CN213231057U - Flexible circuit board winding and unwinding device - Google Patents

Abstract

The utility model discloses a flexible circuit board winding and unwinding device, which belongs to the field of flexible circuit board winding and unwinding, and adopts the technical scheme that the flexible circuit board winding and unwinding device comprises a winding and unwinding device body, an upper shell, a lower shell, a flexible circuit board, a volute spiral spring and a clamping block, wherein a pull rod connected with the flexible circuit board is inserted into a limiting groove of the lower shell, the other end of the flexible circuit board is clamped through a through groove and the clamping block, the limiting groove of the upper shell corresponds to the upper end of the pull rod, a central shaft of the lower shell corresponds to a notch of the upper shell, and a first lug corresponds to a first groove; the second bump corresponds to the second groove; the outer wall corresponds the groove, closes the casing and puts the device on to the book, reaches the convenient purpose of installation, and effect that can use repeatedly again.

Description

Flexible circuit board winding and unwinding device

Technical Field

The utility model relates to a field is put to the flexible circuit board book, in particular to device is put to flexible circuit board book.

Background

The flexible printed circuit board is mainly made of a polyimide copper clad plate, the flexible printed circuit board is usually coiled by utilizing the soft characteristic of the flexible printed circuit board in the storage process, a volute spiral spring is utilized to coil in the prior art, some coiling devices are inconvenient to install when the volute spiral spring is utilized to coil, and some coiling devices cannot be reused.

SUMMERY OF THE UTILITY MODEL

To the not enough of prior art existence, the utility model discloses an above-mentioned technical purpose can realize through following technical scheme: a flexible circuit board coiling and uncoiling device comprises a coiling and uncoiling device body, an upper shell, a lower shell, a flexible circuit board, a volute spring and a clamping block, wherein a central shaft is fixedly arranged at the central position of the lower shell, a convex block is arranged on the excircle of the central shaft, a notch corresponding to the central shaft is arranged at the central position of the upper shell, the volute spring is respectively and spirally arranged at the position of the upper shell and the position of the lower shell, which are far away from the central shaft, and is fixedly connected with the central shaft and a notch outer ring, an inner wall is arranged at the position of the lower shell, which is far away from the volute spring, a limiting ring is arranged at the position of the upper shell, a through hole is arranged in one side of the limiting ring of the upper shell and the bottom of the inner wall of the lower shell, a section of the inner wall is a cavity, be equipped with the through-hole on the stopper, the stopper is close to open-ended one side both sides and is equipped with the baffle to as an organic whole with the inner wall, the stopper is close to open-ended position, and the inboard combination of baffle is the constant head tank, be equipped with the fixture block in the constant head tank, the opening gets into the cavity is passed to volute spring's one end, passes through-hole and fixture block fixed connection, fixture block central point puts and is equipped with the spacing groove to one side open-ended, the spacing inslot is equipped with the pull rod, pull rod fixed connection flexible circuit board, flexible circuit board's end-to-end connection has the clamp splice, be equipped with the pulley on the lateral surface of inner wall, go up casing and lower casing and keep away from the spacing collar and the inner wall interval is equipped with outer spacing collar and outer wall.

Furthermore, the position of the inner wall far away from the limiting groove is an inclined plane.

Furthermore, the size of the clamping block is larger than that of the opening, and the clamping block is perpendicular to the opening.

Furthermore, the diameter of the limiting groove is larger than that of the pull rod.

Furthermore, the end face, far away from the limiting block, of the baffle is an inward inclined face I.

To sum up, the utility model discloses following beneficial effect has:

this kind of device is put to flexible circuit board book, at first the spacing groove of casing is inserted under the pull rod correspondence of connecting flexible circuit board, and the other one end of flexible circuit board this moment is through running through the groove, the rethread clamp splice is tight, later the spacing groove that will go up the casing corresponds the upper end of pull rod, the center pin of casing corresponds the notch of casing under it, lug one corresponds first recess, the lug second corresponds the second recess, the outer wall corresponds the inslot, close the casing to put the device on to the book, reach the convenient purpose of installation, and the effect that can use repeatedly again.

Drawings

FIG. 1 is an overall structure diagram of the present invention;

FIG. 2 is a structural view of the upper case of the present invention;

fig. 3 is a top view of the upper housing of the present invention;

FIG. 4 is a structural diagram and a top view of the lower housing of the present invention;

FIG. 5 is an enlarged view of the fixture block of the present invention;

fig. 6 is a drawing of the connection of the pull rod of the present invention.

