A pull rod type connector capable of precise butt joint installation

Abstract

This invention relates to the field of FPC connectors, specifically a pull-rod type connector capable of precise mating and installation. It includes a plastic housing with several signal contact terminals evenly spaced within it. A pull-rod clamping member is movably disposed within the housing. Stabilizing members are symmetrically arranged on both sides of the housing. A cable inlet is located on the front of the housing. Sliding grooves are symmetrically formed on the inner walls of both sides of the cable inlet. Embedding slots are symmetrically formed on both sides of the inner top of the cable inlet. A pair of swing grooves are also formed within the housing wall, each connected to one of the embedded slots. A pointer handle is movably disposed within the embedded slot via a rotating rod, with one end of the pointer handle located on the outside of the housing. A sliding rod is disposed within the sliding groove, and a slider is movably disposed within the sliding groove, mounted on the sliding rod. A pushing block corresponding to the embedded slot is located on the front of the slider. Through the linkage design of the sliding groove, slider, and pointer handle within the cable inlet, precise mating and installation of the FPC cable is achieved.

Description

Technical Field

[0001] This invention relates to the field of FPC connectors, specifically a pull rod type connector that can be precisely mated and installed. Background Technology

[0002] In the field of internal circuit connection of electronic devices, FPC ribbon cable connectors are widely used in the signal transmission of precision electronic components due to their small size and convenient transmission characteristics. However, existing conventional connectors generally have many technical drawbacks.

[0003] Traditional connectors mostly lack precise mating indicators, and workers can only rely on experience to judge whether the cable is inserted properly during assembly. This can easily lead to problems such as shallow insertion or misalignment, resulting in poor contact, signal interruption, and affecting the normal operation of the equipment. Meanwhile, the existing connectors' lever locking structures are mostly simple snap-fit ​​mechanisms with poor locking stability. Vibrations during equipment operation can easily cause the lever to loosen, resulting in loose or detached cables. Furthermore, the lack of a real-time loosening warning mechanism means that staff cannot detect abnormal cable connections in time, which can easily lead to equipment failure. In addition, some connectors lack stability, and the component connections are prone to shaking. The clamping structures are mostly made of rigid materials, which can easily damage the surface of the cables. Overall, the installation efficiency is low and the reliability is poor, making it difficult to meet the requirements of high-precision and high-stability electronic wiring. Therefore, there is an urgent need for a connector that can accurately connect, lock securely, and has a warning function to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings and deficiencies of the prior art by providing a reasonably designed pull rod connector that can be precisely installed, thereby solving the aforementioned problems.

[0005] To achieve the above objectives, the present invention provides the following technical solution: It includes a plastic housing, in which several signal contact terminals are embedded at equal intervals; a pull rod clamping member is movably disposed within the plastic housing; stabilizing members are symmetrically disposed on both sides of the plastic housing; a wire inlet is provided on the front of the plastic housing; sliding grooves are symmetrically formed on the inner walls on both sides of the wire inlet; embedding grooves are symmetrically formed on both sides of the inner top of the wire inlet; a pair of swing grooves are also formed within the wall of the plastic housing, the two swing grooves being connected to the two embedding grooves respectively; a prompting handle is movably disposed within the embedding groove via a rotating rod, one end of the prompting handle being located outside the plastic housing; a sliding rod is disposed within the sliding groove; a slider is movably disposed within the sliding groove; the slider is movably disposed on the sliding rod; and a pushing block corresponding to the embedding groove is provided on the front of the slider.

[0006] Preferably, a tension spring is fitted on the slide rod, with one end of the tension spring connected to the inner wall of one side of the slide groove and the other end connected to the slider.

[0007] Preferably, a conspicuous sticker is provided on one end of the indicator handle located on the outside of the plastic housing.

[0008] Preferably, the plastic shell has symmetrical sliding shells on both sides, each sliding shell has a stop at its front end, and each sliding shell has symmetrical mating grooves on its upper and lower outer walls.

