CN206302025U8 - The change-over plug for travel of safety - Google Patents

Abstract

The utility model is related to a kind of change-over plug for travel, with housing, socket, and the first plug (34) and the second plug (36) of the second standard of at least the first standard, wherein described first plug (34) and the second plug (36) can alternatively be moved to from standby position and use position, it is placed in substantially in the housing in plug described in standby position, wherein, first plug (34) is connected to being moved to it into the first driving sliding block (22) using position from standby position, and second plug is connected to being moved to it into the second driving sliding block (24) using position from standby position, it is characterized in that being provided with slide selector (44), in its first position, it discharges first plug (34), or, in its second place, it discharges the second plug (36), so that first plug or the second plug are moved to using on position.

Description

Safe travel adapter

technical field

The present utility model relates to a kind of travel conversion plug, which is also referred to as "travel converter" for short here. Using this adapter, a (domestic) standard power plug can be inserted into the power socket at the travel destination. To this end, the travel adapter requires a first standard socket and another standard power plug. In this application, more specifically, it relates to a travel adapter plug capable of being inserted into at least a first standard and a second standard electrical outlet. In addition, the power plugs of the first standard and the second standard can be used alternatively among the travel conversion plugs.

Background technique

[0002] At a time of increasing global travel and trade, more and more travel adapters or travel adapters of this type are being used. Therefore, there is a need for a small, easy-to-carry travel adapter that fits several different standard power outlets.

[0003] Chinese patent application CN 101872911A discloses a travel converter with a substantially circular housing. A power plug is placed inside the housing and can be removed from the housing. In this way, at least three different types of power plugs can be used. The desired power plug can be selected by rotating the upper housing part relative to the lower housing part. The upper housing portion has an outwardly projecting drive slider. The drive slider can be brought into engagement with the individual power plug elements. To do this, it is rotated to a position above the power plug, and when it is rotated to a position below the power plug, the power plug is removed from the housing.

[0004] The travel adapter has many uses. However, mechanically rotating the upper housing part relative to the lower housing part requires a precise housing production process to allow low resistance rotational movement and to ensure reliable engagement of the drive slider with the power plug element at various housing positions . Also, the circle itself is a limitation. In many cases, for example, a block travel adapter might be considered easier to transport. Also, on a round travel adapter, not all of the optional power plug components can be seen from a certain angle.

[0005] German patent DE 10 2011 014 920 B4 discloses another travel adapter, which is called a "universal adapter". In this travel adapter, sets of pins are provided in the outer housing. Each group of pins is connected to a control element, by means of which the pins of each group can be moved from the outside. The control element is guided on the housing by means of runners. In addition, the control element is guided using a baffle plate arranged in the outer housing. The shutter has guide rails and grooves on which the control element can pass. The rail provides an upper end position and a lower end position. The baffle is elastically prestressed so that the control element can be held firmly in the upper or lower end position. The control element and the corresponding set of pins can be released from the end position and moved upwards or downwards, since, in addition to activating the control element, a selector lever, which is also arranged outside, is also activated. Depressing the selector lever moves the shutter against the spring force. In this way, the pins of the control element can be removed from their upper or lower end positions using the control element.

In this solution, the external control element is used both to move the set of pins from the first end position (standby position) to the second end position (use position) and to lock the pins in these positions Group. A disadvantage of this is that the selector lever must also be in operation during the use of the control element to move the pin set. This prevents comfortable one-handed operation. In addition, the control part cannot move freely within the chute, since the elastically prestressed baffle plate continuously presses the control element during the movement. When the selector lever is operated, a wrong operation will also cause the two sets of pins to move into the use position, or at least towards the use position.

SUMMARY OF THE INVENTION

The purpose of this utility model is to provide a kind of improved travel converter that avoids the deficiencies in the prior art. The travel converter should be cost-effective and reliable to manufacture, easy to transport and operate, and be electrically very safe.

[0008] The travel adapter plug of the present invention has a housing, which can have various shapes. For example, in general, blocks are practical for transport. However, the operation mode of the travel adapter of the present invention is designed so that the shape of the housing can be freely selected to a large extent. It is advantageous when the housing has at least one flat face, but the operation of the invention can also be adapted to curved housing surfaces. The housing may contain one or more pieces. It has proven useful for the housing to comprise two parts, in particular a lower housing part and an upper housing part. They are removably connected to each other, for example by mechanical means, it is useful to use a screw connection.

