Slide rails, blade servers

Abstract

The present invention relates to a slide rail, which is applied to a blade server. The slide rail comprises: an outer rail, which comprises a bottom wall and two side walls connected to each other, wherein the two side walls and the bottom wall form a groove depressed in the vertical direction, and the outer rail is used to connect with a cabinet of the blade server; an inner rail, which moves and cooperates with the groove along a first direction, wherein the inner rail has an inner surface opposite to the bottom wall, and the inner rail is used to connect with the end of the chassis of the blade server along the vertical direction, and the first direction is along the horizontal direction; and a plurality of rolling members, wherein the rolling members are located between the inner surface and the bottom wall, and the inner surface and the bottom wall respectively roll with the rolling members. The gravity of the chassis can be sequentially transmitted to the mounting surface of the outer rail on the cabinet via the inner rail, the rolling members, and the bottom wall in the vertical direction. It can be seen that the rolling members can effectively bear most of the gravity of the chassis, reduce the risk of failure of the slide rail, and extend the life and strength of the slide rail.

Description

Technical Field

[0001] The invention relates to the technical field of server slide rails, in particular to slide rails and blade servers. Background Art

[0002] The chassis of the server is often connected to the cabinet through a slide rail, so that the installation position can be determined by the limit and sliding of the slide rail, which is convenient for the installation and use of the chassis. With the maturity of server technology application, the computing power and density of the server are gradually increasing, and the size and weight of the server are also increasing accordingly. Therefore, the load-bearing capacity of the slide rail will also gradually increase.

[0003] The slide rails are usually installed on both sides of the chassis in the length or width direction. At present, the chassis of common servers on the market are placed in the horizontal direction (that is, the length and width of the chassis are parallel to the horizontal plane). Therefore, the gravity direction of the chassis is parallel to the installation surface of the slide rail on the cabinet (a vertical plane), and the slide rail has a small load-bearing capacity on the chassis.

[0004] However, for blade servers, the chassis is generally installed vertically on the cabinet (that is, the length and width directions of the chassis are parallel to the vertical plane), which will cause the slide rails to be on the upper and lower sides of the chassis. The gravity direction of the chassis is perpendicular to the installation surface of the slide rail on the cabinet (a horizontal plane). Almost all of the gravity of the chassis is transmitted to the installation surface through the slide rail, so that the slide rail bears a large load, resulting in problems such as shortened slide rail life, reduced strength, and increased failure rate. Summary of the invention

[0005] Based on this, it is necessary to provide a slide rail and a blade server to address the technical problem in the prior art that the slide rail between the chassis and the cabinet of the blade server has a large load-bearing capacity, resulting in a shortened slide rail life, reduced strength, and increased failure rate.

[0006] A slide rail is applied to a blade server, and the slide rail comprises:

[0007] An outer rail, the outer rail comprising a bottom wall and two side walls connected to each other, the two side walls and the bottom wall forming a groove sunken in the vertical direction, the outer rail being used to connect to the cabinet of the blade server;

[0008] an inner rail, the inner rail being movably matched with the groove along a first direction, the inner rail having an inner surface opposite to the bottom wall, the inner rail being used to connect with an end of a chassis of the blade server along a vertical direction, the first direction being along a horizontal direction; and

[0009] A plurality of rolling elements are provided, wherein the rolling elements are located between the inner surface and the bottom wall, and the inner surface and the bottom wall are respectively in rolling cooperation with the rolling elements.

[0010] When the above-mentioned slide rail is applied to a blade server, the chassis is vertically mounted on the cabinet. At least the lower end of the chassis is slidably connected to the cabinet along a first direction through the corresponding slide rail. The lower end of the chassis is connected to the inner rail of the corresponding slide rail, and the outer rail of the slide rail is connected to the cabinet, so the mounting surface of the outer rail of the slide rail on the cabinet is a horizontal plane. Since the rolling element is located between the inner surface and the bottom wall, the gravity of the chassis can be transmitted to the mounting surface of the outer rail on the cabinet in a vertical direction through the inner rail, the rolling element, and the bottom wall in sequence. It can be seen that the rolling element can effectively bear most of the gravity of the chassis, reduce the risk of failure of the slide rail, and extend the life and strength of the slide rail. At the same time, since the inner surface and the bottom wall respectively cooperate with the rolling element in rolling, the resistance of the inner rail when it moves relative to the outer rail along the first direction can be effectively reduced, so that the chassis can be smoothly inserted or pulled out of the cabinet.

