A computer mainframe housing strength testing device

Abstract

The present invention relates to the field of strength testing of host computer casings, and specifically to a strength testing device for a computer host casing, which includes a test bench and two conveyor belts. The two conveyor belts are symmetrically arranged at both ends of the test bench; it further includes: a knocking mechanism for performing knocking detection on the computer host casing, and the knocking mechanism is provided in two groups. The two groups of knocking mechanisms are symmetrically arranged on both sides of the test bench; a conveying plate slidably installed in the middle of the test bench. In the strength testing of the two sides of the computer case casing, through the cooperation of components such as the knocking mechanism, the conveying mechanism, and the lifting assembly, the intermittent forward movement and elevation of the casing on the lifting plate are achieved, so as to simultaneously simulate the strength test of the human foot kicking different positions of the casing multiple times at different positions on both sides of the casing, thereby expanding the test scope, making the strength test of the casing more targeted and more practical.

Description

Technical Field

[0001] The invention relates to the field of host casing strength testing, in particular to a computer host casing strength testing device. Background Art

[0002] A computer is mainly composed of a host, a monitor, and peripherals such as a mouse and keyboard connected by data cables. The host, which is the core of the computer, has its motherboard, CPU, graphics card, memory, etc. all wrapped and protected inside the shell. In order to ensure the host's resistance to physical deformation, the computer host shell needs to be strength tested during processing to meet design requirements.

[0003] The existing patent CN116539402A discloses a computer mainframe shell strength test device, including a base and a gantry fixedly mounted on the top outer wall of the base, the top of the gantry is provided with a second driving pressure part, the bottom of the second driving pressure part is connected to a top pressure plate by transmission, the left and right sides of the gantry are slidably matched with side pressure plates through guide rods, and the outer wall of the gantry is provided with a driving pressure part 1 for driving the side pressure plates, the top of the base is connected to a carrier through the main shaft rotation, and the bottom outer wall of the base is fixedly mounted with a motor. The above invention sets a rotatable carrier as a load-bearing platform, cooperates with the top pressure plate to perform longitudinal strength testing, and then combines with the side pressure plates on both sides to perform transverse strength testing, so that the strength test of three sets of planes can be achieved at one time without manually adjusting the position of the mainframe shell again.

[0004] In the process of implementing the solution, the inventor discovered that the following problems in the prior art have not been well resolved: in actual use of the host chassis, it is usually placed on one side below the desktop, and during use, the user usually kicks the side of the chassis with their feet without paying attention. In addition, the strength and angle of a person's feet kicking the chassis are different, and there is an arbitrary height position for kicking one side of the chassis, which makes the above-mentioned strength test of the chassis less targeted, resulting in a lower actual test. Summary of the invention

[0005] The purpose of the present invention is to provide a computer host shell strength test device to solve the problems raised in the above background technology. To achieve the above purpose, the present invention provides the following technical solutions: a computer host shell strength test device, comprising: a test bench and two conveyor belts, the two conveyor belts are symmetrically arranged at both ends of the test bench;

[0006] Also includes:

[0007] A knocking mechanism for detecting the knocking of a computer host housing, and the knocking mechanism is provided in two groups. The two groups of knocking mechanisms are symmetrically arranged on both sides of the test bench. A conveying plate is slidably installed in the middle of the test bench, and lifting rods are symmetrically slidably installed on the conveying plate in the vertical direction. A plurality of trapezoidal blocks are fixedly installed at equal intervals on the side wall of the lifting rod. A lifting plate is fixedly installed between the tops of the two lifting rods, and a lifting assembly is provided between the bottom of the conveying plate and the bottom of the test bench for intermittently pushing the lifting plate upward.

[0008] The knocking mechanism includes: a first bracket fixedly installed on one side of the bottom of the test bench; a knocking hammer hingedly installed on one side of the lower end of the first bracket; a telescopic sleeve hingedly installed at the lower end of the knocking hammer, and one end of the telescopic sleeve is hingedly installed with the bottom of the first bracket; a spring sleeved on the telescopic sleeve; a pressing block fixedly installed on the knocking hammer; a motor fixedly installed on the first bracket, and the output end of the motor is fixedly connected with a first rotating shaft; a rotating disk fixedly installed on the surface of the first rotating shaft, and a cam is adjustably installed on the rotating disk; and a conveying mechanism provided at the end of the first rotating shaft for intermittently moving the conveying plate.

