A bidirectional locking space rod connector and its usage method

Abstract

This invention discloses a bidirectional locking space rod connector and its usage method, relating to the field of space truss connection technology. It includes a first docking member, a second docking member, a locking mechanism, a first unlocking member, and a second unlocking member. The connecting ends of the first and second docking members are respectively provided with a first locking member and a second locking member. The locking mechanism has elastic locking members at both ends corresponding to the first and second locking members. When the two docking members are inserted into their respective positions, the corresponding elastic locking members engage and lock with the locking members. The first and second unlocking members are respectively fitted onto the outside of the first and second docking members, respectively damped and locked with the corresponding positions of the locking mechanism. Rotation pushes all the elastic locking members at the corresponding positions to move radially away from the docking members synchronously, releasing the engagement and unlocking the corresponding docking members. This connector can achieve reliable bidirectional locking, improve assembly efficiency, reduce costs, and promote the integrated development of space and ground systems.

Description

Technical Field

[0001] This invention relates to the field of space truss connection technology, and in particular to a bidirectional locking space rod connector and its usage method. Background Technology

[0002] With the rapid development of aerospace technology, large truss-type space structures have become the core framework of on-orbit infrastructure for spacecraft such as space stations, large antennas, and solar panels. The on-orbit construction of such truss structures faces a series of bottlenecks that urgently need to be addressed. On the one hand, limited by the size of the launch vehicle's fairing and launch mass constraints, large truss structures cannot be launched into orbit as a whole and must be assembled in orbit using modular components. However, prefabrication and packaging on the ground results in large volume and high launch costs, and manual assembly by astronauts outside the spacecraft is inefficient and extremely risky. Therefore, developing rapid connection devices that can be autonomously operated by robotic arms has become a key technological direction for overcoming the bottlenecks in on-orbit construction. At the same time, in ground-based industrial settings, the connection of components in large steel structures, temporary support frames, and modular buildings also presents an urgent need for connectors with versatility and ease of assembly.

[0003] Currently, existing space component connection devices mainly employ bolted flange connections, pin insertion, or threaded engagement. Taking bolted flange connections as an example, their operation is cumbersome, requires high alignment precision, and is unsuitable for the rapid autonomous operation of robotic arms. While pin insertion offers faster engagement, it struggles to achieve reliable axial bidirectional locking and is prone to loosening under vibration or impact loads. In the field of ground connectors, although existing products are diverse, they generally suffer from limited compatibility and cumbersome operation procedures. More critically, current space connectors and ground connectors belong to different technological routes, resulting in poor component interchangeability and incompatibility between space-ground systems. This not only leads to high R&D and manufacturing costs but also hinders the coordinated development of integrated space-ground technology systems.

[0004] In conclusion, developing a universal connector with bidirectional locking capability, adaptability to various rods, and suitability for both space and ground applications is an urgent need to overcome truss construction bottlenecks, reduce aerospace costs, and improve ground assembly efficiency. Summary of the Invention

[0005] The purpose of this invention is to provide a bidirectional locking space rod connector and its usage method to solve the problems existing in the prior art, achieve reliable bidirectional locking, improve assembly efficiency, reduce costs, and promote the integrated development of space and ground systems.

[0006] To achieve the above objectives, the present invention provides the following solution: This invention provides a bidirectional locking spatial rod connector, comprising: a first mating member, a second mating member, a locking mechanism, a first unlocking member, and a second unlocking member. The first mating member has multiple first locking members at its connecting end; the second mating member has multiple second locking members at its connecting end; the locking mechanism has a first locking position and a second locking position at both ends. The first locking position has multiple first elastic locking members, and the second locking position has multiple second elastic locking members. One first elastic locking member corresponds to one first locking member. When the first mating member is inserted into the first locking position, the first elastic locking member engages and locks with the corresponding first locking member, achieving axial and circumferential mechanical locking between the first mating member and the locking mechanism. One second elastic locking member corresponds to one second locking member. When the second mating member is inserted into the second locking position, the second elastic locking member engages and locks with the corresponding second locking member, achieving a second pair of... The first unlocking member is sleeved on the outside of the first docking member and damped locked at one end of the locking mechanism with the first locking position. When subjected to a torque exceeding a set threshold in the circumferential direction, the first unlocking member can rotate relative to the locking mechanism. During rotation, it can push all first elastic locking members to move synchronously in a radial direction away from the first docking member, releasing the engagement between the first elastic locking member and its corresponding first locking member, thus unlocking the first docking member. The second unlocking member is sleeved on the outside of the second docking member and damped locked at one end of the locking mechanism with the second locking position. When subjected to a torque exceeding a set threshold in the circumferential direction, the second unlocking member can rotate relative to the locking mechanism. During rotation, it can push all second elastic locking members to move synchronously in a radial direction away from the second docking member, releasing the engagement between the second elastic locking member and its corresponding second locking member, thus unlocking the second docking member.

[0007] Preferably, the locking mechanism includes a sleeve extending axially. The inner wall of the sleeve has a first locking position and a second locking position at its two ends, respectively. The first locking position has a plurality of first mounting grooves circumferentially arranged. Each first elastic locking member is disposed in its corresponding first mounting groove and can slide radially along the sleeve. A first limiting block is provided at the opening of the first mounting groove. A first limiting groove is provided on the side of the first elastic locking member facing the opening of the first mounting groove. The first limiting groove cooperates with the first limiting block to restrict the radial sliding position of the first elastic locking member. The second locking position has a plurality of second mounting grooves circumferentially arranged. Each second elastic locking member is disposed in its corresponding second mounting groove and can slide radially along the sleeve. A second limiting block is provided at the opening of the second mounting groove. A second limiting groove is provided on the side of the second elastic locking member facing the opening of the second mounting groove. The second limiting block cooperates with the second limiting groove to restrict the radial sliding position of the second elastic locking member.

