Double-cavity high-density pin hole structure fast-locking rectangular connector

Abstract

The present application relates to the technical field of rectangular connectors, and particularly relates to a double-cavity high-density pin hole structure fast-locking rectangular connector, which comprises a socket main body, a plug component, a pin component and a locking component, the pin component is arranged in an equal number with pin holes of the socket main body, a plurality of pin components are arranged in one-to-one correspondence with a plurality of socket main bodies, the upper end of the pin component is connected with the plug component, when the plug component is close to the socket main body, the other end of the pin component can be inserted into the corresponding pin hole of the socket main body. The present application can realize the two-stage elastic floating setting of the plug component and the conical expansion type contact structure of the pin component, the contact plate is first inserted into the inner contact sleeve, the movement of the plug main body relative to the movable module serves as a driving force to drive the conical surface of the inner pin body to spread the contact plate, so that the contact plate forms a surface contact with the inner contact sleeve, the contact area is large, the resistance is small, and the conical cooperation significantly improves the connection reliability of the high-density pin hole under heavy load working conditions.

Description

Technical Field

[0001] This invention relates to the technical field of rectangular connectors, and in particular to a quick-locking rectangular connector with a dual-cavity high-density pinhole structure. Background Technology

[0002] Rectangular connectors, as a standardized and modular electronic interconnect component, are widely used in rail transportation, communication equipment, industrial control and aerospace fields. They are mainly used to realize signal and power transmission between boards, wires, or devices. Heavy-duty rectangular connectors are an important branch of rectangular connectors. They are usually composed of a metal shell (such as die-cast aluminum alloy), an insulating ferrule (module) and a locking mechanism, which can ensure stable connection in harsh industrial environments.

[0003] Chinese patent CN118970536B, which relates to rectangular connectors, discloses a rectangular connector with a quick-lock function. It achieves quick locking by providing a snap-fit ​​groove with a sliding slope and a receiving groove on the outer wall of the socket housing, and a locking part composed of a moving block, a fixed block and an elastic element on the plug housing. The moving block slides along the slope and snaps into the receiving groove.

[0004] Chinese patent CN120280749A, which relates to rectangular connectors, discloses a rectangular connector with a combined quick-lock structure, belonging to the field of connector technology. It includes a rectangular connector body and a switching locking element, providing maximum connection strength and stability. The connection mode can be flexibly switched according to the application location (vibration intensity) and requirements (buffering or fastening) without replacing parts, which greatly improves the adaptability and reliability of the connector.

[0005] With the continuous improvement of the integration of electronic devices, rectangular connectors are developing towards high-density and multi-functional integration. High-density pinhole structures require more pins and sockets with smaller spacing to be arranged in a limited connector space.

[0006] In addition, in order to achieve the separate transmission of different types of signals (such as power and signal, differential and single-ended) or circuits with different shielding requirements in the same connector, the dual-cavity structure has emerged. The dual-cavity rectangular connector has two independent insertion cavities inside, which can achieve physical isolation of functions. It is especially suitable for scenarios such as new energy battery swapping and rail transit that require separate transmission of power and signals in separate cavities.

[0007] While the high-density pinhole structure and multi-cavity setup meet the requirements for the number of signal transmission channels, they also bring about a significant increase in insertion and extraction resistance. During the insertion and extraction process, excessive insertion and extraction force not only increases the difficulty of operation, but also makes it very easy for the fine pins to bend, deform, or even break due to slight angular deviations. Summary of the Invention

[0008] To address the problems mentioned in the background art, the present invention provides a dual-cavity high-density pinhole structure quick-locking rectangular connector.

[0009] This invention provides a dual-cavity high-density pinhole structure quick-lock rectangular connector, employing the following technical solution: It includes a socket body, and further includes: The plug component is arranged in two sections, and the socket body has multiple equally spaced pinholes near the end of the plug component. The pin component has the same number of pin holes as the socket body. Multiple pin components are arranged in a one-to-one correspondence with multiple socket body positions. The upper end of the pin component is connected to the plug component. When the plug component is close to the socket body, the other end of the pin component can be inserted into the corresponding pin hole of the socket body. After the pin component is inserted into the corresponding pin hole of the socket body, it can expand. After the pin component expands, it can fully fit with the inner wall of the pin hole of the socket body.

[0010] The locking component has two parts, with the plug component and the socket body disposed between the two locking components. The two ends of the locking component are respectively connected to the plug component and the socket body, and the locking component can be disassembled to separate the plug component and the socket body.

[0011] Optionally, the plug component includes a plug body and a movable module. The movable module is located between the socket body and the plug body. The movable module is sleeved on the outside of the pin component. The pin component is connected to the plug body, and the plug body is elastically connected to the movable module.