[0009] The housing should have at least one socket. The socket is effectively disposed on the housing. The socket can have different shapes, depending on the type of power plug (hereinafter referred to as "plug") to be inserted thereon. For example, if the socket is to be fitted with a Schuko plug, the socket has a substantially cylindrical recessed portion, in addition to a female connector for receiving the Schuko plug. For other types of plugs, it is not necessary to have recesses or grooves. It is useful to provide a flat upper housing face on which a plurality of female contacts can be provided. Typically, at least two female connectors should be provided, which form a female connector pair for receiving a standard plug. In order to be able to accommodate multiple plugs of different standards, it is useful to have multiple pairs of female connectors. If the plug also has a grounding conductor, and the socket is intended to provide an opportunity for grounding, it is often necessary to provide a third female connector, or a third connector depending on the plug to be inserted.

[0010] The travel conversion plug should also have at least a first standard plug and a second standard second plug. (These plugs are also sometimes referred to as "plug-in pin sets"). The first standard plug may be, for example, an EU European plug, and the second standard plug may be a US American plug. These plugs may have two prongs, that is, they are not grounded; alternatively, they may have three prongs to provide grounding prongs. Therefore, the travel adapter of the present invention is suitable for use in more than one country.

[0011] Usefully, in general, alternative use of the first plug and the second plug is also necessary. The travel adapter may also include three or more plugs. Travel adapters with three or four plugs have proven to be very useful. At least one of the plugs (but generally all of the plugs) can be moved from a stand-by position (where the plug is substantially within the housing) to an in-use position. In the use position, the plug is fully or at least partially operable outside the housing. Frequently, when the plug is returned to the standby position, the plug can be moved completely back into the housing. It is useful that the plug can be moved back into the housing far enough that it does not interfere with other plugs.

[0012] The first plug is connected with a drive slider, and the drive slider is used to move the first plug from the standby position to the use position. The second plug is also connected to a drive slide for moving the second plug from the standby position to the use position. Therefore, the travel conversion plug has at least a first drive slider and a second drive slider. The drive sliders can be effectively designed in a button-like fashion to make them easy to move with one finger. In order to accommodate the drive slide, a sliding groove may be provided on the housing. The runners can also be connected to each other to form guide rails for the drive slide. In general, it is useful to have one chute for each drive slide, and to arrange these chutes parallel to each other.

[0013] A sliding selector may be provided on the travel conversion plug, and the sliding selector may be moved to at least a first position and a second position. In its first position, the sliding selector releases the first plug; or, in its second position, the sliding selector releases the second plug, whereby either the first plug or the second plug can be selected move to the position of use.

[0014] In this manner, the sliding selector provides the travel adapter with the added advantage of practicality. It is not uncommon to bring a travel adapter multiple times to the same destination country. It is also common in a destination country to move the required plug from the use position back to the standby position when it is not needed. It is therefore advantageous when the corresponding plug type can be adjusted on the slide selector. It is very simple to label the sliding selector, so that the destination country is clearly identifiable and can be adjusted on it. Once the slide selector is moved into position, only the corresponding plug can be moved into the use position. Usually, this means that it is only possible to move one drive slide.

[0015] Since travel adapters should always be constructed more compactly, the drive slides are usually very close to each other. Therefore, situations such as fingers that are not precisely placed on the drive slides can easily inadvertently move adjacent drive slides at the same time. However, since the present invention allows only one plug to be driven, and thus (usually) only one drive slider, a accidentally touched drive slider will not move (or at least it will not move the associated plug). This makes the operation of the travel adapter more fault tolerant.

[0016] However, providing a slide selector that only releases one plug and one actuating slider also has important safety advantages. If more than one plug is removed at the same time, current will flow through those connectors that are not used for this standard. This can damage the travel adapter and, in the worst case, the equipment connected to it, and even cause injury to the user.

[0017] The plug can be moved into the use position using the drive slider. For the safe use of travel adapters, it is important that the plug remains in the position of use even when the plug is inserted into a power outlet against pressure. In the system of the present invention, stop or locking elements may be provided to ensure that the plugs remain in the position of use and prevent them therefrom. The locking element can block at least one plug of the travel adapter; the locking element can also effectively block a plurality or all of the plugs in the use position.

