One-way reduction component and multi-node plug-in server

Abstract

This application discloses a unidirectional deceleration assembly and a multi-node pluggable server, relating to the field of server technology. The unidirectional deceleration assembly includes a mounting shell and a friction element. The mounting shell has a receiving cavity, the inner wall of which includes an inclined surface extending along a first direction and inclined towards a second direction, the second direction being orthogonal to the first direction. At least a portion of the friction element is disposed within the receiving cavity, and the friction element is movable relative to the mounting shell. The friction element can move along the first direction under the influence of an object to be rubbed, and can also move along the second direction simultaneously under the action of the inclined surface, thereby increasing the frictional force with the object to be rubbed. The friction element can also move along a third direction opposite to the first direction under the influence of the object to be rubbed, and can also move along a fourth direction opposite to the second direction simultaneously under the action of the inclined surface. This invention can perform unidirectional deceleration on bidirectionally movable objects.

Description

Technical Field

[0001] This application relates to the field of server technology, and in particular to a unidirectional deceleration component and a multi-node pluggable server. Background Technology

[0002] High-speed insertion and removal of server nodes can lead to abnormal insertion and removal forces and connector damage during the high-density connector mating process. Connectors in related technologies usually use bidirectional deceleration methods such as speed bumps or friction pads to reduce the insertion and removal speed of nodes by increasing friction. However, this method also increases the friction when the node is pulled out, causing inconvenience when pulling out the node. Summary of the Invention

[0003] This application aims to at least partially address one of the technical problems in the related art. To this end, embodiments of this application propose a unidirectional deceleration assembly capable of unidirectionally decelerating an object that can move bidirectionally.

[0004] This application also provides a multi-node pluggable server.

[0005] The unidirectional deceleration assembly of this application includes a mounting shell and a friction element. The mounting shell has a receiving cavity, and the inner wall surface of the receiving cavity includes an inclined surface. The inclined surface extends along a first direction and is inclined toward a second direction, the second direction being orthogonal to the first direction. At least a portion of the friction element is disposed within the receiving cavity, and the friction element is movable relative to the mounting shell. The friction element can move along the first direction under the action of the object to be rubbed, and can move along the second direction simultaneously under the action of the inclined surface to increase the frictional force with the object to be rubbed. The friction element can also move along a third direction opposite to the first direction under the action of the object to be rubbed, and can move along a fourth direction opposite to the second direction simultaneously under the action of the inclined surface to reduce the frictional force with the object to be rubbed.

[0006] The unidirectional deceleration assembly in this embodiment includes a mounting shell and a friction element. The mounting shell has an inclined surface inside its accommodating cavity. When the object to be rubbed moves relative to the friction element, it can drive the friction element to move along a first direction. When the friction element moves along the first direction, it can also move along a second direction under the action of the inclined surface, increasing the friction between the friction element and the object to be rubbed, thereby reducing the speed of the object to be rubbed moving along the first direction. When the object to be rubbed moves along a third direction opposite to the first direction, the friction element can also move along a fourth direction opposite to the second direction under the action of the inclined surface, thereby moving the friction element away from the object to be rubbed, reducing the friction between the friction element and the object to be rubbed, thereby reducing the influence on the speed of the object to be rubbed moving along the third direction.

[0007] The multi-node pluggable server in this embodiment includes a housing, a unidirectional deceleration assembly, and a node chassis. The housing has a mounting cavity, which is open on one side in a first direction. The unidirectional deceleration assembly is disposed on at least one side of the mounting cavity in a second direction. The node chassis is the object to be rubbed and is detachably connected to the mounting cavity through the opening.

[0008] In this embodiment, by providing a one-way deceleration component within the housing, when the node chassis is installed from the open into the mounting cavity of the housing, the node chassis can drive the friction component to move along the first direction. Simultaneously, under the action of the inclined surface of the mounting housing, the friction component can move towards the node chassis, thereby increasing the friction between the friction component and the node chassis, slowing down the installation speed of the node chassis, and improving the safety of the node chassis installation. When it is necessary to remove the node chassis from the housing, the node chassis drives the friction component to move along a third direction opposite to the first direction. Simultaneously, under the action of the inclined surface, the friction component moves away from the node chassis, thereby reducing the friction between the node chassis and the friction component, thus facilitating the removal of the node chassis from the housing. Attached Figure Description

[0009] To more clearly illustrate the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0010] Figure 1 An exploded view of a multi-node pluggable server provided in an embodiment of this application;