[0008] Preferably, the first elastic locking member includes a first toothed plate and a plurality of first springs. One end of each first spring is connected to the bottom plate of the first mounting groove, and the other end is connected to the back of the first toothed plate. The first locking member includes a second toothed plate and a plurality of first countersunk screws. The second toothed plate is fixedly connected to the outer periphery of the first mating member by the plurality of first countersunk screws. The first toothed plate has a first wedge-shaped locking tooth on the side facing the first mating member, and the second toothed plate also has a matching second wedge-shaped locking tooth on the side facing the first elastic locking member. Under the elastic force of the first spring, the first wedge-shaped locking tooth engages with the second wedge-shaped locking tooth to restrict the first mating member and the sleeve from moving away from each other and from rotating circumferentially relative to each other. The second elastic locking member includes a third toothed plate and a plurality of second springs. One end of the second spring is connected to the bottom plate of the second mounting groove, and the other end is connected to the back of the third toothed plate. The second locking member includes a fourth toothed plate and a plurality of second countersunk screws. The fourth toothed plate is fixedly connected to the outer periphery of the second mating member by the plurality of second countersunk screws. The third toothed plate is provided with a third wedge-shaped locking tooth on the side facing the second mating member, and the fourth toothed plate is also provided with a matching fourth wedge-shaped locking tooth on the side facing the second elastic locking member. Under the elastic force of the second spring, the third wedge-shaped locking tooth and the fourth wedge-shaped locking tooth engage to restrict the second mating member and the sleeve from moving away from each other and to restrict circumferential relative rotation.

[0009] Preferably, the first elastic locking member further includes a first slider, a plurality of first sliding pillars, and a plurality of first retaining rings. A plurality of first sliding grooves are provided on the sidewall of the first mounting groove. The first slider is fixedly connected to one end of the first toothed plate. A plurality of first fixing grooves are provided on both sides of the first slider. First retaining ring mounting grooves are provided at both ends of the first fixing grooves. The first retaining rings are correspondingly installed in the first retaining ring mounting grooves to fix the first sliding pillars in the first fixing grooves. The portion of the first sliding pillar protruding from the first fixing groove is slidably connected to the first sliding groove. The second elastic locking member further includes a second slider, a plurality of second sliding pillars, and a plurality of second retaining rings. A plurality of second sliding grooves are provided on the sidewall of the second mounting groove. The second slider is fixedly connected to one end of the second toothed plate. A plurality of second fixing grooves are provided on both sides of the second slider. Second retaining ring mounting grooves are provided at both ends of the second fixing grooves. The second retaining rings are correspondingly installed in the second retaining ring mounting grooves to fix the second sliding pillars in the second fixing grooves. The portion of the second sliding pillar protruding from the second fixing groove is slidably connected to the second sliding groove.

[0010] Preferably, the locking mechanism further includes a first rigid cover plate and a second rigid cover plate, which are respectively fixedly connected to both ends of the housing. The first unlocking component is a first rotating end cover, and the second unlocking component is a second rotating end cover. A plurality of first magnetic components are provided on the side of the first rotating end cover near the first rigid cover plate, and a plurality of second magnetic components are provided on the side of the second rotating end cover near the second rigid cover plate. The first magnetic components magnetically attract the first rigid cover plate to achieve damped locking of the first rotating end cover and the housing, and the second magnetic components magnetically attract the second rigid cover plate to achieve damped locking of the second rotating end cover and the housing.

[0011] Preferably, the first rigid cover plate is a first annular plate, which is composed of multiple first arc-shaped plates, and each of the first arc-shaped plates is fixedly connected to the housing, and the first mounting groove is disposed on the inner side of the first annular plate. The second rigid cover plate is a second annular plate, which is composed of multiple second arc-shaped plates, and each of the second arc-shaped plates is fixedly connected to the housing, and the second mounting groove is disposed on the inner side of the second annular plate.

[0012] Preferably, the first elastic locking member further includes a first connecting rod, which is fixedly connected to the first slider. The second elastic locking member further includes a second connecting rod, which is fixedly connected to the second slider. A first annular guide rail is provided on the side of the first rotating end cap near the first rigid cover plate. The end of the first connecting rod away from the first slider is slidably connected to the first annular guide rail. The first annular guide rail has locking positions and releasing positions spaced apart in the circumferential direction. When the first rotating end cap is rotated, the first annular guide rail rotates synchronously, causing the first connecting rod to gradually move from the locking position to the releasing position of the first annular guide rail, thereby driving the first slider and the first toothed plate. The second rotating end cap moves synchronously away from the first docking member, causing the first wedge-shaped locking tooth to disengage from the second wedge-shaped locking tooth. A second annular guide rail is provided on the side of the second rotating end cap near the second rigid cover plate. The end of the second connecting rod away from the second slider is slidably connected to the second annular guide rail. The second annular guide rail also has a locking position and a releasing position spaced apart in the circumferential direction. When the second rotating end cap is rotated, the second annular guide rail rotates synchronously, causing the second connecting rod to gradually move from the locking position to the releasing position of the second annular guide rail. This drives the second slider and the third toothed plate to move synchronously away from the second docking member, causing the third wedge-shaped locking tooth to disengage from the fourth wedge-shaped locking tooth.

[0013] Preferably, the first annular guide rail includes a first arc-shaped segment connected in sequence, the radius of the two ends of the first arc-shaped segment being greater than the radius of the middle part of the first arc-shaped segment, so that the release position is formed at the two ends of the first arc-shaped segment and the locking position is formed at the middle part of the first arc-shaped segment. The second annular guide rail includes a second arc-shaped segment connected in sequence, the radius of the two ends of the second arc-shaped segment being greater than the radius of the middle part of the second arc-shaped segment, so that the release position is formed at the two ends of the second arc-shaped segment and the locking position is formed at the middle part of the second arc-shaped segment.

[0014] Preferably, the first arc segment has a smooth transition structure, the central angle of the first arc segment is 90 degrees, the number of the first elastic locking members is four, the four first elastic locking members are evenly arranged in the circumferential direction of the housing, the number of the first locking members is four, the four first locking members are evenly arranged in the circumferential direction of the first mating member, the second arc segment has a smooth transition structure, the central angle of the second arc segment is 90 degrees, the number of the second elastic locking members is four, the four second elastic locking members are evenly arranged in the circumferential direction of the housing, the number of the second locking members is four, the four second locking members are evenly arranged in the circumferential direction of the second mating member.

