CN113835482B - HBA card tool-free locking device and HBA card mounting structure - Google Patents

Abstract

The invention discloses an HBA card tool-free locking device and an HBA card installation structure, which belong to the technical field of servers, and include an HBA card bracket. Rail; the inner side of the side rail is provided with a side rail groove, and the left and right sides of the middle rail are provided with a middle rail groove; the HBA card slides and guides through the corresponding side rail groove and the middle rail groove, and is connected with the HBA card The connecting plate at the rear end of the bracket is plugged in; the middle rail is provided with an elastic locking piece that abuts and limits the front end of the HBA card. The HBA card can be quickly disassembled and assembled without tools, saving manpower and material resources; no additional space is required, and only the space above the front end of the middle track is used to realize the ultimate high-density assembly of the internal space of the server. The overall structure is simple, the operation is convenient, and the practicability is good. .

Description

HBA card tool-free locking device and HBA card installation structure

technical field

The invention belongs to the technical field of servers, in particular to an HBA card tool-free locking device and an HBA card installation structure.

Background technique

The HBA card is a host bus adapter (Host Bus Adapter, HBA). The HBA card is a circuit board or integrated circuit adapter that provides input/output processing and physical connections between servers and storage devices. Because the HBA offloads the main processor with data storage and retrieval tasks, it can improve server performance. An HBA and its associated disk subsystem are sometimes referred to together as a disk channel. Simply put, the HBA card is the link between the storage and computing layers, so it is widely used on storage servers.

The HBA card is usually locked by screws. It takes time and effort to disassemble and install the HBA card, which will greatly increase labor costs and reduce work efficiency.

However, the tool-free installation structure of the HBA card in the prior art occupies a large space inside the server, and is not suitable for the compact space arrangement inside the server.

Contents of the invention

In order to solve the above-mentioned technical problems today, the present invention provides an HBA card tool-free locking device and an HBA card installation structure, which can quickly disassemble and assemble the HBA card without tools, and occupy a small space, which can meet the internal space layout of the server.

The present invention is achieved by the following technical solutions on the one hand:

A tool-free locking device for an HBA card, comprising an HBA card bracket, a middle rail is provided in the middle of the HBA card bracket, and side rails are respectively provided on the left and right sides of the HBA card bracket; side rail grooves are provided on the inside of the side rails , the left and right sides of the middle rail are provided with middle rail grooves; the HBA card is slid and guided through the corresponding side rail grooves and middle rail grooves, and is inserted into the connecting plate at the rear end of the HBA card bracket; the middle rail There is an elastic locking piece on the front of the HBA card to limit the abutment of the front end of the HBA card. It greatly saves the space occupied by the installation of two HBA cards, and the structure design is compact; the front ends of the two HBA cards are abutted and limited by the elastic locking parts, which can realize the firm locking of the HBA cards and ensure the reliable connection between them and the connection board Resilience; the elastic deformation of the elastic lock can release the restriction on the HBA card and realize the convenient removal of the HBA card. The overall structure is simple, the operation is convenient, and the HBA card can be disassembled and assembled quickly without tools, which greatly saves the manpower and material resources of assembly; it does not need to occupy other space inside the server, and only uses the small space above the front end of the middle rail to realize The ultimate high-density assembly of the internal space of the server.

As a further improvement of the present invention, a handle is further provided on the middle track; the handle supports the elastic locking member and deforms the elastic locking member to unlock the front end of the HBA card. The support deformation of the elastic lock is realized through the handle, so as to realize the quick tool-free disassembly and assembly of the HBA card and ensure the reliable and stable operation.

A further improvement of the present invention is that the elastic locking member is in a Z-shaped structure, and its rear end is connected to the middle track; the handle is connected to the middle track through a rotating pin, and the rotating pin is located on the Inside the elastic lock piece, the handle is provided with a support boss; by turning the handle, the support boss supports the elastic lock piece upwards, and the front end of the elastic lock piece is tilted upward to realize Unlock the front end of the HBA card. By turning the handle, the support boss supports the elastic lock piece upwards, and the lower front part of the elastic lock piece is tilted upwards to allow the path for dismounting and installing the HBA card, so that the HBA card can be conveniently disassembled and assembled without tools; The structure is simple, the operation is convenient and easy to realize.