[0011] In one embodiment, a first limiting groove extending along the first direction is formed on the inner surface, and the first limiting groove cooperates with the rolling member to limit the position of the rolling member along the second direction; a second limiting groove extending along the first direction is formed on the bottom wall, and the second limiting groove cooperates with the rolling member to limit the position of the rolling member along the second direction; wherein the second direction is along the horizontal direction and perpendicular to the first direction. Since the first limiting groove limits the position of the rolling member along the second direction, it can ensure that the rolling member rolls along the first direction between the inner surface and the bottom wall, which is conducive to the smooth and stable movement of the inner rail relative to the outer rail along the first direction. Similarly, since the second limiting groove limits the position of the rolling member along the second direction, it can further ensure that the rolling member rolls along the first direction between the inner surface and the bottom wall, which is conducive to the smooth and stable movement of the inner rail relative to the outer rail along the first direction.

[0012] In one embodiment, the rolling element is a ball; the groove wall of the first limiting groove is an arc surface and matches the surface of the ball, so as to facilitate the smooth rolling of the ball, and further facilitate the smooth and stable movement of the inner rail relative to the outer rail along the first direction. The groove wall of the second limiting groove is an arc surface and matches the surface of the ball, so as to facilitate the smooth rolling of the ball, and further facilitate the smooth and stable movement of the inner rail relative to the outer rail along the first direction.

[0013] In one embodiment, the plurality of rolling elements are arranged into at least two rows of rolling elements spaced apart along the second direction, and each row of rolling elements includes a plurality of rolling elements sequentially arranged along the first direction. This can make the movement of the inner rail relative to the outer rail more stable, and the bearing capacity of the slide rail stronger.

[0014] In one embodiment, a first protrusion is formed in the middle of the inner rail along the second direction and protrudes away from the bottom wall. The first protrusion extends from the outer rail in a direction away from the bottom wall. The first protrusion is used to connect to the chassis of the blade server, thereby facilitating the connection between the first protrusion and the chassis of the blade server; wherein the second direction is along the horizontal direction and perpendicular to the first direction.

[0015] In one embodiment, the slide rail also includes a middle rail located in the groove, the middle rail cooperates with the groove to move along the first direction, and the middle rail is provided with a mounting hole corresponding to the rolling element, and the rolling element is installed in the corresponding mounting hole, so that the mounting hole can limit the position of the rolling element relative to the middle rail, thereby facilitating the smooth and stable movement of the inner rail relative to the outer rail along the first direction.

[0016] In one embodiment, a second protrusion protruding toward the bottom wall is formed in the middle of the middle rail along the second direction, and the second protrusion can play a role in strengthening the strength of the middle rail. Wherein, the second direction is along the horizontal direction and perpendicular to the first direction.

[0017] In one embodiment, the rolling element is a ball or a cylindrical roller.

[0018] In one embodiment, the outer rail is provided with an inner stopper at one end along the positive direction of the first direction, and the inner stopper is used to stop the inner rail, wherein the positive direction of the first direction is defined as the direction when the chassis of the blade server is inserted into the cabinet. Since the inner stopper is provided at one end of the outer rail in the positive direction of the first direction, when the chassis of the blade server is inserted into the cabinet, the inner stopper stops the inner rail, which facilitates determination of whether the chassis is inserted in place, and prevents the chassis from being inserted too deep.

[0019] In one embodiment, both ends of the middle rail along the second direction respectively have first matching walls bent in a direction away from the bottom wall, wherein the second direction is along a horizontal direction and perpendicular to the first direction;

[0020] The outer rail also includes two first bending walls, which are connected one by one to one with one end of the two side walls facing away from the bottom wall. The first bending walls are bent toward the inner side of the groove along the second direction relative to the corresponding side walls, so as to stop the first matching wall from moving in the direction away from the bottom wall, thereby preventing the middle rail from separating from the outer rail in the direction away from the bottom wall.

