FPC connector convenient to plug and unplug

Abstract

The utility model relates to a kind of FPC connectors convenient to plug of connector field, including shell, the upper surface center of shell is equipped with slot, the inner cavity of slot is evenly provided with terminal, the upper surface rear end of shell is equipped with color change stroke indicating strip, the top of slot is evenly provided with guide roller, guide roller is rotationally connected with the upper surface of shell at corresponding place, the inner cavity both sides of slot are slidably connected with sliding block, the upper surface of sliding block is threadedly connected with threaded rod, the inner end of threaded rod is equipped with side clamping plate, the upper center of the outside of shell is rotationally connected with round connecting plate, the front upper portion of round connecting plate is equipped with force arm, the inner cavity both sides of shell are equipped with communication groove, the inner upper center of communication groove is rotationally connected with driving wheel, driving wheel is coaxially connected between corresponding round connecting plate, the upper surface of driving wheel is engaged with driven wheel, the bottom of driven wheel is equipped with lead screw.

Description

Technical Field

[0001] This utility model relates to the field of connectors, specifically to an FPC connector that is easy to plug and unplug. Background Technology

[0002] FPC connectors are widely used in various electronic devices to achieve electrical connections between flexible printed circuit boards and other electronic components. They are especially common in automotive electronics and other devices that have high requirements for connection reliability and ease of maintenance. They are an important component to ensure stable signal transmission and effective structural assembly within electronic devices.

[0003] Existing FPC connectors have structural design deficiencies. They lack a dedicated assist mechanism, making it difficult for operators or automated equipment to find a suitable point of force application when the connector is in a confined space inside the equipment, resulting in inconvenient FPC insertion and removal operations. At the same time, traditional FPC connectors lack a structure that can intuitively display the insertion and removal stroke, failing to provide clear stroke feedback during the insertion and removal process. This makes it easy for problems such as plastic deformation of the terminals and cracking of the shell to occur due to improper force control or inaccurate judgment of insertion depth during operation, affecting the reliability and service life of the connector. Utility Model Content

[0004] The purpose of this invention is to address the above-mentioned shortcomings and provide an FPC connector that is easy to insert and remove. The connector includes a force arm, a driving wheel, a driven wheel, a lead screw, and a sliding plate, which smoothly converts the vertical pressing force into the horizontal traction force, allowing the FPC to be smoothly inserted into the connector. This solves the technical problem in the prior art where it is difficult for operators or automated equipment to find a suitable force point when the connector is in a narrow space inside the equipment, resulting in inconvenient FPC insertion and removal operations.

[0005] The objective of this utility model is achieved through the following means:

[0006] An easy-to-plug FPC connector includes a housing. A slot is formed at the center of the upper surface of the housing. Terminals are evenly arranged within the cavity of the slot. A color-changing travel indicator strip is installed at the rear end of the upper surface of the housing. Guide rollers are provided around the top of the slot, and these guide rollers are rotatably connected to corresponding points on the upper surface of the housing. Sliding blocks are slidably connected to both sides of the cavity of the slot. Threaded rods are threaded onto the upper surfaces of the sliding blocks, and side clamps are installed at the inner ends of the threaded rods. Circular connecting plates are rotatably connected to the upper center of the outer side of the housing. A force-applying arm is installed on the upper front of the circular connecting plate. A connecting groove is formed on both sides of the cavity of the housing. A drive wheel is rotatably connected to the upper center of the inner side of each connecting groove. The drive wheel is coaxially connected to the corresponding circular connecting plate. Driven wheels mesh with the upper surfaces of the drive wheels. A lead screw is installed at the bottom of each driven wheel. The driven wheel and the lead screw are rotatably connected to the housing and the corresponding connecting groove, respectively. A sliding plate is sleeved on the center of the surface of the lead screw, and the sliding plate is connected to the corresponding sliding block.

[0007] Align the FPC to be connected with the slot opening in the center of the upper surface of the housing, so that the gold finger area of ​​the FPC is precisely aligned with the terminal positions evenly added inside the slot opening, ensuring that the terminals can effectively contact the gold fingers of the FPC during subsequent insertion.