[0009] Preferably, the pull rod clamping member is symmetrically provided with anti-detachment limiting hooks on both sides, and the two anti-detachment limiting hooks are respectively provided in the sliding shells on both sides. The pull rod clamping member is provided with a pull rod pressure tongue at the position corresponding to the wire insertion port on the inner side.

[0010] Preferably, the two stabilizing members are respectively disposed on the outer sides of the two sliding shells. The stabilizing members are provided with inner buckling edges on both the upper and lower sides. The inner buckling edges are engaged in the mating groove. The back of the plastic shell is provided with an inner buckling groove corresponding to the position of the stabilizing member. The stabilizing member is provided with an inner buckling component, which is disposed in the inner buckling groove.

[0011] Preferably, a limiting cylinder is provided on the outer wall of the stabilizing member, an insert rod is movably disposed inside the limiting cylinder, a pull rod is provided at the tail of the insert rod, one end of the pull rod is located outside the limiting cylinder, a top pressure spring is provided inside the limiting cylinder, the top pressure spring is sleeved on the outside of the pull rod, and the top pressure spring abuts against the top surface inside the limiting cylinder and the insert rod, and a pull member is provided at the end of the pull rod located outside the limiting cylinder.

[0012] Preferably, insertion holes are provided on the outer sides of both anti-detachment limiting hooks at the positions corresponding to the insertion rods.

[0013] Preferably, one end of the pull member is located at the top of the stabilizer, the top of the stabilizer is provided with a T-shaped groove, and a T-shaped block is provided on the pull member at the position corresponding to the T-shaped groove, and the T-shaped block is movably disposed in the T-shaped groove.

[0014] Preferably, a soft pressure pad is provided at the bottom of the pull rod pressure tongue.

[0015] The beneficial effects of the invention after adopting the above structure are: 1. This invention achieves precise FPC cable connection and installation by setting a sliding groove, slider and indicator handle in the cable inlet, completely solving the problem of traditional connector cables not being inserted properly. Workers can intuitively judge whether the cable is inserted properly by the position of the conspicuous label, without the need for tools or repeated plugging and unplugging to check, which greatly reduces human operation error, improves the accuracy of cable connection and the first-time installation success rate, and is especially suitable for batch assembly scenarios, effectively improving the efficiency of wiring operations.

[0016] 2. This invention provides a soft pressure pad on the pull rod pressure tongue, which flexibly presses the ribbon cable, avoiding damage to the ribbon cable by hard squeezing, and ensuring that the contact terminal and the ribbon cable are fully in contact, thus ensuring stable and uninterrupted signal transmission.

[0017] 3. This invention, through a visual loosening warning structure, can monitor the cable connection status in real time, greatly improving the reliability of use. When the cable becomes loose and shifts, the push block will move outward with the cable, the indicator handle will be pushed back to its original position, and the conspicuous sticker will be exposed from inside and outside the swing slot. Staff can quickly and intuitively discover the problem, troubleshoot and maintain it in a timely manner, and avoid equipment signal interruption and malfunction due to loose or detached cables, thereby reducing the cost and risk of equipment downtime maintenance.

[0018] 4. This invention, through the interlocking structure of the plug rod and the anti-disengagement limit hook, possesses extremely strong locking stability, completely solving the problem of easy loosening of traditional connector pull rods. The clamping force of the top spring ensures that the plug rod is always tightly locked in the socket. Even if the equipment vibrates during operation, it can prevent the plug rod from accidentally coming out, ensuring that the pull rod clamping part is always in a compressed state. This allows the soft pressure pad to stably press the FPC cable, preventing cable loosening and poor contact caused by locking failure, and ensuring the continuity and stability of signal transmission. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall unfolded structure of the present invention; Figure 3 This is a structural diagram of the present invention when one side of the stabilizing member is cut open; Figure 4 This is a schematic diagram of the plastic shell structure of the present invention; Figure 5 for Figure 4 Enlarged view at point B in the middle; Figure 6 This is a side sectional view of the plastic housing of the present invention; Figure 7 for Figure 6 A schematic diagram showing the unfolding of the push block and tension spring in the middle structure; Figure 8 This is a schematic diagram of the tie rod clamping component structure of the present invention; Figure 9 This is a schematic diagram of the stabilizing component structure of the present invention; Figure 10 This is a structural diagram of the stabilizing component of the present invention when the insert rod is removed; Figure 11 for Figure 3 Enlarged view of point A in the middle.