[0009] Preferably, one end of the cam is rotatably installed on the surface of the rotating disk through a pin shaft. An arc-shaped groove is formed on the surface of the cam, and an adjusting bolt is threadedly installed between the arc-shaped groove and the rotating disk.

[0010] Preferably, the conveying mechanism includes: a swinging rod fixedly installed at the end of the first rotating shaft; a dividing disk meshing with the swinging rod; a second rotating shaft fixedly connected with the dividing disk, and the second rotating shaft is rotatably installed on one side of the bottom of the test bench; a toothless gear fixedly installed in the middle of the second rotating shaft; a first rack meshing with the toothless gear, and one side of the first rack is fixedly installed at the bottom of the conveying plate; and a resetting assembly provided on the conveying plate for driving it to reset.

[0011] Preferably, a plurality of grooves are equidistantly formed along the circumference on one side of the dividing disk, and one end of the swinging rod meshes in the adjacent groove.

[0012] Preferably, the resetting assembly includes: guide rods symmetrically and fixedly installed at one end of the conveying plate; positioning blocks movably sleeved on the guide rods, and one end of the positioning block is fixedly installed on the side wall of the adjacent conveyor belt; and a reset spring sleeved on the guide rods, and both ends of the reset spring are respectively fixedly installed between the side wall of the positioning block and one end of the guide rod.

[0013] Preferably, the lifting assembly includes: a second bracket fixedly installed at the bottom of the conveying plate; a third bearing rotatably installed on the second bracket in the horizontal direction; a turntable fixedly installed on the third bearing; a plurality of push rods fixedly installed on the turntable at equal intervals along the circumference, and the push rods are matched with the adjacent trapezoidal blocks; a limiting member rotatably installed at one side of the bottom of the second bracket, and the bottom of one end of the limiting member is placed on the bottom of the adjacent trapezoidal block; a lever fixedly installed on the third bearing; a gear movably installed at one end of the third bearing; a second rack engaged with the gear, and one side of the second rack is fixedly installed at the bottom of the test bench.

[0014] Preferably, a chute is opened at one end of the third bearing, a slider is fixedly connected to the inner wall of the gear and is matched with the chute on the surface of the third bearing, a telescopic spring is sleeved on the surface of one end of the third bearing, and one end of the telescopic spring is fixedly installed on one side of the gear, and the other end of the telescopic spring is fixedly connected to the surface of one end of the third bearing.

[0015] Preferably, a baffle is fixedly connected to the side of the second rack away from the gear, a trapezoidal stop block is arranged at the end of one end of the second rack, and the top of the trapezoidal stop block is fixedly installed at the bottom of the test bench, and the trapezoidal stop block is matched with the side of the adjacent gear.

[0016] Preferably, damping slide rails are symmetrically and fixedly installed at the bottom of the conveying plate, and the telescopic ends of the damping slide rails are fixedly installed at the bottom of the lifting plate.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] In the present invention, during the knocking test on both sides of the chassis shell, through the cooperation of components such as the knocking mechanism, the conveying mechanism and the lifting assembly, the intermittent forward movement and elevation of the shell on the lifting plate are realized, so that the strength test of different positions on both sides of the shell can simultaneously simulate the intensity of a person's foot kicking different positions of the shell multiple times, thereby expanding the test range, making the strength test of the shell more targeted and more practical.

[0019] In the present invention, through the arrangement of components such as the reset assembly, the baffle and the trapezoidal stop block, when the gear moves to the limit position, the gear disengages from the engagement with the second rack under the action of the trapezoidal stop block. At this time, the toothless part of the toothless gear rotates to the lower part of the first rack, so that it no longer engages with the first rack. Through the elastic reset of the reset spring, the conveying plate is quickly pulled back for reset, which is convenient for the next use.

