Arc extinguishing structure of rapid switching complete equipment

Abstract

The utility model discloses an arc extinguishing structure of a rapid switching complete device, which relates to the technical field of arc extinguishing devices of switching devices, and comprises a mounting strip mounted on a switch cabinet, and further comprises a mounting plate fixedly mounted on the mounting strip; the component contact switch is fixedly arranged on the mounting plate; the arc extinguishing device is arranged on the mounting plate at the component contact switch; the mounting unit is arranged between the mounting plate and the arc extinguishing device; the arc-extinguishing device comprises an arc-extinguishing cover, a plurality of arc-extinguishing sheets and a detachable fixing assembly, through arrangement of the installation unit, a traditional bolt installation mode of the arc-extinguishing device is changed, the situation that the arc-extinguishing device is not easy to disassemble due to corrosion can be avoided, meanwhile, the arc-extinguishing device is convenient to disassemble and assemble, meanwhile, the installation mode of the arc-extinguishing sheets is changed, and the installation efficiency of the arc-extinguishing device is improved. And under the condition that the arc extinguishing device is not disassembled, only the corroded arc extinguishing sheet is disassembled and replaced, so that the maintenance cost and the maintenance efficiency are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of arc extinguishing devices for switch components, in particular to an arc extinguishing structure for a fast switching complete set of devices. Background Art

[0002] The arc extinguishing device allows the arc to contact with a fixed medium, reducing the arc temperature to accelerate the arc extinction. It is often used at the switch contacts of components in switch cabinets to prevent the components from being burned by high temperatures due to disconnection caused by external factors.

[0003] At present, the arc extinguishing device is still fastened to the switch contacts of the components by bolts. However, when the switch cabinet is used outdoors for a long time, the arc extinguishing device and the arc extinguishing plates inside it will be corroded as well as the installation bolts due to external weather factors and high humidity. This makes it extremely inconvenient to replace the arc extinguishing device. For this reason, we propose an arc extinguishing structure for quickly switching the complete set of equipment.

[0004] The above content is only used to assist in understanding the technical solution of the present invention and does not mean that the above content is the closest prior art. Utility Model Content

[0005] The purpose of the present utility model is to provide an arc extinguishing structure for quickly switching a complete set of devices, so as to solve the problem raised in the above background technology that when the humidity is too high due to external weather factors, the arc extinguishing device and the arc extinguishing plates therein as well as the mounting bolts will be corroded, which makes it extremely inconvenient to replace the arc extinguishing device.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an arc extinguishing structure for a rapid switching device, comprising a mounting bar mounted on a switch cabinet, and further comprising:

[0007] A mounting plate, fixedly mounted on the mounting bar;

[0008] A component contact switch is fixedly mounted on the mounting plate;

[0009] an arc extinguishing device, provided on the mounting plate at the component contact switch;

[0010] An installation unit is provided between the installation plate and the arc extinguishing device and is used for installing the arc extinguishing device as a whole;

[0011] Wherein, the arc extinguishing device comprises:

[0012] An arc extinguishing hood is mounted on the mounting plate through the mounting unit;

[0013] A plurality of arc-extinguishing sheets are evenly inserted into the arc-extinguishing cover in an arc shape;

[0014] A detachable fixing assembly is provided on the arc extinguishing cover and is used for fixing the arc extinguishing piece after being plugged in.

[0015] Preferably, the installation unit includes:

[0016] An inserting plate, one end of which is fixed on the arc extinguishing cover, and the other end of which is inserted through the mounting plate to the other side of the mounting plate;

[0017] A slot is provided at an end of the plug-in plate away from the arc extinguishing cover;

[0018] A fixing plate is inserted into the slot and fits in with the mounting plate;

[0019] The limiting member is provided on the mounting plate and is used for limiting the two ends of the fixing plate inserted into the slot.

[0020] Preferably, the limiting member includes:

[0021] A concave plate is slidably arranged on the mounting plate at the position of the fixed plate;

[0022] An elastic telescopic rod has one end connected to the concave plate and the other end connected to a fixing bar, and the fixing bar is fixed to the mounting plate.

[0023] Preferably, the concave plate is arranged to be inclined inward away from the end of the elastic telescopic rod.

[0024] Preferably, the arc extinguishing hood is provided with a card slot for inserting multiple arc extinguishing hoods, and the detachable fixing assembly is inserted into the arc extinguishing hood at the position of the card slot.

[0025] Preferably, the detachable fixing assembly includes:

[0026] An arc-shaped clamping plate is clamped into the arc extinguishing cover at the clamping slot and abuts against the arc extinguishing piece;

[0027] Two sets of fixing grooves are provided on the arc extinguishing cover at both ends of the arc-shaped clamping plate, and the arc-shaped clamping plate is provided with connecting grooves matching the fixing grooves;

[0028] An L-shaped clip strip, one end of which is slidably arranged in the fixing groove, and the other end of which extends to the outer end of the arc extinguishing cover to form a trapezoidal arrangement;

[0029] A fixing spring is arranged in the fixing groove, and two ends of the fixing spring are respectively in contact with the L-shaped clip and the inner wall of the fixing groove.

