Computer protection device

Abstract

The invention relates to a computer protection device, and belongs to the technical field of transportation packaging equipment. Comprising an outer box, an inner box and connecting pieces arranged on the inner side wall of the outer box and the outer side wall of the inner box. A cavity is formed in the side wall of the outer box, the connecting piece comprises a plurality of first connecting belts arranged in the longitudinal direction and a plurality of second connecting belts arranged in the transverse direction, first cutting grooves and second cutting grooves are formed in the inner side wall of the outer box, the first connecting belts are annular, the two ends of each first connecting belt penetrate through the first cutting grooves respectively, and the second connecting belts penetrate through the second cutting grooves respectively. The second connecting belts are annular, the two ends of each second connecting belt penetrate through the second cutting grooves correspondingly, and the first connecting belts and the second connecting belts are matched to form a grid shape. A plurality of first elastic bands and a plurality of second elastic bands are arranged in the cavity, the first connecting bands are fixedly connected to the first elastic bands, and the second connecting bands are fixedly connected to the second elastic bands. According to the invention, the problem of high computer packaging cost in the prior art is solved.

Description

A computer protection device Technical Field

[0001] This invention relates to a computer protection device, belonging to the technical field of transport packaging equipment. Background Technology

[0002] As computer equipment becomes increasingly precise and valuable, the need for protection during transportation is becoming more prominent. It must be properly placed during transport to avoid bumps and knocks.

[0003] A search revealed a Chinese patent with publication number CN107352136B that discloses a device for conveniently storing computer equipment. Its key technical features include: a housing; a motor fixedly connected to the bottom of the inner wall of the housing; a first pulley fixedly connected to the output shaft of the motor; a second pulley connected to the surface of the first pulley via a belt drive; a rotating plate fixedly connected to the front of the second pulley; a horizontal plate fixedly connected to the front of the rotating plate; a connecting rod rotatably connected to the left side of the horizontal plate; a movable plate fixedly connected to the top of the connecting rod; and a push block fixedly connected to the bottom of the vertical plate.

[0004] For example, Chinese Patent No. CN107235214B discloses a collision-resistant transport box based on a computer host. Its key technical features are: it includes a casing, a support leg fixedly connected to the bottom of the inner wall of the casing, and a shock-absorbing device fixedly connected to the top of the support leg; buffer devices fixedly connected to both sides of the bottom of the inner wall of the casing; a cover movably connected to the top of the casing, and a handle fixedly connected to the top of the cover; a fixing device slidably connected to the bottom of the cover; and the buffer device includes a sleeve, with the bottom end of the sleeve fixedly connected to the bottom of the inner wall of the casing.

[0005] Both of the aforementioned solutions achieve shock absorption during computer transport by configuring numerous mechanical transmission components. However, the large number of mechanical components and their space occupation lead to a significant increase in cost. For the large-scale transport of computers, such solutions are impractical and difficult to widely implement.

[0006] Therefore, a new solution is needed to address this problem. Summary of the Invention

[0007] The technical problem to be solved by the present invention is to provide a computer protection device that solves the problem of high computer packaging costs in the prior art.

[0008] The technical problem to be solved by the present invention is achieved by the following technical solution: a computer protection device, comprising an outer casing, an inner casing disposed within the outer casing for accommodating a computer, and connecting members disposed on the inner side wall of the outer casing and the outer side wall of the inner casing; the outer casing side wall is provided with a cavity, the connecting members include a plurality of first connecting strips arranged longitudinally and a plurality of second connecting strips arranged transversely, the top and bottom of the inner side wall of the outer casing are respectively provided with first grooves corresponding to the first connecting strips, the two sides of the inner side wall of the outer casing are respectively provided with second grooves corresponding to the second connecting strips, the first grooves and the second grooves are respectively connected to the cavity, the first connecting strips are annular and their two ends pass through the first grooves, the second connecting strips are annular and their two ends pass through the second grooves, the plurality of first connecting strips and the plurality of second connecting strips cooperate to form a mesh, and connecting members are provided at the intersections of the first connecting strips and the second connecting strips; the cavity is provided with a plurality of first elastic strips and a plurality of second elastic strips, the first elastic strips are arranged horizontally, the second elastic strips are arranged vertically, the plurality of first connecting strips are fixedly connected to the first elastic strips, and the plurality of second connecting strips are fixedly connected to the second elastic strips.

