Universal manual maintenance switch

Abstract

The utility model provides a manual maintenance switch with universality. The manual maintenance switch comprises a socket assembly and a plug assembly. The socket assembly comprises a lower shell and jacks; the plug assembly comprises an upper shell, a pin, an upper insulator and a guide connecting piece; the upper insulator is arranged at the end part of the upper shell; the two contact pins are arranged on the upper insulator; the contact pin comprises a plugging part and a connecting part which are fixed together; the connecting part comprises a transverse extending sheet and a fixing sheet; the transverse extending sheet is connected with the end part of the inserting part; and two ends of the guide connecting piece are respectively fixed and conducted with the fixing sheets of the two contact pins. According to the utility model, fuse protectors with different specifications and sizes can be matched by replacing the contact pins and the neck bushes with different specifications, and other structures can be universal for fuse protectors with different specifications. According to the utility model, a plurality of structural forms such as machining, copper pipe punching, metal sheet punching or bending and the like are provided, and rapid matching can be realized according to actual use conditions and requirements.

Description

TECHNICAL FIELD

[0001] The utility model belongs to switch device, and specifically relates to a manual maintenance switch with universality. BACKGROUND

[0002] In the field of electrical equipment maintenance and related circuit system operation, the manual maintenance switch plays a vital role. With the continuous development of the electrical industry and the increasing diversification of various power consumption scenarios, higher and higher requirements are put forward for the universality, flexibility and cost control of the manual maintenance switch.

[0003] The traditional manual maintenance switch is often designed for specific specifications of fuses or copper bars, and its structure and components are relatively fixed, lacking universality. For example, when different specifications and sizes of fuses or other connecting components need to be adapted, different models of manually maintenance switches are usually used to meet the needs, which leads to the need to stock a large number of different models of manually maintenance switches in order to cope with a variety of different specifications of fuses in actual application, increasing the complexity and cost of inventory management, and the utilization rate of materials is low, and after the replacement or upgrade of the fuse, it cannot be used continuously, shortening its life cycle. SUMMARY

[0004] The utility model aims at providing a manual maintenance switch with universality.

[0005] The utility model provides a manual maintenance switch with universality, which comprises a socket assembly and a plug assembly, the socket assembly comprises a lower shell and a jack, two jacks are installed on the lower shell at intervals, the plug assembly comprises an upper shell, a pin, an upper insulator and a connecting component, the upper insulator is installed on the end of the upper shell, two pins are installed on the upper insulator, the pin comprises a plug-in part and a connecting part fixed together, the plug-in part of the two pins is matched with the two jacks, the connecting part comprises a transversely extending piece and a fixed piece, the transversely extending piece is connected with the end of the plug-in part, and the two ends of the connecting component are fixed and conductive with the fixed pieces of the two pins respectively.

[0006] As a preferred, the fixed piece is provided with a mounting hole, and the two ends of the connecting component are fixed with the mounting holes on the two pins through bolts.

[0007] As a preferred, the manual maintenance switch is adapted to a variety of different specifications of connecting components, the connecting component is a fuse or a metal connecting structure, the connecting components of different specifications correspond to pins of different sizes, and the distance between the fixed pieces on the two pins is matched with the length of the connecting component.

[0008] As preferred, the plug assembly further comprises an inner bushing; the inner bushing is arranged between the guide link and the inner cavity of the upper shell; a plurality of ribs are arranged on the inner side wall of the upper shell; the inner bushing is provided with groove structures corresponding to the positions of the ribs; each rib is embedded in the corresponding groove structure of the inner bushing; the groove structures on the outer side of the inner bushing abut against the guide link inwardly.

[0009] As preferred, the guide links of different specifications correspond to inner bushings of different sizes; the width of the inner bushing embedded therein matches the width of the guide link.

[0010] As preferred, the pin is a metal stepped shaft cut-forming structure, or a metal tube radial stamping forming structure, or a sheet-shaped bending forming structure.

[0011] As preferred, the plug assembly further comprises a sealing ring arranged between the socket assembly and the plug assembly.

[0012] As preferred, the plug assembly further comprises a handle; the handle is rotationally connected with the outer side wall of the upper shell; the outer side wall of the lower shell is provided with plug-in push shafts; the handle is provided with a sliding groove; the plug-in push shafts of the lower shell extend into the sliding groove; the sliding groove gradually moves away from the rotation center of the handle from one end to the other end.

[0013] As preferred, the outer side wall of the upper shell is provided with two pin shafts on both sides; the outer side wall of the lower shell is provided with two plug-in push shafts on both sides; the handle is U-shaped, comprising an integrally formed gripping portion and two separate pieces arranged on both sides of the upper shell; the two separate pieces are rotationally connected with the pin shafts on both sides of the upper shell; the two separate pieces are provided with sliding grooves; the sliding grooves on the two separate pieces correspond to the plug-in push shafts on both sides of the lower shell.

