Telescopic data line module with bistability

Abstract

The application discloses a telescopic data line module with bistability, which comprises a shell, a movable disc and a locking device, the shell is provided with an inner cavity, the top wall of the inner cavity is provided with a fixed disc, the movable disc is pivotally installed in the middle of the fixed disc or the inner cavity, the movable disc is provided with an annular part protruding upward, the outer peripheral wall of the annular part is concavely provided with a plurality of locking grooves, the movable disc is provided with a torsional spring, the torsional spring is used for driving the movable disc to wind the data line towards the axial direction, and the locking device is arranged on the shell or the fixed disc. The locking device comprises a swing arranged locking seat and a pivotally arranged secondary locking seat, the end of the locking seat, which is far away from the swing shaft, is provided with a clamping strip, the secondary locking seat is arranged on the wall surface of the locking seat, the shell is provided with a first tension spring and a second tension spring, one end of the first tension spring is installed on the first side surface of the locking seat, the other end of the first torsional spring is installed on the shell, one end of the second tension spring is installed on the second side surface of the locking seat, and the other end of the second tension spring is installed on the shell.

Description

Technical Field

[0001] This invention relates to the field of retractable data cable modules, and particularly to a retractable data cable module with dual stability. Background Technology

[0002] Data cables are a common item in people's lives. When the data cable is long, the current practice is to use a retractable roll-up cable to store it, which can also provide some protection.

[0003] Existing retractable data cable modules generally include a housing, a coil spring, a fixed plate, and a moving plate. The data cable is housed in the moving plate, and an electrical connection structure is provided between the moving plate and the fixed plate to achieve electrical connection. Current methods typically involve setting locking and unlocking slots along the circumference of the moving plate, and then using a ratchet located on the fixed plate and / or the housing to lock the rotation of the moving plate. However, this method has a problem: the locking and unlocking between the locking and unlocking slots is not smooth enough.

[0004] A conductive PCB board is also provided between the moving plate and the fixed plate.

[0005] For example, existing technology, such as Chinese patent CN202322261314.4, mainly consists of a take-up track and a release track, which enables the unlocking and locking of the take-up reel (i.e., the moving reel).

[0006] Furthermore, existing systems generally use ratchet and toothed mechanisms to achieve locking, unlocking, and retraction rotation. As a result, their wear and locking stability between the fixed and moving plates are poor, and assembly is also more complicated, leading to higher production processes and labor costs. Summary of the Invention

[0007] The main objective of this invention is to propose a retractable data cable module with dual stability, which aims to improve the cooperation structure between the fixed and moving discs, thereby ensuring smooth rotation and locking switching between the two, and improving the user experience.

[0008] To achieve the above objectives, this invention proposes a retractable data cable module with bi-stability, comprising:

[0009] A housing, wherein the housing has an inner cavity, and a fixed plate is provided on the top wall of the inner cavity;

[0010] The movable disk is pivotally mounted in the middle of the fixed disk or the inner cavity. The movable disk has an upwardly protruding annular part. The outer peripheral wall of the annular part is recessed with multiple locking grooves. The movable disk is equipped with a torsion spring, which is used to drive the movable disk to wind the data cable in the direction of the axis.

[0011] A locking device, wherein the locking device is disposed on the housing or the fixed plate;

[0012] The locking device includes a swing-mounted locking seat and a pivotally mounted secondary locking seat, and the end of the locking seat away from the swing axis is provided with a retaining bar;

[0013] The secondary lock seat is disposed on the wall of the lock seat, and the housing is provided with a first tension spring and a second tension spring. One end of the first tension spring is installed on the first side of the lock seat, and the other end of the first torsion spring is installed on the housing.

[0014] One end of the second tension spring is mounted on the second side of the locking seat, and the other end of the second tension spring is mounted on the housing;

[0015] The locking seat can swing between the position of being inserted into the locking slot and the position of being removed from the locking slot, thereby locking or unlocking the rotation of the moving plate;

[0016] The secondary locking seat is used to lock or unlock the swing of the locking seat.

[0017] In the actual design, the locking device is set as a locking seat and a secondary locking seat. Through the cooperation of the locking seat and the secondary locking seat, the locking and unlocking of the moving plate can be realized. The design of the locking groove can be simpler (i.e., the cooperation between the locking groove and the locking strip). In the actual mold production, the production cost of the moving plate is lower. At the same time, placing the locking seat and the secondary locking seat externally can also make the rotation of the moving plate smoother and more stable during actual use, and more stable when locking, thus improving the service life of the rotating data cable.