[0008] The operator or automated equipment applies downward pressure to the lever arm installed on the upper front of the circular connecting plate; since the circular connecting plate is rotatably connected to the upper center of the outer side of the outer shell, the lever arm drives the circular connecting plate to rotate around its rotation axis after being subjected to force; since the drive wheel is coaxially connected to the corresponding circular connecting plate, the rotation of the circular connecting plate synchronously drives the drive wheel rotatably connected to the upper center of the inner side of the connecting groove on both sides of the inner cavity of the outer shell to rotate.

[0009] The upper surface of the driving wheel meshes with the driven wheel, and the rotation of the driving wheel drives the driven wheel to rotate in the opposite direction. A lead screw is installed at the bottom of the driven wheel, and the driven wheel is rotatably connected to the corresponding part of the outer casing, and the lead screw is rotatably connected to the corresponding part of the connecting groove. Therefore, the rotation of the driven wheel synchronously drives the lead screw to rotate. The sliding plate sleeved at the center of the lead screw surface is threaded with the lead screw and moves horizontally along the lead screw axis when the lead screw rotates.

[0010] The sliding plate is connected to the corresponding sliding block. The horizontal movement of the sliding plate causes the sliding block to slide synchronously on both sides of the inner cavity of the slot. The threaded rod connected to the upper surface of the sliding block is rotated to adjust the position of the side clamp plate installed at the inner end of the threaded rod, so that the side clamp plate fits against the two sides of the FPC and provides auxiliary limit for the insertion direction of the FPC. At the same time, when the FPC is inserted into the slot, the guide rollers that are rotatably connected to the upper surface of the outer shell around the top of the slot contact the edge of the FPC and roll with the FPC as it is inserted, converting sliding friction into rolling friction and guiding the FPC to smoothly enter the inner cavity of the slot.

[0011] During FPC insertion, a color-changing travel indicator strip mounted on the rear end of the upper surface of the housing provides real-time feedback on the insertion depth: Initially, the indicator strip displays red, indicating that the FPC has not reached the effective working position; as the FPC insertion depth increases, the movement of the sliding block synchronously pushes the color-changing component inside the indicator strip, and the color area of ​​the indicator strip gradually changes; when the FPC is inserted into the working position and the terminal forms stable contact with the FPC gold fingers, the indicator strip switches completely to green, sending an insertion signal to the operator or automated equipment; at this time, the force applied to the lever arm is stopped, and the FPC insertion operation is completed.

[0012] Furthermore, positioning grooves are provided around the upper surface of the outer shell, and locking holes are evenly provided around the inner wall of the positioning grooves.

[0013] The positioning groove provides a clear positioning reference for the installation of subsequent related components, which can quickly guide the components to be assembled to find the accurate installation position, reduce the position adjustment time during component installation, and improve assembly efficiency. The evenly spaced locking holes on the inner wall of the positioning groove can match the locking structure on the subsequent components, providing a structural basis for the locking and engagement between components, avoiding installation offset or positional wobbling of subsequent components in the positioning groove, and ensuring the positional stability of the components after assembly.

[0014] Furthermore, each of the inner cavities of the positioning groove is fitted with a positioning post, and elastic clips are evenly installed around the outer surface of the positioning post, with the elastic clips engaging with the corresponding clip holes.

[0015] The use of positioning pins and positioning slots further enhances the positioning effect between components, ensuring that each component is in its preset relative position after assembly. The snap-fit ​​connection structure between the elastic clip and the snap hole eliminates the need for additional fastening tools or connectors, enabling the positioning pin to be stably fixed in the positioning slot, simplifying the assembly process. At the same time, the elastic clip has a certain degree of elastic deformation capability, so when the positioning pin needs to be disassembled later, only a certain amount of external force needs to be applied to disassemble the elastic clip from the snap hole, facilitating the disassembly and maintenance of the components without damaging the structure of the positioning pin and positioning slot.

[0016] Furthermore, the center of the upper surface of the positioning post corresponds to the position of the corresponding guide roller, and the guide roller is rotatably connected to the upper surface of the positioning post.

[0017] The corresponding positional relationship between the center of the upper surface of the positioning post and the guide roller ensures that the guide roller is always in the preset guiding position during operation, avoiding the failure of the guiding function due to the positional deviation of the guide roller and ensuring guiding accuracy. The rotating connection between the guide roller and the upper surface of the positioning post allows the guide roller to convert sliding friction into rolling friction through its own rotation when it comes into contact with the guiding component. This greatly reduces the friction during the guiding process, reduces the wear between the component to be guided and the guide roller, extends the service life of both, and also makes the movement of the component to be guided smoother, improving the overall operational stability of the device.