[0009] The present invention is further configured such that: there are two of each of the first connecting strip and the second connecting strip, the two first connecting strips and the two second connecting strips form a grid shape, and the two ends of the first connecting strip are respectively located on the upper and lower sides of the two second connecting strips, the two ends of the second connecting strip are respectively located on the upper and lower sides of the two first connecting strips, the two first connecting strips and the two second connecting strips are pressed together end to end, and a connector is provided on the first connecting strip or the second connecting strip located on the side away from the inner sidewall of the outer box at the intersection of the first connecting strip and the second connecting strip.

[0010] The present invention is further configured such that: the connector includes a fixing plate fixedly connected to the first connecting strip or the second connecting strip, a connecting rod fixedly connected to the fixing plate, a first connecting groove and a second connecting groove formed on the side wall of the inner box, the first connecting groove extending in a horizontal direction, the second connecting groove extending in a vertical direction, two first connecting grooves, and connectors connecting the first connecting strip corresponding to the two first connecting grooves respectively; two second connecting grooves, and connectors connecting the second connecting strip corresponding to the two second connecting grooves respectively; both the first connecting groove and the second connecting groove are slidably connected to sliders, the sliders are respectively provided with through holes communicating with the inner and outer sides of the inner box, the connecting rod is slidably connected in the through holes, and a limit plate is fixedly connected to one end of the connecting rod extending to the inner side of the inner box.

[0011] The present invention is further configured such that: both the first connecting groove and the second connecting groove are provided with a plurality of reinforcing ribs on both sides along their own width direction, and the slider is provided with limiting grooves corresponding to the reinforcing ribs on both sides, and the reinforcing ribs are slidably connected to the limiting grooves one by one.

[0012] The invention is further configured such that: a sliding sleeve is provided in the cavity for each of the first connecting strips and the second connecting strips; the two sides of the sliding sleeve are fixedly connected to the two sides of the cavity; a first damping element is provided in the sliding sleeve and between the first connecting strip or the second connecting strip; the first damping element includes a first groove and a second groove formed on both sides of the inner wall of the sliding sleeve along the thickness direction of the cavity, an elliptical cylinder fixedly connected to the first connecting strip or the second connecting strip and slidably connected to the sliding sleeve, the elliptical cylinder having an elliptical cross-section and the first connecting strip or the second connecting strip passing through it along its minor axis, the two ends of the elliptical cylinder along its major axis being located in the first groove and the second groove respectively, and friction plates are provided at both ends of the elliptical cylinder along its major axis; when the elliptical cylinder disengages from the first groove and the second groove, the inner wall of the sliding sleeve adheres to the junction between the surface of the elliptical cylinder and the friction plate.

[0013] The present invention is further configured such that the first groove and the second groove are staggered, one side of the elliptical cylinder along its minor axis abuts against one end of the first groove, and the other side of the elliptical cylinder along its minor axis abuts against the other end of the second groove.

[0014] The invention is further configured such that: a second damping element is provided between the perforation and the connecting rod; the second damping element includes a receiving groove formed in the inner wall of the perforation, a cylinder rotatably connected in the receiving groove, a return torsion spring disposed between the receiving groove and the cylinder, a friction plate fixedly connected to one side of the cylinder extending out of the receiving groove, and a third groove formed in the side wall of the connecting rod; the peripheral wall of the cylinder near the opening of the receiving groove is flush with the opening of the receiving groove; the friction plate is disposed on the side of the cylinder near the opening of the receiving groove and extends to the outside of the receiving groove; the friction plate is located in the third groove; when the connecting rod moves and causes the friction plate to disengage from the third groove, the junction of the peripheral wall of the cylinder and the friction plate adheres to the side wall of the connecting rod.

[0015] The invention is further configured such that: the outer box includes an inner layer and an outer layer, the periphery and bottom of the inner layer and the outer layer are spaced apart, and right-angle support members are provided at the four corners between the inner layer and the outer layer.

