CN211480379U - Turnover device - Google Patents

Abstract

The application discloses a turnover device, which comprises a base body and a cover body, wherein the cover body comprises a cover plate and side edges, and the inner surfaces of the side edges are provided with bulges; the base body is provided with a sliding groove corresponding to the lug boss, wherein the lug boss can be accommodated in the sliding groove and can slide along the sliding groove; the sliding groove is provided with a limiting end part, the limiting end part comprises a concave area and an end wall positioned around the concave part, and when the convex part enters the concave part and is limited by the limiting end part, the cover body is in a turnover state relative to the base body. The device can ensure that the cover body in the turnover state stably keeps the relative position with the base body without external force support, thereby being convenient for operating the internal structure of the device.

Description

Turnover device

Technical Field

The application relates to a device with a turnover structure, in particular to a turnover device and a plug.

Background

The turnover device is a device consisting of a base body and a cover body, wherein sliding grooves are formed in two sides of the base body, and pivoting shafts are arranged on two sides of the cover body. When the pivot shaft slides in the sliding groove, the cover body can be opened away from the base body or closed close to the base body. Currently, the foldable device is widely used in various fields, and it is convenient to operate the internal structure of the device without removing the cover. For example, the foldable device may be a plug, and when the pivot shaft slides in the sliding groove, so that the cover is opened away from the base, the internal structure of the plug can be operated without removing the cover, such as a wiring operation.

However, since the pivot shaft slides unhindered in the slide groove, it is difficult to maintain the relative position with the base in the folded state of the lid.

SUMMERY OF THE UTILITY MODEL

In view of this, the present application provides a foldable device and a plug, which can stably maintain the relative position between the cover and the base in the folded state without external support, and facilitate the operation of the internal structure of the device.

Specifically, the method comprises the following technical scheme:

the application provides a can turn over a device, a serial communication port, the device includes: a base body and a cover body, wherein,

the cover body comprises a cover plate and a side edge, wherein the inner surface of the side edge is provided with a convex part;

the base body is provided with a sliding groove corresponding to the lug boss, wherein the lug boss can be accommodated in the sliding groove and can slide along the sliding groove;

the sliding groove is provided with a limiting end part, the limiting end part comprises a concave area and an end wall positioned around the concave part, and when the convex part enters the concave part and is limited by the limiting end part, the cover body is in a turnover state relative to the base body.

In one possible design, the cross-sectional shape of the recessed portion of the restraint end is at least partially complementary to the cross-sectional shape of the boss, thereby limiting rotation of the boss in the restraint end.

In one possible design, the end wall of the end stop has a projection projecting toward the recessed portion, and the projection has a recess capable of receiving at least a portion of the projection.

In one possible design, the projection comprises a hemisphere with the recess.

In one possible design, the sliding groove further has a guide portion adjacent to the stopper end portion, the depth of the guide portion gradually decreases in a direction toward the stopper end portion, and the protrusion enters the stopper end portion via the guide portion.

In one possible design, the end wall of the limiting end part adjacent to the guide part is provided with a slope, the depth of the slope is gradually increased along the direction away from the guide part, and the convex part enters or leaves the concave part through the slope.

In a possible design, the axis of the sliding groove is an arc line which protrudes to one side of the opening when the turnover device is turned over.

In one possible design, the sliding groove has an open end opposite to the stopper end, wherein the protrusion is located outside the sliding groove when the cover is in the closed state close to the base, and slides from the open end into the sliding groove when the cover is opened gradually away from the base.

In one possible design, the foldable device is a plug.

In one possible design, the base body comprises a lower housing and a pin seat fixed in the lower housing, and the sliding groove is located on the side face of the pin seat.

In one possible design, the pin base includes a pin cover and a pin structure provided with a pin, the pin cover covers the pin structure, and the sliding groove is located on the side surface of the pin cover.