[0018] Furthermore, limit grooves are provided on both sides of the inner wall of the outer shell, and limit blocks are slidably connected to the upper part of the inner cavity of the limit grooves, with the limit blocks connected to the corresponding sliding blocks.

[0019] The limiting grooves on both sides of the inner wall of the outer shell provide clear trajectory constraints for the movement of the limiting block, which can restrict the limiting block to slide only along the extension direction of the limiting groove, and prevent the limiting block from lateral deviation or shaking during movement. The connection structure between the limiting block and the sliding block can transfer the limiting effect of the limiting groove on the limiting block to the sliding block, thereby accurately limiting the movement trajectory of the sliding block, ensuring that the sliding block always slides stably in the preset direction during operation, preventing the overall working accuracy of the device from decreasing due to the deviation of the sliding block, and improving the reliability of the device operation.

[0020] Furthermore, a fixing plate is installed on the outer side of the upper surface of the sliding block, and a threaded hole is opened in the center of the front side of the fixing plate. The threaded rod is threadedly connected to the fixing plate through the threaded hole.

[0021] The fixing plate provides a stable support structure for the threaded rod installation, ensuring a reliable installation foundation for the threaded rod during operation and preventing the threaded rod from shaking due to unstable installation structure. The threaded hole at the center of the front of the fixing plate and the threaded rod are connected by threads. Utilizing the self-locking characteristic of the threaded connection, the threaded rod can be stably fixed in any adjustment position, preventing it from loosening during operation and ensuring the positional accuracy after adjustment. At the same time, the threaded rod can be adjusted to extend or retract from the fixing plate by rotating the threaded rod. The operation is simple and quick, and the extension length of the threaded rod can be flexibly adjusted according to actual working needs, improving the applicability and adjustment flexibility of the overall device.

[0022] The beneficial effects of this utility model are as follows: The circular connecting plate rotatably connected to the upper center of the outer side of the outer shell, the force arm installed on the upper front of the circular connecting plate, the active wheel rotatably connected to the upper inner side of the connecting groove on both sides of the inner cavity of the outer shell and coaxially connected to the circular connecting plate, the driven wheel meshing with the active wheel, the lead screw installed at the bottom of the driven wheel and rotatably connected to the outer shell and the connecting groove, and the sliding plate sleeved on the center of the lead screw surface and connected to the sliding block, together constitute a lever-type assist mechanism; when the force arm is pressed down, the force arm drives the circular connecting plate to rotate, which in turn drives the active wheel to rotate. The active wheel drives the driven wheel and the lead screw to rotate synchronously through meshing transmission. The rotation of the lead screw causes the sliding plate to move along the lead screw. The sliding plate further drives the sliding block to move, smoothly converting the vertical pressing force into the horizontal traction force, so as to smoothly insert the FPC into the connector, reduce the force required for operation, and is especially suitable for scenarios where the connector is located in a narrow space inside the equipment, making it convenient for operators to apply force;

[0023] The color-changing travel indicator bar can intuitively display the insertion depth during FPC insertion. The color change provides clear travel feedback to operators or automated equipment, avoiding plastic deformation of terminals and cracking of the housing due to improper force or over-insertion. It solves the problem of traditional connectors lacking clear insertion and removal travel indication. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of an FPC connector that is easy to plug and unplug according to the present invention.

[0025] Figure 2 This is a cross-sectional view of the outer shell structure of an FPC connector that is easy to plug and unplug according to the present invention.

[0026] Figure 3 This is a schematic diagram of the outer shell structure of an FPC connector that is easy to plug and unplug according to the present invention;

[0027] Figure 4 This is a schematic diagram of the sliding block and its connection structure of an FPC connector that is easy to plug and unplug.

[0028] Figure 5 This is a schematic diagram of the lead screw and its connection structure of an FPC connector that is easy to plug and unplug according to the present invention.

[0029] Figure 6 This is a schematic diagram of the positioning post and its connection structure of an FPC connector that is easy to insert and remove according to the present invention.