[0011] Figure 2 A partial structural schematic diagram of the unidirectional deceleration component provided in an embodiment of this application;

[0012] Figure 3 A schematic diagram of the unidirectional deceleration assembly provided in this application embodiment after removing the mounting plate;

[0013] Figure 4 A partial cross-sectional view of a multi-node pluggable server provided in an embodiment of this application;

[0014] Figure 5 A partial structural schematic diagram of the outer casing provided in an embodiment of this application;

[0015] Figure 6 This is a schematic diagram of the first position of the node chassis inserted into the mounting cavity according to an embodiment of this application;

[0016] Figure 7This is a schematic diagram of the second position of the node chassis inserted into the mounting cavity according to an embodiment of this application;

[0017] Figure 8 This is a schematic diagram of the node chassis being inserted into the third position of the mounting cavity according to an embodiment of this application;

[0018] Figure 9 This is a schematic diagram showing the node chassis after being pulled out of the mounting cavity a certain distance, as provided in an embodiment of this application.

[0019] The above figures include the following reference numerals:

[0020] 1. One-way deceleration assembly; 11. Mounting housing; 111. Receiving cavity; 112. Inclined surface; 113. First stop; 114. Second stop; 115. Guide groove; 116. First connecting hole; 117. Clearance; 12. Friction element; 121. Friction wheel; 122. Elastic shaft; 13. Mounting plate; 131. Clearance opening; 132. Guide rail; 133. Second connecting hole;

[0021] 2. Outer shell;

[0022] 3. Node chassis; 31. First clearance groove; 32. Push section; 321. Push wall; 322. Sloping surface; 33. Second clearance groove; 34. Slide groove. Detailed Implementation

[0023] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this application.

[0024] It should be noted 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," and "circumferential," etc., indicating orientation or positional relationships based on the orientation or positional relationships 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. The terms "installed," "connected," and "linked" should be interpreted broadly, for example, they can be fixed connections, detachable connections, or integral connections; they can be mechanical connections or electrical connections; they can be direct connections or indirect connections through an intermediate medium; they can be internal connections between two elements. The terms "parallel," "perpendicular," and "equal" include the described situation and situations similar to the described situation, the range of which is within an acceptable deviation range, wherein the acceptable deviation range is determined by those skilled in the art taking into account the measurement under discussion and the error associated with the measurement of a particular quantity (i.e., the limitations of the measurement system). For example, "parallel" includes absolute parallelism and approximate parallelism, where an acceptable deviation range for approximate parallelism can be, for example, within 5°; "perpendicular" includes absolute perpendicularity and approximate perpendicularity, where an acceptable deviation range for approximate perpendicularity can also be, for example, within 5°. "Equal" includes absolute equality and approximate equality, where an acceptable deviation range for approximate equality can be, for example, a difference between the two equal items being less than or equal to 5% of either one. Those skilled in the art will understand the specific meaning of the above terms in this application based on the specific circumstances.

[0025] To enable those skilled in the art to better understand the present application, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] like Figures 1 to 3As shown, the unidirectional deceleration assembly 1 of this application embodiment includes a mounting shell 11 and a friction member 12. The mounting shell 11 has a receiving cavity 111, and the inner wall surface of the receiving cavity 111 includes an inclined surface 112. The inclined surface 112 extends along a first direction and is inclined towards a second direction, the second direction being orthogonal to the first direction. At least a portion of the friction member 12 is disposed within the receiving cavity 111, and the friction member 12 is movable relative to the mounting shell 11. The friction member 12 can move along the first direction under the influence of the object to be rubbed, and can also move along the second direction simultaneously under the action of the inclined surface 112, thereby increasing the frictional force with the object to be rubbed. The friction member 12 can also move along a third direction opposite to the first direction under the influence of the object to be rubbed, and can also move along a fourth direction opposite to the second direction simultaneously under the action of the inclined surface 112, thereby reducing the frictional force with the object to be rubbed.

[0027] Specifically, the mounting shell 11 is provided with first connecting holes 116 for fixing the mounting shell 11 by bolts passing through the first connecting holes 116. For example, four first connecting holes 116 can be provided, distributed at the four corners of the mounting shell 11, to facilitate reliable fixing of the mounting shell 11. Of course, the number of first connecting holes 116 on the mounting shell 11 is not intended to limit the invention, and those skilled in the art can choose according to actual needs.

