Case protection device with shockproof buffer mechanism

Abstract

The invention relates to a case protection device with a shockproof buffering mechanism. The case protection device comprises an outer box, a bearing plate, a one-way speed reduction part and a limiting part. A bearing plate is arranged in the lower portion of the outer box in an up-down sliding mode, a machine box is fixed to the top face of the bearing plate, a spring is connected between the bearing plate and a bottom plate of the outer box, and one-way speed reduction parts connected with the bottom plate of the outer box are evenly distributed on the bottom face of the bearing plate. Limiting pieces located on the two sides of the machine box are arranged above the bearing plate, the limiting piece on the left side comprises sliding rods and an elastic plate, the elastic plate is an arc plate with a rightward protrusion, the sliding rods are connected to the upper end and the lower end of the elastic plate, the two sliding rods are slidably connected with a left side plate of the outer box, and a rubber plate is connected to the middle of the right side face of the elastic plate. When the bearing plate moves downwards, the two sliding rods are driven by the transmission part to move relatively. The computer case solves the problems that after the computer case collides with the ground, the case is vibrated, components in the case are prone to being damaged, and the damping effect of a case frame supported by springs is poor.

Description

Technical Field

[0001] The invention relates to the technical field of computers, and in particular to a chassis protection device with a shockproof buffer mechanism. Background Art

[0002] A computer is an electronic device used to store, retrieve and process data. The computer case is the shell that holds and protects all the main components inside the computer. The case provides a shell that can protect the CPU, graphics card, memory, hard disk and other core components inside from dust, moisture, high temperature and other external environments, as well as physical damage. When the computer case is changed to a new environment, it is easily affected by external impacts, especially when it is moved, the case is easily hit on the ground, and the case is affected by vibration, which can easily cause damage to the components inside the computer case. For example, the authorization publication number CN 112286311 B "A computer case with a shock-proof and buffering mechanism" also mentioned this problem, namely: when the case is placed on the ground, it is easy to collide with the ground, causing the internal components of the case to shake and become insensitive; currently, a case frame with spring support is generally used to shock-proof the case, but the rebound force of the spring after being compressed drives the case back to its initial position. The spring quickly releases energy, and the rebound force reaches a peak value in a very short time, forming a shock wave to the case. Therefore, the case will still be subjected to large impact vibrations; and when the spring rebounds, the case may pass the equilibrium position due to inertia, resulting in reverse compression of the spring, forming continuous oscillation, causing continuous shaking of the case, and causing instability of the case. Summary of the invention

[0003] The present invention aims to solve the problems that after a computer case hits the ground, the case is vibrated, which easily causes damage to components in the case and the case frame supported by springs has poor shock absorption effect. A case protection device with a shockproof buffering mechanism is provided, which can improve the shockproof buffering effect of the computer case.

[0004] In order to solve the above problems, the technical solution of the present invention is: A chassis protection device with a shock-proof and buffer mechanism, comprising an outer box, a bearing plate, a one-way deceleration member and a limiting member; a bearing plate is slidably arranged up and down inside the lower part of the outer box, a chassis is fixed on the top surface of the bearing plate, a spring is connected between the bearing plate and the bottom plate of the outer box, one-way deceleration members connected to the bottom plate of the outer box are evenly distributed on the bottom surface of the bearing plate, the one-way deceleration member includes a fixed friction ring, a moving friction ring and a connecting rod, the fixed friction ring is fixed on the inner bottom surface of the outer box, the moving friction ring is located inside the fixed friction ring, the outer ring surface of the moving friction ring is in frictional contact with the inner ring surface of the fixed friction ring, the inner ring of the moving friction ring is connected with a rotating cylinder through a one-way bearing, the lower end of the rotating cylinder is rotatably connected to the bottom plate of the outer box, the upper end of the connecting rod is fixedly connected to the bearing plate and the lower end extends into the rotating cylinder, when the connecting rod moves downward, it drives the rotating cylinder to rotate independently, and when the connecting rod moves upward, it drives the rotating cylinder and the moving friction ring to rotate synchronously; limiting members are arranged above the bearing plate on both sides of the chassis, the left limiting member includes a sliding rod and an elastic plate, the elastic plate is an arc plate with a convexity facing right, the upper and lower ends of the elastic plate are both connected to the sliding rod, both sliding rods are slidably connected to the left side plate of the outer box, and a rubber plate is connected to the middle of the right side surface of the elastic plate; when the bearing plate moves downward, it drives the two sliding rods to move relative to each other through a transmission member.

