Limiting locking device and assembling system

Abstract

The embodiment of the invention provides a limiting and locking device and an assembly system, and relates to the technical field of aerospace. According to the limiting locking device, a base is provided with a communicating channel; the limiting mechanism comprises a clamping piece and a limiting piece, and the clamping piece and the limiting piece are both arranged on the base; the base is configured to drive the limiting piece and the clamping piece to rotate relative to the to-be-connected pieces under the action of external force when the two to-be-connected pieces are inserted into the communicating channel, so that the clamping piece is clamped with the inner walls of the to-be-connected pieces, the limiting piece abuts against the outer walls of the to-be-connected pieces, and the to-be-connected pieces are fixed to the base. The two pieces to be connected are inserted into the communicating channel of the base, the base is rotated through external force, the clamping piece and the limiting piece are used for locking, displacement of the pieces to be connected in the axial direction, the radial direction and the vertical direction can be limited, displacement or shaking is avoided, a special operation tool is not needed, and the special tool can be prevented from being limited by space; butt joint and fixing of two pieces to be connected can be rapidly completed, and the assembling efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of aerospace technology, and in particular to a limiting and locking device and an assembly system. BACKGROUND

[0002] In the field of aerospace engineering, the connection and assembly of parts are related to the reliability, maintenance convenience and operating cost of the spacecraft. In order to adapt to the special needs of the aerospace scene, modular connection methods are widely used. By modularly integrating and connecting various parts, not only can the maintenance cost of the equipment be effectively reduced, but also the reuse and iterative upgrading of precision parts can be realized, so that the overall structure after assembly is more in line with the requirements of performance and adaptability of the space mission.

[0003] In the current modular connection method, the operating tool connects the parts by screwing the bolts and nuts, ensuring the structural strength between the parts and meeting the basic needs of the spacecraft for connection stability.

[0004] However, relying on special tools to connect parts through bolts and nuts, the assembly process is complicated, resulting in low assembly efficiency, which is difficult to adapt to the narrow operating space in the spacecraft cabin, and cannot meet the needs of rapid assembly of parts. SUMMARY

[0005] The embodiments of the present application provide a limiting and locking device and an assembly system, which can limit the axial, radial and vertical displacement of the parts to be connected by inserting the two parts to be connected into the communication channel of the base, rotating the base by external force, and locking by using the clamping piece and the limiting piece, avoiding the occurrence of shifting or shaking, without the need for special operating tools, and can also avoid the space limitation of special tools, and can quickly complete the docking and fixing of the two parts to be connected, improving the assembly efficiency.

[0006] In a first aspect, the embodiments of the present application provide a limiting and locking device, comprising:

[0007] a base, the base having a communication channel;

[0008] a limiting mechanism, the limiting mechanism comprising a clamping piece and a limiting piece, both the clamping piece and the limiting piece being arranged on the base;

[0009] The base is configured to, when the two parts to be connected are inserted into the communication channel, drive the limiting piece and the clamping piece to rotate relative to the parts to be connected under the action of external force, so that the clamping piece is clamped with the inner wall of the part to be connected, and the limiting piece is in abutment with the outer wall of the part to be connected, so as to fix the part to be connected on the base.

[0010] In the above limiting and locking device, optionally, the number of clamping pieces and limiting pieces is at least two, the clamping piece is clamped with the corresponding part to be connected, and the limiting piece is in abutment with the corresponding part to be connected.

[0011] In the above-mentioned limiting and locking device, optionally, the clamping piece comprises elastic arms and a clamping boss, at least two elastic arms are arranged on the base in a circumferential direction, and the clamping boss is arranged on an end of the elastic arm, and the clamping boss is used for clamping with the inner wall of the to-be-connected piece.

[0012] In the above-mentioned limiting and locking device, optionally, the limiting and locking device further comprises a support beam and a reinforcing beam, the support beam is arranged on the base, the reinforcing beam is arranged on the support beam, at least two elastic arms are arranged on the support beam in an extension direction of the reinforcing beam, one end of the first elastic arm is connected with one end of the reinforcing beam, one end of the second elastic arm is connected with the other end of the reinforcing beam, and the other end of the first elastic arm and the other end of the second elastic arm are both provided with the clamping boss.

[0013] In the above-mentioned limiting and locking device, optionally, the elastic arm is in an arc structure, the center of the arc structure is coincident with the center of the base, the other end of the first elastic arm extends towards one end of the second elastic arm, and the other end of the second elastic arm extends towards one end of the first elastic arm.

[0014] In the above-mentioned limiting and locking device, optionally, the limiting piece comprises limiting bosses, the number of the limiting bosses is at least two, the at least two limiting bosses are arranged in a circumferential direction of the base, and the limiting bosses are used for abutting against the corresponding to-be-connected piece.

[0015] In the above-mentioned limiting and locking device, optionally, the limiting and locking device further comprises a cover plate, the cover plate is arranged on the base, one end of the limiting boss is connected with the base, and the other end of the limiting boss is connected with the cover plate.

[0016] In the second aspect, another embodiment of the present application provides an assembly system, comprising at least two to-be-connected pieces and the limiting and locking device in any one of the above-mentioned embodiments.

[0017] In the above-mentioned assembly system, optionally, the to-be-connected piece comprises a connecting rod and an arc-shaped connecting plate, the end of the connecting rod is connected with the corresponding arc-shaped connecting plate, at least two arc-shaped connecting plates are moved towards each other under the action of an external force and are inserted into the communication channel of the limiting and locking device, the inner wall of the arc-shaped connecting plate is provided with a plurality of clamping grooves, the plurality of clamping grooves are arranged in an extension direction of the arc-shaped connecting plate, and the clamping piece of the limiting and locking device is clamped with the clamping grooves.