A further improvement of the present invention is that the handle is also provided with a limiting boss, and the middle rail is provided with a chamfered surface; when the supporting boss deforms the elastic lock, the limiting The positioning boss fits with the chamfered surface to limit the rotation of the handle. When disassembling and installing the HBA card, turn the handle so that the supporting boss supports the elastic locking piece upwards, and the limiting boss is fitted with the chamfered surface, so that the limiting handle rotates to ensure the reliability of use.

A further improvement of the present invention is that the direction of the supporting boss is consistent with the handle; the angle between the limiting boss and the supporting boss is an obtuse angle. It is easy to form, has good structural performance, and ensures the realization of the limit function.

As a further improvement of the present invention, the rear part of the elastic locking member is provided with a protrusion that limits the upward rotation of the handle, and the middle track is provided with a support seat that supports and limits the handle. In the state of locking the HBA card, the handle is clamped and limited by the support seat and the protrusion; the position of the handle is firm and stable, greatly reducing the space occupied by the handle, and it is convenient to rotate the handle to improve the convenience of use.

As a further improvement of the present invention, a notch is provided at the end of the handle away from the revolving pin, and anti-slip protrusions are provided on the upper and lower sides of the handle. By engaging the fingers with the notch, the handle can be rotated conveniently, thereby realizing the support deformation of the elastic lock by the supporting boss, that is, realizing the convenient unlocking of the HBA card; ensuring the convenience and reliability of the operation.

A further improvement of the present invention is that a number of support platforms and side rail positioning posts are provided on the side rails; a screw hole post is embedded and fixed at the lower end of the side rail positioning posts. The screw passes through the HBA card bracket upwards, and is screwed and fixed with the screw hole column to realize the firm installation of the side rail; through the guiding insertion of the side rail positioning column and the positioning hole opened on the HBA card bracket, the side rail installation is realized Convenience and precision.

A further improvement of the present invention is that the bottom of the middle rail is provided with several fixing posts and middle rail positioning posts; the HBA card bracket is punched upward to form a boss, and the lower part of the boss forms a groove; An installation hole is provided, and the fixing column is inserted into the installation hole, and fixedly installed with the installation hole by hot melting. The hot-melt method makes the installation of the middle rail reliable, accurate and convenient; the boss raises the middle rail to leave a certain gap between the HBA card and the HBA card bracket, ensuring sufficient installation space and good heat dissipation effect; the middle rail The positioning column is guided and inserted into the positioning hole opened on the boss to realize the convenience and accuracy of the middle rail installation.

Another aspect of the present invention is achieved through the following technical solutions:

An HBA card installation structure, comprising a housing, a main board installed on the housing, and the HBA card tool-free locking device; one side of the HBA card bracket is provided with a card slot, and the other side is provided with a The support frame for supporting and positioning the housing; the housing is provided with an I-shaped nail engaged with the card slot for positioning, the main board is provided with a positioning frame, and the HBA card bracket and the positioning frame pass through Thumb screw installation. Through the engagement of the I-shaped nails with the card slots, the support and positioning of the support frame and the housing, and the fixed connection with the positioning frame through the hand-turning screws, the HBA card bracket is firmly and stably fixed and installed above the main board, leaving a certain gap. Compact structure design, reasonable space layout, good heat dissipation effect, good practicability; quick and tool-free disassembly and assembly can be realized.

As can be seen from the above technical solutions, the beneficial effects of the present invention are:

The overall structure is simple, the operation is convenient, and the HBA card can be quickly disassembled and assembled without tools, which greatly saves the manpower and material resources of assembly; it greatly saves the space occupied by the installation of two HBA cards, and the structure design is compact; The front end of the card is abutted to limit the position, which can realize the firm locking of the HBA card and ensure the reliability of its connection with the connection board; the elastic deformation of the elastic lock can release the limit of the HBA card and realize the connection of the HBA card. The card can be removed conveniently; without occupying other space inside the server, only the small space above the front end of the middle track is used to realize the extremely high-density assembly of the internal space of the server. Through the engagement of the I-shaped nails with the card slots, the support and positioning of the support frame and the housing, and the fixed connection with the positioning frame through the hand-turning screws, the HBA card bracket is firmly and stably fixed and installed above the main board, leaving a certain gap. The space layout is reasonable to ensure a good heat dissipation effect.

