A telescopic node base

Abstract

The present invention relates to the technical field of servers. The present invention provides a scalable node base, which includes a base component, a board card is fixed to the base component, and further includes a telescopic component and a limiting component. The base component includes a base, and sliding grooves are symmetrically arranged at opposite ends of the base. Limiting grooves are formed on the side walls of the sliding grooves. The telescopic component includes an extension plate, and telescopic parts are symmetrically arranged at opposite ends of the extension plate. The two telescopic parts are respectively inserted into the two sliding grooves, and the limiting component is fixed to the telescopic part through the limiting groove, and the telescopic component can slide along the sliding groove and drive the limiting component to move in the limiting groove. The present invention can meet the protection requirements of the high-density connectors of the board card in the external scenario of the chassis, improve the reliability of the product; when the node is unlocked and pulled out, the elastic force of the telescopic component is used to assist the node to pop out, enhancing the customer experience; by setting a guide post to assist the spring in guiding, the guiding problem of the spring and the problems of the spring bending or falling off can be solved, ensuring the operation reliability of the scalable node base.

Description

Technical Field

[0001] The present invention relates to the technical field of servers, and particularly relates to a scalable node base. Background Art

[0002] As a node of the network, a server can store and process 80% of the data and information on the network. Therefore, it is also called the soul of the network. For network terminal devices such as home and enterprise microcomputers to access the Internet, obtain information, communicate with the outside world, and entertain, etc., they must also go through a computer server. Therefore, it can be said that the computer server is "organizing" and "leading" these devices.

[0003] In recent years, with the continuous development of big data technology and cloud computing technology, the demand for server system resources has increased accordingly. Processor suppliers have achieved the overall upgrade of system resources by means of improving the computing power of processors and upgrading multi-processor platforms, greatly improving the data processing ability of the entire system. Therefore, high-performance storage and servers are widely demanded. Ultra-high-performance servers, supercomputers, industrial computers, and high-end storage devices often use high-density connectors for high-speed signal interconnection between boards. Therefore, the use of high-density connectors is also increasing.

[0004] As shown in Figure 1 to Figure 2 shown, generally speaking, usually a screw 102 is used to fix the board 1 on the nut 201 of the node base 200. When inside the chassis, due to the limitation of the architecture space (i.e., the existence of the middle bracket 101) and the reason of male-female plugging of high-density connectors, the sheet metal of the node base 200 cannot completely wrap the high-density connector. Therefore, when the node is assembled and maintained in scenarios outside the chassis, the node base 200 cannot provide sufficient protection for the high-density connector on the board 1. Summary of the Invention

[0005] Aiming at the problems that the node base cannot provide sufficient protection for the high-density connector on the board in scenarios outside the chassis such as during the assembly process and maintenance of the node, the present invention proposes a scalable node base. The scalable node base can meet the protection requirements of the high-density connector of the board in scenarios outside the chassis, enabling the node base to freely switch between two states inside and outside the chassis, and improving the reliability of the product.

[0006] The present invention provides a telescopic node base, which includes a base component, a board card is fixed to the base component, and further includes a telescopic component and a limiting member. The base component includes a base body, and sliding grooves are symmetrically arranged at two opposite ends of the base body. Limiting grooves are formed on the side walls of the sliding grooves. The telescopic component includes an extension plate, and telescopic parts are symmetrically arranged at two opposite ends of the extension plate. The two telescopic parts are respectively inserted into the two sliding grooves. The limiting member is fixed to the telescopic part through the limiting groove, and the telescopic component can slide along the sliding groove and drive the limiting member to move in the limiting groove. After the telescopic component is inserted into the base component of the node base, it is not fixed. Under the action of the limiting groove on the sliding groove and the limiting member, the telescopic component can telescopically within a certain range in the base component of the node base. Therefore, when the node is inserted into the chassis, the telescopic component is compressed, so as to ensure the butt-joint of the high-density connectors; when the node is pulled out of the chassis, after the telescopic component pops out of the base component of the node base, the extension plate lengthens the node base, and the sheet metal can protect the high-density connectors of the board card, thus avoiding the risk of collision.

