One-way telescopic mechanism and data line

Abstract

This utility model discloses a one-way telescopic mechanism and a data cable. The one-way telescopic mechanism includes a rotating part and a fixed part, and a rotating shaft disposed between the rotating part and the fixed part. The rotating part includes a rotating plate and a first circuit board disposed on the rotating plate. The first circuit board has at least one set of mounting holes, and each set of mounting holes has a conductive spring. The mounting end of the conductive spring is connected to the first circuit board to form an electrical path. The fixed part includes a housing and a second circuit board disposed on the housing. The second circuit board has a conductive sheet. During the rotation of the rotating part and the fixed part, the conductive sheet and the conductive spring are in continuous contact, so that an electrical path is formed between the first circuit board and the second circuit board. Because the data cable is telescopic in one direction, it avoids the need for equal tension at both ends of the data cable when it is telescopic in both directions, which could easily lead to the inability to telescopically extend or retract. It also avoids jamming when retracting or extending, improving the user experience of using the telescopic data cable.

Description

Technical Field

[0001] This utility model relates to the field of telescopic mechanism technology, and in particular to a unidirectional telescopic mechanism and data cable for realizing electrical signal connection. Background Technology

[0002] Different electronic device manufacturers use different interface standards. For example, mobile terminals have various charging / data interfaces, including Lightning, Micro-USB, and Type-C. To improve the efficiency and versatility of data cables, some cables now use two different interface standards at one or both ends, making them compatible with different devices.

[0003] Most existing retractable data cables are bidirectional, which can improve the efficiency of retraction. However, when retracting in both directions, the tension applied to both ends of the data cable must be the same. Otherwise, it is easy for the cable to become stuck and unable to extend, resulting in a poor user experience when using the retractable data cable. Utility Model Content

[0004] The main technical problem solved by this utility model is to provide a one-way telescopic mechanism and a data cable. The one-way telescopic mechanism can avoid jamming when the data cable is extended or retracted in both directions, thereby improving the user experience.

[0005] To address the aforementioned problems, this utility model provides a one-way telescopic mechanism. The one-way telescopic mechanism includes a rotating part and a fixed part, as well as a rotating shaft disposed between the rotating part and the fixed part. The rotating part includes a rotating plate and a first circuit board disposed on the rotating plate. The first circuit board has at least one set of mounting holes, and each set of mounting holes has a conductive spring. The mounting end of the conductive spring is connected to the first circuit board to form an electrical path. The fixed part includes a housing and a second circuit board disposed on the housing. The second circuit board has a conductive sheet. During the rotation of the rotating part and the fixed part, the conductive sheet and the conductive spring are in continuous contact, thus forming an electrical path between the first circuit board and the second circuit board.

[0006] In one embodiment, the second circuit board has a conductive area electrically connected to the first circuit board and a transfer area connecting external electricity to the conductive area. The conductive area has a through hole for the rotating shaft to pass through, and the transfer area and the conductive area are located on two different surfaces of the second circuit board.

[0007] In one embodiment, the mounting holes include three sets, which are located in different directions, and each set of mounting holes is distributed at a 120-degree angle with the pivot as the center.

[0008] In one embodiment, the first circuit board further includes an electrical transfer area electrically connected to a conductive spring contact, the electrical transfer area being located in a rotating plate through hole on the rotating plate.

[0009] In one embodiment, the rotating plate is provided with a first mounting groove for fixing a first circuit board; the housing is provided with a second mounting groove for mounting a second circuit board.

[0010] In one embodiment, the one-way telescopic mechanism further includes a retraction assembly for retracting the rotating part and the fixed part, the retraction assembly including a reset spring installed between the rotating plate and the housing.

[0011] In one embodiment, the unidirectional telescopic mechanism further includes a locking assembly for locking the retraction. The locking assembly includes a rotatable lever disposed between the housing and the rotating plate and a guide groove structure disposed on the rotating plate. The guide groove structure includes an inner annular guide groove and an outer annular guide groove, with a communicating opening between the two annular guide grooves. The opening has a guide block that allows the lever to switch between the annular guide grooves. When the rotating plate rotates in the extension direction, one end of the lever moves along a guide groove. When the rotating plate rotates and the lever is located at the tail of the guide block, the lever engages with the guide block to stop the rotating plate from rotating. When it is necessary to rotate in the extension direction again, the lever leaves the guide block. The lever is subjected to a force when rotating rapidly, and the lever rotates along the annular guide groove until it returns to its original position.