The technical scheme provided by the embodiment of the application has the beneficial effects that at least:

the inner surface of the side edge of the cover body of the turnover device is provided with a protruding part, and the base body is provided with a sliding groove corresponding to the protruding part, so that the protruding part can be accommodated in the sliding groove and can slide along the sliding groove, and the cover body can be turned over away from the base body. And the sliding groove is provided with a limiting end part, when the protruding part enters the concave part of the limiting end part and is limited by the limiting end part, the cover body in the turnover state can stably keep the relative position with the base body without external force support, and therefore the operation of the internal structure of the device is facilitated.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a perspective view illustrating a foldable device provided in an embodiment of the present application in a closed state;

fig. 2 is a perspective view illustrating a foldable device according to an embodiment of the present application in a folded state;

FIG. 3 is a partial schematic structural view of a foldable device according to an embodiment of the present disclosure, where a sliding groove 21 is located;

FIG. 4 shows a further enlarged schematic view of the restraint end 211 of FIG. 3;

FIG. 5 is a partial schematic structural view of a foldable device provided in the present application and having a convex portion 13;

fig. 6 is a perspective view of a foldable device provided in an embodiment of the present application, which is not provided with a latch cover 251 and is in a folded state.

The reference numerals in the drawings denote:

1-cover body, 11-cover plate, 111-fixing hole, 12-side edge, 121-convex strip, 122-main body portion, 123-extension portion, 13-bulge portion, 131-notch, 132-hemisphere, 133-column, 134-plane, 14-fixing piece, 141-first cylinder body, 142-second cylinder body,

2-base body, 21-sliding groove, 211-limiting end part, 2111-depressed part, 2112-end wall, 2113-salient point, 2114-slope, 212-opening end part, 213-groove wall, 22-guiding part, 23-first fixing part, 24-lower shell, 25-plug seat, 251-plug cover, 2511-through hole, 252-plug structure, 26-second fixing part, 27-line pressing plate, 28-line connecting part,

3-a first screw, 4-a bolt, 5-a threading hole, 6-a second screw and 7-a third screw.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In order to make the technical solutions and advantages of the present application clearer, the following will describe the embodiments of the present application in further detail with reference to the accompanying drawings.

The turnover device can protect the internal parts and is convenient to operate the internal structure, so that the turnover device is widely applied to various fields of production and life. Aiming at the problem that the relative position between the turnover device and the base body is difficult to keep stable when the cover body is in a turnover state in the related art, the embodiment of the application provides a novel turnover device. Wherein, the turnover device can be a plug, a tool box, a storage box, a dressing box, a toy box and the like. For convenience of explanation, the foldable device will be described as an example of a plug. That is, the foldable devices in the figures are all plugs. It will be understood by those skilled in the art that the cover, base and associated structure of the foldable device described hereinafter, in addition to the structure specific to the plug, is applicable not only to the plug, but also to various devices that require folding. The object of protection of the present application is therefore not limited to plugs, but to various foldable devices falling within the scope of protection of the claims of the present application.

The structure of the foldable device provided by the embodiment of the application can be seen in figures 1-6.

Referring to fig. 1, the plug includes: a cover 1 and a base 2. The cover 1 comprises a cover plate 11 and a side edge 12. Fig. 1 clearly shows an exemplary structure of the cover 1. As can be seen from these figures, the side edges 12 are located at the periphery of the cover plate 11, the surface of the side edges 12 being substantially perpendicular to the plate surface of the cover plate 11. The side edges 12 are intended to engage with the edges of the base body 2. The outer wall of the extension 123 shown in fig. 2, which is distal from the cover plate 11, of the side edge 12 has an inwardly decreasing dimension relative to the outer wall of the main body portion 122 of the side edge 12, so that the extension 123 can enter the inside of the edge of the base body 2 when closed to form a better closed snap fit of the cover 1 and the base body 2. The side edges 12 are typically integrally formed with the cover plate 11, but may be formed separately and joined.

