Fastening structure of isolating switch

Abstract

The utility model discloses a fastening structure of an isolating switch, which comprises at least two switch unit layers and an operation unit layer, and the switch unit layers are positioned below the operation unit layer and are sequentially laminated along a first direction; the operation unit layer comprises a mechanism shell; the switch unit layer comprises a switch shell; the device further comprises a rigid support and a base. The base is a switch shell of the tail layer switch unit layer or the base is arranged below the switch shell of the tail layer switch unit layer; the first end of the rigid support in the first direction and the mechanism shell are fastened through a first fastener, and the second end of the rigid support in the first direction is matched with the base in an inserted mode. A mounting channel is arranged on the switch shell between the base and the operation unit layer, and the rigid bracket is arranged in the mounting channel in a penetrating manner; the mounting channel is provided with an opening which is used for mounting the rigid bracket; the utility model has the characteristic that the rigid bracket is convenient to install.

Description

Technical Field

[0001] The utility model relates to a rotary disconnect switch, in particular to a fastening structure of a disconnect switch. Background Art

[0002] The conventional rotary disconnect switch has a laminated structure, and its switch unit layer and operation unit layer chamber are arranged and stacked in sequence along one direction. The switch unit layer of this rotary disconnect switch is often a multi-layer structure. However, as the number of poles of the switch unit layer increases continuously, it is difficult to ensure that all switch unit layers are relatively flat after being laminated. Therefore, those skilled in the art have also designed a structure with a rigid bracket added outside the switch unit layer and operation unit layer. However, in the existing rigid bracket, a dovetail groove is used for plugging with the housing of the switch unit layer. Therefore, the rigid bracket must be installed in advance, and then the switch unit layers are sequentially sleeved on the rigid bracket for assembly. Such an installation method has too much limitation and lacks flexibility. Summary of the Utility Model

[0003] In view of this, the purpose of the utility model is to overcome the deficiencies in the prior art and aims to provide a fastening structure of a disconnect switch, which has the effect of simplifying assembly.

[0004] The utility model provides: a fastening structure of a disconnect switch, which includes at least two layers of switch unit layers and an operation unit layer. The switch unit layers are arranged in sequence along a first direction below the operation unit layer; the operation unit layer includes a mechanism housing, and the switch unit layer includes a switch housing; wherein, it further includes a rigid bracket and a base; the base is the switch housing of the tail layer switch unit layer or the base is arranged below the switch housing of the tail layer switch unit layer; the first end of the rigid bracket in the first direction is fastened to the mechanism housing through a first fastener, and the second end of the rigid bracket in the first direction is in plug-in fit with the base; an installation channel is provided on the switch housing between the base and the operation unit layer, and the rigid bracket is arranged in the installation channel; the installation channel has an opening for the installation of the rigid bracket.

[0005] In some embodiments of the present application, the number of the installation channels is two, the number of the rigid brackets corresponds to the installation channels, and the two installation channels are respectively arranged on two opposite surfaces of the switch housing.

[0006] In some embodiments of the present application, a first boss and a second boss are provided on the switch housing. The first boss and the second boss are spaced apart, and all the spaces together form the installation channel. The mechanism housing is provided with a third boss corresponding to the first boss and a fourth boss corresponding to the second boss. The base is provided with a fifth boss corresponding to the first boss and a sixth boss corresponding to the second boss. A first fastening assembly and a second fastening assembly are further included. The first fastening assembly passes through the first boss, the third boss, and the fifth boss to fasten the mechanism housing, the switch housing, and the base together. The second fastening assembly passes through the second boss, the fourth boss, and the sixth boss to fasten the mechanism housing, the switch housing, and the base together.

[0007] In some embodiments of the present application, both the first fastening assembly and the second fastening assembly are bolts and nuts; or, both the first fastening assembly and the second fastening assembly are two screws and a fixing rod, and the screws are fastened at both ends of the fixing rod.

[0008] In some embodiments of the present application, the mechanism housing includes an upper cover and a base. The upper cover has an overhanging portion that extends beyond the base. The first end of the rigid bracket is a bent structure, and the bent structure abuts against the overhanging portion and is fastened by a first fastener.