[0018] At the same time, the combination of the first and second tension springs enables the locking seat to rotate or unlock under the drive of the moving plate;

[0019] When the locking seat swings, it also drives the secondary locking seat to rotate, thereby achieving the adjustment of the inferior arc groove and the superior arc groove. Attached Figure Description

[0020] Figure 1 For the explosion of this invention Figure 1 ;

[0021] Figure 2 For the explosion of this invention Figure 2 ;

[0022] Figure 3 This is a cross-sectional view of the present invention in the height direction;

[0023] Figure 4 This is a horizontal sectional view of the present invention;

[0024] Figure 5 This is a schematic diagram of the locked state of the present invention;

[0025] Figure 6 This is a diagram illustrating the data cable's locked state.

[0026] Figure 7 This is a schematic diagram of the data cable being stretched outwards.

[0027] Figure 8 This is a schematic diagram showing the data line retracting inwards.

[0028] Figure 9 This is a three-dimensional schematic diagram of the present invention;

[0029] Figure 10 Indication for locking seat Figure 1 ;

[0030] Figure 11 Indication for locking seat Figure 2 ;

[0031] Figure 12 This is a schematic diagram of a secondary lock seat.

[0032] In the picture,

[0033] 1. Housing; 10. Inner cavity; 11. Moving plate; 12. Fixed plate; 13. First PCB board; 14. Second PCB board; 15. Elastic contact piece; 16. Copper strip;

[0034] 2. Annular part; 20. Locking groove; 21. Torsion spring; 22. Data cable;

[0035] 3. Locking seat; 31. First side; 32. Second side; 33. Inner hook; 34. Outer hook;

[0036] 4. Secondary lock seat; 41. Inferior arc groove; 42. Superior arc groove;

[0037] 51. First rotating shaft; 52. Second rotating shaft;

[0038] 61. First tension spring; 62. Second tension spring;

[0039] 7. Arc-shaped groove;

[0040] 81. Unlock wall; 82. Lock wall;

[0041] 91. First buckle; 92. Second buckle;

[0042] 100. Long strip protrusion. Detailed Implementation

[0043] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0044] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0045] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0046] like Figures 1 to 11 As shown, a retractable data cable module 22 with bistability includes:

[0047] The housing 1 has an inner cavity 10, and the top wall of the inner cavity 10 is provided with a fixed plate 12;

[0048] The movable disk 11 is pivotally mounted on the middle of the fixed disk 12 or the inner cavity 10. The movable disk 11 is provided with an upwardly protruding annular part 2. The outer peripheral wall of the annular part 2 is recessed with a plurality of locking grooves 20. The movable disk 11 is provided with a torsion spring 21. The torsion spring 21 is used to drive the movable disk 11 to wind the data cable 22 toward the axis.

[0049] A locking device is provided on the housing 1 or the fixed plate 12;

[0050] The locking device includes a swing-mounted locking seat 3 and a pivotally mounted secondary locking seat 4. The end of the locking seat 3 away from the swing axis is provided with a retaining bar.

[0051] The secondary lock seat 4 is provided on the wall of the lock seat 3. The housing 1 is provided with a first tension spring 61 and a second tension spring 62. One end of the first tension spring 61 is installed on the first side 31 of the lock seat 3, and the other end of the first torsion spring 21 is installed on the housing 1.

[0052] One end of the second tension spring 62 is mounted on the second side 32 of the locking seat 3, and the other end of the second tension spring 62 is mounted on the housing 1;

[0053] The locking seat 3 can swing between the position of extending into the locking groove 20 and the position of exiting the locking groove 20, thereby locking or unlocking the rotation of the moving plate 11;

[0054] The secondary locking seat 4 is used to lock or unlock the swing of the locking seat 3.

[0055] In the actual design, the locking device is set as a locking seat 3 and a secondary locking seat 4. Through the cooperation of the locking seat 3 and the secondary locking seat 4, the locking and unlocking of the moving plate 11 can be realized. The design of the locking groove 20 can be simpler (i.e., the cooperation between the locking groove 20 and the card strip). In the actual mold production, the production cost of the moving plate 11 is lower. At the same time, by placing the locking seat 3 and the secondary locking seat 4 externally, the rotation of the moving plate 11 can be smoother and more stable during actual use, and the locking can be more stable, which improves the service life of the rotating data cable 22.