[0018] In the above-mentioned assembly system, optionally, the outer wall of the arc-shaped connecting plate is provided with a limiting sliding groove, the limiting piece of the limiting and locking device is slidably arranged on the limiting sliding groove, and the limiting piece abuts against the limiting sliding groove when the clamping piece is clamped with the clamping grooves.

[0019] The embodiment of the application provides a limiting and locking device and an assembling system, two pieces to be connected are inserted into the communicating channels of the base, the pieces to be connected are positioned, then the base is rotated by external force, and locking is performed by using the clamping pieces and the limiting pieces, so that the positioning, alignment, screwing, locking and other cumbersome steps required by traditional bolt and nut connection are replaced, special operation tools are not needed, special tools can be avoided to be limited by space, the butt joint and fixing of the two pieces to be connected can be quickly completed, and the assembling efficiency is further improved.

[0020] Moreover, the clamping pieces and the inner walls of the pieces to be connected are clamped, the limiting pieces and the outer walls of the pieces to be connected are abutted, and the communicating channels limit the pieces to be connected, so that the axial, radial and vertical displacement of the pieces to be connected can be comprehensively limited, the pieces to be connected can be prevented from moving or shaking in the use process, and the stability of the connecting structure is further improved. The clamping pieces and the inner walls of the pieces to be connected are rigidly clamped, the axial tension can be borne, the limiting pieces and the outer walls are abutted to apply radial pressure and eliminate the gap, and the double synergistic effect can effectively resist the vibration, impact, temperature difference and other extreme working conditions in the space mission, so that the connection is prevented from loosening, and the structural stability and reliability of the pieces to be connected after connection are ensured.

[0021] Compared with traditional bolt and nut connection, the disassembly process of the device is simple and convenient, external force needs to be reversely applied to drive the base to rotate, the clamping pieces can be separated from the clamping grooves of the pieces to be connected, the limiting pieces can be loosened from the abutment of the outer walls of the pieces to be connected, the pieces to be connected can be quickly disassembled, the device does not need to be disassembled as a whole, and the maintenance cost and operation and maintenance difficulty are significantly reduced. BRIEF DESCRIPTION OF DRAWINGS

[0022] The drawings incorporated into the specification and constituting a part of the specification show embodiments consistent with the application and, together with the specification, serve to explain the principles of the application.

[0023] Figure 1 A structural schematic view of the limiting and locking device provided by the application is shown in the figure;

[0024] Figure 2 A structural schematic view of the limiting mechanism of the limiting and locking device provided by the application arranged on the base is shown in the figure;

[0025] Figure 3 A structural schematic view of the pieces to be connected of the limiting and locking device provided by the application inserted into the base is shown in the figure;

[0026] Figure 4 A structural schematic view of the pieces to be connected of the limiting and locking device provided by the application inserted into the base and clamped with the clamping pieces is shown in the figure;

[0027] Figure 5 A structural schematic view of the base of the limiting and locking device provided by the application rotated and the limiting pieces abutting against the pieces to be connected is shown in the figure;

[0028] Figure 6 The structural schematic diagram of the assembly system provided in the present application is shown.

[0029] Explanation of reference signs:

[0030] 100, base; 110, communication channel;

[0031] 200, limiting mechanism; 210, clamping piece; 211, elastic arm; 212, clamping boss; 220, limiting piece; 221, limiting boss;

[0032] 310, support beam; 320, reinforcing beam; 330, cover plate;

[0033] 400, to-be-connected piece; 410, connecting rod; 420, arc-shaped connecting plate; 421, clamping groove.

[0034] The specific embodiments of the present application have been shown by the above-mentioned drawings, and will be described in more detail hereinafter. These drawings and textual descriptions are not intended to limit the scope of the concept of the present application by any means, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0035] In order to make the purposes, embodiments and advantages of the present application more clear, the exemplary embodiments of the present application will be described clearly and completely below by combining the drawings in the exemplary embodiments of the present application. Obviously, the described exemplary embodiments are only a part of the embodiments of the present application, but not all the embodiments.

[0036] It should be noted that the brief explanations of the terms in the present application are only for the convenience of understanding the subsequently described embodiments, but are not intended to limit the embodiments of the present application. Unless otherwise specified, these terms should be understood according to their ordinary and general meanings.

[0037] In addition, the terms “include” and “have” and any variations thereof are intended to cover but not exclusive inclusion, for example, the products or devices including a series of components do not have to be limited to the clearly listed components, but can include other components that are not clearly listed or inherent to these products or devices.

[0038] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms “center”, “upper”, “lower”, “front”, “rear”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inner”, “outer” and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and are not intended to indicate or imply that the indicated devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0039] The terms "first", "second", "third", etc. are used only for descriptive purposes and are not to be construed as indicating or implying relative importance or an ordered ranking of the indicated technical features. Thus, features defined with "first", "second" can explicitly or implicitly include one or more of such features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specified and limited.

[0040] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0041] In the field of aerospace, the modular connection method can not only effectively simplify the assembly process, significantly reduce the maintenance cost and operation and maintenance difficulty of the spacecraft, but also realize the reuse, individual repair and technical iteration and upgrading of the precision components, so that the overall structure after assembly can better match the strict requirements of different space missions on equipment performance and mission adaptability, and provide important support for the large-scale development and technological innovation of aerospace engineering.

