Connection structure and nuclear fusion device

Abstract

The present application discloses a connection structure and a nuclear fusion device, belonging to the field of fastening connection technology. The connection structure includes: a pin shaft including a connected boss and a rod portion, the rod portion is used to pass through the mounting holes of multiple connection objects, and is provided with a first protrusion and a second protrusion suitable for being spaced apart from the boss; a limiting member is locked with the pin shaft to fasten and install the multiple connection objects, and is provided with a first matching portion and a second matching portion, and forms a through hole; an elastic member is sleeved on the outside of the rod portion; the first protrusion and the second protrusion are configured to pass through the through hole in a direction away from the boss and then rotate axially at a set angle so that the first protrusion and the first matching portion are axially opposite to each other, and the second protrusion and the second matching portion are axially opposite to each other; the elastic member is configured to drive the rod portion toward the boss so that the first protrusion and the first matching portion are axially limited and matched with each other along the pin shaft, and the second protrusion and the second matching portion are circumferentially limited and matched with each other along the pin shaft. Using this structure, quick installation and removal of the connection objects can be achieved.

Description

Technical Field

[0001] This application belongs to the field of fastening and connection technology, and particularly relates to a connection structure and a nuclear fusion device. Background Technology

[0002] In nuclear fusion engineering, a large number of connection structures are required to install and fix pipelines and lines. Common connection methods include welding and threaded connections. However, welded connections cannot be easily disassembled, which is not conducive to later maintenance. Threaded connections have low installation efficiency and a short service life. In addition, neither welded nor threaded connections have shockproof function, which leads to a great risk of pipelines and lines loosening and falling off under long-term use. Summary of the Invention

[0003] This application aims to address at least one of the technical problems existing in the prior art. To this end, this application proposes a connection structure and a nuclear fusion device that enables rapid installation and disassembly of the connected objects, increases the sustainability and maintainability of the connection structure, and reduces the risk of pipelines becoming loose or falling off.

[0004] In a first aspect, this application provides a connection structure for connecting multiple connection objects having mounting holes, including:

[0005] A pin includes a connected shoulder and a rod portion, the rod portion being used to pass through mounting holes of the plurality of connected objects, and having a first protrusion and a second protrusion adapted to be spaced apart from the shoulder;

[0006] A limiting member, locked with the pin to securely install the plurality of connected objects, is provided with a first mating part and a second mating part, and forms a through hole;

[0007] An elastic element is sleeved on the outside of the rod portion; wherein the first protrusion and the second protrusion are configured to pass through the through hole in a direction away from the shoulder and then rotate about an axial angle so that the first protrusion and the first mating portion are axially opposite each other, and the second protrusion and the second mating portion are axially opposite each other; the elastic element is configured to drive the rod portion to move toward the shoulder so that the first protrusion and the first mating portion are axially limited to fit along the pin, and the second protrusion and the second mating portion are circumferentially limited to fit along the pin.

[0008] According to the connection structure of this application, through the cooperative design of the aforementioned pin, limiting components, and elastic elements, combined with the synergistic locking design of axial and circumferential limiting, rapid installation and disassembly of the connected object are achieved. On the one hand, compared with welding, the sustainability and maintainability of the connection structure are increased. In the maintenance of nuclear fusion devices, faulty pipes or lines can be quickly disassembled for repair or replacement, thereby greatly shortening maintenance time. On the other hand, compared with threaded connections, the tedious process of multiple rotations and tightening is eliminated, thereby significantly improving installation efficiency. In large-scale pipeline installation projects, the construction cycle can be significantly shortened, while avoiding problems such as thread wear and stripping under long-term use, thereby reducing maintenance frequency and extending the service life of the connection structure. Furthermore, the elastic element can absorb some energy during vibration, reducing the impact of vibration on the connection interface, thereby significantly reducing the risk of pipeline loosening and falling off. Moreover, the structure is simple, the components are standardized, the manufacturing cost is low, and it can adapt to various connection objects of different sizes and scenarios, thereby increasing the usability and compatibility of the connection structure and facilitating large-scale promotion and use.

[0009] According to one embodiment of this application, the second protrusion is connected to the end of the first protrusion near the shoulder, and the second protrusion does not protrude outward from the first protrusion. The first mating part includes a first limiting surface formed by the end face of the limiting member away from the shoulder. The first protrusion abuts against the first limiting surface. The second mating part includes a groove formed in the wall of the through hole. The first limiting surface is adjacent to the groove, and the second protrusion is locked to the groove.

[0010] According to one embodiment of this application, the outer contour of the through hole is conformally set to the outer contour of the first protrusion, and the outer side wall of the first protrusion includes a first plane, a first arc surface, a second plane, and a second arc surface connected end to end. The curvature centers of the first arc surface and the second arc surface are both located within the first protrusion, and the second protrusion is distributed on the end face of the first protrusion near the edge of the first arc surface and / or the second arc surface.

[0011] According to one embodiment of this application, the second protrusion is provided with a guide slope for engaging with the groove.

[0012] According to one embodiment of this application, the pin is an integral structure with the first protrusion and the second protrusion.