Description of drawings

In order to illustrate the technical solution of the present invention more clearly, the accompanying drawings that need to be used in the description will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. As far as people are concerned, other drawings can also be obtained based on these drawings on the premise of not paying creative work.

FIG. 1 is a schematic structural diagram of an HBA card locking device according to a specific embodiment of the present invention.

Fig. 2 is a schematic diagram of the bottom structure of the HBA card bracket according to the specific embodiment of the present invention.

FIG. 3 is a schematic diagram of the front view of FIG. 1 .

Fig. 4 is a schematic diagram of the locking state of the elastic locking member according to the specific embodiment of the present invention.

Fig. 5 is a schematic diagram of a side track structure according to a specific embodiment of the present invention.

Fig. 6 is a schematic diagram of the unlocked state of the elastic locking member according to the specific embodiment of the present invention.

FIG. 7 is a schematic diagram of an installation structure of an HBA card according to a specific embodiment of the present invention.

In the accompanying drawings: 1. HBA card, 2. HBA card bracket, 21. Boss, 22. Groove, 23. Mounting hole, 24. Card slot, 25. Wire slot, 3. Side track, 31. Side Rail groove, 32, support platform, 33, screw hole column, 34, side rail positioning column, 4, middle track, 41, middle rail groove, 42, fixed column, 43, middle rail positioning column, 44, chamfering surface, 45. Support seat, 5. Handle, 51. Support boss, 52. Limit boss, 53. Repin, 54. Notch, 6. Elastic lock piece, 61. Protrusion, 7. Thumb screw, 8, connecting plate, 9, support frame, 10, main board, 11, housing, 12, H-shaped nail, 13, positioning frame.

Detailed ways

In order to make the purpose, 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 accompanying drawings in this specific embodiment. Obviously, the implementation described below Examples are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in this patent, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this patent.

As shown in Figures 1 and 3, the present invention discloses a tool-free locking device for HBA cards, which includes a horizontally installed HBA card bracket 2, the middle part of the HBA card bracket 2 is equipped with a middle rail 4 in the front and rear directions, and the HBA card The left and right sides of the bracket 2 are respectively equipped with side rails 3 in the front and rear directions; the inner sides of the two side rails 3 are provided with side rail grooves 31, and the left and right sides of the middle rail 4 are provided with middle rail grooves 41; The rail groove 31 and the left middle rail groove 41 limit the front and rear sliding guide of the left HBA card 1, and the right side rail groove 31 and the right middle rail groove 41 limit the front and rear sliding guide of the right HBA card 1. The joint installation of two HBA cards 1 can be realized; the connecting plate 8 plugged with the rear end of the HBA card 1 is fixedly installed at the rear end of the HBA card bracket 2; Connect to the limited elastic lock piece 6.

By setting two side rails 3 and one middle rail 4 on the HBA card bracket 2, and realizing the compact installation of two HBA cards 1 through the rail grooves on them, the space occupied by the two HBA cards 1 can be greatly saved. The structure design is compact; and the front end of the two HBA cards 1 is abutted and limited by the elastic lock piece 6 on the upper front end of the middle track 4, which can realize the firm locking of the HBA card 1 and ensure the reliable connection between it and the connecting plate 8 When removing the HBA card 1, only the elastic locking member 6 can be moved to make it elastically deformed, and the restriction on the HBA card 1 is released, and the HBA card 1 slides forward along the side rail groove 31 and the middle rail groove 41 Guide, you can easily remove the HBA card 1. The overall structure is simple, the operation is convenient, and the HBA card 1 can be quickly disassembled without tools, which greatly saves the manpower and material resources of assembly; it does not need to occupy other space inside the server, but only uses the small space above the front end of the middle rail 4 , to achieve the ultimate high-density assembly of the internal space of the server.

Wherein, the middle track 4 is also provided with a handle 5; the handle 5 supports the elastic locking member 6 and deforms the elastic locking member 6, so as to realize the unlocking of the front end of the HBA card 1 . The handle 5 realizes the supporting deformation of the elastic locking member 6, thereby realizing quick tool-free disassembly and assembly of the HBA card 1 and ensuring reliable and stable operation.