[0009] In some embodiments of the present application, the overhanging portion includes four corner portions, and the number of the first fasteners is four, which are distributed at the four corner portions.

[0010] In some embodiments of the present application, the upper cover and the base are fastened together by a second fastener, and the number of the second fasteners is not less than four.

[0011] In some embodiments of the present application, a slot or a jack is provided on the base, and the second end of the rigid bracket is inserted into the slot or the jack.

[0012] In some embodiments of the present application, the second end of the rigid bracket is bent away from the direction where the opening is located to form a bent portion, and the bent portion is inserted into the slot or the jack.

[0013] In some embodiments of the present application, the portion of the rigid bracket located in the installation channel includes a first part, a second part, and a third part. The first part is connected to the third part through the second part. The first part is close to or abuts against one channel wall of the installation channel, the third part is close to or abuts against the other channel wall of the installation channel, and the second part is close to the opening of the installation channel.

[0014] In some embodiments of the present application, a strengthening structure is provided on the rigid bracket, and the strengthening structure is a convex hull or a depression formed by stamping a part of the rigid bracket.

[0015] The beneficial effects of the present application compared with the prior art:

[0016] Since one end of the rigid bracket is inserted into the base and the other end is fastened to the mechanism housing, and the opening is for the installation of the rigid bracket, the assembly method of the rigid bracket is more diverse. For example, after all the switch unit layers are stacked, the installation can be carried out, without the need to adopt the only assembly method as in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can also be obtained based on these drawings without creative efforts.

[0018] Figure 1 Shows a schematic diagram of the disconnecting switch according to an embodiment of the present invention;

[0019] Figure 2 Shows a schematic diagram of the rigid bracket according to an embodiment of the present invention;

[0020] Figure 3 Shows a perspective view of the base according to an embodiment of the present invention;

[0021] Figure 4 Shows a perspective view of the switch housing according to an embodiment of the present invention;

[0022] Figure 5 Shows a schematic diagram of the base according to an embodiment of the present invention;

[0023] Figure 6 Shows a schematic diagram of an embodiment of the first and second fastening components according to an embodiment of the present invention;

[0024] Figure 7 Shows a schematic diagram of another embodiment of the first and second fastening components according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present invention and should not be construed as limiting the present invention.

[0026] In the description of the present utility model, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationships shown in the drawings. These are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0027] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality of" means two or more, unless otherwise specifically defined.

[0028] In the present utility model, unless otherwise clearly specified and limited, the terms such as "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0029] In the present utility model, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "below", "beneath" and "under" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature. Embodiment

[0030] As Figure 1-7 shown, an embodiment of the present utility model is a rotary disconnect switch. This rotary disconnect switch includes an operating unit layer K1 and a switch unit layer K2. An operating mechanism is provided in the operating unit layer K1, and a moving contact disc and a static contact are provided in the switch unit layer K2. The rotation of the moving contact disc can be realized through the operating mechanism, so as to realize the connection and disconnection of the switch unit layer K2.

[0031] The switch unit layer K2 is located below the operation unit layer K1, and all the switch unit layers K2 are stacked in sequence along the first direction.

[0032] Here, the operation unit layer K1 includes a mechanism housing 100. The mechanism housing 100 includes an upper cover 101 and a base 102. The upper cover 101 is located above the base 102. Both ends of the upper cover 101 extend beyond the base 102 to form an overhanging part 1010. The overhanging part 1010 at least includes four corner parts of the upper cover 101. Here, the upper cover 101 and the base 102 are fastened by a second fastener 103. The second fastener 103 is a screw, and the number is six. Of course, other numbers of screws can also be used as long as at least four are satisfied. At the same time, other fasteners can also be used in addition to screws, such as rivets.

[0033] The switch unit layer K2 contains related devices such as moving and static contacts inside, and can realize breaking and closing. Here, the switch unit layer K2 includes a switch housing 200. The multi-layer switch housing 200 is specifically arranged as follows: The first-layer switch housing 200 is connected to the base 102, and the next-layer switch housing 200 is connected to the upper-layer switch housing 200.

[0034] The base 300 is the switch housing 200 of the last switch unit layer K2 in this embodiment. Of course, in addition, the base 300 may not be the switch housing 200, but a separate layer of housing without moving and static contacts arranged inside.