[0042] In the existing connection method, bolts and nuts are twisted by operating special tools to complete the fixed connection between components. This connection method can guarantee the structural strength and connection stability between components due to its simple structure, controllable connection strength, and high technical maturity, and can meet the basic requirements of the spacecraft for connection reliability to a certain extent, so it is widely used in the modular assembly scene of various spacecraft. Or connect each component by welding and riveting, although it can provide high-strength connection, but it destroys the modular independence of the components, and cannot realize the lossless disassembly and reuse of precision components such as satellite payloads and on-board sensors.

[0043] Therefore, the embodiment provides a limiting and locking device, which inserts two to-be-connected components into the communication channel of the base, positions the to-be-connected components, then rotates the base by external force, and locks by using the clamping piece and the limiting piece, which replaces the cumbersome steps of positioning, aligning, twisting, locking and the like required by traditional bolt and nut connection, without the need for special operation tools, and can also avoid the space limitation of special tools, and can quickly complete the butt joint and fixation of the two to-be-connected components, further improving the assembly efficiency.

[0044] And, the inner wall clamping limiting piece of the clamping piece and the outer wall of the to-be-connected piece abut and the communication channel limits the to-be-connected piece, which can comprehensively limit the axial, radial and vertical displacement of the to-be-connected piece, avoid the to-be-connected piece from moving or shaking in the use process, and further improve the stability of the connection structure. The rigid clamping of the clamping piece and the inner wall of the to-be-connected piece can withstand axial tension, the abutment of the limiting piece and the outer wall can exert radial pressure to eliminate the gap, and the double synergistic effect can effectively resist vibration, impact, temperature difference and other extreme working conditions in space missions, avoid connection loosening, and ensure the structural stability and reliability of the to-be-connected piece after connection.

[0045] Compared with the traditional bolt and nut connection, the disassembly process of the device is simple and convenient, only needs to reversely apply an external force to drive the base to rotate, so that the clamping piece is separated from the clamping groove of the to-be-connected piece, the limiting piece is loosened from the abutment of the outer wall of the to-be-connected piece, the to-be-connected piece is quickly disassembled, and the whole disassembly is not needed, thereby significantly reducing the maintenance cost and operation difficulty.

[0046] Therefore, the limiting and locking device provided by the embodiment of the present application can solve the problem that the connection between parts depends on special tools through bolts and nuts, the assembly process is complicated, the assembly efficiency is low, it is difficult to adapt to the narrow operation space in the spacecraft cabin, and it cannot meet the demand of quick assembly of parts.

[0047] Referring to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , the embodiment provides a limiting and locking device, which comprises a base 100 and a limiting mechanism 200.

[0048] The limiting and locking device can quickly fix the to-be-connected piece, and replace the traditional bolt and nut structure to connect two to-be-connected pieces, so that the limiting and locking device can adapt to the narrow operation space in the spacecraft cabin and the quick assembly demand, has the characteristics of compact structure and strong adaptability, and can be integrated into the modular connection scene of various spacecraft parts.

[0049] The base 100 has a communication channel 110, the limiting mechanism 200 comprises a clamping piece 210 and a limiting piece 220, and the clamping piece 210 and the limiting piece 220 are both arranged on the base 100.

[0050] The base 100 is configured to, when two to-be-connected pieces 400 are inserted into the communication channel 110, drive the limiting piece 220 and the clamping piece 210 to rotate relative to the to-be-connected pieces 400 under the action of an external force, so that the clamping piece 210 is clamped with the inner wall of the to-be-connected pieces 400, and the limiting piece 220 abuts against the outer wall of the to-be-connected pieces 400, to fix the to-be-connected pieces 400 on the base 100.

[0051] Exemplarily, the base 100 provides fixed support for the limiting mechanism 200, and the base 100 realizes positioning and accommodation of the to-be-connected member 400 through the communication channel 110. The structural strength of the base 100 needs to meet the bearing requirement under the extreme working condition of aerospace, and the base 100 can be made of lightweight and high-strength alloy material to ensure the connection stability and reduce the overall weight.

[0052] The communication channel 110 is a through channel provided on the base 100, which can provide an insertion and positioning space for two to-be-connected members 400. The inner diameter of the communication channel 110 is matched with the outer diameter of the to-be-connected member 400, so as to ensure the initial attitude stability of the to-be-connected member 400 after insertion and avoid deviation during the insertion process, thereby providing a precise positioning basis for the subsequent locking action.

[0053] The clamping member 210 and the limiting member 220 of the limiting mechanism 200 are arranged on the base 100 and can rotate with the base 100. The clamping member 210 is clamped with the inner wall of the to-be-connected member 400 to realize limiting, and the limiting member 220 applies radial pressure by abutting against the outer wall of the to-be-connected member 400 to limit the shaking of the to-be-connected member 400.

[0054] In the present application, the two to-be-connected members 400 are inserted into the communication channel 110 in the same direction. During the insertion process, the communication channel 110 plays a guiding and positioning role. Because the inner diameter of the communication channel 110 is accurately matched with the outer diameter of the to-be-connected member 400, the axial deviation or attitude skew of the to-be-connected member 400 during insertion can be effectively avoided, so as to ensure smooth insertion process and stable initial attitude. The to-be-connected member 400 is continuously inserted until the preset clamping position of the to-be-connected member 400 corresponds to the initial position of the clamping member 210 of the limiting mechanism 200, so that the two to-be-connected members 400 are finally precisely abutted inside the communication channel 110, and the pre-positioning is completed. This process does not require any special tool and can quickly complete the butt joint positioning.