[0013] According to one embodiment of this application, the plurality of connection objects are divided into a first part and a second part; wherein...

[0014] A first clamping space is formed between the shoulder and the elastic member, the first clamping space being used to accommodate the stacked first portion and the second portion.

[0015] According to one embodiment of this application, the plurality of connection objects are divided into a first part and a second part; wherein...

[0016] A second clamping space is formed between the elastic member and the limiting member, the second clamping space being used to accommodate the stacked first part and the second part.

[0017] According to one embodiment of this application, the plurality of connection objects are divided into a first part and a second part; wherein...

[0018] A third clamping space is formed between the shoulder and the elastic member, the third clamping space being used to accommodate the first part, and a fourth clamping space is formed between the elastic member and the limiting member, the fourth clamping space being used to accommodate the second part.

[0019] According to one embodiment of this application, the plurality of connection objects are divided into a first part and a second part; wherein...

[0020] A fifth clamping space is formed between the shoulder and the elastic member, the fifth clamping space being used to accommodate the first part, and the end of the limiting member facing away from the elastic member being used to fix the second part.

[0021] According to one embodiment of this application, the plurality of connection objects are divided into a first part and a second part; wherein...

[0022] A sixth clamping space is formed between the elastic member and the limiting member. The sixth clamping space is used to accommodate the first part, and the end of the limiting member opposite to the elastic member is used to fix the second part.

[0023] Secondly, this application provides a nuclear fusion device, which includes:

[0024] The connection structure as described in any of the above schemes;

[0025] The bracket and the support arm, wherein the plurality of connected objects include the bracket and the support arm, the bracket and the support arm being connected by the connecting structure to form a channel;

[0026] Cables are laid in the channel.

[0027] According to the nuclear fusion device of this application, the aforementioned connection structure enables rapid installation and disassembly of the connected objects. Firstly, compared to welding, it increases the sustainability and maintainability of the connection structure. During the maintenance of the nuclear fusion device, faulty pipes or lines can be quickly disassembled for repair or replacement, significantly shortening maintenance time. Secondly, compared to threaded connections, it eliminates the tedious process of multiple rotations and tightening, greatly improving installation efficiency. In large-scale pipeline installation projects, it can significantly shorten the construction cycle and avoid problems such as thread wear and stripping under long-term use, thereby reducing maintenance frequency and extending the service life of the connection structure. Furthermore, the elastic element can absorb some energy during vibration, reducing the impact of vibration on the connection interface and significantly reducing the risk of pipeline loosening and detachment. Finally, the structure is simple, components are standardized, and manufacturing costs are low, allowing it to adapt to various connected objects of different sizes and in different scenarios, thus increasing the usability and compatibility of the connection structure and facilitating large-scale promotion and use.

[0028] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0029] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0030] Figure 1 This is one of the schematic diagrams illustrating the assembly process of the connection structure provided in the embodiments of this application;

[0031] Figure 2 This is the second schematic diagram of the assembly process of the connection structure provided in the embodiments of this application;

[0032] Figure 3 This is the third schematic diagram of the assembly process of the connection structure provided in the embodiments of this application;

[0033] Figure 4 This is the fourth schematic diagram of the assembly process of the connection structure provided in the embodiments of this application;

[0034] Figure 5 This is an exploded view of the connection structure provided in the embodiments of this application;

[0035] Figure 6 This is a cross-sectional view of the connection structure provided in the embodiments of this application;

[0036] Figure 7 This is one of the structural diagrams of the connection structure and multiple connection objects provided in the embodiments of this application;

[0037] Figure 8This is a second schematic diagram of the connection structure and multiple connection objects provided in the embodiments of this application;

[0038] Figure 9 This is the third schematic diagram of the connection structure and multiple connection objects provided in the embodiments of this application;

[0039] Figure 10 This is the fourth schematic diagram of the connection structure and multiple connection objects provided in the embodiments of this application;

[0040] Figure 11 This is the fifth schematic diagram of the connection structure and multiple connection objects provided in the embodiments of this application.

[0041] Figure label:

[0042] Connection structure 10;

[0043] Pin 11, shoulder 111, rod 112;

[0044] Limiting component 12, through hole 121, first mating part 122, second mating part 123;

[0045] Elastic element 13, first protrusion 14, first plane 141, first arc surface 142, second plane 143, second arc surface 144, second protrusion 15, guide slope 151;

[0046] First clamping space 101, second clamping space 102, third clamping space 103, fourth clamping space 104, fifth clamping space 105, sixth clamping space 106;

[0047] Part 1, 20a; Part 2, 20b. Detailed Implementation

[0048] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0049] This application discloses a connection structure 10 for connecting multiple connection objects having mounting holes.

[0050] The following is for reference. Figures 1-11 The connection structure 10 according to an embodiment of this application is described.

[0051] In some embodiments, as Figure 1-Figure 5 As shown, the connecting structure 10 includes: a pin 11, a limiting member 12, and an elastic member 13.