[0021] In one embodiment, both ends of the inner rail along the second direction respectively have second matching walls bent in a direction away from the bottom wall;

[0022] The outer rail also includes two second bending walls, and the two second bending walls are connected one by one to one with one end of the two first bending walls away from the corresponding side walls. The second bending walls are bent relative to the corresponding first bending walls in a direction away from the bottom wall to limit the corresponding second matching walls in the second direction, so that the position of the inner rail is limited between the two second bending walls, thereby ensuring that the inner rail can move relative to the outer rail along the first direction.

[0023] In one embodiment, the outer rail also includes two third bending walls, and the two third bending walls are connected one by one to one with one end of the two second bending walls away from the corresponding first bending walls. The third bending walls are bent toward the inner side of the groove along the second direction relative to the corresponding second bending walls, so as to stop the second mating wall from moving in the direction away from the bottom wall, thereby preventing the inner rail from separating from the outer rail in the direction away from the bottom wall.

[0024] In one embodiment, the slide rail further comprises:

[0025] An outer stopper, disposed on the outer rail;

[0026] A rotating member connected to the inner rail and having a first angle and a second angle of rotation relative to the inner rail;

[0027] a lever, the lever being located between the inner rail and the outer rail; and

[0028] an elastic member, wherein the lever is connected to the inner rail through the elastic member, and the lever is allowed to reciprocate along the first direction through elastic deformation of the elastic member, so that the lever can drive the rotating member to switch between the first angle and the second angle;

[0029] Wherein, when the rotating member is at the first angle, the external stop portion can stop the rotating member from moving in the opposite direction of the first direction, and the opposite direction of the first direction is defined as the direction in which the chassis of the blade server is pulled out of the cabinet; when the rotating member is at the second angle, the external stop portion can release the rotating member.

[0030] In the first stage of the process of pulling the chassis out of the cabinet, the rotating member is at a first angle relative to the inner rail. The inner rail moves with the chassis in the opposite direction of the first direction, so that the lever and the rotating member move with the inner rail in the opposite direction of the first direction until the rotating member reaches the location of the outer stopper. The outer stopper can stop the rotating member at the first angle from moving in the opposite direction of the first direction, and then stop the inner rail from moving in the opposite direction of the first direction, that is, stop the chassis from moving in the opposite direction of the first direction. In this way, personal injury caused by the chassis rushing out of the cabinet due to inertia can be prevented, that is, the outer stopper plays a buffering role on the chassis. After the first stage, the lever can be pushed in the first direction to overcome the elastic force of the elastic member, so that the lever drives the rotating member to be at a second angle, so that the outer stopper releases the rotating member. At this time, the rotating part can move in the opposite direction of the first direction, and the inner rail and the chassis can move in the opposite direction of the first direction, so that the chassis enters the second stage of movement and continues to be pulled out of the cabinet in the second stage, that is, the chassis and the inner rail continue to move in the opposite direction of the first direction until the chassis is moved out of the cabinet.

[0031] In one embodiment, the lever is provided with a slide groove inclined to the first direction, and a sliding portion is provided at one end of the rotating member; when the lever moves along the first direction, the sliding cooperation between the sliding portion and the slide groove can enable the rotating member to switch between the first angle and the second angle.

[0032] In one embodiment, the inner rail is provided with an avoidance groove, the position of the avoidance groove corresponds to the slide groove, and the sliding part passes through the slide groove and extends into the avoidance groove. The provision of the avoidance groove allows the sliding part to be made longer, thereby minimizing the slip between the sliding part and the slide groove.

[0033] In one embodiment, a limit hook is provided on the rotating member, and when the rotating member is at the first angle, the outer stop portion can stop the limit hook from moving in the opposite direction of the first direction; when the rotating member is rotated to the second angle, the limit hook and the outer stop portion are misaligned in the second direction so that the outer stop portion releases the limit hook, wherein the second direction is along the horizontal direction and perpendicular to the first direction.

[0034] A blade server comprises a cabinet, a chassis and any one of the above-mentioned slide rails, wherein at least the lower end of the chassis is slidably connected to the cabinet through the corresponding slide rail. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a structural exploded diagram of a slide rail according to an embodiment;

[0036] Figure 2 for Figure 1 A schematic cross-sectional view of a slide rail in FIG.