[0015] The present invention also provides a method of using a bidirectional locking space rod connector as described in any of the preceding claims, comprising the following steps: The docking and locking steps are as follows: The first docking member is inserted axially into the first locking position of the locking mechanism. Under the action of radial elastic force, each of the first elastic locking members automatically engages and locks with the corresponding first locking member, thereby achieving axial and circumferential locking between the first docking member and the locking mechanism; The second docking member is inserted axially into the second locking position of the locking mechanism. Under the action of radial elastic force, each of the second elastic locking members automatically engages and locks with the corresponding second locking member, thereby achieving axial and circumferential locking between the second docking member and the locking mechanism. Unlocking steps: When the first docking member needs to be unlocked, a circumferential torque exceeding a set threshold is applied to the first unlocking member, causing it to overcome damping lock and rotate relative to the locking mechanism. During rotation, the first unlocking member pushes all the first elastic locking members to move outward radially in sync, disengaging each of the first elastic locking members from their corresponding first locking members. Then, the first docking member is pulled out axially from the first locking position to unlock the first docking member. When the second docking member needs to be unlocked, a circumferential torque exceeding a set threshold is applied to the second unlocking member, causing it to overcome damping lock and rotate relative to the locking mechanism. During rotation, the second unlocking member pushes all the second elastic locking members to move outward radially in sync, disengaging each of the second elastic locking members from their corresponding second locking members. Then, the second docking member is pulled out axially from the second locking position to unlock the second docking member.

[0016] The present invention achieves the following technical effects compared to the prior art: This invention provides a bidirectional locking space rod connector and its usage method. By setting independent elastic locking structures at both ends of the locking mechanism, and cooperating with two rotatable unlocking components, it can simultaneously achieve bidirectional independent mechanical locking and unlocking of the docking rods at both ends. The locking state is stable and reliable, and can simultaneously restrict axial movement and circumferential relative rotation, adapting to the assembly requirements of rod trusses in different scenarios. During docking, locking is automatically completed by simply inserting the rod axially, without any additional operation. Unlocking is completed by simply applying a circumferential torque of a set threshold to the unlocking component. The operation is simple, and the assembly and disassembly efficiency is high. It can meet the rapid assembly requirements of large ground trusses and also adapt to the on-orbit construction requirements of space trusses in aerospace scenarios. The structure has strong versatility and can effectively reduce the overall cost of truss construction, providing hardware support for the collaborative development of the space-ground integrated technology system. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A schematic diagram of the structure of the bidirectional locking space rod connector provided by the present invention; Figure 2 A schematic diagram of the structure of the first mating rod in the bidirectional locking space rod connector provided by the present invention; Figure 3 A schematic diagram of the structure of the first unlocking element in the bidirectional locking space rod connector provided by the present invention; Figure 4 A schematic diagram of the locking mechanism in the bidirectional locking space rod connector provided by the present invention; Figure 5 A schematic diagram of the structure of the first elastic locking member in the bidirectional locking space rod connector provided by the present invention; Figure 6 A schematic diagram of the structure of the first elastic locking member and the first locking member when engaged in the bidirectional locking space rod connector provided by the present invention; In the diagram: 1. First mating part; 11. First locking part; 111. Second toothed plate; 112. First countersunk screw; 2. Second mating part; 3. Locking mechanism; 31. Housing; 32. First elastic locking part; 321. First toothed plate; 322. First spring; 323. First slider; 324. First sliding column; 325. First snap ring; 326. First connecting rod; 327. First limiting groove; 33. First rigid cover plate; 34. First limiting block; 4. First unlocking part; 41. First rotating end cap; 42. First annular guide rail; 43. First magnetic part; 5. Second unlocking part. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] The purpose of this invention is to provide a bidirectional locking space rod connector and its usage method to solve the problems existing in the prior art, achieve reliable bidirectional locking, improve assembly efficiency, reduce costs, and promote the integrated development of space and ground systems.

[0021] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] Example 1 This embodiment provides a bidirectional locking space rod connector, such as... Figures 1-6As shown, it includes: a first docking member 1, a second docking member 2, a locking mechanism 3, a first unlocking member 4, and a second unlocking member 5. The connecting end of the first docking member 1 is provided with multiple first locking members 11; the connecting end of the second docking member 2 is provided with multiple second locking members; the locking mechanism 3 has a first locking station and a second locking station at both ends. The first locking station is provided with multiple first elastic locking members 32, and the second locking station is provided with multiple second elastic locking members. One first elastic locking member 32 corresponds to one first locking member 11. When the first docking member 1 is inserted into the first locking station, the first elastic locking member 32 and the corresponding first locking member 11 engage and lock together, realizing the first pair... The second docking piece 2 is mechanically locked to the locking mechanism 3 in both the axial and circumferential directions. A second elastic locking element is correspondingly provided with another second locking element. When the second docking piece 2 is inserted into the second locking position, the second elastic locking element engages and locks with its corresponding second locking element, achieving mechanical locking between the second docking piece 2 and the locking mechanism 3 in both the axial and circumferential directions. The first unlocking element 4 is sleeved on the outside of the first docking piece 1 and damped and locked at one end of the locking mechanism 3 where the first locking position is located. When the first unlocking element 4 is subjected to a torque exceeding a set threshold in the circumferential direction, it can rotate relative to the locking mechanism 3. During rotation, it can push all the first elastic locking elements 32 to move synchronously in a radial direction away from the first docking piece 1. The engagement between the first elastic locking member 32 and the corresponding first locking member 11 is released, thereby unlocking the first docking member 1. The second unlocking member 5 is sleeved on the outside of the second docking member 2 and damped locked at one end of the locking mechanism 3, which has a second locking position. The second unlocking member 5 can rotate relative to the locking mechanism 3 when subjected to a torque exceeding a set threshold in the circumferential direction. When rotating, it can push all the second elastic locking members to move synchronously in the radial direction away from the second docking member 2, thereby releasing the engagement between the second elastic locking member and the corresponding second locking member and unlocking the second docking member 2. This is achieved by setting independent elastic locking structures at both ends of the locking mechanism 3 and cooperating with two rotatable unlocking members. It can simultaneously achieve bidirectional independent mechanical locking and unlocking of the connecting rods at both ends, with a stable and reliable locking state. It can simultaneously restrict axial movement and circumferential relative rotation, adapting to the assembly needs of rod trusses in different scenarios. During the docking process, only axial insertion of the rod is required to automatically complete the locking, without any additional operation. When unlocking, only a circumferential torque of a set threshold needs to be applied to the unlocking part to complete the unlocking. The operation is simple and the assembly and disassembly efficiency is high. It can meet the rapid assembly needs of large ground trusses and also adapt to the on-orbit construction needs of space trusses in aerospace scenarios. The structure has strong versatility and can effectively reduce the overall cost of truss construction, providing hardware support for the collaborative development of the space-ground integrated technology system.

