Network server case

Abstract

The utility model discloses a network server case which comprises a first network server case shell and a second network server case shell, and guide blocks are fixedly installed on the upper surfaces of the inner walls of the first network server case shell and the second network server case shell and the lower surfaces of the outer walls of the first network server case shell and the second network server case shell respectively. And the guide blocks of the first network server case shell and the second network server case shell respectively penetrate through the first extension plate and the second extension plate in a sliding manner. Through the design of the first network server case shell and the second network server case shell, the network server case has the function of freely adjusting the size of the case space, and the size of the case body can be adjusted, so that a worker can maintain and upgrade equipment more conveniently; and the sufficient internal space enables the operations of replacing elements, cleaning equipment and the like to be easier, the maintenance time is shortened, the maintenance difficulty is reduced, and the positions and the number of the electrical elements can be flexibly configured according to actual requirements.

Description

Technical Field

[0001] The utility model relates to the field of chassis and network server technology, in particular to a network server chassis. Background Art

[0002] Common network server chassis are tower chassis and rack-mount chassis. Tower chassis are similar to ordinary desktop computer chassis and are suitable for small offices or personal use, while rack-mount chassis are more suitable for large environments such as data centers and can be stacked on a rack.

[0003] For example, the national authorized patent publication number CN211123888U discloses a network server chassis comprising a cabinet body and a cabinet door. The cabinet body is a trough body with an opening forward, and a mounting cavity is provided in the cabinet body. The cabinet door includes a door panel hinged to the cabinet body, and the rear side of the door panel abuts the front end of the cabinet body. A box body is provided on the door panel, and the rear portion of the box body is located in the mounting cavity. The box body is provided with a cavity, and an air outlet duct and an air inlet duct are provided in the cavity. An air inlet and an air outlet are provided on the front side wall of the box body, and the air outlet is connected to the air outlet duct. The air inlet is connected to the air outlet duct, and an exhaust fan and an air inlet fan are provided in the air outlet duct and the air inlet duct, respectively. A filter is provided in the air inlet duct, and the rear ends of the air outlet duct and the air inlet duct are both connected to the mounting cavity. Air enters and exits from the front of the network server chassis, providing good ventilation. The filter can prevent most of the dust in the air inlet duct from entering the installation cavity from the air inlet duct; setting the box body on the door panel can prevent most of the dust from entering the installation cavity from the gap between the cabinet body and the door panel, and has a good dust-proof effect.

[0004] However, during the use of the above-mentioned network server chassis, the staff cannot adjust the size of the chassis according to the placement space and the size of the electrical components. If the chassis size is fixed, space will be wasted. Sometimes the chassis is too large and the interior is empty, which not only wastes materials but also takes up space in the computer room. Sometimes the chassis is too small and cannot accommodate all the required electrical components, resulting in the need for additional chassis or racks, which in turn leads to low space utilization of the chassis. Utility Model Content

[0005] The purpose of the present invention is to provide a network server chassis to solve the problem raised in the above background technology that during use, the staff cannot adjust the size of the chassis according to the placement space and the size of the electrical components installed.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A network server chassis comprises: a first network server chassis shell and a second network server chassis shell, wherein guide blocks are fixedly mounted on the upper inner wall surface and the lower outer wall surface of the first network server chassis shell and the second network server chassis shell, respectively, and the guide blocks of the first network server chassis shell and the second network server chassis shell slide through a first extension plate and a second extension plate, respectively, and the first extension plate and the second extension plate are fixedly mounted on one end of the first network server chassis shell and the second network server chassis shell, respectively, so that the first network server chassis shell and the second network server chassis shell can slide inward and be pulled outward to expand by the guide blocks pulling the first extension plate and the second extension plate.

