Telescopic wire box

Abstract

The utility model provides a telescopic wire box which comprises a box body, a storage disc, a spring and a data line, the box body is provided with a containing cavity, a fixing column is arranged in the containing cavity, the storage disc and the spring are arranged on the fixing column in a sleeved mode, the data line is connected to the storage disc in a wound mode, and the box body is provided with a data line opening corresponding to the data line. The storage disc can rotate along the fixing column, one end of the spring is connected with the storage disc, the other end of the spring is connected with the fixing column, the storage disc is provided with a storage disc PCB, the lower cover is provided with a fixing PCB, the storage disc PCB is provided with an elastic needle set, the data line is electrically connected with the elastic needle set through the storage disc PCB, the fixing PCB is provided with an annular contact set corresponding to the elastic needle set, and the elastic needle set abuts against the annular contact set. Contact is softer, signal current transmission is more reliable, and the service life is longer.

Description

Technical Field

[0001] The utility model relates to the technical field of data lines, in particular to a telescopic wire box. Background Art

[0002] The storage tray in the existing cable retraction boxes on the market is equipped with metal springs to realize the transmission of signal current between the rotating storage tray and the fixed PCB. This transmission method seriously affects the normal use of the cable retraction box due to the short contact life of the springs (it can generally rotate about three thousand times, suffers severe wear and tear, and affects the conduction effect). The reliability life of the current transmission between the rotating and fixed ends seriously restricts the overall life of the product, which cannot meet the customer's requirements for the life of the cable retraction box and needs to improve the retraction life. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a telescopic wire box with reasonable structure and stable and reliable electrical connection.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is as follows: a telescopic wire box, comprising a box body, a storage tray, a spring and a data cable, the box body being provided with a receiving cavity, the receiving cavity being provided with a fixing post, the receiving tray and the spring being sleeved on the fixing post, the data cable being wound around the storage tray, and the box body being provided with a data cable opening corresponding to the data cable;

[0005] The storage tray can rotate along the fixed column, one end of the mainspring is connected to the storage tray, and the other end of the mainspring is connected to the fixed column. The storage tray is provided with a storage tray PCB, and the lower cover is provided with a fixed PCB. The storage tray PCB is provided with a spring pin group, and the data line is electrically connected to the spring pin group through the storage tray PCB. The fixed PCB is provided with an annular contact group corresponding to the spring pin group, and the spring pin group abuts against the annular contact group.

[0006] Furthermore, the outer side of the storage tray is provided with external teeth, and the box body is provided with a driven gear, and the driven gear is engaged with the external teeth of the storage tray.

[0007] Furthermore, there are at least three driven gears, and the three driven gears are evenly arranged along the circumferential direction of the storage tray.

[0008] Furthermore, an escapement mechanism is provided in the box body.

[0009] Furthermore, the escapement mechanism includes an escapement pendulum and an escapement boss. The accommodating cavity of the box body is provided with a pendulum shaft, the escapement pendulum can rotate around the pendulum shaft, and the escapement pendulum includes a guide portion and a limit portion. The escapement boss is provided on the storage tray, a guide groove is provided on the escapement boss, and a limit protrusion is provided on the outer side of the escapement boss.

[0010] When the rotation speed of the storage tray exceeds a preset value, the guide groove of the escapement boss drives the limiting portion of the escapement pendulum block to approach the escapement boss and is blocked by the limiting protrusion.

[0011] Furthermore, the guide groove includes a release guide groove, a limiting guide groove and a retaining guide groove, and the release guide groove is arranged on the inner side of the limiting guide groove and the retaining guide groove.

[0012] Furthermore, there are two groups of elastic needle groups, and the two groups of elastic needle groups are symmetrical with the fixed column as the center of the circle.

[0013] Furthermore, the elastic needle group includes a plurality of elastic needles, each of which includes a main body and a needle head. A spring is provided in the main body, and the needle head abuts against the top end of the spring.

[0014] Furthermore, the top of the needle is hemispherical.

[0015] Furthermore, the storage tray is provided with a limiting column, and the storage tray PCB is provided with a limiting hole corresponding to the limiting column.