[0037] Figure 3 for Figure 1 A partial enlarged view of the middle A;

[0038] Figure 4 for Figure 1 A partial enlarged view of point B in the middle;

[0039] Figure 5 for Figure 1 A schematic diagram of the connection relationship between the lever, inner rail, rotating member and elastic member of the slide rail;

[0040] Figure 6 for Figure 1 A schematic diagram of a rotating member on the inner rail of a slide rail being stopped by an outer stopper;

[0041] Figure 7 for Figure 6 A partial enlarged view of point C in the middle;

[0042] Figure 8 for Figure 1 A partial enlarged view of point D in the middle.

[0043] Description of Figure Numbers:

[0044] Outer rail 110; bottom wall 111; side wall 112; groove 113; second limiting groove 114; inner stopper 115; first bending wall 116; second bending wall 117; third bending wall 118;

[0045] Inner rail 120; inner surface 121 of inner rail 120; first limiting groove 122; first protruding portion 123; second matching wall 124; avoidance groove 125; guide portion 126;

[0046] Rolling element 130;

[0047] Middle rail 140; mounting hole 141; second protrusion 142; first matching wall 143;

[0048] Rotating member 150; Limiting hook 152;

[0049] A lever 160; a slide groove 161; a knob 162; a guide groove 163;

[0050] Elastic member 170. DETAILED DESCRIPTION

[0051] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0052] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0053] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0054] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0055] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0056] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0057] Please refer to Figure 1 and Figure 2 An embodiment of the present application provides a slide rail for use in a blade server (not shown). The slide rail includes an outer rail 110, an inner rail 120, and a plurality of rolling elements 130. For the convenience of description, the first direction XX', the second direction YY', and the third direction ZZ' are used for illustration. When the slide rail is actually applied to a blade server, the first direction XX' and the second direction YY' are respectively along the horizontal direction, and the third direction ZZ' is along the vertical direction. The first direction XX', the second direction YY', and the third direction ZZ' are perpendicular to each other.

[0058] The outer rail 110 includes a bottom wall 111 and two side walls 112 connected to each other. The two side walls 112 and the bottom wall 111 form a groove 113 that is recessed along a third direction ZZ'. The outer rail 110 is used to connect to a cabinet of a blade server. The inner rail 120 is movably matched with the groove 113 along a first direction XX'. The inner rail 120 has an inner surface 121 opposite to the bottom wall 111. The inner rail 120 is used to connect to the end of the chassis of the blade server in the vertical direction. The rolling member 130 is located between the inner surface 121 and the bottom wall 111, and the inner surface 121 and the bottom wall 111 are respectively rollingly matched with the rolling member 130.

[0059] When the above-mentioned slide rail is applied to a blade server (not shown), the chassis is vertically mounted on the cabinet. At least the lower end of the chassis is slidably connected to the cabinet along the first direction XX' through the corresponding slide rail. The lower end of the chassis is connected to the inner rail 120 of the corresponding slide rail, and the outer rail 110 of the slide rail is connected to the cabinet, then the mounting surface of the outer rail 110 of the slide rail on the cabinet is a (upward) horizontal plane. Since the rolling element 130 is located between the inner surface 121 and the bottom wall 111, the gravity of the chassis can be transmitted to the mounting surface of the outer rail 110 on the cabinet in a vertical direction through the inner rail 120, the rolling element 130, and the bottom wall 111 in sequence. It can be seen that the rolling element 130 can effectively bear most of the gravity of the chassis, reduce the risk of failure of the slide rail, and extend the life and strength of the slide rail. At the same time, since the inner surface 121 and the bottom wall 111 respectively roll with the rolling element 130 , the resistance of the inner rail 120 moving relative to the outer rail 110 along the first direction XX′ can be effectively reduced, so that the chassis can be smoothly inserted into or removed from the cabinet.

[0060] It can be understood that the upper end of the chassis can also be slidably connected to the cabinet along the first direction XX' through the corresponding slide rail, the upper end of the chassis is connected to the inner rail 120 of the corresponding slide rail, and the outer rail 110 of the slide rail is connected to the cabinet, then the installation surface of the outer rail 110 of the slide rail on the cabinet is a (downward) horizontal plane.

[0061] Please refer to Figure 2 In one embodiment, a first limiting groove 122 extending along the first direction XX' is formed on the inner surface 121, and the first limiting groove 122 cooperates with the rolling element 130 to limit the position of the rolling element 130 along the second direction YY'. A second limiting groove 114 extending in the first direction XX' is formed on the bottom wall 111, and the second limiting groove 114 cooperates with the rolling element 130 to limit the position of the rolling element 130 along the second direction YY'.