[0012] Optionally, the pin component includes: The needle sleeve, the movable module is sleeved and installed on the outside of the needle sleeve, and multiple contact plates are evenly distributed around the end of the needle sleeve that is inserted into the needle hole of the socket body. The connection between the contact plate and the needle sleeve can be elastically bent. The inner needle body is coaxially mounted with the needle sleeve and connected to the plug body. When the plug body approaches the movable module, the inner needle body passes through the needle sleeve axis and pushes the contact plate connected to the needle sleeve away from the needle sleeve axis, causing the contact plate to contact the inner wall of the pin hole of the socket body.

[0013] Optionally, the locking component includes: A shaft block rod, one end of which is vertically installed on the side of the socket body, the upper end of which is semi-circular, the lower end of which is plate-shaped, and a through slot is opened on the other end face of the shaft block rod. The oblique toothed plate is slidably inserted into the slot. The oblique toothed plate has multiple right-angled toothed grooves on the side near the socket body. The upper sidewall of the right-angled toothed grooves of the oblique toothed plate is an inclined surface. The side of the movable module is slidably sleeved on the outside of the oblique toothed plate. Two primary stops are provided, with a shaft rod located between the two primary stops. The primary stops are connected to the movable module and can move laterally relative to the movable module. The primary stops are elastically connected to the movable module. A support frame is sleeved on the side of the primary stop away from the shaft rod. The support frame is installed on the side of the socket body and the primary stops can slide laterally within the support frame. An outer push plate is installed on the side of the inclined tooth plate away from the movable module. The outer push plate is located between two primary stop blocks. The lower end of the outer push plate is set in an isosceles trapezoidal shape. The upper end of the outer push plate is connected to the plug body. The toothed block has one side elastically connected to the socket body and the other side toothed. The toothed shape of the toothed block is adapted to the right-angle tooth groove of the inclined tooth plate. When the inclined tooth plate moves downward and contacts the toothed block, it pushes the toothed block to continuously and elastically approach the movable module.

[0014] Optionally, the outer circumferential surface of the inner needle is equipped with multiple spacers, the number of spacers being the same as the number of contact plates connected to the needle sleeve. When the inner needle is inserted between the multiple contact plates connected to the needle sleeve, the spacers are located between two adjacent contact plates.

[0015] Optionally, the multiple contact plates connected to the needle sleeve are arranged in a conical shape, and the inner needle body is also conical. The outer diameter of the inner needle body is larger than the inner diameter of the cone formed by the multiple contact plates. When the inner needle body moves between the multiple contact plates, it pushes the multiple contact plates connected to the needle sleeve to bend outward along the axis.

[0016] Optionally, the outer ring surface of the inner needle is provided with a plurality of equally spaced protrusions, and the inner ring surface of the contact plate is provided with a groove structure that matches the protrusions of the inner needle. When the inner needle is inserted between multiple contact plates, the protrusions of the inner needle are inserted into the groove of the contact plate. An inner contact sleeve is inserted into the pinhole of the socket body. The outer ring surface of the contact plate has multiple protrusions distributed at equal intervals. The inner ring surface of the inner contact sleeve has a groove structure that matches the protrusions of the contact plate. When the contact plate is pushed away from the pin sleeve by the inner pin body, the protrusions on the outer ring surface of the contact plate and the groove of the inner contact sleeve cooperate to increase the stability of the cooperation.

[0017] Optionally, a slidable release collar is fitted onto the outer side of the socket body; Vertical rods are installed on both sides of the toothed block. A release rod is provided on the upper side of the vertical rod. The upper end of the release rod is installed on the bottom surface of the release collar, and the lower end of the release rod is inclined. The vertical rod is in contact with the inclined surface of the release rod. When the release collar moves downward, it drives the release rod to push the vertical rod, thereby causing the toothed block to separate from the inclined tooth plate.

[0018] Optionally, before the primary stop block contacts the shaft block rod, the two primary stop blocks are in contact with each other under the elastic connection with the movable module, and the two primary stop blocks are distributed in a figure-eight shape with their lower sides close to each other, and the upper surfaces of the two primary stop blocks are flat.

[0019] Optionally, the support frame is arranged in a right-angled U-shape, with the U-shaped opening of the support frame facing the shaft block rod. The length of the upper side of the U-shape of the support frame is less than the length of its lower side. When the first-level stop block moves to the vertical side position of the shaft block rod, the first-level stop block contacts the lower bottom surface of the support frame. When the outer push plate pushes the two first-level stop blocks further away, the first-level stop block moves to the inner side of the short side portion of the support frame.

[0020] In summary, the present invention has the following beneficial technical effects: This invention utilizes a two-stage elastic floating design for the plug component and a conical expansion contact structure for the pin component. In the initial stage of connector docking, the contact plate is first inserted into the inner contact sleeve. After docking, the movement of the plug body relative to the movable module serves as the driving force, driving the conical surface of the inner pin body to open the contact plate, so that the contact plate and the inner contact sleeve form a surface contact. This results in a large contact area, low resistance, and the conical fit significantly improves the connection reliability of high-density pinholes under heavy-load conditions.