[0023] In a preferred embodiment, the locking mechanism 3 includes a sleeve 31 extending axially. The two ends of the inner wall of the sleeve 31 are a first locking position and a second locking position, respectively. The first locking position has a plurality of first mounting grooves circumferentially arranged. Each first elastic locking member 32 is respectively disposed in its corresponding first mounting groove and can slide radially along the sleeve 31. A first limiting block 34 is provided at the opening of the first mounting groove. A first limiting groove 327 is provided on the side of the first elastic locking member 32 facing the opening of the first mounting groove. The first limiting groove 327 cooperates with the first limiting block 34 to limit... The first elastic locking member 32 is radially slidable. The second locking station has multiple second mounting slots circumferentially arranged, with each second elastic locking member positioned within its corresponding second mounting slot and capable of radial sliding along the housing 31. A second limiting block is positioned at the opening of each second mounting slot, and a second limiting groove is positioned on the side of each second elastic locking member facing the opening of the second mounting slot. The second limiting block and the second limiting groove cooperate to restrict the radial sliding position of the second elastic locking member. The housing 31 provides a stable framework for the entire locking mechanism 3, clearly defining the two locking stations. The first and second mounting slots provide mounting positions for the first and second elastic locking members 32 and 32, respectively, allowing them to slide radially to achieve locking and unlocking actions. The precise cooperation of the limiting block and the limiting groove precisely limits the sliding range of the elastic locking member, ensuring the accuracy and reliability of the locking and unlocking actions and preventing excessive sliding of the elastic locking member that could lead to connection failure.

[0024] In a preferred embodiment, the first elastic locking member 32 includes a first toothed plate 321 and a plurality of first springs 322. One end of the first spring 322 is connected to the bottom plate of the first mounting groove, and the other end is connected to the back of the first toothed plate 321. The first locking member 11 includes a second toothed plate 111 and a plurality of first countersunk screws 112. The second toothed plate 111 is fixedly connected to the outer periphery of the first mating member 1 by the plurality of first countersunk screws 112. The first toothed plate 321 is provided with a first wedge-shaped locking tooth on the side facing the first mating member 1, and the second toothed plate 111 is also provided with a matching second wedge-shaped locking tooth on the side facing the first elastic locking member 32. Under the elastic force of the first spring 322, the first wedge-shaped locking tooth and the second wedge-shaped locking tooth engage to restrict the first mating member 1 and the sleeve 31 from moving away from each other and from rotating relative to each other in the circumferential direction. The second elastic locking component includes a third toothed plate and multiple second springs. One end of each second spring is connected to the bottom plate of the second mounting groove, and the other end is connected to the back of the third toothed plate. The second locking component also includes a fourth toothed plate and multiple second countersunk screws. The fourth toothed plate is fixedly connected to the outer periphery of the second mating member 2 by the multiple second countersunk screws. A third wedge-shaped locking tooth is provided on the side of the third toothed plate facing the second mating member 2, and a matching fourth wedge-shaped locking tooth is also provided on the side of the fourth toothed plate facing the second elastic locking component. Under the elastic force of the second springs, the third and fourth wedge-shaped locking teeth engage to restrict the second mating member 2 and the housing 31 from moving away from each other and to restrict circumferential relative rotation. The combination of springs and toothed plates utilizes the elastic force of the springs to tightly engage the wedge-shaped locking teeth, effectively achieving axial and circumferential locking between the mating member and the housing 31. This design is simple and reliable. Through the mutual cooperation of the wedge-shaped locking teeth, it can withstand large axial and circumferential forces, ensuring the stability of the connection. Countersunk screws are used to fix the toothed plate, making the structure more robust, and the countersunk design prevents the screw head from protruding and affecting the smoothness of the connection.

[0025] In a preferred embodiment, the side of the first wedge-shaped locking tooth furthest from the center of the housing 31 is a first inclined surface, and the side closest to the center of the housing 31 is a first vertical surface. The side of the second wedge-shaped locking tooth closest to the center of the housing 31 is a second inclined surface that matches the first inclined surface, and the side furthest from the center of the housing 31 is a second vertical surface. When the first docking member 1 is inserted axially into the first locking position, the second inclined surface on the first docking member 1, in conjunction with the first inclined surface, pushes the first toothed plate 321 radially outward to compress the first spring 322. Until the first docking member 1 is fully inserted, the first wedge-shaped locking tooth, under the elastic force of the first spring 322, engages in the gap of the second wedge-shaped locking tooth. The first vertical surface and the second vertical surface abut against each other, restricting the first docking member 1 from axially outward. Similarly, for the pull-out and circumferential relative rotation, the side of the third wedge-shaped locking tooth away from the center of the housing 31 is the third inclined surface, and the side near the center of the housing 31 is the third vertical surface. The side of the fourth wedge-shaped locking tooth near the center of the housing 31 is the fourth inclined surface that matches the third inclined surface, and the side away from the center of the housing 31 is the fourth vertical surface. When the second docking piece 2 is inserted axially into the second locking position, the fourth inclined surface on the second docking piece 2, in conjunction with the third inclined surface, pushes the third toothed plate radially outward to compress the second spring until the second docking piece 2 is fully inserted. Under the elastic force of the second spring, the third wedge-shaped locking tooth engages in the gap of the fourth wedge-shaped locking tooth, and the third vertical surface and the fourth vertical surface fit together tightly, restricting the axial pull-out and circumferential relative rotation of the second docking piece 2. The wedge-shaped inclined surface design can automatically push the toothed plate outward to retract when the docking piece is inserted, and automatically engage after insertion, without additional manual operation, realizing convenient assembly of insertion and locking. The vertical contact and tightness can effectively prevent the mating parts from being pulled outward and rotated circumferentially after locking, ensuring the stability of the locking state and preventing loosening and slippage.

[0026] In a preferred embodiment, the first elastic locking member 32 further includes a first slider 323, a plurality of first sliding posts 324, and a plurality of first retaining rings 325. A plurality of first sliding grooves are provided on the sidewall of the first mounting groove. The first slider 323 is fixedly connected to one end of the first toothed plate 321. A plurality of first fixing grooves are provided on both sides of the first slider 323. First retaining ring 325 mounting grooves are provided at both ends of the first fixing grooves. The first retaining rings 325 are correspondingly installed in the first retaining ring 325 mounting grooves to fix the first sliding posts 324 to the first fixing grooves. The portion of the first sliding post 324 protruding from the first fixing groove cooperates with the first sliding groove. The sliding connection includes a second elastic locking element, a second slider, multiple second sliding pillars, and multiple second retaining rings. Multiple second sliding grooves are provided on the side wall of the second mounting groove. The second slider is fixedly connected to one end of the second toothed plate 111. Multiple second fixing grooves are provided on both sides of the second slider. Second retaining ring mounting grooves are provided at both ends of the second fixing grooves. The second retaining rings are correspondingly installed in the second retaining ring mounting grooves to fix the second sliding pillars in the second fixing grooves. The portion of the second sliding pillar protruding from the second fixing groove slidably connects with the second sliding groove. The arrangement of the slider, sliding pillars, and retaining rings provides a smoother and more stable guiding structure for the radial sliding of the elastic locking element. The cooperation between the sliding pillars and sliding grooves ensures the linearity and stability of the elastic locking element during radial movement, while the retaining rings firmly fix the sliding pillars to the slider, preventing them from falling off. This structure allows the elastic locking element to move smoothly when subjected to unlocking force, improving the reliability and consistency of locking and unlocking actions.