[0020] Explanation of reference numerals in the attached figures: 1. Plastic housing, 10. Sliding housing, 11. Stop block, 12. Cable inlet, 13. Mating groove, 14. Sliding groove, 15. Embedded groove, 16. Sliding rod, 17. Tension spring, 18. Swing groove, 19. Indicator handle, 110. Rotating rod, 111. Eye-catching sticker, 112. Push block, 113. Inner snap groove, 114. Slider, 2. Pull rod clamp, 20. Pull rod pressure tongue, 21. Anti-detachment limit hook, 22. Insertion hole, 23. Soft pressure pad, 34. Stabilizer, 30. Inner snap edge, 31. Inner snap piece, 32. Limiting cylinder, 33. Insert rod, 34. Pull piece, 35. Top pressure spring, 36. T-slot, 37. T-block, 38. Signal contact terminal, 4. Detailed Implementation

[0021] The technical solutions of the embodiments of the invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the invention.

[0022] like Figure 1 - Figure 11 As shown, the present invention proposes a pull rod type connector that can be precisely installed. It includes a plastic housing 1, in which several signal contact terminals 4 are embedded at equal intervals. The signal contact terminals 4 are arranged in parallel. One end of the terminal extends into the plastic housing 1 for contact and conduction with the ribbon cable, and the other end extends to the outside of the plastic housing 1 for easy soldering or plugging with external circuits to achieve stable signal transmission. A pull rod clamping component 2 is movably installed inside the plastic housing 1. The pull rod clamping component 2 is an integral rigid structure and is arranged along the length direction of the plastic housing 1. It can slide back and forth inside the plastic housing 1 to realize the switching of clamping and loosening of the cable. Stabilizing components 3 are symmetrically arranged on both sides of the plastic housing 1 and are firmly assembled with the plastic housing 1 to improve the overall stability of the connector. The front of the plastic housing 1 has a wire inlet 12, which is a flat through slot with a size that matches the FPC cable to be connected, allowing for precise insertion of the FPC cable. Symmetrical longitudinal grooves 14 are formed on the inner walls of both sides of the wire inlet 12, extending along the insertion direction of the wire inlet 12. A slide rod 16 is fixedly installed within the slide rod 14, with both ends of the slide rod 16 fixedly connected to the front and rear inner walls of the slide rod 14, respectively. A slider 114 is movably mounted within the slide rod 14, slidingly mounted on the slide rod 16 and able to move smoothly along the slide rod 16. The slide is reciprocating without any jamming or offset. The front of the slider 114 is integrally formed with a push block 112. The push block 112 protrudes towards the inside of the wire insertion port 12, and its position corresponds one-to-one with the subsequent embedding slot 15, ensuring that the push block 112 can be accurately touched when the FPC cable is inserted. A tension spring 17 is sleeved on the slide rod 16. One end of the tension spring 17 is connected to the inner wall of one side of the slide groove 14, and the other end is connected to the slider 114. When the cable is loose, the tension spring 17 will pull back the slider 114, causing the push block 112 to move forward. The inner top of the inlet socket 12 is symmetrically provided with two embedding grooves 15. The embedding grooves 15 are groove structures that are adapted to the size of the push block 112 so that the push block 112 can be fully embedded. A pair of swing grooves 18 are also provided in the wall of the plastic shell 1. The two swing grooves 18 are respectively connected to the two embedding grooves 15 and extend outward from the plastic shell 1. A prompt handle 19 is movably installed in the embedding groove 15 through a rotating rod 110. The rotating rod 110 passes through the middle of the prompt handle 19 laterally and is fixed at both ends to the inner wall of the embedding groove 15. The prompt handle 19 can swing freely around the rotating rod 110. One end of the prompt handle 19 extends to the outside of the plastic shell 1, and the other end extends into the embedding groove 15, corresponding to the position of the push block 112. A conspicuous sticker 111 is pasted on the end of the prompt handle 19 located on the