[0055] Then, an external force (such as a rotating force or a rotating force converted from an axial pushing force) in a preset direction is applied to the base 100, and the base 100 is forced to drive the clamping member 210 and the limiting member 220 on the base 100 to rotate synchronously relative to the to-be-connected member 400. With the rotation action, the clamping member 210 gradually embeds into the preset clamping groove in the inner wall of the to-be-connected member 400 to realize the inner wall clamping limiting. At the same time, the limiting member 220 gradually approaches the outer wall of the to-be-connected member 400 with the rotation of the base 100, and finally tightly abuts against the outer wall of the to-be-connected member 400 and applies a continuous radial pressure to form the outer wall abutting limiting. The actions of the clamping member 210 and the limiting member 220 are synchronous, and the to-be-connected member 400 is quickly locked.

[0056] The clamping of the clamping piece 210 and the inner wall of the to-be-connected piece 400 can limit the movement of the to-be-connected piece 400 along the length direction (axial direction) of the base 100. The radial pressure applied by the limiting piece 220 can limit the shaking of the to-be-connected piece 400 along the width direction (radial direction) of the base 100. The fitting of the inner wall of the communication channel 110 of the base 100 and the outer wall of the to-be-connected piece 400 can limit the movement of the to-be-connected piece 400 along the height direction (perpendicular to the axial direction of the communication channel 110) of the base 100. The three work together to comprehensively limit the multiple degrees of freedom of the to-be-connected piece 400, ensuring that the to-be-connected piece 400 is stably fixed on the base 100 without the risk of movement or shaking.

[0057] Through the above arrangement, by inserting two to-be-connected pieces 400 into the communication channel 110 of the base 100, the to-be-connected pieces 400 are positioned, then the base 100 is rotated by external force, and the clamping piece 210 and the limiting piece 220 are locked, replacing the positioning, alignment, tightening, locking and other cumbersome steps required by traditional bolt and nut connection, without the need for special tools, and avoiding the space limitation of special tools, the butt joint and fixation of the two to-be-connected pieces can be quickly completed, further improving the assembly efficiency.

[0058] Moreover, the clamping of the clamping piece 210 and the inner wall of the to-be-connected piece 400, the abutment of the limiting piece 220 and the outer wall of the to-be-connected piece 400, and the limiting of the communication channel 110 to the to-be-connected piece 400 can comprehensively limit the axial, radial and vertical displacement of the to-be-connected piece 400, avoiding movement or shaking during use, further improving the stability of the connection structure. The rigid clamping of the clamping piece 210 and the inner wall of the to-be-connected piece 400 can withstand axial tension, the abutment of the limiting piece 220 and the outer wall can apply radial pressure to eliminate gaps, and the double synergistic effect can effectively resist extreme working conditions such as vibration, impact and temperature difference in space missions, avoid connection loosening, and ensure the structural stability and reliability of the to-be-connected piece 400 after connection.

[0059] Compared with traditional bolt and nut connection, the disassembly process of the device is simple and convenient, only needs to apply external force in the opposite direction to drive the base 100 to rotate, so that the clamping piece 210 is separated from the clamping groove of the to-be-connected piece 400, and the limiting piece 220 is loosened from the abutment of the outer wall of the to-be-connected piece 400, realizing the quick disassembly of the to-be-connected piece 400 without the need for overall disassembly, significantly reducing the maintenance cost and operation difficulty.

[0060] Referring to Figure 1 , Figure 3 , Figure 4 and Figure 6 , in some embodiments, the number of clamping pieces 210 and limiting pieces 220 is at least two, the clamping piece 210 is clamped with the corresponding to-be-connected piece 400, and the limiting piece 220 is abutted with the corresponding to-be-connected piece 400.

[0061] In the present application, the two to-be-connected pieces 400 are inserted in the same direction along the communication channels 110 at both ends of the base 100. The communication channels 110 provide stable guidance for the to-be-connected pieces 400 through the precise fit between their inner diameters and the outer diameters of the to-be-connected pieces 400, avoiding axial deviation or attitude skew during insertion, and ensuring smooth insertion. When the two to-be-connected pieces 400 are inserted to the preset clamping position, at least two clamping pieces 210 will be precisely aligned with the inner wall clamping grooves of the two to-be-connected pieces 400. That is, each to-be-connected piece 400 corresponds to a clamping piece 210. At the same time, at least two limiting pieces 220 also abut the outer walls of the two to-be-connected pieces 400.

[0062] After that, an external force in a preset direction is applied to the base 100, and the base 100 drives all the clamping pieces 210 and limiting pieces 220 to rotate synchronously after being stressed. In this process, each group of clamping pieces 210 will be embedded in the corresponding inner wall clamping grooves of the to-be-connected pieces 400. At the same time, each group of limiting pieces 220 also gradually approaches and tightly abuts the outer walls of the corresponding to-be-connected pieces 400. In addition, the inner walls of the communication channels 110 and the outer walls of the two to-be-connected pieces 400 are respectively fitted, limiting the movement of the two to-be-connected pieces 400 along the direction perpendicular to the axis of the communication channels 110 (height direction), and combining the corresponding constraints of multiple groups of clamping pieces 210 and limiting pieces 220, ensuring that the two to-be-connected pieces 400 are stably fixed without the risk of stress deviation or local loosening.

