Flexible circuit board unwinding device

Abstract

The utility model relates to a flexible circuit board unwinding device which comprises a winding box, a winding roller rotatably connected with an inner cavity of the winding box, a reset torsion spring rotatably connected with the outer wall of the winding roller, a top plate fixedly assembled at the top of the winding box, a ratchet wheel fixedly assembled at the top of the winding roller, a rotating wheel installed at the top of the ratchet wheel, a locking groove formed in the outer wall of the ratchet wheel, and a supporting column rotatably connected with the top of the top plate. The outer wall of the supporting column is rotatably connected with a locking torsion spring and a locking plate, the outer wall of the locking plate is fixedly provided with a pulling plate, the inner wall of the winding box is rotatably connected with a guiding shaft, the outer wall of the winding box is rotatably connected with a guiding shaft, and the outer wall of the winding roller is rotatably connected with a circuit board body. The flexible circuit board unwinding device can prevent the outer wall of the circuit board body from directly generating friction with the outer wall of the winding box.

Description

Technical Field

[0001] This utility model relates to the field of flexible circuit board technology, specifically a flexible circuit board unwinding device. Background Technology

[0002] Flexible printed circuit boards (FPCBs) offer numerous advantages, including space saving, weight reduction, and high flexibility, leading to a year-on-year increase in global demand. Their unique characteristics make them a viable alternative to rigid circuit boards and traditional wiring solutions in various applications, while also driving the development of many new fields.

[0003] Traditional flexible circuit boards require pulling them out during use. During this process, the outer wall of the circuit board may come into excessive contact with the outer wall of the storage box, causing excessive bending of the outer wall of the flexible circuit board. This can easily lead to breakage and damage at the joints of the flexible circuit board, thus affecting its normal use. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a flexible circuit board unwinding device, which has the advantages of guiding circuit boards and being easy to use, thus solving the problems mentioned in the background art.

[0005] This utility model provides the following technical solution: a flexible circuit board unwinding device, including a winding box, a winding roller rotatably connected to the inner cavity of the winding box, a return torsion spring rotatably connected to the outer wall of the winding roller, a top plate fixedly mounted on the top of the winding box, a ratchet fixedly mounted on the top of the winding roller, a rotating wheel mounted on the top of the ratchet, a locking groove formed on the outer wall of the ratchet, a support column rotatably connected to the top of the top plate, a locking torsion spring rotatably connected to the outer wall of the support column, a locking plate rotatably connected to the outer wall of the support column, a pull plate fixedly mounted on the outer wall of the locking plate, a guide shaft rotatably connected to the inner wall of the winding box, a guide shaft rotatably connected to the outer wall of the winding box, and a circuit board body rotatably connected to the outer wall of the winding roller.

[0006] As a preferred technical solution of this utility model: the two ends of the outer wall of the reset torsion spring are respectively inserted into the outer walls of the take-up roller and the top plate.

[0007] As a preferred technical solution of this utility model: the outer wall shape of the locking plate matches the outer wall shape of the locking groove.

[0008] As a preferred technical solution of this utility model: the two ends of the outer wall of the locking torsion spring are respectively inserted into the outer walls of the locking plate and the top plate.

[0009] As a preferred technical solution of this utility model: both the guide shaft and the guide shaft are made of natural rubber, and the circuit board body passes through the outer wall of the take-up box and is rotatably connected to the outer wall of the take-up roller.

[0010] As a preferred embodiment of this utility model, the outer diameter of the rotating wheel is smaller than the outer diameter of the ratchet.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. The flexible circuit board unwinding device, by setting guide shafts on the inner and outer walls of the winding box, can minimize contact between the outer wall of the circuit board body and the outer wall of the winding box under the action of the guide shafts, thereby avoiding direct friction between the outer wall of the circuit board body and the outer wall of the winding box, thus avoiding damage to the circuit board body, and better releasing the circuit board body under the action of the guide shafts.

[0013] 2. The flexible circuit board unwinding device uses a ratchet on the top of the winding roller. Under the action of the ratchet and the locking plate, the winding roller can only rotate in one direction, thereby releasing the circuit board body. This allows the circuit board body to be released according to the actual length used, avoiding the circuit board being completely exposed. The circuit board is pulled out to the required length, thus achieving the release of the circuit board. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of a preferred embodiment of the present invention;

[0015] Figure 2 for Figure 1 Schematic diagram of the structure of the roll-up box;

[0016] Figure 3 for Figure 2 Schematic diagram of the winding roll structure;

[0017] Figure 4 for Figure 2 Schematic diagram of the guide shaft structure;

[0018] Figure 5 for Figure 2 Schematic diagram of the ratchet structure.

