Isolating switch

Abstract

The utility model discloses an isolating switch, which comprises a base and an isolating knife, the base is provided with a first insulating terminal and a second insulating terminal, the first insulating terminal is provided with the rotatable isolating knife, the second insulating terminal is provided with a conductive plate, the conductive plate is provided with a static contact, the isolating knife is provided with a protective cover, and the protective cover is provided with a protective cover. A plurality of equally-spaced division bars are arranged on the two sides in the protective cover from top to bottom, a clamping assembly is arranged in the protective cover, and the clamping assembly comprises a supporting frame, a movable contact frame and an elastic piece. According to the utility model, the protective cover protects the clamping assembly, prevents the clamping assembly from being eroded by rainwater and dust, prolongs the service life of the clamping assembly, and along with the consumption of the silver layer, the moving contact frame can enable the plurality of moving contacts to be adaptively clung to the static contacts through the elastic pieces according to the thickness sizes of different positions of the static contacts, thereby increasing the moving range of the moving contacts, and improving the working efficiency of the moving contacts. And the product has the advantages of prolonged service life and protection function.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of disconnecting switch especially relates to a disconnecting switch. BACKGROUND

[0002] The disconnecting switch is a kind of switch device mainly used for isolating power supply, switching operation, to connect and cut off small current circuit, without arc extinguishing function.

[0003] Silver plating process is used for the moving contact of disconnecting switch and the stationary contact for being contacted with moving contact, when disconnecting switch is opened and closed, to prevent from being caused by manufacturing tolerance variation, usually moving contact will be in interference fit with stationary contact, leading to silver layer of moving and stationary contact being damaged, accelerating consumption, and then reducing the service life of disconnecting switch, when silver layer is consumed to certain degree, moving contact cannot be contacted with stationary contact, leading to disconnecting switch being unable to conduct, and silver layer of moving and stationary contact still remains a part, cannot be fully utilized, therefore, the applicant has made beneficial design, found the method for solving the above problems, and the technical scheme to be introduced below is generated under this background. SUMMARY

[0004] The utility model discloses to overcome the deficiency of the design of the above-mentioned traditional disconnecting switch, provide a kind of product of improving service life, protection function.

[0005] To solve the above problems, the utility model adopts the following technical scheme.

[0006] A kind of disconnecting switch, including base, isolating knife, the base is equipped with first insulating terminal, second insulating terminal, the first insulating terminal is equipped with rotatable isolating knife, the second insulating terminal is equipped with conducting plate, the conducting plate is equipped with stationary contact, the isolating knife is equipped with protective cover, the both sides in the protective cover are equipped with a plurality of equidistant spacing baffle strips from top to bottom, the protective cover is equipped with clamping component, the clamping component includes support frame, movable contact frame, elastic piece, the four corners of two the support frame are equipped with shaft, a plurality of movable contact frame is sleeved in shaft, connecting rod is equipped between every two movable contact frame, the elastic piece is connected with the shaft of support frame two sides, so that the movable contact frame is abutted stationary contact.

[0007] Preferably, the isolating knife is provided with a conductive portion and is disposed within the protective cover.

[0008] Preferably, the base is provided with a rotating shaft, the rotating shaft is provided with a rotatable insulating column, and the other end of the insulating column is hingedly connected to the isolating knife.

[0009] Preferably, the moving contact frame is provided with moving contact heads on both sides, one of which abuts against the conductive part, and one of which abuts against the stationary contact head, the moving contact frame is provided with a limiting through hole, the shaft rod is slidingly arranged in the limiting through hole, and a gasket is arranged between adjacent moving contact frames.

[0010] Preferably, the stationary contact head is provided with inclined surfaces on both sides at the inlet.

[0011] Preferably, the support frame is provided with a giving-through hole.

[0012] Preferably, the elastic member is a tension spring.

[0013] Advantages:

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] (1) According to the thickness size of the stationary contact head at different positions, the moving contact frame can make the plurality of moving contact heads self-adaptively adhere to the stationary contact head through the elastic member, thereby increasing the moving range of the moving contact head, effectively reducing the contact resistance value of the moving contact head and the stationary contact head, overcoming the problems in the background art through the above design, and improving the service life of the product.