[0063] Finally, when disassembly is needed, an external force opposite to the locking direction is applied to the base 100 to drive the base 100 to rotate in the opposite direction, and then drive all the clamping pieces 210 and limiting pieces 220 to act synchronously in the opposite direction. At this time, each group of clamping pieces 210 will be separated from the corresponding inner wall clamping grooves of the to-be-connected pieces 400, and each group of limiting pieces 220 will also loosen the abutment of the corresponding outer walls of the to-be-connected pieces 400, instantly releasing all constraints on the two to-be-connected pieces. After that, the two to-be-connected pieces can be directly pulled out from both ends of the communication channels 110, completing the quick disassembly. The synchronous unlocking of multiple components avoids the difficulty of disassembly caused by the jamming of a single component, ensuring efficient and smooth disassembly, and thus eliminating the need for overall disassembly of the device body.

[0064] With the above arrangement, the at least two clamping pieces 210 and the limiting pieces 220 are arranged corresponding to the positions of the plurality of to-be-connected pieces 400, so that each to-be-connected piece 400 is subjected to both axial clamping force and radial pressing force, avoiding the stress concentration problem caused by the simultaneous constraint of a single component on two to-be-connected pieces. The plurality of sets of clamping pieces 210 and limiting pieces 220 rotate synchronously with the base 100, ensuring that all clamping pieces 210 are simultaneously embedded in the corresponding clamping grooves and all limiting pieces 220 are simultaneously abutted against the corresponding outer walls during locking, avoiding the posture deviation of the to-be-connected pieces 400 caused by the lag of a single set of components, and improving the assembly precision. The rigid clamping of the clamping pieces 210 can withstand axial tension, and the radial abutment of the limiting pieces 220 can eliminate the connection gap, which can effectively resist extreme working conditions such as vibration, impact, and temperature difference in space missions, avoid connection loosening, and ensure the structural stability of the to-be-connected pieces 400 after connection. During disassembly, the plurality of sets of components are unlocked synchronously, which can quickly release all constraints, avoiding the jamming of the to-be-connected pieces 400 caused by a single component, and further improving the disassembly efficiency.

[0065] With reference to Figure 2 and Figure 3 In some embodiments, the clamping piece 210 includes an elastic arm 211 and a clamping boss 212, and the at least two elastic arms 211 are arranged on the base 100 in a circumferential direction, and the clamping boss 212 is arranged on the end of the elastic arm 211, and the clamping boss 212 is used for clamping with the inner wall of the to-be-connected piece 400.

[0066] In this application, when a preset direction external force is applied to the base 100, the base 100 drives the elastic arm 211 and the clamping boss 212 on it to rotate relative to the to-be-connected piece 400 synchronously. During the rotation process, the clamping boss 212 gradually contacts and is pressed by the inner wall of the to-be-connected piece 400, forcing the elastic arm 211 to elastically deform (such as bending away from the axis of the communication channel 110), to avoid the inner wall of the to-be-connected piece 400 and continuously approach the clamping groove. When the base 100 is rotated to a preset locking angle, the clamping boss 212 is completely corresponding to the position of the clamping groove, and the elastic arm 211 is reset under the action of its elastic restoring force, pushing the clamping boss 212 to embed into the clamping groove of the to-be-connected piece 400, realizing the rigid clamping of the clamping boss 212 and the clamping groove of the to-be-connected piece 400.

[0067] Then, when unlocking is needed, an opposite external force is applied to the base 100 to drive the base 100 to drive the elastic arm 211 and the clamping boss 212 to rotate in the opposite direction. The clamping boss 212 is again pressed by the inner wall of the clamping groove, and the elastic arm 211 elastically deforms in the opposite direction, and the clamping boss 212 is pulled out of the clamping groove and returns to the initial avoiding position. After all the clamping bosses 212 are unlocked synchronously, the axial constraint of the at least two to-be-connected pieces 400 is released, and the to-be-connected pieces 400 can be directly pulled out of the communication channel 110, completing the disassembly.

[0068] With the above arrangement, the elastic arm 211 has a deformable characteristic, and can compensate for the slight assembly error of the to-be-connected part 400 during clamping to ensure that the clamping boss 212 is smoothly inserted into the clamping groove, and the elastic restoring force can make the clamping boss 212 tightly fit the inner wall of the clamping groove of the to-be-connected part 400, forming a continuous axial clamping force, effectively resisting vibration and impact under space working conditions, and avoiding clamping loosening. The at least two elastic arms 211 are arranged in a circumferential direction of the base 100 and are spaced apart, so that each elastic arm 211 corresponds to one to-be-connected part 400, so that the clamping boss 212 on the elastic arm 211 is clamped with the corresponding to-be-connected part 400 when the at least two to-be-connected parts 400 abut in the communication channel 110, and each limiting part 220 abuts with the to-be-connected part 400 at the same time, effectively avoiding axial movement or radial skew of the to-be-connected part due to uneven stress.

[0069] In addition, the elastic arm 211 and the clamping boss 212 can be integrally formed with the base 100, and the overall structure is simple and does not require additional redundant components. The rigid fit of the clamping boss 212 and the inner wall clamping groove of the to-be-connected part 400 can stably withstand the axial tension of the to-be-connected part 400, accurately limit the movement of the to-be-connected part 400 along the length direction of the base 100, and form a synergistic effect with the radial abutment of the limiting part 220 and the vertical direction limiting of the communication channel 110, further perfecting the multi-degree-of-freedom constraint system of the to-be-connected part 400, and improving the overall connection stability and extreme working condition adaptability.

[0070] Referring to Figure 2 and Figure 3 In some embodiments, it further includes a support beam 310 and a reinforcing beam 320, the support beam 310 is arranged on the base 100, the reinforcing beam 320 is arranged on the support beam 310, at least two elastic arms 211 are arranged on the support beam 310 in the extension direction of the reinforcing beam 320, one end of the first elastic arm 211 is connected with one end of the reinforcing beam 320, one end of the second elastic arm 211 is connected with the other end of the reinforcing beam 320, and the clamping boss 212 is arranged on the other end of the first elastic arm 211 and the other end of the second elastic arm 211.