[0028] The unidirectional deceleration assembly 1 in this embodiment includes a mounting shell 11 and a friction element 12. The receiving cavity 111 of the mounting shell 11 has an inclined surface 112. When the object to be rubbed moves relative to the friction element 12, it can drive the friction element 12 to move along a first direction. When the friction element 12 moves along the first direction, it can also move along a second direction under the action of the inclined surface 112, which increases the friction between the friction element 12 and the object to be rubbed, thereby reducing the speed of the object to be rubbed moving along the first direction. When the object to be rubbed moves along a third direction opposite to the first direction, under the action of the inclined surface 112, the friction element 12 can also move along a fourth direction opposite to the second direction, thereby moving the friction element 12 away from the object to be rubbed, reducing the friction between the friction element 12 and the object to be rubbed, thereby reducing the influence of the speed of the object to be rubbed moving along the third direction.

[0029] In this embodiment, as Figure 6 As shown, the receiving cavity 111 is provided with a first stop portion 113 and a second stop portion 114 at both ends along the first direction, so as to limit the friction member 12 along the third direction by the first stop portion 113 and limit the friction member 12 along the first direction by the second stop portion 114.

[0030] Specifically, the first stop 113 and the second stop 114 can be the two end faces of the receiving cavity 111 along the first direction, which facilitates processing.

[0031] It is understandable that by setting the first stop 113, the friction member 12 can be limited when it moves in the third direction. By setting the second stop 114, the friction member 12 can be limited when it moves in the first direction. The distance between the first stop 113 and the second stop 114 limits the movement distance of the friction member 12.

[0032] In this embodiment, as Figure 4 As shown, the friction element 12 includes a friction wheel 121 and an elastic shaft 122. The friction wheel 121 is provided with elastic shafts 122 at both ends in the axial direction. The friction wheel 121 is at least partially disposed in the receiving cavity 111. The mounting shell 11 has guide grooves 115 extending in the first direction at both ends along the fifth direction. The two elastic shafts 122 are respectively disposed in the two guide grooves 115. The elastic shafts 122 are movable relative to the mounting shell 11 along the first direction and the third direction. The fifth direction is orthogonal to the first direction and the second direction.

[0033] For example, both the friction wheel 121 and the elastic shaft 122 can be made of rubber, so that the elastic shaft 122 can deform in its radial direction, so that the friction wheel 121 can move in the second direction under the push of the inclined surface 112, or move in the fourth direction under the pressure of the object to be rubbed.

[0034] The friction element 12 in this embodiment includes a friction wheel 121 and an elastic shaft 122. The mounting housing 11 has guide grooves 115 extending along the first direction at both ends along the fifth direction. The elastic shaft 122 can be guided to move along the guide grooves 115 through the guide grooves 115, and the elastic shaft 122 can undergo elastic deformation, causing the friction wheel 121 to deviate with the direction of the inclined surface 112, so as to increase the friction of the object to be rubbed or reduce the friction of the object to be rubbed.

[0035] In this embodiment, as Figure 6 As shown, when the friction member 12 abuts against the first stop portion 113, a gap 117 is formed between the inclined surface 112 and the friction member 12.

[0036] When the friction element 12 abuts against the first stop portion 113, it is at the position where the friction element 12 is farthest from the object to be rubbed. Therefore, when the friction element 12 is squeezed by the object to be rubbed along the fourth direction, the friction element 12 can shift to the gap 117 to reduce the friction between the friction element 12 and the object to be rubbed.

[0037] In this embodiment, the outer peripheral surface of the friction wheel 121 is provided with teeth.

[0038] Specifically, the teeth on the friction wheel 121 are evenly distributed on the outer circumferential surface of the friction wheel 121.

[0039] By providing teeth on the outer circumferential surface of the friction wheel 121, the friction between the friction wheel 121 and the object to be rubbed can be increased, so that the friction wheel 121 can be moved along the first direction and the third direction by the object to be rubbed.

[0040] In this embodiment, as Figure 2 and Figure 4 As shown, the one-way deceleration assembly 1 also includes a mounting plate 13, a mounting shell 11 is disposed on the mounting plate 13, and a clearance opening 131 is provided at the position opposite to the receiving cavity 111 on the mounting plate 13, and the friction member 12 can protrude out of the clearance opening 131.

[0041] Specifically, the mounting plate 13 is provided with second connecting holes 133 that correspond one-to-one with the first connecting holes 116, and the mounting shell 11 and the mounting plate 13 are connected by bolts that pass through the first connecting holes 116 and the second connecting holes 133.

