Dual-power automatic change-over switch convenient to maintain

Abstract

The utility model discloses a dual power supply automatic change-over switch, which comprises a base and a protective cover arranged on the base and used for protection, the protective cover comprises a first cover body and a second cover body, the surface of the rear end of the first cover body is fixedly connected with a plurality of connecting plates, the surfaces of the connecting plates are provided with threaded holes, and the threaded holes are communicated with the first cover body and the second cover body. An inserting position is formed in one end, close to the first cover body, of the second cover body, a connecting hole is formed in the inserting position, a plurality of elastic buckles are fixedly connected to the bottom surfaces of the first cover body and the second cover body, and bayonets are formed in the positions, opposite to the elastic buckles, of the surface of the top of the base. In combination with the structural design, the protective cover is clamped and fixed on the base, dust is prevented from falling onto the switch body, meanwhile, the protective cover and the base are connected and fixed, follow-up maintenance, disassembly and assembly are facilitated, and the practicability is better.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of change-over switch, concretely to a double power automatic change-over switch convenient to maintain. BACKGROUND

[0002] The double power automatic change-over switch is a commonly used low-voltage electrical appliance, and is commonly used for conversion between two power sources to ensure that when one power source fails or stops power supply, the other power source can be switched rapidly to ensure normal power supply of the load circuit. Many industries and departments have very high requirements for the reliability of power supply, and in order to ensure the continuity of power supply, double power automatic change-over switches are used for power supply in many important occasions. As a necessary device for switching electric energy, the application demand of the double power automatic change-over switch is more and more extensive, and the technical performance requirement is also higher and higher.

[0003] At present, in order to cope with the poor environment and more dust in the mine and other environments, the manufacturers increase the protective cover for the double power automatic change-over switch to cope with the above-mentioned use environment. However, the installation and fixing mode structure of the existing protective cover is relatively complex, which greatly affects the maintenance work of the double power automatic change-over switch in the subsequent use process, and the practicality is poor. SUMMARY

[0004] The utility model aims at providing a double power automatic change-over switch convenient to maintain to solve the above-mentioned background art that the manufacturers at present increase the protective cover for the double power automatic change-over switch to cope with the poor environment and more dust in the mine and other environments to cope with the above-mentioned use environment. However, the installation and fixing mode structure of the existing protective cover is relatively complex, which greatly affects the maintenance work of the double power automatic change-over switch in the subsequent use process, and the practicality is poor.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a double power automatic change-over switch, including the base and the base is provided with the protective cover for the protection, the protective cover includes the first cover body and the second cover body, the first cover body rear end surface is fixedly connected with a plurality of connecting plates, the connecting plate surface is equipped with the threaded hole, the second cover body is close to the first cover body one end and is equipped with the connector position, the connector position is equipped with the connecting hole, the first cover body and the second cover body bottom surface are fixedly connected with a plurality of elastic buckles, the base top surface is located the elastic buckle opposite position and is equipped with the bayonet.

[0006] Preferably, the connecting plate is arranged opposite to the connector position, the connecting plate is movably connected in the connector position, and the connecting plate is matched with the connector position.

[0007] Preferably, the bayonet is provided with an elastic buckle, and the elastic buckle is matched with the buckle.

[0008] Preferably, the connecting hole and the threaded hole are connected through a fastener.

[0009] Preferably, the first cover body and the second cover body are provided with fixing positions around the outer wall surfaces, the fixing positions are provided with first fixing holes, and the base surface is provided with second fixing holes at positions opposite to the first fixing holes.

[0010] Preferably, the first fixing hole and the second fixing hole are connected through a fastener.

[0011] Preferably, the elastic buckle comprises an elastic connecting strip and a clamping block, the clamping block is fixedly connected to the bottom of the elastic connecting strip, and the top surface of the clamping block is in contact with the base surface.

[0012] Advantages

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] According to the structural design, the protective cover is clamped and fixed on the base, dust is prevented from falling on the switch body, the protective cover and the base are connected and fixed, subsequent maintenance and disassembly are facilitated, and the utility is better. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is an overall explosion structure schematic view of the utility model;

[0016] Fig. 2 It is an exploded structure schematic view of the protective cover of the utility model;

[0017] Fig. 3 It is an elastic buckle structure schematic view of the utility model.

[0018] 1. Base; 2. Protective cover; 3. Elastic buckle; 11. Bayonet; 12. Second fixing hole; 21. First cover body; 22. Second cover body; 31. Elastic connecting strip; 32. Clamping block; 211. Connecting plate; 212. Threaded hole;

[0019] 213. Fixing position; 214. First fixing hole; 221. Connector position; 222. Connecting hole. DETAILED DESCRIPTION

[0020] The technical solutions of the utility model will be clearly and completely described 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 labor belong to the protection scope of the utility model.

[0021] In the description of the utility model, it needs to be explained that the directions or position relations indicated by the terms "upper", "lower", "left", "right", "front", "rear", "inner", "outer", "vertical", "horizontal" and the like are the directions or position relations shown based on the drawings, and are only for the convenience of describing the present application and simplifying the description, and are not indicative or suggestive of the devices or elements indicated must have a specific direction, be constructed and operated in a specific direction, and therefore are not understood as limiting the utility model. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicative or suggestive of relative importance.