[0016] The present invention is further configured such that an elastic pad is provided between the outer bottom of the inner layer and the inner bottom of the outer layer.

[0017] The beneficial effects of this invention are as follows: 1. By forming a grid structure through the intersecting longitudinal and transverse first and second connecting strips, combined with the fixed connection between the elastic strip and the first and second connecting strips, external impact force can be evenly distributed to multiple directions through the grid nodes, avoiding concentrated force at a single point. When the outer casing is subjected to vibration or collision, the elastic strip absorbs energy through stretching deformation. At the same time, the grid structure transmits the impact force to the first and second damping components. Through the synergistic action of the first damping component (elliptical cylinder and sliding sleeve) and the second damping component (cylinder and connecting rod), a multi-level buffer is formed, further absorbing impact energy, thereby reducing the direct impact on the computer.

[0018] 2. When the outer casing is subjected to vibration or collision, the elliptical cylinder quickly disengages from the first and second grooves within the sliding sleeve and slides at an angle within the sliding sleeve. At this time, due to the tension of the first connecting belt or the second connecting belt, the elliptical cylinder remains in an inclined state, and the friction between the friction plate and the inner wall of the sliding sleeve is small or non-existent, thereby enabling the inner casing to quickly compensate for the vibration of the outer casing. When the inner casing returns to its original position under the action of the elastic belt, the elliptical cylinder generates a torsional force for resetting under the action of the first and second connecting belts, resulting in a larger friction between the friction plate and the inner wall of the sliding sleeve to reduce kinetic potential energy and absorb the energy of vibration. The contact resistance between the friction plate and the groove wall consumes energy.

[0019] 3. When the outer casing is subjected to vibration or collision, the second damping element between the connecting rod and the slider intermittently rubs against the cylinder and the connecting rod. That is, when the outer casing vibrates, the cylinder deflects due to the groove, causing the friction plate to deflect into the receiving groove, resulting in less or no friction between the friction plate and the side wall of the connecting rod. This allows the inner casing to quickly compensate for the vibration of the outer casing. When the connecting rod returns to its original position under the action of the elastic band, the cylinder generates a back-twisting force, resulting in greater friction between the friction plate and the side wall of the connecting rod, thereby reducing the kinetic potential energy and further suppressing the transmission of vibration.

[0020] 4. The modular first connecting belt and elastic belt design replace the traditional complex mechanical transmission components, thereby significantly reducing the number of parts and the space occupied.

[0021] 5. The double-layer structure of the outer casing achieves lightweight yet high rigidity through right-angle supports and reinforcing ribs, while the rational layout of materials such as elastic pads reduces manufacturing costs. Furthermore, the elastic pads and the double-layer structure of the outer casing provide additional elastic support, forming a composite shock absorption system. This design balances protective performance with economic benefits, making it particularly suitable for scenarios requiring high-density transportation. Attached Figure Description

[0022] Figure 1 is a schematic diagram of the overall structure of the present invention.

[0023] Figure 2 is an overall cross-sectional view of the present invention.

[0024] Figure 3 is a schematic diagram of the structure inside the outer box and the cavity in this invention.

[0025] Figure 4 is a schematic diagram of the inner box part in this invention.

[0026] Figure 5 is a magnified view of part A in Figure 3.

[0027] Figure 6 is a magnified view of part B in Figure 2.

[0028] Figure 7 is a cross-sectional view of the second damping element in this invention.

[0029] Figure 8 is a magnified view of part C in Figure 2.

[0030] In the diagram: 1. Outer casing; 2. Inner casing; 3. Connector; 4. Cover; 5. Cavity; 6. Inner layer; 7. Outer layer; 8. Elastic pad; 9. Right-angle support; 10. First connecting strip; 11. Second connecting strip; 12. First groove; 13. Second groove; 14. First elastic band; 15. Second elastic band; 16. Fixing plate; 17. Connecting rod; 18. First connecting groove; 19. Second connecting groove; 20. Slider; 21. Perforation; 22. Limiting plate; 23. Reinforcing rib; 24. Limiting groove; 25. Sliding sleeve; 26. First damping element; 27. First groove; 28. Second groove; 29. ​​Elliptical cylinder; 30. Friction plate; 31. Second damping element; 32. Receiving groove; 33. Cylinder; 34. Return torsion spring; 35. Third groove. Detailed Implementation

[0031] To facilitate a clear understanding of the technical means, creative features, objectives, and effects of this invention, the invention will be further described below in conjunction with specific illustrations.