[0052] The pin 11 includes a connected shoulder 111 and a rod 112. The rod 112 is used to pass through mounting holes of multiple connected objects, and the rod 112 is provided with a first protrusion 14 and a second protrusion 15 adapted to be spaced apart from the shoulder 111. A limiting member 12 is locked to the pin 11 to securely install the multiple connected objects. The limiting member 12 is provided with a first mating part 122 and a second mating part 123, and the limiting member 12 forms a through hole 121. An elastic member 13 is sleeved on the rod 112. The first protrusion 14 and the second protrusion 15 are connected to the mounting holes of multiple connected objects. 15 is configured to pass through the through hole 121 in a direction away from the shoulder 111 and then rotate around the axis by a set angle so that the first protrusion 14 and the first mating part 122 are arranged opposite each other in the axial direction, and the second protrusion 15 and the second mating part 123 are arranged opposite each other in the axial direction. The elastic member 13 is configured to drive the rod part 112 to move toward the shoulder 111 so that the first protrusion 14 and the first mating part 122 are axially limited and engaged along the pin 11, and the second protrusion 15 and the second mating part 123 are circumferentially limited and engaged along the pin 11.

[0053] The shoulder 111 can be disc-shaped, square, or other shapes, used to directly abut against the elastic member 13 or against a connecting object. This application embodiment does not limit this.

[0054] like Figure 1-Figure 5 As shown, the rod 112 can be a cylindrical rod, and the diameter of the rod 112 is adapted to the mounting holes of two or more connected objects to ensure smooth passage.

[0055] The through hole 121, the first mating part 122, and the second mating part 123 of the limiting member 12 can be molded into specific shapes by mold casting or machining. The size design of the through hole 121 allows the first protrusion 14 and the second protrusion 15 to pass through smoothly, and leaves a certain margin for the rod part 112 to rotate flexibly and move freely along the axial direction.

[0056] The first protrusion 14 may be a protrusion, an ear piece, or a key, etc., and the first mating part 122 may be a groove, a limiting plane, or a keyway, etc. The embodiments of this application do not limit this.

[0057] The second protrusion 15 can be a protrusion, a gear, or a key, etc., and the second mating part 123 can be a groove, a gear, or a keyway, etc. The embodiments of this application do not limit this.

[0058] The elastic element 13 may include, but is not limited to, springs, elastic sleeves, elastic bars, or spring sheets, and the embodiments of this application do not limit this.

[0059] Select an elastic element 13 with appropriate elastic coefficient and size based on the required fastening force of multiple connected objects.

[0060] In actual implementation, such as Figure 1-Figure 4As shown, during the assembly process of the connecting structure 10: the rod portion 112 of the pin 11 is sequentially passed through the mounting holes of multiple connecting objects. At least two connecting objects may be stacked on the same position on the pin 11, or at least two connecting objects may be spaced apart and distributed at different positions on the pin 11. This embodiment does not impose any limitations on this. The first protrusion 14 and the second protrusion 15 are passed through the through hole 121 of the limiting member 12 along the axial direction of the pin 11, so that the rod portion 112 of the pin 11 passes through the through hole 121. The shoulder 111 of the pin 11 is located on one side of the limiting member 12, while the first protrusion 14 and the second protrusion 15 are located on the opposite side of the limiting member 12. During the entire axial movement, the shoulder 111 continuously approaches the limiting member 12, and the elastic element 13 sleeved outside the rod portion 112 is continuously compressed, meaning the operator must overcome the continuously increasing elastic force of the spring. The pin 11 can be rotated around its axis by a set angle, or, if the limiting member 12 is not fixed, the pin 11 can be rotated around its axis by a set angle. In other words, the pin 11 and the limiting member 12 can rotate relative to each other by a set angle. After rotating by the set angle, the first protrusion 14 and the first mating part 122 are aligned axially, and the second protrusion 15 and the second mating part 123 are aligned axially. Angle markings can be made on the pin 11 and the limiting member 12 in advance for easy operation. The operator can stop applying external force to the elastic element 13. The elastic force of the elastic element 13, now without resistance, drives the rod 112 to retract along its original path, moving towards the shoulder 111, until the first protrusion 14 moves to axially engage with the first mating part 122. This axial engagement resists pull-out force, ensuring that multiple connected objects are clamped axially and will not separate. Simultaneously, the second protrusion 15 moves to circumferentially engage with the second mating part 123, resisting torque and preventing the pin 11 from rotating during use, maintaining connection stability and reducing wear points. At this time, the elastic element 13 remains compressed, continuously providing fastening force. Furthermore, during use, the elastic element 13 can compensate for thermal expansion, vibration, or wear, maintaining constant pressure and providing shock absorption. The entire assembly process requires only insertion, rotation, and release, without the need for complex tools.