[0018] Usefully, the locking element is designed as a component independent of the sliding selector. Embodiments as separate components have production advantages. The sliding selector is a component that does not have to transmit or experience large forces. However, by their very nature, the locking element must exert sufficient force to hold each standard plug in the use position. [0019] For similar reasons, it is useful when the locking element is also a component independent of the drive slide. In this case, when the locking element has at least one part which is not part of the sliding selector or drive slide, the locking element should be understood as a separate part. In general, it is useful when all parts of the locking element are designed to be independent of both parts of the slide selector and parts of the drive slide.

[0020] It is useful when the locking element (if provided) is connected to a release button, which is provided outside the housing and driven in the release direction. Such a release button allows intuitive and safe release of the locking element when moving a plug from the use position back to the standby position. Such designs are safer and more reliable than those that release the plug by actuating a slider, or a sliding selector, or even some movement of the plug itself. So that the release button cannot be actuated inadvertently, it can also be fitted with a warning indicator or designed with a warning color, such as red. The release button can be part of the housing, for example, when a part of the housing can be pressed due to suitable design. Often, it is useful to provide a recess in the housing and to provide the release button in the recess as a separate part of the housing. Usefully, the release button may be arranged opposite the sliding selector and/or the drive slider.

[0021] It is useful to elastically pre-stress (typically: spring biased) the locking element against the release direction. Resilient prestressing of the locking element allows the plug to be securely snapped into the locked state as soon as it is brought into the use position. It is also mechanically advantageous when the spring acts precisely against the release direction.

[0022] An effective embodiment of the locking element is that the locking element has at least one locking leg, and the locking leg has a sliding surface and a locking projection. Elements connected to a moved plug can slide on the sliding surface. The element can then be snapped onto the locking projection to lock the plug connected to the element.

[0023] Travel adapter plugs are useful: at least one plug of which has a sliding protrusion or is mechanically firmly connected to such a sliding protrusion, and the sliding protrusion runs on the sliding surface and is capable of running on the sliding surface. A locked state is displayed on the locking protrusion.

[0024] Also useful are travel adapter plugs whose locking mechanism has multiple locking legs, such as 2, 3 or 4 locking legs. The number of the locking legs is exactly the same as the number of the plugs. It is also useful and sufficient when the number of said locking legs is less than the number of plugs.

[0025] In the latter case in particular, when at least two plugs are each connected with a sliding projection, and both sliding projections run on the same locking leg of the locking element, it is useful. Since the two sliding protrusions run on the same locking leg, this means that the two sliding protrusions are on the same sliding surface and the same locking protrusion (on which the two sliding protrusions can exhibit locking status). Since the two plugs on the travel adapter will not be moved to the use position at the same time, the sliding protrusions will alternatively assume this locked state on the locking protrusions. However, if two sliding protrusions, such as two sliding protrusions of adjacent plugs, share a suitably sized locking leg, the number of locking legs can be reduced and the travel adapter can thus be constructed more concise.

[0026] In the context of the present invention, the sliding selector can be set to any suitable form. In general, it should mechanically allow movement of only one plug and inhibit movement of other plugs. Usefully, the slide selector acts on the drive slides, each drive slide being connected to a specific plug. It is also useful when the slide selector acts on another element connected to the plug.

[0027] The slide selector can have a slide selector body that can be placed inside the travel adapter housing. It is also useful to provide a recess in the housing which allows the sliding selector to be operated. For example, an actuation button (hereinafter also referred to as a "slide selector button") can be used through the groove. The slide selector body can also be placed outside the housing, for this purpose acting on the drive slide outside the housing, or on the inside by means of a through hole.

[0028] At least one of the plugs or all of the plugs may be connected to an engagement element which cooperates with the sliding selector to prevent movement of the plug into the use position. Usefully, the engagement element may be designed as a bump or substantially as a bump. The movement of the engagement element can be prevented by a catch element of the sliding selector, for example by a catch bar, catch projection or the like. The card protrusions are effectively arranged continuously so that the card protrusions form a comb-like blocking strip. Depending on the position of the selection element, it should also be possible not to prevent the movement of the engagement element, but to allow its passage. For this purpose, the locking element can advantageously have a plurality of grooves through which the engaging element can pass. For example, a series of protrusions and depressions may be provided on the slide selector.