[0020] In the present invention, through the arrangement of components such as a rotating disk, a cam, and an adjusting bolt, the angle at which the cam extends out of the rotating disk can be adjusted, so that the force with which the striking hammer impacts the side wall of the housing is changed, thereby achieving the change of the impact force of the striking hammer according to the test requirements, and improving the practicability of the test equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a right-side top view schematic diagram of the overall assembly structure of the present invention;

[0022] Figure 2 of the present invention Figure 1 is an enlarged schematic diagram of the structure at A in

[0023] Figure 3 is a top view of structures such as a conveying plate, a lifting plate, and a reset assembly in the present invention;

[0024] Figure 4 is a top view of structures such as a first rotating shaft and a conveying mechanism in the present invention;

[0025] Figure 5 is a left-side top view schematic diagram of the overall assembly structure of the present invention;

[0026] Figure 6 is a bottom view schematic diagram of the overall assembly structure of the present invention;

[0027] Figure 7 of the present invention Figure 6 is an enlarged schematic diagram of the structure at B in

[0028] Figure 8 is a right-side cross-sectional view schematic diagram of the overall assembly structure of the present invention;

[0029] Figure 9 of the present invention Figure 8 is an enlarged schematic diagram of the structure at C in

[0030] Figure 10 is a right-side cross-sectional view schematic diagram of structures such as a conveying plate, a lifting plate, and a lifting assembly in the present invention;

[0031] Figure 11 of the present invention Figure 10 is a left-side view of structures such as a third bearing, a lever, and a gear in

[0032] Figure 12 is a bottom view of structures such as a test bench, a baffle, and a trapezoidal stop block in the present invention;

[0033] Figure 13 is a bottom view of structures such as a second rack, a baffle, and a trapezoidal stop block in the present invention;

[0034] Figure 14 is a right-side view of structures such as a lifting plate, a lifting rod, and a lever in the present invention;

[0035] Figure 15 These are the schematic diagrams of structures such as the conveying plate, lifting plate, and damping slide rail in the present invention.

[0036] In the figure: 1, test bench; 101, conveying plate; 102, lifting plate; 2, conveyor belt; 3, knocking mechanism; 301, first bracket; 302, knocking hammer; 303, telescopic sleeve; 304, spring; 305, extrusion block; 306, motor; 307, first rotating shaft; 308, rotating disc; 3081, adjusting bolt; 309, cam; 3091, arc groove; 4, conveying mechanism; 401, swing rod; 402, indexing disc; 4021, groove; 403, second rotating shaft; 404, toothless gear; 405, first rack; 5, reset assembly; 501, guide rod; 502, positioning block; 503, reset spring; 6, lifting rod; 601, trapezoidal block; 602, damping slide rail; 7, lifting assembly; 701, second bracket; 702, third bearing; 703, turntable; 7031, push rod; 704, limiting member; 705, lever; 706, gear; 7061, telescopic spring; 707, second rack; 7071, baffle; 7072, trapezoidal stop block. Specific embodiments

[0037] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0038] Please refer to Figures 1 to 15 , the present invention provides a technical solution: a computer mainframe housing strength testing device, including: a test bench 1 and two conveyor belts 2, and the two conveyor belts 2 are symmetrically arranged at both ends of the test bench 1;

[0039] It further includes:

[0040] A knocking mechanism 3 for knocking and detecting the computer mainframe housing, and the knocking mechanism 3 is provided in two groups. The two groups of knocking mechanisms 3 are symmetrically arranged on both sides of the test bench 1. A conveying plate 101 is slidably installed in the middle of the test bench 1, and lifting rods 6 are symmetrically and slidably installed on the conveying plate 101 in the vertical direction. A plurality of trapezoidal blocks 601 are fixedly installed at equal intervals on the side walls of the lifting rods 6. A lifting plate 102 is fixedly installed between the tops of the two lifting rods 6, and a lifting assembly 7 for intermittently pushing the lifting plate 102 to rise is provided between the bottom of the conveying plate 101 and the bottom of the test bench 1; It should be noted that the lifting plate 102 is flush with the height of the conveyor belt 2, and the housing can be conveyed from the conveyor belt 2 to the surface of the lifting plate 102.

