CN211789649U - Rotatable bolt assembly - Google Patents

Abstract

The utility model discloses a rotatable bolt subassembly relates to electrical switch technical field. The conductive performance is good, the heating is not easy, the safety is high, and the requirement on the processing precision of parts is low. The utility model relates to a rotatable bolt component, which comprises an inserting sleeve and a bolt, wherein the bolt is hinged on one side of the inserting sleeve, the bolt can be extended and folded, the inserting sleeve comprises a metal bracket, an elastic inserting sheet, a metal connecting plate and an elastic sheet, and when the bolt is positioned at an extending position, the metal bracket is abutted against the tail end of the bolt; the elastic insertion sheet is fixed on the metal bracket and forms a socket for inserting an external bolt; the first end of the metal connecting plate is connected to the metal bracket, and the bolt is hinged to the second end of the metal connecting plate; the elastic sheet is fixed on the metal bracket and used for providing elastic damping for the tail end of the bolt when the bolt rotates or is in a folding position. The utility model is used for promote bolt subassembly's performance.

Description

Rotatable bolt assembly

Technical Field

The utility model relates to an electrical switch technical field especially relates to a rotatable bolt subassembly.

Background

With the development of society, the international tourism and the international business activities are more and more frequent, people are not required to bring some products needing to be connected with a power supply in the activities, such as notebook computers, chargers and the like, but the current plug and socket standards in the world are not unified, and the standards of various countries are different, so that the electronic products are very inconvenient to be connected with the power supply, and therefore, a travel converter is produced. Travel converters are known in electrician electrical as conversion sockets. One side of the socket is provided with a plug, and the other side of the socket is provided with a socket, so that the socket can be used for switching between the plug and the socket in different countries or regions, and an electric appliance can be smoothly connected with a power supply.

In order to improve the universality, most of the existing travel converters are of a structure that a ground pole bolt can rotate by 90 degrees, when the ground pole bolt is needed to be used, the ground pole bolt is rotated to extend out of the end face of the travel converter, and when the ground pole bolt is needed to be retracted, the bolt is rotated by 90 degrees in the opposite direction to be folded back. Referring to fig. 1, most of the ground pin assemblies of the conventional travel converter include a plug bush 01, a pin 02 and a metal rotating shaft 03, wherein the pin 02 is hinged to a connecting arm (not shown) of a lower cover 04 through the metal rotating shaft 03, two elastic insertion pieces 011 of the plug bush 01 are inserted into a liner support 05 of the travel converter, the lower cover 04 and the liner support 05 are fastened through a screw 06, and the plug bush 01 is pressed between the lower cover 04 and the liner support 05 to ensure that the pin 02 is in contact with the bottom surface of the plug bush 01. The shortcoming of this structure is because lower cover 04 and inner bag support 05 are the plastic insulating part, meet the heat and can take place to warp, lead to the plug bush 01 can not compressed tightly, and the plug bush 01 contacts poorly with bolt 02 easily, and then leads to the earth's pole bolt subassembly to generate heat, causes the potential safety hazard, because bolt 02 and plug bush 01 lean on lower cover 04 and inner bag support 05 to compress tightly in addition, consequently all are higher to the machining precision and the assembly requirement of part.

SUMMERY OF THE UTILITY MODEL

An embodiment of the utility model provides a rotatable bolt subassembly, electric conductive property is good, is difficult for generating heat, and the security is high, and all lower to the machining precision and the assembly requirement of part.

In order to achieve the above object, an embodiment of the present invention provides a rotatable plug pin assembly, including plug bush and plug pin, the plug pin articulates in plug bush one side, the plug pin can realize stretching out and retracing, the plug bush includes: the metal bracket is abutted against the tail end of the bolt when the bolt is in the extending position; the elastic insertion piece is fixed on the metal support and forms an insertion port for inserting an external insertion pin; the first end of the metal connecting plate is fixed on the metal bracket, and the bolt is hinged to the second end of the metal connecting plate; the elastic sheet is fixed on the metal support and used for providing elastic damping for the tail end of the bolt when the bolt rotates or is in a folding position.