[0029] It is useful when the travel adapter has a slot on the housing. The drive slides can run within these chutes. A sliding slot may also be provided on the sliding selector. These runners allow the slider to move while being guided. Thus, it represents an advantageous and cost-effective mechanical solution. Since a plurality of drive slides are usually provided on the travel adapter, it is particularly advantageous when a plurality of drive slides can be guided in the sliding groove in a simple manner. In the context of the present invention, the drive slide must only cause movement of the plug, usually upwards and downwards. The drive slide does not have to lock the plug in the use position, nor does it have to ensure that only one plug can be selected at a time. Since the drive slide in the context of the invention is only allowed to perform one function, it can be easily and reliably guided in the chute. For example, if the drive slide is spring-loaded, it becomes less useful to guide it in the chute, usually because the slide then tends to tilt and become "hook-like" Running that way, of course, there will be more resistance.

[0030] As already explained, it is advantageous when the position of the selection element can no longer be changed as soon as the plug has been moved into the use position. For this purpose, a latching element can be provided. The latching element is operatively disposed on or connected to the sliding selector. The latch element and slide selector may be an integral part or at least one connected integral part.

[0031] It is useful to have a latching element with a first functional element for cooperating with the first plug and a second functional element for cooperating with the second plug. In order to make the manufacture of the latching element simple and cost-effective, it is useful when the first functional element and the second functional element are constructed in the same way. Both the first functional element and the second functional element may be obtained from the exact same assembly or from similar assembly parts.

[0032] It is particularly useful when the latching element has fingers that can be engaged in a receiving element that is firmly connected to the housing. The functional elements can effectively be designed in the form of fingers. The latching element may also have projections or bumps instead of fingers. The receiving element may be configured, for example, as a protrusion or depression on a latch guide. The receiving element can also be configured as a groove or hole in the housing or in a component connected to the housing.

[0033] It is useful when the latch element comprises a spring element. The latching element may even be formed entirely by one spring element, for example by a flat spring (or leaf spring). The fingers of the latch element can be elastically pre-stressed using such a spring. The direction of the spring force is directed towards the receiving element on the housing. As long as all plugs are in the armed position, the springs are prevented from protruding into the corresponding receiving elements.

[0034] It is advantageous when a finger of the latching element is pressed into a groove against the spring force as soon as the plug is moved into the use position.

[0035] It is useful when the spring element of the latching element elastically preloads its fingers in the direction of the receiving element for receiving the fingers and connected to the housing. Afterwards, as long as the plug is in the standby position, the engagement of the fingers in the corresponding receiving element can be effectively prevented by means of a firm connection with the plug. This is useful, for example, when the part that drives the slide does this. For example, the drive slide may be connected to the sliding surface which slides on the fingers when the drive slide is moved to the use position, but which slides over the fingers when the drive slide is moved into the use position When in position, the sliding surface releases the finger so that the finger assigned to the drive slide falls into the groove assigned to the finger.

[0036] Other features and advantages of the present invention can be obtained from the accompanying drawings and related descriptions below. The features of the present invention will be described with reference to the drawings and their related descriptions. However, these features may also be included in other combinations of the present subject matter. Accordingly, each feature disclosed should also be understood to be disclosed in a technically reasonable combination with other features. Some of the illustrations are slightly simplified and schematic.

Description of drawings

1 is a perspective view of a travel adapter in an exemplary embodiment of the present invention;

[0038] FIG. 2 is a perspective view from the same perspective of the travel adapter in this exemplary embodiment, with the Euro plug on the travel adapter moved to the use position;

3 shows this exemplary embodiment from another perspective, with the Euro plug moved to the use position;

4 shows this exemplary embodiment from below;

5 is a perspective view of selected cooperating components;

Figure 6 is a side view of the components in Figure 5;

Fig. 7 is another side view of the component in Fig. 5;

[0044] FIG. 8 shows the cooperating components of a larger constituency from the perspective of FIG. 6;

9 is a perspective view of two other components working together;

Figure 10 is another perspective view of the two cooperating components;

11 is a view of selected cooperating components;

12 is a perspective view of two cooperating components;

13 is a perspective view of two other components working together;

[0050] FIG. 14 is a side view of the components in FIG. 13 .