[0005] Further, the inner ring surface of the inner ring of the one-way bearing is fixedly connected to the outer wall of the rotating cylinder, and the outer ring surface of the outer ring of the one-way bearing is fixedly connected to the inner ring surface of the moving friction ring; a first spiral groove is arranged on the inner wall of the rotating cylinder, the spiral direction of the first spiral groove is right-handed, and a first driving rod extending into the first spiral groove is fixed at the lower end of the peripheral wall of the connecting rod.

[0006] Further, when the rotating cylinder rotates counterclockwise, the inner ring and the outer ring of the one-way bearing are in a free state, and when the rotating cylinder rotates clockwise, the inner ring and the outer ring of the one-way bearing are in a locked state.

[0007] Further, both the fixed friction ring and the moving friction ring are circular ring bodies made of metal matrix fiber-reinforced materials; the elastic plate is an arc plate made of spring steel material.

[0008] Further, sliding holes are arranged on the left side plate of the outer box, the two sliding rods on the left limiting member are both horizontally arranged, and the two sliding rods on the left limiting member both slidably extend into the sliding holes.

[0009] Further, the transmission member on the left side includes a horizontal plate, a driving cylinder, and a vertical rod. Horizontal plates are provided on both the upper and lower sides of the left sliding hole. Both horizontal plates are fixed to the inner surface of the left side of the outer box. A driving cylinder is rotatably connected between the two horizontal plates. The outer wall of the driving cylinder is provided with a first external thread and a second external thread with opposite helix directions at its upper and lower parts. The upper part of the driving cylinder is threadedly connected to the upper sliding rod through the first external thread, and the lower part is threadedly connected to the lower sliding rod through the second external thread. A second spiral groove is provided on the inner wall of the driving cylinder. The bearing plate is lower than the lower horizontal plate. A vertical rod is fixed to the left part of the top surface of the bearing plate. The upper end of the vertical rod movably penetrates through the lower horizontal plate and extends into the driving cylinder. A driving rod two that slides into the second spiral groove is fixed to the upper end of the peripheral wall of the vertical rod.

[0010] Further, the helix direction of the second spiral groove on the driving cylinder on the left side is right-handed; when the vertical rod moves downward, the driving rod two on the vertical rod drives the driving cylinder to rotate counterclockwise, and the two sliding rods connected to the driving cylinder move relative to each other.

[0011] Further, the left part of the top surface of the bearing plate contacts the horizontal plate at the lower part of the left limiting member. The spring is in a semi-compressed state. The two left sliding rods respectively contact the upper and lower ends of the corresponding sliding holes. The elastic plate is in a natural state.

[0012] Further, when the elastic plate on the left side is in a natural state, there is a gap between the rubber plate on the elastic plate and the outer left surface of the chassis.

[0013] Further, a plurality of through holes are provided on the rear side plate of the outer box.

[0014] Through the above technical solutions, the beneficial effects of the present invention are as follows: 1. An outer box is provided on the outside of the chassis of the present invention. The vertical side plates of the outer box can block the impact force in the horizontal direction; when the outer box of the present invention hits the ground, the chassis and the bearing plate move downward, the spring is compressed, and each one-way deceleration member does not affect the downward movement speed of the bearing plate. During the downward movement of the bearing plate, the bending deformations of the two elastic plates increase. When the bending deformations of the two elastic plates increase, they can drive the rubber plates on the two limiting members to clamp and limit the chassis, limit the downward movement distance of the chassis, and thus can ensure the stability of the chassis.