[0007] Preferably, the telescopic part includes an extension bar and a slide rail. The extension bar is fixed to both ends of the extension plate. The slide rail is fixed to the extension bar and symmetrically arranged at both ends of the extension plate. The slide rail is inserted into the sliding groove, and the limiting member is fixed to the slide rail through the limiting groove. The slide rail can facilitate the insertion of the telescopic part into the sliding groove.

[0008] Preferably, the telescopic part further includes a guide post and an elastic member. One end of the guide post is fixed to the bottom of the slide rail, and the extending direction of the guide post is the same as that of the slide rail. The elastic member is sleeved on the guide post. A limiting plate is arranged in the sliding groove, and a slot hole is formed on the limiting plate. The guide post is inserted into the sliding groove, and the end of the guide post passes through the slot hole. Under the blocking of the limiting plate, the elastic member is in a compressed state. When the node is in the chassis, the elastic member is always in a compressed state. When the node is unlocked, since the elastic member changes from the compressed state to the normal state, the telescopic part slides outwards from the sliding groove for a certain distance until the limiting member abuts against the outer end of the limiting groove, and the telescopic part stops sliding. The pressure of the telescopic component is released, which can assist in pulling out the node. Therefore, the existence of the elastic member can improve the user experience. And by setting the guide post and sleeving the elastic member on the guide post, the guide post can play a role in guiding the elastic member, which can solve the guiding problem of the elastic member during compression and extension and the problem of easy bending or falling off of the elastic member, and ensure the operation reliability of the telescopic node base.

[0009] Preferably, a sliding ring is further sleeved outside the guiding column. A circumferential step structure is provided at the end of the guiding column. Under the elastic force of the elastic member, the sliding ring can abut against the step structure. When the telescopic part is inserted into the sliding groove, the sliding ring can abut against the limiting plate to compress the elastic member. During the assembly process, it is necessary to first sleeve the elastic member onto the guiding column. Due to the elasticity and stretchability of the elastic member, the installation is inconvenient. By providing the sliding ring and the step structure, the sliding ring can be first sleeved onto the guiding column during installation, then the elastic member is sleeved onto the guiding column, and finally the guiding column is screwed onto the sliding rail. At this time, blocked by the sliding ring and the step structure, the elastic member is installed between the sliding ring and the sliding rail and does not have excessive mobility due to the elastic force. Therefore, the installation difficulty of the spring is reduced, facilitating the installation of the telescopic assembly.

[0010] Preferably, an extension plate connecting portion is provided on one side of the extension plate close to the base body, and a convex groove is provided on one side of the base body close to the extension plate. The extension plate connecting portion can extend into the convex groove. When the node is inside the chassis, the extension plate connecting portion extends into the convex groove, and the extension plate will not hinder or affect the movement of the telescopic assembly; when the node is pulled out of the chassis, the extension plate connecting portion will also extend out of the convex groove accordingly, achieving the effect of lengthening the node base. Therefore, the sheet metal can protect the high-density connector of the board card, thus avoiding the risk of collision.

[0011] Preferably, a threaded hole is provided at the bottom of the sliding rail, and an external thread is provided at the end of the guiding column. The guiding column is inserted into the threaded hole and is threadedly fixed to the sliding rail. This is a connection method between the sliding rail and the guiding column. Threaded connection is relatively common and has the advantages of being easy to process, easy to assemble, and having high reliability.

[0012] Preferably, the elastic member is provided as a spring. The spring is a relatively commonly used elastic member, which is easy to obtain, has good stability, and low cost. According to the characteristic that the elastic member has an outward elastic force when compressed, a compression spring needs to be selected for the spring.

[0013] Preferably, the sliding groove is fixed to the inner side of the base body by a rivet. The fixing method by rivet is relatively stable.

[0014] Preferably, a high-density connector female head is fixed to the board card, and a high-density connector male head is provided inside the chassis. When the telescopic node base is inside the chassis, the high-density connector female head is inserted into the high-density connector male head.

[0015] Preferably, when the telescopic node base is inside the chassis, the extension plate connecting portion extends into the convex groove; when the telescopic node base is outside the chassis, the extension plate connecting portion is outside the convex groove.