[0041] The knocking mechanism 3 includes: a first bracket 301 fixedly installed on one side of the bottom of the test bench 1; a knocking hammer 302 hingedly installed on one side of the lower end of the first bracket 301; a telescopic sleeve 303 hingedly installed at the lower end of the knocking hammer 302, and one end of the telescopic sleeve 303 is hingedly installed with the bottom of the first bracket 301; a spring 304 sleeved on the telescopic sleeve 303. The telescopic sleeve 303 consists of a hinge rod and a hinge sleeve. One end of the hinge rod is movably inserted into the hinge sleeve, and the spring 304 is sleeved between the hinge rod and the hinge sleeve. When the knocking hammer 302 is deflected by extrusion, the hinge rod moves into the hinge sleeve. When the extrusion on the knocking hammer 302 is released, the spring 304 elastically resets and can push the hinged knocking hammer 302 to reset and strike the computer mainframe housing for impact testing; an extrusion block 305 fixedly installed on the knocking hammer 302; a motor 306 fixedly installed on the first bracket 301. It should be noted here that the motor 306 is preferably a stepping motor, and its model is: NEMA 17. By setting the parameters of the motor 306, it rotates 360 degrees each time, and the output end of the motor 306 is fixedly connected with a first rotating shaft 307; a rotating disk 308 fixedly installed on the surface of the first rotating shaft 307, and a cam 309 is adjustably installed on the rotating disk 308; and a conveying mechanism 4 arranged at the end of the first rotating shaft 307 for pushing the conveying plate 101 to move intermittently.

[0042] In this embodiment, as Figure 1 and Figure 15 shown, one end of the cam 309 is rotatably installed on the surface of the rotating disk 308 through a pin shaft. An arc-shaped groove 3091 is formed on the surface of the cam 309, and an adjusting bolt 3081 is threadedly installed between the arc-shaped groove 3091 and the rotating disk 308.

[0043] When it is necessary to change the impact force of the knocking hammer 302 according to the test requirements, first, the adjusting bolt 3081 is screwed out from the arc-shaped groove 3091, the cam 309 is rotated to change the inclination angle of the cam 309 on the rotating disk 308. At this time, the adjusting bolt 3081 is installed on the arc-shaped groove 3091 to fix the cam 309. At this time, during the rotation of the rotating disk 308, since the angle of the cam 309 protruding from the rotating disk 308 has changed, the cam 309 presses on the extrusion block 305, causing the angle of deflection of the extrusion block 305 driving the knocking hammer 302 to change. Due to the different deflection angles of the knocking hammer 302, the force of the knocking hammer 302 striking the side wall of the housing changes, thereby improving the practicability of the testing equipment.

[0044] In this embodiment, as Figure 1 and Figure 15As shown in the figure, the conveying mechanism 4 includes: a swing rod 401 fixedly installed at the end of the first rotating shaft 307; an indexing plate 402 engaged with the swing rod 401; a second rotating shaft 403 fixedly connected to the indexing plate 402, and the second rotating shaft 403 is rotatably installed on one side of the bottom of the test bench 1. It should be added here that positioning sleeves are symmetrically and rotatably installed on the surface of the second rotating shaft 403, and the tops of the positioning sleeves are fixedly installed on the bottom of the test bench 1; a toothless gear 404 fixedly installed in the middle of the second rotating shaft 403; a first rack 405 engaged with the toothless gear 404, and one side of the first rack 405 is fixedly installed at the bottom of the conveying plate 101; and a reset assembly 5 arranged on the conveying plate 101 to drive it to reset.

[0045] In this embodiment, as Figure 1 and Figure 15 shown, a plurality of grooves 4021 are equidistantly arranged along the circumference on one side of the indexing plate 402, and one end of the swing rod 401 is engaged in the adjacent grooves 4021.