[0030] In the diagram, 1. Outer shell; 2. Slot opening; 3. Terminal; 4. Color-changing travel indicator bar; 5. Positioning slot; 6. Locking hole; 7. Positioning pin; 8. Elastic locking head; 9. Guide roller; 10. Limiting slot; 11. Limiting block; 12. Sliding block; 13. Fixing plate; 14. Threaded rod; 15. Side clamping plate; 16. Circular connecting plate; 17. Force arm; 18. Driving wheel; 19. Driven wheel; 20. Lead screw; 21. Sliding plate; 22. Connecting slot. Detailed Implementation

[0031] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0032] In this embodiment, refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 The specific implementation of an easy-to-plug FPC connector includes a housing 1. A slot 2 is provided at the center of the upper surface of the housing 1. Terminals 3 are evenly distributed within the cavity of the slot 2. A color-changing travel indicator strip 4 is installed at the rear end of the upper surface of the housing 1. Guide rollers 9 are provided around the top of the slot 2, and the guide rollers 9 are rotatably connected to the corresponding positions on the upper surface of the housing 1. Sliding blocks 12 are slidably connected to both sides of the cavity of the slot 2. Threaded rods 14 are threadedly connected to the upper surface of the sliding blocks 12. Side clamps 15 are installed at the inner ends of the threaded rods 14. A rotating plate 15 is provided at the center of the upper outer part of the housing 1. A circular connecting plate 16 is dynamically connected. A force-applying arm 17 is installed on the upper front of the circular connecting plate 16. A connecting groove 22 is provided on both sides of the inner cavity of the outer shell 1. A drive wheel 18 is rotatably connected to the upper center of the inner side of the connecting groove 22. The drive wheel 18 is coaxially connected to the corresponding circular connecting plate 16. A driven wheel 19 is meshed on the upper surface of the drive wheel 18. A lead screw 20 is installed at the bottom of the driven wheel 19. The driven wheel 19 and the lead screw 20 are rotatably connected to the corresponding positions of the outer shell 1 and the connecting groove 22. A sliding plate 21 is sleeved on the center of the surface of the lead screw 20. The sliding plate 21 is connected to the corresponding sliding block 12.

[0033] Align the FPC to be connected with the slot 2 opened in the center of the upper surface of the housing 1, so that the gold finger area of ​​the FPC is precisely aligned with the position of the terminals 3 evenly added in the inner cavity of the slot 2, so as to ensure that the terminals 3 can effectively contact the gold fingers of the FPC during subsequent insertion.

[0034] The operator or automated equipment applies downward pressure to the force-applying arm 17 installed on the upper front of the circular connecting plate 16; since the circular connecting plate 16 is rotatably connected to the upper outer center of the outer shell 1, the force-applying arm 17 drives the circular connecting plate 16 to rotate around its rotation axis after being subjected to force; since the drive wheel 18 is coaxially connected to the corresponding circular connecting plate 16, the rotation of the circular connecting plate 16 synchronously drives the drive wheel 18, which is rotatably connected to the upper center of the inner side of the connecting groove 22 on both sides of the inner cavity of the outer shell 1, to rotate.

[0035] The upper surface of the driving wheel 18 meshes with the driven wheel 19, and the rotation of the driving wheel 18 drives the driven wheel 19 to rotate in the opposite direction. A lead screw 20 is installed at the bottom end of the driven wheel 19, and the driven wheel 19 is rotatably connected to the corresponding part of the outer casing 1, and the lead screw 20 is rotatably connected to the corresponding part of the connecting groove 22. Therefore, the rotation of the driven wheel 19 synchronously drives the lead screw 20 to rotate. The sliding plate 21 sleeved at the center of the surface of the lead screw 20 is threadedly engaged with the lead screw 20 and moves horizontally along the axial direction of the lead screw 20 when the lead screw 20 rotates.

[0036] The sliding plate 21 is connected to the corresponding sliding block 12. The horizontal movement of the sliding plate 21 causes the sliding block 12 to slide synchronously on both sides of the inner cavity of the slot 2. The threaded rod 14 connected to the upper surface of the sliding block 12 is rotated, and the position of the side clamp 15 installed at the inner end of the threaded rod 14 is adjusted so that the side clamp 15 fits against the two sides of the FPC and provides auxiliary limit for the insertion direction of the FPC. At the same time, when the FPC is inserted along the slot 2, the guide rollers 9 that are rotatably connected to the upper surface of the outer shell 1 around the top of the slot 2 contact the edge of the FPC and roll with the FPC as it is inserted, converting sliding friction into rolling friction and guiding the FPC to smoothly enter the inner cavity of the slot 2.