Referring to fig. 3, the inner surface of the side edge 12 has a raised portion 13. Referring to fig. 4, the base body 2 has a slide groove 21 corresponding to the projection 13, wherein the projection 13 is receivable in the slide groove 21 and slidable along the slide groove 21. As shown in fig. 3, when the boss 13 is slid to a position at the lower end or lower side of the slide groove 21, the lid body 1 is in a closed state in which it is fitted to the base body 2; as shown in fig. 2, when the boss 13 slides to the upper end of the slide groove 21, the lid body 1 is folded back with respect to the base body 2. The folded state in this application means that the cover plate 11 of the lid 1 is approximately perpendicular to the base body 2, and the opening width of the lid 1 is large and generally cannot be opened any further, and therefore can also be referred to as a maximum opening state.

As shown in fig. 3, the slide groove 21 has a stopper end 211, and the stopper end 211 includes a recessed portion 2111 and an end wall 2112 located around the recessed portion 2111. The stopper end 211 is a part of the slide groove 21, and thus a part of the end wall 2112 also constitutes a part of the groove wall 213 of the slide groove 21, but the end wall 2112 may have a part other than the groove wall 213, so that the recessed portion 2111 surrounded by the end wall 2112 is adapted to receive the projection 13.

As shown in fig. 2, when the convex portion 13 enters the concave portion 2111 and is stopped by the stopper end portion 211, the lid body 1 is in a folded state away from the base body 2. The convex portion 13 is restrained, meaning that the convex portion 13 cannot or hardly undergo a positional change in the concave portion 2111 without an external force. This means that the lid body 1 can be held in the folded-back state without external support. The stop can be realized, for example, by a positive fit of the projection 13 with the stop end 211, or by an additional elastic detent.

It will be appreciated that the slidable means of the present application will generally have two sets of laterally opposed projections 13 and sliding grooves 21, i.e. formed as male and female sliding engagement formations symmetrically distributed on either side. However, in some embodiments, it is possible to have only one set of projections 13 and sliding grooves 21, with the other side merely abutting and not having corresponding male and female sliding engagement structures. In other embodiments, the two sets of protrusions 13 and sliding grooves 21 do not necessarily need to be completely identical in structure, and for example, a limiting structure may be provided only on one side of the sliding groove 21.

The advantage that the device brought can turn over that this application embodiment provided does:

the inner surface of the side edge 12 of the cover body 1 of the foldable device is provided with a convex part 13, and the base body 2 is provided with a sliding groove 21 corresponding to the convex part 13, so that the convex part 13 can be accommodated in the sliding groove 21 and can slide along the sliding groove 21, and the cover body 1 can be folded away from the base body 2. And the sliding groove 21 has a limit end 211, when the protrusion 13 enters the recess 2111 of the limit end 211 and is limited by the limit end 211, the cover 1 in the folded state can be stably maintained at a relative position to the base 2 without external support, thereby facilitating the operation of the internal structure of the apparatus.

Therefore, when the internal structure of the foldable device needs to be operated and the cover 1 is fastened to the base 2, the cover 1 can be lifted gradually from the end of the cover 1 away from the protruding portion 13, and the protruding portion 13 slides upwards in the corresponding sliding groove 21. When the protruding portion 13 enters the limiting end portion 211 and is limited by the limiting end portion 211 and does not move upwards any more, the cover body 1 is in a retainable turnover state, and the internal structure can be conveniently operated. After the operation is finished, the cover body 1 is pressed or pulled downwards, the protruding part 13 exits the limiting end part 211 under the action of pressure or traction force, and slides in the sliding groove 21 from top to bottom, and finally the cover body 1 is buckled on the base body 2 again.

In one possible design, the cross-sectional shape of the recessed portion 2111 of the restricting end 211 is at least partially complementary to the cross-sectional shape of the protrusion 13, so as to restrict the rotation of the protrusion 13 in the restricting end 211 and prevent the relative position of the cover 1 in the folded-over state and the base 2 from changing due to the rotation of the protrusion 13 in the restricting end 211. Here, the complementary cross-sectional shape means a concavo-convex complementary structure or other similar complementary structures, and it is apparent that the complementary structures are easily joined together to form a stable structure that is difficult to move relative to each other.