[0008] Wherein, a lower cover and an upper cover are rotatably mounted on the upper surfaces of the first network server chassis shell and the second network server chassis shell, respectively, and the upper cover and the lower surface are provided with a locking mechanism;

[0009] Among them, one end of the first extension plate and the second extension plate are fixedly installed with a limiting block, and the first extension plate and the second extension plate are respectively slidably installed in each other's limiting grooves through the limiting blocks. The limiting grooves are opened on both sides of the first network server chassis shell and the second network server chassis shell. One end of the limiting block of the second extension plate is fixedly installed with a pressing mechanism, and the pressing mechanism can press and lock one end of the first network server chassis shell.

[0010] Preferably, the first extension plate and the second extension plate are in an expansion shape and a contraction shape respectively, and the first extension plate in the expansion shape is slidably sleeved on the outer surface of the second extension plate in the contraction shape.

[0011] Preferably, the locking mechanism includes a first butterfly bolt, which is threadedly installed on the upper surface of the upper cover and can be threaded through the upper cover and installed into the docking plate. The docking plate is slidably installed in a sliding opening, and the sliding opening is opened on the upper surface of the lower cover.

[0012] Preferably, damping blocks are fixedly mounted on both sides of the outer surface of the docking plate, and the damping blocks are slidably mounted in damping grooves, and the damping grooves are opened on both sides of the sliding opening.

[0013] Preferably, during the process of stretching and retracting the first network server chassis shell and the second network server chassis shell through the first extension plate and the second extension plate, the docking plate can slide in the sliding opening until it is flush with the threaded column of the first butterfly bolt.

[0014] Preferably, when the first butterfly bolt is threadedly installed into the docking tray through the threaded column, the upper cover and the lower cover can be closed and fastened together.

[0015] Preferably, the pressing mechanism includes a C-shaped plate, which is fixedly mounted on one end of the limit block of the second extension plate, and a second butterfly bolt is threadedly mounted on one end of the C-shaped plate, and the threaded column of the second butterfly bolt can press on one side of the first network server chassis shell.

[0016] Preferably, the second butterfly bolt is suspended on one end of the first network server chassis shell through a U-shaped plate, so that the threaded column of the second butterfly bolt is flush with the anti-slip groove, and the anti-slip groove is opened on one end of the first network server chassis shell.

[0017] Preferably, the anti-slip groove can be pressed into by the threaded column top of the second butterfly bolt, so that it can press and lock the first network server chassis shell and the second network server chassis shell after being stretched or retracted.

[0018] Preferably, during the sliding of the first network server chassis shell and the second network server chassis shell in each other's limiting grooves by the limiting blocks, the U-shaped plate can drive the threaded column of the second butterfly bolt to always remain opposite to the anti-slip groove.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] 1. Through the design of the first network server chassis shell, the second network server chassis shell, the first extension plate, the second extension plate, the upper cover, the lower cover, the locking mechanism and the top pressing mechanism, if it is necessary to increase the space size in the chassis, the staff can stretch the first network server chassis shell and the second network server chassis shell to both sides, and the first network server chassis shell and the second network server chassis shell will slide in the first extension plate, the second extension plate and the limit groove through the guide block and the limit block, thereby increasing the distance between the first network server chassis shell and the second network server chassis shell, thereby increasing the space size of the entire chassis. If it is necessary to reduce the space, it can be achieved by pushing towards the center, and after the space size of the chassis is adjusted, the top can be rotated The pressing mechanism is actuated by the screw thread, and the pressing mechanism presses one end of the first server chassis shell by rotating the screw thread, thereby pressing and clamping the first server chassis shell and the second server chassis shell together, thereby limiting the current chassis space size. The staff can then close the lower cover and the upper cover in turn, and the upper cover will be pressed down and fit on the upper surface of the lower cover. The staff can then lock the lower cover and the upper cover together through the locking mechanism, and the locking force between the lower cover and the upper cover can also apply additional limiting force to the locking force between the first server chassis shell and the second server chassis shell, so as to ensure that the distance between the first server chassis shell and the second server chassis shell remains stable.