[0012] In one embodiment, the guide block includes a guide end and a locking end, wherein the guide end is located in the annular inner guide groove, which divides the annular inner guide groove into a left guide groove and a right guide groove. The right guide groove is connected to the annular outer guide groove, and the left guide groove is connected to the annular inner guide groove. The locking end is provided with a connecting groove connecting the annular inner guide groove and the annular guide groove, and the sidewall of the connecting groove forms a groove in the guide block.

[0013] In one embodiment, the rotating plate has a fixing groove at the free end of the conductive spring sheet that communicates with the mounting hole.

[0014] In one embodiment, the rotating plate is provided with a first mounting groove for fixing the first circuit board; the housing is provided with a second mounting groove for mounting the second circuit board.

[0015] In one embodiment, the guide block is wedge-shaped.

[0016] In one embodiment, the depth of the fixing groove is greater than the thickness of the conductive spring sheet.

[0017] In one embodiment, the rotating plate has a groove at the fixed end of the conductive spring, the groove having a solder pad connected to the conductive spring, and the solder pad being connected to the circuit on the rotating plate.

[0018] In one embodiment, the upper shell is further provided with positioning posts.

[0019] In one embodiment, a first space for accommodating the reset spring and a second space for accommodating the wire harness are formed between the lower shell and the rotating plate.

[0020] This utility model also provides a data cable, which includes a one-way telescopic mechanism and a first connector electrically connected to the one-way telescopic mechanism, as well as a telescopic cable body electrically connected to the one-way telescopic mechanism. The free end of the cable body is provided with a second connector. The one-way telescopic mechanism includes a rotating part and a fixed part, and a rotating shaft disposed between the rotating part and the fixed part. The rotating part includes a rotating plate and a first circuit board disposed on the rotating plate. The first circuit board is provided with at least one set of mounting holes, and each set of mounting holes is provided with a conductive spring. The mounting end of the conductive spring is connected to the first circuit board to form an electrical path. The fixed part includes a housing and a second circuit board disposed on the housing. The second circuit board is provided with a conductive sheet. During the rotation of the rotating part and the fixed part, the conductive sheet and the conductive spring are in continuous contact, so that an electrical path is formed between the first circuit board and the second circuit board.

[0021] In one embodiment, the second circuit board has a conductive area electrically connected to the first circuit board and a transfer area connecting external electricity to the conductive area. The conductive area has a through hole for the rotating shaft to pass through, and the transfer area and the conductive area are located on two different surfaces of the second circuit board.

[0022] In one embodiment, the mounting holes include three sets, which are located in different directions, and each set of mounting holes is distributed at a 120-degree angle with the pivot as the center.

[0023] In one embodiment, the first circuit board further includes an electrical transfer area electrically connected to a conductive spring contact, the electrical transfer area being located in a rotating plate through hole on the rotating plate.

[0024] In one embodiment, the rotating plate is provided with a first mounting groove for fixing a first circuit board; the housing is provided with a second mounting groove for mounting a second circuit board.

[0025] In one embodiment, the one-way telescopic mechanism further includes a retraction assembly for retracting the rotating part and the fixed part, the retraction assembly including a reset spring installed between the rotating plate and the housing.

[0026] In one embodiment, the unidirectional telescopic mechanism further includes a locking assembly for locking the retraction. The locking assembly includes a rotatable lever disposed between the housing and the rotating plate and a guide groove structure disposed on the rotating plate. The guide groove structure includes an inner annular guide groove and an outer annular guide groove, with a communicating opening between the two annular guide grooves. The opening has a guide block that allows the lever to switch between the annular guide grooves. When the rotating plate rotates in the extension direction, one end of the lever moves along a guide groove. When the rotating plate rotates and the lever is located at the tail of the guide block, the lever engages with the guide block to stop the rotating plate from rotating. When it is necessary to rotate in the extension direction again, the lever leaves the guide block. The lever is subjected to a force when rotating rapidly, and the lever rotates along the annular guide groove until it returns to its original position.

[0027] In one embodiment, the guide block includes a guide end and a locking end, wherein the guide end is located in the annular inner guide groove, which divides the annular inner guide groove into a left guide groove and a right guide groove. The right guide groove is connected to the annular outer guide groove, and the left guide groove is connected to the annular inner guide groove. The locking end is provided with a connecting groove connecting the annular inner guide groove and the annular guide groove, and the sidewall of the connecting groove forms a groove in the guide block.

[0028] In one embodiment, the rotating plate has a fixing groove at the free end of the conductive spring sheet that communicates with the mounting hole.

