechanism is arranged on the locking device body 1.

[0026] Furthermore, the locking mechanism includes a slot 11 opened inside the locking device body 1, and a pair of rotating seats 12 are fixedly connected inside the slot 11. The function of the rotating seats 12 is to support the rotation of the end of the rotating rod 13 without the hook 15. Rotating rods 13 are rotatably connected to the rotating seats 12 respectively, and hooks 15 for catching the locking slots 41 on the plug rod 4 are fixedly connected to one ends of the rotating rods 13 respectively. A pair of first springs 16 corresponding to the rotating rods 13 are fixedly connected to the inner wall of the locking device body 1. The function of the first springs 16 is to make the rotating rods 13 automatically move towards the locking slots 41 on the plug rod 4 after the protrusions 27 do not press against them. One ends of the first springs 16 are fixedly connected to the rotating rods 13 respectively.

[0027] Furthermore, the rotating mechanism includes a first rotating block 2 rotatably connected to the main body 1 of the locking device. A second spring 25 is movably sleeved on the first rotating block 2 and is used to push the rotating plate 26 against one end of the insertion rod 4. One end of the first rotating block 2 is fixedly connected to a second rotating block 24, and a screwing block 21 is fixedly connected to the second rotating block 24. The function of the screwing block 21 is to make it easier to rotate the second rotating block 24. A convex block 22 is fixedly connected to the second rotating block 24. A first groove 17 and a second groove 18 are formed at one end of the main body 1 of the locking device close to the second rotating block 24. When the buckle 23 is inserted into the first groove 17, the insertion rod 4 cannot be pulled out of the main body 1 of the locking device. When the buckle 23 is inserted into the second groove 18, the insertion rod 4 can be pulled out of the main body 1 of the locking device. One end of the convex block 22 is fixedly connected to a buckle 23 for being inserted into the first groove 17 and the second groove 18. The function of the buckle 23 is to make it necessary to use greater force to rotate the second rotating block 24, thereby preventing the second rotating block 24 from rotating randomly when being accidentally touched. The other end of the first rotating block 2 is fixedly connected to a rotating plate 26. Slots 14 are formed on the opposite surfaces of the rotating rod 13. A pair of protrusions 27 for being inserted into the slots 14 are fixedly connected to the rotating plate 26. The function of the protrusions 27 is to abut against the rotating rod 13 and prevent it from rotating towards the rotating plate 26 after being inserted into the slots 14.

[0028] In this embodiment, when the locking device of the gas-insulated switchgear dynamic sealing structure needs to be used, as Figure 1 shown, the insertion rod 4 is installed on the gas-insulated switchgear. After the gas-insulated switchgear door is closed, the gas-insulated switchgear door drives the main body 1 of the locking device to move, so that one end of the insertion rod 4 is inserted into the slot 11 in the main body 1 of the locking device. First, rotate the screwing block 21 to drive the second rotating block 24 to rotate. After the convex block 22 drives the buckle 23 to disengage from the second groove 18, it is then inserted into the first groove 17. As Figure 2 shown, at the same time, the second rotating block 24 drives the first rotating block 2, the rotating plate 26, and a pair of protrusions 27 on the rotating plate 26 to disengage from the slots 14 on the rotating rod 13 in sequence. As Figure 3 shown, at this time, the rotating rod 13 is elastically pushed by the first spring 16, so that the pair of rotating rods 13 rotate around the top of the rotating seat 12 towards the rotating plate 26. The tops of the rotating rods 13 drive the hooks 15 to be inserted into the locking slots 41 on the insertion rod 4, so that the gas-insulated switchgear and the gas-insulated switchgear door can be locked, which is simple and easy to operate. When the door needs to be opened, only need to rotate the screwing block 21 in the opposite direction again and reverse the above operations, which will not be elaborated here, and then the door and the gas-insulated switchgear can be quickly opened.

[0029] The preferred embodiments of the present utility model described above are only used to assist in the description of the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to only the specific embodiments. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification in order to better explain the principles and practical applications of the present utility model, so that those skilled in the relevant technical fields can well understand and utilize the present utility model. The present utility model is only limited by the claims and their full scope and equivalents.

Claims

1. A locking device for the dynamic sealing structure of an inflatable cabinet, comprising a locking device body (1) installed on the door of the inflatable cabinet and a plug rod (4) connected to the inflatable cabinet for inserting into the locking device body (1), characterized in that, Further included are: A plurality of locking slots (41) linearly arranged on the insertion rod (4). An internal locking mechanism is provided in the locking device body (1) for locking the gas-filled cabinet after the insertion rod (4) is clamped. A rotating mechanism provided on the locking device body (1) for quickly switching the locking mechanism.

2. The locking device of a dynamic sealing structure of an inflatable cabinet according to claim 1, characterized in that, The locking mechanism includes a slot (11) opened in the locking device body (1). A pair of rotating seats (12) are fixedly connected inside the slot (11). Rotating rods (13) are rotatably connected to the rotating seats (12). Hooks (15) for clamping the locking slots (41) on the insertion rod (4) are fixedly connected to one ends of the rotating rods (13). A pair of first springs (16) corresponding to the rotating rods (13) are fixedly connected to the inner wall of the locking device body (1). One ends of the first springs (16) are fixedly connected to the rotating rods (13).

3. The locking device of a dynamic sealing structure of an inflatable cabinet according to claim 2, characterized in that, The rotating mechanism includes a first rotating block (2) rotatably connected to the locking device body (1). A second rotating block (24) is fixedly connected to one end of the first rotating block (2). A convex block (22) is fixedly connected to the second rotating block (24). A first groove (17) and a second groove (18) are opened at one end of the locking device body (1) close to the second rotating block (24). A buckle (23) for being inserted into the first groove (17) and the second groove (18) is fixedly connected to one end of the convex block (22). A rotating plate (26) is fixedly connected to the other end of the first rotating block (2). Slots (14) are opened on the opposite surfaces of the rotating rods (13). A pair of protrusions (27) for being inserted into the slots (14) are fixedly connected to the rotating plate (26).

4. The locking device of a dynamic sealing structure of an inflatable cabinet according to claim 3, characterized in that, A screwing block (21) is fixedly connected to the second rotating block (24).

5. The locking device of a dynamic sealing structure of an inflatable cabinet according to claim 1, characterized in that, A first sealing ring (19) is provided in the locking device body (1) for reducing the gap between the locking device body (1) and the first rotating block (2).

6. The locking device of a dynamic sealing structure of an inflatable cabinet according to claim 3, characterized in that, A second spring (25) for pushing the rotating plate (26) to abut against one end of the insertion rod (4) is movably sleeved on the first rotating block (2).

7. The locking device of the dynamic sealing structure of the gas-insulated switchgear according to claim 1, characterized in that, A second sealing ring (3) is sleeved on the locking device body (1).

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