[0022] As Figs. 1-3 It is a structure schematic view of a dual power automatic transfer switch of a preferred embodiment of the utility model, in the embodiment, a dual power automatic transfer switch, including base 1, and base 1 is provided with protective cover 2 for protection, and protective cover 2 includes first cover body 21 and second cover body 22, a plurality of connecting plates 211 are fixedly connected to the rear end surface of first cover body 21, screw holes 212 are formed in the surface of connecting plate 211, and a plurality of connecting holes 222 are formed in the end of second cover body 22 close to first cover body 21, and a plurality of elastic buckles 3 are fixedly connected to the bottom surface of first cover body 21 and second cover body 22, and a clamping hole 11 is formed in the relative position of elastic buckle 3 on the top surface of base 1;Combined with the above structure design, the corresponding cover body can be disassembled according to the actual demand maintenance part, which is convenient for maintenance and also facilitates the disassembly of the corresponding cover body.

[0023] In the embodiment, the connecting plate 211 is arranged opposite to the connector site 221, the connecting plate 211 is movably connected in the connector site 221, and the connecting plate 211 is matched with the connector site 221, the structure is used for guiding and limiting the first cover body 21 during the connection between the first cover body 21 and the second cover body 22, so that better splicing effect is achieved.

[0024] In the embodiment, the elastic buckle 3 is clamped in the clamping hole 11, and the elastic buckle 3 is matched with the clamping hole 11, the structure design is used for fixing the protective cover 2 on the base 1, and when disassembling, the clamping block 32 in the elastic buckle 3 is only squeezed inward by two fingers, so that the clamping block 32 is not in contact with the surface of the base 1, and the protective cover 2 can be disassembled.

[0025] In the embodiment, the connecting hole 222 and the threaded hole 212 are connected by a fastener, which facilitates the disassembly and assembly of the first cover 21 and the second cover 22.

[0026] In the embodiment, the first cover 21 and the second cover 22 are provided with a fixing position 213 around the outer wall surface, and the fixing position 213 is provided with a first fixing hole 214, and the base 1 is provided with a second fixing hole 12 at a position opposite to the first fixing hole 214, and the first fixing hole 214 and the second fixing hole 12 are connected by a fastener, which strengthens the connection between the first cover 21, the second cover 22 and the base 1, and effectively protects the internal components of the switch.

[0027] In the embodiment, the elastic buckle 3 comprises an elastic connecting strip 31 and a clamping block 32, the clamping block 32 is fixedly connected to the bottom of the elastic connecting strip 31, and the top surface of the clamping block 32 is in contact with the surface of the base 1, so as to achieve the effect of mutual clamping.

[0028] The above is a further detailed description of the utility model in combination with the specific embodiments, and the utility model is not limited to the description. For ordinary skilled in the art to which the utility model belongs, without departing from the concept of the utility model, a number of simple deductions or substitutions can be made, which should be regarded as falling within the protection scope of the utility model.

Claims

1. A dual automatic transfer switch comprising a base (1) and a protective cover (2) provided on the base (1) for protection, characterized in that: The shield (2) includes a first cover (21) and a second cover (22), a plurality of connecting plates (211) are fixedly connected to the rear surface of the first cover (21), a threaded hole (212) is formed in the surface of the connecting plate (211), a connector position (221) is formed in one end of the second cover (22) close to the first cover (21), a connecting hole (222) is formed in the connector position (221), a plurality of elastic buckles (3) are fixedly connected to the bottom surface of the first cover (21) and the second cover (22), and a clamping hole (11) is formed in the top surface of the base (1) at a position opposite to the elastic buckle (3).

2. The dual automatic transfer switch of claim 1, wherein: The connecting plate (211) is arranged opposite to the connector position (221), the connecting plate (211) is movably connected in the connector position (221), and the connecting plate (211) is matched with the connector position (221).

3. The dual automatic transfer switch of claim 1, wherein: The elastic buckle (3) is clamped in the clamping hole (11), and the elastic buckle (3) is matched with the clamping hole (11).

4. The dual automatic transfer switch of claim 1, wherein: The connecting hole (222) and the threaded hole (212) are connected by a fastener.

5. The dual automatic transfer switch of claim 1, wherein: A fixing position (213) is formed around the outer wall surface of the first cover (21) and the second cover (22), a first fixing hole (214) is formed in the fixing position (213), and a second fixing hole (12) is formed in the surface of the base (1) at a position opposite to the first fixing hole (214).

6. The dual automatic transfer switch of claim 5, wherein: The first fixing hole (214) and the second fixing hole (12) are connected by a fastener.

7. The dual automatic transfer switch of claim 3, wherein: The elastic buckle (3) includes an elastic connecting strip (31) and a clamping block (32), the clamping block (32) is fixedly connected to the bottom of the elastic connecting strip (31), and the top surface of the clamping block (32) is in contact with the surface of the base (1).

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