[0015] 2. During the upward movement of the bearing plate under the restoring force of the spring, the clamping and limiting of the chassis by the two rubber plates can be released, which does not affect the upward movement of the chassis; a plurality of one-way deceleration members can slow down the upward movement speed of the spring and the bearing plate, weaken the impact force given by the spring to the bearing plate and the chassis; moreover, the present invention can avoid the spring from generating simple harmonic motion and ensure the stability of the chassis. Description of the Drawings

[0016] Figure 1 is the structural schematic of the present invention Figure 1 ; Figure 2 is a schematic structure of the present invention Figure 2 (the front side plate of the outer box is hidden); Figure 3 is Figure 2 a partial enlarged view at position A in Figure 4 is a front sectional view of the present invention; Figure 5 is Figure 4 a partial enlarged view at position B in Figure 6 is a schematic structural diagram of the connection of the driving cylinder, sliding rod and elastic plate on the left side of the present invention; Figure 7 is a schematic structural diagram of the connection of the bearing plate, vertical rod and connecting rod of the present invention; Figure 8 is a front sectional view of the connection of the one-way decelerating member and the outer box of the present invention; Figure 9 is a schematic structural diagram of the outer box of the present invention.

[0017] The reference numerals in the drawings are: 1, outer box; 3, bearing plate; 5, chassis; 6, spring; 7, fixed friction ring; 8, moving friction ring; 9, connecting rod; 10, one-way bearing; 10a, inner ring; 10b, outer ring; 11, rotating cylinder; 12, first spiral groove; 13, first driving rod; 14, sliding rod; 15, elastic plate; 16, rubber plate; 17, sliding hole; 18, cross plate; 19, driving cylinder; 20, vertical rod; 21, first external thread; 22, second external thread; 23, second spiral groove; 24, second driving rod; 25, through hole. Detailed implementation manners

[0018] The present invention will be further described below in conjunction with the drawings and specific implementation manners: As Figures 1 to 9As shown in the figure, a chassis protection device with a shock-proof and buffer mechanism includes an outer box 1, a bearing plate 3, a one-way deceleration member, and a limiting member; the upper end of the outer box 1 is open, and the front side plate of the outer box is a door that can be opened or closed, facilitating the maintenance and use of the chassis inside the outer box; a bearing plate 3 is slidably arranged up and down inside the lower part of the outer box 1. The bearing plate 3 is a rectangular plate that slidably contacts the inner surface of the outer box 1 on the side. A chassis 5 is fixed on the top surface of the bearing plate 3. There is a spacing between the chassis and the outer box. A plurality of springs 6 are connected between the bottom surface of the bearing plate 3 and the bottom plate of the outer box 1. The bottom surface of the bearing plate 3 is evenly distributed with one-way deceleration members connected to the bottom plate of the outer box 1. The one-way deceleration member includes a fixed friction ring 7, a moving friction ring 8, and a connecting rod 9. Both the fixed friction ring 7 and the moving friction ring 8 are annular bodies. The fixed friction ring 7 is fixed on the inner bottom surface of the outer box 1. The moving friction ring 8 is located inside the fixed friction ring 7. The outer ring surface of the moving friction ring frictionally contacts the inner ring surface of the fixed friction ring 7. The inner ring of the moving friction ring 8 is connected to a rotating cylinder 11 through a one-way bearing 10. The lower end of the rotating cylinder 11 is rotatably connected to the bottom plate of the outer box 1. The rotating cylinder 11 is a cylinder with openings at both ends. The connecting rod 9 is a round rod. The upper end of the connecting rod 9 is fixedly connected to the bearing plate 3, and the lower end extends into the rotating cylinder 11. When the connecting rod 9 moves downward, it drives the rotating cylinder 11 to rotate independently. When the connecting rod moves upward, it drives the rotating cylinder 11 and the moving friction ring 8 to rotate synchronously; a limiting member is arranged above the bearing plate 3 on both sides of the chassis 5. The two limiting members are symmetric left and right. The left limiting member includes a sliding rod 14 and an elastic plate 15. The elastic plate 15 is an arc plate with a convexity facing right. Both the upper and lower ends of the elastic plate 15 are connected to the sliding rod 14. Both sliding rods 14 are slidably connected to the left side plate of the outer box 1. The middle part of the right side surface of the elastic plate 15 is connected to a rubber plate 16. The rubber plate 16 is a rectangular plate made of elastic rubber; when the bearing plate 3 moves downward, it drives the two sliding rods 14 to move relative to each other through a transmission member.