[0016] When installing the telescopic node base, first, the elastic member and the slip ring are sleeved on the guide post and fixed in the threaded holes on the slide rail with threads. The slip ring can slide freely on the guide post and, under the elastic force of the elastic member, the slip ring abuts against the stepped structure. The slide rail is fixed on the extension bar and fixed with screws. In this way, the telescopic assembly is assembled. Secondly, the telescopic assembly is inserted into the base assembly of the node base. The slide rail is inserted into the chute on the side wall, the guide post passes through the slot hole, the slip ring abuts against the limiting plate, and the elastic member is compressed. After inserting a certain distance, a limiting member passes through the limiting groove and is fixed on the slide rail. At this time, the assembly is completed, and the telescopic assembly can telescopically within a certain range in the base assembly of the node base.

[0017] The free conversion of the telescopic node base inside and outside the chassis includes the following two states: When the node is inserted into the chassis, the extension bar of the node base abuts against the middle bracket. The telescopic assembly is compressed, the connecting part of the extension plate is hidden in the convex groove, and the male high-density connector on the board is exposed to ensure the butt-joint of the high-density connector; when the node is unlocked, the pressure of the telescopic assembly is released, and the auxiliary node is pulled out. After the telescopic assembly pops out of the base assembly of the node base, the extension plate lengthens the node base, and the sheet metal can protect the high-density connector of the board, thus avoiding the risk of collision.

[0018] The beneficial effects of the present invention are as follows:

[0019] 1. By setting the telescopic node base, the present invention can meet the protection requirements of the high-density connector of the board in the external scenario of the chassis and improve the reliability of the product.

[0020] 2. By setting the freely telescopic node base, the present invention enables the node base to freely convert between two states inside and outside the chassis.

[0021] 3. When the node is unlocked and pulled out, the elastic force of the telescopic assembly helps the node to pop out, enhancing the customer experience.

[0022] 4. By setting the guide post to assist in guiding the spring, the present invention can solve the problems of spring guiding, spring bending or falling off, and ensure the operation reliability of the telescopic node base.

[0023] 5. By setting the slip ring, the present invention reduces the difficulty of spring installation and facilitates the installation of the telescopic assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the present invention, the drawings required for description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0025] Figure 1 It is a schematic cross-sectional view of the node inside the chassis.

[0026] Figure 2 It is a schematic view of the node outside the chassis.

[0027] Figure 3 It is a schematic structural diagram of the retractable node base described in the present invention.

[0028] Figure 4 It is a three-dimensional structural diagram of the base component in the retractable node base described in the present invention.

[0029] Figure 5 It is a three-dimensional structural diagram of the telescopic component in the retractable node base described in the present invention.

[0030] Figure 6 It is a schematic view of the retractable node base described in the present invention outside the chassis.

[0031] In the figure: 1. Circuit board, 2. Base component, 3. Telescopic component, 4. Limiting part, 5. Base body, 6. Sliding groove, 7. Limiting groove, 8. Extension plate, 9. Telescopic part, 10. Extension bar, 11. Slide rail, 12. Guide post, 13. Elastic part, 14. Limiting plate, 15. Slot hole, 16. Threaded hole, 17. Outer peripheral thread, 18. Slip ring, 19. Step structure, 20. Female high-density connector, 21. Male high-density connector, 22. Extension plate connection part, 23. Convex groove, 100. Chassis, 101. Intermediate bracket, 102. Screw, 200. Node base, 201. Nut. Detailed implementation manners

[0032] To make the objectives, features, and advantages of the present invention more obvious and understandable, the technical solutions in the present invention will be clearly and completely described below in conjunction with the drawings in the specific embodiments of the present invention. Obviously, the embodiments described below are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments in this patent, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of this patent.

[0033] As Figures 1 to 2 shown, generally speaking, the circuit board 1 is usually fixed to the nut 201 of the node base 200 by screws 102. When inside the chassis 100, due to the limitation of the architecture space (i.e., the existence of the intermediate bracket 101) and the mating of the female high-density connector 20 and the male high-density connector 21, the sheet metal of the node base 200 cannot completely wrap the high-density connector. Therefore, when the node is in scenarios outside the chassis 100 such as the assembly process and operation and maintenance, the node base 200 cannot provide sufficient protection for the high-density connector on the circuit board 1, and it is easy to cause damage to the high-density connector.

