Travel converter with interlocking function

Abstract

The utility model relates to the technical field of power converters, and discloses a travel converter with an interlocking function, which comprises a shell, plugs of a plurality of specifications are arranged in the shell in a telescopic manner, jacks for the plugs to partially extend out of the shell or completely retract into the shell are arranged on the shell, a rotating body is rotationally arranged in the shell, and the rotating body is connected with the shell. An avoiding structure is formed on the rotating body, the avoiding structure is used for allowing the plug to pass through and extend out of the shell when the rotating body is rotated to be aligned with any plug, and when one plug extends out, the other plugs are blocked and limited by the rotated body to stretch out and draw back. When a user mistakenly touches and pushes other plugs, the plugs can be blocked by the rotating body and cannot extend out, so that the convenience and safety of the travel converter are effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of power converter technology, and in particular to a travel converter with interlocking function. Background Technology

[0002] Chinese Patent No. CN218415271U discloses a travel plug and socket adapter, including a housing. Several plugs of various specifications are telescopically arranged inside the housing. The housing has plug holes that correspond one-to-one with each type of plug and allow the plug to extend partially or retract completely. A lever is provided on the plug that extends laterally relative to its telescopic direction. The housing has clearance holes for the lever to pass through and move with the extension and retraction of the plug.

[0003] The aforementioned adapter incorporates plugs of various international standards and utilizes a telescopic function to store the plugs within the housing, improving space utilization. Its compact size makes it convenient to carry and use during travel. However, this adapter has a drawback: even when one plug is extended, the remaining plugs can still extend beyond the housing without restriction. Furthermore, to maximize its compactness and portability, the distance between the levers is designed to be small to reduce the housing's volume. This means that when users extend the desired plug, adjacent plugs are easily pushed out as well. To properly insert the adapter into the socket and reduce the risk of electric shock, unnecessary plugs must be pushed back into the housing for storage. Therefore, existing travel adapters are inconvenient to use. Utility Model Content

[0004] To address the inconvenience caused by the multiple plugs on existing travel adapters extending simultaneously due to accidental operation, the purpose of this invention is to provide a travel adapter with an interlocking function.

[0005] To solve the above-mentioned technical problems, the present invention provides a solution through the following technical method:

[0006] A travel adapter with interlocking function includes a housing, in which several plugs of various sizes are telescopically arranged. The housing has a socket for the plugs to partially extend out of the housing or retract completely into the housing. A rotating body is rotatably arranged inside the housing. The rotating body has a clearance structure that allows the plug to pass through and extend out of the housing when it is rotated to be aligned with any of the plugs. When one plug extends, the extension and retraction of the other plugs is blocked by the rotating body.

[0007] By adopting the above solution, the rotation of the rotating body aligns the avoidance structure with the plug, ensuring that only one plug can extend out of the housing at the same time. This reduces the risk of electric shock caused by multiple plugs extending simultaneously due to misoperation, and improves the safety and convenience of the travel adapter.

[0008] Preferably, the avoidance structure includes avoidance notches spaced circumferentially around the rotating body and the number of notches being the same as the number of plugs. When one of the avoidance notches is aligned with a plug, the remaining avoidance notches are staggered with their corresponding plugs.

[0009] Using the above scheme, the clearance notch is distributed circumferentially around the rotating body, resulting in a compact structure. When the rotating body rotates, it accurately aligns with the target plug and automatically blocks other plugs, achieving interlocking. Furthermore, when the plug extends, the clearance notch is restricted by the plug and cannot rotate freely, thus achieving self-locking during use and reducing the possibility of misoperation.

[0010] Preferably, the rotating body has a guide engagement structure that causes the rotating body to rotate when the plug is extended and is pushed by the plug. When the rotating body rotates to one of the clearance notches and aligns with one of the plugs, the plug extends and engages with the side wall of the clearance notch to restrict the rotation of the rotating body.

[0011] Using the above solution, the guiding and mating structure in this solution uses the contact and mutual pushing action between the plug and the rotating body during the extension process to drive the rotating body to rotate. This eliminates the need for an additional rotating body structure in the design of the travel converter. During operation, the user only needs to push the previously exposed plug back into the socket and then push out the required plug to achieve linkage self-locking without additional operation, which can improve the user experience.