outside of the plastic shell 1. The conspicuous sticker 111 is a high-contrast color sticker, which is easy for staff to see clearly from a distance. The two sides of the plastic housing 1 are symmetrically fixed with sliding shells 10, which are integrally injection molded with the plastic housing 1. Each sliding shell 10 has a stop block 11 integrally provided at the front end inside. The stop block 11 is used to limit the sliding stroke of the pull rod clamping part 2 and prevent it from sliding out and falling off excessively. Each sliding shell 10 has symmetrical mating grooves 13 on its upper and lower outer walls. The mating grooves 13 are strip-shaped grooves for precise engagement with the stabilizing part 3. The pull rod clamping part 2 has symmetrical anti-detachment limit hooks 21 integrally formed on both sides. The two anti-detachment limit hooks 21 extend into the sliding shells 10 on both sides respectively and can slide back and forth along the inner cavity of the sliding shell 10. The stop block 11 is located on the sliding path of the anti-detachment limit hook 21 and forms a limit on it. The inner side of the pull rod clamping part 2 is integrally provided with a pull rod pressure tongue 20 corresponding to the position of the wire insertion port 12. The pull rod pressure tongue 20 protrudes downward and a soft pressure pad 23 is glued and fixed at its bottom. The soft pressure pad 23 is made of silicone or rubber material, which is soft and has a certain elasticity to avoid damaging the surface of the FPC cable when clamping. Two stabilizing components 3 are symmetrically assembled on the outer sides of the two sliding shells 10. The upper and lower sides of the stabilizing component 3 are integrally bent to form inner buckle edges 30. The inner buckle edges 30 are correspondingly engaged in the mating grooves 13 of the sliding shell 10 to achieve the initial engagement and positioning of the stabilizing component 3 and the sliding shell 10. An inner buckle groove 113 is opened on the back of the plastic shell 1 at the position corresponding to the stabilizing component 3. An inner buckle 31 is integrally formed on the inner side of the stabilizing component 3 at the corresponding position. The inner buckle 31 is tightly engaged in the inner buckle groove 113 to further strengthen the connection strength between the stabilizing component 3 and the plastic shell 1 and prevent the stabilizing component 3 from loosening. A limiting cylinder 32 is fixedly installed on the outer wall of the stabilizing component 3. The limiting cylinder 32 is a hollow cylindrical structure with its axis perpendicular to the length direction of the sliding shell 10. An insert rod 33 is movably disposed inside the limiting cylinder 32 and can slide axially along the inner cavity of the limiting cylinder 32. A pull rod 34 is fixedly connected to the tail of the insert rod 33. One end of the pull rod 34 extends to the outside of the limiting cylinder 32. A top pressure spring 36 is disposed inside the limiting cylinder 32 and is movably sleeved on the outside of the pull rod 34. One end of the top pressure spring 36 abuts against the inner top surface of the limiting cylinder 32, and the other end abuts against the top of the insert rod 33, providing a downward elastic pushing force for the insert rod 33. The pull rod 34 is located within the limiting cylinder 32. One end of the outer side is fixed with a pull member 35. The pull member 35 is a sheet structure, which is convenient for manual operation by the staff. One end of the pull member 35 extends to the top of the stabilizer 3. The top of the stabilizer 3 is provided with a T-shaped groove 37. The top of the pull member 35 is integrally formed with a T-shaped block 38 corresponding to the position of the T-shaped groove 37. The T-shaped block 38 is movably locked in the T-shaped groove 37, which guides and limits the sliding of the pull member 35 and prevents the pull member 35 from shaking and deviating. The outer sides of the two anti-disengagement limit hooks 21 are provided with insertion holes 22 corresponding to the positions of the insertion rods 33. The size of the insertion holes 22 is adapted to the insertion rods 33, so that the insertion rods 33 can be inserted and locked to realize the locking and fixing of the pull rod clamping member 2.