[0027] In a preferred embodiment, the locking mechanism 3 further includes a first rigid cover plate 33 and a second rigid cover plate, which are respectively fixedly connected to both ends of the housing 31. The first unlocking element 4 is a first rotating end cap 41, and the second unlocking element 5 is a second rotating end cap. Multiple first magnetic elements 43 are provided on the side of the first rotating end cap 41 near the first rigid cover plate 33, and multiple second magnetic elements are provided on the side of the second rotating end cap near the second rigid cover plate. The first magnetic elements 43 are connected to the first rigid cover plate. The magnetic attraction of component 33 achieves damped locking between the first rotating end cap 41 and the housing 31, while the magnetic attraction of the second magnetic component and the second rigid cover plate achieves damped locking between the second rotating end cap and the housing 31. This damped locking method ensures that during normal use, the first and second rotating end caps will not rotate arbitrarily due to slight external interference, maintaining the stability of the locked state. Furthermore, when unlocking is required, if a torque exceeding a set threshold is applied in the circumferential direction, the rotating end cap can rotate relative to the housing 31, thereby triggering the unlocking mechanism. Compared to traditional mechanical connections, magnetic connections are more convenient to install and disassemble, with a simple and efficient operation process, saving installation time and improving work efficiency. Moreover, magnetic connections simplify the structure to a certain extent, reducing complex mechanical parts, lowering the risk of failure due to excessive components, and improving the overall reliability and maintainability of the connector.

[0028] In a preferred embodiment, the first rigid cover plate 33 is a first annular plate, which is composed of multiple first arc-shaped plates, each of which is fixedly connected to the housing 31. A first mounting groove is located on the inner side of the first annular plate. The second rigid cover plate is a second annular plate, which is also composed of multiple second arc-shaped plates, each of which is fixedly connected to the housing 31. A second mounting groove is located on the inner side of the second annular plate. Using multiple arc-shaped plates to form an annular plate as the rigid cover plate facilitates manufacturing and installation. The assembled structure can be flexibly adjusted and replaced according to actual needs, reducing manufacturing difficulty and cost. Simultaneously, placing the mounting groove on the inner side of the annular plate better protects the internal elastic locking components from external environmental interference, further improving the reliability of the locking mechanism 3.

[0029] In a preferred embodiment, the first elastic locking member 32 further includes a first connecting rod 326, which is fixedly connected to the first slider 323. The second elastic locking member further includes a second connecting rod, which is fixedly connected to the second slider. A first annular guide rail 42 is provided on the side of the first rotating end cover 41 near the first rigid cover plate 33. The end of the first connecting rod 326 away from the first slider 323 is slidably connected to the first annular guide rail 42. The first annular guide rail 42 has locking positions and releasing positions spaced apart in the circumferential direction. When the first rotating end cover 41 is rotated, the first annular guide rail 42 rotates synchronously, causing the first connecting rod 326 to gradually move from the locking position to the releasing position of the first annular guide rail 42, thereby driving the first slider 323 and the first... The toothed plate 321 moves synchronously away from the first docking member 1, disengaging the first wedge-shaped locking tooth from the second wedge-shaped locking tooth. A second annular guide rail is provided on the side of the second rotating end cap near the second rigid cover plate. The end of the second connecting rod away from the second slider is slidably connected to the second annular guide rail. The second annular guide rail also has spaced locking and releasing positions in the circumferential direction. When the second rotating end cap rotates, the second annular guide rail rotates synchronously, driving the second connecting rod to gradually move from the locking position to the releasing position. This drives the second slider and the third toothed plate to move synchronously away from the second docking member 2, disengaging the third wedge-shaped locking tooth from the fourth wedge-shaped locking tooth. The cooperation between the connecting rod and the annular guide rail effectively transmits the rotation of the rotating end cap and the unlocking action of the elastic locking member. The design of the locking and releasing positions on the annular guide rail precisely controls the unlocking process of the elastic locking member, making the unlocking operation more stable and reliable. This structural design cleverly transforms rotational motion into radial movement of the elastic locking member, ensuring that all elastic locking members can move synchronously during unlocking, ensuring smooth unlocking of the docking member.

[0030] In a preferred embodiment, the first annular guide rail 42 includes sequentially connected first arc-shaped segments. The radii at both ends of the first arc-shaped segments are larger than the radius at the middle of the first arc-shaped segments, so that the ends of the first arc-shaped segments form a release position and the middle of the first arc-shaped segments form a locking position. The second annular guide rail includes sequentially connected second arc-shaped segments. The radii at both ends of the second arc-shaped segments are larger than the radius at the middle of the second arc-shaped segments, so that the ends of the second arc-shaped segments form a release position and the middle of the second arc-shaped segments form a locking position. The special arc-shaped segment radius design clearly distinguishes between the locking and release positions, enabling the first elastic locking member 32 and the second elastic locking member to accurately switch between the locked and released states when the annular guide rail rotates. This design provides clear position indication and control basis for the unlocking process, further improving the accuracy and reliability of the unlocking operation and ensuring stable switching between the connection and unlocking states.

[0031] In a preferred embodiment, the first arc segment has a smooth transition structure with a central angle of 90 degrees. Four first elastic locking elements 32 are evenly distributed around the circumference of the housing 31. Four first locking elements 11 are also evenly distributed around the circumference of the first mating member 1. Similarly, the second arc segment has a smooth transition structure with a central angle of 90 degrees. Four second elastic locking elements are also evenly distributed around the circumference of the housing 31. Four second locking elements are also evenly distributed around the circumference of the second mating member 2. The smooth transition of the arc segment allows the connecting rod to move more smoothly on the annular guide rail, reducing jamming and ensuring the stability of the unlocking process. The arrangement and even distribution of the elastic locking elements and their number ensure uniform force distribution around the mating member, improving the stability and reliability of the connection. The 90-degree central angle design allows the rotating end cap to switch between locked and unlocked states simply by rotating it a certain angle, making operation convenient and quick while also ensuring the compactness and rationality of the structure.