[0021] This invention incorporates a first-stage stop that can move laterally elastically within the locking component. As the pin component enters the pinhole, the plane formed by the contact of the two first-stage stops blocks blocks abuts and supports the lower end of the helical tooth plate, preventing the plug body from approaching the movable module. This ensures that the contact plate expands under the push of the inner pin body only after it is fully inserted into the pinhole, avoiding relative friction and wear between the contact plate and the inner contact sleeve in the expanded state, and effectively extending the service life of the connector.

[0022] This invention achieves graded locking by utilizing the linkage of the shaft block rod, the first-level stop block, the support frame, the outer push plate, the helical tooth plate, and the toothed block. The first-level stop block is guided and expanded by the semi-circular end of the shaft block rod and the lower end of the isosceles trapezoid of the outer push plate, and slides along the support frame to lock the movable module. The helical tooth plate and the toothed block form a ratchet-like step-by-step locking, which performs secondary locking on the plug body.

[0023] This invention features a sliding release ring fitted on the outer side of the socket body. By using a release rod and a linkage toothed block, the ratchet lock can be released with a single click by pulling down the release ring. At the same time, the plug component automatically springs up under the action of the elastic element, the inner pin retracts, and the contact plate returns to its contracted state and disengages from the pin hole. Moreover, the unlocking action must be actively applied, which can effectively avoid unintended unlocking caused by accidental contact. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure in an embodiment of the present invention; Figure 2 This is an exploded structural diagram of the plug component and the pin component in an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of the pin component in an embodiment of the present invention; Figure 4This is a front view schematic diagram of some structures in an embodiment of the present invention; Figure 5 This is a schematic diagram of the locking component in an embodiment of the present invention; Figure 6 This is a side view schematic diagram of some structures in an embodiment of the present invention; Figure 7 This is a schematic diagram of the distribution of the shaft block and the helical tooth plate in an embodiment of the present invention; Figure 8 This is a top view schematic diagram of some structures in an embodiment of the present invention.

[0025] Reference numerals: 1. Socket body; 11. Inner contact sleeve; 12. Release collar; 13. Vertical rod; 14. Release rod; 2. Plug assembly; 21. Plug body; 22. Movable module; 3. Pin assembly; 31. Pin sleeve; 32. Inner pin body; 321. Spacer; 33. Contact plate; 4. Locking assembly; 41. Shaft block rod; 42. Groove; 43. Slanted toothed plate; 44. First-stage stop block; 45. Outer push plate; 46. Toothed block; 47. Support frame. Detailed Implementation

[0026] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0027] It should be noted that all directional indications in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0028] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0029] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

[0030] In the overall mating connection of rectangular connectors, straight rod-type pins are generally mated with straight cylindrical pin holes. In order to ensure stable connection during mating, the pins and pin holes are interference-fitted. Although the high-density pin hole structure and multi-cavity setting meet the requirements of the number of signal transmission channels, it also brings a significant increase in insertion and extraction resistance. During the mating and separation process, excessive insertion and extraction force not only increases the difficulty of operation, but also makes it very easy for the fine pins to bend, deform or even break due to slight angular deviation.

[0031] The following is in conjunction with the appendix Figures 1-8 The present invention will be described in further detail below.

[0032] This invention discloses a dual-cavity, high-density pinhole structure quick-lock rectangular connector. For example... Figures 1-4 As shown, it includes a socket body 1, a plug component 2, a pin component 3, and a locking component 4.

[0033] The socket body 1 has multiple equally spaced pinholes near the plug component 2. The socket body 1 has a first insertion cavity and a second insertion cavity arranged in parallel inside, forming a dual-cavity structure. The two insertion cavities are independent of each other and can be used for the physical isolation transmission of power circuits and signal circuits, or different types of signals, thereby suppressing electromagnetic interference and improving signal integrity.

[0034] The plug component 2 is arranged in two sections, including a plug body 21 and a movable module 22. The movable module 22 is located between the socket body 1 and the plug body 21. The movable module 22 is sleeved on the outside of the pin component 3. The pin component 3 is connected to the plug body 21. The plug body 21 is elastically connected to the movable module 22. The plug body 21 and the movable module 22 are connected by a square elastic connection, which pushes the plug body 21 and the movable module 22 to separate. The movable module 22 and the plug body 21 are set as a whole as a plug-in part that is adapted to the double cavity of the socket body 1.

[0035] The number of pin components 3 is equal to the number of pin holes in the socket body 1. Multiple pin components 3 are positioned one-to-one with multiple socket bodies 1. The upper end of the pin component 3 is connected to the plug component 2. When the plug component 2 is close to the socket body 1, the other end of the pin component 3 can be inserted into the corresponding pin hole in the socket body 1. After being inserted into the corresponding pin hole in the socket body 1, the pin component 3 can expand. After expanding, the pin component 3 can fully fit with the inner wall of the pin hole in the socket body 1, thereby achieving low impedance and high reliability electrical contact.

