Vacuum circuit breaker

Abstract

The utility model discloses a vacuum circuit breaker, which relates to the technical field of vacuum circuit breakers and comprises a connecting seat, and a circuit breaker is assembled on the top of the connecting seat. A placement groove is formed in the top of the bottom plate, and the connecting base is assembled in the placement groove in an inserted mode; and the pair of locking mechanisms are symmetrically arranged on the two sides of the bottom plate and used for locking the connecting seat, so that a worker can conveniently and flexibly disassemble the circuit breaker at a high position, and the threaded rod is protected in a wrapping manner, so that the situation that the threaded rod is rusted can be reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of vacuum circuit breaker, more particularly to a vacuum circuit breaker. BACKGROUND

[0002] The vacuum circuit breaker is a circuit breaker that extinguishes an electric arc in a vacuum. When the circuit is opened, an electric arc is generated by the high voltage, but the arc cannot exist in a vacuum, so the vacuum circuit breaker uses a fuse and an arc extinguishing device to eliminate the arc and effectively protect the power system.

[0003] The working principle of the vacuum circuit breaker is based on the arc extinguishing characteristics in a vacuum. When the moving and static contacts of the vacuum circuit breaker are opened under the action of the operating mechanism, an electric arc is generated between the contacts. The contact surface emits steam at high temperature, and a magnetic field is generated when the current passes through due to the special shape of the contact. The arc moves rapidly along the tangent direction of the contact surface under the action of the magnetic field. After some metal vapor condenses on the metal cylinder (shield), the arc is extinguished at the natural zero, and the dielectric strength between the contacts is quickly restored. For the assembly of the vacuum circuit breaker, the vacuum circuit breaker is usually hoisted to a high altitude and then connected with the support frame.

[0004] For example, the existing patent CN221427629U provides a vacuum circuit breaker convenient to install, which includes a bottom plate, a connecting seat is rotatably connected to the top end of the bottom plate, a circuit breaker is arranged at the top end of the connecting seat, a round sleeve is rotatably connected to the top end of the bottom plate, a slide rod is elastically connected to the inner wall of the bottom end of the round sleeve through a return spring, a clamping block is fixedly connected to the outer wall of the slide rod, a support frame is spliced to the bottom end of the bottom plate, a clamping groove is formed in the inner wall of the support frame, a rotating disc is fixedly connected to the bottom end of the connecting seat, a disc is elastically connected to the right end inner wall of the bottom plate through a movable spring, and a limiting tube is fixedly connected to the middle part of the disc and penetrates the disc. In the utility model, the entire circuit breaker can be quickly disassembled and assembled, the round sleeve and the slide rod are matched and slid to avoid the entry of rainwater into the round sleeve and affect the return spring, and the time for subsequent maintenance or replacement is reduced to a certain extent.

[0005] However, the device still has some deficiencies in use. The spring member used in the device is prone to rust and damage when it comes into contact with rainwater. The damaged spring member cannot guarantee the stability of the assembly of the circuit breaker. Based on the above problems, we provide a vacuum circuit breaker.

[0006] The above information disclosed in the background of the utility model is only used to increase the understanding of the background of the utility model, and therefore, it can include prior art known by those skilled in the art. CONTENT OF THE UTILITY MODEL

[0007] In order to solve the problems raised in the above background art, the utility model provides a vacuum circuit breaker.

[0008] The utility model provides a vacuum circuit breaker adopts following technical scheme:

[0009] A vacuum circuit breaker, including connecting seat, the top of connecting seat is equipped with circuit breaker, bottom plate, the top of bottom plate is equipped with and places the groove, connecting seat is inserted and is assembled in the placing groove, a pair of locking mechanism symmetry sets up at the both sides of bottom plate for locking connecting seat.

[0010] Preferably, the locking mechanism includes a frame body fixed to the side of the bottom plate, the inside of the frame body is slidably connected with a moving plate, a plurality of insertion rods are fixed to one side of the moving plate, and the side end of the insertion rod is arranged in the placing groove, the other side of the moving plate is rotatably connected with a threaded rod, and the threaded rod is arranged outside the frame body.

[0011] Preferably, the inside of the frame body is fixed with two spring telescopic rods, and the side surface of the moving plate is fixedly assembled with the telescopic ends of the two spring telescopic rods.

[0012] Preferably, the side surface of the frame body is fixedly connected with a protective sleeve relative to the position of the threaded rod, and the protective sleeve wraps the threaded rod, and the side end of the threaded rod is provided with a cross slot.

[0013] Preferably, the side end of the protective sleeve is rotatably connected with a shielding plate, and the shielding plate can completely cover the side end of the protective sleeve.