[0016] The beneficial effects of the utility model are: providing a retractable wire box with a reasonable structure, which includes a box body, a storage tray, a spring and a data cable, the box body is provided with a accommodating cavity, a fixed column is provided in the accommodating cavity, the storage tray and the spring are sleeved on the fixed column, the data cable is wound around the storage tray, and the box body is provided with a data cable opening corresponding to the data cable; the storage tray can rotate along the fixed column, one end of the spring is connected to the storage tray, and the other end of the spring is connected to the fixed column, the storage tray is provided with a storage tray PCB, the lower cover is provided with a fixed PCB, the storage tray PCB is provided with a spring pin group, the data cable is electrically connected to the spring pin group through the storage tray PCB, the fixed PCB is provided with an annular contact group corresponding to the spring pin group, the spring pin group abuts against the annular contact group, the contact is softer, the signal current transmission is more reliable, and the service life is longer. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The specific structure of the utility model is described in detail below with reference to the accompanying drawings:

[0018] Figure 1 This is a schematic diagram of the overall structure of the telescopic wire box of the present utility model;

[0019] Figure 2 This is a schematic diagram of the exploded structure of the telescopic wire box of the utility model from one perspective;

[0020] Figure 3 This is a schematic diagram of the exploded structure of the telescopic wire box of the present invention from another perspective;

[0021] Figure 4 This is a schematic structural diagram of the escapement pendulum block of the present utility model;

[0022] Figure 5 This is a schematic structural diagram of the storage tray of the present invention;

[0023] 11-upper cover; 111-upper cover connecting column; 12-lower cover; 121-fixed PCB; 122-ring contact group;

[0024] 2-storage tray; 21-storage tray PCB; 211-spring needle assembly; 22-storage tray boss; 23-external teeth; 24-driven gear; 25-escapement pendulum; 251-guide portion; 252-limiting portion; 26-escapement boss; 261-limiting protrusion; 262-release guide groove; 263-limiting guide groove; 264-holding guide groove; 265-guide block;

[0025] 3- Clockwork;

[0026] 4-data line; 41-connector end. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features being referred to. Thus, features defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0030] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0031] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0032] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms should not be understood as necessarily referring to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification.

[0033] Example

[0034] See also Figures 1 to 5 This embodiment provides a telescopic cable box, including a box body, a storage tray 2, a spring 3 and a data cable 4. The box body is provided with a receiving cavity, a fixing column is provided in the receiving cavity, the receiving tray 2 and the spring 3 are sleeved on the fixing column, the data cable 4 is wound around the receiving tray 2, and the box body is provided with a data cable opening corresponding to the data cable 4;

[0035] The storage tray 2 can rotate along the fixed column, one end of the spring 3 is connected to the storage tray 2, and the other end of the spring 3 is connected to the fixed column. The storage tray 2 is provided with a storage tray PCB 21, and the lower cover 12 is provided with a fixed PCB 121. The storage tray PCB 21 is provided with a spring pin group 211. The data cable 4 is electrically connected to the spring pin group 211 through the storage tray PCB 21. The fixed PCB 121 is provided with an annular contact group 122 corresponding to the spring pin group 211, and the spring pin group 211 abuts against the annular contact group 122.

[0036] In this embodiment, in order to facilitate assembly and subsequent maintenance, the box body includes an upper cover 11 and a lower cover 12. The upper cover 11 is provided with an upper cover connecting column 111, and the lower cover 12 is provided with a lower cover connecting column. The upper cover 11 and the lower cover 12 are buckled together to obtain the box body. The upper cover connecting column 111 and the lower cover connecting column can be connected by screws to form a fixing column. The storage tray 2 is provided with a storage tray boss 22, and the storage tray boss 22 is provided with a spring receiving groove. The bottom of the spring receiving groove is provided with a storage tray through hole. The spring 3 It is set in the spring accommodating groove, and the storage tray 2 is mounted on the fixed column through the storage tray through-hole, one end of the spring 3 is fixed to the groove wall of the spring accommodating groove of the storage tray 2, and the other end of the spring 3 is connected to the fixed column, thus completing the assembly of the storage tray 2 and the box body. In order to realize the telescopic function of the data cable 4, the data cable 4 is wrapped around the outer side of the storage tray boss 21 of the storage tray 2. The data cable 4 includes a wiring terminal and a connector end 41. The wiring terminal is connected to the storage tray PCB 21 set on the storage tray 2, and the box body is provided with a data cable opening corresponding to the data cable 4. The connector end 41 of the data cable 4 extends to the outside of the box body through the data cable opening.