[0061] During the disassembly of the connecting structure 10: the operator can push the pin 11 toward the first protrusion 14 / second protrusion 15, so that the first protrusion 14 separates from the first mating part 122, and at the same time the second protrusion 15 separates from the second mating part 123. Then the pin 11 is rotated around the axis by a set angle. Alternatively, if the limiting member 12 is not fixed, the pin 11 can be rotated around the axis of the pin 11 by a set angle. In other words, the pin 11 and the limiting member 12 can rotate relative to each other by a set angle. The rotation direction during the disassembly process is opposite to the rotation direction during the installation process. After rotating the set angle, the first protrusion 14 and the first mating part 122 are misaligned axially, and the second protrusion 15 and the second mating part 123 are misaligned axially. At this time, the projection of the through hole 121 along the axial direction covers the projections of the first protrusion 14 and the second protrusion 15 along the axial direction. The operator can stop applying external force to the elastic member 13. In this way, the elastic force of the elastic member 13, which has lost its resistance, drives the rod part 112 to exit the through hole 121 of the limiting member 12, that is, to move towards the shoulder 111. During this period, the operator can also always hold the pin 11 to control the stability of its movement direction until the pin 11, the first protrusion 14 and the second protrusion 15 are completely withdrawn from the through hole 121 of the limiting member 12.

[0062] The connection structure 10 provided in this application embodiment, through the cooperative design of the aforementioned pin 11, limiting member 12, and elastic member 13, combined with the synergistic locking design of axial and circumferential limiting, enables rapid installation and disassembly of the connected object. On the one hand, compared with welding, it increases the sustainability and maintainability of the connection structure 10. In the maintenance of nuclear fusion devices, faulty pipes or lines can be quickly disassembled for repair or replacement, thereby greatly shortening the maintenance time. On the other hand, compared with threaded connections, it eliminates the tedious process of multiple rotations and tightening, thereby significantly improving installation efficiency. In large-scale pipeline installation projects, it can significantly shorten the construction cycle and avoid problems such as thread wear and stripping under long-term use, thereby reducing maintenance frequency and extending the service life of the connection structure 10. Furthermore, the elastic member 13 can absorb some energy during vibration, reducing the impact of vibration on the connection interface, thereby significantly reducing the risk of pipeline loosening and falling off. Moreover, the structure is simple, the components are standardized, the manufacturing cost is low, and it can adapt to various connection objects of different sizes and scenarios, thereby increasing the usability and compatibility of the connection structure 10, which is conducive to large-scale promotion and use.

[0063] The angle can be set to 30°, 45°, 60°, 90° or 120°, etc., and this application embodiment does not limit this.

[0064] For example, such as Figure 1-Figure 5 As shown, the angle is set to 90°.

[0065] In some embodiments, as Figure 1-Figure 5 As shown, the second protrusion 15 is connected to the end of the first protrusion 14 near the shoulder 111, and the second protrusion 15 does not protrude outward from the first protrusion 14. The first mating part 122 includes a first limiting surface formed by the end face of the limiting member 12 away from the shoulder 111. The first protrusion 14 abuts against the first limiting surface. The second mating part 123 includes a groove formed in the wall of the through hole 121. The first limiting surface is adjacent to the groove, and the second protrusion 15 is locked to the groove.

[0066] In fact, the second protrusion 15 is located near the end of the first protrusion 14, that is, close to the shoulder 111. The outer contour of the second protrusion 15 does not exceed the outer contour of the first protrusion 14, avoiding interference with the through hole 121 of the limiting member 12 during installation. In this case, the orthographic projection of the through hole 121 along the axial direction only needs to cover the orthographic projection of the first protrusion 14 along the axial direction. The through hole 121 does not need to undergo complex shaping and processing, reducing the processing difficulty. The end face of the limiting member 12 away from the shoulder 111 directly serves as the reference surface for axial limiting. When the elastic member 13 drives the pin 11 to retract, the first protrusion 14 abuts against the first limiting surface on the end face, preventing the pin 11 from moving further axially. Using this design where the limiting surface is directly formed by the end face of the limiting member 12, no additional processing is required, and a larger contact area is provided, enhancing the stability of axial limiting. The groove on the inner wall of the through hole 121 is connected to the first limiting surface, that is, the first limiting surface is distributed on the outer periphery of the groove opening. When the pin 11 rotates at a set angle, the second protrusion 15 falls into the groove to achieve circumferential locking and prevent the pin 11 from rotating relative to the limiting member 12. At the same time as the second protrusion 15 is engaged, the first protrusion 14 also presses against the first limiting surface. In other words, the circumferential limiting fit can be regarded as the positioning reference of the axial limiting fit, eliminating the need for two positioning operations, reducing the assembly difficulty, and thus further improving the assembly efficiency.

[0067] Furthermore, the first mating part 122 is formed by the end face of the limiting member 12, and the second mating part 123 is directly opened on the wall of the through hole 121. These structures are relatively simple. Compared with some complex mating structures, they have lower requirements for processing technology and equipment during the manufacturing process. They do not require special processing methods and high-precision processing equipment, thereby reducing production and processing costs.

[0068] It should be noted that in some other embodiments, the second protrusion 15 may also protrude outward and connect to the side wall of the first protrusion 14. In this case, the through hole 121 on the limiting member 12 needs to be designed to match the outer contour of the combination of the first protrusion 14 and the second protrusion 15.