[0062] Since the first limiting groove 122 defines the position of the rolling element 130 along the second direction YY', it is possible to ensure that the rolling element 130 rolls along the first direction XX' between the inner surface 121 and the bottom wall 111, which is conducive to the smooth and stable movement of the inner rail 120 relative to the outer rail 110 along the first direction XX'. Similarly, since the second limiting groove 114 defines the position of the rolling element 130 along the second direction YY', it is possible to further ensure that the rolling element 130 rolls along the first direction XX' between the inner surface 121 and the bottom wall 111, which is conducive to the smooth and stable movement of the inner rail 120 relative to the outer rail 110 along the first direction XX'.

[0063] Please refer to Figure 2In one embodiment, the rolling element 130 is a ball. The groove wall of the first limiting groove 122 is an arc surface and matches the surface of the ball, which is conducive to the smooth rolling of the ball, and further facilitates the smooth and stable movement of the inner rail 120 relative to the outer rail 110 along the first direction XX'. Similarly, the groove wall of the second limiting groove 114 is an arc surface and matches the surface of the ball, which is conducive to the smooth rolling of the ball and further facilitates the smooth and stable movement of the inner rail 120 relative to the outer rail 110 along the first direction XX'.

[0064] In other embodiments, the rolling element may also be other rolling structures such as cylindrical rollers.

[0065] Please refer to Figure 1 and Figure 2 In one embodiment, the plurality of rolling elements 130 are arranged in at least two rows of rolling elements 130 spaced apart along the second direction YY', and each row of rolling elements 130 includes a plurality of rolling elements 130 sequentially arranged along the first direction XX'. In this way, the movement of the inner rail 120 relative to the outer rail 110 can be more stable, and the bearing capacity of the slide rail can be stronger.

[0066] exist Figure 2 In the illustrated embodiment, the plurality of rolling elements 130 are arranged in two rows of rolling elements 130 that are spaced apart from each other along the second direction YY′.

[0067] In other embodiments, the plurality of rolling elements may be arranged in three or more rows of rolling elements spaced apart along the second direction. Of course, the plurality of rolling elements may also be arranged in only one row of rolling elements sequentially arranged along the first direction XX'.

[0068] Please refer to Figure 2 In one embodiment, a first protrusion 123 protruding away from the bottom wall 111 is formed in the middle of the inner rail 120 along the second direction YY', and the first protrusion 123 extends from the outer rail 110 in a direction away from the bottom wall 111, thereby facilitating the connection between the first protrusion 123 and the chassis of the blade server.

[0069] exist Figure 2 In the illustrated embodiment, along the second direction YY′, the first protrusion 123 is located between two rows of rolling elements 130 .

[0070] Please refer to Figure 1 and Figure 2In one embodiment, the slide rail further includes a middle rail 140 located in the groove 113. The middle rail 140 and the groove 113 move and cooperate along the first direction XX'. The middle rail 140 is provided with a mounting hole 141 corresponding to the rolling element 130, and the rolling element 130 is installed in the corresponding mounting hole 141, so that the mounting hole 141 can limit the position of the rolling element 130 relative to the middle rail 140, thereby facilitating the smooth and stable movement of the inner rail 120 relative to the outer rail 110 along the first direction XX'. Among them, the upper end and the lower end of the rolling element 130 extend out of the mounting hole 141 respectively, so that the inner surface 121 and the bottom wall 111 can cooperate with the rolling element 130 respectively. It can be understood that when the inner rail 120 moves relative to the outer rail 110 along the first direction XX', the rolling element 130 rolls between the inner rail 120 and the outer rail 110 along the first direction XX'.

[0071] The rolling elements and the mounting holes may correspond one to one, or one mounting hole may correspond to multiple rolling elements.

[0072] Please refer to Figure 2 In one embodiment, a second protrusion 142 protruding toward the bottom wall 111 is formed in the middle of the middle rail 140 along the second direction YY′, and the second protrusion 142 can play a role in strengthening the strength of the middle rail 140 .

