Computer host shell strength testing equipment

Abstract

The invention relates to the field of host shell strength testing, in particular to computer host shell strength testing equipment which comprises a testing table and two conveying belts, and the two conveying belts are symmetrically arranged at the two ends of the testing table; the knocking mechanisms are used for carrying out knocking detection on the computer host shell, the number of the knocking mechanisms is two, and the two sets of knocking mechanisms are symmetrically arranged on the two sides of the testing table; and the conveying plate is slidably mounted in the middle of the test board. According to the strength testing equipment for the computer host shell, in a knocking test on the two sides of the case shell, the shell on the lifting plate intermittently advances and ascends under the cooperation of components such as the knocking mechanism, the conveying mechanism and the lifting assembly; in this way, the strength test that the feet of a person kick the different positions of the shell for multiple times can be simulated at the same time at the different positions of the two faces of the shell, so that the test range is widened, and the strength test of the shell is 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; Also includes: A knocking mechanism for knocking detection on a computer host housing, and the knocking mechanism is set 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 a lifting rod is symmetrically slidably installed on the conveying plate in the vertical direction, a plurality of trapezoidal blocks are fixedly installed on the side walls of the lifting rod at equal intervals, a lifting plate is fixedly installed between the tops of the two lifting rods, and a lifting component is arranged between the bottom of the conveying plate and the bottom of the test bench for pushing the lifting plate to intermittently rise; The knocking mechanism includes: a first bracket fixedly mounted on one side of the bottom of the test bench; a knocking hammer hingedly mounted on one side of the lower end of the first bracket; a telescopic sleeve hingedly mounted on the lower end of the knocking hammer, and one end of the telescopic sleeve is hingedly mounted on the bottom of the first bracket; a spring sleeved on the telescopic sleeve; an extrusion block fixedly mounted on the knocking hammer; a motor fixedly mounted on the first bracket, and the output end of the motor is fixedly connected to a first rotating shaft; a rotating disk fixedly mounted on the surface of the first rotating shaft, and a cam is adjustably mounted on the rotating disk; and a conveying mechanism arranged at the end of the first rotating shaft for pushing the conveying plate to move intermittently.

[0006] Preferably, one end of the cam is rotatably mounted on the surface of the rotating disk via a pin shaft, an arc groove is provided on the surface of the cam, and an adjusting bolt is threadedly mounted between the inside of the arc groove and the rotating disk.

[0007] Preferably, the conveying mechanism includes: a swing arm fixedly mounted at the end of the first rotating shaft; a dividing plate meshing with the swing arm; a second rotating shaft fixedly connected to the dividing plate, and the second rotating shaft is rotatably mounted on one side of the bottom of the test bench; a toothless gear fixedly mounted on the middle of the second rotating shaft; a first rack meshing with the toothless gear, and one side of the first rack is fixedly mounted on the bottom of the conveying plate; and a reset component arranged on the conveying plate to drive it to reset.

[0008] Preferably, a plurality of grooves are formed at equal intervals along the circumference of one side of the dividing plate, and one end of the swing rod is engaged in an adjacent groove.

[0009] Preferably, the reset assembly includes: a guide rod symmetrically fixedly mounted at one end of the conveying plate; a positioning block movably mounted on the guide rod, and one end of the positioning block is fixedly mounted on the side wall adjacent to the conveyor belt; and a reset spring mounted on the guide rod, and both ends of the reset spring are respectively fixedly mounted between the side wall of the positioning block and one end of the guide rod.

[0010] Preferably, the lifting assembly includes: a second bracket fixedly mounted on the bottom of the conveying plate; a third bearing rotatably mounted on the second bracket in the horizontal direction; a turntable fixedly mounted on the third bearing; a plurality of push rods fixedly mounted on the turntable at equal intervals along the circumference, and the push rods cooperate with adjacent trapezoidal blocks; a limit piece rotatably mounted on one side of the bottom of the second bracket, and the bottom of one end of the limit piece is placed on the bottom of the adjacent trapezoidal block; a lever fixedly mounted on the third bearing; a gear movably mounted on one end of the third bearing; a second rack meshing with the gear, and one side of the second rack is fixedly mounted on the bottom of the test bench.

[0011] Preferably, a slide groove is provided at one end of the third bearing, and a slider matching the slide groove on the surface of the third bearing is fixedly connected to the inner wall of the gear. A telescopic spring is mounted 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.