[0021] By being able to adjust the distance between the first network server chassis shell and the second network server chassis shell in this way, the staff can adjust the size of the chassis according to the placement space and the size of the electrical components to be installed. The staff can adjust the size of the chassis according to actual needs to avoid space waste. This not only makes better use of the computer room space, but also facilitates the reasonable placement of equipment and improves the efficiency of the overall layout. By adjusting the size of the chassis, the internal air circulation can be optimized, the heat dissipation effect can be improved, and the electrical components can be ensured to operate at a suitable temperature, thereby extending the service life of the equipment.

[0022] 2. Through the design of the first butterfly bolt, docking plate, damping block and sliding opening, when the box cover is closed after the space size of the chassis is adjusted, the staff can push or pull the docking plate in the sliding opening according to the distance between the first server chassis shell and the second server chassis shell, so that it is flush with the threaded column of the first butterfly bolt installed in the inner thread of the upper cover. Then, the upper cover can be turned over and fitted on the upper surface of the lower cover, and the first butterfly bolt is threadedly installed into the docking plate by rotating the first butterfly bolt, so that the lower cover and the upper cover can be locked together. The friction top pressure of the fit between the lower cover and the upper cover can also apply additional limiting force to the locking force between the first server chassis shell and the second server chassis shell, thereby achieving the function of ensuring that the upper cover and the lower cover are locked in the process of adjusting the distance between the first server chassis shell and the second server chassis shell.

[0023] 3. By designing the U-shaped plate, the second butterfly bolt and the anti-slip groove, when the space inside the chassis is increased, the staff can stretch the first server chassis shell and the second server chassis shell to both sides, and the first server chassis shell and the second server chassis shell will slide in the first extension plate, the second extension plate and the limiting groove through the guide block and the limit block. When the limit block at one end of the second extension plate slides in the limiting groove, it will drive the U-shaped plate at one end of the limit block to slide together, and the second butterfly bolt threadedly installed in the U-shaped plate will slide in the anti-slip groove opened on one side of the first server chassis shell, so that they can always maintain a relative state, and then the staff can rotate the second server chassis shell. The threaded column of the butterfly bolt is pressed into the anti-slip groove, and the convex teeth in the anti-slip groove will increase the limiting force between the threaded column of the second butterfly bolt, so that the first network server chassis shell and the second network server chassis shell can be pressed and clamped together, thereby realizing the function of limiting the current chassis space size. The adjustable box size makes it more convenient for staff to maintain and upgrade equipment. The ample internal space makes it easier to replace components, clean equipment, etc., reducing maintenance time and difficulty, so that it can flexibly configure the position and quantity of electrical components according to actual needs. This flexibility helps to quickly respond to different application needs and changes, and improve work efficiency and adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall structure of the network server chassis of the utility model;

[0025] Figure 2 This is a schematic structural diagram of the first extension plate and the second extension plate of the present invention;

[0026] Figure 3 This is a schematic structural diagram of the locking mechanism of the present invention;

[0027] Figure 4 It is a structural schematic diagram of the top pressing mechanism of the utility model.

[0028] In the figure: 1. First network server chassis shell; 101. Lower cover; 102. Sliding opening; 103. Damping groove; 104. First extension plate; 2. Second network server chassis shell; 201. Upper cover; 202. Second extension plate; 203. Limiting groove; 3. Locking mechanism; 301. First butterfly bolt; 302. Docking plate; 303. Damping block; 4. Pressing mechanism; 401. C-shaped plate; 402. Second butterfly bolt; 403. Anti-slip groove; 5. Guide block; 501. Limiting block. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] See also Figure 1-Figure 4 , the utility model provides the following technical solutions:

[0031] like Figure 1-Figure 2 As shown, a network server chassis includes: a first network server chassis shell 1 and a second network server chassis shell 2, wherein guide blocks 5 are fixedly mounted on the upper inner surface and the lower outer surface of the first network server chassis shell 1 and the second network server chassis shell 2, respectively. The guide blocks 5 of the first network server chassis shell 1 and the second network server chassis shell 2 slide through the first extension plate 104 and the second extension plate 202, respectively. The first extension plate 104 and the second extension plate 202 are fixedly mounted on one end of the first network server chassis shell 1 and the second network server chassis shell 2, respectively, so that the first network server chassis shell 1 and the second network server chassis shell 2 can slide inward and be pulled outward to expand by pulling the first extension plate 104 and the second extension plate 202 through the guide blocks 5.

[0032] The first network server chassis shell 1 and the second network server chassis shell 2 are rotatably mounted with a lower cover 101 and an upper cover 201 respectively on their upper surfaces, and a locking mechanism 3 is provided on the upper cover 201 and the lower surface;

[0033] Among them, one end of the first extension plate 104 and the second extension plate 202 are fixedly installed with a limiting block 501, and the first extension plate 104 and the second extension plate 202 are respectively slidably installed in each other's limiting groove 203 through the limiting block 501. The limiting groove 203 is opened on both sides of the first network server chassis shell 1 and the second network server chassis shell 2. One end of the limiting block 501 of the second extension plate 202 is fixedly installed with a pressing mechanism 4, which can press and lock one end of the first network server chassis shell 1.

[0034] The first extension plate 104 and the second extension plate 202 are in an expansion shape and a contraction shape respectively. The first extension plate 104 in the expansion shape is slidably mounted on the outer surface of the second extension plate 202 in the contraction shape.

[0035] Through the design of the first network server chassis shell 1, the second network server chassis shell 2, the first extension plate 104, the second extension plate 202, the upper cover 201, the lower cover 101, the locking mechanism 3 and the top pressing mechanism 4, if it is necessary to increase the space size in the chassis, the staff can stretch the first network server chassis shell 1 and the second network server chassis shell 2 to both sides, and the first network server chassis shell 1 and the second network server chassis shell 2 will slide in the first extension plate 104, the second extension plate 202 and the limit groove 203 through the guide block 5 and the limit block 501, thereby increasing the distance between the first network server chassis shell 1 and the second network server chassis shell 2, thereby increasing the space size of the entire chassis. If it is necessary to reduce the space, it can be achieved by pushing towards the center. After the space size of the chassis is adjusted, the top pressing mechanism can be rotated. The mechanism 4 is formed, and the pressing mechanism 4 presses one end of the first network server chassis shell 1 by rotating the thread, thereby pressing and clamping the first network server chassis shell 1 and the second network server chassis shell 2 together, so as to limit the current chassis space size. Then, the staff can close the lower cover 101 and the upper cover 201 in turn, and the upper cover 201 will be pressed down and fit on the upper surface of the lower cover 101. Then, the staff can lock the lower cover 101 and the upper cover 201 together through the locking mechanism 3. The locking force between the lower cover 101 and the upper cover 201 can also apply additional limiting force to the locking force between the first network server chassis shell 1 and the second network server chassis shell 2, so that the spacing between the first network server chassis shell 1 and the second network server chassis shell 2 can be kept stable.

[0036] By being able to adjust the distance between the first network server chassis shell 1 and the second network server chassis shell 2, the staff can adjust the size of the chassis according to the placement space and the size of the electrical components to be installed. The staff can adjust the size of the chassis according to actual needs to avoid space waste. This not only makes better use of the computer room space, but also facilitates the reasonable placement of equipment and improves the efficiency of the overall layout. By adjusting the size of the chassis, the internal air circulation can be optimized, the heat dissipation effect can be improved, and the electrical components can be ensured to operate at a suitable temperature, thereby extending the service life of the equipment.