[0036] Furthermore, combined Figures 3 to 4 The specific structure of the pin assembly 3 is described below. The pin assembly 3 includes a pin sleeve 31 and an inner pin body 32. The movable module 22 is sleeved and installed on the outside of the pin sleeve 31. Multiple contact plates 33 are evenly distributed around the end of the pin sleeve 31 that is inserted into the pin hole of the socket body 1. The connection between the contact plates 33 and the pin sleeve 31 can be elastically bent. The inner pin body 32 is coaxially installed with the pin sleeve 31 and is connected to the plug body 21.

[0037] When the plug body 21 approaches the active module 22, the inner needle body 32 passes through the axis of the needle sleeve 31, pushing the contact plate 33 connected to the needle sleeve 31 away from the axis of the needle sleeve 31 and bending elastically, so that the contact plate 33 contacts the inner wall of the pin hole of the socket body 1, thereby achieving expansion and fitting.

[0038] To optimize the expansion effect of the touch panel 33, such as Figure 3 As shown, the multiple contact plates 33 connected to the pin sleeve 31 are generally arranged in a conical shape. That is, the conical structure formed by the contact plates 33 is in a contracted state from the root to the end under the elasticity of the contact plates 33. The inner needle body 32 is also conical in shape. The outer diameter of the inner needle body 32 is larger than the inner diameter of the conical structure formed by the multiple contact plates 33. When the inner needle body 32 moves between the multiple contact plates 33, it can smoothly push the multiple contact plates 33 to bend outward along the axis, so that the multiple contact plates 33 open outward. Thus, after the contact plates 33 elastically deform outward, they fully fit the pin hole of the socket body 1. Since the contact plate 33 and the inner wall of the pin hole are in surface contact rather than point contact, the contact area is large and the contact resistance is small. Moreover, the multi-point contact can effectively resist vibration and avoid loosening, which significantly improves the connection reliability of the high-density pin hole structure under heavy load conditions.

[0039] Compared with the straight cylindrical fit, the conical fit between the inner needle body 32 and the needle sleeve 31 and the multiple contact plates 33 has the following advantages: the conical guide can correct minor alignment deviations in the initial stage of insertion, effectively preventing the inner needle body 32 from bending and deforming, and facilitating the smooth entry of the inner needle body 32 into the conical cavity formed by the contact plates 33. At the same time, as the inner needle body 32 goes deeper, the expansion amount increases continuously, and the contact pressure of the contact plate 33 on the inner wall of the needle hole gradually increases, making the contact tighter.

[0040] In this embodiment, the plug body 21 can elastically float relative to the movable module 22 along the docking direction. The significance of this two-stage setting is that, in the initial stage of connector docking, the movable module 22 first contacts and positions itself with the socket body 1. At this time, the pin sleeve 31 and the connected contact plate 33 are first inserted into the corresponding pin hole of the socket body 1. The plug body 21 can float relative to the movable module 22, thereby compensating for assembly errors and ensuring synchronous alignment of the dual-cavity multi-pin hole. After docking, the elastic movement of the plug body 21 relative to the movable module 22 can also serve as a driving force to drive the inner pin body 32 to push the contact plate 33 to expand and fit against the inner wall of the pin hole, realizing the segmented action of insertion and expansion locking.

[0041] Furthermore, multiple spacers 321 are installed on the outer ring surface of the inner needle body 32. The number of spacers 321 is equal to the number of contact plates 33 connected to the needle sleeve 31. The spacers 321 and contact plates 33 are alternately distributed. When the inner needle body 32 is inserted between the multiple contact plates 33 connected to the needle sleeve 31, the spacers 321 are located between two adjacent contact plates 33 to prevent the contact plates 33 from interfering with each other during expansion, ensuring that each contact plate 33 is subjected to uniform force, thereby making the bending deformation of each contact plate 33 consistent. This ensures that the inner needle body 32 applies expansion force to the multiple contact plates 33 evenly, and the contact pressure between each contact plate 33 and the inner wall of the needle hole is balanced, further improving contact reliability. At the same time, it effectively ensures that the contact plates 33 will not shift when they are elastically bent, and at the same time, it achieves circumferential positioning, preventing relative rotation between the inner needle body 32 and the needle sleeve 31, and ensuring the consistency and repeatability of the expansion action.

[0042] To further improve the stability of the connection and the anti-rotation effect, the outer ring surface of the inner needle body 32 is equipped with multiple protrusions distributed at equal intervals, and the inner ring surface of the contact plate 33 is provided with a groove structure that matches the protrusions of the inner needle body 32. When the inner needle body 32 is inserted between multiple contact plates 33, the protrusions of the inner needle body 32 are inserted into the groove of the contact plate 33, which plays a circumferential positioning role.