[0046] It should be noted here that a guide groove is provided between two adjacent grooves 4021, and an arc-shaped guide piece is fixedly installed on the swing rod 401. The stability of the engagement between the swing rod 401 and the groove 4021 is improved through the arrangement of the guide groove and the arc-shaped guide piece, and the axis of the arc-shaped guide piece and the axis of the first rotating shaft 307 are on the same horizontal plane;

[0047] When the first rotating shaft 307 drives the swing rod 401 to rotate, the swing rod 401 rotates with the arc-shaped guide piece as the axis, so that the swing rod 401 pushes the indexing plate 402 to rotate counterclockwise by a certain angle. When the swing rod 401 rotates one circle, the swing rod 401 is engaged in the corresponding groove 4021 again. At this time, the indexing plate 402 drives the toothless gear 404 on the second rotating shaft 403 to complete the same angle of rotation, so that the toothless gear 404 pushes the first rack 405 at the bottom of the conveying plate 101 to move forward one step, causing the housing on the conveying plate 101 to displace horizontally. At the same time, the knocking hammer 302 knocks the displaced housing again.

[0048] In this embodiment, as Figure 1 and Figure 15 shown, the reset assembly 5 includes: guide rods 501 symmetrically and fixedly installed at one end of the conveying plate 101; positioning blocks 502 movably sleeved on the guide rods 501, and one end of the positioning block 502 is fixedly installed on the side wall of the adjacent conveyor belt 2; a reset spring 503 sleeved on the guide rods 501, and both ends of the reset spring 503 are respectively fixedly installed between the side wall of the positioning block 502 and one end of the guide rod 501.

[0049] When the toothless part of the toothless gear 404 rotates to the lower side of the first rack 405, the toothless gear 404 disengages from the first rack 405, and the swing rod 401 engages in the corresponding groove 4021 to restrict the rotation of the second rotating shaft 403. At the same time, the gear 706 disengages from the second rack 707 after moving into place and being squeezed by the trapezoidal stop 7072. At this time, the return spring 503 is elastically reset after being stressed, pushing the guide rod 501 to move back to its original position, so that the guide rod 501 drives the conveying plate 101 to move to the initial position, facilitating the next test of the computer mainframe housing.

[0050] In this embodiment, as Figure 1 and Figure 15 shown, the lifting assembly 7 includes: a second bracket 701 fixedly installed at the bottom of the conveying plate 101; a third bearing 702 rotatably installed horizontally on the second bracket 701. It should be noted that the third bearing 702 is rotatably installed on the second bracket 701 through a bearing; a turntable 703 fixedly installed on the third bearing 702; a plurality of push rods 7031 fixedly installed on the turntable 703 at equal intervals along the circumference. Here, it should be added that one end of the push rod 7031 is provided with an inclined surface that cooperates with the trapezoidal block 601. When the turntable 703 drives the push rod 7031 to rotate clockwise, the push rod 7031 will push the trapezoidal block 601 to rise, thereby driving the lifting rod 6 to rise a certain distance, and the push rod 7031 cooperates with the adjacent trapezoidal block 601; a limiting member 704 rotatably installed on one side of the bottom of the second bracket 701, and the bottom of one end of the limiting member 704 is placed on the bottom of the adjacent trapezoidal block 601. Here, it should be added that a stop strip is provided on one side of the lower end of the limiting member 704 to limit the lower end of the limiting member 704 from flipping towards the lifting rod 6, and a connecting rod is fixed on one side of the upper end of the limiting member 704. The bottom of one end of the limiting member 704 is provided with a trapezoidal surface that cooperates with the trapezoidal block 601. When the trapezoidal block 601 moves upward and the trapezoidal surface of the trapezoidal block 601 presses on the trapezoidal surface at the bottom of the limiting member 704, the lower end of the limiting member 704 will flip a small distance away from the trapezoidal block 601, causing the trapezoidal block 601 to disengage from the bottom of the trapezoidal block 601. When the lifting rod 6 rises a certain distance, the connecting rod at the upper end of the limiting member 704 drives the limiting member 704 to flip back to its original position, so that the corresponding trapezoidal block 601 is placed on the limiting member 704 again, restricting the downward movement of the lifting rod 6; a lever 705 fixedly installed on the third bearing 702; a gear 706 movably installed at one end of the third bearing 702; a second rack 707 meshing with the gear 706, and one side of the second rack 707 is fixedly installed at the bottom of the test bench 1.