[0037] like Figure 3 As shown, the locking mechanism 3 includes a first butterfly bolt 301, which is threadedly installed on the upper surface of the upper cover 201 and can be threaded through the upper cover 201 and threaded into the docking plate 302. The docking plate 302 is slidably installed in the sliding opening 102, and the sliding opening 102 is opened on the upper surface of the lower cover 101.

[0038] Damping blocks 303 are fixedly mounted on both sides of the outer surface of the docking plate 302 . The damping blocks 303 are slidably mounted in the damping grooves 103 . The damping grooves 103 are opened on both sides of the sliding opening 102 .

[0039] When the first network server chassis 1 and the second network server chassis 2 are stretched and retracted by the first extension plate 104 and the second extension plate 202 , the docking plate 302 can slide in the sliding opening 102 until it is flush with the threaded column of the first butterfly bolt 301 .

[0040] When the first butterfly bolt 301 is threadedly installed into the docking plate 302 through the threaded column, the upper cover 201 and the lower cover 101 can be closed and fastened together.

[0041] Through the design of the first butterfly bolt 301, the docking plate 302, the damping block 303 and the sliding opening 102, when the case cover is closed after the space size of the case is adjusted, the staff can push or pull the docking plate 302 to slide in the sliding opening 102 according to the distance between the first network server case shell 1 and the second network server case shell 2, so that it is flush with the threaded column of the first butterfly bolt 301 threadedly installed in the upper cover 201, and then the upper cover 201 can be turned over and fitted on the upper surface of the lower cover 101, and By rotating the first butterfly bolt 301 and threading it into the docking plate 302, the lower cover 101 and the upper cover 201 can be locked together. The frictional top pressure between the lower cover 101 and the upper cover 201 can also apply additional limiting force to the locking force between the first network server chassis shell 1 and the second network server chassis shell 2, thereby achieving the function of ensuring that the upper cover 201 and the lower cover 101 are locked together during the process of adjusting the distance between the first network server chassis shell 1 and the second network server chassis shell 2.

[0042] like Figure 4 As shown, the pressing mechanism 4 includes a C-shaped plate 401, which is fixedly mounted on one end of the limit block 501 of the second extension plate 202. A second butterfly bolt 402 is threadedly mounted on one end of the C-shaped plate 401, and the threaded column of the second butterfly bolt 402 can press on one side of the first network server chassis shell 1.

[0043] The second butterfly bolt 402 is suspended on one end of the first network server chassis 1 through the U-shaped plate 401 so that the threaded column of the second butterfly bolt 402 is flush with the anti-slip groove 403. The anti-slip groove 403 is opened on one end of the first network server chassis 1.

[0044] The anti-slip groove 403 can be used for the threaded column top of the second butterfly bolt 402 to be pressed into, so that it can press and lock the first network server chassis shell 1 and the second network server chassis shell 2 after being stretched or retracted.

[0045] During the sliding of the first network server chassis 1 and the second network server chassis 2 in the limiting groove 203 by the limiting block 501 , the U-shaped plate 401 can drive the threaded column of the second butterfly bolt 402 to always remain opposite to the anti-slip groove 403 .

[0046] By designing the U-shaped plate 401, the second butterfly bolt 402, and the anti-slip groove 403, when the space inside the chassis is increased, the staff can stretch the first network server chassis shell 1 and the second network server chassis shell 2 to both sides, and the first network server chassis shell 1 and the second network server chassis shell 2 will slide in the first extension plate 104, the second extension plate 202, and the limiting groove 203 through the guide block 5 and the limiting block 501. When the limiting block 501 at one end of the second extension plate 202 slides in the limiting groove 203, it will drive the U-shaped plate 401 at one end of the limiting block 501 to slide together, and the second butterfly bolt 402 threadedly installed in the U-shaped plate 401 will slide in the anti-slip groove 403 provided on one side of the first network server chassis shell 1, so that it can always maintain In the relative state, the staff can then rotate the threaded column of the second butterfly bolt 402 to press the thread into the anti-slip groove 403, and the convex teeth in the anti-slip groove 403 will increase the limiting force between the threaded column of the second butterfly bolt 402, and then the first network server chassis shell 1 and the second network server chassis shell 2 can be pressed and clamped together, so as to realize the function of limiting the current chassis space size, and the adjustable box size makes it more convenient for the staff to maintain and upgrade the equipment. The ample internal space makes it easier to replace components, clean equipment and other operations, reducing maintenance time and difficulty, so that it can flexibly configure the position and quantity of electrical components according to actual needs. This flexibility helps to quickly respond to different application requirements and changes, and improve work efficiency and adaptability.