[0019] The inner ring surface of the inner ring 10a of the one-way bearing 10 is fixedly connected to the outer wall of the rotating cylinder 11, and the outer ring surface of the outer ring 10b of the one-way bearing 10 is fixedly connected to the inner ring surface of the moving friction ring 8; a first spiral groove 12 is provided on the inner wall of the rotating cylinder 11. The spiral direction of the first spiral groove 12 is right-handed. A driving rod 13 extending into the first spiral groove is fixed at the lower end of the circumferential wall of the connecting rod 9. The driving rod 13 is a round rod that slidably contacts the first spiral groove 12. The upper end of the first spiral groove 12 penetrates the upper end of the rotating cylinder 11, facilitating the driving rod 13 to extend into the first spiral groove 12. When the driving rod 13 moves downward, it presses against the first spiral groove 12 to drive the rotating cylinder 11 to rotate counterclockwise.

[0020] When the rotating cylinder 11 rotates counterclockwise, the inner ring 10a and the outer ring 10b of the one-way bearing 10 are in a free state. When the rotating cylinder 11 rotates clockwise, the inner ring 10a and the outer ring 10b of the one-way bearing 10 are in a locked state.

[0021] The fixed friction ring 7 and the moving friction ring 8 are both toroidal bodies made of metal matrix fiber reinforced materials; the elastic plate 15 is an arc plate made of spring steel material.

[0022] A sliding hole 17 is provided on the left side plate of the outer box 1. The sliding hole 17 is a rectangular hole opened along the height direction of the outer box 1. The sliding rod 14 is a rectangular rod. The two sliding rods 14 on the left side limiting member are both horizontally arranged, and the two sliding rods 14 on the left side limiting member both slide into the sliding hole 17.

[0023] The left side transmission member includes a horizontal plate 18, a driving cylinder 19 and a vertical rod 20. Horizontal plates 18 are provided on both the upper and lower sides of the left side sliding hole 17. The two horizontal plates are both fixed on the inner surface of the left side of the outer box 1. The horizontal plate 18 is a rectangular plate. A driving cylinder 19 is rotatably connected between the two horizontal plates 18. The driving cylinder 19 is a cylinder with openings at both ends. External threads one 21 and external threads two 22 with opposite helix directions are provided on the upper and lower parts of the outer wall of the driving cylinder 19. The upper part of the driving cylinder 19 is threadedly connected to the upper side sliding rod 14 through the external thread one 21, and the lower part is threadedly connected to the lower side sliding rod 14 through the external thread two 22. A spiral groove two 23 is provided on the inner wall of the driving cylinder 19. The bearing plate 3 is lower than the lower side horizontal plate 18. A vertical rod 20 is fixed on the left part of the top surface of the bearing plate 3. The vertical rod 20 is a round rod body. The upper end of the vertical rod 20 movably penetrates through the lower side horizontal plate 18 and extends into the driving cylinder 19. A driving rod two 24 that slides into the spiral groove two is fixed on the upper end of the peripheral wall of the vertical rod 20. The driving rod two 24 is a round rod body that slidably contacts the spiral groove two. The two ends of the spiral groove two respectively penetrate through the upper and lower ends of the driving cylinder.

[0024] The helix direction of the spiral groove two on the left side driving cylinder 19 is right-handed; when the vertical rod 20 moves downward, the driving rod two 24 on the vertical rod 20 drives the driving cylinder 19 to rotate counterclockwise, and the two sliding rods 14 connected to the driving cylinder 19 move relative to each other.