As shown in Fig. 4, wherein, the number of the elastic locking parts 6 is two, arranged opposite to each other on the left and right, and in a Z-shaped structure, the rear lower end of the elastic locking parts 6 is integrally formed with the upper side of the middle track 4, and the elastic locking The lower end of the front part of the fastener 6 blocks the front end of the middle rail groove 41 (in a natural state); the handle 5 is rotationally connected with the middle rail 4 through a revolving pin 53, and the revolving pin 53 is positioned at the elastic lock. 6 inside, the handle 5 is located between the two elastic lock parts 6; the handle 5 is provided with a support boss 51 and a limit boss 52, and the front end of the middle track 4 is chamfered, thereby forming a chamfer Angle face 44. When the HBA card 1 is locked, as shown in Figure 4, the supporting boss 51 is not in contact with the elastic locking member 6, and the elastic locking member 6 is in a natural state without deformation. The lower front part of the elastic locking member 6 abuts and locks the front ends of the two HBA cards 1 respectively, effectively preventing the HBA cards 1 from slipping forward along the rail groove, and ensuring the reliable and stable installation of the HBA cards 1 . When removing the HBA card 1, by turning the handle 5 upwards, the support boss 51 supports the elastic latch 6 upwards, and at the same time, the limit boss 52 fits with the chamfered surface 44, and ensures that the support boss 51 is in contact with the elastic The included angle of the rear side of the horizontal section of the locking member 6 is slightly less than 90 degrees. By pressing down the elastic locking member 6, the limit handle 5 rotates backward, and the limit boss 52 fits with the chamfered surface 44, thereby The limit handle 5 is rotated forward, thereby realizing the reliable limit of the rotation of the handle 5; the lower end of the front part of the elastic locking member 6 is tilted upwards, releasing the lock on the front end of the HBA card 1, and allowing the HBA card 1 to move forward The sliding path is specifically shown in Figure 6. Pull the HBA card 1 forward to realize the convenient and tool-free removal of the HBA card 1. Similarly, when the HBA card 1 is installed, the supporting boss 51 supports the elastic locking member 6 upwards, and the lower end of the front part of the elastic locking member 6 is tilted upwards, allowing the path for the HBA card 1 to be slid and installed backwards, thereby realizing Easy tool-less installation of HBA cards1.

As shown in FIG. 4 , the supporting boss 51 is in the same direction as the handle 5 ; the angle between the limiting boss 52 and the supporting boss 51 is an obtuse angle of 135 degrees. The handle 5, the support boss 51 and the limit boss 52 are integrally injection-molded, easy to form, good in structural performance, and ensure the realization of the limit function.

In one embodiment, at least one elastic locking member 6 is provided with a protrusion 61 on the inner side of the rear part to limit the upward rotation of the handle 5, and when the HBA card 1 is locked, the elastic locking boss 52 and the elastic lock The buckle 6 is in contact, but the elastic lock 6 will not be deformed, so as to limit the downward rotation of the handle 5; in the absence of external force, the handle 5 is always in a horizontal backward state; the position of the handle 5 is limited It is reliable and stable, greatly reduces the occupied space of the handle 5, and is convenient to rotate the handle 5, improving the convenience of use.

In another embodiment, as shown in Figures 4 and 6, at least one elastic locking member 6 is provided with a protrusion 61 on the inner side of the rear part to limit the upward rotation of the handle 5, and the middle track 4 is provided with a pair of handles. 5 support bases 45 for upward support. In the locked state of the HBA card 1, the handle 5 is clamped and limited by the support seat 45 and the protrusion 61, so that the handle 5 is always in a backward horizontal state without external force; the position limit of the handle 5 is firm and stable, The occupied space of the handle 5 is greatly reduced, and the handle 5 is convenient to be rotated to improve the convenience of use.

Wherein, as shown in FIGS. 4 and 6 , the end of the handle 5 away from the rotating pin 53 is provided with a concave arc-shaped notch 54 , and the upper and lower sides of the handle 5 are provided with anti-slip protrusions. By engaging the fingers with the concave arc-shaped notch 54, the convenient rotation operation of the handle 5 can be realized (the fingers provide a certain lifting force to make the handle 5 cross the protrusion 61 and rotate upwards and forwards), thereby realizing the support of the protrusion. The supporting deformation of the elastic locking member 6 by the platform 51 realizes the convenient unlocking of the HBA card 1, and ensures the convenience and reliability of the operation.