[0034] As Figures 3 to 6 shown, based on the above problems, in this embodiment, the present invention proposes a scalable node base including a base component. A board card 1 is fixed to the base component 2, and further includes a telescopic component 3 and a limiting member 4. The base component includes a base 5. Sliding grooves 6 are symmetrically arranged at opposite ends of the base 5. The sliding grooves 6 can be fixed to the inner side of the base 5 by rivets. Limiting grooves 7 are provided on the side walls of the sliding grooves 6. The telescopic component 3 includes an extension plate 8. Telescopic parts 9 are symmetrically arranged at opposite ends of the extension plate 8. The two telescopic parts 9 are respectively inserted into the two sliding grooves 6. The limiting member 4 is fixed to the telescopic part 9 through the limiting groove 7, and the telescopic component 3 can slide along the sliding groove 6 and drive the limiting member 4 to move in the limiting groove 7. After the telescopic component 3 is inserted into the base component 2 of the node base 200, it is not fixed. Under the action of the limiting groove 7 on the sliding groove 6 and the limiting member 4, the telescopic component 3 can telescopically within a certain range in the base component 2 of the node base 200. Therefore, when the node is inserted into the chassis 100, the telescopic component is compressed, so as to ensure the butt-joint of the high-density connectors; when the node is withdrawn from the chassis 100, after the telescopic component 3 pops out of the base component 2 of the node base 200, the extension plate 8 lengthens the node base 200, and the sheet metal can protect the high-density connectors of the board card 1, thereby avoiding the risk of collision. Among them, as Figure 5As shown in the figure, the telescopic part 9 includes an extension bar 10, a slide rail 11, a guide post 12 and an elastic member 13. The extension bar 10 is fixed to both ends of the extension plate 8. The slide rail 11 is fixed to the extension bar 10 and symmetrically arranged at both ends of the extension plate 8. The slide rail 11 is inserted into the chute 6, and the limiting member 4 is fixed to the slide rail 11 through the limiting groove 7. Among them, the slide rail 11 facilitates the insertion of the telescopic part 9 into the chute 6. One end of the guide post 12 is fixed to the bottom of the slide rail 11, and the extending direction of the guide post 12 is the same as that of the slide rail 11. The elastic member 13 is sleeved on the guide post 12. A limiting plate 14 is arranged in the chute 6. The limiting plate 14 is provided with a slot hole 15. The guide post is inserted into the chute 6, and the end of the guide post 12 passes through the slot hole 15. Under the blockage of the limiting plate 14, the elastic member 13 is in a compressed state. When the node is inside the chassis 100, the elastic member 13 is always in a compressed state. When the node is unlocked, since the elastic member 13 changes from the compressed state to the normal state, the telescopic part 9 slides outwards from the chute 6 for a certain distance until the limiting member 4 abuts against the outer end of the limiting groove 7, and the telescopic part 9 stops sliding. The pressure of the telescopic assembly 3 is released, which can assist in pulling out the node. Therefore, the presence of the elastic member 13 can improve the user experience. And by setting the guide post 12 and sleeving the elastic member 13 on the guide post 12, the guide post 12 can play a role in assisting the guiding of the elastic member 13, which can solve the guiding problem of the elastic member 13 during the compression and extension processes and the problem of easy bending or falling off of the elastic member 13, and ensure the operation reliability of the telescopic node base. In this embodiment, a threaded hole 16 is opened at the bottom of the slide rail 11, and an external thread 17 is provided at the end of the guide post 12. The guide post 12 is inserted into the threaded hole 16 and is thread-fixed to the slide rail 11.

[0035] In another embodiment, one end of the guide post 12 is fixed to the bottom of the slide rail 11, and the extending direction of the guide post 12 is the same as that of the slide rail 11. The difference lies in the fixing method between the guide post 12 and the slide rail 11. In this embodiment, the end of the guide post 12 is directly integrally formed with the slide rail 11.

[0036] In still another embodiment, one end of the guide post 12 is fixed to the bottom of the slide rail 11, and the extending direction of the guide post 12 is the same as that of the slide rail 11. The difference lies in the fixing method between the guide post 12 and the slide rail 11. In this embodiment, a mounting hole is opened on the slide rail 11, and the end of the guide post 12 extends into the mounting hole and is in interference fit with the mounting hole. Of course, other connection methods can also be adopted between the guide post 12 and the slide rail 11, and the present application does not limit this. And in this embodiment, the elastic member 13 adopts a spring. The spring is a relatively common elastic member, which is easy to obtain, has good stability and low cost. According to the characteristic that the elastic member has an outward elastic force when compressed, a compression spring needs to be selected for the spring.