[0019] In the diagram: 1. Take-up box; 2. Take-up roller; 3. Reset torsion spring; 4. Top plate; 5. Ratchet; 6. Rotating wheel; 7. Locking groove; 8. Support column; 9. Locking torsion spring; 10. Locking plate; 11. Pull plate; 12. Guide shaft; 13. Guide shaft; 14. Circuit board body. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1 - Figure 5 A flexible circuit board unwinding device includes a winding box 1, a winding roller 2 rotatably connected to the inner cavity of the winding box 1, a return torsion spring 3 rotatably connected to the outer wall of the winding roller 2, a top plate 4 fixedly mounted on the top of the winding box 1, a ratchet 5 fixedly mounted on the top of the winding roller 2, a rotating wheel 6 mounted on the top of the ratchet 5, and a locking groove 7 formed on the outer wall of the ratchet 5. A support column 8 rotatably connected to the top of the top plate 4, a locking torsion spring 9 rotatably connected to the outer wall of the support column 8, a locking plate 10 rotatably connected to the outer wall of the support column 8, and a pull plate 11 fixedly mounted on the outer wall of the locking plate 10. A guide shaft 12 rotatably connected to the inner wall of the winding box 1, a guide shaft 13 rotatably connected to the outer wall of the winding box 1, and a circuit board body 14 rotatably connected to the outer wall of the winding roller 2.

[0022] In the above structure, the reset torsion spring 3 is provided on the outer wall of the take-up roller 2. When the circuit board body 14 is pulled, the circuit board body 14 will drive the take-up roller 2 to rotate, thereby torsioning the reset torsion spring 3. After the reset torsion spring 3 is torsion, it can provide reset power to the take-up roller 2 to roll the circuit board body 14 onto the outer wall of the take-up roller 2, thereby achieving the take-up of the circuit board body 14.

[0023] In a preferred embodiment, the two ends of the outer wall of the reset torsion spring 3 are respectively inserted into the outer walls of the take-up roller 2 and the top plate 4, and the reset torsion spring 3 is made of high carbon steel.

[0024] In the above structure, by inserting the two ends of the reset torsion spring 3 into the inner cavities of the take-up roller 2 and the top plate 4 respectively, the reset torsion spring 3 can provide elastic force for the reset of the circuit board body 14 under the action of the reset torsion spring 3. When the take-up roller 2 is rotated, the reset torsion spring 3 is twisted. When the circuit board body 14 needs to be retracted, by releasing the lock plate 10 from the ratchet 5, the take-up roller 2 can be reset under the action of the reset torsion spring 3, so as to realize the take-up of the circuit board body 14.

[0025] In a preferred embodiment, the outer wall shape of the locking plate 10 matches the outer wall shape of the locking groove 7, and both the ratchet 5 and the locking plate 10 are made of stainless steel.

[0026] In the above structure, the locking plate 10 and the locking torsion spring 9 are provided on the outer wall of the support column 8. Under the action of the locking torsion spring 9, the locking plate 10 can be rotated, so that the outer wall of the locking plate 10 enters the inner cavity of the locking groove 7, so that the winding roller 2 can only rotate in one direction. During the unidirectional rotation of the winding roller 2, the circuit board body 14 is released. When winding the circuit board body 14, the pull plate 11 is pulled to separate the locking plate 10 from the ratchet 5.

[0027] In a preferred embodiment, the two ends of the outer wall of the locking torsion spring 9 are respectively inserted into the outer walls of the locking plate 10 and the top plate 4, and the locking torsion spring 9 is made of high carbon steel.

[0028] In the above structure, the locking torsion spring 9 installed on the outer wall of the support column 8 can drive the locking plate 10 under the action of the locking torsion spring 9, so that the outer wall of the locking plate 10 fits against the outer wall of the ratchet 5, thereby realizing the limiting and locking of the ratchet 5, so that the winding roller 2 can only rotate in one direction to release the circuit board body 14.