[0016] (2) The utility model can prolong the creeping distance of the arc generated when the moving contact head and the stationary contact head are separated through the partition strip, thereby improving the electrical performance of the product; the protective cover protects the clamping assembly, prevents it from being eroded by rain and dust, prolongs the service life, and has the advantage of having a protection function. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a sectional structure schematic view of the utility model;

[0018] Figure 2 It is a sectional structure schematic view of the utility model; Figure 1

[0019] Figure 3 It is an exploded structure schematic view of the utility model;

[0020] Figure 4 It is an exploded view of the utility model;

[0021] The correspondence between the annotations of the drawings and the component names in the drawings is as follows:

[0022] ​Reference signs: 1, base; 2, first insulating terminal; 3, second insulating terminal; 4, clamping assembly; 5, rotating shaft; 6, insulating column; 21, isolation knife; 22, protective cover; 23, conductive part; 221, partition strip; 31, conductive plate; 32, static contact; 33, inclined surface; 41, support frame; 42, moving contact frame; 43, elastic piece; 44, shaft rod; 45, connecting rod; 46, gasket; 411, let go of the through hole; 421, moving contact; 422, limiting through hole. DETAILED DESCRIPTION

[0023] The technical solutions of the utility model will be described below in conjunction 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 other embodiments obtained by the ordinary skilled in the art without making creative labor belong to the scope of protection of the utility model.

[0024] In the description of the utility model, it should be understood that the orientation or position relationship indicated by the terms such as "upper", "lower", "left", "right" in the description of the utility model is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the utility model.

[0025] In the embodiments of the utility model, "and / or" is only a description of the association relationship of the associated objects, which can represent three kinds of relationships, for example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this paper generally represents that the front and rear associated objects are a kind of "or" relationship.

[0026] Reference Example Figures 1 to 4The utility model provides an isolator, including base 1, base 1 is equipped with first insulating terminal 2, second insulating terminal 3, first insulating terminal 2 is equipped with rotatable isolation knife 21, second insulating terminal 3 is equipped with conducting plate 31, and conducting plate 31 is equipped with static contact 32, and isolation knife 21 is equipped with protective cover 22, and the both sides in protective cover 22 are equipped with a plurality of equal interval spacing baffle strips 221 from top to bottom, and protective cover 22 is equipped with clamping component 4, and clamping component 4 includes support frame 41, movable contact frame 42, elastic part 43, and four corners of two support frames 41 are equipped with shaft 44, and a plurality of movable contact frames 42 are sleeved on shaft 44, and connecting rod 45 is arranged between every two movable contact frames 42, and elastic part 43 is connected with the shaft 44 of both sides of support frame 41, and movable contact frame 42 is abutted to static contact 32, and the clamping component 4 is protected by protective cover 22, to prevent it from being eroded by rain, dust, to further prolong its service life, when the arc produced in the moment of separation of movable contact 421 and static contact 32, the creeping distance of arc is lengthened by baffle strip 221, to further improve the electrical performance of product, along with the consumption of silver layer, movable contact frame 42 can be according to the thickness size of different positions of static contact 32, make a plurality of movable contact 421 self-adaptingly adhere to static contact 32 through elastic part 43, to increase the movable range of movable contact 421, maximumly utilize the silver layer of movable and static contact 32, and effectively reduce the contact resistance value of movable contact 421 and static contact 32,

[0027] It is worth mentioning that the isolation knife 21 is provided with a conductive part 23 arranged in the protective cover 22, and the conductive part 23 serves to conduct current;

[0028] It is worth mentioning that the base 1 is provided with a rotating shaft 5, the rotating shaft 5 is provided with a rotatable insulating column 6, the other end of the insulating column 6 is hinged to the isolation knife 21, and the insulating column 6 prevents the current of the isolation knife 21 from being conducted to the rotating shaft 5, along with the rotation of the rotating shaft 5, the isolation knife 21 is driven to move upward with the first insulating terminal 2 as the axis through the insulating column 6;