[0056] At the same time, the first tension spring 61 and the second tension spring 62 are used in combination to enable the locking seat 3 to rotate or unlock under the drive of the moving plate 11;

[0057] When the locking seat 3 swings, it will also drive the secondary locking seat 4 to rotate, thereby realizing the adjustment of the inferior arc groove 41 and the superior arc groove 42.

[0058] Specifically, the two sides of the card strip are a locking wall 82 and an unlocking wall 81, respectively. The locking wall 82 and unlocking wall 81 with different shapes can play different roles in the winding direction and the stretching direction, so as to realize shape unlocking and locking.

[0059] Specifically, the locking base 3 is in the shape of a quadrangular rhombus, but it can also be set to other shapes according to actual needs.

[0060] The housing 1 is provided with a first rotating shaft 51, and the first rotating shaft 51 and the locking bar are arranged opposite to each other. The locking bar extends from the inner side wall of the locking seat 3 toward the axis.

[0061] Specifically, the corner end of the locking wall 82 is a vertical surface, and the corner end of the unlocking wall 81 is an arc-shaped chamfer. The vertical surface achieves locking, and the arc-shaped chamfer achieves release and unlocking under the action of elasticity.

[0062] Specifically, the fixed plate 12 and the moving plate 11 are made of plastic boards. The fixed plate 12 and the moving plate 11 are respectively provided with a first PCB board 13 and a second PCB board 14 that cooperate with each other. The first PCB board 13 is provided with elastic contact pieces 15, and the second PCB board 14 is provided with copper strips 16 that cooperate with the elastic contact pieces 15.

[0063] The elastic contact piece 15 is composed of multiple circular rings, and one end of the data line 22 is electrically connected to the second PCB board 14, thereby ensuring that the data line 22 remains conductive while rotating. The second PCB board is located within the annular groove.

[0064] Specifically, the moving plate 11 is provided with an arc-shaped groove 7 that penetrates the wall. The end of the data cable 22 passes through the arc-shaped groove 7 and is electrically connected to the second PCB board 14, which means that the fixed plate 12 is the power supply end.

[0065] Specifically, the outer periphery of the secondary lock seat 4 is provided with adjacent minor arc grooves 41 and major arc grooves 42. There are two minor arc grooves 41 and two major arc grooves 42. The radius of the major arc groove 42 is smaller than the radius of the minor arc groove 41, and the width of the minor arc groove 41 is smaller than the width of the major arc groove 42.

[0066] The wall surface of the locking seat 3 is provided with an inner hook 33 and an outer hook 34;

[0067] The inner hook 33 is located in the middle of the locking seat 3, and the outer hook 34 is located on the outer periphery of the locking seat 3.

[0068] Specifically, the inferior arc groove 41 and the superior arc groove 42 are concave arcs, thereby achieving mutual restraint with the inner hook 33 and the outer hook 34.

[0069] Specifically, the inner hook 33 and the outer hook 34 are arranged facing each other, thereby achieving cooperation with the locking seat 3. That is, it can both drive the secondary locking seat 4 to rotate and also play a limiting role.

[0070] Specifically, the top wall of the housing 1 is provided with a second rotating shaft 52 for installing a secondary lock seat 4, that is, both the first rotating shaft 51 and the second rotating shaft 52 are provided in the housing 1, which facilitates installation.

[0071] Specifically, the width of the locking bar is smaller than the width of the locking groove 20. For example, the width of the locking bar is equivalent to ⅔ of the locking groove 20 (of course, the specific design can be made according to actual needs, and can be set according to length or width). This can ensure that the locking bar is locked and that it can disengage from the locking groove 20 when the moving plate 11 rotates. In other words, the locking and unlocking of the locking bar is achieved through the cooperation of the relatively inferior arc groove 41 and the superior arc groove 42 of the secondary locking seat 4.

[0072] Specifically, the first side 31 and the second side 32 of the locking seat 3 are respectively provided with a first buckle 91 and a second buckle 92. The first buckle 91 and the second buckle 92 are used to install the first tension spring 61 and the second tension spring 62, thereby facilitating installation and positioning. At the same time, the first buckle 91 and the second buckle 92 are set on the bottom wall of the secondary locking seat 4, so that the tension spring can be limited.