[0047] According to the above technical solution, the working steps of this solution are summarized and sorted out: if it is necessary to increase the space size in the chassis, the staff can stretch the first network server chassis shell 1 and the second network server chassis shell 2 to both sides, and the first network server chassis shell 1 and the second network server chassis shell 2 will slide in the first extension plate 104, the second extension plate 202 and the limiting groove 203 through the guide block 5 and the limit block 501, thereby increasing the distance between the first network server chassis shell 1 and the second network server chassis shell 2, which increases the space size of the entire chassis. When the space needs to be reduced, it can be achieved by pushing it toward the center. When the limit block 501 at one end of the second extension plate 202 slides in the limit groove 203, it will drive the C-shaped plate 401 at one end of the limit block 501 to slide together, and the second butterfly bolt 402 threadedly installed in the C-shaped plate 401 will slide in the anti-slip groove 403 opened on one side of the first network server chassis shell 1, so that it can always maintain a relative state. Then, the staff can rotate the threaded column of the second butterfly bolt 402 and press it into the anti-slip groove 403, and the convex teeth in the anti-slip groove 403 will increase the friction with the second butterfly bolt 40 2, thereby being able to press and clamp the first network server chassis shell 1 and the second network server chassis shell 2 together, thereby realizing the function of limiting the current chassis space size. After adjusting the chassis space size and closing the chassis cover, the staff can push or pull the docking plate 302 to slide in the sliding opening 102 according to the distance between the first network server chassis shell 1 and the second network server chassis shell 2, so that it is flush with the threaded column of the first butterfly bolt 301 threadedly installed in the upper cover 201, and then the upper cover 20 can be closed. 1 is flipped and fitted on the upper surface of the lower cover 101, and the first butterfly bolt 301 is screwed into the docking plate 302 by rotating it, thereby locking the lower cover 101 and the upper cover 201 together. The frictional top pressure generated by the fit between the lower cover 101 and the upper cover 201 can also apply additional limiting force to the locking force between the first network server chassis shell 1 and the second network server chassis shell 2, thereby achieving the function of ensuring that the upper cover 201 and the lower cover 101 are locked together during the process of adjusting the distance between the first network server chassis shell 1 and the second network server chassis shell 2.

[0048] In summary: it has the function of freely adjusting the size of the chassis space, and the adjustable box size makes it more convenient for staff to maintain and upgrade the equipment. The ample internal space makes it easier to replace components, clean equipment and other operations, reducing maintenance time and difficulty, and enabling it to flexibly configure the position and quantity of electrical components according to actual needs. This flexibility helps to quickly respond to different application requirements and changes, and improve work efficiency and adaptability.