[0073] Please refer to Figure 3 and Figure 2 In one embodiment, the outer rail 110 is provided with an inner stopper 115 at one end along the positive direction of the first direction XX' (i.e., the OX' direction), and the inner stopper 115 is used to stop the inner rail 120, wherein the positive direction of the first direction XX' (i.e., the OX' direction) is defined as the direction when the chassis of the blade server is inserted into the cabinet. Since the inner stopper 115 is provided at one end along the positive direction of the first direction XX' (i.e., the OX' direction) of the outer rail 110, when the chassis of the blade server is inserted into the cabinet, the inner stopper 115 stops the inner rail 120, so that it is convenient to determine whether the chassis is inserted in place, and prevent the chassis from being inserted too deep.

[0074] Please refer to Figure 2 In one embodiment, the two ends of the middle rail 140 along the second direction YY' respectively have first matching walls 143 bent in a direction away from the bottom wall 111 (i.e., the OZ' direction). The outer rail 110 also includes two first bending walls 116, which are connected to one end of the two side walls 112 away from the bottom wall 111 in a one-to-one correspondence. The first bending walls 116 are bent toward the inner side of the groove 113 relative to the corresponding side wall 112 along the second direction YY', so as to stop the first matching walls 143 from moving in a direction away from the bottom wall 111, thereby preventing the middle rail 140 from separating from the outer rail 110 in a direction away from the bottom wall 111 (i.e., the OZ' direction).

[0075] The first bending wall 116 and the corresponding side wall 112 may be integrally formed.

[0076] Please refer to Figure 2 In one embodiment, the inner rail 120 has second matching walls 124 bent in a direction away from the bottom wall 111 (i.e., in the OZ' direction) at both ends along the second direction YY'. The outer rail 110 also includes two second bending walls 117, which are connected to one end of the two first bending walls 116 away from the corresponding side wall 112 in a one-to-one correspondence. The second bending walls 117 are bent relative to the corresponding first bending walls 116 in a direction away from the bottom wall 111 (i.e., in the OZ' direction) to limit the corresponding second matching walls 124 in the second direction YY', so that the position of the inner rail 120 is limited between the two second bending walls 117, thereby ensuring that the inner rail 120 can move relative to the outer rail 110 along the first direction XX'.

[0077] The second bending wall 117 and the corresponding first bending wall 116 may be integrally formed.

[0078] Please refer to Figure 2 In one embodiment, the outer rail 110 also includes two third bending walls 118, and the two third bending walls 118 are connected to one end of the two second bending walls 117 away from the corresponding first bending wall 116, and the third bending walls 118 are bent toward the inner side of the groove 113 along the second direction YY' relative to the corresponding second bending walls 117, so as to stop the second matching wall 124 from moving away from the bottom wall 111, thereby preventing the inner rail 120 from separating from the outer rail 110 in the direction away from the bottom wall 111 (i.e., the OZ' direction).

[0079] The third bending wall 118 and the corresponding second bending wall 117 may be integrally formed.

[0080] In this embodiment, the inner rail 120 and the middle rail 140 are respectively moved and matched with the outer rail 110 along the first direction XX' by the joint action of the first bending wall 116, the second bending wall 117 and the third bending wall 118. At the same time, the rolling element 130 can be clamped between the inner surface 121 of the inner rail 120 and the bottom wall 111 to bear the weight of the chassis.

[0081] Please combine Figures 4 to 7The slide rail further includes: an outer stopper 117, a rotating member 150, a lever 160 and an elastic member 170. The outer stopper 117 is disposed on the outer rail 110. The rotating member 150 is rotatably connected to the inner rail 120, and the rotating member 150 has a first angle and a second angle of rotation relative to the inner rail 120. The lever 160 is located between the inner rail 120 and the outer rail 110. The lever 160 is connected to the inner rail 120 through the elastic member 170, and the elastic deformation of the elastic member 170 allows the lever 160 to reciprocate along the first direction XX', so that the lever 160 can drive the rotating member 150 to switch between the first angle and the second angle.

[0082] The opposite direction of the first direction XX' (ie, the OX direction) is defined as the direction in which the chassis of the blade server is pulled out of the cabinet. The process of pulling the chassis out of the cabinet is divided into a first stage and a second stage in chronological order.