[0051] When the turntable 703 rotates one full circle, the lever 705 on the third bearing 702 will toggle the connecting rod on one side of the upper end of the limit member 704, causing the lower end of the limit member 704 to flip away from the trapezoidal block 601. At the same time, the push rod 7031 no longer contacts the trapezoidal block 601, allowing the lifting plate 102 to drive the housing to descend under its own gravity.

[0052] In this embodiment, as Figure 1 and Figure 15 shown, a chute is provided at one end of the third bearing 702. A slider that mates with the chute on the surface of the third bearing 702 is fixedly connected to the inner wall of the gear 706. A telescopic spring 7061 is sleeved on the surface of one end of the third bearing 702, and one end of the telescopic spring 7061 is fixedly installed on one side of the gear 706, while the other end of the telescopic spring 7061 is fixedly connected to the surface of one end of the third bearing 702.

[0053] In this embodiment, as Figure 1 and Figure 15 shown, a baffle 7071 is fixedly connected to the side of the second rack 707 away from the gear 706. A trapezoidal stop 7072 is provided at one end of the second rack 707, and the top of the trapezoidal stop 7072 is fixedly installed at the bottom of the test bench 1. The trapezoidal stop 7072 mates with one side of the adjacent gear 706.

[0054] When the conveying plate 101 drives the gear 706 to move to the extreme position, one side of the gear 706 is then squeezed by the inclined surface of the trapezoidal stop 7072, causing the gear 706 to move closer to the baffle 7071. At this time, the gear 706 disengages from the engagement with the second rack 707. At the same time, the toothless part of the toothless gear 404 rotates below the first rack 405, and the toothless gear 404 no longer engages with the first rack 405. Through the elastic reset of the return spring 503, the conveying plate 101 is quickly pulled back for reset, facilitating the next use. After the conveying plate 101 completes the reset, the telescopic spring 7061 elastically resets to push the gear 706 to engage with the second rack 707 again. Considering the wear of the gear 706, a number of balls are equidistantly installed along the circumference on the side of the gear 706 in contact with the baffle 7071, thereby reducing the friction between the two and reducing wear.

[0055] In this embodiment, as Figure 1 and Figure 15 shown, damping slide rails 602 are symmetrically and fixedly installed at the bottom of the conveying plate 101, and the telescopic ends of the damping slide rails 602 are fixedly installed at the bottom of the lifting plate 102.

[0056] During the descent of the lifting plate 102, through the provision of the damping slide rails 602, the impact generated when the lifting plate 102 descends can be mitigated, improving stability.

[0057] Usage method and advantages of the present invention: For a computer mainframe housing strength testing device, the working process is as follows:

[0058] As Figure 1 and Figure 15 shown, when the computer mainframe housing to be subjected to strength testing is conveyed from the conveyor belt 2 to the surface of the lifting plate 102, the motor 306 is started. The output end of the motor 306 drives the first rotating shaft 307 to rotate one circle, so that the first rotating shaft 307 drives the cam 309 on the rotating disk 308 to rotate one circle. At this time, the cam 309 squeezes and pushes the extrusion block 305 on the knocking hammer 302, causing the knocking hammer 302 to deflect. The telescopic sleeve 303 is stressed and squeezed to contract. When the knocking hammer 302 is released from the extrusion, the spring 304 on the telescopic sleeve 303 elastically resets, pushing the articulated knocking hammer 302 to reset and strike a corner position above the computer mainframe housing for impact testing;