[0029] It is worth mentioning that the movable contact frame 42 is provided with movable contacts 421 on both sides, one of the movable contacts 421 abuts against the conductive part 23, and the other movable contact 421 abuts against the static contact 32, the movable contact frame 42 is provided with a limiting through hole 422, the shaft 44 is slidingly arranged in the limiting through hole 422, a gasket 46 is arranged between adjacent movable contact frames 42, the limiting through hole 422 limits the movable range of the movable contact frame 42, the gasket 46 reduces the contact area of adjacent movable contact frames 42, thereby reducing the friction force between them, and improving the self-adaptive adjustment sensitivity of the movable contact frame 42;

[0030] It is worth mentioning that the two sides of the entrance of the static contact 32 are provided with inclined surfaces 33, the inclined surfaces 33 guide the movable contact 421 to gradually expand to the two sides of the support frame 41, the pitch of the elastic member 43 is elongated and is in an energy storage state, thereby reducing the friction force generated between the movable contact 421 and the static contact 32, and this is the technical scheme that distinguishes the product from the background art, that is, the movable contact 421 forcibly generates an excessive friction force with the static contact 32 through an interference fit;

[0031] It is worth mentioning that the support frame 41 is provided with a let-through hole 411, the let-through hole 411 is used for the static contact 32 to pass through, and also plays a role of avoiding the conductive plate 31, so that all the movable contacts 421 can abut against the static contact 32;

[0032] It is worth mentioning that the elastic member 43 is a tension spring, by replacing the tension springs with different elastic forces, the pressure of the movable contact 421 on the static contact 32 can be changed.

[0033] The above design scheme can make the product realize the advantages of improving the service life and the protection function.

[0034] The above content is a further detailed description of the utility model in combination with the specific embodiments, and cannot be determined that the specific embodiments of the utility model are limited to these descriptions, for the ordinary skilled in the art to which the utility model belongs, on the premise of not departing from the concept of the utility model, a number of simple deductions or substitutions can also be made, and all should be regarded as belonging to the protection range determined by the claims of the utility model submitted.

Claims

1. A disconnector comprising a base (1) provided with a first insulating terminal (2) provided with a rotatable isolating blade (21) and a second insulating terminal (3) provided with an electrically conductive plate (31) provided with a stationary contact (32), characterized in that: The isolation knife (21) is provided with a protective cover (22), two sides in the protective cover (22) are provided with a plurality of equidistant partitions (221) from top to bottom, a clamping assembly (4) is arranged in the protective cover (22), the clamping assembly (4) comprises a support frame (41), a movable contact frame (42) and an elastic member (43), shaft rods (44) are arranged at four corners of the two support frames (41), a plurality of movable contact frames (42) are sleeved on the shaft rods (44), a connecting rod (45) is arranged between every two movable contact frames (42), and the elastic member (43) is connected with the shaft rods (44) on two sides of the support frame (41), so that the movable contact frame (42) abuts against a stationary contact (32).

2. The disconnector according to claim 1, characterized in that: The isolation knife (21) is provided with a conductive part (23) and is arranged in the protective cover (22).

3. The disconnector according to claim 1, characterized in that: The base (1) is provided with a rotating shaft (5), the rotating shaft (5) is provided with a rotatable insulating column (6), and the other end of the insulating column (6) is hinged to the isolation knife (21).

4. The disconnector according to claim 1, characterized in that: Two sides of the movable contact frame (42) are provided with movable contact heads (421), one of the movable contact heads (421) abuts against the conductive part (23), one of the movable contact heads (421) abuts against the stationary contact (32), the movable contact frame (42) is provided with a limiting through hole (422), the shaft rod (44) is slidably arranged in the limiting through hole (422), and a gasket (46) is arranged between adjacent movable contact frames (42).

5. The disconnector according to claim 1, characterized in that: Two sides of an entrance of the stationary contact (32) are provided with inclined surfaces (33).

6. The disconnector according to claim 1, characterized in that: The support frame (41) is provided with a letting-through hole (411).

7. The disconnector according to any of claims 2 to 6, characterized in that: The elastic member (43) is a tension spring.

Images