As shown in Fig. 5, several supporting platforms 32 and side rail positioning columns 34 are arranged on the side rail 3, and the supporting platforms 32 and the side rail positioning columns 34 are arranged at intervals to ensure that the side rail 3 is positioned and installed. Accuracy and stability; the lower end of the side rail positioning column 34 is embedded with a screw hole column 33 . The screw passes through the HBA card bracket 2 upwards, and is screwed and fixed with the screw hole column 33 to realize the firm installation of the side rail 3; the side rail positioning column 34 is guided and inserted into the positioning hole opened on the HBA card bracket 2 , to realize the convenience and accuracy of the installation of the side rail 3; the bottom of the support table 32 protrudes from the lower surface of the side rail 3, effectively raising the installation position of the HBA card 1, so that the HBA card 1 and the HBA card There is a certain gap between the brackets 2 to ensure sufficient installation space and good heat dissipation effect.

As shown in Figures 2-4, the bottom of the middle rail 4 is provided with several fixing columns 42 and middle rail positioning columns 43, and the fixing columns 42 and the middle rail positioning columns 43 are arranged at intervals to ensure the accuracy and accuracy of the middle rail 4 installation. Stability; the middle part of the HBA card bracket 2 is stamped upwards to form a boss 21, and the bottom of the boss 21 forms a groove 22; the boss 21 is provided with a mounting hole 23, and the lower edge of the mounting hole 23 is inverted There are chamfers; the fixing column 42 is inserted into the installation hole 23, and is fixedly installed with the installation hole 23 by hot melting; the positioning and installation of the middle rail 4 is firm, accurate and convenient. The boss 21 raises the middle rail 4 so that there is a certain gap between the HBA card 1 and the HBA card bracket 2 to ensure sufficient installation space and good heat dissipation effect; It fits with the chamfer of the lower edge of the mounting hole 23 to ensure the reliability of the hot-melt fixation; and the convex hull formed by the hot-melt is completely in the groove 22, and will not protrude downward from the lower surface of the HBA card bracket 2, effectively avoiding Facing interference from bottom components. The positioning column 43 of the middle rail guides and fits with the positioning hole provided on the boss 21 to realize the convenience and accuracy of the installation of the middle rail 4 .

Wherein, the middle rail 4 and the side rail 3 are made of antistatic ABS material, and are integrally formed by injection molding respectively. It is easy to manufacture, has a long service life, effectively prevents electrostatic interference, and has good safety.

As shown in Figure 7, the present invention also discloses a HBA card installation structure, including a housing 11, a main board 10 installed on the housing 11, and the HBA card tool-free locking device; the HBA card bracket 2 The front part and the middle part of the left side are provided with an L-shaped card slot 24, and the right side middle part of the HBA card bracket 2 is equipped with a support frame 9 supporting and positioned with the housing 11 at the bottom; The card slot 24 is engaged with the positioned I-shaped nail 12, the main board 10 is fixedly installed with a positioning frame 13, and the rear part of the right side of the HBA card bracket 2 and the positioning frame 13 are fixedly installed by rotating the hand screw 7. . The HBA card bracket 2 is securely and stably fixed and installed on the motherboard 10 as a whole through the engagement of the H-shaped nail 12 with the card slot 24, the support and positioning of the support frame 9 and the housing 11, and the fixed connection with the positioning frame 13 through the hand screw 7. Above, with a certain gap, the structure design is compact and the space layout is reasonable, which ensures good heat dissipation effect and good practicability; it can realize quick tool-free disassembly and assembly. Wherein, the rear side of the HBA card bracket 2 is provided with an upward flange, and a wire groove 25 is opened on the flange, and the cable connecting the main board 10 and the connection board 8 is arranged in the wire groove 25, which is compact in design and occupies a small space.

The HBA card tool-free locking device and HBA card installation structure, the overall structure is simple, easy to operate, can realize the fast tool-free disassembly and assembly of the HBA card, greatly saving the manpower and material resources of assembly; greatly saving the installation space of two HBA cards Occupancy, compact structure design; the front end of the two HBA cards is abutted and limited by the elastic lock, which can realize the firm locking of the HBA card and ensure the reliability of its connection with the connecting plate; make the elastic lock elastic Deformation can release the restriction on the HBA card, and realize the convenient removal of the HBA card; without occupying other space inside the server, it only uses the tiny space above the front end of the middle track to achieve the ultimate high-density combination of the internal space of the server assembly. Through the engagement of the I-shaped nails with the card slots, the support and positioning of the support frame and the housing, and the fixed connection with the positioning frame through the hand-turning screws, the HBA card bracket is firmly and stably fixed and installed above the main board, leaving a certain gap. The space layout is reasonable to ensure a good heat dissipation effect.