[0037] During FPC insertion, the color-changing travel indicator 4 mounted on the rear end of the upper surface of the housing 1 provides real-time feedback on the insertion depth: Initially, the color-changing travel indicator 4 displays red, indicating that the FPC has not reached the effective working position; as the FPC insertion depth increases, the movement of the sliding block 12 synchronously pushes the internal color-changing components of the color-changing travel indicator 4, such as the color-changing coating pusher or the shielding plate, and the color-changing area of ​​the indicator gradually changes; when the FPC is inserted into the working position and the terminal 3 forms stable contact with the FPC gold fingers, the color-changing travel indicator 4 completely switches to green, sending an insertion signal to the operator or automated equipment; at this time, the force applied to the lever arm 17 is stopped, and the FPC insertion operation is completed;

[0038] The lever-type assist mechanism, consisting of an outer shell 1, a circular connecting plate 16, a lever arm 17, a driving wheel 18, a driven wheel 19, a lead screw 20, a sliding plate 21, and a sliding block 12, converts vertical operating force into horizontal traction force through the lever action of the lever arm 17 and the transmission cooperation of the driving wheel 18, the driven wheel 19, and the lead screw 20. This allows for the smooth insertion of the FPC, effectively reducing the difficulty of operation. It is especially suitable for narrow spaces inside equipment, making it easier for operators to apply force, while avoiding positioning accuracy deviations caused by insertion and extraction forces on robotic arms in automated production lines.

[0039] The guide rollers 9 around the top of the slot 2 replace sliding contact with rolling contact when the FPC is inserted, which significantly reduces the initial insertion resistance. At the same time, it avoids direct friction between the edge of the FPC and the inner wall of the slot 2, protects the integrity of the FPC edge, and reduces wear on the FPC gold fingers due to frequent insertion and removal. The limiting structure composed of the sliding block 12, the threaded rod 14 and the side clamp 15 can precisely control the position of the side clamp 15 by adjusting the threaded rod 14, so that the FPC does not deviate when inserted, ensuring that the terminal 3 and the FPC gold fingers are accurately aligned and ensuring contact reliability.

[0040] The color-changing travel indicator bar 4 at the rear end of the upper surface of the housing 1 has comprehensive travel feedback advantages. The initial red state clearly indicates "insertion insufficiency" to avoid poor contact caused by insufficient depth; the green state clearly indicates "insertion in place" to prevent over-insertion from causing plastic deformation of the terminal 3 or cracking of the insulation body of the housing 1.

[0041] like Figure 3 and Figure 6 As shown, positioning grooves 5 are provided around the upper surface of the outer shell 1, and slot holes 6 are evenly provided around the inner wall of the positioning grooves 5.

[0042] During the processing of the outer casing 1, the reference position of the upper surface of the outer casing 1 is first determined. Then, positioning grooves 5 are machined around the upper surface of the outer casing 1 around the reference to ensure the positional accuracy and dimensional consistency of the positioning grooves 5. After the positioning grooves 5 are machined, the machining points of the locking holes 6 are evenly planned around the inner wall of the positioning grooves 5 as the machining reference. The locking holes 6 are then drilled according to the planned points to ensure that the diameter and depth of each locking hole 6 meet the assembly requirements and that each locking hole 6 is evenly distributed around the inner wall of the positioning groove 5. The positioning grooves 5 provide a clear positioning reference for the installation of subsequent related components, which can quickly guide the components to be assembled to find the accurate installation position, reduce the position adjustment time during component installation, and improve assembly efficiency. The locking holes 6 evenly opened around the inner wall of the positioning grooves 5 can match the locking structure on the subsequent components, providing a structural basis for the locking fit between components, avoiding installation offset or positional wobbling of subsequent components in the positioning grooves 5, and ensuring the positional stability of the components after assembly.