[0069] In some embodiments, as Figure 1 , Figure 2 and Figure 5As shown, the outer contour of the through hole 121 is set in the same shape as the outer contour of the first protrusion 14, and the outer side wall of the first protrusion 14 includes a first plane 141, a first arc surface 142, a second plane 143 and a second arc surface 144 connected end to end. The curvature centers of the first arc surface 142 and the second arc surface 144 are both located inside the first protrusion 14. The second protrusion 15 is distributed on the end face of the first protrusion 14 near the edge of the first arc surface 142 and / or the second arc surface 144.

[0070] In this embodiment, the shape and dimensions of the through hole 121 are consistent with the cross-sectional shape and dimensions of the first protrusion 14, and it is not circular. Specifically, the outer wall of the first protrusion 14 is composed of four continuous boundary segments, namely, a first plane 141, a first arc surface 142, a second plane 143, and a second arc surface 144. Since the curvature centers of the first arc surface 142 and the second arc surface 144 are both inside the protrusion, the first arc surface 142 and the second arc surface 144 are both outwardly convex surfaces, not inwardly convex surfaces. Thus, the outer wall of the first protrusion 14 can be approximately elliptical, waist-shaped, or oval, for example, as shown in the figure. Figure 1 , Figure 2 and Figure 5 As shown, the cross-sectional shape of the first protrusion 14 is approximately waist-shaped. During processing, a portion of each of the opposite sides of the cylindrical structure can be directly removed. The two cut surfaces formed after cutting are the first plane 141 and the second plane 143. The uncut areas are the first arc surface 142 and the second arc surface 144. The curvatures of the first arc surface 142 and the second arc surface 144 are equal.

[0071] The second protrusion 15 is offset from the first plane 141 and the second plane 143. One or more second protrusions 15 can be provided, with multiple meanings representing two or more. Multiple second protrusions 15 are respectively distributed on the end face of the first protrusion 14 near the edge of the first arc surface 142 and / or the second arc surface 144.

[0072] For example, such as Figure 5 and Figure 6 As shown, two second protrusions 15 can be symmetrically arranged. The outer walls of the two second protrusions 15 smoothly transition with the first arc surface 142 and the second arc surface 144, respectively. In other words, no step structure is formed between the second protrusion 15 and the corresponding first arc surface 142 or second arc surface 144.

[0073] The shape of the second protrusion 15 may include, but is not limited to, a cube, a cylinder, a semi-cylinder, or a prism, etc., and the embodiments of this application do not limit this.

[0074] In other embodiments, the cross-sectional shape of the first protrusion 14 may also be designed as a polygon.

[0075] The connection structure 10 provided in this application embodiment, through the shape design of the first protrusion 14 and the through hole 121, combined with the layout of the second protrusion 15, ensures that the pin 11 can only be inserted into the through hole 121 at a unique angle. If the angle is not aligned, it cannot pass through, thus achieving anti-misassembly and unique positioning, reducing the risk of locking failure caused by incorrect angle installation. At the same time, the first arc surface 142 and the second arc surface 144 are designed as convex arc surfaces, so that the first arc surface 142 and the second arc surface 144 form rolling contact with the hole wall of the through hole 121 during rotation, reducing frictional resistance, alleviating local stress peaks, thereby further improving assembly efficiency and reducing the risk of jamming.

[0076] In some embodiments, as Figure 6 As shown, the second protrusion 15 is provided with a guide slope 151 for engaging with the groove.

[0077] In this embodiment, such as Figure 6 As shown, the guide slope 151 can be set at a position near the edge of the second protrusion 15 and form a certain angle with the end face and side face of the second protrusion 15 to achieve the best guiding effect. The guide slope 151 is inclined outward from the end near the elastic member 13 to the end away from the elastic member 13.

[0078] The connection structure 10 provided in this application embodiment, through the setting of the above-mentioned guide slope 151, when the guide slope 151 contacts the edge of the groove during rotation, automatically corrects the position deviation through the slope sliding effect. The axial driving force of the elastic element 13 assists the slope to slide in along the edge of the groove, allowing the second protrusion 15 to lock smoothly even when there is a certain position deviation between it and the groove, reducing jamming caused by hard collision, thereby greatly improving the assembly tolerance. Especially in the scenario where the operating field of vision is limited, the addition of the guide slope 151 just compensates for the centering difficulty caused by visual obstruction, further improving the assembly efficiency.

[0079] In some embodiments, as Figure 5 As shown, the pin 11 is an integral structure with the first protrusion 14 and the second protrusion 15.

[0080] Specifically, the pin 11, the first protrusion 14, and the second protrusion 15 are integrally formed from the same material without separate connection methods such as welding or bolts. The pin 11, the first protrusion 14, and the second protrusion 15 can be integrally formed by processes such as forging, casting, or CNC cutting. This application embodiment does not limit this.