The embodiment of the utility model provides a rotatable bolt subassembly, including plug bush and bolt, the bolt articulates in plug bush one side, and the bolt can realize stretching out and retracing, and the plug bush includes metal support, elasticity inserted sheet, metal connecting plate and shell fragment; wherein, the metal bracket is fixed with an elastic inserting sheet which forms an inserting port for inserting an external inserting pin; when the bolt is in the extending position, the metal bracket is abutted against the tail end of the bolt, and a first conductive path is formed between the bolt and the plug bush; the first end of the metal connecting plate is fixed on the metal bracket, the bolt is hinged on the second end of the metal connecting plate, and the bolt and the plug bush form a second conductive path; the metal plate support is also fixedly provided with an elastic sheet, and when the plug pin rotates or is positioned at a folding position, the elastic sheet can provide elastic damping for the tail end of the plug pin, so that the rotating hand feeling of the plug pin is improved, and the plug pin is prevented from extending out after being folded; therefore, in the embodiment of the invention, the metal connecting plate is fixed on the plug bush, the plug pin is hinged on the metal connecting plate, and the plug pin and the plug bush are conductive through the double channels, so that the conductive performance is good, the heating is not easy, the safety is high, the plug bush and the plug pin are not required to be pressed by other parts to realize conductive contact, and the requirements on the processing precision and the assembly of the parts are lower.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic diagram of a ground bolt of a travel converter;

FIG. 2 is a front view of a rotatable latch assembly according to an embodiment of the present invention;

FIG. 3 is a side view of a rotatable latch assembly according to an embodiment of the present invention;

FIG. 4 is a top view of a rotatable latch assembly according to an embodiment of the present invention;

FIG. 5 is an exploded view of a rotatable plug pin assembly according to an embodiment of the present invention;

FIG. 6 is a front view of a plug sleeve in a rotatable plug pin assembly according to an embodiment of the present invention;

fig. 7 is a bottom view of a plug housing in a rotatable plug pin assembly in accordance with an embodiment of the present invention;

FIG. 8 is an expanded view of a sleeve in a rotatable plug assembly according to an embodiment of the present invention;

fig. 9 is a state diagram of the rotatable latch assembly according to the embodiment of the present invention when the latch extends out and folds back.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; the specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

Referring to fig. 2 to 5, an embodiment of the present invention provides a rotatable plug pin assembly, including a plug bush 1 and a plug pin 3, where the plug pin 3 is hinged to the plug bush 1, the plug pin 3 can be extended and folded back, and the plug bush 1 includes a metal bracket 11, an elastic insertion piece 12, a metal connecting plate 14, and an elastic piece 15; wherein, the metal bracket 11 is fixed with an elastic inserting sheet 12, and the elastic inserting sheet 12 forms a socket 13 for inserting an external bolt; when the bolt 3 is in the extending position, the metal bracket 11 is abutted against the tail end of the bolt 3; the first end of metal connecting plate 14 is connected on metal support 11, and plug bush 1 is connected to the second end of metal connecting plate 14, still is fixed with shell fragment 15 on metal support 11, and when bolt 3 was rotatory or was in the position of turning back, shell fragment 15 can provide elastic damping for the tail end of bolt 3, improves the rotation of bolt 3 and feels to it stretches out again to prevent that bolt 3 from turning back. When the bolt 3 is in the extending position, the tail end of the bolt 3 is abutted against the metal bracket 11 and forms a first conductive path; bolt 3 articulates on metal connecting plate 14, and bolt 3 forms the second conductive path with plug bush 1, because, electrically conducts through the bi-pass between plug bush 1 and the bolt 3, consequently, the embodiment of the utility model discloses an electric conductive property is good, is difficult for generating heat, and the security is high, and because plug bush 1 articulates on bolt 3, consequently, need not rely on compressing tightly of other parts between plug bush 1 and the bolt 3 to realize electrically conductive contact, and machining precision and the assembly requirement to the part are all lower.

The elastic insertion pieces have various realizable structures, for example, the number of the elastic insertion pieces can be three, two of the elastic insertion pieces are arranged in parallel, the third elastic insertion piece is perpendicular to the two of the elastic insertion pieces, and two mutually perpendicular insertion ports are formed between the two parallel elastic insertion pieces; further illustratively, referring to fig. 3, the number of the elastic insertion pieces 12 may be two, the two elastic insertion pieces 12 are arranged in parallel, and an insertion port is formed between the two elastic insertion pieces 12, because the insertion port is more common in a conversion socket arranged on the end surface opposite to the plug pin, the two elastic insertion pieces can meet the user requirement, and compared with the three elastic insertion pieces, the two elastic insertion pieces are more convenient to process and lower in cost, and therefore, the two elastic insertion pieces are preferably selected.

The bolt can be hinged on the plug bush through various realizable structures, for example, the bolt 3 can comprise a plug part and a hinged part vertically arranged on the side wall of the plug part, the hinged part can be a hinged shaft, the plug part is hinged on the plug bush through the hinged shaft, and the plug part can rotate along with the hinged shaft to realize extending and folding; for another example, referring to fig. 2, the pin 3 may be hinged to the sleeve 1 through the metal shaft 2, and the pin 3 may rotate around the metal shaft 2 to extend and retract; if the bolt is of a structure comprising the inserting part and the hinge part, the inserting part and the hinge part are integrated, and the bolt is special in shape, so that the bolt is high in processing difficulty and high in cost; if the structure that the bolt 3 is hinged on the plug bush 1 through the metal shaft 2 is adopted, the bolt 3 and the metal shaft 2 can be processed independently, the processing difficulty is low, and the cost is low; therefore, the structure in which the plug pin 3 is hinged to the socket 1 through the metal shaft 2 is preferable.