[0014] Preferably, a plurality of limiting holes are formed on the outer side surface of the connecting seat, and the limiting holes correspond to the positions of the insertion rods.

[0015] Preferably, a plurality of positioning columns are fixedly connected to the inner wall of the placing groove, and a plurality of positioning holes are formed on the bottom of the connecting seat, and the positioning columns can be inserted into the positioning holes.

[0016] Preferably, the outer side edges of the connecting seat are all rounded.

[0017] In summary, the utility model has the following beneficial technical effects:

[0018] In external first assembly base plate, then the connecting seat is inserted in the placement slot, then rotate two threaded rods in sequence, so that the threaded rod pushes the dynamic plate to move in the frame body, so that the plug rod on the dynamic plate is inserted into the limiting hole on the connecting seat, thereby completing the assembly of the connecting seat, finally rotate the shielding plate to shield the side end of the protection sleeve, and the same applies to disassembling the connecting seat, only need to open the shielding plate, then use the screwdriver to rotate the threaded rod in reverse direction, so that the dynamic plate moves to the frame body, the plug rod is separated from the limiting hole, then lift the connecting seat, complete the separation of the connecting seat and the placement slot, through the structure design, so that the staff can flexibly disassemble the circuit breaker at high place, and the threaded rod is wrapped, which can reduce the rust of the threaded rod.

[0019] The above summary is intended to illustrate only and is not intended to limit the application in any way. Further aspects, implementations, and features of the application will be apparent from the drawings and the following detailed description. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a structure schematic view of a vacuum circuit breaker in the embodiment of the utility model;

[0021] Figure 2 is a structure schematic view of the bottom of the connecting seat in the embodiment of the utility model;

[0022] Figure 3 is a structure schematic view of the inside of the base plate in the embodiment of the utility model;

[0023] Figure 4 is Figure 3 is an enlarged structure schematic view of A in the embodiment of the utility model.

[0024] BRIEF DESCRIPTION OF DRAWINGS 1, connecting seat; 2, circuit breaker; 3, base plate; 4, placement slot; 5, positioning hole; 6, locking mechanism; 600, frame; 601, dynamic plate; 602, plug rod; 603, threaded rod; 604, spring telescopic rod; 605, protection sleeve; 606, shielding plate; 7, limiting hole; 8, positioning column. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings Figures 1 to 4 The utility model is further explained in detail.

[0026] It should be noted that the drawings are schematic and not drawn to scale. For clarity and convenience in the drawings, the relative size and scale of the parts shown in the drawings are exaggerated or reduced in size for illustration, and any size is only exemplary and not limiting. In addition, the same reference signs are used for the same structures, elements or accessories appearing in two or more figures to represent similar features.

[0027] Embodiment one

[0028] The utility model discloses a kind of vacuum circuit breakers. Refer to Figures 1 to 4 A kind of vacuum circuit breaker, including connecting seat 1, the top of connecting seat 1 is equipped with circuit breaker 2 (outdoor pole vacuum circuit breaker);Bottom plate 3, the top of bottom plate 3 is equipped with placing groove 4, connecting seat 1 is inserted and assembled in placing groove 4;A pair of locking mechanism 6, symmetrically set at the two sides of bottom plate 3, for locking connecting seat 1.

[0029] Specifically, locking mechanism 6 includes frame body 600 fixed on the side of bottom plate 3, slidingly connected with moving plate 601 inside frame body 600, a plurality of insertion rods 602 are fixed on one side of moving plate 601, and the side end of insertion rod 602 is arranged in placing groove 4, and the other side of moving plate 601 is rotatably connected with threaded rod 603, and threaded rod 603 is arranged outside frame body 600.

[0030] Specifically, two spring telescopic rods 604 are fixedly connected inside frame body 600, and the side surface of moving plate 601 is fixedly assembled with the telescopic end of the two spring telescopic rods 604.

[0031] Specifically, the side of frame body 600 is fixedly connected with protective sleeve 605 relative to the position of threaded rod 603, and protective sleeve 605 wraps threaded rod 603, and a cross slot is formed in the side end of threaded rod 603.

[0032] Specifically, the side end of protective sleeve 605 is rotatably connected with shielding plate 606, and shielding plate 606 can completely cover the side end port of protective sleeve 605.

[0033] Specifically, a plurality of limiting holes 7 are formed in the outer side surface of connecting seat 1, and the limiting holes 7 correspond to the positions of insertion rods 602.