[0012] Preferably, the guide mating structure includes a first guide slope that is inclinedly disposed on the side wall of the clearance notch and abuts against the end of the plug.

[0013] Preferably, the end of the plug is formed with a slope or curved surface that serves as a transition when the plug abuts against the first guide slope.

[0014] Using the above solution, when the plug in this solution is pushed outward, the interaction between the inclined or curved surface at the end of the plug and the first guide inclined surface on the rotating body drives the rotating body to rotate until the plug is aligned with the corresponding clearance notch on the rotating body, and then the plug can be pushed out of the housing.

[0015] Preferably, a limiting groove is formed on a portion of the plug to allow partial insertion and limiting of the rotating body when the clearance notch is misaligned with the plug. The guide mating structure includes a second guide slope formed on the portion of the rotating body that inserts into the limiting groove and abuts against the side wall of the limiting groove.

[0016] Preferably, the sidewall of the limiting groove has a chamfer or rounding that serves as a transition when its opening abuts against the second guide slope.

[0017] Using the above solution, when the plug in this solution is pushed outward, the interaction between the guide or rounded corner of the limiting groove and the second guide slope on the rotating body drives the rotating body to rotate until the rotating body is completely separated from the limiting groove. At this time, the plug is aligned with the corresponding clearance notch on the rotating body, and then the plug can be pushed out of the housing.

[0018] Preferably, the housing has a protruding shaft, the rotating body is rotatably sleeved on the shaft, and there is rotational damping between the shaft and the rotating body.

[0019] Using the above solution, when all plugs are in the retracted state, the rotation of the rotating body is almost unimpeded. In order to reduce the situation where the rotating body swings freely out of the specific limit range and causes the plugs to jam, this solution sets rotational damping between the shaft and the rotating body. The rotating body must overcome the damping to rotate, thus maintaining the stability of the locked state.

[0020] As a preferred option, the plugs include Chinese standard plugs, British standard plugs, American standard plugs, and European standard plugs.

[0021] Preferably, the pins for connecting the grounding wire on all plugs should be oriented in the same direction.

[0022] With the above solution, the pins of each plug connected to the ground wire are all facing upwards. This ensures that the travel adapter can always be in an upright position during use. This usage method is more in line with people's usual usage habits and optimizes the user experience.

[0023] This utility model has significant technical effects due to the adoption of the above technical solutions: the rotation of the rotating body makes the avoidance structure aligned with the plug, ensuring that only one plug can extend out of the housing at the same time, reducing the risk of electric shock caused by multiple plugs extending at the same time due to misoperation, improving the safety and convenience of the travel adapter, and when the plug is extended, the avoidance notch is restricted by the plug and cannot rotate freely, achieving self-locking during use and reducing the possibility of misoperation. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the external structure of a travel converter with interlocking function according to this embodiment;

[0025] Figure 2 This is a schematic diagram of the disassembled state of a travel converter with interlocking function according to this embodiment;

[0026] Figure 3 This is a schematic diagram of the internal state of a travel converter with interlocking function in this embodiment;

[0027] Figure 4 yes Figure 3 A magnified view of a portion of A in the image;

[0028] Figure 5 This is a schematic diagram of the internal structure of a European standard plug in a travel converter with interlocking function in this embodiment when it is extended;

[0029] Figure 6 This is a schematic diagram of the internal structure of a European standard plug in a travel converter with interlocking function in this embodiment when it is extended;

[0030] Figure 7 This is a schematic diagram of the internal structure of a British standard plug in a travel converter with interlocking function in this embodiment when it is extended;

[0031] Figure 8 This is a schematic diagram of the internal structure of a British standard plug in a travel converter with interlocking function in this embodiment when it is extended;

[0032] Figure 9 This is a schematic diagram of the internal structure of a standard plug in a travel converter with interlocking function in this embodiment when it is extended;

[0033] Figure 10 This is a schematic diagram of the internal structure of a standard plug in a travel converter with interlocking function in this embodiment when it is extended;

[0034] Figure 11 This is a schematic diagram of the internal structure of a US standard plug in a travel adapter with interlocking function in this embodiment when it is extended;

[0035] Figure 12 This is a schematic diagram of the internal structure of a US standard plug in a travel converter with interlocking function in this embodiment when it is extended.