[0049] Any portion not described in the present invention is the same as the prior art or can be implemented using the prior art. Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A network server chassis, characterized in that: include: A first network server chassis shell (1) and a second network server chassis shell (2), wherein the upper surface of the inner wall and the lower surface of the outer wall of the first network server chassis shell (1) and the second network server chassis shell (2) are respectively fixedly mounted with guide blocks (5), the guide blocks (5) of the first network server chassis shell (1) and the second network server chassis shell (2) respectively slide through the first extension plate (104) and the second extension plate (202), the first extension plate (104) and the second extension plate (202) are respectively fixedly mounted on one end of the first network server chassis shell (1) and the second network server chassis shell (2), so that the first network server chassis shell (1) and the second network server chassis shell (2) can slide inwards and be pulled outwards to expand by stretching the first extension plate (104) and the second extension plate (202) through the guide blocks (5); Wherein, a lower cover (101) and an upper cover (201) are rotatably mounted on the upper surfaces of the first network server chassis shell (1) and the second network server chassis shell (2), respectively, and a locking mechanism (3) is provided on the upper cover (201) and the lower surface; The first extension plate (104) and the second extension plate (202) are both fixedly mounted with a limiting block (501) at one end, and the first extension plate (104) and the second extension plate (202) are respectively slidably mounted in each other's limiting slots (203) through the limiting blocks (501), and the limiting slots (203) are provided on both sides of the first network server chassis shell (1) and the second network server chassis shell (2), and a pressing mechanism (4) is fixedly mounted on one end of the limiting block (501) of the second extension plate (202), and the pressing mechanism (4) can be pressed and locked on one end of the first network server chassis shell (1).

2. A network server chassis according to claim 1, characterized in that: The first extension plate (104) and the second extension plate (202) are respectively in an expansion shape and a contraction shape, and the first extension plate (104) in the expansion shape is slidably sleeved on the outer surface of the second extension plate (202) in the contraction shape.

3. The network server chassis according to claim 1, wherein: The locking mechanism (3) comprises a first butterfly bolt (301), which is threadedly mounted on the upper surface of the upper cover (201) and can be threadedly mounted into a docking plate (302) through the upper cover (201). The docking plate (302) is slidably mounted in a sliding opening (102), and the sliding opening (102) is opened on the upper surface of the lower cover (101).

4. A network server chassis according to claim 3, characterized in that: Damping blocks (303) are fixedly mounted on both sides of the outer surface of the docking plate (302). The damping blocks (303) are slidably mounted in the damping grooves (103). The damping grooves (103) are opened on both sides of the sliding opening (102).

5. A network server chassis according to claim 3 or 4, characterized in that: During the process of the first network server chassis shell (1) and the second network server chassis shell (2) being stretched and retracted by the first extension plate (104) and the second extension plate (202), the docking plate (302) can be slid in the sliding opening (102) until it is flush with the threaded column of the first butterfly bolt (301).

6. A network server chassis according to claim 5, characterized in that: When the first butterfly bolt (301) is threadedly installed into the docking plate (302) through the threaded column, the upper cover (201) and the lower cover (101) can be closed and fastened together.

7. The network server chassis according to claim 1, characterized in that: The pressing mechanism (4) comprises a C-shaped plate (401), the C-shaped plate (401) being fixedly mounted on one end of a limit block (501) of the second extension plate (202), a second butterfly bolt (402) being threadedly mounted on one end of the C-shaped plate (401), and the threaded column of the second butterfly bolt (402) being capable of pressing against one side of the first network server chassis shell (1).

8. The network server chassis according to claim 7, characterized in that: The second butterfly bolt (402) is suspended on one end of the first network server chassis shell (1) through a U-shaped plate (401), so that the threaded column of the second butterfly bolt (402) is flush with the anti-slip groove (403), and the anti-slip groove (403) is opened at one end of the first network server chassis shell (1).

9. The network server chassis according to claim 8, characterized in that: The anti-slip groove (403) can be used for the threaded column top of the second butterfly bolt (402) to be pressed into, so that the first network server chassis shell (1) and the second network server chassis shell (2) can be pressed and locked after being stretched or retracted.

10. The network server chassis according to claim 9, characterized in that: During the process of the first network server chassis shell (1) and the second network server chassis shell (2) sliding and shrinking in each other's limiting groove (203) through the limiting block (501), the U-shaped plate (401) can drive the threaded column of the second butterfly bolt (402) to always remain opposite to the anti-slip groove (403).

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