[0023] When using it, the first step is to prepare before inserting the ribbon cable. The operator manually pulls the lever clamp 2 backward. After the lever clamp 2 is under force, it drives the anti-disengagement limit hooks 21 on both sides to slide outward synchronously along the inner cavity of the sliding shell 10. During the sliding process, the slide rod 16 provides stable guidance for the slider 114 until the hook heads of the anti-disengagement limit hooks 21 on both sides abut against the stop block 11 inside the sliding shell 10. At this time, the lever clamp 2 moves to the maximum loosening position, and the lever pressure tongue 20 is raised accordingly. The internal space of the cable insertion port 12 is completely opened, leaving enough space for the insertion of the FPC ribbon cable and avoiding interference during the insertion process. Then, precisely align the FPC cable to be connected with the cable inlet 12 on the front of the plastic housing 1, and insert the cable steadily and vertically into the interior. During the insertion of the FPC cable, its front end will gradually touch and push the push block 112 on the sliders 114 on both sides. After the push block 112 is subjected to force, it drives the slider 114 to slide smoothly along the slide rod 16 in the slide groove 14 towards the embedding groove 15 until the push block 112 is completely embedded in the embedding groove 15, thus completing the initial positioning and pushing of the cable. As the push block 112 enters the embedding groove 15, it continuously squeezes the lower half of the indicator handle 19 located in the embedding groove 15. After being subjected to force, the indicator handle 19 swings in a direction around the rotating rod 110. Its lower half swings backward toward the plastic housing 1, while the upper end of the indicator handle 111, which is linked to it, swings forward toward the plastic housing 1. The staff observes the position of the indicator handle 111 in real time. When one end of the indicator handle is completely rotated into the swing groove 18 with no exposed part, it can be clearly determined that the FPC cable has been inserted into the preset standard position, achieving precise docking and installation, and completely avoiding poor contact problems caused by incomplete cable insertion. After the cable is inserted, the staff pushes the pull rod clamp 2 back into the plastic housing 1. During the push-back process, when the top of the anti-detachment limit hook 21 abuts against the insertion rod 33, there is no need to force it forward. Simply pull the pull piece 35 on the top of the stabilizing piece 3 outward by hand. The pull piece 35 slides stably along the T-slot 37 through the T-block 38, driving the pull rod 34 to move backward in sync. This squeezes the top pressure spring 36 in the limit cylinder 32, causing the insertion rod 33 to retract upward and disengage from the sliding path of the anti-detachment limit hook 21. Then, continue to push the pull rod clamp 2 slowly and steadily until the insertion hole 22 on the anti-detachment limit hook 21 moves directly below the insertion rod 33. At this time, release the pull piece 35, and the top pressure spring 36 releases its elastic potential energy, pushing the insertion rod 33 downward to reset and tightly lock it in the insertion hole 22, thus completing the locking and fixing of the pull rod clamp 2 and preventing it from slipping accidentally during use. During the entire process of the pull rod clamping member 2 being pushed forward and back, the pull rod pressure tongue 20 moves downward synchronously, and the soft pressure pad 23 at its bottom is evenly attached to the upper surface of the FPC cable. The locking force of the pull rod clamping member 2 forms a stable and moderate clamping force, which firmly fixes the FPC cable inside the cable inlet 12. The flexibility of the soft pressure pad 23 not only ensures the clamping strength, but also avoids damage to the cable line, effectively preventing problems such as loosening, falling off, and poor contact of the FPC cable, and ensuring the stability of signal transmission. During subsequent use of the connector, staff can quickly check the cable connection status by observing the status of the indicator handle 19 in real time: if the end of the indicator handle 19 with the conspicuous sticker 111 is always hidden in the swing groove 18, it indicates that the FPC cable connection is stable and not loose; if the conspicuous sticker 111 is exposed from inside or outside the swing groove 18, it proves that the cable has become loose and displaced. The tension spring 17 will pull back the slider 114, causing the push block 112 to move forward. At this time, the lower end of the indicator handle 19 will swing forward under the action of gravity, and the position of the upper end with the conspicuous sticker 111 will be exposed from inside the swing groove 18, indicating that the cable needs to be tightened in time, which greatly improves the maintainability and reliability of the connector during use.