In the figure: the winding and unwinding device comprises a winding and unwinding device body 1, an upper shell 2, a lower shell 3, a flexible circuit board 4, a volute spiral spring 5, a clamping block 6, a central shaft 7, a projection 8, an inner wall 9, a limiting ring 10, an opening 11, a cavity 12, an opening 13, a limiting block 14, a through hole 15, a baffle 16, a positioning groove 17, a clamping block 18, a limiting groove 19, a pull rod 20, a pulley 21, an outer limiting ring 22, an outer wall 23, a penetrating groove 24, an inclined plane 25, a first inclined plane 26, a notch 27, a first groove 28, a first projection 29, a second groove 30, a groove 31, a second projection 32, a storage cavity 33 and a cover plate 34.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, a flexible circuit board reeling and unreeling device includes a reeling and unreeling device body 1, an upper casing 2, a lower casing 3, a flexible circuit board 4, a volute spiral spring 5 and a clamping block 6, and is characterized in that: the center of the lower shell 3 is fixedly provided with a center shaft 7, a convex block 8 is arranged on the excircle of the center shaft 7, a notch 27 corresponding to the center shaft 7 is arranged at the center of the upper shell 2, the positions of the upper shell 2 and the lower shell 3, which are far away from the center shaft 7, are respectively provided with a volute spring 5 in a spiral manner and fixedly connected with the center shaft 7 and a notch 27 outer ring, the position of the lower shell 3, which is far away from the volute spring 5, is provided with an inner wall 9, the position of the upper shell 2, which is far away from the volute spring 5, is provided with a spacing ring 10, one sides of the spacing ring 10 of the upper shell 2 and the inner wall 9 of the lower shell 3 are respectively provided with an opening 11, the inside of the opening 11 is provided with a section of the inner wall 9, the position of the outer side of the bottom of the inner wall 9, which, the two sides of one side of the limiting block 14 close to the opening 13 are provided with baffle plates 16 and integrated with the inner wall 9, the position of the limiting block 14 close to the opening 13 is combined into a positioning groove 17, a clamping block 18 is arranged in the positioning groove 17, one end of the volute spiral spring 5 penetrates through the through hole 11 to enter the cavity 12 and penetrates through the through hole 15 to be fixedly connected with the clamping block 18, a limiting groove 19 with an opening towards one side is arranged at the central position of the clamping block 18, a pull rod 20 is arranged in the limiting groove 19, the pull rod 20 is fixedly connected with the flexible circuit board 4, the tail end of the flexible circuit board 4 is connected with the clamping block 6, a pulley 21 is arranged on the outer side surface of the inner wall 9, an outer limiting ring 22 and an outer wall 23 are arranged on the upper shell 2 and the lower shell 3 far away from the limiting ring 10 and the inner wall 9 at intervals, the intervals are storage cavities 33, and, the position that spacing groove 19 was kept away from to inner wall 9 is inclined plane 25, the size of clamp splice 6 is bigger than opening 13 one, and sets up perpendicularly with opening 13, the diameter ratio pull rod 20's of spacing groove 19 diameter is big, the terminal surface that stopper 14 was kept away from to baffle 16 is an inward inclined plane 26, it is equipped with notch 27 that corresponds with center pin 7 to go up 2 central point of casing to put, the 9 tops of inner wall of casing 3 are equipped with first recess 28 down, be equipped with lug 29 that corresponds with first recess 28 on the spacing collar 10, be equipped with second recess 30 on the outer wall 23 of casing 3 down, be equipped with groove 31 between outer spacing collar 22 and the spacing collar 10, be equipped with lug two 32 in the groove 31, all be equipped with apron 34 and be close to the top laminating setting of volute spiral spring 5 around center pin 9, notch 27.

The circuit board rolling and releasing device is implemented according to the technical scheme, firstly, when the device is used, a connecting flexible circuit board 4 and a clamping block 6 are pulled out together, in the process, the flexible circuit board 4 retracts from a storage cavity 12 to pull a pull rod 20, the pull rod 20 is inserted as a pin corresponding to a limiting groove 19 of a lower shell 3, the limiting groove 19 is arranged on a clamping block 18, the clamping block 18 is pulled into a positioning groove 17 by a volute spring 5 in a normal state, a baffle plate 16 limits the clamping block 18, an inclined surface 25 of the baffle plate 16 can guide the clamping block 18 to the positioning groove 17, an inclined surface 26 close to an opening 13 on the inner wall is also the same, a limiting block 14 is arranged at the front end of the positioning groove 17 and can block the clamping block 18, one end of the volute spring 5 is connected with the clamping block 18, a section of the cavity 12 penetrating through the inner wall 9 is provided with a through hole 11 again and extends, spirals and retracts to a central shaft 7 to, in the drawing process, the central shaft 7 and the projection 8 around the notch 27 are used for guiding to prevent the scroll spring 5 from being attached and immovable, the pulleys 21 are arranged around the inner wall 9 and the limiting ring 10 to prevent the flexible circuit board 4 from being attached too tightly and immovable and from rubbing against the inner wall 9 and the limiting ring 10, when a new flexible circuit board is required to be installed in the winding and placing device, the flexible circuit board 4 connected with the pull rod 20 is inserted into the coil along the central shaft 7 and placed in the storage cavity 33, and the other end of the flexible circuit board 4 is clamped by the through groove 24 and the clamping block 6, then the limiting groove 19 of the upper shell 2 corresponds to the upper end of the pull rod 20, the central shaft 7 of the lower shell 3 corresponds to the notch 27 of the upper shell 2, the first projection 29 corresponds to the first groove 28, the second projection 32 corresponds to the second groove 30, and the outer wall 23 corresponds to the groove 31, close casing 2 to put on the device body 1 to the book, reach the convenient purpose of installation, and effect that can use repeatedly again, wherein apron 34 is fixed near volute spiral spring 5 around center pin 7 and notch 27 respectively, and with the medial surface of inner wall 9, the medial surface fixed connection of spacing collar 10 for volute spiral spring 5 has a cavity, guarantees that it is interior activity in the cavity.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims (7)