[0059] And while the first rotating shaft 307 is rotating, the first rotating shaft 307 drives the swing rod 401 to rotate. The swing rod 401 rotates around the arc-shaped guide piece as the axis, so that the swing rod 401 pushes the indexing disk 402 to rotate counterclockwise by a certain angle. When the swing rod 401 rotates one circle, the swing rod 401 meshes again in the corresponding groove 4021. At this time, the indexing disk 402 drives the toothless gear 404 on the second rotating shaft 403 to complete the same angle of rotation, so that the toothless gear 404 pushes the first rack 405 at the bottom of the conveying plate 101 forward by one step, causing the housing on the conveying plate 101 to displace horizontally, and at the same time, the knocking hammer 302 strikes the displaced housing again;

[0060] At the same time, during the horizontal movement of the conveying plate 101, the gear 706 on the second bracket 701 at the bottom of the conveying plate 101 meshes with the second rack 707, causing the gear 706 to drive the third bearing 702 to rotate. At this time, the turntable 703 drives the push rod 7031 to rotate clockwise, and the push rod 7031 pushes the trapezoidal block 601 to rise, thereby driving the lifting rod 6 to rise a certain distance, so that the lifting rod 6 drives the lifting plate 102 to rise vertically. Through the intermittent advancement and elevation of the housing, it is possible to simultaneously simulate the strength test of a person's foot kicking different positions on both sides of the housing multiple times, thereby expanding the test range;

[0061] When the conveying plate 101 drives the gear 706 to move to the limit position, at this time, one side of the gear 706 is squeezed by the inclined surface of the trapezoidal stop 7072, causing the gear 706 to approach the baffle 7071. At this time, the gear 706 disengages from the engagement with the second rack 707. At the same time, the toothless part of the toothless gear 404 rotates to the lower part of the first rack 405, and the toothless gear 404 no longer meshes with the first rack 405. Through the elastic reset of the return spring 503, the conveying plate 101 is quickly pulled back for reset, facilitating the next use;

[0062] In addition, by screwing the adjusting bolt 3081 out of the arc-shaped groove 3091, rotating the cam 309 to change the inclination angle of the cam 309 on the rotating disc 308, and then installing the adjusting bolt 3081 on the arc-shaped groove 3091 to fix the cam 309. During the rotation of the rotating disc 308, since the angle of the cam 309 protruding from the rotating disc 308 changes, the cam 309 presses on the pressing block 305, causing the angle of deflection of the knocking hammer 302 driven by the pressing block 305 to change. Due to the different deflection angles of the knocking hammer 302, the force with which the knocking hammer 302 impacts the side wall of the housing changes, so as to achieve the change of the impact force of the knocking hammer 302 according to the test requirements.

[0063] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. A computer mainframe housing strength testing device, comprising: A test bench (1) and two conveyor belts (2), the two conveyor belts (2) are symmetrically arranged at both ends of the test bench (1); It is characterized in that it further includes: A knocking mechanism (3) for knocking detection of the computer host housing, and the knocking mechanism (3) is provided in two groups, the two groups of knocking mechanisms (3) are symmetrically arranged on both sides of the test bench (1), a conveying plate (101) is slidably installed in the middle of the test bench (1), and lifting rods (6) are symmetrically slidably installed in the vertical direction on the conveying plate (101), a plurality of trapezoidal blocks (601) are equidistantly and fixedly installed on the side wall of the lifting rod (6), a lifting plate (102) is fixedly installed between the tops of the two lifting rods (6), and a lifting assembly (7) is provided between the bottom of the conveying plate (101) and the bottom of the test bench (1) for intermittently pushing the lifting plate (102) to rise; The knocking mechanism (3) includes: a first bracket (301) fixedly installed on one side of the bottom of the test bench (1); a knocking hammer (302) hingedly installed on one side of the lower end of the first bracket (301); a telescopic sleeve (303) hingedly installed on the lower end of the knocking hammer (302), and one end of the telescopic sleeve (303) is hingedly installed with the bottom of the first bracket (301); a spring (304) sleeved on the telescopic sleeve (303); a pressing block (305) fixedly installed on the knocking hammer (302); a motor (306) fixedly installed on the first bracket (301), and the output end of the motor (306) is fixedly connected with a first rotating shaft (307); a rotating disk (308) fixedly installed on the surface of the first rotating shaft (307), and a cam (309) is adjustably installed on the rotating disk (308); and a conveying mechanism (4) provided at the end of the first rotating shaft (307) for intermittently moving the conveying plate (101); The lifting assembly (7) includes: a second bracket (701) fixedly installed on the bottom of the conveying plate (101); a third bearing (702) horizontally rotatably installed on the second bracket (701); a turntable (703) fixedly installed on the third bearing (702); a plurality of push rods (7031) fixedly installed on the turntable (703) at equal intervals along the circumference, and the push rods (7031) cooperate with the adjacent trapezoidal blocks (601); a limiting member (704) rotatably installed on one side of the bottom of the second bracket (701), and the bottom of one end of the limiting member (704) is placed on the bottom of the adjacent trapezoidal block (601); a dial rod (705) fixedly installed on the third bearing (702); a gear (706) movably installed at one end of the third bearing (702); a second rack (707) engaged with the gear (706), and one side of the second rack (707) is fixedly installed on the bottom of the test bench (1).