Description of reference numerals:

10-travel adapter/travel adapter plug;

12-upper housing part; 14-lower housing part

16-socket; 18-female connector;

18A-UK British female connector pair; 1SB-AUS Australian female connector pair;

18C-US American female connector pair; 18D-UK female connector of British grounding pin;

[0057] 20-the operation button of the sliding selector; 22-the first drive slider;

[0058] 24-the second drive slider; 26-the third drive slider;

[0059] 28- the fourth drive slider;

30-European plug; 32-plug body;

34-contact pin; 36-contact pin;

36A-UK British contact pin; 36B-AUS Australian contact pin;

36C-US American contact pin; 36D-UK British ground terminal;

38-fuse insert; 40-release button;

42-chute; 44-slide selector body/slide selector

46-accommodating the notch of the release button; 48-jamming;

50-guide arm; 52-engagement element/engagement lug;

54-groove; 56-latching element;

58-finger; 60-pressure-bearing surface;

62-locking guide groove; 64-groove;

66 - locking element; 68 - frame;

[0072] 70 - locking legs; 72 - sliding protrusions;

[0073] 74-sliding surface; 76-locking projections.

detailed description

Fig. 1 is the perspective view of the travel conversion plug of the present utility model, and the travel conversion plug in the figure is in a standby state, but is not yet in a use position. Rather, all the plugs are in the standby position, ie all within the housing.

[0075] The most basic components of the travel adapter 10 are first described below. The travel adapter has a housing consisting of an upper housing part 12 and a lower housing part 14. The socket 16 is located on top of the travel adapter so that it is located in the area of the upper housing portion 12. The socket 16 has a plurality of female contacts 18 . A slide selection button 20 is provided on the front face of the travel adapter 10 . The individual drive sliders can be selected and released by sliding the selection buttons 20 . Below the sliding selection button 20 are disposed a first driving slider 22, a second driving slider 24, a third driving slider 26 and a fourth driving slider 28.

[0076] FIG. 2 shows the travel adapter from the same perspective. However, in this travel adapter, one of the plugs has been moved to the use position. Therefore, the slide selection button 20 is located at the left end of its slide path. In this position, the left drive slide, i.e. the first drive slide 22, is released and the drive slide 22 is moved from the upper position to the lower position. Thereby, the Euro plug 30 protrudes downward. The European-style plug has a plug body 32 and a first contact pin 34A and a second contact pin 34B. In this way, the travel adapter 10 can be plugged into a power socket conforming to European standards. The female connector pair on top of the travel adapter plug can then be used, allowing plugs that do not conform to European standards to be inserted. Specifically, the female pairs are UK female pair 18A, AUS female pair 18B, das US American female pair 18C and connector 18D for UK ground pins.

[0077] FIG. 3 shows the same plug from another perspective. The plug is in the same position as in Figure 2, ie the Euro plug has been moved to the use position. It can be seen from the bottom of the housing that more contact pins 36 (ie, other standard contact pins) are also provided. In addition, a fuse insert 38 is also provided on the bottom. The insert is closed to the outside by a visible cover, which allows for example a coin to be used to turn the slot in the cover to remove the cover and replace the fuse.

[0078] Furthermore, a release button 40 (not visible in the front view) is provided on the side of the housing. The release button is received in the housing recess. Rather, notches are provided on both the upper housing portion 12 and the lower housing portion 14, and these together surround the release button 40. Depressing the release button returns the pushed down plug (the Euro plug 30 in this case) into the housing. However, when the release button is not actuated, the plug will not be pressed back into the housing so that this does not happen inadvertently when the plug is inserted into a power outlet.

[0079] Figure 4 shows the bottom of the same travel adapter, from which other details can be seen more precisely, and will therefore be detailed in conjunction with this figure. The bottom view shows that the drive sliders 22-28 and the slider selection button 20 do not protrude far beyond the lateral housing surface. The engineering design of the present invention allows for a compact and easy-to-use arrangement in which the drive slides are located in close proximity to each other. The slide selection buttons 20 are slightly higher than the drive sliders and therefore protrude slightly beyond them.

The contact pins 34 of the Euro-type plug are guided on the plug body 32, and the contact pins of other standard plugs are led out from the bottom of the housing without providing an additional plug body. Every two contact pins (that is, a pair of contact pins) are used to plug into power sockets of different national standards. Contact pin pair 36A is used in the United Kingdom, hereinafter also referred to as UK British contact pin; contact pin pair 36B is used in Australia, hereinafter also referred to as AUS Australian contact pin pair; contact pin pair 36C is used in the United States, hereinafter also referred to as Known as US-style contact pin pair. A ground terminal 36D is also provided, which is used in the United Kingdom, so it is also called a UK British ground terminal, and grounding is possible using this connector. Usually, however, such a connection can also be provided when no ground terminal is available. In that case, this connector is the opening pin for plugging into a UK socket-outlet, which makes it possible to plug in the other two connectors.