[0014] As preferred, the sliding groove is arc-shaped.

[0015] The utility model has the beneficial effects that:

[0016] 1. Improve the versatility and use value of the product: the utility model can match different specifications and sizes of fuses by replacing different specifications of pins and inner bushings; other structures including the shell, the insulator and the jack can be used for different specifications of fuses; the application range of the product is wider; the use value of the product is increased; and the utilization rate and the life cycle of materials are improved.

[0017] 2. Reduce the number of molds and production costs: the utility model only needs to develop different specifications of pins and inner bushings within the size range of the shell to meet the use requirements of different specifications of fuses; the number of molds for multiple specifications of manual maintenance switches is greatly reduced; and the production cost and production cycle are reduced.

[0018] 3、 Increase application scenarios: the utility model discloses can replace fuse and copper bar, manual maintenance switch can have two functions of with fusing and without fusing, increase the application scene of product. And, the utility model provides the structure form of the needle of machining, copper pipe punching, metal sheet stamping or bending, can be matched according to actual use condition and requirement quickly;The bending structure of the tail of the needle, the needle and fuse fixed time is more stable and reliable. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the explosion schematic view of installing fuse for the utility model embodiment 1.

[0020] Figure 2 It is the section schematic view of the utility model embodiment 1.

[0021] Figure 3 It is the structure schematic view of the needle in the utility model embodiment 1.

[0022] Figure 4 It is the structure schematic view of the inner bushing in the utility model embodiment 1.

[0023] Figure 5 It is the explosion schematic view of installing copper bar for the utility model embodiment 1.

[0024] Figure 6 It is the structure schematic view of the needle in the utility model embodiment 2.

[0025] Figure 7 It is the structure schematic view of the needle in the utility model embodiment 3.

[0026] Reference signs: 1, handle;1-1, sliding groove;2, upper shell;2-1, convex rib;3, fuse;4, needle;4-1, plug-in part;4-2, transverse extension piece;4-3, fixed sheet;4-4, mounting hole;5, upper insulator;6, sealing ring;7, lower shell;7-1, plug-in and plug-out push shaft;8, jack;9, inner bushing;9-1, recess structure;10, copper bar. DETAILED DESCRIPTION

[0027] The utility model is further described below in connection with the drawings.

[0028] Embodiment 1

[0029] As shown in Figure 1 And Figure 2 , a kind of versatility manual maintenance switch, including socket assembly, plug assembly, handle 1 and sealing ring 6.The socket assembly includes lower shell 7 and jack 8.Two jacks 8 are installed in two first connecting holes of lower shell 7 parallelly.In some embodiments, two jacks 8 are fixed with lower shell 7 by tooth cover or clasp.

[0030] The plug assembly includes an upper housing 2, pins 4, an upper insulator 5, an inner sleeve 9, and connecting members. The four corners of the upper insulator 5 are fixed to the four corners of the end face of the upper housing 2 by bolts. Two second connecting holes are provided side by side on the upper insulator 5.

[0031] like Figure 3 As shown, the pins 4 include a plug portion 4-1 and a connecting portion fixed together. The shape of the plug portion 4-1 matches the shape of the socket 8. The plug portions 4-1 of the two pins 4 pass through the two second connecting holes on the insulator 5 and are fixed. The two pins 4 correspond to the two sockets 8 respectively. The connecting portion has an L-shaped sheet structure, including an integrally formed transverse extension piece 4-2 and a fixing piece 4-3. The transverse extension piece 4-2 is fixed to the end of the plug portion 4-1. The fixing piece 4-3 has a mounting hole 4-4. A connecting member is disposed between the fixing pieces 4-3 of the two pins 4. The threaded holes at both ends of the connecting member are fixed to the mounting holes 4-4 on the fixing pieces 4-3 of the two pins 4 by bolts.

[0032] Two pins are fixedly installed on both sides of the outer wall of the upper housing 2. Two push-pull shafts 7-1 are fixedly installed on both sides of the outer wall of the lower housing 7. The axes of the two push-pull shafts 7-1 coincide. The handle 1 is U-shaped and includes an integrally formed grip and two separate pieces respectively provided on both sides of the upper housing 2. The two ends of the grip are connected to the same end of the two separate pieces.

[0033] Two separating plates are provided with rotating holes whose axes coincide. The two separating plates are rotatably connected to the pins on both sides of the upper housing 2. Each separating plate is provided with a sliding groove 1-1; the sliding groove 1-1 is arc-shaped; the insertion and removal push shafts 7-1 on both sides of the lower housing 7 extend into the sliding grooves 1-1 on the two separating plates respectively. The sliding grooves 1-1 gradually move away from the rotating holes from one end to the other.