[0073] Specifically, the two sides of the locking groove 20 are vertical walls.

[0074] Specifically, the first side 31 and the second side 32 are inclined surfaces, that is, the housing 1 and the locking seat 3 cooperate to achieve the limiting, and at the same time, the space can be maximized.

[0075] Specifically, when the inner hook 33 is engaged in the inferior arc groove 41, the secondary locking seat 4 locks with the locking bar, the locking wall 82 abuts against the side wall of the locking groove 20, and locks the rotation of the moving plate 11, thereby causing the locking bar to be engaged in the predetermined locking groove 20 position, thus adjusting the stretching length of the telescopic line, such as... Figure 5 As shown.

[0076] Specifically, when the outer hook 34 is engaged with another inferior arc groove 41, the locking bar disengages from the locking groove 20, and the end of the locking bar is located on the right side of the annular portion 2. Under the winding pressure of the torsion spring 21, the data cable 22 is wound onto the moving disc 11. It can be understood that at this time, the moving disc 11 and the locking seat 3 are always in an unlocked state. Figure 7 As shown.

[0077] Specifically, when the inner hook 33 is engaged with the arc groove 42, the end wall of the locking strip abuts against the side wall of the moving disc 11, and the moving disc 11 can rotate in the stretching direction, thus achieving intermittent stretching. Figure 6 As shown.

[0078] Specifically, the lower wall of the moving disk 11 is provided with a reel, which is used to wind up the data cable 22.

[0079] The annular groove is provided with four circumferentially distributed locking grooves.

[0080] Among them, the wall surface of the locking seat 3 that abuts against the housing 1 is provided with a long strip protrusion 100, thereby reducing friction. The long strip protrusion 100 is arc-shaped and can also serve as a guide.

[0081] In actual process switching

[0082] Switch to state 1 (locked state), such as Figure 5 When the locking bar is engaged in the locking groove 20, the moving plate 11, driven by the elastic force of the torsion spring 21, causes the locking wall 82 to abut against the front wall of the locking groove 20.

[0083] The tension of the first tension spring 61 and the second tension spring 62 on both sides of the locking seat 3 is in the same or balanced state, so the inner hook 33 of the locking seat 3 abuts against the arc groove 42 to achieve secondary locking.

[0084] Switch to state two (state two (data cable 22 extended outwards) as follows) Figure 6When the data cable 22 is pulled, the data cable 22 drives the moving plate 11 to overcome the pressure of the torsion spring 21 and rotate. Under the drive of the locking groove 20, the locking bar swings forward (at the same time, the inner locking hook 33 drives the secondary locking seat 4 to swing forward), so that the locking bar is locked at the front part of the outer wall of the annular part 2. At this time, the outer locking hook 34 and the arc groove 42 of the secondary locking seat 4 abut against each other.

[0085] At this time, the first tension spring 61 is compressed and the second tension spring 62 is released;

[0086] This achieves secondary locking;

[0087] When the data cable 22 stops being pulled, the locking bar, under the action of the first tension spring 61 and the second tension spring 62 and the winding pressure of the torsion spring 21, causes the locking bar to swing in the opposite direction into the locking groove 20 or just lock into the locking groove 20.

[0088] Switching to State 3 (Data line 22 retracts inward (i.e., rewinds)), as follows Figure 7 That is, switching from state two to state three, in which the data cable 22 is not continuously pulled outward (the pulling force of the hand is greater than the pressure of the torsion spring 21), then the locking seat 3 will swing to the rear position of the annular part 2 under the pressure of the torsion spring 21:

[0089] When the pressure of the torsion spring 21 is greater than the pressure of the first tension spring 61 (for example, when the data cable 22 is fully pulled open, or when the data cable 22 is pulled to a certain distance to the outer peripheral wall of the annular part 2 and then released), the pressure of the torsion spring 21 causes the moving disc 11 to rotate in the winding direction, and causes the locking bar in state two to disengage from the locking groove 20. Under the pressure of the torsion spring 21, the locking seat 3 drives the secondary locking seat 4 to rotate, so that the minor arc of the secondary lock abuts against the outer locking hook 34, thereby realizing the continuous winding of the moving disc 11 under the winding elastic force of the torsion spring 21.