[0081] It can be seen that the release button 40 is just opposite to the drive slider and the sliding selection button. In the context of the present invention, it is useful to have the sliding selection button and all drive sliders on one housing side. For safe and intuitive operation, it is also generally useful to locate the release button 40 opposite it.

FIG. 5 shows selected cooperating components of the travel adapter in the exemplary embodiment in a perspective view showing the lower housing portion 14 . The plug body 32 belonging to the Euro-type plug is placed under the housing. Corresponding to the position of the plug body 32, the first drive slider 22 is shown in the lower position. On its front side, the housing has a chute 42 . It can be seen from the figure that there are four adjacently arranged runners 42, each of which can receive a drive slide. However, for ease of understanding, only the first drive slider 22 is depicted. It can be seen that the sliding selector body 44 is located above the sliding slot, and the recess 46 for accommodating the release button is opposite the sliding selector body 44.

[0083] Furthermore, the slide selector body is shown in its position when used in a complete travel adapter, but the components that hold it in this position are not depicted. This simplified depiction is also for ease of understanding. It is useful to locate the slide selector body 44 above the drive slider, i.e. opposite the bottom of the housing from which the contact feet can be led out and moved to the position of use.

[0084] FIG. 6 basically shows the components depicted in FIG. 5 from a side perspective, again depicting the lower housing part 14 and the sliding selector body 44. The slide selector body 44 is again shown in the position where it is held by other components (not shown). Also shown is a second drive slide 24 adjacent to the first drive slide 22 . The first drive slide 22 is shown in the lower position, i.e. the position corresponding to the use position of the plug, and the second drive slide 24 is shown in the upper position, i.e. the position corresponding to the standby position.

In this view, it can be seen that the backside of the slide selector body 44, which faces the interior of the travel adapter, has snap projections 48. It can also be seen that the first drive slider is connected to the guide arm 50 . The guide arm 50 may additionally be supported by components not shown, while ensuring that the position and movement of the drive slide 22 is not limited only by the chute 42. In general, however, it is sufficient to merely guide the drive slide within the chute. The upper end of the guide arm 50 has a coupling bump 52 .

[0086] Thereby, the engaging projection 52 can be engaged with the locking projection 48, so that the downward movement of the second driving slider 24 is restrained.

[0087] In another side view, FIG. 7 shows the cooperation of the known components of FIGS. 5 and 6 . In Figure 7, the lower housing portion 14 and slide selector body 44 can again be seen in their proper position in the complete travel adapter. The back of the slide selector body 44 engages the guide arm 50 of the second drive slide. On its back, the sliding selector body has a plurality of snap-on protrusions, snap-on protrusions 48A, 48B, 48C, 48D and 48E. Channels in the form of grooves (grooves 54A, 54B, 54C and 54D) are provided between each tab. Although, in the position shown in the figure, the snap projection 48C is engaged with the engagement projection of the guide arm 50, when the slide selector body is in another position, the engagement projection of the guide arm 50 is no longer there Engage with snap tabs. Conversely, removing the slide selector body 44 would place the guide arm's catch 48 over a groove. From this position, the guide arm, and thus the entire drive slide, can be moved downwards towards the use position.

[0088] FIG. 8 is a side view similar to FIG. 6, but in this figure, an additional component is depicted. Again depicted are the lower housing portion 14, the second drive slide 24 and the slide selector body 44. As previously stated, the drive slide 24 (like the other drive slides) has a guide arm 50. At its ends, the guide arm 50 has engagement lugs 52 which can be brought into engagement with the catch lugs 48 .

[0089] In addition to the components already shown in FIGS. 6 and 7, a latch element 56 is also depicted in this view. The latch element 56 is substantially in the shape of a leaf spring which fits inside the slide selector body 44 (the side facing the guide arm). At its upper end, the latching element 56 has fingers 58 protruding from the top of the sliding selector body 44 . The latch element also has a pressure bearing surface 60, which also includes an elevation.