[0043] Positioning pins 7 are inserted into the inner cavity of the positioning groove 5. Elastic clips 8 are evenly installed around the outer surface of the positioning pins 7, and the elastic clips 8 are engaged with the corresponding clip holes 6.

[0044] During component assembly, first align the lower end of the positioning pin 7 with the opening of the inner cavity of the positioning groove 5, ensuring that the elastic locking heads 8 around the outer surface of the positioning pin 7 are roughly aligned with the locking holes 6 on the inner wall of the positioning groove 5. Then, slowly insert the positioning pin 7 into the inner cavity of the positioning groove 5. During insertion, the inner wall of the positioning groove 5 will exert a squeezing force on the elastic locking heads 8, causing the elastic locking heads 8 to elastically deform and contract towards the outer surface of the positioning pin 7. When the positioning pin 7 is inserted to the specified depth, and the elastic locking heads 8 move to the position corresponding to the locking holes 6, the elastic locking heads 8 extend outward under the action of their own elastic restoring force and lock into the corresponding locking holes 6, completing the alignment of the positioning pin 7 with the positioning groove. The insertion and snap-fit ​​connection between the 5 components; the method of inserting and fitting the positioning post 7 into the positioning groove 5 can further enhance the positioning effect between the components and ensure that each component is in the preset relative position after assembly; the snap-fit ​​connection structure between the elastic snap head 8 and the snap hole 6 can achieve stable fixation of the positioning post 7 in the positioning groove 5 without the need for additional fastening tools or connectors, simplifying the assembly operation steps. At the same time, the elastic snap head 8 has a certain elastic deformation capability. When it is necessary to disassemble the positioning post 7 later, only a certain external force needs to be applied to make the elastic snap head 8 disengage from the snap hole 6, which facilitates the disassembly and maintenance of the components and will not damage the structure of the positioning post 7 and the positioning groove 5.

[0045] The center of the upper surface of the positioning post 7 corresponds to the position of the corresponding guide roller 9, and the guide roller 9 is rotatably connected to the upper surface of the positioning post 7.

[0046] After the positioning post 7 is assembled with the positioning groove 5, the installation position of the guide roller 9 is determined with the center of the upper surface of the positioning post 7 as the reference point, ensuring that the central axis of the guide roller 9 and the center of the upper surface of the positioning post 7 are on the same vertical line, so that their positions correspond. Then, a rotating connector, such as a bearing, is installed at the center of the upper surface of the positioning post 7 to achieve the rotation function. The guide roller 9 is then assembled onto the rotating connector, ensuring that the guide roller 9 can rotate flexibly around the rotating connector, thereby achieving a rotational connection between the guide roller 9 and the upper surface of the positioning post 7. The center of the upper surface of the positioning post 7 and the center of the positioning groove 5 are aligned. The corresponding positional relationship of the guide rollers 9 ensures that the guide rollers 9 are always in the preset guiding position during operation, avoiding the failure of the guiding function due to the positional deviation of the guide rollers 9, and ensuring guiding accuracy. The rotating connection between the guide rollers 9 and the upper surface of the positioning column 7 allows the guide rollers 9 to convert sliding friction into rolling friction through their own rotation when they come into contact with the guiding components. This greatly reduces the friction during the guiding process, reduces the wear between the component to be guided and the guide rollers 9, extends the service life of both, and also makes the movement of the component to be guided smoother, improving the overall operational stability of the device.

[0047] like Figure 3 and Figure 4 As shown, limit grooves 10 are provided on both sides of the inner wall of the outer shell 1, and limit blocks 11 are slidably connected to the upper part of the inner cavity of the limit grooves 10. The limit blocks 11 are connected to the corresponding sliding blocks 12.