Each embodiment in this specification is described in a progressive manner, each embodiment focuses on the differences from other embodiments, and the same and similar parts of each embodiment can be referred to each other.

The terms "upper", "lower", "outer side" and "inner side" in the specification and claims of the present invention and the above drawings are used to distinguish the relative relationship in position if they exist, and they do not need to be qualitative. It is to be understood that the data so used are interchangeable under appropriate circumstances such that the embodiments of the invention described herein can be practiced in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having", as well as any variations thereof, are intended to cover a non-exclusive inclusion.

The above description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention will not be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (8)

1. An HBA card tool-free locking device, characterized in that it includes an HBA card bracket (2), the middle part of the HBA card bracket (2) is provided with a middle track (4), and its left and right sides are respectively equipped with Side rails (3); side rail grooves (31) are opened on the inner side of the side rails (3), and middle rail grooves (41) are opened on the left and right sides of the middle rail (4); HBA card (1) Slide and guide through the corresponding side rail grooves (31) and middle rail grooves (41), and plug into the connecting plate (8) at the rear end of the HBA card bracket (2); the middle rail (4) is provided with There is an elastic lock piece (6) that abuts against the front end of the HBA card (1); a handle (5) is also provided on the middle track (4); the handle (5) is on the elastic lock piece (6) Supporting and deforming the elastic locking member (6) to unlock the front end of the HBA card (1); the elastic locking member (6) has a Z-shaped structure, and its rear end is The middle track (4) is connected; the handle (5) is rotatably connected to the middle track (4) through a revolving pin (53), and the revolving pin (53) is located inside the elastic lock (6), The handle (5) is provided with a support boss (51); by turning the handle (5), the support boss (51) supports the elastic lock piece (6) upward, and the elastic The front end of the locking member (6) is tilted upwards to unlock the front end of the HBA card (1). 2. The HBA card tool-free locking device according to claim 1, characterized in that, the handle (5) is also provided with a limiting boss (52), and the middle track (4) is provided with a chamfer surface (44); when the supporting boss (51) supports and deforms the elastic latch (6), the limiting boss (52) fits with the chamfered surface (44), and The rotation of the handle (5) is limited. 3. The HBA card tool-free locking device according to claim 2, characterized in that, the support boss (51) is in the same direction as the handle (5); the limit boss (52) is in the same direction as the handle (5) Said support boss (51) included angle is an obtuse angle. 4. The tool-free locking device for HBA cards according to claim 2, characterized in that, the rear part of the elastic locking member (6) is provided with a protrusion (61) to limit the upward rotation of the handle (5). ), the middle track (4) is provided with a support base (45) for supporting and limiting the handle (5). 5. The HBA card tool-free locking device according to claim 1, characterized in that, a notch (54) is opened at the end of the handle (5) away from the revolving pin (53), and the handle (5) ) are provided with non-slip convex strips on the upper and lower sides. 6. The HBA card tool-free locking device according to claim 1, characterized in that, the side rail (3) is provided with several supporting platforms (32) and side rail positioning columns (34); The lower end of the rail positioning post (34) is embedded with a screw post (33). 7. The HBA card tool-free locking device according to claim 1, characterized in that, the bottom of the middle rail (4) is provided with several fixing posts (42) and middle rail positioning posts (43); the HBA card The bracket (2) is punched upward to form a boss (21), and the lower part of the boss (21) forms a groove (22); the boss (21) is provided with a mounting hole (23), and the fixing column ( 42) Inserted in the installation hole (23), and fixedly installed with the installation hole (23) by hot melting. 8. An HBA card installation structure, characterized in that it includes a housing (11), a main board (10) installed on the housing (11), and the HBA card tool-free lock according to any one of claims 1-7 attached device; the HBA card bracket (2) has a card slot (24) on one side, and a support frame (9) supporting and positioning the housing (11) on the other side; the housing (11 ) is provided with an I-shaped nail (12) that engages with the card slot (24) and positioned, the main board (10) is provided with a positioning frame (13), and the HBA card bracket (2) is connected to the The positioning frame (13) is installed by screwing the hand screw (7).