[0029] In one embodiment, the rotating plate is provided with a first mounting groove for fixing the first circuit board; the housing is provided with a second mounting groove for mounting the second circuit board.

[0030] In one embodiment, the guide block is wedge-shaped.

[0031] In one embodiment, the depth of the fixing groove is greater than the thickness of the conductive spring sheet.

[0032] In one embodiment, the rotating plate has a groove at the fixed end of the conductive spring, the groove having a solder pad connected to the conductive spring, and the solder pad being connected to the circuit on the rotating plate.

[0033] In one embodiment, the upper shell is further provided with positioning posts.

[0034] In one embodiment, a first space for accommodating the reset spring and a second space for accommodating the wire harness are formed between the lower shell and the rotating plate.

[0035] This utility model discloses a one-way telescopic mechanism and a data cable. The one-way telescopic mechanism includes a rotating part and a fixed part, and a rotating shaft disposed between the rotating part and the fixed part. The rotating part includes a rotating plate and a first circuit board disposed on the rotating plate. The first circuit board has at least one set of mounting holes, and each set of mounting holes has a conductive spring. The mounting end of the conductive spring is connected to the first circuit board to form an electrical path. The fixed part includes a housing and a second circuit board disposed on the housing. The second circuit board has a conductive sheet. During the rotation of the rotating part and the fixed part, the conductive sheet and the conductive spring are in continuous contact, forming an electrical path between the first circuit board and the second circuit board. Because the data cable is one-way telescopic, it avoids the need for equal tension at both ends of the data cable when it is bidirectionally telescopic, which could easily lead to the cable being unable to telescopically extend or retract. It also avoids jamming during retraction or extension, improving the user experience of using the telescopic data cable. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the description only show some embodiments of this utility model, and therefore should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0037] Figure 1 This is a schematic diagram of an embodiment of the unidirectional telescopic mechanism of this utility model.

[0038] Figure 2 This is an exploded view of another embodiment of the unidirectional telescopic mechanism of this utility model.

[0039] Figure 3 This is an exploded view of another embodiment of the unidirectional telescopic mechanism.

[0040] Figure 4 This is a partial structural schematic diagram of an embodiment of a one-way telescopic mechanism.

[0041] Figure 5 This is a partial structural schematic of an embodiment of the telescopic mechanism.

[0042] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0043] The claims of this utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are also within the protection scope of this utility model.

[0044] It should be understood that, in the description of this utility model embodiments, all directional indicating terms, such as "up," "down," "left," "right," "front," and "back," indicate the orientation or positional relationship based on the orientation and positional relationship shown in the accompanying drawings or the orientation or positional relationship commonly used when the utility model product is in use. These terms are only for the purpose of simplifying the description of this utility model and do not explicitly or implicitly suggest that the device, element, or component referred to must have a specific orientation or specific orientational structure, and should not be construed as a limitation of this utility model. They are only used to explain the relative positional relationships and movement of the components shown in the accompanying drawings. When this specific posture changes, the directional indication may also change accordingly.

[0045] Furthermore, in this utility model, ordinal numbers such as "first" and "second" are used only for distinguishing purposes and should not be construed as indicating or implying their relative importance or the quantity of the indicated technical features. Thus, the features referred to as "first" and "second" can explicitly or implicitly indicate at least one of those technical features. In this utility model, for ease of explanation, quantifiers such as "one," "two," "multiple," "at least one," or "several" may be used to define the technical structural features. "Multiple" means at least two, i.e., two or more; "at least one" and "several" mean one or more corresponding technical features. These quantifiers are only for illustrating the specific embodiment or preferred implementation method and should be included as long as they do not contradict the overall concept and purpose of the utility model, unless explicitly stated that the quantifiers are necessary for implementation or to achieve the purpose of the utility model.

[0046] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," "fixing," and "screw-on" should be interpreted broadly. For example, they can refer to a relatively fixed positional relationship between components, or a physically fixed connection between components; they can be detachable connections or integral structures; they can be mechanical connections or electrical signal connections; they can be direct connections or indirect connections through intermediate media or components; they can refer to the internal connection of two elements or the interaction between two elements. Unless otherwise explicitly limited in the specification, other interpretations will not achieve the corresponding functions or effects. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0047] If the controllers or control circuits involved in this utility model are conventional control technologies or units for those skilled in the art, such as the controller's control circuit, they can be implemented by those skilled in the art using existing methods, such as simple programming. If the software or program involved in conjunction with the hardware to achieve the control result is not described in detail in the description, it belongs to the use of existing technology or conventional technology for those skilled in the art. The power supply also uses the aforementioned existing technology in the art. Furthermore, since the main utility model's technical point lies in the improvement of the mechanical device, this utility model will not describe the specific circuit control relationships and circuit connections in detail.