Optionally, as shown in fig. 3, the end wall 2112 of the stopper end portion 211 has a convex point 2113 protruding toward the recessed portion 2111. As shown in fig. 5, the protrusion 13 has a corresponding notch 131, and the notch 131 can accommodate at least a portion of the protrusion 2113, and when at least a portion of the protrusion 2113 enters the notch 131, it is obvious that the protrusion 13 is difficult to rotate or otherwise change position in the stopper end 211.

In one possible design, the boss 13 includes a hemisphere 132 with a notch 131. When the hemisphere 132 slides in the slide groove 21, the hemisphere 132 is less hindered by the groove wall 213 than in other shapes. Therefore, the arrangement can make the sliding of the convex part 13 in the sliding groove 21 more convenient and smoother, and further make the operation of opening the cover body 1 more convenient and smoother. As shown in fig. 5, the protrusion 13 may further include a column 133, and the hemisphere 132 is located at a side away from the column 133. For example, the rounded surface of the hemisphere 132 is connected to one bottom surface of the column 133, and the other surface of the column 133 is directly connected to the side edge 12 of the lid body 1.

Alternatively, as shown in fig. 5, a plane 134 may be provided on a side of the protruding portion 13 facing the sliding groove 21 (fig. 5 shows a side of the protruding portion 13, so that the plane 134 looks substantially straight), some damping is generally required to open the cover 1, and if the protruding portion 13 is too smooth, the feeling is not good when the cover is operated, so that the friction generated between the protruding portion 13 and the sliding groove 21 may be increased to some extent by providing the plane 134, so that the operator can have a comfortable operation feeling when opening and closing the cover 1.

Accordingly, the cross-section of the recessed portion 2111 in FIG. 5 may be rounded with a notch (as there is a bump 2113) to facilitate mating with the boss 13.

In one possible design, as shown in fig. 3 or 4, the sliding groove 21 further has a guide portion 22 adjacent to the stopper end 211, the depth of the guide portion 22 gradually decreases in a direction approaching the stopper end 211, and the protruding portion 13 enters the stopper end 211 via the guide portion 22. This arrangement makes it possible to make the convex portion 13 enter the concave portion 2111 more smoothly, i.e., the force required to fold the lid body 1 is small. The depth of the guide portion 22 may be linearly changed or may be changed in a curved line in a direction approaching the stopper end 211.

In one possible design, as shown in fig. 4, the end wall 2112 of the stopper end 211 adjacent to the guide portion 22 has a slope 2114, the depth at the slope 2114 is gradually increased in a direction away from the guide portion 22, and the protrusion 13 enters or leaves the recessed portion 2111 via the slope 2114. This arrangement makes it possible to make the convex portion 13 enter or leave the concave portion 2111 more smoothly, i.e., not only a small force is required to fold the lid body 1, but also a small force is required to close the lid body 1. The increase in depth at the ramp 2114 in a direction away from the guide 22 may be a linear change or a curvilinear change.

In one possible design, as shown in FIG. 4, the location of both the ramp 2114 and the hump 2113 actually coincide, i.e., the hump 2113 becomes a portion of the ramp 2114 or both are equivalent or both have a coincident portion. The raised point 2113 may be provided at other suitable locations on the end wall 2112 of the restraint end 211, and thus the ramp 2114 and raised point 2113 may be independent of one another in some embodiments.

In one possible design, as shown in fig. 3, the axis of the sliding groove 21 is an arc line which protrudes from one side of the opening when the foldable device is folded. This arrangement makes it possible to make the sliding of the boss 13 in the slide groove 21 smoother than if the axis of the slide groove 21 were arranged in a straight line.