The plug bush 1 has various realizable structures, and as an example, the plug bush 1 can be a welding part, namely the elastic insertion piece 12, the metal connecting plate 14 and the elastic piece 15 are welded on the metal bracket 11; as another example, referring to fig. 8, the socket 1 may be an integrally formed member, which has advantages of simple process, mass production, and low cost, and therefore, the socket 1 is preferably an integrally formed member.

Specifically, the plug bush 1 can be a sheet metal part, and the elastic insertion piece 12, the metal connecting plate 14 and the elastic piece 15 are formed by bending.

The metal plate support 11 may be a metal plate, and the metal connecting plate 14 may have various arrangement modes, for example, the metal connecting plate 14 may be arranged perpendicular to the metal plate, which has a disadvantage that the elasticity of the elastic plate 15 is poor because the distance between the metal connecting plate 14 and the elastic plate 15 is short, that is, the elastic arm of the elastic plate 15 is short; as another example, referring to fig. 5 and 6, a first end of the metal connecting plate 14 is close to the elastic insertion piece 12, and a second end of the metal connecting plate 14 is far from the elastic insertion piece 12, because one end of the elastic piece 15 is fixed at an end of the metal plate, and the other end of the elastic piece 15 is bent towards a side of the metal plate where the metal connecting plate 14 is arranged, the structure has the advantage that the position of the plug pin 3 is not changed, but the elastic arm of the elastic piece 15 is lengthened, the elasticity of the elastic piece 15 is better, the retraction state of the plug pin 3 is more reliable, and the rotation hand feeling of the plug.

Specifically, referring to fig. 6, for better appearance, the metal connecting plate 14 may include a first connecting plate 142 and a second connecting plate 143, the first connecting plate 142 and the metal plate are perpendicular to each other, and an included angle between the second connecting plate 143 and the first connecting plate 142 is an obtuse angle.

The number of the metal connecting plates 14 is not exclusive, for example, when the number of the metal connecting plates 14 is one, the metal shaft 2 is either located on one side of the metal connecting plates 14, or a groove or a notch needs to be arranged at the tail end of the metal shaft 2 so that the tail end of the metal shaft 2 can abut against the side surface of the metal plate; if the metal shaft 2 is positioned on one side of the metal connecting plate 14, the metal shaft 2 is a cantilever beam, and the fixed end of the cantilever beam bears a large bending moment and is easily damaged; if the tail end of the plug pin 3 is provided with the groove, the contact area between the tail end of the plug pin 3 and the metal plate is reduced, which affects the conductivity of the embodiment of the utility model; as another example, referring to fig. 5 and 7, the number of the metal connecting plates 14 may be two, the two metal connecting plates 14 are arranged in parallel, and the plug pin 3 is located between the two metal connecting plates 14, which has the advantages that the metal shaft 2 is a simple beam, both pivots bear bending moment, the metal shaft 2 is not easily damaged, and the contact area between the tail end of the plug pin 3 and the metal plate is not changed; therefore, it is preferable that the metal connecting plates 14 are two, which are arranged in parallel, and the plug pin 1 is located between the two metal connecting plates 14.

Referring to fig. 9, the dotted line part is a folding position of the bolt 3, and the arrow is a rotating direction of the bolt 3, and normally, when the bolt 3 is retracted, the head of the bolt 3 should rotate in a direction away from the elastic sheet 15 until the bolt 3 is in the folding position, that is, the bolt 3 is parallel to the metal sheet 1; because bolt 3 articulates on metal connecting plate 14 through metal axle 2, consequently the head of bolt 3 both can be to the direction rotation that is close to the position of turning back, also can be to the direction rotation of keeping away from the position of turning back, if user's maloperation rotates bolt 3 to the direction of keeping away from the return position, then shell fragment 15 may be damaged, consequently, can set up the rotatory locating part 111 of direction that is used for preventing the head of bolt 3 to keeping away from the position of turning back to the metal sheet, from this, can prevent that shell fragment 15 from being damaged, the extension the utility model discloses the life of an embodiment.

Specifically, referring to fig. 7, the limiting member 111 may be a protrusion disposed on a side surface of the metal plate close to the plug pin 3, and if the insert sleeve 1 is a sheet metal part, the protrusion may be formed by stamping.