[0035] One end of the rigid bracket 400 is fixed to the mechanism housing 100, and the other end is inserted into the base 300. Specifically, an installation channel 210 is opened on the switch housing 200. The installation channel 210 is opened on the side of the switch housing 200. Here, the installation channel 210 has an opening 210a, and the size of the opening 210a is adapted to the size of the rigid bracket 400. If the rigid bracket 400 is not fixed to the mechanism housing 100, the rigid bracket 400 can be removed through the opening 210a (equivalent to removing from the side of all the switch unit layers K2). Conversely, when installing, the rigid bracket 400 can also be inserted through the opening 210a.

[0036] One end of the rigid bracket 400 fixed to the mechanism housing 100 is the first end 401. Here, the first end 401 is a bending structure (such as an angle iron). The bending structure abuts on the overhanging part 1010 of the upper cover 101, and then is fastened by a first fastener 104. The first fastener 104 is a screw, and the number of fastenings of the first fastener 104 is four, which are respectively arranged at positions corresponding to the four corner parts of the four upper covers 101. At the same time, other fasteners can also be used in addition to screws, such as rivets.

[0037] The switch housing 200 is provided with a first boss 201 and a second boss 202, and the first boss 201 and the second boss 202 are arranged at intervals; since the switch housing 200 is arranged in a stacked manner, these intervals together form an installation channel 210. Of course, the switch housing 200 here refers to the switch housing 200 located between the base 300 and the mechanism housing. The structure on the base 300 (the switch housing 200 of the last switch unit layer K2) will be introduced later.

[0038] A third boss 110 and a fourth boss 120 are arranged at the corresponding positions of the base 102. Here, the third boss 110 corresponds to the first boss 201, and the fourth boss 120 corresponds to the second boss 202.

[0039] A fifth boss 310 and a sixth boss 320 are arranged at the corresponding positions of the base 300. Here, the fifth boss 310 corresponds to the first boss 201, and the sixth boss 320 corresponds to the second boss 202.

[0040] The purpose of arranging the first boss 201, the second boss 202, the third boss 110, the fourth boss 120, the fifth boss 310, and the sixth boss 320 here is not only to install the rigid bracket 400, but also to fasten all the switch housings 200 to the mechanism housing 100. The specific fastening method is to fasten them with the first fastening component and the first fastening component. Here, the first fastening component is passed through the first boss 201, the third boss 110, and the fifth boss 310, and the second fastening component is passed through the second boss 202, the fourth boss 120, and the sixth boss 320.

[0041] There are many ways of the first fastening component and the first fastening component here.

[0042] As one way, as Figure 6 shown, both the first fastening component and the second fastening component are bolts 501 and nuts 502. Here, the nut 502 can be placed on the fifth boss 310 and the sixth boss 320 of the base 300, or can be placed on the third boss 110 and the fourth boss 120 of the base 102.

[0043] As another way, as Figure 7 shown, both the first fastening component and the second fastening component are two screws 503 and a fixing rod 504. Screw holes are opened at both ends of the fixing rod 504, and the screws 503 are fastened to both ends of the fixing rod 504.

[0044] The base 300 is provided with a jack 301, and the second end of the rigid bracket 400 is inserted into the jack 301. The jack 301 is specifically arranged as follows. A connecting boss 330 is connected between the fifth boss 310 and the sixth boss 320, and the jack 301 is only provided on the connecting boss 330. In addition to using the jack 301, a slot can also be used.

[0045] In order to make the insertion more stable, the second end of the rigid bracket 400 is bent away from the direction where the opening 210a is located to form a bent portion, and the bent portion 402 is inserted into the jack 301.

[0046] Here, the cross-sectional shape of the middle part of the rigid bracket 400 is generally U-shaped. The middle part here can be understood as the part located in the installation channel 210. The middle part includes a first part 410, a second part 420, and a third part 430. The first part 410 is connected to the third part 430 through the second part 420. The first part 410 is close to or abuts against one channel wall of the installation channel 210, the third part 430 is close to or abuts against the other channel wall of the installation channel 210, and the second part 420 is close to the opening 210a of the installation channel 210.