[0090] The operation of the latch element 56 is as follows. When the drive slide 24 is in the upper position shown, the engagement lugs 52 apply pressure to the bearing surface 60 . When the slide selector body 44 is in place, as soon as the drive slider is moved downward, the engagement lug 52 (or, if necessary, another member of the guide arm 50 ) no longer presses against the bearing surface 60 . The fingers 58 are resiliently pre-stressed to move towards the center of the travel adapter (i.e. to the left in Figure 8) due to the spring force. [0091] Once pressure is no longer exerted on the bearing surface 60, the spring force will take effect and the fingers 58 will move into the latched position. In this latched position, the fingers may engage an element that is securely positioned in connection with the housing, which element may generally be described as a finger-receiving element. This causes the slide selector body 44 to also be held in a fixed position relative to the housing.

[0092] FIG. 9 is a perspective view of the slide selector body 44 and the latch element 56 (or, more precisely, its fingers 58). The latching element 56 may be manufactured, for example, from a curved leaf spring. The upper end of the slide selector body 44 has a notch. The fingers 58 of the latch element 56 can be inserted through the four notches shown. First, this ensures that the latching element 56 and the slide selector body 44 are well connected to each other also in the upper region; It is possible to move back and forth between the locked position and the selected position (or the standby position).

[0093] Figure 10 is a perspective view of the slide selector body 44 and latch element 56 from the other direction, from which again the fingers 58 and how they function can be easily seen. The latch element 56 should be mechanically firmly connected to the slide selector body 44 . To this end, the slide selector body 44 may have grooves that allow for an easy insertion or snap-fit connection between the slide selector body 44 and the latch member 56 . This part of the content can be seen from the lower part of the slide selector body 44 .

[0094] FIG. 11 illustrates the cooperative relationship between the latch element 56 and the upper housing portion 12 in a bottom view. The view direction is from the lower housing portion 14 to the bottom of the upper housing portion 12 so that the female connector 18 is visible. The latching element 56 abuts the front housing wall; in a functional travel adapter, it is also held by the sliding selector body 44, however, the sliding selector body 44 is not shown here for visual simplicity.

[0095] The fingers 58A, 58B, 58C and 58D of the latch element 56 fit against the upper side of the housing. All fingers are shown in the standby position. As soon as the drive slide and corresponding plug associated with the finger is moved into the use position, the finger is moved into the latched position. In order to lock the finger in the latched position, a locking guide groove 62 is provided on the underside of the housing. The locking guide groove has a groove. In the embodiment shown here, the grooves are separated from adjacent grooves by rods. The locking guide groove 62 has four grooves: groove 64A, groove 64B, groove 64C and groove 64D.

[0096] Other different forms of locking guide grooves may also be useful; generally, the locking guide grooves should have finger receiving elements that are securely positioned relative to the housing. Fingers 58—enter their associated recesses 64, and latch element 56 assumes a secure position relative to the housing. Thereby, the latching element can no longer move with the sliding selector body 44; this upward and downward movement in the direction of view is blocked.

[0097] FIG. 12 is a perspective view of two other cooperating components of the travel adapter. Both components are also shown in their "natural" position, i.e. the position they would appear in a complete travel adapter. Shown are the lower housing portion 14 and the locking element 66 . In a known manner, the lower housing part has four runners 42 parallel to each other. The locking element 66 has a known release button 40 . The locking element 66 also has a frame 68 . Frame 68 is fitted with retaining clips (not described in detail) that allow locking element 66 to be connected to other components of the travel adapter. The locking element 66 also has three locking legs: a first locking leg 70A, a second locking leg 70B, and a third locking leg 70C.

[0098] Figure 13 illustrates how the locking legs function. In this figure, the locking element 66 is not shown with the lower housing portion 14, but is shown with the plug body 32 for a Euro-style plug. The locking element 66 also cooperates with other plug bodies and contacts, but the function of the locking legs will only be described here using the example of a Euro-type plug and corresponding plug body 32. The plug body is firmly connected with the first drive slider 22 , and the first drive slider 22 has a guide arm 50 . The plug body 32 is also connected to the sliding projection 72 . The sliding protrusion can slide along the first locking leg 70A and assume a locked state at the lower end of the first locking leg 70A.