[0043] Meanwhile, an inner contact sleeve 11 is installed inside the pinhole of the socket body 1. The outer ring surface of the contact plate 33 is provided with multiple protrusions distributed at equal intervals. The inner ring surface of the inner contact sleeve 11 is provided with a groove structure that matches the protrusions of the contact plate 33. When the contact plate 33 is pushed away from the pin sleeve 31 by the inner pin body 32, the protrusions on the outer ring surface of the contact plate 33 and the groove of the inner contact sleeve 11 cooperate. The meshing structure increases the mechanical engagement between the contact plate 33 and the inner contact sleeve 11 on the one hand, preventing poor contact caused by relative rotation, and on the other hand, increases the contact area, further increasing the stability of the engagement, so that the connector can still maintain good signal contact in a strong vibration environment.

[0044] After the connector is plugged in, the traditional method of locking the connection between the plug body 21 and the socket body 1 by bolting cannot automatically lock the connection by coordinating the movement of the plug body 21 and the socket body 1.

[0045] Furthermore, combined Figures 5 to 8 There are two locking components 4. The plug component 2 and the socket body 1 are located between the two locking components 4. The two ends of the locking component 4 are connected to the plug component 2 and the socket body 1 respectively. The locking component 4 can be disassembled to separate the plug component 2 and the socket body 1.

[0046] The locking component 4 is the core mechanism for realizing the quick lock of the connector. It includes a shaft rod 41, a helical tooth plate 43, a first-level stop block 44, an outer push plate 45, and a tooth block 46. The two locking components 4 are respectively arranged on both sides of the overall width of the connector, which can ensure that the force on both sides is balanced when the double cavities are connected, effectively avoiding the shear difference phenomenon and the risk of pin bending caused by uneven force.

[0047] One end of the shaft rod 41 is vertically installed on the side of the socket body 1. The upper end of the shaft rod 41 is semi-circular to facilitate the sliding of the first-stage stop 44. The lower end of the shaft rod 41 is plate-shaped to provide support. The other end face of the shaft rod 41 has a through slot 42.

[0048] Two primary stop blocks 44 are provided, and the shaft rod 41 is located between the two primary stop blocks 44. When the movable module 22 and the plug body 21 move into the socket body 1, the primary stop blocks 44 first make semi-circular contact with the shaft rod 41, so that the two primary stop blocks 44 move away from each other. The primary stop blocks 44 make contact with the rectangular side of the shaft rod 41. Then, after the plug body 21 approaches the movable module 22, the helical tooth plate 43 is inserted into the groove 42, so that the helical tooth plate 43 can move up and down along the groove 42, limiting the movement of the movable module 22 and the plug body 21. The side of the helical tooth plate 43 near the socket body 1 has multiple right-angle tooth grooves. The upper side wall of the right-angle tooth groove is inclined to facilitate the insertion, and the lower side wall is right-angled to lock and limit the movement. The side of the movable module 22 is slidably sleeved on the outside of the helical tooth plate 43, so that the helical tooth plate 43 can move in conjunction with the movement of the movable module 22.

[0049] The first-level stop block 44 is connected to the movable module 22 and can move laterally relative to the movable module 22. The first-level stop block 44 is elastically connected to the movable module 22, preferably by a laterally arranged compression spring. Before the first-level stop block 44 contacts the shaft rod 41, the two first-level stop blocks 44 contact each other under the action of elastic force. The two first-level stop blocks 44 are distributed in a figure-eight shape on the lower side of one end of each other. The upper surface of the two first-level stop blocks 44 is flat. Before the first-level stop block 44 contacts the shaft rod 41, the flat surface formed by the two first-level stop blocks 44 blocks and supports the lower end of the helical tooth plate 43. At this time, when a pushing force is applied to the plug body 21, the plug body 21 will not approach the movable module 22. This further ensures that the inner needle body 32 will not be inserted into the conical space formed between the contact plates 33 before the pin sleeve 31 and the contact plate 33 enter the pin hole of the socket body 1. This ensures that the contact plate 33 is in a retracted state before entering the pin hole of the socket body 1.

[0050] A support frame 47 is fitted onto the side of the primary stop block 44 away from the shaft rod 41. The support frame 47 is installed on the side of the socket body 1 and is arranged in a right-angled U-shape. The opening of the U-shape of the support frame 47 faces the shaft rod 41. The length of the upper side of the U-shape of the support frame 47 is shorter than the length of its lower side. When the primary stop block 44 moves to the vertical side position of the shaft rod 41, the primary stop block 44 contacts the lower bottom surface of the support frame 47. When the outer push plate 45 pushes the two primary stop blocks 44 further away, the primary stop block 44... When moved to the inside of the short side of the support frame 47, the first-level stop 44 can slide laterally within the support frame 47. When the two first-level stop 44 contact the vertical surfaces on both sides of the shaft rod 41 respectively, the two first-level stop 44 can move downward from the short side of the support frame 47 to contact the inner bottom wall of the long side of the support frame 47. The inner bottom wall of the long side of the support frame 47 supports the first-level stop 44. When the push force is continued to be applied to the plug body 21, the plug body 21 will move closer to the movable module 22 due to the support resistance of the movable module 22.