Referring to fig. 5, in order to be able to adapt to the european standard socket, the plug pin 3 may be a cylindrical plug pin, in order to increase the contact area between the plug pin 3 and the protrusion, the side of the protrusion close to the plug pin 3 may be a plane, but since the side of the plug pin 3 is a cylindrical surface, the contact between the plug pin 3 and the protrusion is a line contact, which is not reliable in limiting, a first plane 31 may be disposed on the side of the plug pin 3, the first plane 31 abuts against the side of the protrusion, when the plug pin 3 rotates from the extended position to the direction away from the folded position, and the plug pin 3 is not yet in contact with the elastic sheet 15, the first plane 31 already abuts against the side of the protrusion, and the plug pin 3 stops rotating, thereby preventing the elastic sheet 15 from being damaged due to a user.

In particular, the first plane 31 may be parallel to the axis of the pin 3 for ease of machining.

Referring to fig. 5, because the plug 3 is a cylindrical plug, in the rotation process of the plug 3, the plug 3 and the elastic sheet 15 are in point contact, when the plug 3 pushes the elastic sheet 15, the plug 3 may slip, which causes unreliable contact, therefore, the second plane 32 may be disposed on the sidewall of the plug 3, the second plane 32 is disposed toward the elastic sheet 15, when the plug 3 rotates around the metal shaft 2, the plug 3 contacts with the elastic sheet 15 through the ridge line between the second plane 32 and the tail end of the plug 3, the contact mode is line contact, compared with point contact, the plug 3 is not easy to slip, and the provided elastic damping is more stable.

The metal shaft 2 has various realizable modes, for example, the metal shaft 2 can be a metal rotating shaft, and the structure has the defects that the metal shaft 2 has a gap with the hole wall of the mounting hole 141 of the corresponding metal connecting plate 14, when the plug pin 3 is inserted into an external jack, the metal shaft 2 can move in the mounting hole 141, the plug pin 3 can float and tilt, so that the plug pin 3 is not easy to be inserted into the external jack, and the user experience is influenced; for another example, referring to fig. 2 and 5, the metal shaft 2 may be a rivet, a riveted point of the rivet is located on an outer side of one of the metal connecting plates 14, the rivet is fastened to the metal connecting plate 14 after being riveted, when the plug pin 3 is inserted into the external jack, the rivet does not move in the radial direction, the plug pin 3 does not float and tilt, and is easily inserted into the external jack, so that the user experience is better.

The plug bush 1 can adopt brass or phosphor bronze, and because the wear resistance and elasticity of phosphor bronze are superior to brass, phosphor bronze is preferred for the plug bush 1, and the plug bush 1 adopting phosphor bronze can be inserted and pulled for 5000 times or even 8000 times, and the service life is longer.

The above embodiments are only specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention, and all should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. A rotatable latch assembly, characterized in that,

including plug bush and bolt, the bolt articulates plug bush one side, the bolt can be realized stretching out and retracing, the plug bush includes:

the metal bracket is abutted against the tail end of the bolt when the bolt is in the extending position;

the elastic insertion piece is fixed on the metal support and forms an insertion port for inserting an external insertion pin;

the first end of the metal connecting plate is fixed on the metal bracket, and the bolt is hinged to the second end of the metal connecting plate;

the elastic sheet is fixed on the metal support and used for providing elastic damping for the tail end of the bolt when the bolt rotates or is in a folding position.

2. The rotatable latch assembly of claim 1, wherein there are two of the resilient tabs, the two resilient tabs being arranged in parallel, the two resilient tabs forming the socket therebetween.

3. The rotatable latch assembly of claim 1 wherein said latch is hinged to said sleeve by a metal shaft.

4. The rotatable plug pin assembly of claim 1 wherein said socket is an integrally formed piece.

5. The rotatable latch assembly of claim 1,

the metal support is a metal plate, one end of the elastic sheet is fixed at the end part of the metal plate, and the other end of the elastic sheet is bent towards one side of the metal plate, which is provided with the metal connecting plate; the first end of the metal connecting plate is far away from the elastic sheet, and the second end of the metal connecting plate is close to the elastic sheet.

6. The rotatable latch assembly of claim 1, wherein there are two of said metal connector plates, said two metal connector plates being arranged in parallel, said latch being located between said two metal connector plates.

7. The rotatable latch assembly of claim 5, wherein the metal plate is provided with a stop portion for stopping rotation of the latch from the extended position in a direction away from the retracted position.

8. The rotatable plug pin assembly of claim 7 wherein said retaining portion is a projection disposed on a side of said metal plate adjacent said plug pin.

9. The rotatable latch assembly of claim 8,

the side surface of the bulge close to the bolt is a plane; the bolt is a cylindrical bolt; and a first plane is arranged on the side wall of the bolt and is abutted against the side surface of the bulge.

10. The rotatable latch assembly of any of claims 1-8,

the bolt is a cylindrical bolt; and a second plane is arranged on the side wall of the bolt, and the second plane is arranged towards the elastic sheet.

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