[0071] In the present application, the reinforcing beam 320 is connected with the two elastic arms 211 at both ends, which can realize synchronous rotation, synchronous deformation and synchronous reset of the two elastic arms 211, ensure that the two clamping bosses 212 are simultaneously inserted into the clamping grooves of the corresponding to-be-connected parts 400 when locked, and simultaneously withdrawn when unlocked, avoid the attitude deviation of the to-be-connected part 400 caused by the action lag of a single elastic arm 211, greatly improve the assembly alignment accuracy of the two to-be-connected parts 400, and solve the problem of asynchronous action of multiple independent elastic arms 211.

[0072] And the support beam 310 provides a stable mounting carrier for the reinforcing beam 320 and the elastic arm 211, disperses the radial force and axial force generated when the elastic arm 211 is clamped, and avoids the root of the elastic arm 211 from being broken or fatigued due to force concentration. The reinforcing beam 320 has high structural strength, can constrain excessive deformation of the elastic arm, and improves the anti-vibration and anti-impact capability of the entire clamping mechanism, so that the device can better resist extreme working conditions in space missions and prolong the service life.

[0073] The support beam 310 and the reinforcing beam 320 ensure the stable clamping of the clamping piece 210, so that the clamping boss 212 can reliably limit the axial movement of the to-be-connected piece 400, and the radial abutment of the limiting piece 220 and the vertical direction limiting of the communication channel 110 form a stable limiting structure. At the same time, the rigid beam structure reduces the deformation gap of the clamping mechanism, further eliminates the risk of shaking of the to-be-connected piece, and improves the overall connection stability.

[0074] In some embodiments, the elastic arm 211 is an arc structure, the center of the elastic arm 211 coincides with the center of the base 100, the other end of the first elastic arm 211 extends towards the end of the second elastic arm 211, and the other end of the second elastic arm 211 extends towards the end of the first elastic arm 211.

[0075] In this application, the two elastic arms 211 are arc structures, the two elastic arms 211 are arranged in opposite directions and concentrically with the base 100, the motion trajectories of the two elastic arms 211 are completely symmetrical during rotation, and the force transmission of the reinforcing beam 320 can realize synchronous embedding and synchronous disengagement of the clamping boss 212 into and out of the clamping slots of the two elastic arms 211. The asymmetric structure of the two elastic arms 211 can avoid action lag or deviation, ensure the accurate alignment of the clamping positions of the two to-be-connected pieces 400, and improve the overall assembly precision.

[0076] And the arc-shaped elastic arm 211 is arranged concentrically with the base 100 and extends in opposite directions, which makes the overall occupied volume of the clamping mechanism smaller compared with the linear elastic arm without reserving additional deformation space. At the same time, the opposite extension structure makes the two clamping bosses 212 closer to the clamping slots of the corresponding to-be-connected pieces 400, shortens the force transmission path, further improves the clamping response speed, and adapts to the assembly requirements of the narrow space in the aerospace cabin.

[0077] The stable clamping of the arc-shaped elastic arm 211 ensures that the clamping boss 212 reliably limits the axial movement of the to-be-connected piece 400, and the radial abutment of the limiting piece 220 and the vertical direction limiting of the communication channel 110 form a cooperative constraint. At the same time, the rigidity of the arc structure is better than that of the linear arm, which can reduce the deformation gap after clamping, further eliminate the risk of shaking of the to-be-connected piece 400, and improve the overall connection stability.

[0078] With reference to Figure 1 , Figure 2 and Figure 3 In some embodiments, the limiting member 220 includes at least two limiting bosses 221, which are arranged circumferentially along the base 100 and used to abut against the corresponding connecting pieces 400.

[0079] In the present application, the at least two limiting bosses 221 are arranged circumferentially along the base 100, and each limiting boss 221 exerts radial pressure on the outer wall of the corresponding connecting piece 400. The radial abutment of the limiting boss 221 cooperates with the axial clamping of the clamping piece 210 and the vertical direction limiting of the communication channel 110 to form a coordinated constraint system, which comprehensively limits the axial movement, radial movement and vertical movement of the connecting piece 400, thereby resisting extreme loads such as vibration and impact under aerospace working conditions, preventing the connecting piece 400 from moving, improving the structural reliability of the connecting piece 400 after connection, and meeting the high-strength requirements of the modular connection of spacecraft components.

[0080] Moreover, the at least two limiting bosses 221 rotate synchronously with the base 100, realizing synchronous abutment and synchronous unlocking, ensuring that each limiting boss 221 exerts radial pressure simultaneously when locking and releasing the constraint simultaneously when unlocking, avoiding attitude deviation of the connecting piece 400 caused by action lag of a single limiting boss 221, and improving the assembly alignment accuracy of the connecting piece 400.

[0081] Specifically, the abutment and unlocking actions of the limiting boss 221 can be realized only by rotating the base 100, without the need for special tools, and the locking and unlocking are completed synchronously with the clamping piece 210, greatly simplifying the assembly process and improving the assembly efficiency. When disassembled, the constraint is released synchronously, avoiding the jamming of the connecting piece 400 caused by the single limiting boss 221, and the device body does not need to be disassembled as a whole.