[0081] Understandably, on the one hand, the integrated structure avoids the stress concentration problem caused by component splicing. In nuclear fusion engineering, the connecting structure 10 is subject to complex working conditions such as high temperature, vibration, and pressure. Traditional spliced ​​structures are prone to cracks and loosening at the joints. The integrated structure can distribute the load more evenly when under stress, reducing the risk of structural damage, significantly improving the overall strength and reliability of the connecting structure 10, ensuring the stability of pipeline and line connections in the nuclear fusion device, and reducing safety hazards caused by the failure of the connecting structure 10. On the other hand, it eliminates the need to process and assemble multiple independent components, reducing production steps. Compared to processing the pin 11, the first protrusion 14, and the second protrusion 15 separately and then connecting them by welding or other means, the integrated manufacturing process shortens the production cycle and reduces the difficulty of production management. During assembly, there is no need to spend a lot of manpower to adjust the relative positions and fitting accuracy between the components. The integrated pin 11 can be directly inserted through the connecting object and the limiting component 12, simplifying the assembly process, improving production and installation efficiency, and thus reducing production costs. On the other hand, the absence of seams makes the connection structure 10 more stable when facing changes in the external environment. In the vacuum environment of the nuclear fusion device, the integrated structure can better prevent gas leakage, improve the sealing of the device, maintain the stability of the internal environment, and at the same time reduce the possibility of dust and impurities entering the connection structure 10 due to gaps, reduce the risk of component wear and failure caused by impurities, and extend the service life of the connection structure 10.

[0082] The embodiments of this application will be described in detail below from two different implementation perspectives.

[0083] I. In some embodiments, such as Figure 7 As shown, the multiple connected objects are divided into a first part 20a and a second part 20b; wherein, a first clamping space 101 is formed between the shoulder 111 and the elastic member 13, and the first clamping space 101 is used to accommodate the stacked first part 20a and second part 20b.

[0084] In this embodiment, such as Figure 7 As shown, the first part 20a and the second part 20b are stacked in the first clamping space 101. The first part 20a abuts against the shoulder 111, and the second part 20b abuts against the end of the elastic member 13. The rod portion 112 of the pin 11 passes through the mounting holes of the first part 20a and the second part 20b. The shape and size of the mounting holes can be designed to match the shape and size of the rod portion 112. Through the cooperation between the limiting member 12 and the pin 11, and the elastic force provided by the elastic member 13, the shoulder 111 and the limiting member 12 apply pressure to the stacked first part 20a and the second part 20b from both sides, thereby tightly clamping and fixing the first part 20a and the second part 20b in the first clamping space 101.

[0085] Using the first connection layout design described above, the first clamping space 101 tightly fixes the stacked first part 20a and second part 20b through the rigid support of the shoulder 111 and the dynamic pre-tightening force of the elastic element 13. The compression characteristics of the elastic element 13 can absorb vibration energy and reduce the displacement or delamination of the stacked parts caused by vibration. It is especially suitable for connection scenarios where multiple plates are fastened together.

[0086] II. In some embodiments, such as Figure 8 As shown, the multiple connected objects are divided into a first part 20a and a second part 20b; wherein, a second clamping space 102 is formed between the elastic member 13 and the limiting member 12, and the second clamping space 102 is used to accommodate the stacked first part 20a and second part 20b.

[0087] In this embodiment, such as Figure 8 As shown, the first part 20a and the second part 20b are stacked in the second clamping space 102. The first part 20a abuts against the end of the elastic member 13, and the second part 20b abuts against the limiting member 12. The rod portion 112 of the pin 11 passes through the mounting holes of the first part 20a and the second part 20b. The shape and size of the mounting holes can be designed to match the shape and size of the rod portion 112. Through the cooperation between the limiting member 12 and the pin 11, and the elastic force provided by the elastic member 13, the shoulder 111 and the limiting member 12 apply pressure to the stacked first part 20a and the second part 20b from both sides, thereby tightly clamping and fixing the first part 20a and the second part 20b in the second clamping space 102.

[0088] Using the second connection layout design described above, the second clamping space 102 tightly fixes the stacked first part 20a and second part 20b by the rigid support of the limiting member 12 and the dynamic pre-tightening force of the elastic member 13. The compression characteristics of the elastic member 13 can absorb vibration energy and reduce the displacement or delamination of the stacked parts caused by vibration. It is especially suitable for connection scenarios where multiple plates are fastened together.

[0089] III. In some embodiments, such as Figure 9 As shown, the multiple connected objects are divided into a first part 20a and a second part 20b; wherein, a third clamping space 103 is formed between the shoulder 111 and the elastic member 13, the third clamping space 103 is used to accommodate the first part 20a, and a fourth clamping space 104 is formed between the elastic member 13 and the limiting member 12, the fourth clamping space 104 is used to accommodate the second part 20b.

[0090] In this embodiment, such as Figure 9As shown, the two ends of the elastic member 13 are spaced apart from the shoulder 111 and the limiting member 12, respectively, to form the third clamping space 103 and the fourth clamping space 104. The first part 20a and the second part 20b are installed separately. The rod portion 112 of the pin 11 passes through the mounting holes of the first part 20a and the second part 20b. The shape and size of the mounting holes can be designed to match the shape and size of the rod portion 112. The shoulder 111 and the elastic member 13 apply pressure to the first part 20a from both sides, thereby tightly clamping and fixing the first part 20a in the third clamping space 103. The limiting member 12 and the elastic member 13 apply pressure to the second part 20b from both sides, thereby tightly clamping and fixing the second part 20b in the fourth clamping space 104.