[0051] The push plate 45 is installed on the side of the helical tooth plate 43 away from the movable module 22. The push plate 45 is located between the two primary stops 44. The lower end of the push plate 45 is set in an isosceles trapezoid, and the upper end of the push plate 45 is connected to the plug body 21. When the plug component 2 moves down to engage, the two primary stops 44 are guided by the shaft rod 41 and move away from each other to expand laterally. When the movable module 22 contacts the socket body 1, the two primary stops 44 can move down from the short side of the support 47 to contact the inner bottom wall of the long side of the support 47, and then the plug... As the head body 21 approaches the movable module 22, the outer push plate 45 moves down with the plug body 21 and pushes the two first-level stops 44 to continue opening by means of the lower end of its isosceles trapezoid. This allows the first-level stops 44 to continue moving away from the shaft rod 41 and inserting into the inner side of the short side of the support frame 47, thus initially locking the movable module 22 and the socket body 1. During this movement, the pin sleeve 31 and the contact plate 33 of the pin component 3 enter the inner contact sleeve 11 inside the pin hole of the socket body 1 in the retracted state, reducing the wear when the contact plate 33 and the inner contact sleeve 11 move relative to each other.

[0052] One side of the toothed block 46 is elastically connected to the socket body 1, and the other side of the toothed block 46 is toothed. The toothed shape of the toothed block 46 is adapted to the right-angle tooth groove of the inclined tooth plate 43. When the plug body 21 is close to the movable module 22, the inclined tooth plate 43 moves downward and eventually contacts the toothed block 46, pushing the toothed block 46 to continuously and elastically approach the movable module 22, so that the teeth of the toothed block 46 are continuously locked into the right-angle tooth groove of the inclined tooth plate 43, forming a ratchet locking effect of step-by-step locking. At the same time, the inner needle body 32 is inserted between multiple contact plates 33 inside the needle sleeve 31, pushing the contact plate 33 to bend and fully fit into the inner contact sleeve 11. After locking into place, the toothed block 46 remains locked with the right-angle tooth groove under the action of elastic force, ensuring that the connection will not loosen on its own due to vibration, thus making the contact plate 33 and the inner contact sleeve 11 stably fit together.

[0053] When it is necessary to separate them, it is necessary to simultaneously control the toothed blocks 46 on both sides to cooperate with the corresponding inclined toothed plates 43. At the same time, if it is inconvenient to control with both hands, the contact plate 33 can be pulled out from the pinhole.

[0054] To achieve fast unlocking, such as Figure 5 and Figure 6As shown, a slidable release collar 12 is sleeved on the outer side of the socket body 1. Vertical rods 13 are installed on both sides of the toothed block 46. A release rod 14 is provided on the upper side of the vertical rod 13. The upper end of the release rod 14 is installed on the bottom surface of the release collar 12, and the lower end of the release rod 14 is inclined. The vertical rod 13 contacts the inclined surface. When unlocking is required, the release collar 12 is moved downward. The release collar 12 drives the release rod 14 to move downward. The inclined surface pushes the vertical rod 13 to move towards the moving module 22, thereby causing the toothed block 46 to overcome the elastic force and disengage from the inclined tooth plate 43, releasing the locked state. At the same time, since the unlocking action needs to be actively applied, it can effectively avoid unintended unlocking caused by accidental contact, taking into account both the convenience of quick locking and the reliability of connection.

[0055] During the mating process, the plug component 2 is pushed towards the socket body 1 along the mating direction. When the movable module 22 is close to the socket body 1, the plane formed by the two primary stop blocks 44 blocks the lower end of the helical tooth plate 43 for blocking and support. At this time, when a pushing force is applied to the plug body 21, the plug body 21 will not approach the movable module 22. The pin sleeve 31 and the contact plate 33 of the pin component 3 are inserted into the corresponding inner contact sleeve 11 in the retracted state. At the same time, the shaft rods 41 of the two locking components 4 are inserted between the corresponding primary stop blocks 44. The primary stop blocks 44 are opened along the semi-circular end of the upper end of the shaft rod 41 and the figure-eight guide opening. When the primary stop blocks 44 move to the vertical side position of the shaft rod 41, the primary stop blocks 44 contact the lower bottom surface of the support frame 47. The inner bottom wall of the long side of the support frame 47 supports the primary stop blocks 44.