[0037] When the data cable 4 is pulled out, the data cable 4 drives the storage tray 2 to rotate in the unwinding direction and compresses the mainspring 4; when the data cable 4 needs to be recovered, the mainspring 3 drives the storage tray 2 to rotate in the rewinding direction through elastic force and wraps the data cable 4 around the outer side of the storage tray boss 21, thereby realizing the retraction and storage of the data cable 4.

[0038] To ensure the transmission of signal current, the storage tray PCB 21 is provided with a spring pin group 211, and the data line 4 is electrically connected to the spring pin group 211 through the storage tray PCB 21. The lower cover 12 is provided with a fixed PCB 121, and the fixed PCB 121 is provided with a ring contact group 122 corresponding to the spring pin group 211. When the storage tray 2 rotates relative to the lower cover 12, the data line 4 can always maintain an electrical connection with the ring contact group 122 through the spring pin group 211.

[0039] Compared with the spring contact method in the prior art, the connection method between the spring pin group 211 and the annular contact group 122 can make the contact softer, the signal current transmission more reliable, and the service life longer.

[0040] In one embodiment, the structure of the telescopic wire box is improved to ensure smoother rotation of the storage tray 2. Specifically, the outer side of the storage tray 2 is provided with external teeth 23, and the box body is provided with a driven gear 24, which meshes with the external teeth 23 of the storage tray 2.

[0041] In this embodiment, external teeth 23 are provided on the outside of the storage tray 2, and a driven gear 24 is provided in the accommodating cavity of the box body, so that the external teeth 23 of the storage tray 2 are engaged with the driven gear 24, thereby increasing the rotation stability of the storage tray 2 and preventing the storage tray 2 from swinging when winding or releasing the line, causing the data cable 4 to become entangled.

[0042] Preferably, there are at least three driven gears 24 , and the three driven gears 24 are evenly arranged along the circumferential direction of the storage tray 2 .

[0043] The three driven gears 24 mesh with the outer teeth of the storage tray 2 from three directions, which can effectively ensure that the storage tray 2 does not wobble when rotating, thereby ensuring the smooth rotation of the storage tray 2.

[0044] In one embodiment, the structure of the telescopic cable box is improved to ensure that the cable is not wound too fast and thus does not hit the hand. Specifically, an escapement mechanism is provided in the cable box.

[0045] In this embodiment, in order to avoid excessive rebound force of the mainspring 3 after the data cable 4 is stretched, resulting in hitting the hand when winding the cable, an escapement mechanism is provided in the box body. The escapement mechanism can effectively avoid the situation of winding the cable too hard. At the same time, the escapement mechanism can also keep the data cable 4 at a certain pulled-out length, which greatly facilitates the user's use.

[0046] In one embodiment, the structure of the escapement mechanism is improved to ensure that the rapid rotation of the storage tray 2 is limited. Specifically, the escapement mechanism includes an escapement pendulum 25 and an escapement boss 26. The housing cavity of the box body is provided with a pendulum shaft, and the escapement pendulum 25 can rotate around the pendulum shaft. The escapement pendulum 25 includes a guide portion 251 and a limit portion 252. The escapement boss 26 is provided on the storage tray 2, and is provided with a guide groove. The outer side of the escapement boss 26 is provided with a limit protrusion 261.

[0047] When the rotation speed of the storage tray 2 exceeds a preset value, the guide groove of the escapement boss 26 drives the limiting portion 252 of the escapement pendulum 25 to approach the escapement boss 26 and is blocked by the limiting protrusion 261 .