[0099] Figure 14 shows the components of Figure 13, but this time in a side view from which the exact functioning can be better seen. In this view, the first locking leg 70A (like the other locking legs) can be seen to have a sliding surface 74 and locking projections 76 . The sliding protrusion 72 of the plug body 32 can slide on the sliding surface 74 . To initiate the sliding, the locking element 66 can be moved laterally, i.e. in the release direction defined by the orientation of the release button 40 (right to left in the figure). The locking element 66 is elastically prestressed so that the sliding projection 72 presses against the sliding surface 74 . When the plug body 32 reaches its in-use position, the sliding projections 72 reach the locking projections 76 . Since the locking element 66 is elastically prestressed (so that, in this figure, it is thus pressed to the right), the sliding projection 72 will move under the locking projection 76 and be stopped thereby. This blocking is very mechanically advantageous because the locking legs 70A are loaded in the main direction of extension, whereby the locking legs 70A need only absorb substantially compressive forces. However, by pressing the release button 40, this detent is surely released, and the plug body can be moved back to its standby position along the sliding surface 74.

[0100] In the manner described in general and more specifically in the accompanying drawings, a travel converter can be produced which is very comfortable to operate and with which few operating errors occur. Interestingly, however, the travel converter is not expensive to produce, and can be produced cheaply and reliably even in cases where greater fault tolerance must be allowed in mass production.

Claims (14)

1. A travel conversion plug (10) having a housing, a socket (16) and at least a first plug (34) of a first standard and a second plug (36) of a second standard, wherein the first plug ( 34) and a second plug (36) alternatively moveable from a stand-by position in which the plug is substantially positioned within the housing, to a use position, wherein the first plug (34) is connected for connecting it A first drive slide (22) that moves from the standby position to the use position, and the second plug is connected to a second drive slide (24) for moving it from the standby position to the use position, characterized in that: arranging There is a sliding selector (44) which releases the first plug (34) in its first position or, in its second position, releases the second plug (36) so that the first plug or The second plug is moved to the use position. 2. The travel conversion plug (10) according to claim 1, characterized in that the conversion plug is further provided with a locking element (66), which locks at least the first plug (34) or the second plug ( 36) A component that is held in the use position and designed to be independent of the sliding selector (44). 3. The travel conversion plug (10) according to claim 2, characterized in that the locking element (6) is connected to a release button (40) arranged outside the housing. 4. Travel adapter (10) according to claim 2 or 3, characterized in that the locking element (66) has at least one locking leg (70), wherein the locking leg (70) has a sliding face (74) and locking projection (76). 5. The travel adapter plug (10) according to claim 4, characterized in that at least one plug has a sliding protrusion (72) running on the sliding surface (74) and capable of A locking state is presented on the locking protrusion (76). 6. The travel adapter (10) of claim 5, wherein the locking element (66) has a plurality of locking legs (70). 7. The travel adapter (10) of claim 6, wherein the locking element (66) has 2, 3 or 4 locking legs (70). 8. The travel adapter plug (10) according to claim 6, wherein each of the at least two plugs has a sliding protrusion (72), and the two sliding protrusions are located on the locking element ( 66) on the same locking leg (70). 9. Travel adapter plug (10) according to claim 1, 2 or 3, characterized in that at least one plug is connected to an engagement element (52) cooperating with the sliding selector (20) to prevent the plug from moving into the use position. 10. The travel adapter (10) according to claim 9, characterized in that the sliding selector (20) has at least one snap protrusion (48), when the sliding selector (20) is in certain positions , the snap protrusion prevents the engagement element (52) from moving; and the sliding selector has at least one groove (54) through which the at least one engagement element (52) can pass. 11. The travel adapter (10) according to claim 1, 2 or 3, characterized in that the housing has a chute (42) for receiving the drive slider (22, 24, 26, 28) ). 12. The travel adapter plug (10) according to claim 1, characterized in that the adapter plug is further provided with a latching element (56), when the first plug (34) or the second plug (36) is After moving to the use position, the latch element (56) prevents the sliding selector (20) from moving between the first and second positions. 13. The travel adapter (10) of claim 12, wherein the latching element (56) has a first functional element for cooperating with the first plug (34) and for cooperating with all The second functional element cooperating with the second plug (36). 14. The travel adapter (10) of claim 12, wherein the latching element (56) has fingers (58) capable of engaging with the housing in the receiving element (64) to which the body is firmly connected. 15. The travel adapter (10) of any one of claims 12-14, wherein the latch element (56) comprises a spring element. 16. Travel adapter (10) according to claim 15, characterized in that the latching element (56) is aligned in the direction of a resiliently prestressed receiving element (64) connected to the housing ) fingers (58) are elastically prestressed.