[0056] As the push force continues to be applied to the plug body 21, the plug body 21 approaches the movable module 22, and the inner pin 32 enters between the contact plates 33 along with the plug body 21. At the same time, the inner pin 32 moves forward within the pin sleeve 31, and its conical surface expands the contact plate 33, so that the contact plate 33 and the inner contact sleeve 11 fit tightly together, realizing the expansion locking of the electrical connection. At the same time, the outer push plate 45 moves down with the plug body 21, and its isosceles trapezoidal lower end pushes the first-level stop block 44 to expand laterally and slide along the support frame 47, so that the first-level stop block 44 retracts into the inside of the short side of the support frame 47, so that the first-level stop block 44 cannot move up and down relative to the support frame 47. As the plug body 21 continues to approach the movable module 22, the helical tooth plate 43 moves down with the movable module 22, and its right-angle tooth groove slides along the tooth block 46. Under the action of elasticity, the tooth block 46 is locked into the right-angle tooth groove step by step, realizing one-way locking.

[0057] When separation is required, pull down the release collar 12. The release rod 14 pushes the vertical rod 13 through the inclined surface, causing the toothed block 46 to disengage from the right-angle tooth groove of the inclined tooth plate 43. At this time, the inclined tooth plate 43 is unlocked. Under the action of the elastic element between the movable module 22 and the plug body 21, the plug component 2 springs outward as a whole. The inner pin 32 retracts with the plug body 21, and the contact plate 33 recovers its elastic deformation and contracts. When the contact plate 33 is disengaged, it is in a contracted state and does not contact the inner wall of the inner contact sleeve 11 to rub against each other, reducing wear between the structures. At the same time, the outer push plate 45 moves upward and disengages from the first-level stop 44. Under the action of elastic force, the first-level stop 44 approaches the shaft rod 41. The first-level stop 44 disengages from the short side lock of the support frame 47 and can move upward relative to the support frame 47. The movable module 22 drives the contact plate 33 to disengage from the inner contact sleeve 11, so that the plug component 2 can be completely pulled out from the socket body 1.

[0058] The above are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A dual-cavity high-density pinhole structure quick-lock rectangular connector, comprising a socket body (1), characterized in that, Also includes: The plug component (2) is arranged in two sections, and the socket body (1) has multiple equally spaced pinholes at one end near the plug component (2). The number of pin components (3) is equal to the number of pin holes in the socket body (1). Multiple pin components (3) are arranged in a one-to-one correspondence with multiple socket bodies (1). The upper end of the pin component (3) is connected to the plug component (2). When the plug component (2) is close to the socket body (1), the other end of the pin component (3) can be inserted into the corresponding pin hole of the socket body (1). After the pin component (3) is inserted into the corresponding pin hole of the socket body (1), it can expand. After the pin component (3) expands, it can fully fit the inner wall of the pin hole of the socket body (1). The locking component (4) has two parts. The plug component (2) and the socket body (1) are located between the two locking components (4). The two ends of the locking component (4) are connected to the plug component (2) and the socket body (1) respectively. The locking component (4) can be separated to separate the plug component (2) and the socket body (1).

2. The quick-lock rectangular connector with a dual-cavity high-density pinhole structure according to claim 1, characterized in that: The plug component (2) includes a plug body (21) and a movable module (22). The movable module (22) is located between the socket body (1) and the plug body (21). The movable module (22) is sleeved on the outside of the pin component (3). The pin component (3) is connected to the plug body (21). The plug body (21) is elastically connected to the movable module (22).

3. The quick-lock rectangular connector with a dual-cavity high-density pinhole structure according to claim 2, characterized in that: The pin component (3) includes: The needle sleeve (31) is fitted with the active module (22) on the outside of the needle sleeve (31). Multiple contact plates (33) are evenly distributed around the end of the needle sleeve (31) inserted into the needle hole of the socket body (1). The contact plates (33) can be elastically bent at the connection between the needle sleeve (31). The inner needle body (32) is coaxially installed with the needle sleeve (31). The inner needle body (32) is connected to the plug body (21). When the plug body (21) approaches the active module (22), the inner needle body (32) passes through the axis of the needle sleeve (31) and pushes the contact plate (33) connected to the needle sleeve (31) away from the axis of the needle sleeve (31) and bends elastically, so that the contact plate (33) contacts the inner wall of the pin hole of the socket body (1).