[0083] In the first stage, no external force is applied to the elastic member 170, the elastic member 170 is in a natural state, the lever 160 is in a first position relative to the inner rail 120, and the rotating member 150 is at a first angle. The inner rail 120 moves with the chassis in the opposite direction of the first direction XX' (i.e., the OX direction), so that the lever 160 and the rotating member 150 move with the inner rail 120 in the opposite direction of the first direction XX' (i.e., the OX direction) until the rotating member 150 connected to the inner rail 120 reaches the location of the outer stopper 117, and the outer stopper 117 can stop the rotating member 150 at the first angle from moving in the opposite direction of the first direction XX' (i.e., the OX direction), thereby stopping the inner rail 120 from moving in the opposite direction of the first direction XX' (i.e., the OX direction), that is, stopping the chassis from moving in the opposite direction of the first direction XX' (i.e., the OX direction). In this way, personal injury caused by the chassis rushing out of the cabinet quickly due to inertia during the process of being pulled out of the cabinet can be prevented, that is, the outer stopper 117 plays a buffering role for the chassis.

[0084] After the first stage, the lever 160 can be moved to overcome the elastic force of the elastic member 170, so that the lever 160 moves relative to the inner rail 120 to the second position along the first direction XX'. When the lever 160 moves from the first position to the second position, it drives the rotating member 150 to rotate from the first angle to the second angle, so that the outer stopper 117 releases the rotating member 150. At this time, the rotating member 150 can move in the opposite direction of the first direction XX' (i.e., the OX direction), and the inner rail 120 and the chassis can move in the opposite direction of the first direction XX' (i.e., the OX direction), so that the chassis enters the second stage of movement and continues to be pulled out of the cabinet in the second stage, that is, the chassis and the inner rail 120 move in the opposite direction of the first direction XX' (i.e., the OX direction) until the chassis moves out of the cabinet.

[0085] The elastic member 170 may be a coil spring, an elastic rubber strip or other elastic structures.

[0086] Please refer to Figure 5 and Figure 8 In one embodiment, a slide groove 161 inclined to the first direction XX' is provided on the lever 160, and a sliding portion (not shown) is provided at one end of the rotating member 150. The sliding portion is slidably matched with the slide groove 161. When the lever 160 moves along the first direction XX', the sliding portion and the slide groove 161 can be slidably matched to enable the rotating member 150 to switch between the first angle and the second angle.

[0087] In other embodiments, the two ends of the connecting rod may be rotatably connected to the rotating member and the shifting rod respectively, so that when the shifting rod moves along the first direction, the connecting rod can also drive the rotating member to switch between the first angle and the second angle.

[0088] Please refer to Figure 5 and Figure 7 In one embodiment, a limit hook 152 is provided on the rotating member 150. When the rotating member 150 rotates to a first angle, the limit hook 152 hooks the outer stopper 117 in the opposite direction of the first direction XX' (i.e., the OX direction), so that the limit hook 152 is stopped by the outer stopper 117. When the rotating member 150 rotates to a second angle, the limit hook 152 moves to one side of the outer stopper 117 along the second direction YY', and is misaligned with the outer stopper 117 in the second direction YY', so that the limit hook 152 is not stopped by the outer stopper 117 in the first direction XX', that is, the outer stopper 117 releases the rotating member 150.

[0089] Please refer to Figure 8 In one embodiment, the inner rail 120 is provided with an avoidance groove 125, and the position of the avoidance groove 125 corresponds to the slide groove 161. The sliding part passes through the slide groove 161 and extends into the avoidance groove 125. The setting of the avoidance groove 125 allows the size of the sliding part to be made longer, so as to avoid the sliding part and the slide groove 161 from being out of engagement as much as possible.

[0090] Please refer to Figure 5 In one embodiment, a dial button 162 is provided on the lever 160 to facilitate the lever 160 to move in the first direction XX'.

[0091] Please refer to Figure 5 In one embodiment, a guide groove 163 is provided on the lever 160, and a guide portion 126 is provided on the inner rail 120. The guide portion 126 and the guide groove 163 are slidably matched along the first direction XX', so as to guide the lever 160 to accurately move along the first direction XX'.

[0092] An embodiment of the present application provides a blade server, comprising a cabinet, a chassis, and the slide rail of any one of the above embodiments, wherein at least the lower end of the chassis is slidably connected to the cabinet through the corresponding slide rail.