In one possible design, the sliding channel 21 has an open end 212 opposite the limit end 211, as shown in fig. 3. Here, when the lid body 1 is in the closed state adjacent to the base body 2, the protruding portion 13 is located outside the slide groove 21, i.e., at the lower left of the open end portion 212 in the drawing. In some embodiments, the protrusion 13 being outside the sliding groove 21 means that a portion of the protrusion 13 is outside the open end 212 and another portion is within the open end 212. When the lid body 1 is opened gradually away from the base body 2, the boss 13 slides from the opening end portion 212 into the slide groove 21.

In one possible design, the base body 2 comprises a first fixing portion 23. As shown in fig. 6. The side of the cover plate 11 facing the base body 2 has fastening means 14. As shown in fig. 1, the cover plate 11 is also provided with fixing holes 111. As shown in fig. 1, in order to fix the cover 1 and the base 2 in the closed state where the cover 1 is attached to the base 2, the first screw 3 may be inserted into the first fixing portion 23 after passing through the fixing hole 111 and the fixing member 14 in this order.

Alternatively, the fixing member 14 may include a first cylinder 141 and a second cylinder 142 connected as shown in fig. 6. Wherein, the outer cylinder diameter of the first cylinder 141 is larger than that of the second cylinder 142; the diameter of the cross section of the nut of the first screw 3 is smaller than the inner cylinder diameter of the first cylinder 141 and larger than the inner cylinder diameter of the second cylinder 142. The arrangement is such that when the first screw 3 is inserted into the fastening element 14, only its shank can be passed through, but the nut cannot.

Alternatively, as shown in fig. 1, the first fixing portion 23 may be located at the middle of the base 2.

In one possible design, as shown in fig. 1 or 2, the side edges 12 may be provided with a raised strip 121. The number of the convex strips 121 is at least one. When the number of the protruding strips 121 is greater than or equal to two, two adjacent protruding strips 121 are parallel to each other, and the extending direction of the protruding strips 121 may be the same as the direction of the height of the cover 1. Utilize sand grip 121 in order to increase the friction between operating personnel's finger and lid 1, be convenient for operate lid 1, simultaneously, make lid 1 have better touch comfort level.

For example, as shown in fig. 2, the number of the convex strips 121 may be four.

Alternatively, when the number of the protruding strips 121 is equal to or greater than two, the lengths of two adjacent protruding strips 121 may be the same or different, and are specifically limited according to the size of the plug. For example, when the number of the convex strips 121 is four, the two convex strips 121 located at the middle of the four convex strips 121 have the same length, and the two convex strips 121 located at the outermost side have the same length.

In one possible design, the cover 1 and the base 2 are made of plastic, which facilitates the processing and forming. However, in some embodiments, the cover 1 and the base 2 may be made of other materials, for example, a part of the cover may be made of a metal material.

The above description of the plug as an example is generally applicable to various foldable devices. Further details of the structure of the plug will be described below, generally applicable to a plug or a device similar in structure or function to the plug.

As shown in fig. 2, the base body 2 includes a lower case 24 and a pin holder 25 fixed in the lower case 24, and the sliding groove 21 is located at the side of the pin holder 25, and the sliding groove 21 is structurally supported by the pin holder 25. The pin seat 25 is a seat body provided with the pin 4. Obviously, if other foldable devices have a structure fixed in the housing similar to the pin seat 25, the side surfaces thereof may be used to arrange the side surfaces of the structure, and in some embodiments, the sliding groove 21 may be directly arranged on a suitable portion of the lower housing 24, which falls within the protection scope of the present application.

In one possible design, lower housing 24 is integrally formed with a pin holder 25 secured in lower housing 24. In other embodiments, the two components can be separately molded and then combined together.

Alternatively, the latch holder 25 includes a latch cover 251 and a latch structure 252 provided with the latch 4, the latch cover 251 covers the latch structure 252, and the slide groove 21 is located at the side of the latch cover 251, as shown in fig. 2. By providing latch cover 251, structural support is provided for slide channel 21, while providing a stop when cover 1 is moved away from base 2 to its maximum open position.