[0048] This disclosure provides many different embodiments or examples for implementing different structures of this utility model. To simplify the disclosure, specific examples of components and arrangements are described herein. Of course, these are merely examples and are not intended to limit the scope of this utility model. Furthermore, reference numerals and / or reference letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, this utility model provides examples of various specific processes and materials, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0049] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0050] like Figure 1-5 As shown, this utility model provides an embodiment of a unidirectional telescopic mechanism.

[0051] The unidirectional telescopic mechanism includes a rotating part 2 and a fixed part 1, and a rotating shaft 121 disposed between the rotating part 2 and the fixed part 1. The rotating part 2 includes a rotating plate 20 with a first mounting groove 21. The first mounting groove 21 is provided with a first circuit board 3. The first circuit board 3 is provided with at least one set of mounting holes 31. Each set of mounting holes 31 is provided with a conductive spring 32. The mounting end of the conductive spring 32 is connected to the first circuit board 3 to form an electrical path. The first circuit board 3 is provided with a first solder pad (not shown in the figure). The first solder pad can be connected to the telescopic data... One end of the wire forms an electrical connection; the fixing part 1 includes a housing and a second circuit board 4 disposed in the housing. The second circuit board 4 includes a conductive part 41 and an adapter plate 42 connected to the conductive part 40. The conductive part 40 is provided with a conductive sheet 43 that forms an electrical connection with the conductive spring 32. The conductive sheet 43 is electrically connected to the second solder pad 411 on the adapter area. When the rotating part 2 and the fixing part 2 rotate relative to each other, the conductive spring 32 and the conductive sheet 43 on the conductive part 40 are in continuous contact, so that an electrical path is formed between the first circuit board 3 and the second circuit board 4.

[0052] Specifically, the housing 1 includes an upper housing 11 and a lower housing 12 fixedly formed by the upper housing 11 to form a cavity for mounting the rotating part 2. The housing 1 has a lateral hole 13 communicating with the cavity formed by the upper housing 11 and the lower housing 12. The second circuit board 4 includes a transition plate, which includes a conductive part 41 and a transition part 42 connected to the conductive part 41. The conductive part 41 has a conductive area electrically connected to the first circuit board 3, and the conductive area has a conductive ring. The transition part 42 has a transition area that is electrically connected to the conductive area. The transition area has a second solder pad 421 on two different surfaces of the second circuit board 4. The transition part 42 has a second through hole 44 for the rotating shaft 121 to pass through. The conductive area can be circular, and the transition part 42 can have a strip-shaped structure. Each solder joint of the second solder pad 421 has a groove (not shown in the figures), which can reduce the thickness of the second circuit board 4. It can also reduce the impact on electrical signals caused by contact or close proximity between the weld and surrounding welds.

[0053] Both the first circuit board 3 and the rotating part 2 are provided with a first through hole 22 for the upper rotating shaft 121 to pass through. The adapter part 42 of the adapter plate is provided with a window 111 on the upper shell 11, that is, the second solder pad 421 is exposed in the mounting hole 111. The other end of the data cable with a connector at one end is fixed and soldered to the second solder pad 421 through the window 111 to form an electrical connection. The mounting hole 31 includes three sets, and the three sets of mounting holes 31 are located in different directions. For example, each set of mounting holes 31 is distributed at a 120-degree angle with the rotating shaft 121 or the first through hole 22 as the center.

[0054] The rotating plate 2 is provided with a first mounting groove 21 for fixing the first circuit board 3, which can improve the installation stability of the first circuit board and reduce its height, thereby reducing the overall structural thickness. The upper shell 11 is provided with a second mounting groove 112 for mounting the second circuit board 4. The second mounting groove 112 is provided with a positioning post 111 that cooperates with the second through hole 44. The positioning post 113 may be provided with a through hole (not shown in the figure), and can be fixedly connected to the rotating shaft 121 by using screws through the through hole.