[0093] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0094] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A slide rail, applied to a blade server, characterized in that: The slide rail comprises: An outer rail, the outer rail comprising a bottom wall and two side walls connected to each other, the two side walls and the bottom wall forming a groove sunken in the vertical direction, the outer rail being used to connect to the cabinet of the blade server; an inner rail, the inner rail being movably matched with the groove along a first direction, the inner rail having an inner surface opposite to the bottom wall, the inner rail being used to connect with an end of a chassis of the blade server along a vertical direction, the first direction being along a horizontal direction; and A plurality of rolling elements, wherein the rolling elements are located between the inner surface and the bottom wall, and the inner surface and the bottom wall respectively cooperate with the rolling elements in a rolling manner; A first limiting groove extending along the first direction is formed on the inner surface, and the first limiting groove cooperates with the rolling element to limit the position of the rolling element along a second direction, wherein the second direction is along a horizontal direction and perpendicular to the first direction; A second limiting groove extending in the first direction is formed on the bottom wall, and the second limiting groove cooperates with the rolling element to limit the position of the rolling element along the second direction; An outer stopper, disposed on the outer rail; A rotating member connected to the inner rail and having a first angle and a second angle of rotation relative to the inner rail; A lever, the lever being located between the inner rail and the outer rail; an elastic member, wherein the lever is connected to the inner rail through the elastic member, and the lever is allowed to reciprocate along the first direction through elastic deformation of the elastic member, so that the lever can drive the rotating member to switch between the first angle and the second angle; Wherein, when the rotating member is at the first angle, the outer stopper can stop the rotating member from moving in the opposite direction of the first direction, and the opposite direction of the first direction is defined as the direction in which the chassis of the blade server is pulled out of the cabinet; when the rotating member is at the second angle, the outer stopper can release the rotating member; The lever is provided with a slide groove inclined to the first direction, and one end of the rotating member is provided with a sliding portion; when the lever moves along the first direction, the sliding cooperation between the sliding portion and the slide groove can enable the rotating member to switch between the first angle and the second angle.

2. The slide rail according to claim 1, characterized in that: It also includes a middle rail located in the groove, the middle rail and the groove move together along the first direction, the middle rail is provided with a mounting hole corresponding to the rolling element, and the rolling element is installed in the corresponding mounting hole.

3. The slide rail according to claim 2, characterized in that: Both ends of the middle rail along the second direction respectively have first matching walls bent in a direction away from the bottom wall; The outer rail also includes two first bending walls, which are connected one by one to one with one end of the two side walls facing away from the bottom wall. The first bending walls are bent toward the inner side of the groove along the second direction relative to the corresponding side walls, so as to stop the first matching wall from moving in the direction away from the bottom wall.

4. The slide rail according to claim 3, characterized in that: The two ends of the inner rail along the second direction respectively have second matching walls bent in a direction away from the bottom wall; The outer rail also includes two second bending walls, which are connected one by one to one with one end of the two first bending walls away from the corresponding side walls, and the second bending walls are bent relative to the corresponding first bending walls in a direction away from the bottom wall to limit the corresponding second mating wall in the second direction.

5. The slide rail according to claim 4, characterized in that: The outer rail also includes two third bending walls, which are connected one by one to one with one end of the two second bending walls away from the corresponding first bending wall, and the third bending walls are bent along the second direction toward the inner side of the groove relative to the corresponding second bending walls, so as to stop the second mating wall from moving in the direction away from the bottom wall.

6. The slide rail according to claim 1, characterized in that: The inner rail is provided with an avoidance groove, the position of the avoidance groove corresponds to the slide groove, and the sliding part passes through the slide groove and extends into the avoidance groove.

7. The slide rail according to claim 1, characterized in that: A limit hook is provided on the rotating member, and when the rotating member is at the first angle, the outer stop portion can stop the limit hook from moving in the opposite direction of the first direction; when the rotating member is rotated to the second angle, the limit hook and the outer stop portion are misaligned in the second direction so that the outer stop portion releases the limit hook, wherein the second direction is along the horizontal direction and perpendicular to the first direction.

8. A blade server, characterized in that: It comprises a cabinet, a chassis and the slide rail according to any one of claims 1 to 7, wherein at least the lower end of the chassis is slidably connected to the cabinet through the corresponding slide rail.

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