[0037] In this embodiment, the limiting member 4 can use components such as screws. Of course, in addition to screws, other easily obtainable components can also be selected, and the present application does not make specific limitations here.

[0038] For the convenience of installing the spring, as Figure 5 shown, a sliding ring 18 is also sleeved outside the guiding column 12, and an annular stepped structure 19 is arranged at the end of the guiding column 12. Under the elastic force of the elastic member 13, the sliding ring 18 can abut against the stepped structure 19, and when the telescopic part 8 is inserted into the sliding groove 6, the sliding ring 18 can abut against the limiting plate 14 so as to compress the elastic member 13. With the limitation of the elastic member 13 by the sliding ring, the elastic member can be more convenient during the installation process. Specifically, when installing the telescopic assembly, first, the elastic member 13 and the sliding ring 18 are sleeved on the guiding column 12 and fixed in the threaded hole 16 on the slide rail 11 with threads. The sliding ring 18 can slide freely on the guiding column 12. Under the elastic force of the elastic member 13, the sliding ring 18 abuts against the stepped structure 19. The slide rail 11 is fixed on the extension bar 10 and fixed with screws. In this way, the telescopic assembly 3 is assembled. During the assembly process, it is necessary to first sleeve the elastic member 13 onto the guiding column 12. Due to the elasticity and telescopic property of the elastic member 13, the installation is inconvenient. By providing the sliding ring 18 and the stepped structure 19, the sliding ring 18 can be first sleeved onto the guiding column 12 during installation, then the elastic member 13 is sleeved onto the guiding column 12, and finally the guiding column 12 is screwed onto the slide rail 11. At this time, under the blocking of the sliding ring 18 and the stepped structure 19, the elastic member 13 is installed between the sliding ring 18 and the slide rail 11 and does not have excessive mobility due to the elastic force, so the installation difficulty of the elastic member 13 is reduced, and the installation of the telescopic assembly 3 is facilitated.

[0039] As Figure 3 shown, a high-density connector female head 20 is fixed on the board card 1, and a high-density connector male head 21 is arranged in the chassis 100. When the telescopic node base is located in the chassis 100, the high-density connector female head 20 is inserted into the high-density connector male head 21. And an extension board connection part 22 is arranged on one side of the extension board 8 close to the base body 5, and a convex groove 23 is arranged on one side of the base body 5 close to the extension board 8. The extension board connection part 22 can extend into the convex groove 23. Specifically, when the telescopic node base is located in the chassis 100, the extension board connection part 22 extends into the convex groove 23; when the telescopic node base is located outside the chassis 100, the extension board connection part 22 is located outside the convex groove 23. When the node is located inside the chassis, the extension board connection part extends into the convex groove, and the extension board will not cause obstruction and influence on the movement of the telescopic assembly; when the node is pulled out of the chassis, the extension board connection part will also extend out of the convex groove accordingly, achieving the effect of lengthening the node base. Therefore, the sheet metal can protect the high-density connector of the board card, thereby avoiding the risk of collision.

[0040] As Figures 3 to 6As shown in the figure, the working principle of the retractable node base is as follows:

[0041] During installation: First, put the elastic member 13 and the slip ring 18 on the guiding column 12, and fix them with threads in the threaded hole 16 on the slide rail 11. The slip ring 18 can slide freely on the guiding column 12. Under the elastic force of the elastic member 13, the slip ring 18 abuts against the stepped structure 19. The slide rail 11 is fixed on the extension bar 10 and fixed with screws. In this way, the telescopic assembly 3 is assembled.

[0042] Secondly, insert the telescopic assembly 3 into the base assembly 2 of the node base. The slide rail 11 is inserted into the chute 6 on the side wall, the guiding column 12 passes through the slot hole 15, the slip ring 18 abuts against the limiting plate 14, and the elastic member 13 is compressed. After inserting a certain distance, pass the limiting member 4 through the limiting groove 7 and fix it on the slide rail 11. At this time, the assembly is completed, and the telescopic assembly 3 can telescopically move within a certain range in the base assembly 2 of the node base.

[0043] The free conversion of the retractable node base inside and outside the chassis 100 includes the following two states.