[0032] As shown in Figures 1-8, a computer protection device includes an outer casing 1, an inner casing 2 disposed on the outer casing 1 for accommodating a computer, and a connector 3 disposed on the inner side wall of the outer casing 1 and the outer side wall of the inner casing 2, wherein the outer casing 1 is open and has a cover 4.

[0033] The outer box 1 has a cavity 5 on its side wall. The outer box 1 includes an inner layer 6 and an outer layer 7. The inner layer 6 and the outer layer 7 are spaced apart at their periphery and bottom. An elastic pad 8 is provided between the outer bottom of the inner layer 6 and the inner bottom of the outer layer 7. Right-angle support members 9 are provided at the four corners between the inner layer 6 and the outer layer 7. The inner layer 6 and the outer layer 7 cooperate to form a cavity 5 between two adjacent right-angle support members 9.

[0034] The double-layer structure of the outer casing 1 achieves lightweight and high rigidity through right-angle support members 9 and reinforcing ribs 23, while the rational layout of materials such as the elastic pad 8 reduces manufacturing costs. Furthermore, the elastic pad 8 and the double-layer structure of the outer casing 1 provide additional elastic support, forming a composite shock absorption system. This design balances protective performance with economic benefits, making it particularly suitable for scenarios requiring high-density transportation.

[0035] The connector 3 includes several first connecting strips 10 arranged longitudinally and several second connecting strips 11 arranged transversely. The top and bottom of the inner sidewall of the outer casing 1 are respectively provided with first grooves 12 corresponding to the first connecting strips 10. The two sides of the inner sidewall of the outer casing 1 are respectively provided with second grooves 13 corresponding to the second connecting strips 11. The first grooves 12 and the second grooves 13 are respectively connected to the cavity 5. The first connecting strips 10 are annular and their two ends pass through the first grooves 12. The second connecting strips 11 are annular and their two ends pass through the second grooves 13. Several first connecting strips 10 and several second connecting strips 11 cooperate to form a grid.

[0036] More specifically, there are two of each of the first connecting strip 10 and the second connecting strip 11. The two first connecting strips 10 and the two second connecting strips 11 form a grid shape. The two ends of the first connecting strip 10 are located on the upper and lower sides of the two second connecting strips 11, respectively. The two ends of the second connecting strip 11 are located on the upper and lower sides of the two first connecting strips 10, respectively. The two first connecting strips 10 and the two second connecting strips 11 are pressed together end to end. A connector 3 is provided on the first connecting strip 10 or the second connecting strip 11 at the intersection of the first connecting strip 10 and the second connecting strip 11 on the side away from the inner wall of the outer casing 1.

[0037] The cavity 5 is provided with two first elastic bands 14 and two second elastic bands 15. The first elastic bands 14 are arranged horizontally and the second elastic bands 15 are arranged vertically. The two first elastic bands 14 and the two second elastic bands 15 cooperate to form a square shape. The two first connecting bands 10 are fixedly connected to the first elastic bands 14 and the two second connecting bands 11 are fixedly connected to the second elastic bands 15.

[0038] The connector 3 includes a fixing plate 16 fixedly connected to the first connecting band 10 or the second connecting band 11, a connecting rod 17 fixedly connected to the fixing plate 16, and a first connecting groove 18 and a second connecting groove 19 opened on the side wall of the inner box 2. The first connecting groove 18 and the second connecting groove 19 have rigid rings as supports. The first connecting groove 18 extends in the horizontal direction, and the second connecting groove 19 extends in the vertical direction. There are two first connecting grooves 18. The connector 3 connecting the first connecting band 10 corresponds to the two first connecting grooves 18 respectively. There are two second connecting grooves 19. The connector 3 connecting the second connecting band 11 corresponds to the two second connecting grooves 19 respectively.