[0025] The left part of the top surface of the bearing plate 3 contacts the lower side horizontal plate 18 of the left side limiting member, and the spring is in a semi-compressed state. The reason for the spring to be in a semi-compressed state is that when not affected by external forces, the spring is affected by the sum of the weights of the machine case, the bearing plate, multiple connecting rods and multiple vertical rods. The two left side sliding rods 14 respectively contact the upper and lower ends of the corresponding sliding hole 17, and the elastic plate 15 is in a natural state.

[0026] When the left side elastic plate 15 is in a natural state, there is a gap between the rubber plate 16 on the elastic plate 15 and the left outer surface of the machine case 5.

[0027] A plurality of through holes 25 are opened on the rear side plate of the outer box 1; when the machine case 5 is in use, the cables connected to the machine case 5 can pass through the through holes to connect to external devices. At the same time, the through holes 25, the sliding holes 17 and the upper end opening of the outer box 1 together provide heat dissipation for the machine case 5 during operation.

[0028] When in use, an outer box is provided on the outside of the chassis of the present invention, and the vertical side plates of the outer box can block the impact force in the horizontal direction; in the initial state, multiple springs are in a semi-compressed state. During the movement of the present invention, when the outer box 1 hits the ground, due to inertia, the chassis 5 drives the bearing plate 3 to move downward. When the chassis 5 starts to move downward, there is a gap between the rubber plates 16 on the two limit members and the chassis 5, and the two rubber plates 16 do not limit the movement of the chassis 5, allowing the chassis 5 to move downward for a certain distance, so that the connection between the chassis 5 and the outer box 1 is a flexible connection, avoiding the direct transfer of the acting force to the chassis 5 after the outer box contacts the ground; moreover, during the process of the chassis 5 driving the bearing plate 3 to move downward, the downward movement of the chassis 5 causes the semi-compressed spring 6 to be further compressed. And during the process of the connecting rods 9 on the multiple one-way deceleration members moving downward with the bearing plate 3, the driving rod one 13 on each connecting rod 9 drives the corresponding rotating cylinder 11 to rotate counterclockwise. When each rotating cylinder 11 rotates counterclockwise, since the inner ring 10a and the outer ring 10b of the one-way bearing 10 are in a free state and the driving friction ring 8 will not rotate due to the rotation of the rotating cylinder 11, therefore, the one-way deceleration member does not affect the downward movement speed of the bearing plate 3, and a part of the gravitational potential energy of the chassis 5 is converted into the potential energy of the spring 6. And during the process of the bearing plate 3 moving downward, the vertical rods 20 on each limit member move downward with the bearing plate 3. When the left vertical rod 20 moves downward, the driving rod two 24 on the vertical rod 20 drives the corresponding driving cylinder 19 to rotate counterclockwise, and then drives the two sliding rods 14 on the left limit member to move relative to each other, and the elastic plate 15 connected to the two sliding rods 14 bends and deforms more. Therefore, a part of the gravitational potential energy of the chassis 5 is converted into the potential energy of the elastic plate 15. And during the process of the elastic plate 15 bending and deforming more, it drives the connected rubber plate 16 to move towards the chassis 5; during the process of the bearing plate 3 moving downward, the rubber plates 16 on the two limit members both move towards the chassis 5, thereby clamping and limiting the chassis 5, limiting the downward movement distance of the chassis 5, and thus being able to ensure the stability of the chassis 5; After the chassis moves downward until it stops, under the restoring force of the spring 6, the bearing plate 3 drives the chassis 5 to move upward. The connecting rod 9 on each one-way deceleration member moves upward along with the bearing plate 3. The driving rod one 13 on each connecting rod 9 drives the corresponding rotating cylinder 11 to rotate clockwise. When each rotating cylinder 11 rotates clockwise, since the inner ring 10a and the outer ring 10b of the one-way bearing 10 are in a locked state, each rotating cylinder 11 drives the connected moving friction ring 8 to rotate through the one-way bearing 10. The outer ring of each moving friction ring 8 is in frictional contact with the inner ring of the fixed friction ring 7 on the corresponding one-way deceleration member, thereby being able to limit the upward movement speed of the spring 6 and the bearing plate 3, and further being able to slow down the rapid rebound of the spring 6 and weaken the resilience given by the spring 6 to the bearing plate 3 and the chassis 5. Moreover, during the upward movement of the bearing plate 3, the two vertical rods 20 move upward along with the bearing plate 3. The driving rod two 24 on the left vertical rod 20 drives the corresponding driving cylinder 19 to rotate clockwise, and the two left sliding rods 14 move away from each other, thereby causing the elastic plate 15 connected by the two sliding rods 14 to move towards the initial state. Similarly, during the upward movement of the right vertical rod 20, the right elastic plate 15 returns to the initial state. During the process of the two elastic plates 15 moving towards the initial state, the two rubber plates 16 move away from each other, releasing the clamping and limiting of the chassis 5, enabling the upward movement of the chassis 5 without interference. During the elongation of the spring, a part of the potential energy of the spring is converted into the internal energy generated by the friction between each moving friction ring and the corresponding fixed friction ring until the chassis moves upward to a stationary state. Therefore, the resilience of the spring to the bearing plate and the chassis can be reduced. Moreover, in the initial state of the present invention, the bearing plate contacts the cross plate below the two limiting members. When the bearing plate moves upward, it is avoided that the upward movement stroke of the spring exceeds the initial state. Therefore, it is possible to avoid the occurrence of simple harmonic motion during the rebound of the spring and ensure the stability of the chassis. And because when the bearing plate moves upward, a part of the potential energy of the spring is converted into the internal energy generated by the friction between each moving friction ring and the corresponding fixed friction ring, the remaining potential energy of the spring will not drive the bearing plate and the chassis to move upward to the initial state. When the bearing plate moves upward to a stationary state, the bearing plate is close to the cross plate below the two limiting members, and the bearing plate will not collide with the cross plate below the two limiting members, and will not cause the chassis to be subjected to an impact force when moving upward. After the chassis stops, slowly lift the chassis upward. The bearing plate moves upward along with the chassis. After the bearing plate moves upward to contact the cross plate on the two limiting members, the present invention returns to the initial state.