To perform the function of the plug, one side of the plug is provided with a latch 4, as shown in fig. 1. One end of the plug pin 4 is located within the base body 2, i.e. held by the plug pin structure 252, and the remainder is located outside the plug for insertion into the socket of the socket. As shown in fig. 1, the other side of the plug is provided with a threading hole 5 so that an electric wire (not shown) can enter the base body 2 through the threading hole 5.

Optionally, the number of the plugs 4 may be two or three, that is, the plug may be a two-pin plug or a three-pin plug. Correspondingly, the pin structure 252 includes two or three pin structures 2521, and one pin sub-structure 2521 is provided with one pin 4.

Alternatively, the material of the plug 4 may be hard brass, or may be cast copper, and is not limited in particular.

In one possible design, as shown in fig. 6, the base body 2 further includes a second fixing portion 26, wherein the second fixing portion 26 is located between two adjacent pin substructures 2521. Since the lower portion of the latch cover 251 is provided with an insert (not shown in the drawings), the insert can be inserted into the second fixing portion 26 to fix the latch cover 251, and thus the latch cover 251 covers the latch structure 252.

In one possible design, as shown in fig. 2, the base body 2 further comprises a thread pressing plate 27 fixed by the second screw 6 near the threading hole 5. By inserting the electric wire from the lower portion of the tension plate 27 and tightening the second screw 6, the electric wire can be securely pressed when it enters the base body 2.

Alternatively, as shown in fig. 2, the number of the second screws 6 may be two.

In one possible design, as shown in fig. 6, the base body 2 further includes a wire connection portion 28, wherein the wire connection portion 28 can be made to fix and press the electric wire connected to the plug 4 by screwing the third screw 7 into the wire connection portion 28. Alternatively, in order to ensure that the electric wire connected to each plug pin 4 is fixed and pressed, the wire connection portions 28 are arranged on one side of each plug pin sub-structure 2521, i.e., the number of the wire connection portions 28 is the same as the number of the plug pin sub-structures 2521.

Alternatively, the wire connecting portion 28 may be connected to the plug 4, and may be mounted or dismounted together. Wherein, wiring portion 28 links to each other with bolt 4 towards the one end of bolt 4, and wiring portion 28 disposes first through-hole towards the one end of bolt 4, disposes the wiring hole with first through-hole intercommunication on the bolt 4. Alternatively, as shown in fig. 6, the wire connection portion 28 may be a square, and a second wire insertion hole may be further provided at an end thereof facing the wire insertion hole 5, and a screw hole may be provided at an upper end thereof. In operation, after the inserting end of the electric wire is inserted into the second through hole and penetrates out of the first through hole, the electric wire can be connected with the plug pin 4 at the wiring hole which is arranged on the plug pin 4 and communicated with the first through hole, so that the electric connection between the plug pin 4 and the electric wire is realized, and then the third screw 7 is screwed into the wiring part 28 from the screw hole at the upper end of the wiring part 28 so as to fasten the electric wire.

Alternatively, the material of the wire connecting portion 28 may be the same as that of the plug 4.

It will be appreciated that the wires entering the interior of the body 2 may comprise a live and neutral wire, with one wire being connected to one of the pins 4. For example, when the plug is a two pin plug, the hot wire is connected to one pin 4 and the neutral wire is connected to the other pin 4.

Alternatively, as shown in fig. 2, the plug cover 251 covers the wire connection portion 28, and a through hole 2511 may be provided in the plug cover 251 in order to facilitate tightening or loosening of the third screw 7 without detaching the plug cover 251.

It can be understood that since the lid body 1 in the folded-back state can stably maintain the position relative to the base body 2, the base body 2 has a sufficiently large screwing space when the second screw 6 and the third screw 7 are operated.