[0042] It is understandable that the mounting plate 13 facilitates the installation of the mounting shell 11. Multiple mounting shells 11 can be installed on one mounting plate 13 to meet the requirement of multiple objects to be rubbed undergoing unidirectional deceleration simultaneously.

[0043] like Figure 1 and Figure 4 As shown, the multi-node pluggable server in this embodiment includes a housing 2, a unidirectional deceleration assembly 1, and a node chassis 3. The housing 2 has a mounting cavity, which is open on one side in a first direction. The unidirectional deceleration assembly 1 is disposed on at least one side of the mounting cavity in a second direction. The node chassis 3 is the object to be rubbed and is detachably connected to the mounting cavity through the opening.

[0044] The unidirectional deceleration assembly 1 is disposed on at least one side of the mounting cavity in the second direction. That is, in the second direction, the unidirectional deceleration assembly 1 can be disposed on one side of the mounting cavity or on both sides of the mounting cavity. When the unidirectional deceleration assembly 1 is disposed on both sides, the node housing 3 is located between the unidirectional deceleration assemblies 1 on both sides, which can balance the forces on both sides of the node housing 3, which is conducive to the smooth movement of the node housing 3 into or out of the mounting cavity.

[0045] Specifically, the node chassis 3 moves into the mounting cavity in the same direction as the first direction, and moves out of the mounting cavity in the same direction as the third direction. This increases the friction between the node chassis 3 and the friction element 12 when it moves into the mounting cavity, thereby achieving deceleration and improving the safety of the node chassis 3 during installation. Conversely, when the node chassis 3 moves out of the mounting cavity, it reduces the friction between the node chassis 3 and the friction element 12, making it easier to remove the node chassis 3 from the outer shell 2.

[0046] In this embodiment, by providing a one-way deceleration assembly 1 inside the outer casing 2, when the node housing 3 is installed from the open into the mounting cavity of the outer casing 2, the node housing 3 can drive the friction element 12 to move along the first direction. Simultaneously, under the action of the inclined surface 112 of the mounting shell 11, the friction element 12 can move closer to the node housing 3, thereby increasing the friction between the friction element 12 and the node housing 3, slowing down the installation speed of the node housing 3, and improving the safety of installing the node housing 3. When it is necessary to remove the node housing 3 from the outer casing 2, as the node housing 3 drives the friction element 12 to move along a third direction opposite to the first direction, simultaneously, under the action of the inclined surface 112, the friction element 12 moves away from the node housing 3, thereby reducing the friction between the node housing 3 and the friction element 12, thus facilitating the removal of the node housing 3 from the outer casing 2.

[0047] In this embodiment, the side wall of the node chassis 3 is provided with a mating part that cooperates with the friction member 12, so as to drive the friction member 12 to move along the first direction and the third direction through the mating part.

[0048] It is understandable that by providing a mating part on the side wall of the node chassis 3 that mates with the friction element 12, the friction element 12 can be moved along the first direction and the third direction through the mating part, which facilitates the movement of the node chassis 3.

[0049] In this embodiment, as Figures 5 to 8 As shown, in the direction in which the node housing 3 moves into the mounting cavity, the mating part includes a first clearance groove 31 and a pushing section 32 that are sequentially spaced from the proximal end to the distal end on the side wall of the node housing 3. The pushing section 32 is used to apply a pushing force along the first direction from the outside to the inside of the mounting cavity to the friction member 12 when the node housing 3 moves into the mounting cavity. Before the connector of the node housing 3 is docked, the friction member 12 moves into the first clearance groove 31.

[0050] It should be noted that when the node housing 3 is moved into the mounting cavity to a certain depth, the friction element 12 can be pushed to move along the first direction by the pushing section 32. While the friction element 12 moves along the first direction, under the action of the inclined surface 112, the friction element 12 will move closer to the node housing 3 to increase the friction between the friction element 12 and the node housing 3. When the node housing 3 continues to move into the first clearance groove 31 and the friction wheel 121 are opposite, the protruding part of the friction element 12 can be located in the first clearance groove 31. The friction element 12 does not contact the node housing 3. In this case, the node housing 3 enters the high-density connector mating stage. When the node housing 3 is moved out of the mounting cavity, the friction element 12 is located in the first clearance groove 31 after moving out a certain distance. At this time, the friction element 12 and the node housing 3 can facilitate the disconnection of the connector of the node housing 3. When the side wall of the first clearance groove 31 contacts the friction element 12, it can push the friction element 12 to move in a third direction, and the friction element 12 moves away from the node housing 3, reducing the friction between the node housing 3 and the friction element 12.