[0048] In this embodiment, the escapement mechanism includes an escapement pendulum 25 and an escapement boss 26. The housing cavity of the box body is provided with a pendulum shaft. Specifically, the pendulum shaft is provided on the upper cover 11. The escapement pendulum 25 can rotate around the pendulum shaft. The escapement pendulum 25 includes a guide portion 251 and a limit portion 252. The escapement boss is provided on the storage tray 2. The escapement boss 26 is provided with a guide groove. The outer side of the escapement boss 26 is provided with a limit protrusion 261. By rotating the storage tray 2, the guide portion 251 of the escapement pendulum 25 can be driven into different guide grooves, thereby achieving the functions of winding, length maintenance, or preventing the storage tray from rotating too quickly. The guide grooves specifically include a release guide groove 262, a limit guide groove 263, and a retaining guide groove 264. The release guide groove 262 is provided on the inner side of the limit guide groove 263 and the retaining guide groove 264. A guide block 265 is provided between the limit guide groove 263 and the retaining guide groove 264.

[0049] When the storage tray 2 rotates at a speed exceeding a preset speed, the guide portion 251 of the escapement pendulum 25 enters the limiting guide groove 263, causing the limiting portion 252 of the escapement pendulum 25 to fit the outer side of the escapement boss 26 and be blocked by the limiting protrusion 261, thereby preventing the storage tray 2 from rotating too fast.

[0050] When the data cable 4 needs to be kept at a certain length, the data cable 4 is pulled or retracted by a small movement, and the guide block 265 cooperates with the guide portion 251 of the escapement pendulum 25 to enter the retaining guide groove 264. The retaining guide groove 264 can limit the rotation of the storage tray 2 in the retracting direction, thereby keeping the data cable 4 at a certain length.

[0051] When the data cable 4 needs to be stored, the data cable 4 is pulled out a certain distance so that the guide part 251 of the escapement pendulum block 25 enters the release guide groove 262, and the limiting part 252 of the escapement pendulum block 25 is away from the outside of the escapement boss 26. At this time, the limiting protrusion 261 will not block the limiting part 252 of the escapement pendulum block 25, and the mainspring 3 can drive the storage tray 2 to continue rotating to recycle the data cable 4.

[0052] In one embodiment, the structure of the spring pin group 211 is improved to ensure the stability of the connection between the spring pin group 211 and the annular contact group 122. Specifically, there are two spring pin groups 211, and the two spring pin groups 211 are symmetrical with the fixed column as the center.

[0053] In this embodiment, in order to ensure the reliability and stability of the connection between the spring pin group 211 and the annular contact group 122, two spring pin groups 211 are provided on the storage tray PCB 21, and the two spring pin groups 211 are symmetrical with the fixed column as the center of the circle. This allows the spring pin groups 211 to more evenly abut the annular contact group 122 fixed to the PCB 121, thereby ensuring the stability of the connection between the spring pin groups 211 and the annular contact group 122.

[0054] In one embodiment, the structure of the spring pin assembly 211 is improved to ensure the reliability of the connection between the spring pin assembly 211 and the annular contact assembly 122. Specifically, the spring pin assembly 211 includes multiple spring pins, each of which includes a main body and a needle head. A spring is provided in the main body, and the needle head abuts against the top end of the spring.

[0055] In this embodiment, the main body of the spring needle is a hollow structure, and a needle opening is provided at the top of the main body. The needle can extend from the needle opening to the outside of the main body. Due to the size of the needle opening, the needle cannot escape from the main body. The spring applies an outward elastic force to the needle to ensure that the needle fits with the corresponding annular contact, thereby ensuring the reliability of the connection between the spring needle group and the annular contact group.

[0056] Preferably, the tip of the needle is hemispherical.

[0057] In one embodiment, the structure of the storage tray 2 is improved to ensure the reliability and stability of the connection between the storage tray PCB 21 and the storage tray 2. Specifically, the storage tray 2 is provided with a limiting post, and the storage tray PCB 21 is provided with a limiting hole corresponding to the limiting post.