[0090] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A retractable data cable module with bi-stability, characterized in that, include: A housing, wherein the housing has an inner cavity, and a fixed plate is provided on the top wall of the inner cavity; The movable disk is pivotally mounted in the middle of the fixed disk or the inner cavity. The movable disk has an upwardly protruding annular part. The outer peripheral wall of the annular part is recessed with multiple locking grooves. The movable disk is equipped with a torsion spring, which is used to drive the movable disk to wind the data cable in the direction of the axis. A locking device, wherein the locking device is disposed on the housing or the fixed plate; The locking device includes a swing-mounted locking seat and a pivotally mounted secondary locking seat, and the end of the locking seat away from the swing axis is provided with a retaining bar; The secondary lock seat is disposed on the wall of the lock seat, and the housing is provided with a first tension spring and a second tension spring. One end of the first tension spring is installed on the first side of the lock seat, and the other end of the first torsion spring is installed on the housing. One end of the second tension spring is mounted on the second side of the locking seat, and the other end of the second tension spring is mounted on the housing; The locking seat can swing between the position of being inserted into the locking slot and the position of being removed from the locking slot, thereby locking or unlocking the rotation of the moving plate; The secondary locking seat is used to lock or unlock the swing of the locking seat.

2. The retractable data cable module with bistability as described in claim 1, characterized in that: The card bar has a locking wall and an unlocking wall on its two sides.

3. The retractable data cable module with bistability as described in claim 1, characterized in that: The locking seat is quadrangular in shape. The housing is provided with a first rotating shaft, and the first rotating shaft and the locking bar are arranged opposite to each other. The locking bar extends from the inner side wall of the locking seat toward the axis.

4. The retractable data cable module with bistability as described in claim 2, characterized in that: The corner end of the locking wall is a vertical surface, while the corner end of the unlocking wall is an arc-shaped chamfer.

5. The retractable data cable module with bistability as described in claim 1, characterized in that: The fixed plate and the moving plate are made of plastic sheets. The fixed plate and the moving plate are respectively provided with a first PCB board and a second PCB board that cooperate with each other. The first PCB board is provided with elastic contact pieces, and the second PCB board is provided with copper strips that cooperate with the elastic contact pieces. The elastic contact piece is composed of multiple circular rings, and one end of the data line is electrically connected to the second PCB board. The second PCB board is located inside the annular groove; The moving plate is provided with an arc-shaped groove that penetrates the wall, and the end of the data cable passes through the arc-shaped groove and is electrically connected to the second PCB board.

6. The retractable data cable module with bistability as described in claim 2, characterized in that: The outer periphery of the secondary lock seat is provided with adjacent minor arc grooves and major arc grooves. There are two minor arc grooves and two major arc grooves. The radius of the major arc groove is smaller than the radius of the minor arc groove, and the width of the minor arc groove is smaller than the width of the major arc groove. The wall surface of the locking seat is provided with an inner hook and an outer hook; The inner hook is located in the middle of the locking seat, and the outer hook is located on the outer periphery of the locking seat; the inferior arc groove and the superior arc groove are concave arcs; the inner hook and the outer hook are arranged facing each other; the top wall of the housing is provided with a second rotating shaft to install a secondary locking seat; The width of the card strip is smaller than the width of the locking slot.

7. The retractable data cable module with bistability as described in claim 6, characterized in that: The first and second sides of the locking seat are respectively provided with a first buckle and a second buckle, which are used to install a first tension spring and a second tension spring; the two sides of the locking groove are vertical walls; the first and second sides are inclined surfaces.

8. The retractable data cable module with bistability as described in claim 6, characterized in that: When the inner locking hook engages with the inferior arc groove, the secondary locking seat locks with the locking bar, the locking wall abuts against the side wall of the locking groove, and locks the rotation of the moving plate. When the outer hook is engaged in another inferior arc groove, the locking bar disengages from the locking groove, and the end of the locking bar is located on the right side of the annular portion. Under the winding pressure of the torsion spring, the data cable is wound onto the moving disc. When the inner hook is engaged in the arc groove, the end wall of the locking strip abuts against the side wall of the moving plate, and the moving plate can rotate in the stretching direction.

9. The retractable data cable module with bistability as described in claim 6, characterized in that: The lower wall of the moving disk is provided with a spool, which is used to wind up the data cable.

10. The retractable data cable module with bistability as described in claim 5, characterized in that: The locking seat has a long protrusion on the wall surface that abuts against the housing; The annular groove is provided with four circumferentially distributed locking grooves.

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