[0039] Both the first connecting groove 18 and the second connecting groove 19 are slidably connected to sliders 20. Slider 20 has through holes 21 communicating with the inner and outer sides of the inner box 2. Connecting rod 17 is slidably connected within the through holes 21, and one end of connecting rod 17 extending to the inner side of the inner box 2 is fixedly connected to a limiting plate 22. Both the first connecting groove 18 and the second connecting groove 19 have several reinforcing ribs 23 on both sides along their width direction. Limiting grooves 24 corresponding to the reinforcing ribs 23 are respectively opened on both sides of the slider 20, and the reinforcing ribs 23 are slidably connected to the limiting grooves 24 one-to-one.

[0040] A sliding sleeve 25 is provided inside the cavity 5 for each first connecting band 10 and second connecting band 11. The two sides of the sliding sleeve 25 are fixedly connected to the two sides of the cavity 5. A first damping element 26 is provided inside the sliding sleeve 25 and between the first connecting band 10 or the second connecting band 11. The first damping element 26 includes a first groove 27 and a second groove 28 formed on both sides of the inner wall of the sliding sleeve 25 along the thickness direction of the cavity 5, and an elliptical cylinder 29 fixedly connected to the first connecting band 10 or the second connecting band 11 and slidably connected inside the sliding sleeve 25. The cross-section of the elliptical cylinder 29 is elliptical and the first connecting band 10 or the second connecting band 11 passes through it along its minor axis. The two ends of the elliptical cylinder 29 along its major axis are located in the first groove 27 and the second groove 28, respectively. Friction pieces 30 are provided at both ends of the elliptical cylinder 29 along its major axis. The first groove 27 and the second groove 28 are staggered. One side of the elliptical cylinder 29 along its minor axis abuts against one end of the first groove 27, and the other side of the elliptical cylinder 29 along its minor axis abuts against the other end of the second groove 28.

[0041] When the elliptical cylinder 29 disengages from the first groove 27 and the second groove 28, the inner wall of the sliding sleeve 25 adheres to the junction between the surface of the elliptical cylinder 29 and the friction plate 30. When the outer box 1 is subjected to vibration or collision, the elliptical cylinder 29 quickly disengages from the first groove 27 and the second groove 28 within the sliding sleeve 25 and slides in an inclined position within the sliding sleeve 25. At this time, due to the tension of the first connecting belt 10 or the second connecting belt, the elliptical cylinder 29 remains in an inclined state, and the friction between the friction plate 30 and the inner wall of the sliding sleeve 25 is small or non-existent, thereby enabling the inner box 2 to quickly compensate for the vibration of the outer box 1. When the inner box 2 is reset under the action of the elastic belt, the elliptical cylinder 29 generates a resetting torsional force under the action of the first connecting belt 10 and the second connecting belt 11, resulting in a large friction between the friction plate 30 and the inner wall of the sliding sleeve 25 to reduce kinetic potential energy and absorb the energy of vibration. The contact resistance between the friction plate 30 and the groove wall consumes energy.

[0042] A second damping element 31 is provided between the perforation 21 and the connecting rod 17. The second damping element 31 includes a receiving groove 32 opened in the inner wall of the perforation 21, a cylinder 33 rotatably connected in the receiving groove 32, a reset torsion spring 34 disposed between the receiving groove 32 and the cylinder 33, a friction plate 30 fixedly connected to one side of the cylinder 33 extending out of the receiving groove 32, and a third groove 35 opened in the side wall of the connecting rod 17. The peripheral wall of the cylinder 33 near the opening of the receiving groove 32 is flush with the opening of the receiving groove 32. The friction plate 30 is disposed on the side of the cylinder 33 near the opening of the receiving groove 32 and extends to the outside of the receiving groove 32. The friction plate 30 is located in the third groove 35. When the connecting rod 17 moves and the friction plate 30 is disengaged from the third groove 35, the junction of the peripheral wall of the cylinder 33 and the friction plate 30 is attached to the side wall of the connecting rod 17.