[0030] Compared with the prior art, the beneficial effects of the present invention are:

[0031] The utility model changes the traditional bolt installation method of the arc extinguishing device through the setting of the installation unit, which can prevent the situation where corrosion makes it difficult to disassemble, and also facilitates the disassembly and installation of the arc extinguishing device. At the same time, the installation method of the arc extinguishing plate is changed, and only the corroded arc extinguishing plate can be disassembled and replaced without disassembling the arc extinguishing device, thereby reducing maintenance costs and maintenance efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0033] Figure 2 This is a schematic diagram of the overall structure of the utility model from another angle;

[0034] Figure 3 It is a partial side sectional view of the utility model;

[0035] Figure 4 This is a back view of the overall structure of the utility model;

[0036] Figure 5 for Figure 3 Enlarged view of point A in the middle;

[0037] Figure 6 for Figure 4 Enlarged view of point B in the middle.

[0038] Figure markings: 1-mounting bar; 2-mounting plate; 3-component contact switch; 4-arc extinguishing device; 41-arc extinguishing cover; 411-card slot; 42-arc extinguishing plate; 43-detachable fixing assembly; 431-arc-shaped card plate; 432-fixing slot; 433-L-shaped card strip; 434-fixing spring; 435-connecting slot; 5-mounting unit; 51-plug-in board; 52-slot; 53-fixing plate; 54-limiting member; 541-concave plate; 542-elastic telescopic rod; 543-fixing bar. DETAILED DESCRIPTION

[0039] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0040] See also Figure 1-6 The utility model provides a technical solution: an arc extinguishing structure of a fast switching complete set of devices, including a mounting bar 1 installed on a switch cabinet, and also including:

[0041] The mounting plate 2 is fixed on the mounting bar 1 by bolts;

[0042] Component contact switch 3, fixed on the mounting plate 2;

[0043] An arc extinguishing device 4 is provided on the mounting plate 2 at the component contact switch 3;

[0044] The mounting unit 5 is provided between the mounting plate 2 and the arc extinguishing device 4 and is used for the complete installation of the arc extinguishing device 4;

[0045] Wherein, the arc extinguishing device 4 includes:

[0046] The arc extinguishing cover 41 is installed on the mounting plate 2 through the mounting unit 5;

[0047] A plurality of arc-extinguishing pieces 42 are evenly inserted into the arc-extinguishing cover 41 in an arc shape;

[0048] The detachable fixing assembly 43 is provided on the arc extinguishing cover 41 and is used for fixing the arc extinguishing piece 42 after insertion and for disassembly and replacement.

[0049] Wherein, the installation unit 5 includes:

[0050] An inserting plate 51, one end of which is fixed on the arc extinguishing cover 41, and the other end of which is inserted through the mounting plate 2 to the other side of the mounting plate 2;

[0051] A slot 52 is provided at an end of the inserting plate 51 away from the arc extinguishing cover 41;

[0052] A fixing plate 53 is inserted into the slot 52 and fits in with the mounting plate 2;

[0053] The limiting members 54 are provided on the mounting plate 2 and are used to limit the two ends of the fixing plate 53 inserted into the slot 52 .

[0054] In addition, the limiting member 54 includes:

[0055] The concave plate 541 is slidably arranged on the mounting plate 2 at the position of the fixing plate 53. The concave width of the concave plate 541 is adapted to the length of the fixing plate 53 so that the fixing plate 53 can be snapped into the concave groove of the concave plate 541.

[0056] An elastic telescopic rod 542, one end of which is connected to the concave plate 541, and the other end of which is connected to a fixing bar 543, wherein the fixing bar 543 is fixed to the mounting plate 2;

[0057] When installing the arc extinguishing device 4, the arc extinguishing device 4 is first inserted into the mounting plate 2 through the plug plate 51, and then the plug plate 51 is moved away from the slot 52 at one end of the arc extinguishing device 4 to the other side of the mounting plate 2, and then the concave plate 541 is pulled to make the concave plate 541 slide away from the position of the plug plate 51, and then the fixing plate 53 is inserted into the slot 52, and then the concave plate 541 is released, and then the concave plate 541 will limit the two sides of the fixing plate 53, and at the same time, under the action of the elastic telescopic rod 542, the two ends of the fixing plate 53 will continue to be limited to prevent the concave plate 541 from being separated from this position by external force.

[0058] At the same time, the concave plate 541 is tilted inward away from the end of the elastic telescopic rod 542. This setting makes it possible to adjust the position of the fixed plate 53 by the tilted position when the concave plate 541 moves toward the inserted fixed plate 53 for limiting, so that the concave groove of the concave plate 541 can automatically fit into the fixed plate 53.

[0059] The arc extinguishing cover 41 is provided with a card slot 411 for inserting multiple arc extinguishing covers 41 , and the detachable fixing assembly 43 is inserted into the arc extinguishing cover 41 at the position of the card slot 411 .