[0091] Using the third connection layout design described above, the third clamping space 103 secures the first part 20a tightly through the rigid support of the shoulder 111 and the dynamic preload of the elastic element 13. The fourth clamping space 104 secures the second part 20b tightly through the rigid support of the limiting member 12 and the dynamic preload of the elastic element 13. This design is particularly suitable for connection scenarios where the thermal expansion coefficients and / or natural frequencies of multiple connected objects differ significantly. The elastic element 13 acts as a thermal deformation absorption medium. When the expansion amounts of the first part 20a and the second part 20b differ, the elastic element 13 compresses / releases to adjust the space volume. When the natural frequencies of the first part 20a and the second part 20b are different, the high-frequency vibrations of the first part 20a are damped and isolated by the elastic element 13, and less of them are transmitted to the second part 20b, thus preventing resonance.

[0092] IV. In some embodiments, such as Figure 10 As shown, the multiple connected objects are divided into a first part 20a and a second part 20b; wherein, a fifth clamping space 105 is formed between the shoulder 111 and the elastic member 13, the fifth clamping space 105 is used to accommodate the first part 20a, and the end of the limiting member 12 facing away from the elastic member 13 is used to fix the second part 20b.

[0093] In this embodiment, such as Figure 10 As shown, the first part 20a and the second part 20b are installed separately. The rod portion 112 of the pin 11 passes through the mounting hole of the first part 20a. The shape and size of the mounting hole of the first part 20a can be designed to match the shape and size of the rod portion 112. The first protrusion 14 passes through the mounting hole of the second part 20b. During assembly, the mounting hole of the second part 20b only serves to avoid the first protrusion 14 and the second protrusion 15. The limiting member 12 can be pre-fixed to the second part 20b by means of snap-fit, welding, integral molding, etc. The shoulder 111 and the elastic member 13 apply pressure to the first part 20a from both sides, thereby tightly clamping and fixing the first part 20a in the fifth clamping space 105.

[0094] Using the fourth connection layout design described above, the fifth clamping space 105 secures the first part 20a tightly through the rigid support of the shoulder 111 and the dynamic pre-tightening force of the elastic element 13. The limiting member 12 can be pre-installed into the second part 20b as a unified connection interface during the production and processing stage, reducing on-site assembly time and further improving assembly efficiency. Especially in nuclear fusion devices that require a large number of connection structures 10, the pre-installed interface can standardize the process and reduce errors.

[0095] V. In some embodiments, such as Figure 11 As shown, the multiple connected objects are divided into a first part 20a and a second part 20b; wherein, a sixth clamping space 106 is formed between the elastic member 13 and the limiting member 12, the sixth clamping space 106 is used to accommodate the first part 20a, and the end of the limiting member 12 facing away from the elastic member 13 is used to fix the second part 20b.

[0096] In this embodiment, such as Figure 11 As shown, the first part 20a and the second part 20b are installed separately. The rod portion 112 of the pin 11 passes through the mounting hole of the first part 20a. The shape and size of the mounting hole of the first part 20a can be designed to match the shape and size of the rod portion 112. The first protrusion 14 passes through the mounting hole of the second part 20b. During assembly, the mounting hole of the second part 20b only serves to avoid the first protrusion 14 and the second protrusion 15. The limiting member 12 can be pre-fixed to the second part 20b by means of snap-fit, welding, integral molding, etc. The limiting member 12 and the elastic member 13 apply pressure to the first part 20a from both sides, thereby tightly clamping and fixing the first part 20a in the sixth clamping space 106.

[0097] Using the fifth connection layout design described above, the sixth clamping space 106 secures the first part 20a tightly through the rigid support of the limiting member 12 and the dynamic pre-tightening force of the elastic member 13. The limiting member 12 can be pre-installed into the second part 20b during the production and processing stage as a unified connection interface, reducing on-site assembly time and further improving assembly efficiency. Especially in nuclear fusion devices that require a large number of connection structures 10, the pre-installed interface can standardize the process and reduce errors.

[0098] This application also discloses a nuclear fusion device.

[0099] In some embodiments, the nuclear fusion device includes: a support, a support arm, cables, and a connection structure 10 as described in any of the above embodiments.

[0100] Multiple connected objects include brackets and supports, which are connected by a connecting structure 10 to form a channel; cables are laid in the channel.

[0101] It should be noted that in nuclear fusion devices, various cryogenic pumps, molecular pumps, valves, and other equipment require related power cables, instrumentation cables, and communication cables to ensure the normal operation of the equipment. All cables need to be laid along relevant cable trays, which are composed of the aforementioned supports, brackets, and connecting structure 10. Therefore, during the laying of various cables, the cables need to be fixed in the channels of the cable tray. Due to the limited space in the cable tray and the large number of cables to be laid, the connecting structure 10 provided in this embodiment can quickly fix the cables without the need for other tools, and has less restriction on the operating space.

[0102] In other embodiments, the multiple connection objects may also include supports and clamps, and the nuclear fusion device may also include pipes. The supports and clamps may be connected by the connection structure 10 to clamp the pipes.

