Protective cover modularized knife switch

Abstract

The utility model discloses a knife switch with a modularized protective cover, which comprises a switch base and the protective cover capable of being spliced and combined, the protective cover comprises a side cover I, a side cover II and a plurality of middle covers capable of being spliced and arranged between the side cover I and the side cover II, a plurality of moving contact seats and static contact seats are arranged at the top of the switch base, and the moving contact seats and the static contact seats are arranged on the top of the switch base. The top of the moving contact seat is rotatably provided with a knife switch assembly, and the top of the static contact seat is provided with a knife switch chuck which is connected with the knife switch assembly in a matched manner. According to the utility model, the problem of a traditional integrated rigid structure is solved through the splicing combined type protective cover and the modular design, the economical efficiency, flexibility and environmental adaptability of the knife switch are significantly improved, and the knife switch is especially suitable for industrial and civil power distribution scenes needing frequent adjustment or diversified application.

Description

TECHNICAL FIELD

[0001] The utility model relates to a knife switch technical field, concretely relates to a protective cover modularization knife switch. BACKGROUND

[0002] The knife switch is a kind of simple structure, manual operation electrical switch, mainly by knife-shaped moving contact and static contact seat are formed, and circuit is connected or cut off by the insertion or breaking of switch blade.Usually used in low-voltage distribution system, as power isolation, circuit on-off or switching, applicable to ac / dc circuit.

[0003] The protective cover of existing knife switch is usually one-piece structure, and this kind of structure has the following shortcomings:

[0004] 1. Poor versatility: one-piece protective cover is fixed as three-phase or four-phase structure, cannot flexibly adapt to different phase number lines (such as three-phase or four-phase electricity), and different models of switches need to be equipped, increasing inventory cost.

[0005] 2. High cost: users need to purchase independent switches for different scenarios, waste materials and increase procurement costs.

[0006] 3. Installation limitation: if only three-phase wiring is required, the redundant part of four-phase protective cover may hinder installation or occupy space.

[0007] Therefore, the applicant has made beneficial design, found a method to solve the above problems, and the technical scheme to be introduced below is generated in this background. CONTENT OF UTILITY MODEL

[0008] The utility model provides a protective cover modularization knife switch to solve the problems in the above background technology.

[0009] To achieve the above object, the utility model provides the following technical scheme:

[0010] A protective cover modularization knife switch, including switch base and the splicing combination protective cover, the protective cover includes side cover one and side cover two, and a plurality of splicing settings in the middle cover between side cover one and side cover two, the switch base top is equipped with a plurality of moving contact seat and static contact seat, the moving contact seat top is equipped with the switch blade assembly that rotates, and the static contact seat top is equipped with the switch blade clamp that is connected with the switch blade assembly.

[0011] Preferably, the middle cover and the bottom right side of side cover one are equipped with connecting plate one, and the middle cover and the bottom left side of side cover two are equipped with connecting plate two.

[0012] Preferably, the top surface of switch base is equipped with a plurality of fixed holes, the bottom of middle cover is equipped with fixed column, and the fixed column is connected with fixed hole through screw.

[0013] Preferably, one side of the bottom of the connecting plate is provided with a connecting block one, one side of the bottom of the connecting plate two is provided with a connecting block two, the top of the connecting block one is provided with a clamping block, and the bottom of the connecting block two is provided with a clamping groove matched with the clamping block.

[0014] Beneficial effects

[0015] The above one or more technical solutions in the protective cover modularized knife switch provided by the embodiment of the utility model have at least one of the following technical effects:

[0016] The utility model discloses a modularization design to the protective cover can be spliced combination formula, can freely splice into three or four level protective cover, satisfies different phase number demand, need not to replace integral structure, the same set of components adapts to many scenes, reduces production, purchase and storage cost, makes user not need to repeatedly buy different specification switch, is applicable to diversification electrical system (such as industrial three -phase electricity, civilian single -phase electricity or special four -phase demand), expands application scene, assembles on demand, avoids redundant parts interference, saves distribution box space, especially suitable for compact equipment, if side cover one, side cover two or middle cover appears damage, can be replaced alone, need not to scrap the whole protective cover, reduces maintenance cost. The utility model discloses a splicable combination formula protective cover through modularization design solves the rigid structure problem of traditional integral formula, significantly improves the economy, flexibility and environmental adaptability of knife switch, especially suitable for the industrial and civilian power distribution scene of need frequent adjustment or diversification application. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is overall structure schematic diagram of the utility model;

[0018] Figure 2 It is side cover one structure schematic diagram of the utility model;

[0019] Figure 3 It is side cover two structure schematic diagram of the utility model;

[0020] Figure 4 It is middle cover structure schematic diagram of the utility model;

[0021] Figure 5 It is side cover one, side cover two, middle cover hidden structure schematic diagram of the utility model;

[0022] Figure 6 It is three level protective cover structure schematic diagram of the utility model;

[0023] Figure 7 It is four level protective cover structure schematic diagram of the utility model.

[0024] The correspondence between the reference signs of the figures and the component names is as follows:

[0025] 1, switch base; 2, protective cover; 3, side cover one; 4, side cover two; 5, middle cover; 6, moving contact seat; 7, static contact seat; 8, blade assembly; 9, blade chuck; 10, connecting plate one; 11, connecting plate two; 12, fixing hole; 13, fixing column; 14, connecting block one; 15, connecting block two; 16, clamping block; 17, clamping groove. DETAILED DESCRIPTION

[0026] The technical solutions of the utility model will be described clearly and completely below in combination with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without making creative efforts belong to the protection scope of the utility model.