[0051] In this embodiment, as Figure 6 As shown, the pushing section 32 includes a groove. In the moving direction of the node housing 3, the proximal sidewall of the groove forms a pushing wall 321 against the friction member 12, and the distal sidewall of the groove is a slope surface 322 that slopes to the distal end.

[0052] Specifically, the pushing wall 321 is approximately parallel to the second direction to generate a stable pushing force on the friction element 12 in the first direction.

[0053] It should be noted that the proximal sidewall of the groove forms a pushing wall 321 against the friction element 12. When the node housing 3 moves into the mounting cavity, the friction element 12 can be pushed to move stably in the first direction by the pushing wall 321. When the node housing 3 moves out of the mounting cavity, the distal sidewall of the groove is released from the friction element 12. Since the distal sidewall of the groove is a slope surface 322, the friction between the sidewall of the groove and the friction element 12 can be reduced.

[0054] In this embodiment, the pushing section 32 includes a plurality of grooves arranged at intervals along a first direction.

[0055] For example, the number of grooves can be two, three, or four, etc. The number of grooves can be set according to actual needs and is not limited here.

[0056] It is understandable that by setting multiple grooves, multiple grooves can form multiple pushing walls 321 in the connection direction of the node housing 3. By setting multiple pushing walls 321, when the node housing 3 moves into the mounting cavity, it can push the friction member 12 through the multiple pushing walls 321, which is beneficial for the friction member 12 to move stably along the first direction.

[0057] In this embodiment, as Figure 5 As shown, the mating part also includes a second clearance groove 33, which is disposed on the side of the pushing section 32 away from the first clearance groove 31. The depth of the first clearance groove 31 along the second direction is greater than that of the second clearance groove 33.

[0058] It should be noted that by setting the second clearance groove 33, when the node housing 3 begins to move into the mounting cavity, the friction element 12 is located within the second clearance groove 33, and the friction element 12 does not contact the node housing 3. This allows the node housing 3 to enter the mounting cavity quickly. When the node housing 3 is about to be pulled out of the mounting cavity, the friction element 12 is located within the second clearance groove 33, and the node housing 3 and the friction element 12 do not contact each other, allowing the node housing 3 to be pulled out quickly.

[0059] In this embodiment, as Figure 1 , Figure 4 and Figure 5 As shown, the mounting cavity is provided with a guide rail 132 extending in the first direction along the side wall of the second direction, and the node housing 3 is provided with a sliding groove that matches the guide rail 132 on the side wall.

[0060] By setting guide rail 132 on the side wall of the mounting cavity and setting a sliding groove on the side wall of the node housing 3 that matches the guide rail 132, the node housing 3 can be guided by the cooperation of the guide rail 132 and the sliding groove, so as to facilitate the smooth movement of the node housing 3.

[0061] In summary, such as Figures 6 to 8 As shown, in this embodiment, when the node housing 3 is inserted into the mounting cavity of the outer shell 2, when the node housing 3 is inserted to a certain depth, the friction element 12 abuts against the first stop 113, and part of the friction element 12 protrudes from the clearance opening 131. The protruding part is located in the second clearance groove 33, and the friction element 12 does not contact the node housing 3. When the node housing 3 continues to move in, the friction element 12 and the node housing 3 are slightly squeezed. The pushing wall 321 can push the friction element 12 to move along the first direction. While the friction element 12 moves along the first direction, under the action of the inclined surface 112, the friction element 12 will move closer to the node housing 3 to increase the friction between the friction element and the node housing 3. When the node housing 3 continues to move in until the first clearance groove 31 and the friction wheel 121 are opposite, the protruding part of the friction element 12 can be located in the first clearance groove 31, and the friction element 12 does not contact the node housing 3. In this case, the node housing 3 enters the high-density connector mating stage. Figure 9As shown, when the node housing 3 is moved out of the mounting cavity, the friction element 12 is located within the first clearance groove 31 after a certain distance. At this time, since the friction element 12 is not in contact with the node housing 3, it is convenient for the connector of the node housing 3 to be detached. When the side wall of the first clearance groove 31 contacts the friction element 12, it can push the friction element 12 to move in a third direction, moving the friction element 12 away from the node housing 3 and reducing the friction between the node housing 3 and the friction element 12. When the friction element 12 contacts the first stop part 113, the friction element 12 corresponds to... At the gap 117, the friction wheel 121 is slightly squeezed against the node housing 3. The elastic shaft 122 undergoes elastic deformation, reducing the outward convex part of the friction wheel 121 and reducing the friction between the friction wheel 121 and the node housing 3. As the node housing 3 continues to move out, the ramp surface 322 can reduce the thrust on the friction wheel 121 and provide protection for the friction wheel 121. As the node housing 3 continues to move out, the second clearance groove 33 and the friction wheel 121 are opposite each other, and the friction wheel 121 does not contact the node housing 3, which allows the node housing 3 to move out quickly.