[0043] When the outer box 1 is subjected to vibration or collision, the second damping element 31 between the connecting rod 17 and the slider 20 generates intermittent friction between the cylinder 33 and the connecting rod 17. That is, when the outer box 1 vibrates, the cylinder 33 deflects due to the groove, causing the friction plate 30 to deflect into the receiving groove 32, resulting in less or no friction between it and the side wall of the connecting rod 17. This allows the inner box 2 to quickly compensate for the vibration of the outer box 1. When the connecting rod 17 is reset under the action of the elastic band, the cylinder generates a back-twisting force, resulting in greater friction between the friction plate 30 and the side wall of the connecting rod 17, thereby reducing the kinetic potential energy and further suppressing the transmission of vibration.

[0044] The implementation principle of this invention is as follows: the first connecting strip 10 and the second connecting strip 11 in the longitudinal and transverse directions intersect to form a grid structure. Combined with the fixed connection between the elastic strip and the first connecting strip 10 and the second connecting strip 11, the external impact force can be evenly distributed to multiple directions through the grid nodes, avoiding single-point concentrated force. When the outer box 1 is subjected to vibration or collision, the elastic strip absorbs energy through stretching deformation. At the same time, the grid structure transmits the impact force to the first damping member 26 and the second damping member 31. Through the synergistic action of the first damping member 26 (elliptical cylinder 29 cooperates with sliding sleeve 25) and the second damping member 31 (cylinder 33 cooperates with connecting rod 17), a multi-level buffer is formed to further absorb the impact energy, thereby reducing the direct impact on the computer. Moreover, the modular design of the first connecting strip 10 and the elastic strip replaces the traditional complex mechanical transmission components, thereby greatly reducing the number of parts and the space occupied.

[0045] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and various changes and modifications can be made without departing from the spirit and scope of the invention, all of which fall within the scope of protection claimed by the present invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A computer protection device, characterized in that: The system includes an outer casing (1), an inner casing (2) disposed within the outer casing (1) for accommodating the computer, and connectors (3) disposed on the inner side wall of the outer casing (1) and the outer side wall of the inner casing (2). The outer casing (1) has a cavity (5) on its side wall. The connectors (3) include a plurality of first connecting strips (10) arranged longitudinally and a plurality of second connecting strips (11) arranged transversely. The top and bottom of the inner side wall of the outer casing (1) are respectively provided with first grooves (12) corresponding to the first connecting strips (10), and the two sides of the inner side wall of the outer casing (1) are respectively provided with second grooves (13) corresponding to the second connecting strips (11). The first grooves (12) and the second grooves (13) are respectively connected to the cavity (5). The first connecting strips (10) The first connecting strip (10) is in a ring shape and its two ends pass through the first groove (12) respectively. The second connecting strip (11) is in a ring shape and its two ends pass through the second groove (13) respectively. A plurality of first connecting strips (10) and a plurality of second connecting strips (11) cooperate to form a grid. Connectors (3) are provided at the intersection of the first connecting strips (10) and the second connecting strips (11). A plurality of first elastic strips (14) and a plurality of second elastic strips (15) are provided in the cavity (5). The first elastic strips (14) are horizontally arranged and the second elastic strips (15) are vertically arranged. A plurality of first connecting strips (10) are fixedly connected to the first elastic strips (14) and a plurality of second connecting strips (11) are fixedly connected to the second elastic strips (15).

2. The computer protection device according to claim 1, characterized in that: Two of each of the first connecting strip (10) and the second connecting strip (11) are provided. The two first connecting strips (10) and the two second connecting strips (11) form a grid shape. The two ends of the first connecting strip (10) are located on the upper and lower sides of the two second connecting strips (11), respectively. The two ends of the second connecting strip (11) are located on the upper and lower sides of the two first connecting strips (10), respectively. The two first connecting strips (10) and the two second connecting strips (11) are pressed together end to end. A connector (3) is provided on the first connecting strip (10) or the second connecting strip (11) located on the side away from the inner wall of the outer box (1) at the intersection of the first connecting strip (10) and the second connecting strip (11).