[0032] Example 2 This embodiment also provides a method for using the bidirectional locking spatial rod connector as described in Embodiment 1 above, including the following steps: I. Preparations before connection: Component integrity check: Conduct a comprehensive and detailed inspection of the first docking part 1, the second docking part 2, the locking mechanism 3, the first unlocking part 4 (first rotating end cap 41), and the second unlocking part 5 (second rotating end cap). Check each component for physical damage, such as cracks or deformation; confirm that all parts are complete, especially key components such as the first locking part 11, the second locking part, the first elastic locking part 32, the second elastic locking part, the first magnetic part 43, and the second magnetic part, ensuring that they are functional and can work properly.

[0033] Connection Environment Preparation: Whether used for large-scale ground-based truss construction or on-orbit construction of space trusses in the aerospace field, the connection points must be clean and free of dust, debris, or other foreign objects that may affect connection quality. In the aerospace environment, special consideration must be given to the impact of unique space conditions on components, such as space radiation and extreme temperature changes. Protective measures should be taken as necessary to ensure that the performance of each component of the connector is not affected.

[0034] II. Connection Operation Steps: (a) Connection of the first mating part 1: Alignment and Insertion: Align the end of the first mating member 1 with the first locking member 11 precisely with the first locking position of the locking mechanism 3. During the alignment process, ensure accurate positioning to facilitate smooth subsequent insertion.

[0035] Automatic locking: The first docking piece 1 is slowly and smoothly inserted into the first locking position along the axial direction. During this process, the second inclined surface of the second wedge-shaped tooth on the first docking piece 1 cooperates with the first inclined surface of the first toothed plate 321 of the first elastic locking piece 32, pushing the first toothed plate 321 to move radially outward along the sleeve 31, thereby compressing the first spring 322. When the first docking piece 1 is fully inserted, the elastic force of the first spring 322 causes the first wedge-shaped tooth to engage in the gap of the second wedge-shaped tooth. At this time, the first vertical surface and the second vertical surface are tightly fitted together, thereby realizing the mechanical locking of the first docking piece 1 and the locking mechanism 3 in the axial and circumferential directions, effectively restricting the outward axial pull-out of the first docking piece 1 and its relative circumferential rotation.

[0036] Guiding and Limiting Protection: In the above process, the guiding structure composed of the first slider 323, the first sliding post 324, and the first retaining spring 325 of the first elastic locking member 32 plays an important role. The first sliding post 324 cooperates with the first sliding groove on the side wall of the first mounting groove to ensure the linearity and stability of the radial sliding of the first elastic locking member 32; the first retaining spring 325 firmly fixes the first sliding post 324 in the first fixing grooves on both sides of the first slider 323 to prevent it from falling off. At the same time, the first limiting block 34 precisely cooperates with the first limiting groove 327 on the first elastic locking member 32 to strictly limit the radial sliding range of the first elastic locking member 32, ensuring accurate locking action and improving the reliability of the connection.

[0037] (ii) Connection of the second mating part 2: Repeat alignment: Just as with connecting the first docking part 1, accurately align the end of the second docking part 2 with the second locking part with the second locking position of the locking mechanism 3.

[0038] Locking is achieved by smoothly inserting the second docking piece 2 axially. The fourth inclined surface of the fourth wedge-shaped locking tooth on the second docking piece 2 interacts with the third inclined surface of the third toothed plate of the second elastic locking member, pushing the third toothed plate to compress the second spring radially outward. When the second docking piece 2 is fully inserted, the third wedge-shaped locking tooth engages with the gap of the fourth wedge-shaped locking tooth under the elastic force of the second spring, and the third vertical surface and the fourth vertical surface fit together tightly, completing the axial and circumferential mechanical locking of the second docking piece 2 and the locking mechanism 3, restricting the outward axial pull-out and circumferential relative rotation of the second docking piece 2.

[0039] Stable structural support: The second slider, second sliding post, and second retaining spring of the second elastic locking member also constitute a stable guiding structure. The second sliding post slides in conjunction with the second sliding groove on the side wall of the second mounting groove, ensuring the stability of the movement of the second elastic locking member; the second retaining spring fixes the second sliding post in the second fixing groove of the second slider, preventing it from disengaging. The cooperation between the second limiting block and the second limiting groove further ensures the accuracy and reliability of the radial sliding of the second elastic locking member, making the entire connection process stable and reliable.

[0040] III. Lockout status check after connection: After connection, the locking status of the connectors needs to be checked. Gently shake the first mating part 1 and the second mating part 2 respectively to feel the stability of the connection. Under normal circumstances, due to the elastic locking structure at both ends of the locking mechanism 3, there should be no obvious axial movement or circumferential rotation. If the connection is found to be loose or unstable, stop operation immediately and carefully check the connection between the mating parts and the locking mechanism 3 to see if any parts are not installed properly or are damaged.

[0041] IV. Unlocking Procedure: (a) Unlocking the first docking component 1: Applying torque: When it is necessary to unlock the first docking part 1, apply a circumferential torque exceeding the set threshold to the first rotating end cover 41.

[0042] Structural linkage unlocking: The first rotating end cap 41 rotates relative to the locking mechanism 3 in the circumferential direction, causing the first annular guide rail 42 to rotate synchronously. Due to the special radius design of the locking and releasing positions of the first annular guide rail 42 (the radius at both ends is larger than the radius in the middle), during rotation, the first annular guide rail 42 drives the first connecting rod 326, which is slidably connected to it, to gradually move from the locking position to the releasing position. The movement of the first connecting rod 326 drives the first slider 323 and the first toothed plate 321 fixed thereto to move synchronously in a radial direction away from the first docking member 1, thereby disengaging the first wedge-shaped locking tooth from the second wedge-shaped locking tooth and unlocking the first docking member 1.

[0043] Ease of operation and stability: The smooth transition structure of the first arc segment and the 90-degree central angle design make it easy and quick to rotate the first rotating end cover 41, while ensuring the stability of the unlocking process, reducing jamming, and ensuring that the unlocking action is completed smoothly.

[0044] (ii) Unlocking the second docking component 2: The same operation applies: when unlocking the second docking piece 2, a circumferential torque exceeding the set threshold is applied to the second rotating end cap.