[0034] When the push shaft 7-1 is at the end of the slide groove 1-1 closest to the pin, the plug assembly is at the lower limit position and the pin 4 is inserted into the corresponding socket 8; when the push shaft 7-1 is at the end of the slide groove 1-1 furthest from the pin, the plug assembly is at the upper limit position and the pin 4 is separated from the corresponding socket 8.

[0035] By rotating the handle 1, the slide groove 1-1 and the insertion / removal push shaft 7-1 can slide relative to each other, thereby increasing or decreasing the distance between the insertion / removal push shaft 7-1 on the lower housing 7 and the pin on the upper housing 2. This causes the lower housing 7 and the upper housing 2 to move away from each other, thus enabling the pin 4 to be pulled out of the socket 8, or the lower housing 7 and the upper housing 2 to move closer to each other, thus enabling the pin 4 to be inserted into the socket 8.

[0036] The inner sleeve 1 is arranged on the guide connecting piece and located in the inner cavity of the upper shell 2; the distance between the two opposite outer sides of the inner sleeve 1 matches the width of the inner cavity of the upper shell 2. The two opposite inner side walls of the upper shell 2 are each provided with a plurality of convex ribs 2-1 arranged in sequence at intervals. One side of the inner sleeve 1 is open and the two ends are provided with clearance grooves to avoid the bolts at the two ends of the guide connecting piece. The two opposite outer sides of the inner sleeve 1 are provided with groove structures 9-1 corresponding to the positions of the convex ribs 2-1. The convex ribs 2-1 on the inner side walls of the upper shell 2 are respectively embedded in the groove structures 9-1 of the inner sleeve 1, so that the inner sleeve 1 is stably installed in the upper shell 2.

[0037] As shown in Figure 4 , the inner sleeve 9 is a thin shell structure; the groove structure 9-1 on the outer side of the inner sleeve 1 makes the inner side of the inner sleeve 1 protrude inward. The depth of the groove structure 9-1 on the inner sleeve 1 matches the width of the guide connecting piece, so that the two side surfaces of the guide connecting piece respectively contact the groove structures 9-1 on the two inner side walls of the inner sleeve 1, thereby stably connecting the guide connecting piece with the inner cavity of the upper shell 2 through the inner sleeve 1, improving the stability of the guide connecting piece in harsh environments such as vibration, and avoiding the connection between the guide connecting piece and the pin 4 from being damaged. In this embodiment, the inner sleeve 9 is used to fill the gap between the fuse and the upper shell, and plays a supporting, limiting and fixing role

[0038] As shown in Figure 1 and Figure 5 , the guide connecting piece is a fuse 3 or a copper bar 10. Generally, the guide connecting piece adopts the fuse 3 to facilitate the realization of overcurrent protection; if the fuse is not required in the use scene, the fuse 3 is replaced by a U-shaped copper bar 10, which is fixed by bolts and nuts, so as to meet the use requirements and obtain a manual maintenance switch without a fuse.

[0039] In this embodiment, different specifications of fuses 3 can be installed in the upper shell 2. The length and width of fuses 3 of different specifications are different; each specification of fuse 3 corresponds to a type of pin 4 and inner sleeve 1. Different types of pins 4 differ in the length of the transversely extending piece 4-2, so that the distance between the two pin 4 fixing pieces 4-3 is different, so as to correspond to the guide connecting piece between the two pins 4 of the corresponding specification, and to accommodate the length difference of guide connecting pieces of different specifications; different types of inner sleeves 1 differ in the depth of the groove structure 9-1, so that the inner side of the inner sleeve 1 can be in close contact with the guide connecting piece of the corresponding specification, and to accommodate the width difference of guide connecting pieces of different specifications. Based on this, the manual maintenance switch provided in this embodiment only needs to replace the inner sleeve 1 and the two pins 4 to adapt to fuses 3 of different specifications, greatly improving the compatibility of the manual maintenance switch, so as to meet the different use requirements of users, product modularization and generalization, good versatility and flexibility, high practicability and economy.

[0040] The sealing ring 6 is arranged at the joint of the upper insulator 5 and the lower shell 7, and forms a radial seal between the socket assembly and the plug assembly.

[0041] In the embodiment, the pin 4 is formed by milling a stepped shaft structure to form the transversely extending piece 4-2 and the fixing piece 4-3. The plug-in part 4-1 of the pin 4 is in a cylindrical shape.