[0103] The nuclear fusion device provided in this application embodiment, through the aforementioned connection structure 10, enables rapid installation and disassembly of the connected objects. On the one hand, compared to welding, it increases the sustainability and maintainability of the connection structure 10. During the maintenance of the nuclear fusion device, faulty pipes or lines can be quickly disassembled for repair or replacement, thereby greatly shortening the maintenance time. On the other hand, compared to threaded connections, it eliminates the tedious process of multiple rotations and tightening, thereby significantly improving installation efficiency. In large-scale pipeline installation projects, it can significantly shorten the construction cycle and avoid problems such as thread wear and stripping under long-term use, thereby reducing maintenance frequency and extending the service life of the connection structure 10. Furthermore, the elastic element 13 can absorb some energy during vibration, reducing the impact of vibration on the connection interface, thereby significantly reducing the risk of pipeline loosening and detachment. Moreover, the structure is simple, the components are standardized, the manufacturing cost is low, and it can adapt to various connected objects of different sizes and scenarios, thereby increasing the usability and compatibility of the connection structure 10, which is conducive to large-scale promotion and use.

[0104] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0105] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0106] In the description of this application, "first feature" and "second feature" may include one or more of the features.

[0107] In the description of this application, "multiple" means two or more.

[0108] In the description of this application, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or it may include the first and second features not being in direct contact but being in contact through another feature between them.

[0109] In the description of this application, the terms "above," "over," and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a higher horizontal level than the second feature.

[0110] Other configurations of the embodiments of this application, such as ... and ..., and operations, are known to those skilled in the art and will not be described in detail here.

[0111] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0112] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A connection structure for connecting a plurality of connection objects having mounting holes, characterized in that, include: A pin includes a connected shoulder and a rod portion, the rod portion being used to pass through the mounting holes of the plurality of connected objects, and having a first protrusion and a second protrusion adapted to be spaced apart from the shoulder, the second protrusion being connected to the end of the first protrusion near the shoulder, and the second protrusion not protruding outward from the first protrusion; A limiting member, locked with the pin to securely install the plurality of connected objects, is provided with a first mating part and a second mating part, and forms a through hole; An elastic element is sleeved on the outside of the rod portion; wherein, the first protrusion and the second protrusion are configured to pass through the through hole in a direction away from the shoulder and then rotate around the axis by a set angle so that the first protrusion and the first mating portion are axially opposite each other, and the second protrusion and the second mating portion are axially opposite each other. The elastic element is configured to drive the rod portion to move toward the shoulder so that the first protrusion and the first mating portion are axially limited and engaged along the pin, and the second protrusion and the second mating portion are circumferentially limited and engaged along the pin. The first mating portion includes a first limiting surface formed by the end face of the limiting member away from the shoulder, and the first protrusion abuts against the first limiting surface. The second mating portion includes a groove formed in the wall of the through hole, the first limiting surface is adjacent to the groove, the first limiting surface is distributed on the outer periphery of the groove opening, and the second protrusion locks with the groove.

2. The connection structure according to claim 1, characterized in that, The outer contour of the through hole is conformed to the outer contour of the first protrusion, and the outer wall of the first protrusion includes a first plane, a first arc surface, a second plane and a second arc surface connected end to end. The curvature centers of the first arc surface and the second arc surface are both located inside the first protrusion. The second protrusion is distributed on the end face of the first protrusion near the edge of the first arc surface and / or the second arc surface.

3. The connection structure according to claim 1, characterized in that, The second protrusion is provided with a guide slope for engaging with the groove.

4. The connection structure according to claim 1, characterized in that, The pin is an integral structure with the first protrusion and the second protrusion.

5. The connection structure according to any one of claims 1-4, characterized in that, The multiple connection objects are divided into a first part and a second part; wherein... A first clamping space is formed between the shoulder and the elastic member, the first clamping space being used to accommodate the stacked first portion and the second portion.

6. The connection structure according to any one of claims 1-4, characterized in that, The multiple connection objects are divided into a first part and a second part; wherein... A second clamping space is formed between the elastic member and the limiting member, the second clamping space being used to accommodate the stacked first part and the second part.

7. The connection structure according to any one of claims 1-4, characterized in that, The multiple connection objects are divided into a first part and a second part; wherein... A third clamping space is formed between the shoulder and the elastic member, the third clamping space being used to accommodate the first part, and a fourth clamping space is formed between the elastic member and the limiting member, the fourth clamping space being used to accommodate the second part.

8. The connection structure according to any one of claims 1-4, characterized in that, The multiple connection objects are divided into a first part and a second part; wherein... A fifth clamping space is formed between the shoulder and the elastic member, the fifth clamping space is used to accommodate the first part, and the end of the limiting member facing away from the elastic member is used to fix the second part; or, A sixth clamping space is formed between the elastic member and the limiting member. The sixth clamping space is used to accommodate the first part, and the end of the limiting member opposite to the elastic member is used to fix the second part.

9. A nuclear fusion device, characterized in that, include: The connection structure as described in any one of claims 1-8; The bracket and the support arm, wherein the plurality of connected objects include the bracket and the support arm, the bracket and the support arm being connected by the connecting structure to form a channel; Cables are laid in the channel.

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