[0055] As needed, a first space 26 for accommodating the reset spring and a second space for accommodating the wire harness are formed between the lower shell 12 and the rotating plate 2 (not shown in the attached drawings). The rotating plate 2 extends into a column 24 towards the lower shell 12. The first space 26 is located inside the column 24. A fixing block 25 is provided on the outside of the column 24, and a fixing gap 27 is provided between the fixing block 25 and the column 24. The fixing gap 27 is used to fix one end of the wire harness connected to the first solder pad in the through hole 23 of the rotating plate. The second space is the area formed between the outside of the column 24 and the lower shell 12, and this area is used to wrap the telescopic part of the data cable.

[0056] As needed, the one-way telescopic mechanism further includes a retraction assembly that retracts the rotating part 2 and the fixed part 1. This retraction assembly can provide retraction and reset power after the rotating plate rotates. The retraction assembly includes a reset spring (not shown in the figure) installed between the rotating plate and the housing 1. The reset spring is located on the side of the rotating plate away from the second circuit board 4, that is, the reset spring is located between the rotating plate and the lower housing 12. The two ends of the reset spring are fixed to the rotating shaft 121 and the column 24, respectively.

[0057] The unidirectional telescopic mechanism further includes a locking assembly for adjusting the retracted length. This locking assembly includes a rotatable lever 241 positioned between the upper shell 11 and the rotating plate, and a guide groove structure on the rotating plate 2. The guide groove structure includes an inner annular guide groove 243 and an outer annular guide groove 242. A communicating opening is provided between the two annular guide grooves. This opening has a guide block 244 that allows the lever to switch between the annular guide grooves. A first connecting groove 245 is formed between the tail portion 2441 of the guide block and the two annular guide grooves, and a second connecting groove 246 is formed between the end portion of the guide block 244 and the two annular guide grooves. The guide block 244 is wedge-shaped, with the tail portion 2441 being wider than the end portion. The tail portion 2441 has a groove 247. Specifically, the guide block 244 includes a guide end and a locking end, i.e., the guide end is the end portion and the locking end is the tail portion. The guide end is located in the annular inner guide groove 243, dividing the annular inner guide groove 243 into a left guide groove and a right guide groove. The right guide groove communicates with the annular outer guide groove 242, and the left guide groove communicates with the annular inner guide groove 243. The locking end is provided with a first connecting groove 245 connecting the annular inner guide groove 243 and the annular outer guide groove 242. The sidewall of the first connecting groove 245 forms a groove on the guide block. The second connecting groove 246 at the end of the guide block 244 communicates with the annular outer guide groove 242. The spacer between the annular outer guide groove 242 and the annular inner guide groove 243 extends towards the guide block 244 at the opening position, forming a partial overlap between the spacer and the guide block 244 in the rotation direction. That is, the guide end of the guide block 244 and the spacer do not overlap in the rotation direction. The spacer at the tail of the guide block 244 does not overlap with the guide block 244 in the direction of rotation at the opening position, that is, the locking end of the guide block 244 and the spacer do not overlap in the direction of rotation.

[0058] When the rotating plate rotates in the extension direction, one end of the lever 241 moves along a guide groove. When it does not rotate in the extension direction, the rotating plate 2 is reset and rotated freely under the action of the retraction component, that is, rotated in the opposite direction to the extension rotation. When the rotating plate 2 rotates, the lever 241 engages with the tail groove of the guide block 244, causing the rotating plate 2 to stop rotating. When it is necessary to rotate in the extension direction again, the lever 241 leaves the groove. When the lever 241 is in the annular outer guide groove 242, the rotating plate 2 is quickly released. Under the action of the clutch force, the lever 241 will not lock with the guide block 244, thereby achieving complete reset and retraction.

[0059] As needed, the rotating shaft 121 is provided with a mounting groove 1211 for receiving a reset spring. One end of the reset spring is fixed to the housing 1, and the other end is fixed to the mounting groove 1211. The rotating plate 2 is also provided with a fixing block 25, and a fixing gap for fixing data cables is provided between the fixing block 25 and the rotating shaft 121.

[0060] The rotating plate 2 has a fixing groove (not shown in the attached figure) at the free end of the conductive spring 32, which communicates with the mounting hole 31. That is, the free end of the conductive spring 32 has a fixing groove, and the free end of the conductive spring 32 can freely expand and contract within the fixing groove (not shown in the attached figure). This design avoids poor contact between the conductive spring 32 and the conductive sheet 43 during rotation due to excessive force or deformation after prolonged use, preventing excessive deformation or fatigue of the conductive spring 32. The depth of the fixing groove is preferably greater than the thickness of the conductive spring 32. This prevents the conductive spring 32 from protruding from the fixing groove when under pressure. The conductive spring 32 is typically made of shape memory metal, such as copper. The rotating plate has a groove at the fixed end of the conductive spring, which has a solder pad connected to the conductive spring. This solder pad is connected to the circuitry on the rotating plate. This reduces the overall thickness of the rotating plate 2.