[0029] The preferred embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the above embodiments. Without departing from the spirit of the present invention, that is, within the scope of disclosure, any equivalent or equivalent deformation or replacement of the technical solutions of the invention belongs to the protection scope of the present invention.

Claims

1. A chassis protection device with a shockproof buffer mechanism, characterized in that: The invention comprises an outer box (1), a bearing plate (3), a one-way speed reducing member and a stopper; the lower part of the outer box (1) is provided with a bearing plate (3) which slides up and down; the top surface of the bearing plate (3) is fixed with an outer box (5); a spring (6) is connected between the bearing plate (3) and the bottom plate of the outer box (1); the bottom surface of the bearing plate (3) is evenly distributed with one-way speed reducing members connected with the bottom plate of the outer box (1); the one-way speed reducing member comprises a fixed friction ring (7), a dynamic friction ring (8) and a connecting rod (9); the fixed friction ring (7) is fixed to the inner bottom surface of the outer box (1); the dynamic friction ring (8) is located inside the fixed friction ring (7); the outer ring surface of the dynamic friction ring is in friction contact with the inner ring surface of the fixed friction ring (7); the inner ring of the dynamic friction ring (8) is connected to a rotating drum (11) via a one-way bearing (10); the lower end (11) of the rotating drum is connected to the outer box (1). The bottom plate of the box (1) is rotatably connected, the upper end of the connecting rod (9) is fixedly connected to the bearing plate (3), and the lower end extends into the rotating drum (11). When the connecting rod (9) moves downward, the rotating drum (11) is driven to rotate independently. When the connecting rod moves upward, the rotating drum (11) and the dynamic friction ring (8) are driven to rotate synchronously. A limiter is provided on both sides of the chassis (5) above the bearing plate (3). The limiter on the left side includes a slide bar (14) and an elastic plate (15). The elastic plate (15) is an arc plate with a protrusion facing right. The upper and lower ends of the elastic plate (15) are connected to the slide bar (14). The two slide bars (14) are slidably connected to the left side plate of the outer box (1). The middle part of the right side surface of the elastic plate (15) is connected to a rubber plate (16). When the bearing plate (3) moves downward, the two slide bars (14) are driven to move relative to each other through the transmission member.