[0082] It should be noted that when the at least two connecting pieces 400 are completely embedded in the communication channel 110 of the base 100, the base 100 is driven to rotate around the central axis by external force, at which time the mating surface of the limiting boss 221 and the connecting piece 400 is converted from linear contact to circumferential locking and cooperation. By accurately controlling the rotation angle of the base 100, the connection force is continuously adjusted, so that the greater the rotation angle of the base 100 (the closer to the connecting rod 410 of the connecting piece 400), the stronger the connection force between the base 100 and the at least two connecting pieces 400, thereby realizing continuous adjustment of the connection force.

[0083] With reference to Figure 1In some embodiments, a cover plate 330 is further included, which is arranged on the base 100, one end of the limiting boss 221 is connected with the base 100, and the other end of the limiting boss 221 is connected with the cover plate 330.

[0084] In the present application, the cover plate 330 cooperates with the base 100, the top end of the limiting boss 221 is connected with the cover plate 330, and the bottom end of the limiting boss 221 is connected with the base 100, which limits the radial movement, bending deformation and attitude deviation of the limiting boss 221 during rotation, ensures the smooth movement of the limiting boss 221 along the preset track, and precisely abuts against the outer wall of the to-be-connected part 400.

[0085] Specifically, the cover plate 330 is arranged to form an integrated frame with the base 100, which not only provides end support for the limiting boss 221, but also disperses the radial force generated when the limiting boss 221 abuts, avoids the root of the limiting boss 221 from breaking and fatigue damage due to stress concentration, and prolongs the service life of the device. The cover plate 330, the base 100 and the at least two limiting bosses 221 form a communication channel 110, which facilitates the movement of the at least two to-be-connected parts 400 along the extension direction of the communication channel 110 and the abutment in the communication channel 110.

[0086] Referring to Figure 1 and Figure 6 Another embodiment of the present application provides an assembly system, which includes at least two to-be-connected parts 400 and the limiting and locking device of any one of the above.

[0087] In the present application, by inserting the at least two to-be-connected parts 400 into the communication channel 110 of the base 100 of the limiting and locking device, the clamping part 210 and the limiting part 220 of the base 100 are used to abut against the to-be-connected part 400, which plays a connecting role, guarantees the structural stability and reliability of the to-be-connected part 400 after connection, and meets the high-strength requirement of the modular connection of spacecraft parts.

[0088] Referring to Figure 3 In some embodiments, the to-be-connected part 400 includes a connecting rod 410 and an arc-shaped connecting plate 420, the end of the connecting rod 410 is connected with the corresponding arc-shaped connecting plate 420, the at least two arc-shaped connecting plates 420 move towards each other under the action of an external force and are inserted into the communication channel 110 of the limiting and locking device, a plurality of clamping grooves 421 are arranged on the inner wall of the arc-shaped connecting plate 420, the plurality of clamping grooves 421 are arranged at intervals along the extension direction of the arc-shaped connecting plate 420, and the clamping part 210 of the limiting and locking device is clamped with the clamping grooves 421.

[0089] In the present application, the external force drives the arc-shaped connecting plates 420 of the at least two to-be-connected components 400 to move towards each other, so that the arc-shaped connecting plates 420 carry the connecting rods 410 to be inserted into the communication channels 110 of the limiting and locking device base 100 synchronously. Due to the arc-shaped contour of the arc-shaped connecting plates 420 being adapted to the inner wall of the communication channels 110, the arc-shaped connecting plates 420 can further fit the inner wall of the communication channels 110 during the insertion process, cooperating with the guiding and positioning effect of the communication channels 110, to avoid the posture skewing or axial deviation of the to-be-connected components 400 during the insertion. The to-be-connected components are continuously pushed until the preset clamping grooves 421 on the inner wall of the arc-shaped connecting plates 420 are accurately corresponding to the initial position of the clamping protrusions 212 of the clamping components 210 in the limiting mechanism 200, at which time the arc-shaped connecting plates 420 of the two to-be-connected components 400 complete the abutment in the communication channels 110, realizing the accurate pre-positioning of the to-be-connected components 400, and this process does not require special tools.

[0090] Specifically, a plurality of clamping grooves 421 are arranged on the inner wall of the arc-shaped connecting plates 420 along the extension direction, and the clamping protrusions 212 can be adapted to the clamping grooves 421 at different positions, so that the to-be-connected components can adjust the insertion depth according to the actual assembly length requirement, so that by controlling the rotation angle of the base 100, the connection force between the base 100 and the at least two to-be-connected components 400 can be adjusted, until one of the limiting protrusions 221 rotates to be close to the connecting rod 410, at which position the connection structure between the to-be-connected components 400 and the base 100 is more stable, preventing the to-be-connected components 400 from moving, and further improving the connection reliability.

[0091] It should be noted that in the present application, the base 100 of the limiting and locking device is a circular structure, and the cover plate 330 of the limiting and locking device is also a circular structure, the cover plate 330 is connected with the base 100 through the limiting protrusions 221, the gap between the adjacent two limiting protrusions 221 constitutes the communication channel 110, the arc-shaped connecting plates 420 of the to-be-connected components 400 extend into the communication channel 110, the center of the arc-shaped connecting plates 420 coincides with the center of the base 100, so that when the at least two to-be-connected components 400 abut in the base 100 and the base 100 rotates under the action of external force, the limiting protrusions 221 slide along the outer wall of the arc-shaped connecting plates 420 of the to-be-connected components 400, and the arc-shaped connecting plates 420 abut with the outer wall of the limiting protrusions 221.