[0061] Because the data cable is retractable in one direction, it avoids the need for equal tension at both ends when the data cable is retractable in both directions, which could easily lead to the cable not being able to retract. This also prevents jamming when retracting or extending the cable, thus improving the user experience when using the retractable data cable.

[0062] like Figures 1-5 As shown, this utility model also provides a data cable embodiment.

[0063] The unidirectional telescopic mechanism includes a rotating part 2 and a fixed part 1, and a rotating shaft 121 disposed between the rotating part 2 and the fixed part 1. The rotating part 2 includes a rotating plate 20 with a first mounting groove 21. The first mounting groove 21 is provided with a first circuit board 3. The first circuit board 3 is provided with at least one set of mounting holes 31. Each set of mounting holes 31 is provided with a conductive spring 32. The mounting end of the conductive spring 32 is connected to the first circuit board 3 to form an electrical path. The first circuit board 3 is provided with a first solder pad (not shown in the figure). The first solder pad can be connected to the telescopic data... One end of the wire forms an electrical connection; the fixing part 1 includes a housing and a second circuit board 4 disposed in the housing. The second circuit board 4 includes a conductive part 41 and an adapter plate 42 connected to the conductive part 40. The conductive part 40 is provided with a conductive sheet 43 that forms an electrical connection with the conductive spring 32. The conductive sheet 43 is electrically connected to the second solder pad 411 on the adapter area. When the rotating part 2 and the fixing part 2 rotate relative to each other, the conductive spring 32 and the conductive sheet 43 on the conductive part 40 are in continuous contact, so that an electrical path is formed between the first circuit board 3 and the second circuit board 4.

[0064] Specifically, the housing 1 includes an upper housing 11 and a lower housing 12 fixedly formed by the upper housing 11 to form a cavity for mounting the rotating part 2. The housing 1 has a lateral hole 13 communicating with the cavity formed by the upper housing 11 and the lower housing 12. The second circuit board 4 includes a transition plate, which includes a conductive part 41 and a transition part 42 connected to the conductive part 41. The conductive part 41 has a conductive area electrically connected to the first circuit board 3, and the conductive area has a conductive ring. The transition part 42 has a transition area that is electrically connected to the conductive area. The transition area has a second solder pad 421 on two different surfaces of the second circuit board 4. The transition part 42 has a second through hole 44 for the rotating shaft 121 to pass through. The conductive area can be circular, and the transition part 42 can have a strip-shaped structure. Each solder joint of the second solder pad 421 has a groove (not shown in the figures), which can reduce the thickness of the second circuit board 4. It can also reduce the impact on electrical signals caused by contact or close proximity between the weld and surrounding welds.

[0065] Both the first circuit board 3 and the rotating part 2 are provided with a first through hole 22 for the upper rotating shaft 121 to pass through. The adapter part 42 of the adapter plate is provided with a window 111 on the upper shell 11, that is, the second solder pad 421 is exposed in the mounting hole 111. The other end of the data cable with a connector at one end is fixed and soldered to the second solder pad 421 through the window 111 to form an electrical connection. The mounting hole 31 includes three sets, and the three sets of mounting holes 31 are located in different directions. For example, each set of mounting holes 31 is distributed at a 120-degree angle with the rotating shaft 121 or the first through hole 22 as the center.

[0066] The rotating plate 2 is provided with a first mounting groove 21 for fixing the first circuit board 3, which can improve the installation stability of the first circuit board and reduce its height, thereby reducing the overall structural thickness. The upper shell 11 is provided with a second mounting groove 112 for mounting the second circuit board 4. The second mounting groove 112 is provided with a positioning post 111 that cooperates with the second through hole 44. The positioning post 113 may be provided with a through hole (not shown in the figure), and can be fixedly connected to the rotating shaft 121 by using screws through the through hole.

[0067] As needed, a first space 26 for accommodating the reset spring and a second space for accommodating the wire harness are formed between the lower shell 12 and the rotating plate 2 (not shown in the attached drawings). The rotating plate 2 extends into a column 24 towards the lower shell 12. The first space 26 is located inside the column 24. A fixing block 25 is provided on the outside of the column 24, and a fixing gap 27 is provided between the fixing block 25 and the column 24. The fixing gap 27 is used to fix one end of the wire harness connected to the first solder pad in the through hole 23 of the rotating plate. The second space is the area formed between the outside of the column 24 and the lower shell 12, and this area is used to wrap the telescopic part of the data cable.