[0058] In this embodiment, in order to ensure the consistency of rotation of the storage tray 2 and the storage tray PCB 21, the storage tray 2 is provided with a limit column, and the storage tray PCB 21 is provided with a limit hole corresponding to the limit column. Through the matching limit column and limit hole, the storage tray PCB 21 can ensure the consistency of rotation with the storage tray 2, thereby ensuring the reliability and stability of the connection between the storage tray PCB 21 and the storage tray 2.

[0059] From the above description, it can be seen that the beneficial effects of the utility model are: providing a retractable wire box with a reasonable structure, which includes a box body, a storage tray, a spring and a data cable, the box body is provided with a accommodating cavity, a fixed column is provided in the accommodating cavity, the storage tray and the spring are sleeved on the fixed column, the data cable is wrapped around the storage tray, and the box body is provided with a data cable opening corresponding to the data cable; the storage tray can rotate along the fixed column, one end of the spring is connected to the storage tray, and the other end of the spring is connected to the fixed column, the storage tray is provided with a storage tray PCB, the lower cover is provided with a fixed PCB, the storage tray PCB is provided with a spring pin group, the data cable is electrically connected to the spring pin group through the storage tray PCB, the fixed PCB is provided with an annular contact group corresponding to the spring pin group, the spring pin group abuts against the annular contact group, the contact is softer, the signal current transmission is more reliable, and the service life is longer.

[0060] It is easy for those skilled in the art to understand that the above embodiments can be freely combined and superimposed without conflict.

[0061] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A telescopic wire box, characterized in that: The device comprises a box body, a storage tray, a spring and a data cable. The box body is provided with a receiving cavity, a fixing post is provided in the receiving cavity, the receiving tray and the spring are sleeved on the fixing post, the data cable is wound around the receiving tray, and the box body is provided with a data cable opening corresponding to the data cable. The box body comprises an upper cover and a lower cover. The storage tray can rotate along the fixed column, one end of the mainspring is connected to the storage tray, and the other end of the mainspring is connected to the fixed column. The storage tray is provided with a storage tray PCB, and the lower cover is provided with a fixed PCB. The storage tray PCB is provided with a spring pin group, and the data line is electrically connected to the spring pin group through the storage tray PCB. The fixed PCB is provided with an annular contact group corresponding to the spring pin group, and the spring pin group abuts against the annular contact group.

2. The telescopic wire box according to claim 1, characterized in that: The outer side of the storage tray is provided with external teeth, and the box body is provided with a driven gear, and the driven gear is engaged with the external teeth of the storage tray.

3. The telescopic wire box according to claim 2, characterized in that: There are at least three driven gears, and the three driven gears are evenly arranged along the circumferential direction of the storage tray.

4. The telescopic wire box according to claim 1, characterized in that: An escapement mechanism is provided in the box body.

5. The telescopic wire box according to claim 4, characterized in that: The escapement mechanism includes an escapement pendulum and an escapement boss. The accommodating cavity of the box body is provided with a pendulum shaft. The escapement pendulum can rotate around the pendulum shaft. The escapement pendulum includes a guide portion and a limit portion. The escapement boss is arranged on the storage tray, and is provided with a guide groove. The outer side of the escapement boss is provided with a limit protrusion. When the rotation speed of the storage tray exceeds a preset value when winding the line, the guide groove of the escapement boss can drive the limiting portion of the escapement pendulum block to approach the escapement boss and be blocked by the limiting protrusion.

6. The telescopic wire box according to claim 5, characterized in that: The guide groove includes a release guide groove, a limit guide groove and a retaining guide groove, and the release guide groove is arranged on the inner side of the limit guide groove and the retaining guide groove.

7. The telescopic wire box according to claim 1, characterized in that: There are two groups of elastic needle groups, and the two groups of elastic needle groups are symmetrical with the fixed column as the center of the circle.

8. The telescopic wire box according to claim 6, characterized in that: The elastic needle group includes a plurality of elastic needles, each of which includes a main body and a needle head. A spring is provided in the main body, and the needle head abuts against the top end of the spring.

9. The telescopic wire box according to claim 8, characterized in that: The top of the needle is hemispherical.

10. The telescopic wire box according to claim 1, characterized in that: The storage tray is provided with a limiting column, and the storage tray PCB is provided with a limiting hole corresponding to the limiting column.

Images