[0024] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

[0025] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of the invention and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of the invention should be included within the scope of protection of the invention. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A pull rod connector capable of precise docking installation, comprising a plastic shell (1), a plurality of signal contact terminals (4) are embedded in the plastic shell (1) at equal intervals, characterized in that: A pull rod clamping member (2) is movably arranged inside the plastic housing (1). Stabilizing members (3) are symmetrically arranged on both sides of the plastic housing (1). A wire inlet (12) is provided on the front of the plastic housing (1). Sliding grooves (14) are symmetrically opened on the inner walls on both sides of the wire inlet (12). Embedding grooves (15) are symmetrically opened on both sides of the inner top of the wire inlet (12). A pair of swing grooves (18) are also opened in the wall of the plastic housing (1). The two swing grooves (18) are respectively connected to the inner wall of the plastic housing (1). Two embedded slots (15) are connected. A prompt handle (19) is movably arranged in the embedded slot (15) via a rotating rod (110). One end of the prompt handle (19) is located outside the plastic shell (1). A sliding rod (16) is arranged in the sliding groove (14). A slider (114) is movably arranged in the sliding groove (14). The slider (114) is movably arranged on the sliding rod (16). A push block (112) corresponding to the embedded slot (15) is arranged on the front of the slider (114).

2. The pull rod connector of claim 1, wherein: A tension spring (17) is fitted on the slide rod (16). One end of the tension spring (17) is connected to the inner wall of the slide groove (14) on one side, and the other end is connected to the slider (114).

3. The pull rod connector of claim 1, wherein: The indicator handle (19) has a conspicuous sticker (111) on one end located outside the plastic housing (1).

4. The pull rod connector of claim 1, wherein: The plastic shell (1) has symmetrical sliding shells (10) on both sides. Each sliding shell (10) has a stop block (11) at the front end inside, and each sliding shell (10) has symmetrical mating grooves (13) on the upper and lower outer walls.

5. The precision docking installable pull rod connector of claim 4, wherein: The pull rod clamping member (2) is symmetrically provided with anti-detachment limiting hooks (21) on both sides. The two anti-detachment limiting hooks (21) are respectively provided in the sliding shells (10) on both sides. The pull rod clamping member (2) is provided with a pull rod pressure tongue (20) on the inner side corresponding to the wire insertion port (12).

6. The pull rod connector of claim 5, wherein: The two stabilizers (3) are respectively set on the outside of the two sliding shells (10). The stabilizers (3) are provided with inner buckles (30) on both the upper and lower sides, and the inner buckles (30) are locked in the mating groove (13).

7. The precision docking installable pull rod connector of claim 6, wherein: A limiting cylinder (32) is provided on the outer wall of the stabilizing member (3). A plug rod (33) is movably provided inside the limiting cylinder (32). A pull rod (34) is provided at the tail of the plug rod (33). One end of the pull rod (34) is located outside the limiting cylinder (32). A top pressure spring (36) is provided inside the limiting cylinder (32). The top pressure spring (36) is sleeved on the outside of the pull rod (34) and abuts against the top surface inside the limiting cylinder (32) and the plug rod (33). A pull member (35) is provided at one end of the pull rod (34) located outside the limiting cylinder (32).

8. The pull rod connector of claim 7, wherein: Both of the two anti-detachment limiting hooks (21) have insertion holes (22) on the outer side corresponding to the insertion rod (33).

9. The precision docking installable pull rod connector of claim 7, wherein: One end of the puller (35) is located at the top of the stabilizer (3), the top of the stabilizer (3) is provided with a T-shaped slot (37), and the puller (35) is provided with a T-shaped block (38) at the position corresponding to the T-shaped slot (37), and the T-shaped block (38) is movably arranged in the T-shaped slot (37).

10. The pull rod connector of claim 5, wherein: The bottom of the pull rod tongue depressor (20) is provided with a soft pad (23).

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