[0012] Preferably, a baffle is fixedly connected to the side of the second rack away from the gear, a trapezoidal stopper is provided at one end of the second rack, and the top of the trapezoidal stopper is fixedly mounted on the bottom of the test bench, and the trapezoidal stopper cooperates with one side of the adjacent gear.

[0013] Preferably, a damping slide rail is symmetrically fixedly mounted on the bottom of the conveying plate, and a telescopic end of the damping slide rail is fixedly mounted on the bottom of the lifting plate.

[0014] Compared with the prior art, the present invention has the following beneficial effects: In the present invention, in the knocking test on both sides of the chassis shell, the shell on the lifting plate is intermittently advanced and raised with the cooperation of components such as the knocking mechanism, the conveying mechanism and the lifting assembly, so that the strength test of different positions on both sides of the shell can be simulated simultaneously to simulate human feet kicking different positions of the shell multiple times, thereby expanding the test range and making the strength test of the shell more targeted and more practical.

[0015] In the present invention, by setting components such as a reset assembly, a baffle and a trapezoidal stopper, when the gear moves to the extreme position, the gear is disengaged from the second rack under the action of the trapezoidal stopper, and at the same time, the toothed portion of the toothed gear rotates to below the first rack, so that it is no longer engaged with the first rack, and is reset by the elasticity of the reset spring, thereby quickly pulling the conveyor plate to reset, which is convenient for next use.

[0016] In the present invention, by setting 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 hits the side wall of the shell can be changed, so as to change the impact force of the striking hammer according to test requirements, thereby improving the practicability of the testing equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of a right-side top view of the general assembly structure of the present invention; Figure 2 For the present invention Figure 1 A schematic diagram of the structure enlargement in the middle; Figure 3 It is a top view of the structures such as the conveying plate, the lifting plate and the reset assembly in the present invention; Figure 4 It is a top view of the first rotating shaft and the conveying mechanism and other structures in the present invention; Figure 5 It is a schematic diagram of a left-side top view of the general assembly structure in the present invention; Figure 6 It is a bottom view schematic diagram of the general assembly structure in the present invention; Figure 7 For the present invention Figure 6 A magnified schematic diagram of the structure at B in the middle; Figure 8 It is a right side cross-sectional schematic diagram of the general assembly structure in the present invention; Fig. 9 For the present invention Figure 8 A magnified schematic diagram of the structure at C in the middle; Fig.10 It is a right side cross-sectional schematic diagram of the conveying plate, lifting plate and lifting assembly in the present invention; Fig.11 For the present invention Fig.10 The left side view of the structure including the third bearing, lever and gear; Fig.12 A bottom view of the test bench, baffle, trapezoidal baffle and other structures in the present invention; Fig.13 It is a bottom view of the second rack, baffle plate, trapezoidal baffle and other structures in the present invention; Fig.14 It is a right side schematic diagram of the lifting plate, lifting rod and shifting rod in the present invention; Fig.15 It is a schematic diagram of the structures of the conveying plate, lifting plate and damping slide rail in the present invention.

[0018] 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 disk; 3081, adjusting bolt; 309, cam; 3091, arc groove; 4, conveying mechanism; 401, swing rod; 402, indexing plate; 4021, groove; 403, second rotating shaft; 4 04, 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, limiter; 705, lever; 706, gear; 7061, telescopic spring; 707, second rack; 7071, baffle; 7072, trapezoidal block. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technical personnel in this field without creative work are within the scope of protection of the present invention.

[0020] See also Figures 1 to 15 , the present invention provides a technical solution: a computer host shell 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; Also includes: A knocking mechanism 3 is provided for performing knocking detection on the computer host shell, 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 a lifting rod 6 is symmetrically slidably installed in the vertical direction on the conveying plate 101, a plurality of trapezoidal blocks 601 are fixedly installed at equal intervals on the side walls of the lifting rod 6, a lifting plate 102 is fixedly installed between the tops of the two lifting rods 6, and a lifting component 7 is provided between the bottom of the conveying plate 101 and the bottom of the test bench 1 for pushing the lifting plate 102 to intermittently rise; it should be noted that the lifting plate 102 is flush with the conveyor belt 2, and the shell can be transported from the conveyor belt 2 to the surface of the lifting plate 102.