[0036] The parts referred to by the numbers in the above attached figures are as follows: 1. Housing; 101. Limiting block; 2. Plug; 201. Chinese standard plug; 202. British standard plug; 203. American standard plug; 204. European standard plug; 3. Socket; 4. Rotating body; 5. Clearance notch; 501. First clearance notch; 502. Second clearance notch; 503. Third clearance notch; 504. Fourth clearance notch; 6. First guide slope; 7. Limiting groove; 8. Second guide slope; 9. Chamfer; 10. Shaft; 11. Lever; 12. Socket. Detailed Implementation

[0037] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0038] Example

[0039] A travel converter with interlocking function, according to Figure 1As shown, the device includes a housing 1, within which several types of plugs 2 are telescopically arranged. The housing 1 has sockets 3 for the plugs 2 to partially extend outside the housing 1 or retract completely inside. A socket 12 is located on the side of the housing 1 opposite to the sockets 3. In this embodiment, the plugs 2 include Chinese standard plugs 201, British standard plugs 202, American standard plugs 203, and European standard plugs 204. A lever 11 protruding from the housing 1 is connected to the plugs 2. By moving the lever 11, the plugs 2 are driven to extend and retract relative to the housing 1. The socket 12 is an Israeli socket 12. The above is prior art and will not be described further in this embodiment.

[0040] The improvement in this embodiment is that, according to Figure 2 , 3 As shown in Figure 4, a rotating body 4 is rotatably disposed inside the housing 1. In this embodiment, a shaft 10 protrudes from the housing 1, and the rotating body 4 is rotatably sleeved on the shaft 10. There is rotational damping between the shaft 10 and the rotating body 4. The shaft 10 and the rotating body 4 are assembled using a slight interference fit, so that the rotating body 4 needs to overcome a certain resistance when rotating. The rotating body 4 has a clearance structure formed on it, which allows any plug 2 to pass through and extend out of the housing 1 when it is rotated to align with it. When one plug 2 extends, the extension and retraction of the other plugs 2 are blocked by the rotating body 4. The clearance structure includes clearance notches 5 that are spaced apart around the rotating body 4 in a number that is the same as the number of plugs 2. In this embodiment, the clearance notches 5 include a first clearance notch 501 corresponding to the national standard plug 201, a second clearance notch 502 corresponding to the British standard plug 202, a third clearance notch 503 corresponding to the American standard plug 203, and a fourth clearance notch 504 corresponding to the European standard plug 204. Figure 5 , 7 As shown in Figures 9 and 11, when one of the clearance notches 5 is aligned with the plug 2, the other clearance notches 5 are misaligned with their corresponding plugs 2.

[0041] The rotating body 4 has a guide structure that allows it to rotate when the plug 2 extends, due to the pushing effect of the plug 2. Figure 4 , 6 As shown, the guide mating structure includes a first guide slope 6 that is inclinedly disposed at the side wall of the clearance notch 5 and abuts against the end of the plug 2. In this embodiment, the first guide slope 6 is disposed at the first clearance notch 501, the second clearance notch 502 and the third clearance notch 503 respectively. The end of the plug 2 is formed with a curved surface that plays a transition role when the plug 2 abuts against the first guide slope 6.

[0042] Part of the plug 2 has a limiting groove 7 formed on it, which allows the rotating body 4 to be partially inserted and limited when the clearance notch 5 is misaligned with the plug 2. Figure 4As shown, in this embodiment, the limiting groove 7 is formed on the outer wall of the European standard plug 204. The guiding and mating structure includes a second guide slope 8 formed on the part of the rotating body 4 that is inserted into the limiting groove 7 and abuts against the side wall of the limiting groove 7. A chamfer 9 is formed on the side wall of the limiting groove 7 to play a transition role when its groove opening abuts against the second guide slope 8.

[0043] according to Figure 3 , 4 As shown, the housing 1 is provided with a limiting block 101 for limiting the rotation of the rotating body 4 to the sides to exceed the limit position. Since there is a large rotation gap between the fourth limiting notch and the European standard plug 204 in this embodiment, the limiting block 101 can effectively prevent the rotating body 4 from rotating excessively.

[0044] according to Figure 1 As shown, the orientation of the pins connected to the grounding wire on all plugs 2 is consistent.