[0060] Finally, the detachable fixing assembly 43 includes:

[0061] The arc-shaped clamping plate 431 is clamped into the arc-extinguishing cover 41 at the position of the clamping slot 411 and abuts against the arc-extinguishing piece 42;

[0062] Two sets of fixing grooves 432 are provided on the arc extinguishing cover 41 at both ends of the arc-shaped clamping plate 431 , and the arc-shaped clamping plate 431 is provided with connecting grooves 435 matching the fixing grooves 432 ;

[0063] An L-shaped clip 433 has one end slidingly disposed in the fixing groove 432 and the other end extending to the outer end of the arc extinguishing cover 41 in a trapezoidal configuration;

[0064] A fixing spring 434 is disposed in the fixing groove 432 , with both ends of the fixing spring 434 respectively abutting against the L-shaped clip 433 and the inner wall of the fixing groove 432 ;

[0065] After each arc extinguishing piece 42 is clamped on the arc extinguishing cover 41 from the clamping groove 411 position, the arc clamping plate 431 is then clamped into the clamping groove 411 from the clamping groove 411 position. When the arc clamping plate 431 approaches the L-shaped clamping strip 433, it squeezes the L-shaped clamping strip 433, thereby driving the L-shaped clamping strip 433 to slide a distance toward the lower end of the fixed groove 432 so that the outer end of the L-shaped clamping strip 433 passes through the arc clamping plate 431 from the connecting groove 435 position, and then the L-shaped clamping strip 433 is reset under the action of the fixing spring 434, thereby The arc-shaped clamping plate 431 is clamped by the trapezoidal portion of the L-shaped clamping strip 433, thereby realizing a detachable connection of the arc-shaped clamping plate 431. This design facilitates the rapid disassembly and replacement of the arc-extinguishing plate 42 when the arc-extinguishing device 4 is used for a long time and the arc-extinguishing plate 42 thereon is corroded. At the same time, the installation unit 5 is set to distinguish it from the existing bolt connection to avoid the problem of corrosion of the installed parts making them difficult to replace. The installation unit 5 solves the above problem and also facilitates disassembly.

Claims

1. An arc extinguishing structure for a fast switching device, comprising a mounting bar (1) mounted on a switch cabinet, characterized in that: Also includes: A mounting plate (2) fixedly mounted on the mounting bar (1); A component contact switch (3) is fixedly mounted on the mounting plate (2); An arc extinguishing device (4) is provided on the mounting plate (2) at the component contact switch (3); An installation unit (5) is provided between the installation plate (2) and the arc extinguishing device (4) and is used for complete installation of the arc extinguishing device (4); Wherein, the arc extinguishing device (4) comprises: An arc extinguishing hood (41) is mounted on the mounting plate (2) via the mounting unit (5); A plurality of arc-extinguishing pieces (42) are evenly inserted into the arc-extinguishing cover (41) in an arc shape; A detachable fixing assembly (43) is provided on the arc extinguishing cover (41) and is used for fixing, disassembling and replacing the arc extinguishing piece (42) after plugging.

2. The arc extinguishing structure of the rapid switching device according to claim 1, characterized in that: The installation unit (5) comprises: An inserting plate (51), one end of which is fixed on the arc extinguishing cover (41), and the other end of which is inserted through the mounting plate (2) to the other side of the mounting plate (2); A slot (52) is provided at an end of the inserting plate (51) away from the arc extinguishing cover (41); A fixing plate (53) is inserted into the slot (52) and fits in contact with the mounting plate (2); A limiting member (54) is provided on the mounting plate (2) and is used to limit the two ends of the fixing plate (53) inserted into the slot (52).

3. The arc extinguishing structure of the rapid switching device according to claim 2, characterized in that: The limiting member (54) includes: A concave plate (541) is slidably arranged on the mounting plate (2) at the position of the fixing plate (53); An elastic telescopic rod (542) has one end connected to the concave plate (541) and the other end connected to a fixing bar (543), wherein the fixing bar (543) is fixed to the mounting plate (2).

4. The arc extinguishing structure of the rapid switching device according to claim 3, characterized in that: The concave plate (541) is arranged to be inclined inwardly away from the end of the elastic telescopic rod (542).

5. The arc extinguishing structure of the rapid switching device according to claim 1, characterized in that: The arc extinguishing cover (41) is provided with a card slot (411) for inserting multiple arc extinguishing covers (41), and the detachable fixing component (43) is inserted into the arc extinguishing cover (41) at the position of the card slot (411).

6. The arc extinguishing structure of the rapid switching device according to claim 5, characterized in that: The detachable fixing assembly (43) comprises: An arc-shaped clamping plate (431) is clamped into the arc extinguishing cover (41) at the position of the clamping slot (411) and abuts against the arc extinguishing piece (42); Two groups of fixing grooves (432) are provided on the arc extinguishing cover (41) at both ends of the arc-shaped clamping plate (431), and the arc-shaped clamping plate (431) is provided with a connecting groove (435) matching the fixing grooves (432); An L-shaped clip (433) has one end slidingly arranged in the fixing groove (432) and the other end extending to the outer end of the arc extinguishing cover (41) to form a trapezoidal arrangement; A fixing spring (434) is disposed in the fixing groove (432), and two ends of the fixing spring (434) respectively abut against the L-shaped clip (433) and the inner wall of the fixing groove (432).

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