[0045] Unlocking complete: The second rotating end cap drives the second annular guide rail to rotate, causing the second connecting rod to move from the locked position to the released position of the second annular guide rail. The second connecting rod drives the second slider and the third toothed plate to move synchronously in a radial direction away from the second docking piece 2, releasing the engagement between the third wedge-shaped locking tooth and the fourth wedge-shaped locking tooth, thus unlocking the second docking piece 2.

[0046] Performance consistency: The second annular guide rail also has a smoothly transitioning second arc segment with a central angle of 90 degrees. This ensures that unlocking the second docking piece 2 has the same convenience and smoothness as unlocking the first docking piece 1, ensuring that the entire unlocking process is efficient and stable.

[0047] V. Separation and Storage Operations Component Separation: After unlocking, carefully and gently pull out the first mating part 1 and the second mating part 2 along the axial direction to separate them from the locking mechanism 3. During the pulling process, care should be taken to avoid causing collisions, scratches, or other damage to the connector components.

[0048] Proper Storage: Store the separated components, including the first docking part 1, the second docking part 2, the locking mechanism 3, the first rotating end cap 41, and the second rotating end cap, properly. In aerospace scenarios, adhere to space debris disposal regulations to ensure the components do not contaminate the space environment. On Earth, place the components in a suitable storage environment to prevent moisture and rust, ensuring their performance remains unaffected and facilitating future use. Regularly inspect the stored components to ensure they are in good condition.

[0049] Throughout the entire usage process, whether on the ground or in aerospace scenarios, operators must strictly follow the above procedures to ensure the safe and reliable use of bidirectional locking space rod connectors. Furthermore, regular maintenance of the connectors, and timely detection and replacement of worn or damaged parts, will help extend their service life and ensure they maintain optimal performance in various scenarios.

[0050] Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this invention. Furthermore, those skilled in the art will recognize that, based on the ideas of this invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this invention.

Claims

1. A bidirectional locking spatial rod connector, characterized in that: include: The first docking component has a plurality of first locking components at its connecting end; The second docking component has a plurality of second locking components at its connecting end; A locking mechanism is provided at both ends of the locking mechanism, namely a first locking station and a second locking station. The first locking station is provided with a plurality of first elastic locking elements, and the second locking station is provided with a plurality of second elastic locking elements. One first elastic locking element is provided in correspondence with one first locking element. When the first docking member is inserted into the first locking station, the first elastic locking element and the corresponding first locking element engage and lock with each other to achieve axial and circumferential mechanical locking between the first docking member and the locking mechanism. One second elastic locking element is provided in correspondence with one second locking element. When the second docking member is inserted into the second locking station, the second elastic locking element and the corresponding second locking element engage and lock with each other to achieve axial and circumferential mechanical locking between the second docking member and the locking mechanism. The first unlocking component is sleeved on the outside of the first docking component and is damped and locked at one end of the locking mechanism with the first locking position. When the first unlocking component is subjected to a torque exceeding a set threshold in the circumferential direction, it can rotate relative to the locking mechanism. When rotating, it can push all the first elastic locking components to move synchronously in the radial direction away from the first docking component, thereby releasing the engagement state between the first elastic locking component and the corresponding first locking component and unlocking the first docking component. as well as The second unlocking component is sleeved on the outside of the second docking component and damped and locked at one end of the locking mechanism with the second locking position. When the second unlocking component is subjected to a torque exceeding a set threshold in the circumferential direction, it can rotate relative to the locking mechanism. When rotating, it can push all the second elastic locking components to move synchronously in the radial direction away from the second docking component, thereby releasing the engagement state between the second elastic locking component and the corresponding second locking component and unlocking the second docking component.

2. The bidirectional locking spatial rod connector according to claim 1, characterized in that: The locking mechanism includes a sleeve extending axially. The inner wall of the sleeve has a first locking position and a second locking position at its two ends. The first locking position has a plurality of first mounting grooves circumferentially arranged. Each first elastic locking member is disposed within its corresponding first mounting groove and can slide radially along the sleeve. A first limiting block is provided at the opening of the first mounting groove. A first limiting groove is provided on the side of the first elastic locking member facing the opening of the first mounting groove. The first limiting groove cooperates with the first limiting block to restrict the radial sliding position of the first elastic locking member. The second locking position has a plurality of second mounting grooves circumferentially arranged. Each second elastic locking member is disposed within its corresponding second mounting groove and can slide radially along the sleeve. A second limiting block is provided at the opening of the second mounting groove. A second limiting groove is provided on the side of the second elastic locking member facing the opening of the second mounting groove. The second limiting block cooperates with the second limiting groove to restrict the radial sliding position of the second elastic locking member.

3. The bidirectional locking spatial rod connector according to claim 2, characterized in that: The first elastic locking member includes a first toothed plate and a plurality of first springs. One end of the first spring is connected to the bottom plate of the first mounting groove, and the other end is connected to the back of the first toothed plate. The first locking member includes a second toothed plate and a plurality of first countersunk screws. The second toothed plate is fixedly connected to the outer periphery of the first mating member by the plurality of first countersunk screws. The first toothed plate is provided with a first wedge-shaped locking tooth on the side facing the first mating member, and the second toothed plate is also provided with a matching second wedge-shaped locking tooth on the side facing the first elastic locking member. Under the elastic force of the first spring, the first wedge-shaped locking tooth and the second wedge-shaped locking tooth engage to restrict the first mating member and the sleeve from moving away from each other and rotating relative to each other in the circumferential direction. The second elastic locking member includes a third toothed plate and a plurality of second springs. One end of the second spring is connected to the bottom plate of the second mounting groove, and the other end is connected to the back of the third toothed plate. The second locking member includes a fourth toothed plate and a plurality of second countersunk screws. The fourth toothed plate is fixedly connected to the outer periphery of the second mating member by the plurality of second countersunk screws. The third toothed plate is provided with a third wedge-shaped locking tooth on the side facing the second mating member, and the fourth toothed plate is also provided with a matching fourth wedge-shaped locking tooth on the side facing the second elastic locking member. Under the elastic force of the second spring, the third wedge-shaped locking tooth and the fourth wedge-shaped locking tooth engage to restrict the second mating member and the sleeve from moving away from each other and to restrict circumferential relative rotation.