1. The utility model provides a device is put to flexible circuit board book, puts device body (1), upper casing (2), lower casing (3), flexible circuit board (4), spiral spring (5), clamp splice (6) including rolling up, its characterized in that: the lower casing (3) is fixedly provided with a central shaft (7) at the central position, a convex block (8) is arranged on the excircle of the central shaft (7), a notch (27) corresponding to the central shaft (7) is arranged at the central position of the upper casing (2), a volute spiral spring (5) is respectively arranged at the position of the upper casing (2) and the lower casing (3) far away from the central shaft (7) and is fixedly connected with the central shaft (7) and a notch (27) outer ring, an inner wall (9) is arranged at the position of the lower casing (3) far away from the volute spring (5), a limit ring (10) is arranged at the position of the upper casing (2) far away from the volute spring (5), a through hole (11) is respectively arranged in one side of the bottoms of the limit ring (10) of the upper casing (2) and the inner wall (9) of the lower casing (3), and inside the through hole (11), one section, the position that inner wall (9) bottom lateral surface is close to opening (11) is equipped with opening (13), one side of opening (13) is equipped with stopper (14) for inner wall (9) position, be equipped with through-hole (15) on stopper (14), one side both sides that stopper (14) are close to opening (13) are equipped with baffle (16), and as an organic whole with inner wall (9), stopper (14) are close to the position of opening (13), and the inboard combination of baffle (16) is constant head tank (17), be equipped with fixture block (18) in constant head tank (17), the one end of volute spiral spring (5) is passed through opening (11) and is got into cavity (12), passes through-hole (15) and fixture block (18) fixed connection, fixture block (18) central point is equipped with one side open-ended spacing groove (19), be equipped with pull rod (20) in spacing groove (19), pull rod (20) fixed connection flexible circuit board (4), the end-to-end connection of flexible circuit board (4) has clamp splice (6), be equipped with pulley (21) on the lateral surface of inner wall (9), go up casing (2) and casing (3) down and keep away from spacing collar (10) and inner wall (9) interval and be equipped with outer spacing collar (22) and outer wall (23), the interval is storage cavity (33), outer spacing collar (22) and outer wall (23) correspond the position that is close to opening (13) and are equipped with and run through groove (24).

2. The flexible circuit board reeling and unreeling device according to claim 1, characterized in that: the position of the inner wall (9) far away from the limiting groove (19) is an inclined plane (25).

3. The flexible circuit board reeling and unreeling device according to claim 1, characterized in that: the size of the clamping block (6) is larger than that of the opening (13), and the clamping block is perpendicular to the opening (13).

4. The flexible circuit board reeling and unreeling device according to claim 1, characterized in that: the diameter of the limiting groove (19) is larger than that of the pull rod (20).

5. The flexible circuit board reeling and unreeling device according to claim 1, characterized in that: the end face, far away from the limiting block (14), of the baffle (16) is an inward first inclined face (26).

6. The flexible circuit board reeling and unreeling device according to claim 1, characterized in that: inner wall (9) top of casing (3) is equipped with first recess (28) down, be equipped with on spacing collar (10) with first recess (28) corresponding lug one (29), be equipped with second recess (30) on outer wall (23) of casing (3) down, be equipped with between spacing collar (22) and spacing collar (10) groove (31), be equipped with lug two (32) in groove (31).

7. The flexible circuit board reeling and unreeling device according to claim 1, characterized in that: and cover plates (34) are arranged around the central shaft (7) and the notches (27) and are attached to the upper side of the volute spiral spring (5).

Images