2. A chassis protection device with a shockproof buffer mechanism according to claim 1, characterized in that: The inner ring surface of the inner ring (10a) of the one-way bearing (10) is fixedly connected to the outer wall of the rotating drum (11), and the outer ring surface of the outer ring (10b) of the one-way bearing (10) is fixedly connected to the inner ring surface of the dynamic friction ring (8); a spiral groove (12) is provided on the inner wall of the rotating drum (11), and the direction of rotation of the spiral groove (12) is right-handed; a driving rod (13) extending into the spiral groove (12) is fixed to the lower end of the peripheral wall of the connecting rod (9).

3. A chassis protection device with a shockproof buffer mechanism according to claim 2, characterized in that: When the rotating drum (11) rotates counterclockwise, the inner ring (10a) and the outer ring (10b) of the one-way bearing (10) are in a free state, and when the rotating drum (11) rotates clockwise, the inner ring (10a) and the outer ring (10b) of the one-way bearing (10) are in a locked state.

4. The chassis protection device with a shockproof buffer mechanism according to claim 1, characterized in that: The fixed friction ring (7) and the dynamic friction ring (8) are both circular ring bodies made of metal-based fiber-reinforced material; and the elastic plate (15) is an arc plate made of spring steel material.

5. The chassis protection device with a shockproof buffer mechanism according to claim 1, characterized in that: A sliding hole (17) is provided on the left side plate of the outer box (1), and the two sliding rods (14) on the left side limiter are both arranged horizontally, and the two sliding rods (14) on the left side limiter slide into the sliding hole (17).

6. A chassis protection device with a shockproof buffer mechanism according to claim 5, characterized in that: The transmission member on the left side comprises a transverse plate (18), a driving cylinder (19) and a vertical rod (20). The upper and lower sides of the left sliding hole (17) are provided with transverse plates (18). The two transverse plates are fixed to the inner surface of the left side of the outer box (1). The driving cylinder (19) is rotatably connected between the two transverse plates (18). The upper and lower parts of the outer wall of the driving cylinder (19) are provided with external threads 1 (21) and 2 (22) with opposite rotation directions. The upper part of the driving cylinder (19) is threadedly connected to the upper sliding hole (17) through the external threads 1 (21). The rod (14) is threadedly connected to the lower sliding rod (14) through the second external thread (22), and the inner wall of the driving cylinder (19) is provided with two spiral grooves (23). The bearing plate (3) is lower than the lower horizontal plate (18), and a vertical rod (20) is fixed to the left part of the top surface of the bearing plate (3). The upper end of the vertical rod (20) movably passes through the lower horizontal plate (18) and extends into the driving cylinder (19). The upper end of the peripheral wall of the vertical rod (20) is fixed with two driving rods (24) that slide and extend into the second spiral groove.

7. A chassis protection device with a shockproof buffer mechanism according to claim 6, characterized in that: The spiral groove 2 on the left driving cylinder (19) is rotated in a right-hand direction; when the vertical rod (20) moves downward, the driving rod 2 (24) on the vertical rod (20) drives the driving cylinder (19) to rotate counterclockwise, and the two sliding rods (14) connected to the driving cylinder (19) move relative to each other.

8. The chassis protection device with a shockproof buffer mechanism according to claim 6, characterized in that: The left portion of the top surface of the bearing plate (3) contacts the horizontal plate (18) at the lower portion of the left limiter, the spring is in a semi-compressed state, the two left slide bars (14) respectively contact the upper and lower ends of the slide holes (17), and the elastic plate (15) is in a natural state.

9. A chassis protection device with a shockproof buffer mechanism according to claim 8, characterized in that: When the elastic plate (15) on the left side is in a natural state, there is a gap between the rubber plate (16) on the elastic plate (15) and the left outer surface of the chassis (5).

10. The chassis protection device with a shockproof buffer mechanism according to claim 1, characterized in that: A plurality of through holes (25) are provided on the rear side plate of the outer box (1).

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