[0029] In a preferred embodiment, both the guide shaft 13 and the guide shaft 12 are made of natural rubber, and the circuit board body 14 is rolled and connected to the outer wall of the take-up roller 2 through the outer wall of the take-up box 1.

[0030] In the above structure, the guide shaft 12 and guide shaft 13 provided on the rewind box 1 can guide the circuit board body 14 under the action of the guide shaft 12 and guide shaft 13, thereby preventing the outer wall of the circuit board body 14 from contacting the outer wall of the rewind box 1, thereby preventing the outer wall of the rewind box 1 from damaging the outer wall of the circuit board body 14.

[0031] In a preferred embodiment, the outer diameter of the rotating wheel 6 is smaller than the outer diameter of the ratchet 5, and the rotating wheel 6 is made of stainless steel.

[0032] In the above structure, by using the rotating wheel 6 set on the top of the ratchet 5, when the circuit board body 14 is wound up, the pull plate 11 is pulled, and the winding roller 2 is driven to rotate and reset under the action of the reset torsion spring 3, thereby realizing the winding up of the circuit board body 14. This allows the circuit board body 14 to be wound up in a timely manner after use.

[0033] Working principle: During use, when the circuit board body 14 is needed, the circuit board body 14 is pulled, causing the take-up roller 2 to rotate. This causes the take-up roller 2 to rotate within the take-up box 1. As the take-up roller 2 rotates, it causes the reset torsion spring 3 to twist. After the reset torsion spring 3 is twisted, it generates a certain reset force. When the take-up roller 2 releases the circuit board body 14, the ratchet 5 rotates along with the take-up roller 2. At this time, the locking plate 10 will lock the torsion spring 9. The locking plate 10 is attached to the outer wall of the ratchet 5, thus restricting the ratchet 5 to rotate only in one direction, releasing the circuit board body 14. When the circuit board body 14 is released outwards, its outer wall contacts the outer walls of the guide shafts 12 and 13, guiding it and preventing excessive bending that could affect its normal use. When the circuit board body 14 needs to be wound up, pulling the pull plate 11 separates the outer wall of the locking plate 10 from the outer wall of the ratchet 5. The winding roller 2 then resets under the action of the reset torsion spring 3, thus winding up the circuit board body 14.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A flexible circuit board unwinding device, comprising a winding box (1), characterized in that: The inner cavity of the take-up box (1) is rotatably connected to a take-up roller (2), the outer wall of the take-up roller (2) is rotatably connected to a reset torsion spring (3), the top of the take-up box (1) is fixedly mounted with a top plate (4), the top of the take-up roller (2) is fixedly mounted with a ratchet (5), the top of the ratchet (5) is mounted with a rotating wheel (6), the outer wall of the ratchet (5) is provided with a locking groove (7), the top of the top plate (4) is rotatably connected to a support column (8), the outer wall of the support column (8) is rotatably connected to a locking torsion spring (9), the outer wall of the support column (8) is rotatably connected to a locking plate (10), the outer wall of the locking plate (10) is fixedly mounted with a pull plate (11), the inner wall of the take-up box (1) is rotatably connected to a guide shaft (12), the outer wall of the take-up box (1) is rotatably connected to a guide shaft (13), and the outer wall of the take-up roller (2) is rotatably connected to a circuit board body (14).

2. The flexible circuit board unwinding device according to claim 1, characterized in that: The two ends of the outer wall of the reset torsion spring (3) are respectively inserted into the outer walls of the winding roller (2) and the top plate (4).

3. The flexible circuit board unwinding device according to claim 1, characterized in that: The outer wall shape of the locking plate (10) matches the outer wall shape of the locking groove (7).

4. The flexible circuit board unwinding device according to claim 1, characterized in that: The two ends of the outer wall of the locking torsion spring (9) are respectively inserted into the outer walls of the locking plate (10) and the top plate (4).

5. The flexible circuit board unwinding device according to claim 1, characterized in that: Both the guide shaft (13) and the guide shaft (12) are made of natural rubber. The circuit board body (14) passes through the outer wall of the take-up box (1) and is rolled to the outer wall of the take-up roller (2).

6. The flexible circuit board unwinding device according to claim 1, characterized in that: The outer diameter of the rotating wheel (6) is smaller than the outer diameter of the ratchet (5).

Images