4. The bidirectional locking spatial rod connector according to claim 3, characterized in that: The first elastic locking member further includes a first slider, a plurality of first sliding pillars, and a plurality of first retaining rings. A plurality of first sliding grooves are provided on the side wall of the first mounting groove. The first slider is fixedly connected to one end of the first toothed plate. A plurality of first fixing grooves are provided on both sides of the first slider. A first retaining ring mounting groove is provided at both ends of the first fixing groove. The first retaining ring is correspondingly installed in the first retaining ring mounting groove to fix the first sliding pillar in the first fixing groove. The part of the first sliding pillar protruding from the first fixing groove is slidably connected with the first sliding groove. The second elastic locking member further includes a second slider, a plurality of second sliding pillars, and a plurality of second retaining rings. A plurality of second sliding grooves are provided on the side wall of the second mounting groove. The second slider is fixedly connected to one end of the second toothed plate. A plurality of second fixing grooves are provided on both sides of the second slider. A second retaining ring mounting groove is provided at both ends of the second fixing groove. The second retaining ring is correspondingly installed in the second retaining ring mounting groove to fix the second sliding pillar in the second fixing groove. The part of the second sliding pillar protruding from the second fixing groove is slidably connected with the second sliding groove.

5. The bidirectional locking spatial rod connector according to claim 4, characterized in that: The locking mechanism further includes a first rigid cover plate and a second rigid cover plate, which are respectively fixedly connected to both ends of the housing. The first unlocking component is a first rotating end cover, and the second unlocking component is a second rotating end cover. A plurality of first magnetic components are provided on the side of the first rotating end cover near the first rigid cover plate, and a plurality of second magnetic components are provided on the side of the second rotating end cover near the second rigid cover plate. The first magnetic components magnetically attract the first rigid cover plate to achieve damped locking of the first rotating end cover and the housing, and the second magnetic components magnetically attract the second rigid cover plate to achieve damped locking of the second rotating end cover and the housing.

6. The bidirectional locking spatial rod connector according to claim 5, characterized in that: The first rigid cover plate is a first annular plate, which is composed of multiple first arc-shaped plates, and each of the first arc-shaped plates is fixedly connected to the housing. The first mounting groove is located on the inner side of the first annular plate. The second rigid cover plate is a second annular plate, which is composed of multiple second arc-shaped plates, and each of the second arc-shaped plates is fixedly connected to the housing. The second mounting groove is located on the inner side of the second annular plate.

7. The bidirectional locking spatial rod connector according to claim 6, characterized in that: The first elastic locking member further includes a first connecting rod, which is fixedly connected to the first slider. The second elastic locking member further includes a second connecting rod, which is fixedly connected to the second slider. A first annular guide rail is provided on the side of the first rotating end cap near the first rigid cover plate. The end of the first connecting rod away from the first slider is slidably connected to the first annular guide rail. The first annular guide rail has locking positions and releasing positions spaced apart in the circumferential direction. When the first rotating end cap is rotated, the first annular guide rail rotates synchronously, causing the first connecting rod to gradually move from the locking position to the releasing position of the first annular guide rail, thereby driving the first slider and the first toothed plate to move synchronously. The second rotating end cap moves away from the first docking member, causing the first wedge-shaped locking tooth to disengage from the second wedge-shaped locking tooth. A second annular guide rail is provided on the side of the second rotating end cap near the second rigid cover plate. The end of the second connecting rod away from the second slider is slidably connected to the second annular guide rail. The second annular guide rail also has a locking position and a releasing position spaced apart in the circumferential direction. When the second rotating end cap is rotated, the second annular guide rail rotates synchronously, causing the second connecting rod to gradually move from the locking position to the releasing position of the second annular guide rail. This drives the second slider and the third toothed plate to move synchronously away from the second docking member, causing the third wedge-shaped locking tooth to disengage from the fourth wedge-shaped locking tooth.

8. The bidirectional locking spatial rod connector according to claim 7, characterized in that: The first annular guide rail includes a first arc-shaped segment connected in sequence. The radii at both ends of the first arc-shaped segment are greater than the radius at the middle of the first arc-shaped segment, so that the release position is formed at both ends of the first arc-shaped segment and the locking position is formed at the middle of the first arc-shaped segment. The second annular guide rail includes a second arc-shaped segment connected in sequence. The radii at both ends of the second arc-shaped segment are greater than the radius at the middle of the second arc-shaped segment, so that the release position is formed at both ends of the second arc-shaped segment and the locking position is formed at the middle of the second arc-shaped segment.

9. The bidirectional locking spatial rod connector according to claim 8, characterized in that: The first arc segment has a smooth transition structure, the central angle of the first arc segment is 90 degrees, the number of the first elastic locking members is four, the four first elastic locking members are evenly arranged in the circumference of the housing, the number of the first locking members is four, the four first locking members are evenly arranged in the circumference of the first mating member, the second arc segment has a smooth transition structure, the central angle of the second arc segment is 90 degrees, the number of the second elastic locking members is four, the four second elastic locking members are evenly arranged in the circumference of the housing, the number of the second locking members is four, the four second locking members are evenly arranged in the circumference of the second mating member.

10. A method of using a bidirectional locking spatial rod connector as described in any one of claims 1 to 9, characterized in that: Includes the following steps: The docking and locking steps are as follows: The first docking member is inserted axially into the first locking position of the locking mechanism. Under the action of radial elastic force, each of the first elastic locking members automatically engages and locks with the corresponding first locking member, thereby achieving axial and circumferential locking between the first docking member and the locking mechanism; The second docking member is inserted axially into the second locking position of the locking mechanism. Under the action of radial elastic force, each of the second elastic locking members automatically engages and locks with the corresponding second locking member, thereby achieving axial and circumferential locking between the second docking member and the locking mechanism. Unlocking steps: When it is necessary to unlock the first docking member, apply a circumferential torque exceeding a set threshold to the first unlocking member, so that the first unlocking member overcomes the damping lock and rotates relative to the locking mechanism. During the rotation, the first unlocking member pushes all the first elastic locking members to move outward radially in sync, so that each of the first elastic locking members disengages from the corresponding first locking member. Then, the first docking member is pulled out of the first locking position axially to unlock the first docking member. When it is necessary to unlock the second docking member, a circumferential torque exceeding a set threshold is applied to the second unlocking member, causing the second unlocking member to overcome the damping lock and rotate relative to the locking mechanism. During the rotation, the second unlocking member pushes all the second elastic locking members to move outward radially in sync, so that each of the second elastic locking members disengages from its corresponding second locking member. Then, the second docking member is pulled out of the second locking position axially, thereby unlocking the second docking member.

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