[0044] When the retractable node base is inside the chassis 100: When the node is inserted into the chassis 100, the extension bar 10 of the node base abuts against the middle bracket 101. The telescopic assembly 3 is compressed, and the extension plate connecting part 22 is hidden in the convex groove 23, and the male high-density connector 21 on the board 1 is exposed to ensure the mating of the high-density connectors.

[0045] When the retractable node base is outside the chassis 100: The node is unlocked, the pressure of the telescopic assembly 3 is released, and the auxiliary node is pulled out. After the telescopic assembly 3 pops out of the base assembly 2 of the node base, the extension plate 8 lengthens the node base, and the sheet metal can protect the high-density connector of the board 1, thus avoiding the risk of collision.

[0046] It can be seen from the above embodiments that the beneficial effects of the present invention are as follows:

[0047] 1. By setting a retractable node base, the present invention can meet the protection requirements of the high-density connector of the board in the external scenario of the chassis 100, and improve the reliability of the product.

[0048] 2. By setting a freely retractable node base, the present invention enables the node base to freely convert between two states inside and outside the chassis 100.

[0049] 3. When the node is unlocked and pulled out, under the elastic force of the telescopic assembly 3, the auxiliary node pops out, improving the customer experience.

[0050] 4. By providing the guide posts 12 to assist in guiding the elastic member 13, the present invention can solve the problems of guiding the elastic member 13 and the bending or detachment of the elastic member 13, ensuring the operational reliability of the telescopic node base.

[0051] 5. By providing the slip ring, the present invention reduces the difficulty of installing the elastic member 13 and facilitates the installation of the telescopic assembly 3.

[0052] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A telescopic node base, comprising a base body assembly, and a board card is fixed to the base body assembly, characterized in that, It further includes a telescopic component and a limiting component. The base component includes a base body. At opposite ends of the base body, chutes are symmetrically arranged. Limiting grooves are formed on the side walls of the chutes. The telescopic component includes an extension plate. At opposite ends of the extension plate, telescopic parts are symmetrically arranged. The two telescopic parts are respectively inserted into the two chutes. The limiting component is fixed to the telescopic part through the limiting groove, and the telescopic component can slide along the chute and drive the limiting component to move in the limiting groove; The telescopic part includes an extension bar and a slide rail. The extension bar is fixed to both ends of the extension plate. The slide rail is fixed to the extension bar and symmetrically arranged at both ends of the extension plate. The slide rail is inserted into the chute, and the limiting component is fixed to the slide rail through the limiting groove; The telescopic part further includes a guide post and an elastic member. One end of the guide post is fixed to the bottom of the slide rail, and the extending direction of the guide post is the same as that of the slide rail. The elastic member is sleeved on the guide post; A limiting plate is arranged in the chute. The limiting plate is provided with a slot hole. The guide post is inserted into the chute, and the end of the guide post passes through the slot hole. Under the blocking of the limiting plate, the elastic member is in a compressed state; A sliding ring is also sleeved on the outer side of the guide post. A circumferential step structure is arranged at the end of the guide post. Under the elastic force of the elastic member, the sliding ring can abut against the step structure. When the telescopic part is inserted into the chute, the sliding ring can abut against the limiting plate to compress the elastic member; An extension plate connection part is arranged on one side of the extension plate close to the base body. A convex groove is arranged on one side of the base body close to the extension plate. The extension plate connection part can extend into the convex groove.

2. The retractable node base according to claim 1, characterized in that, A threaded hole is formed in the bottom of the slide rail. An external thread is arranged at the end of the guide post. The guide post is inserted into the threaded hole and is threadedly fixed to the slide rail.

3. The telescopic node base according to claim 1, characterized in that The elastic member is set as a spring.

4. The telescopic node base according to claim 1, characterized in that, The chute is fixed to the inner side of the base body by a rivet.

5. The telescopic node base according to claim 1, characterized in that, A high-density connector female head is fixed to the board card. A high-density connector male head is arranged in the chassis. When the retractable node base is located in the chassis, the high-density connector female head is inserted into the high-density connector male head.

6. The retractable node base according to claim 5, characterized in that, When the retractable node base is located in the chassis, the extension plate connection part extends into the convex groove; When the retractable node base is located outside the chassis, the extension plate connection part is located outside the convex groove.

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