[0034] First, assemble bottom plate 3 outside, then insert connecting seat 1 into placing groove 4, then rotate two threaded rods 603 in sequence, so that threaded rod 603 pushes moving plate 601 to move in frame body 600, so that insertion rod 602 on moving plate 601 is inserted into limiting hole 7 on connecting seat 1, thereby completing the assembly of connecting seat 1, and finally rotating shielding plate 606 to shield and cover the side end port of protective sleeve 605, and similarly when disassembling connecting seat 1, only need to open shielding plate 606, and then use screwdriver to rotate threaded rod 603 in reverse direction, so that moving plate 601 moves into frame body 600, and each insertion rod 602 is separated from limiting hole 7, then lift connecting seat 1, complete the separation of connecting seat 1 and placing groove 4, through the structure design, so that the staff can flexibly disassemble circuit breaker 2 at high place, and the threaded rod 603 is wrapped and protected, which can reduce the rusting of threaded rod 603.

[0035] Embodiment two

[0036] This embodiment is further optimized on the basis of the above-mentioned embodiment, and the same parts as the foregoing technical solutions will not be described here again, such as Figure 2 With Figure 3 As shown in the figure, further, in order to better achieve the utility model, in particular, the following setting mode is adopted: in this embodiment, the inner wall of the placing groove 4 is fixedly connected with a plurality of positioning columns 8, a plurality of positioning holes 5 are arranged on the bottom of the connecting seat 1, the positioning column 8 can be inserted into the positioning hole 5, and the outer side edges of the connecting seat 1 are all treated with reverse fillets, so that the stability of the assembly of the connecting seat 1 and the bottom plate 3 can be improved by arranging the positioning hole 5 and the positioning column 8.

[0037] The standard parts used in the utility model can be purchased from the market, the special-shaped parts can be customized according to the description and the drawings, the specific connection mode of each part adopts the conventional means such as bolts, rivets and welding in the prior art, the machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, which will not be described in detail here.

[0038] In the description of the utility model, the terms "first", "second" are only used for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included one or more of the features. The meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0039] In the utility model, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0040] In the utility model, unless otherwise specifically defined and limited, the first feature "on" or "under" the second feature can be directly contacted by the first and second features, or indirectly contacted by the first and second features through an intermediate medium. Moreover, the first feature "above", "above" and "above" of the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" of the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0041] In the description of the present specification, the description referring to the terms "one embodiment", "some embodiments", "an example", "a specific example" or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. Furthermore, the person skilled in the art can combine and combine the different embodiments or examples described in the present specification and the features of the different embodiments or examples, without contradiction.

[0042] The present application discloses the drawings in the embodiment, only relate to the structure involved in the embodiment of the present application, other structures can refer to the usual design, in the case of no conflict, the same embodiment and different embodiments of the present application can be combined with each other.

[0043] Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacements to some of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A vacuum circuit breaker, characterized in that: include: A connecting base (1), wherein a circuit breaker (2) is mounted on the top of the connecting base (1); A bottom plate (3), wherein a placement groove (4) is provided on the top of the bottom plate (3), and the connecting seat (1) is plugged and assembled in the placement groove (4); A pair of locking mechanisms (6) are symmetrically arranged on both sides of the base plate (3) and are used to lock the connecting seat (1); The locking mechanism (6) comprises a frame (600) fixedly connected to the side of the base plate (3); a movable plate (601) is slidably connected inside the frame (600); a plurality of insertion rods (602) are fixedly connected to one side of the movable plate (601), and the side ends of the insertion rods (602) are arranged in the placement groove (4); a threaded rod (603) is rotatably connected to the other side of the movable plate (601), and the threaded rod (603) is arranged outside the frame (600); Two spring telescopic rods (604) are fixedly connected to the interior of the frame (600), and the side surfaces of the movable plate (601) are fixedly assembled with the telescopic ends of the two spring telescopic rods (604); A protective sleeve (605) is fixedly connected to the side of the frame (600) relative to the position of the threaded rod (603), and the protective sleeve (605) wraps the threaded rod (603). A cross groove is provided at the side end of the threaded rod (603); The side end of the protective sleeve (605) is rotatably connected to a shielding plate (606), and the shielding plate (606) can completely cover the side port of the protective sleeve (605).

2. A vacuum circuit breaker according to claim 1, characterized in that: The outer side surface of the connecting seat (1) is provided with a plurality of limiting holes (7), and the limiting holes (7) correspond to the positions of the insertion rods (602).

3. A vacuum circuit breaker according to claim 1, characterized in that: A plurality of positioning columns (8) are fixedly connected to the inner wall of the placement groove (4), and a plurality of positioning holes (5) are opened at the bottom of the connection seat (1), and the positioning columns (8) can be inserted into the positioning holes (5).

4. A vacuum circuit breaker according to claim 1, characterized in that: The outer edges of the connecting seat (1) are all rounded.

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