4. A quick-lock rectangular connector with a dual-cavity high-density pinhole structure according to claim 3, characterized in that: The locking component (4) includes: A shaft rod (41) is installed vertically on the side of the socket body (1) at one end. The upper end of the shaft rod (41) is semi-circular, and the lower end of the shaft rod (41) is plate-shaped. A slot (42) is opened on the other end face of the shaft rod (41) that runs through the top and bottom. The inclined tooth plate (43) is slidably inserted into the slot (42). The inclined tooth plate (43) has multiple right-angle tooth grooves on the side near the socket body (1). The upper side wall of the right-angle tooth groove of the inclined tooth plate (43) is an inclined surface. The movable module (22) is slidably sleeved on the outside of the inclined tooth plate (43). Two primary stop blocks (44) are provided. The shaft rod (41) is located between the two primary stop blocks (44). The primary stop blocks (44) are connected to the movable module (22). The primary stop blocks (44) can move laterally relative to the movable module (22). The primary stop blocks (44) are elastically connected to the movable module (22). A support frame (47) is sleeved on the side of the primary stop blocks (44) away from the shaft rod (41). The support frame (47) is installed on the side of the socket body (1). The primary stop blocks (44) can slide laterally within the support frame (47). The outer push plate (45) is installed on the side of the inclined tooth plate (43) away from the active module (22). The outer push plate (45) is located between two first-level stops (44). The lower end of the outer push plate (45) is set in an isosceles trapezoidal shape. The upper end of the outer push plate (45) is connected to the plug body (21). The toothed block (46) has one side elastically connected to the socket body (1) and the other side of the toothed block (46) is toothed. The toothed shape of the toothed block (46) is adapted to the right-angle tooth groove of the inclined tooth plate (43). When the inclined tooth plate (43) moves downward and contacts the toothed block (46), it pushes the toothed block (46) to continuously and elastically approach the active module (22).

5. A quick-lock rectangular connector with a dual-cavity high-density pinhole structure according to claim 3, characterized in that: The inner needle body (32) has multiple spacers (321) installed on its outer ring surface. The number of spacers (321) is the same as the number of contact plates (33) connected to the needle sleeve (31). When the inner needle body (32) is inserted between the multiple contact plates (33) connected to the needle sleeve (31), the spacers (321) are located between two adjacent contact plates (33).

6. A quick-lock rectangular connector with a dual-cavity high-density pinhole structure according to claim 5, characterized in that: The multiple contact plates (33) connected to the needle sleeve (31) are generally arranged in a conical shape. The inner needle body (32) is conical in shape. The outer diameter of the inner needle body (32) is larger than the inner diameter of the conical shape formed by the multiple contact plates (33). When the inner needle body (32) moves between the multiple contact plates (33), it pushes the multiple contact plates (33) connected to the needle sleeve (31) to bend outward along the axis.

7. A quick-lock rectangular connector with a dual-cavity high-density pinhole structure according to claim 6, characterized in that: The outer ring surface of the inner needle body (32) is equipped with a plurality of equally spaced protrusions, and the inner ring surface of the contact plate (33) is provided with a groove structure that matches the protrusions of the inner needle body (32). When the inner needle body (32) is inserted between multiple contact plates (33), the protrusions of the inner needle body (32) are inserted into the groove of the contact plate (33). The socket body (1) has an inner contact sleeve (11) inserted into the pinhole. The outer ring surface of the contact plate (33) has multiple protrusions distributed at equal intervals. The inner ring surface of the inner contact sleeve (11) has a groove structure that matches the protrusions of the contact plate (33). When the contact plate (33) moves away from the pin sleeve (31) elastically under the push of the inner pin body (32), the protrusions on the outer ring surface of the contact plate (33) match the groove of the inner contact sleeve (11), increasing the stability of the match.

8. A quick-lock rectangular connector with a dual-cavity high-density pinhole structure according to claim 4, characterized in that: The socket body (1) is fitted with a sliding release collar (12) on the outside. The toothed block (46) is vertically mounted on both sides with a vertical rod (13). A release rod (14) is provided on the upper side of the vertical rod (13). The upper end of the release rod (14) is mounted on the bottom surface of the release collar (12). The lower end of the release rod (14) is inclined. The vertical rod (13) contacts the inclined surface of the release rod (14). When the release collar (12) moves downward, it drives the release rod (14) to push the vertical rod (13), thereby causing the toothed block (46) to separate from the inclined tooth plate (43).

9. A quick-lock rectangular connector with a dual-cavity high-density pinhole structure according to claim 8, characterized in that: Before the first-level stop (44) contacts the shaft rod (41), the two first-level stop (44) are in contact with each other under the elastic connection with the movable module (22). The two first-level stop (44) are close to each other at one end and are distributed in a figure-eight shape. The upper surface of the two first-level stop (44) is flat.

10. A quick-lock rectangular connector with a dual-cavity high-density pinhole structure according to claim 9, characterized in that: The support frame (47) is arranged in a right-angled U-shape. The U-shaped opening of the support frame (47) faces the shaft block (41). The length of the upper side of the U-shape of the support frame (47) is less than the length of its lower side. When the first-level stop block (44) moves to the vertical side position of the shaft block (41), the first-level stop block (44) contacts the lower bottom surface of the support frame (47). When the outer push plate (45) pushes the two first-level stop blocks (44) to continue to move away, the first-level stop blocks (44) move to the inner side of the short side of the support frame (47).

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