In a possible example, when the internal structure of the plug needs to be operated, such as a wiring operation, an operator can press the convex strip 121 on the side edge 12 of the cover 1 to open the cover 1 upwards, and when the convex portion 13 of the cover 1 enters the concave portion 2111 of the limiting end 211 of the base 2 and is limited by the limiting end 211, the cover 1 in the folded state stably maintains the relative position with the base 2, and then the operator can perform the wiring operation; when the operation is completed, the operator may press the cover plate 11 by force, so that the protrusion 13 leaves the recessed portion 2111 through the slope 2114 at the end wall 2112 where the limit end 211 is adjacent to the guide portion 22, and exits the sliding groove 21 from the opening end 212 along the sliding groove 21, after the periphery of the side edge 12 contacts with the periphery of the lower housing 24, the cover body 1 is covered on the base body 2, and then the first screw 3 sequentially passes through the fixing hole 111 and the fixing piece 14 on the cover plate 11, and the first screw 3 is tightened, thereby ensuring the fixed connection between the cover body 1 and the base body 2.

When the inside of the plug is operated, the cover body 1 does not need to be taken down, the wiring in the base body 2 can be achieved through turning over, the wiring can be matched with the socket after the wiring is completed, and the plug has good convenience.

In this application, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The term "plurality" means two or more unless expressly limited otherwise.

Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only.

It will be understood that the present application is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the application is limited only by the appended claims.

Claims (11)

1. A foldable device, comprising: a cover body (1) and a base body (2), wherein,

the cover body (1) comprises a cover plate (11) and a side edge (12), wherein the inner surface of the side edge (12) is provided with a convex part (13);

the base body (2) is provided with a sliding groove (21) corresponding to the protruding part (13), wherein the protruding part (13) can be accommodated in the sliding groove (21) and can slide along the sliding groove (21);

the sliding groove (21) is provided with a limiting end part (211), the limiting end part (211) comprises a concave part (2111) and an end wall (2112) positioned around the concave part (2111), and when the convex part (13) enters the concave part (2111) and is limited by the limiting end part (211), the cover body (1) is in a turnover state relative to the base body (2).

2. The device according to claim 1, wherein the cross-sectional shape of the recessed portion (2111) of the restraining end (211) is at least partially complementary to the cross-sectional shape of the protrusion (13) to limit rotation of the protrusion (13) in the restraining end (211).

3. A device according to claim 2, wherein the end wall (2112) of the retaining end portion (211) has a boss (2113) projecting towards the recess (2111), and the projection (13) has a recess (131), the recess (131) being able to receive at least part of the boss (2113).

4. A device according to claim 3, characterised in that the projection (13) comprises a hemisphere (132) with the recess (131).

5. The foldable device according to claim 1, wherein the slide groove (21) further has a guide portion (22) adjacent to the stopper end portion (211), the depth of the guide portion (22) gradually decreases in a direction approaching the stopper end portion (211), and the protrusion portion (13) enters the stopper end portion (211) via the guide portion (22).

6. The foldable device according to claim 5, wherein the end wall (2112) of the stopper end portion (211) adjacent to the guide portion (22) has a slope (2114), the depth of the slope (2114) is gradually increased in a direction away from the guide portion (22), and the protrusion (13) enters or leaves the recess portion (2111) via the slope (2114).

7. The foldable device according to claim 1, wherein the axis of the sliding groove (21) is a convex arc toward the side of the opening when the foldable device is folded.

8. The foldable device according to claim 1, wherein the sliding groove (21) has an open end (212) opposite to the stopper end (211), wherein the protrusion (13) is located outside the sliding groove (21) when the cover (1) is in the closed state close to the base (2), and the protrusion (13) slides from the open end (212) into the sliding groove (21) when the cover (1) is opened gradually away from the base (2).

9. The reversible device according to any one of claims 1-8, wherein the reversible device is a plug.

10. The folding device according to claim 9, wherein the base body (2) includes a lower case (24) and a pin base (25) fixed in the lower case (24), and the slide groove (21) is located on a side of the pin base (25).

11. The foldable device according to claim 10, wherein the latch holder (25) comprises a latch cover (251) and a latch structure (252) provided with a latch (4), the latch cover (251) covers the latch structure (252), and the sliding groove (21) is located at a side of the latch cover (251).

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