[0027] In the description of the utility model, it needs to be understood that the directions or position relations indicated by the terms "upper", "lower", "left", "right" and the like are the directions or position relations shown based on the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements indicated must have a particular direction, be constructed and operated in a particular direction, and therefore cannot be understood as a limitation on the utility model.

[0028] In the description of the utility model, it also needs to be explained that, unless otherwise explicitly specified and limited, the terms "arrange", "mount", "connect", "connect" should be understood broadly, for example, can be fixedly connected, or can be detachably connected, or integrally connected; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium, or can be the communication inside two elements. For the ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0029] In order to avoid too many unnecessary details, the structure or function belonging to the known will not be described in detail in the following embodiments.

[0030] As shown in the figure, it is a protective cover modular knife switch structure schematic view of a preferred embodiment of the utility model; Figures 1-7

[0031] ​In this embodiment, the switch base 1 and the splicing combination protective cover 2 are included, the protective cover 2 includes side cover one 3 and side cover two 4, and a plurality of middle covers 5 which can be spliced between the side cover one 3 and the side cover two 4, the number of the middle covers 5 can be increased or decreased according to actual use, so that the protective cover 2 forms a modular structure, a plurality of moving contact seats 6 and static contact seats 7 are arranged on the top of the switch base 1, the moving contact seat 6 is rotatably provided with a knife switch assembly 8 on the top, the static contact seat 7 is provided with a knife switch chuck 9 connected with the knife switch assembly 8 on the top, and the knife switch chuck 9 is embedded in the knife switch chuck 9, so that the connection between the moving contact seat 6 and the static contact seat 7 is completed.

[0032] In this embodiment, the middle cover 5 and the bottom right side of the side cover one 3 are provided with a connecting plate one 10, and the middle cover 5 and the bottom left side of the side cover two 4 are provided with a connecting plate two 11. The connecting plate one 10 and the connecting plate two 11 are arranged in the same straight line.

[0033] In this embodiment, a plurality of fixing holes 12 are arranged on the top surface of the switch base 1, a fixing column 13 is arranged on the bottom of the middle cover 5, and the fixing column 13 is connected with the fixing hole 12 through a screw. The structure realizes the fixation of the middle cover 5.

[0034] In this embodiment, the connecting plate one 10 is provided with a connecting block one 14 on one side of the bottom, the connecting plate two 11 is provided with a connecting block two 15 on one side of the bottom, the connecting block one 14 is provided with a clamping block 16 on the top, the connecting block two 15 is provided with a clamping groove 17 matched with the clamping block 16 on the bottom, when the connecting plate one 10 and the connecting plate two 11 are consistent in height, the connecting block two 15 is higher than the connecting block one 14, when splicing, the connecting block 15 is placed above the connecting block one 14, so that the clamping block 16 is clamped into the clamping groove 17, thereby completing the splicing and fixation between the side cover one 3, the middle cover 5 and the side cover two 4.

[0035] The use scene and the combination principle example of the protective cover are shown in the utility model.

[0036] Three-phase circuit: two middle covers 5 are spliced between the side cover one 3 and the side cover two 4, covering three groups of contacts, forming a three-level protective cover 2.

[0037] Four-phase circuit: three middle covers 5 are spliced between the side cover one 3 and the side cover two 4, covering four groups of contacts, expanding to a four-level protective cover 2.

[0038] Mixed system: compatible with the phase number requirements of different regions or equipment (such as 380V three-phase or 220V single-phase combination).

[0039] The installation mode, connection mode or setting mode of the protective cover modular knife switch of the utility model are all common mechanical modes, as long as the beneficial effects can be achieved.

[0040] The technical matters not described in detail in the present utility model are all known technologies, and the skilled person in the art can easily implement the present utility model on the basis of understanding the present specification, and the contents shown in the drawings are part of the present specification.

[0041] The above is a further detailed description of the present utility model in combination with the specific embodiments, and cannot be deemed to limit the present utility model to these descriptions only. For the ordinary skilled person in the technical field to which the present utility model belongs, without departing from the concept of the present utility model, a number of simple deductions or substitutions can also be made, which should all be deemed to belong to the protection scope determined by the claims submitted by the present utility model.

Claims

1. A modular knife switch with a protective cover, characterized in that: The switch includes a switch base (1) and a modular protective cover (2). The protective cover (2) includes a first side cover (3) and a second side cover (4), and several middle covers (5) that can be modularly arranged between the first side cover (3) and the second side cover (4). The top of the switch base (1) is equipped with several moving contact seats (6) and stationary contact seats (7). The top of the moving contact seat (6) is rotatably provided with a knife switch assembly (8), and the top of the stationary contact seat (7) is provided with a knife switch clamp (9) that is connected to the knife switch assembly (8).

2. The modular knife switch with protective cover according to claim 1, characterized in that: The middle cover (5) and the side cover one (3) are both provided with a connecting plate one (10) on the bottom right side, and the middle cover (5) and the side cover two (4) are both provided with a connecting plate two (11) on the bottom left side.

3. A modular knife switch with a protective cover according to claim 1, characterized in that: The top surface of the switch base (1) is provided with several fixing holes (12), and the bottom of the middle cover (5) is provided with fixing posts (13). The fixing posts (13) are connected to the fixing holes (12) by screws.

4. A modular knife switch with a protective cover according to claim 2, characterized in that: The bottom side of the connecting plate 1 (10) is provided with a connecting block 1 (14), the bottom side of the connecting plate 2 (11) is provided with a connecting block 2 (15), the top of the connecting block 1 (14) is provided with a locking block (16), and the bottom of the connecting block 2 (15) is provided with a locking groove (17) to cooperate with the locking block (16). When the height of the connecting plate 1 (10) and the connecting plate 2 (11) is the same, the height of the connecting block 2 (15) is higher than that of the connecting block 1 (14).

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