[0048] During the machining stage of the outer shell 1, the machining positions of the limiting grooves 10 are first determined on both sides of the inner wall of the outer shell 1, ensuring that the limiting grooves 10 on both sides are symmetrical and parallel to the preset sliding direction. Then, the limiting grooves 10 are machined according to the determined positions. After the limiting grooves 10 are machined, the limiting block 11 is inserted from the upper part of the inner cavity of the limiting groove 10, and the posture of the limiting block 11 is adjusted so that the outer wall of the limiting block 11 is tightly fitted with the inner wall of the limiting groove 10, ensuring that the limiting block 11 can slide smoothly along the inner cavity of the limiting groove 10. Finally, the limiting block 11 is fixedly connected to the corresponding sliding block 12 by conventional connection methods such as welding or bolt connection, ensuring that the two move smoothly during the process. The limiting grooves 10 on both sides of the inner wall of the outer shell 1 provide clear trajectory constraints for the movement of the limiting block 11, which can restrict the limiting block 11 to slide only along the extension direction of the limiting groove 10, and prevent the limiting block 11 from lateral deviation or shaking during the movement; the connection structure between the limiting block 11 and the sliding block 12 can transfer the limiting effect of the limiting groove 10 on the limiting block 11 to the sliding block 12, thereby accurately limiting the movement trajectory of the sliding block 12, ensuring that the sliding block 12 always slides stably along the preset direction during the operation, preventing the overall working accuracy of the device from decreasing due to the deviation of the sliding block 12, and improving the reliability of the device operation.

[0049] like Figure 4 and Figure 5 As shown, a fixing plate 13 is installed on the outer side of the upper surface of the sliding block 12. A threaded hole is opened in the center of the front of the fixing plate 13, and the threaded rod 14 is threadedly connected to the fixing plate 13 through the threaded hole.

[0050] During the assembly of the sliding block 12, the installation position of the fixing plate 13 is first determined on the outer side of the upper surface of the sliding block 12 to ensure that the installation direction of the fixing plate 13 is consistent with the adjustment direction of the subsequent threaded rod 14. Then, the fixing plate 13 is fixedly installed on the outer side of the upper surface of the sliding block 12 by welding, screw connection, etc. After the fixing plate 13 is installed, the threaded hole is machined with the center of the front of the fixing plate 13 as a reference, ensuring that the axis of the threaded hole is consistent with the preset adjustment direction of the threaded rod 14. Finally, one end of the threaded rod 14 is aligned with the threaded hole on the fixing plate 13, and by rotating the threaded rod 14, it is gradually screwed into the threaded hole through thread engagement, completing the threaded connection between the threaded rod 14 and the fixing plate 13. The mounting structure provides a stable support for the threaded rod 14, ensuring a reliable mounting foundation for the threaded rod 14 during operation and preventing the threaded rod 14 from shaking due to an unstable mounting structure. The threaded hole at the center of the front of the fixing plate 13 and the threaded connection of the threaded rod 14 utilize the self-locking characteristic of the threaded connection to ensure that the threaded rod 14 is stably fixed in any adjustment position, preventing the threaded rod 14 from loosening during operation and ensuring the positional accuracy after adjustment. At the same time, the threaded rod 14 can be adjusted by rotating it to extend or retract from the fixing plate 13, which is simple and quick to operate. The extension length of the threaded rod 14 can be flexibly adjusted according to actual working needs, improving the applicability and adjustment flexibility of the overall device.

[0051] The usage process of an easy-to-plug FPC connector in this embodiment is as follows: When performing the FPC insertion operation, align the FPC to be connected with the slot 2 at the center of the upper surface of the housing 1, so that the gold finger area of ​​the FPC is precisely aligned with the terminal 3 position of the inner cavity of the slot 2.

[0052] When an operator or automated equipment applies downward pressure to the lever arm 17, the circular connecting plate 16 is rotatably connected to the upper center of the outer side of the outer shell 1. The lever arm 17 is driven by the force to rotate the circular connecting plate 16 around the rotation axis, and the driving wheel 18 rotates synchronously with the circular connecting plate 16. The driving wheel 18 drives the meshing driven wheel 19 to rotate in the opposite direction, and the driven wheel 19 drives the bottom lead screw 20 to rotate synchronously. The sliding plate 21 on the surface of the lead screw 20 moves horizontally along the axial direction of the lead screw 20 due to the threaded engagement. The sliding plate 21 drives the sliding block 12 to slide synchronously on both sides of the inner cavity of the slot opening 2.