2. The strength testing device for a computer mainframe housing according to claim 1, wherein: One end of the cam (309) is rotatably mounted on the surface of the rotating disk (308) through a pin shaft. An arc-shaped groove (3091) is formed on the surface of the cam (309), and an adjusting bolt (3081) is threadedly mounted between the inside of the arc-shaped groove (3091) and the rotating disk (308).

3. The strength testing device for a computer mainframe housing according to claim 1, characterized in that: The conveying mechanism (4) includes: a swing rod (401) fixedly mounted at the end of the first rotating shaft (307); an indexing disk (402) engaged with the swing rod (401); a second rotating shaft (403) fixedly connected to the indexing disk (402), and the second rotating shaft (403) is rotatably mounted on one side of the bottom of the test bench (1); a toothless gear (404) fixedly mounted in the middle of the second rotating shaft (403); a first rack (405) engaged with the toothless gear (404), and one side of the first rack (405) is fixedly mounted at the bottom of the conveying plate (101); and a reset assembly (5) arranged on the conveying plate (101) to drive its reset.

4. The strength testing device for a computer mainframe housing according to claim 3, wherein: A plurality of grooves (4021) are equidistantly formed along the circumference on one side of the indexing disk (402), and one end of the swing rod (401) is engaged in the adjacent groove (4021).

5. The strength testing device for a computer mainframe housing according to claim 3, characterized in that: The reset assembly (5) includes: guide rods (501) symmetrically and fixedly mounted at one end of the conveying plate (101); a positioning block (502) movably sleeved on the guide rods (501), and one end of the positioning block (502) is fixedly mounted on the side wall of the adjacent conveyor belt (2); a reset spring (503) sleeved on the guide rods (501), and both ends of the reset spring (503) are respectively fixedly mounted between the side wall of the positioning block (502) and one end of the guide rod (501).

6. The strength testing device for a computer mainframe housing according to claim 1, wherein: A chute is formed at one end of the third bearing (702). A slider that matches the chute on the surface of the third bearing (702) is fixedly connected to the inner wall of the gear (706). A telescopic spring (7061) is sleeved on the surface of one end of the third bearing (702), and one end of the telescopic spring (7061) is fixedly mounted on one side of the gear (706), and the other end of the telescopic spring (7061) is fixedly connected to the surface of one end of the third bearing (702).

7. The strength testing device for a computer mainframe housing according to claim 1, characterized in that: A baffle (7071) is fixedly connected to the side of the second rack (707) away from the gear (706). A trapezoidal stop block (7072) is arranged at one end of the second rack (707), and the top of the trapezoidal stop block (7072) is fixedly mounted on the bottom of the test bench (1). The trapezoidal stop block (7072) cooperates with the side of the adjacent gear (706).

8. A computer host housing strength testing device according to claim 1, characterized in that: Damping slide rails (602) are symmetrically and fixedly mounted at the bottom of the conveying plate (101), and the telescopic ends of the damping slide rails (602) are fixedly mounted at the bottom of the lifting plate (102).

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