[0047] The rigid bracket 400 is also provided with a reinforcing rib 440, which is formed by stamping to generate partial convex hulls or depressions on the rigid bracket 400. The convex hull here can be understood as protruding from one side of the switch housing 200 in a direction away from that side, and the depression can be understood as being recessed towards one side of the switch housing 200. The material used for the rigid bracket 400 is stainless steel. Of course, in addition, it can also be an iron bracket, etc., as long as the strength is greater than that of the switch housing 200.

[0048] Although the installation structure of a rigid bracket 400 is exemplified above, there are two rigid brackets 400 in this embodiment, and the corresponding installation structures of the rigid brackets 400 are also two, which will not be elaborated here one by one.

[0049] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" 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 invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0050] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A fastening structure for a disconnector, which comprises at least two layers of switch unit layers and an operating unit layer. The switch unit layers are stacked in sequence along a first direction below the operating unit layer; the operating unit layer includes a mechanism housing, and the switch unit layer includes a switch housing; characterized in that: It further includes a rigid bracket and a base; the base is the switch housing of the tail layer switch unit layer or the base is disposed below the switch housing of the tail layer switch unit layer; the first end of the rigid bracket in the first direction is fastened to the mechanism housing by a first fastener, and the second end of the rigid bracket in the first direction is in plug-in fit with the base; an installation channel is provided on the switch housing between the base and the operation unit layer, and the rigid bracket is disposed through the installation channel; The installation channel has an opening for the installation of the rigid bracket.

2. The fastening structure of a disconnecting switch according to claim 1, characterized in that: The number of the installation channels is two, and the number of the rigid brackets corresponds to the installation channels. The two installation channels are respectively disposed on two opposite surfaces of the switch housing.

3. The fastening structure of a disconnecting switch according to claim 1 or 2, characterized in that: The switch housing is provided with a first boss and a second boss, and the first boss and the second boss are spaced apart. All the intervals together form the installation channel; the mechanism housing is provided with a third boss corresponding to the first boss and a fourth boss corresponding to the second boss; the base is provided with a fifth boss corresponding to the first boss and a sixth boss corresponding to the second boss; it further includes a first fastening assembly and a second fastening assembly. The first fastening assembly is disposed through the first boss, the third boss, and the fifth boss to fasten the mechanism housing, the switch housing, and the base together, and the second fastening assembly is disposed through the second boss, the fourth boss, and the sixth boss to fasten the mechanism housing, the switch housing, and the base together.

4. The fastening structure of a disconnecting switch according to claim 3, characterized in that: Both the first fastening assembly and the second fastening assembly are bolts and nuts; or, both the first fastening assembly and the second fastening assembly are two screws and a fixing rod, and the screws are fastened at both ends of the fixing rod.

5. The fastening structure of a disconnecting switch according to claim 1, characterized in that: The mechanism housing includes an upper cover and a base, the upper cover has an overhanging portion exceeding the base, the first end of the rigid bracket is a bent structure, and the bent structure abuts against the overhanging portion and is fastened by a first fastener.

6. The fastening structure of a disconnector according to claim 5, characterized in that: The overhanging portion includes four corner portions, and the number of the first fasteners is four, which are distributed at the four corner portions; And / or, the upper cover and the base are fastened by a second fastener, and the number of the second fasteners is not less than four.

7. The fastening structure of a disconnector according to claim 1, wherein: The base is provided with a slot or a jack, and the second end of the rigid bracket is inserted into the slot or the jack.

8. The fastening structure of a disconnecting switch according to claim 7, characterized in that: The second end of the rigid bracket is bent away from the direction where the opening is located to form a bent portion, and the bent portion is inserted into the slot or the jack.

9. The fastening structure of an isolating switch according to claim 1, characterized in that: The portion of the rigid bracket in the installation channel includes a first portion, a second portion, and a third portion. The first portion is connected to the third portion through the second portion; the first portion is close to or abuts against one channel wall of the installation channel, the third portion is close to or abuts against the other channel wall of the installation channel, and the second portion is close to the opening of the installation channel.

10. The fastening structure of a disconnecting switch according to claim 1, characterized in that: The rigid bracket is provided with a strengthening structure, and the strengthening structure is a convex or concave formed by stamping a part of the rigid bracket.

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