[0042] The working principle of the utility model is as follows:

[0043] The handle 1 is turned down, so that the two pins 4 are respectively inserted into the two insertion holes 8, and the electrical connection between the two insertion holes 8 is realized; when it is needed to disconnect the circuit, the handle 1 is turned up; the sliding groove 1-1 on the handle 1 pulls the entire plug assembly to be raised, so that the two pins 4 are separated from the insertion holes 8, and the two insertion holes 8 are disconnected.

[0044] Embodiment 2

[0045] As shown in Figure 6 A universal manual maintenance switch, the difference between the embodiment and embodiment 1 is that the structure of the pin 4 is different; in the embodiment, a metal tubular structure is formed along the radial direction by punching. The plug-in part 4-1 of the pin 4 is in a round pipe shape.

[0046] Embodiment 3

[0047] As shown in Figure 7 A universal manual maintenance switch, the difference between the embodiment and embodiment 1 is that the structure of the pin 4 is different; in the embodiment, a long strip-shaped metal plate is formed by punching or sheet metal. The plug-in part 4-1 of the pin 4 is in a sheet shape.

Claims

1. A universal manual maintenance switch, comprising a socket assembly and a plug assembly; the socket assembly comprises a lower housing (7) and a socket (8); two sockets (8) are spaced apart on the lower housing (7); the plug assembly comprises an upper housing (2), a pin (4), an upper insulator (5) and a guide link; the upper insulator (5) is installed at the end of the upper housing (2); two pins (4) are installed on the upper insulator (5); characterized in that: The pin (4) comprises a plug part (4-1) and a connecting part fixed together; the plug parts (4-1) of the two pins (4) are matched with the two sockets (8); the connecting part comprises a transversely extending piece (4-2) and a fixing piece (4-3); the transversely extending piece (4-2) is connected with the end of the plug part (4-1); the two ends of the connecting piece are respectively fixed with the fixing pieces (4-3) of the two pins (4).

2. The universal manual maintenance switch according to claim 1, wherein: The fixing piece (4-3) is provided with a mounting hole (4-4); the two ends of the connecting piece are fixed with the mounting holes (4-4) on the two pins (4) through bolts.

3. The universal manual maintenance switch of claim 1, wherein: The connecting piece is a fuse (3) or a metal connecting structure; different specifications of the connecting piece correspond to different sizes of the pin (4); the distance between the fixing pieces (4-3) on the two pins (4) is matched with the length of the connecting piece.

4. The universal manual maintenance switch of claim 3, wherein: The plug assembly further comprises an inner sleeve (9); the inner sleeve (9) is arranged between the connecting piece and the inner cavity of the upper shell (2); the inner side wall of the upper shell (2) is provided with a plurality of ribs (2-1); the inner sleeve (9) is provided with a groove structure (9-1) corresponding to the position of the rib (2-1); each rib (2-1) is respectively embedded in the corresponding groove structure (9-1) of the inner sleeve (9); the groove structure (9-1) on the outer side of the inner sleeve (9) is inwardly abutted against the connecting piece.

5. The universal manual maintenance switch of claim 4, wherein: Different specifications of the connecting piece correspond to different sizes of the inner sleeve (9); the width of the inner sleeve (9) embedded is matched with the width of the connecting piece.

6. The universal manual maintenance switch of claim 1, wherein: The pin (4) is a metal stepped shaft cutting forming structure, or a metal pipe radial stamping forming structure, or a sheet-shaped bending forming structure.

7. The universal manual maintenance switch of claim 1, wherein: Further comprising a sealing ring (6) arranged between the socket assembly and the plug assembly.

8. The universal manual maintenance switch of claim 1, wherein: Further comprising a handle (1); the handle (1) is rotationally connected with the outer side wall of the upper shell (2); the outer side wall of the lower shell (7) is provided with a plug-in push shaft (7-1); the handle (1) is provided with a sliding groove (1-1); the plug-in push shaft (7-1) of the lower shell (7) extends into the sliding groove (1-1); the sliding groove (1-1) gradually moves away from the rotation center of the handle (1) from one end to the other end.

9. The universal manual maintenance switch of claim 8, wherein: The outer side wall of the upper shell (2) is provided with two pin shafts on both sides; the outer side wall of the lower shell (7) is provided with two plug-in push shafts (7-1) on both sides; the handle (1) is U-shaped, comprising an integrally formed gripping part, and two separate pieces arranged on both sides of the upper shell (2) respectively; the two separate pieces are respectively rotationally connected with the pin shafts on both sides of the upper shell (2); the two separate pieces are respectively provided with sliding grooves (1-1); the sliding grooves (1-1) on the two separate pieces correspond to the plug-in push shafts (7-1) on both sides of the lower shell (7) respectively.

10. The universal manual maintenance switch of claim 8, wherein: The sliding groove (1-1) is arc-shaped.

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