[0053] Rotate the threaded rod 14 to adjust the position of the side clamp 15, so that the side clamp 15 fits against the two sides of the FPC for auxiliary limiting. When the FPC is inserted along the slot 2, the guide roller 9 contacts the edge of the FPC and rolls with the insertion, converting sliding friction into rolling friction, guiding the FPC to enter the inner cavity smoothly. During the insertion process, the color-changing stroke indicator 4 provides real-time feedback on the depth. Initially, it displays red. As the insertion depth increases, the sliding block 12 moves and synchronously pushes the color-displaying component inside the color-changing stroke indicator 4. The color-displaying area of ​​the indicator gradually changes. When the FPC is inserted to the working position and the terminal 3 is in stable contact with the FPC gold finger, the color-changing stroke indicator 4 completely switches to green, stops applying force to the force arm 17, and the insertion is completed.

[0054] The lever-type assist mechanism, consisting of the outer shell 1, circular connecting plate 16, force-applying arm 17, driving wheel 18, driven wheel 19, lead screw 20, sliding plate 21, and sliding block 12, converts vertical operating force into horizontal traction force through leverage and transmission cooperation with the driving wheel 18, driven wheel 19, and lead screw 20, reducing operational difficulty, suitable for narrow spaces, and avoiding positioning accuracy deviations. The guide roller 9 reduces initial insertion resistance, protects the integrity of the FPC edge, and reduces wear on the gold fingers. The sliding block 12, threaded rod 14, and side clamping plate 15 ensure that the FPC does not shift, guaranteeing contact reliability. The color-changing stroke indicator strip 4 prevents poor contact and structural damage. The positioning groove 5 improves assembly efficiency. The clasp 6 ensures component assembly stability. The positioning post 7 enhances the positioning effect. The elastic clasp 8 simplifies assembly and disassembly. The limit groove 10 and limit block 11 ensure stable sliding of the sliding block 12. The fixing plate 13 provides support for the threaded rod 14 and ensures its positional stability, improving the applicability and flexibility of the device.

[0055] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the scope of protection of the present invention.

Claims

1. An easy-to-plug FPC connector, comprising a housing, wherein a slot is formed at the center of the upper surface of the housing, and terminals are evenly arranged in the inner cavity of the slot, characterized in that: A color-changing travel indicator strip is installed on the rear end of the upper surface of the outer shell. Guide rollers are added around the top of the slot opening. The guide rollers are rotatably connected to the corresponding positions on the upper surface of the outer shell. Sliding blocks are slidably connected to both sides of the inner cavity of the slot opening. Threaded rods are threadedly connected to the upper surface of the sliding blocks. Side clamps are installed at the inner ends of the threaded rods. Circular connecting plates are rotatably connected to the upper center of the outer side of the outer shell. Force arms are installed on the upper front of the circular connecting plates. Connecting slots are opened on both sides of the inner cavity of the outer shell. Driving wheels are rotatably connected to the upper center of the inner side of the connecting slots. The driving wheels are coaxially connected to the corresponding circular connecting plates. Driven wheels are meshed on the upper surface of the driving wheels. Lead screws are installed at the bottom ends of the driven wheels. The driven wheels and lead screws are rotatably connected to the corresponding positions of the outer shell and the connecting slots. A sliding plate is sleeved on the center of the surface of the lead screw. The sliding plate is connected to the corresponding sliding block.

2. The FPC connector for easy insertion and removal according to claim 1, characterized in that: The upper surface of the outer shell is provided with positioning grooves around all four sides, and the inner wall of the positioning groove is provided with locking holes evenly around all four sides.

3. The FPC connector for easy insertion and removal according to claim 2, characterized in that: The inner cavity of each positioning groove is fitted with a positioning post, and the outer surface of the positioning post is uniformly fitted with elastic clips, which are engaged with the corresponding clip holes.

4. The FPC connector for easy insertion and removal according to claim 3, characterized in that: The center of the upper surface of the positioning post corresponds to the position of the corresponding guide roller, and the guide roller is rotatably connected to the upper surface of the positioning post.

5. The FPC connector for easy insertion and removal according to claim 1, characterized in that: Limiting grooves are provided on both sides of the inner wall of the outer shell, and limiting blocks are slidably connected to the upper part of the inner cavity of the limiting grooves. The limiting blocks are connected to the corresponding sliding blocks.

6. The FPC connector for easy insertion and removal according to claim 1, characterized in that: The upper outer surface of the sliding block is equipped with a fixing plate. A threaded hole is opened in the center of the front of the fixing plate, and the threaded rod is threadedly connected to the fixing plate through the threaded hole.

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