[0045] Based on the above structure, refer to Figures 1-12 It can be seen that the method of using a travel converter with interlocking function in this embodiment is as follows:

[0046] In the initial state of the travel converter, no plug 2 is extended. After the user selects the desired plug 2, he / she moves the lever 11 to push the plug 2 out. During this process, the plug 2 drives the rotating body 4 to rotate by the interaction with the guide mating structure, so that the corresponding clearance notch 5 of the plug 2 rotates to the aligned state, and then smoothly extends out of the housing 1. At this time, the rotating body 4 has blocked the extension path of other plugs 2, completing the interlock. At the same time, the rotation of the rotating body 4 is blocked by the extended plug 2 and cannot rotate freely, thus achieving self-locking.

[0047] When it is necessary to replace the plug 2, the user needs to press the original protruding plug 2 back into the housing 1, unlock the rotating body 4, and then push the new plug 2 out of the housing 1. The movement process is the same as the above process.

[0048] Based on the above description, it can be seen that the travel converter with interlocking function in this embodiment ensures that only one plug can extend outside the housing 1 at the same time, reducing the risk of electric shock caused by multiple plugs extending simultaneously due to misoperation, improving the safety and convenience of the travel converter. Moreover, during operation, the user only needs to push the previously exposed plug back into the socket 3 and then push out the required plug to achieve linkage self-locking without additional operation, which can improve the user experience.

[0049] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A travel adapter with interlocking function, comprising a housing (1), wherein a plurality of plugs (2) of various specifications are telescopically disposed within the housing (1), and the housing (1) has a socket (3) for the plugs (2) to partially extend outside the housing (1) or be completely retracted into the housing (1), characterized in that: A rotating body (4) is rotatably disposed inside the housing (1). The rotating body (4) has a clearance structure that allows the plug (2) to pass through and extend out of the housing (1) when it is rotated to align with any of the plugs (2). When one plug (2) extends out, the extension and retraction of the other plugs (2) is blocked by the rotating body (4).

2. A travel converter with interlocking function according to claim 1, characterized in that: The avoidance structure includes avoidance notches (5) that are circumferentially spaced around the rotating body (4) and whose number is the same as the number of plugs (2). When one of the avoidance notches (5) is aligned with the plug (2), the remaining avoidance notches (5) are staggered with their corresponding plugs (2).

3. A travel converter with interlocking function according to claim 2, characterized in that: The rotating body (4) has a guide engagement structure that causes the rotating body (4) to rotate when the plug (2) is extended and is pushed by the plug (2). When the rotating body (4) rotates to one of the clearance notches (5) and aligns with one of the plugs (2), the plug (2) extends and engages with the side wall of the clearance notch (5) to restrict the rotation of the rotating body (4).

4. A travel converter with interlocking function according to claim 3, characterized in that: The guide mating structure includes a first guide slope (6) that is inclinedly disposed on the side wall of the clearance notch (5) and abuts against the end of the plug (2).

5. A travel converter with interlocking function according to claim 4, characterized in that: The end of the plug (2) is formed with a slope or curved surface that serves as a transition when the plug (2) abuts against the first guide slope (6).

6. A travel converter with interlocking function according to claim 3, characterized in that: A limiting groove (7) is formed on part of the plug (2) for partial insertion and limiting of the rotating body (4) when the clearance notch (5) is misaligned with the plug (2). The guide fit structure includes a second guide slope (8) formed on the part of the rotating body (4) that abuts against the side wall of the limiting groove (7).

7. A travel converter with interlocking function according to claim 6, characterized in that: The sidewall of the limiting groove (7) has a chamfer (9) or rounding that serves as a transition when its opening abuts against the second guide slope (8).

8. A travel converter with interlocking function according to claim 1, characterized in that: The housing (1) has a protruding shaft (10), and the rotating body (4) is rotatably sleeved on the shaft (10). There is rotational damping between the shaft (10) and the rotating body (4).

9. A travel converter with interlocking function according to any one of claims 1 to 8, characterized in that: The plugs (2) include Chinese standard plugs (201), British standard plugs (202), American standard plugs (203) and European standard plugs (204).

10. A travel converter with interlocking function according to claim 9, characterized in that: The orientation of the pins connected to the grounding wire on all plugs (2) is consistent.

Images