[0068] As needed, the one-way telescopic mechanism further includes a retraction assembly that retracts the rotating part 2 and the fixed part 1. This retraction assembly can provide retraction and reset power after the rotating plate rotates. The retraction assembly includes a reset spring (not shown in the figure) installed between the rotating plate and the housing 1. The reset spring is located on the side of the rotating plate away from the second circuit board 4, that is, the reset spring is located between the rotating plate and the lower housing 12. The two ends of the reset spring are fixed to the rotating shaft 121 and the column 24, respectively.

[0069] The unidirectional telescopic mechanism further includes a locking assembly for adjusting the retracted length. This locking assembly includes a rotatable lever 241 positioned between the upper shell 11 and the rotating plate, and a guide groove structure on the rotating plate 2. The guide groove structure includes an inner annular guide groove 243 and an outer annular guide groove 242. A communicating opening is provided between the two annular guide grooves. This opening has a guide block 244 that allows the lever to switch between the annular guide grooves. A first connecting groove 245 is formed between the tail portion 2441 of the guide block and the two annular guide grooves, and a second connecting groove 246 is formed between the end portion of the guide block 244 and the two annular guide grooves. The guide block 244 is wedge-shaped, with the tail portion 2441 being wider than the end portion. The tail portion 2441 has a groove 247. Specifically, the guide block 244 includes a guide end and a locking end, i.e., the guide end is the end portion and the locking end is the tail portion. The guide end is located in the annular inner guide groove 243, dividing the annular inner guide groove 243 into a left guide groove and a right guide groove. The right guide groove communicates with the annular outer guide groove 242, and the left guide groove communicates with the annular inner guide groove 243. The locking end is provided with a first connecting groove 245 connecting the annular inner guide groove 243 and the annular outer guide groove 242. The sidewall of the first connecting groove 245 forms a groove on the guide block. The second connecting groove 246 at the end of the guide block 244 communicates with the annular outer guide groove 242. The spacer between the annular outer guide groove 242 and the annular inner guide groove 243 extends towards the guide block 244 at the opening position, forming a partial overlap between the spacer and the guide block 244 in the rotation direction. That is, the guide end of the guide block 244 and the spacer do not overlap in the rotation direction. The spacer at the tail of the guide block 244 does not overlap with the guide block 244 in the direction of rotation at the opening position, that is, the locking end of the guide block 244 and the spacer do not overlap in the direction of rotation.

[0070] When the rotating plate rotates in the extension direction, one end of the lever 241 moves along a guide groove. When it does not rotate in the extension direction, the rotating plate 2 is reset and rotated freely under the action of the retraction component, that is, rotated in the opposite direction to the extension rotation. When the rotating plate 2 rotates, the lever 241 engages with the tail groove of the guide block 244, causing the rotating plate 2 to stop rotating. When it is necessary to rotate in the extension direction again, the lever 241 leaves the groove. When the lever 241 is in the annular outer guide groove 242, the rotating plate 2 is quickly released. Under the action of the clutch force, the lever 241 will not lock with the guide block 244, thereby achieving complete reset and retraction.

[0071] As needed, the rotating shaft 121 is provided with a mounting groove 1211 for receiving a reset spring. One end of the reset spring is fixed to the housing 1, and the other end is fixed to the mounting groove 1211. The rotating plate 2 is also provided with a fixing block 25, and a fixing gap for fixing data cables is provided between the fixing block 25 and the rotating shaft 121.

[0072] The rotating plate 2 has a fixing groove (not shown in the attached figure) at the free end of the conductive spring 32, which communicates with the mounting hole 31. That is, the free end of the conductive spring 32 has a fixing groove, and the free end of the conductive spring 32 can freely expand and contract within the fixing groove (not shown in the attached figure). This design avoids poor contact between the conductive spring 32 and the conductive sheet 43 during rotation due to excessive force or deformation after prolonged use, preventing excessive deformation or fatigue of the conductive spring 32. The depth of the fixing groove is preferably greater than the thickness of the conductive spring 32. This prevents the conductive spring 32 from protruding from the fixing groove when under pressure. The conductive spring 32 is typically made of shape memory metal, such as copper. The rotating plate has a groove at the fixed end of the conductive spring, which has a solder pad connected to the conductive spring. This solder pad is connected to the circuitry on the rotating plate. This reduces the overall thickness of the rotating plate 2.