3. A computer protection device according to claim 2, characterized in that: The connector (3) includes a fixing plate (16) fixedly connected to the first connecting band (10) or the second connecting band (11), a connecting rod (17) fixedly connected to the fixing plate (16), and a first connecting groove (18) and a second connecting groove (19) opened on the side wall of the inner box (2). The first connecting groove (18) extends horizontally, and the second connecting groove (19) extends vertically. There are two first connecting grooves (18), and the connector (3) connecting the first connecting band (10) corresponds to the two first connecting grooves (18, 19, 11, 19 ... 8) The second connecting groove (19) is provided in two parts. The connector (3) connecting the second connecting strip (11) corresponds to the two second connecting grooves (19) respectively. The first connecting groove (18) and the second connecting groove (19) are slidably connected to sliders (20). The sliders (20) are respectively provided with through holes (21) communicating with the inner side and the outer side of the inner box (2). The connecting rod (17) is slidably connected in the through hole (21), and the end of the connecting rod (17) extending to the inner side of the inner box (2) is fixedly connected to a limit plate (22).

4. A computer protection device according to claim 3, characterized in that: The first connecting groove (18) and the second connecting groove (19) are provided with a plurality of reinforcing ribs (23) on both sides along their own width direction. The slider (20) is provided with limiting grooves (24) corresponding to the reinforcing ribs (23) on both sides respectively. The reinforcing ribs (23) are slidably connected to the limiting grooves (24) one by one.

5. A computer protection device according to claim 3, characterized in that: A sliding sleeve (25) is provided in the cavity (5) for each of the first connecting band (10) and the second connecting band (11). The two sides of the sliding sleeve (25) are fixedly connected to the two sides of the cavity (5). A first damping element (26) is provided in the sliding sleeve (25) and between the first connecting band (10) or the second connecting band (11). The first damping element (26) includes a first groove (27) and a second groove (28) opened on both sides of the inner wall of the sliding sleeve (25) along the thickness direction of the cavity (5), and is fixedly connected to the first connecting band (10) or the second connecting band (11) and slidably connected. An elliptical cylinder (29) is attached inside the sliding sleeve (25). The cross-section of the elliptical cylinder (29) is elliptical and the first connecting band (10) or the second connecting band (11) passes through it along its short axis. The two ends of the elliptical cylinder (29) along its long axis are located in the first groove (27) and the second groove (28), respectively. Friction pieces (30) are provided at both ends of the elliptical cylinder (29) along its long axis. When the elliptical cylinder (29) is disengaged from the first groove (27) and the second groove (28), the inner wall of the sliding sleeve (25) is attached to the junction between the surface of the elliptical cylinder (29) and the friction piece (30).

6. A computer protection device according to claim 3, characterized in that: The first groove (27) and the second groove (28) are staggered. One side of the elliptical cylinder (29) along its minor axis abuts against one end of the first groove (27), and the other side of the elliptical cylinder (29) along its minor axis abuts against the other end of the second groove (28).

7. A computer protection device according to claim 3, characterized in that: A second damping element (31) is provided between the perforation (21) and the connecting rod (17); the second damping element (31) includes a receiving groove (32) opened in the inner wall of the perforation (21), a cylinder (33) rotatably connected in the receiving groove (32), a return torsion spring (34) disposed between the receiving groove (32) and the cylinder (33), a friction plate (30) fixedly connected to one side of the cylinder (33) extending out of the receiving groove (32), and a third groove (35) opened in the side wall of the connecting rod (17). The peripheral wall of the cylinder (33) near the opening of the receiving groove (32) is flush with the opening of the receiving groove (32). The friction plate (30) is disposed on the side of the cylinder (33) near the opening of the receiving groove (32) and extends to the outside of the receiving groove (32). The friction plate (30) is located in the third groove (35). When the connecting rod (17) moves and the friction plate (30) is disengaged from the third groove (35), the junction of the peripheral wall of the cylinder (33) and the friction plate (30) is attached to the side wall of the connecting rod (17).

8. A computer protection device according to claim 1, characterized in that: The outer box (1) includes an inner layer (6) and an outer layer (7). The inner layer (6) and the outer layer (7) are spaced apart at their periphery and bottom. Right-angle support members (9) are provided at the four corners between the inner layer (6) and the outer layer (7).

9. A computer protection device according to claim 8, characterized in that: An elastic pad (8) is provided between the bottom outer layer (6) and the bottom inner layer (7).

Images