[0092] Furthermore, by accurately controlling the rotation angle of the base 100, the size of the connection force can be adjusted. Specifically, the greater the rotation angle of the base 100, the closer to the position of the connecting rod 410 of the to-be-connected components 400, the greater the abutment force when the base 100 and the arc-shaped connecting plates 420 are separated, the stronger the connection force between the base 100 and the at least two to-be-connected components 400, and thus the continuous adjustment of the connection force is realized.

[0093] In some embodiments, a limiting sliding groove is arranged on the outer wall of the arc-shaped connecting plate 420, and the limiting piece 220 of the limiting and locking device is slidably arranged on the limiting sliding groove. When the clamping piece 210 is clamped with the clamping groove 421, the limiting piece 220 abuts against the limiting sliding groove.

[0094] In the present application, during the process of rotating the base 100, the limiting boss 221 can move along the limiting sliding groove of the arc-shaped connecting plate 420. The limiting sliding groove is arranged along the extending direction of the arc-shaped connecting plate 420 and can be adapted with the plurality of spaced clamping grooves 421. When the clamping piece 210 cooperates with the clamping grooves 421 at different positions to realize multi-gear assembly, the limiting piece 220 can be synchronously slid in the limiting sliding groove to the corresponding position and abut, so as to ensure that the limiting constraint can be accurately effective under different assembly lengths, and the adaptation capability of the device to different specifications of the to-be-connected pieces is improved.

[0095] Finally, it should be noted that: other embodiments of the application will be readily apparent to those skilled in the art with the disclosure herein in mind. The application is intended to cover any variations, uses or adaptive changes of the application following the general principles of the application and including common knowledge or conventional technical means in the art which are not disclosed by the application, and is not limited to the precise structure described above and shown in the drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the application is only limited by the appended claims.

Claims

1. A limiting and locking device, characterized in that, include: A base (100) having a communication channel (110); A limiting mechanism (200) includes a snap-fit ​​member (210) and a limiting member (220), both of which are disposed on the base (100); The base (100) is configured such that when two pieces to be connected (400) are inserted into the connecting channel (110), under the action of an external force, the limiting member (220) and the snap-fit ​​member (210) rotate relative to the pieces to be connected (400), so that the snap-fit ​​member (210) snaps into the inner wall of the pieces to be connected (400), and the limiting member (220) abuts against the outer wall of the pieces to be connected (400), so as to fix the pieces to be connected (400) on the base (100).

2. The limiting and locking device according to claim 1, characterized in that, The number of the snap-fit ​​member (210) and the limiting member (220) is at least two. The snap-fit ​​member (210) snaps into the corresponding member to be connected (400), and the limiting member (220) abuts against the corresponding member to be connected (400).

3. The limiting and locking device according to claim 2, characterized in that, The snap-fit ​​component (210) includes an elastic arm (211) and a snap-fit ​​boss (212). At least two elastic arms (211) are arranged circumferentially on the base (100). The snap-fit ​​boss (212) is disposed on the end of the elastic arm (211) and is used to snap-fit ​​with the inner wall of the component to be connected (400).

4. The limiting and locking device according to claim 3, characterized in that, It also includes a support beam (310) and a reinforcing beam (320). The support beam (310) is disposed on the base (100), and the reinforcing beam (320) is disposed on the support beam (310). At least two elastic arms (211) are spaced apart on the support beam (310) along the extension direction of the reinforcing beam (320). One end of the first elastic arm (211) is connected to one end of the reinforcing beam (320), and one end of the second elastic arm (211) is connected to the other end of the reinforcing beam (320). The other ends of the first elastic arm (211) and the other ends of the second elastic arm (211) are both provided with the snap-fit ​​boss (212).

5. The limiting and locking device according to claim 4, characterized in that, The elastic arm (211) has an arc-shaped structure. The center of the elastic arm (211) coincides with the center of the base (100). The other end of the first elastic arm (211) extends toward one end of the second elastic arm (211), and the other end of the second elastic arm (211) extends toward one end of the first elastic arm (211).

6. The limiting and locking device according to any one of claims 1-5, characterized in that, The limiting member (220) includes a limiting boss (221), and the number of the limiting bosses (221) is at least two. The at least two limiting bosses (221) are arranged at intervals along the circumference of the base (100), and the limiting bosses (221) are used to abut against the corresponding connecting member (400).

7. The limiting and locking device according to claim 6, characterized in that, It also includes a cover plate (330) which covers the base (100), one end of the limiting boss (221) is connected to the base (100), and the other end of the limiting boss (221) is connected to the cover plate (330).

8. An assembly system, characterized in that, It includes at least two parts to be connected (400) and the limiting locking device according to any one of claims 1-7.

9. The assembly system according to claim 8, characterized in that, The component to be connected (400) includes a connecting rod (410) and an arc-shaped connecting plate (420). The end of the connecting rod (410) is connected to the corresponding arc-shaped connecting plate (420). At least two arc-shaped connecting plates (420) move towards each other under the action of external force and are inserted into the communication channel (110) of the limiting locking device. The inner wall of the arc-shaped connecting plate (420) is provided with a plurality of snap-fit ​​grooves (421). The plurality of snap-fit ​​grooves (421) are spaced apart along the extension direction of the arc-shaped connecting plate (420). The snap-fit ​​component (210) of the limiting locking device snaps into the snap-fit ​​grooves (421).

10. The assembly system according to claim 9, characterized in that, The outer wall of the arc-shaped connecting plate (420) is provided with a limiting groove. The limiting member (220) of the limiting locking device is slidably disposed on the limiting groove. When the snap-fit ​​member (210) snaps into the snap-fit ​​groove (421), the limiting member (220) abuts against the limiting groove.

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