[0073] Because the data cable is retractable in one direction, it avoids the need for equal tension at both ends when the data cable is retractable in both directions, which could easily lead to the cable not being able to retract. This also prevents jamming when retracting or extending the cable, thus improving the user experience when using the retractable data cable.

[0074] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions or combinations can be made to some structural technical features in one or more embodiments. Such modifications or substitutions or combinations do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model, unless the possibility of substituting or combining structural technical features in different embodiments is explicitly excluded in the embodiments, or such substitutions or combinations are contrary to the overall concept of the utility model.

Claims

1. A one-way telescopic mechanism, comprising a rotating part and a fixed part, and a rotating shaft disposed between the rotating part and the fixed part, characterized in that, The rotating part includes a rotating plate and a first circuit board disposed on the rotating plate. The first circuit board has at least one set of mounting holes, and each set of mounting holes has a conductive spring. The mounting end of the conductive spring is connected to the first circuit board to form an electrical path. The fixing part includes a housing and a second circuit board disposed on the housing. The second circuit board has a conductive sheet. During the rotation of the rotating part and the fixing part, the conductive sheet and the conductive spring are in continuous contact, so that an electrical path is formed between the first circuit board and the second circuit board.

2. The unidirectional telescopic mechanism according to claim 1, characterized in that: The second circuit board has a conductive area that is electrically connected to the first circuit board and a transfer area that connects external electricity to the conductive area. The conductive area has a through hole for the rotating shaft to pass through. The transfer area and the conductive area are located on two different surfaces of the second circuit board.

3. The unidirectional telescopic mechanism according to claim 2, characterized in that: The mounting holes include three sets, which are located in different directions. Each set of mounting holes is distributed at a 120-degree angle with the pivot as the center.

4. The unidirectional telescopic mechanism according to claim 1, characterized in that: The first circuit board is also provided with an electrical transfer area that is electrically connected to the conductive spring contact, and the electrical transfer area is located in the rotating plate through hole on the rotating plate.

5. The unidirectional telescopic mechanism according to claim 1, characterized in that: The rotating plate is provided with a first mounting groove for fixing the first circuit board; the housing is provided with a second mounting groove for mounting the second circuit board.

6. The unidirectional telescopic mechanism according to claim 1, characterized in that: The unidirectional telescopic mechanism further includes a retraction assembly for retracting the rotating part and the fixed part, the retraction assembly including a reset spring installed between the rotating plate and the housing.

7. The unidirectional telescopic mechanism according to claim 6, characterized in that: The unidirectional telescopic mechanism further includes a locking assembly for locking the retraction. The locking assembly includes a rotatable lever disposed between the housing and the rotating plate and a guide groove structure disposed on the rotating plate. The guide groove structure includes an inner annular guide groove and an outer annular guide groove, with a communicating opening between the two annular guide grooves. The opening has a guide block for switching the lever between the annular guide grooves. The guide block includes a guide end and a locking end. The guide end is located in the inner annular guide groove and divides the inner annular guide groove into a left guide groove and a right guide groove. The right guide groove communicates with the outer annular guide groove, and the left guide groove communicates with the inner annular guide groove. The locking end has a first connecting groove connecting the inner annular guide groove and the outer annular guide groove. The sidewall of the first connecting groove forms a groove on the guide block. The locking end of the guide block and the spacer do not overlap in the rotation direction.

8. The unidirectional telescopic mechanism according to claim 7, characterized in that: The guide block includes a guide end and a locking end. The guide end is located in the inner annular guide groove, which divides the inner annular guide groove into a left guide groove and a right guide groove. The right guide groove is connected to the outer annular guide groove, and the left guide groove is connected to the inner annular guide groove. The locking end is provided with a connecting groove that connects the inner annular guide groove and the annular guide groove. The sidewall of the connecting groove forms a groove in the guide block.

9. The unidirectional telescopic mechanism according to claim 1, characterized in that: The rotating plate has a fixing groove at the free end of the conductive spring sheet that communicates with the mounting hole.

10. A data cable, comprising a one-way telescopic mechanism and a first connector electrically connected to the one-way telescopic mechanism, and a telescopic cable body electrically connected to the one-way telescopic mechanism, wherein the free end of the cable body is provided with a second connector, characterized in that: The unidirectional telescopic mechanism has the unidirectional telescopic mechanism as described in any one of claims 1-9.

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