[0062] The foregoing has provided a detailed description of a unidirectional deceleration component and a multi-node pluggable server provided in this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are merely for the purpose of helping to understand the method and core ideas of this application. It should be noted that those skilled in the art can make various improvements and modifications to this application without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this application.

Claims

1. A multi-node pluggable server, characterized in that, include: The housing has a mounting cavity, which is open on one side in a first direction; A one-way deceleration assembly, wherein the one-way deceleration assembly is disposed on at least one side of the mounting cavity in a second direction; A node housing, which is the object to be rubbed, is detachably connected to the mounting cavity through the opening; The unidirectional deceleration component includes: The mounting housing has a receiving cavity, the inner wall surface of which includes an inclined surface that extends along a first direction and is inclined toward a second direction, the second direction being orthogonal to the first direction; A friction element, at least a portion of which is disposed within the receiving cavity, and which is movable relative to the mounting shell, wherein the friction element is movable along a first direction under the action of the object to be rubbed, and is movable along a second direction simultaneously under the action of the inclined surface, so as to increase the frictional force with the object to be rubbed. The friction element can move along a third direction opposite to the first direction under the action of the object to be rubbed, and can also move along a fourth direction opposite to the second direction under the action of the inclined surface, so as to reduce the frictional force with the object to be rubbed. The node chassis has a mating part on its side wall that mates with the friction element, so that the friction element can be moved along the first direction and the third direction through the mating part; In the direction in which the node chassis moves into the mounting cavity, the mating part includes a first clearance groove and a pushing section that are sequentially spaced from the proximal end to the distal end on the side wall of the node chassis. The pushing section is used to apply a thrust along the first direction from the outside to the inside of the mounting cavity to the friction member when the node chassis moves into the mounting cavity. Before the connector of the node chassis is docked, the friction member moves into the first clearance groove. The pushing section includes a groove, and in the direction of movement of the node chassis, the proximal sidewall of the groove forms a pushing wall that pushes the friction element, and the distal sidewall of the groove is a sloped surface that slopes towards the distal end.

2. The multi-node pluggable server according to claim 1, characterized in that, The receiving cavity is provided with a first stop and a second stop at both ends along the first direction, so as to limit the friction member along the third direction by the first stop and limit the friction member along the first direction by the second stop.

3. The multi-node pluggable server according to claim 2, characterized in that, When the friction element abuts against the first stop portion, a gap is formed between the inclined surface and the friction element.

4. The multi-node pluggable server according to claim 1, characterized in that, The friction element includes: The friction wheel and the elastic shaft are provided at both ends of the axial direction of the friction wheel. The friction wheel is at least partially located in the receiving cavity. The mounting shell has guide grooves extending along the first direction at both ends along the fifth direction. The two elastic shafts are correspondingly arranged in the two guide grooves. The elastic shafts are movable relative to the mounting shell along the first direction and the third direction. The fifth direction is orthogonal to the first direction and the second direction.

5. The multi-node pluggable server according to claim 4, characterized in that, The outer circumferential surface of the friction wheel is provided with teeth.

6. The multi-node pluggable server according to any one of claims 1-5, characterized in that, It also includes a mounting plate, the mounting shell is disposed on the mounting plate, and the mounting plate is provided with a clearance opening at a position opposite to the receiving cavity, and the friction member can protrude from the clearance opening.

7. The multi-node pluggable server according to claim 1, characterized in that, The pushing section includes a plurality of grooves that are spaced apart sequentially along the first direction.

8. The multi-node pluggable server according to claim 1, characterized in that, The mating part further includes a second clearance groove, which is disposed on the side of the pushing section opposite to the first clearance groove, and the depth of the first clearance groove along the second direction is greater than that of the second clearance groove.

9. The multi-node pluggable server according to any one of claims 1-5, characterized in that, The mounting cavity is provided with a guide rail extending in the first direction along the side wall of the second direction, and the node chassis is provided with a sliding groove that matches the guide rail on the side wall.

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