[0021] The knocking mechanism 3 includes: a first bracket 301 fixedly mounted on one side of the bottom of the test bench 1; a knocking hammer 302 hingedly mounted on one side of the lower end of the first bracket 301; a telescopic sleeve 303 hingedly mounted on the lower end of the knocking hammer 302, and one end of the telescopic sleeve 303 is hingedly mounted on the bottom of the first bracket 301; and a spring 304 sleeved on the telescopic sleeve 303, the telescopic sleeve 303 is composed of a hinge rod and a hinge sleeve, one end of the hinge rod is movably inserted in the hinge sleeve, and the spring 304 sleeves Installed between the hinged rod and the hinged sleeve, when the knocking hammer 302 is squeezed and deflected, the hinged rod moves toward the inside of the hinged sleeve, and when the knocking hammer 302 is released from squeezing, the spring 304 elastically resets, and can push the hinged knocking hammer 302 to reset and hit the computer host housing to perform an impact test; an extrusion block 305 fixedly mounted on the knocking hammer 302; a motor 306 fixedly mounted 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 can rotate 360 ​​degrees each time, and the output end of the motor 306 is fixedly connected to the first rotating shaft 307; a rotating disk 308 fixedly mounted on the surface of the first rotating shaft 307, and a cam 309 is adjustably mounted 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.

[0022] In this embodiment, Figure 1 and Fig.15 As shown, one end of the cam 309 is rotatably mounted on the surface of the rotating disk 308 through a pin shaft, an arc groove 3091 is opened on the surface of the cam 309, and an adjusting bolt 3081 is threadedly installed between the inside of the arc groove 3091 and the rotating disk 308.

[0023] When it is necessary to change the impact force of the knocking hammer 302 according to the test requirements, first, unscrew the adjusting bolt 3081 from the arc groove 3091, and change the inclination angle of the cam 309 on the rotating disk 308 by rotating the cam 309. At this time, the adjusting bolt 3081 is installed on the arc groove 3091 to fix the cam 309. At this time, when the rotating disk 308 rotates, the angle at which the cam 309 extends out of the rotating disk 308 changes, so that the cam 309 is squeezed on the squeezing block 305, so that the squeezing block 305 drives the knocking hammer 302 to change its deflection angle. When the knocking hammer 302 deflects at different angles, the force with which the knocking hammer 302 hits the side wall of the shell changes, thereby improving the practicability of the testing equipment.

[0024] In this embodiment, Figure 1 and Fig.15As shown, the conveying mechanism 4 includes: a swing rod 401 fixedly mounted at the end of the first rotating shaft 307; a dividing plate 402 meshing with the swing rod 401; a second rotating shaft 403 fixedly connected to the dividing plate 402, and the second rotating shaft 403 is rotatably mounted on one side of the bottom of the test bench 1. It should be added here that a positioning sleeve is symmetrically mounted on the surface of the second rotating shaft 403, and the top of the positioning sleeve is fixedly mounted on the bottom of the test bench 1; a toothless gear 404 fixedly mounted on the middle of the second rotating shaft 403; a first rack 405 meshing with the toothless gear 404, and one side of the first rack 405 is fixedly mounted on the bottom of the conveying plate 101; and a reset component 5 arranged on the conveying plate 101 to drive it to reset.

[0025] In this embodiment, Figure 1 and Fig.15 As shown, a plurality of grooves 4021 are equidistantly formed on one side of the indexing plate 402 along the circumference, and one end of the swing rod 401 is engaged in an adjacent groove 4021 .

[0026] It should be noted that a guide groove is provided between two adjacent grooves 4021, and an arc-shaped guide piece is fixedly installed on the swinging rod 401, and the stability of the engagement between the swinging rod 401 and the groove 4021 is improved by the arrangement of the guide groove and the arc-shaped guide piece, and the axis of the arc-shaped guide piece is at the same level as the axis of the first rotating shaft 307; When the first rotating shaft 307 drives the swinging rod 401 to rotate, the swinging rod 401 rotates with the arc-shaped guide plate as the axis, so that the swinging rod 401 pushes the dividing plate 402 to rotate counterclockwise by a certain angle. After the swinging rod 401 rotates one circle, the swinging rod 401 is engaged in the corresponding groove 4021 again. At this time, the dividing plate 402 drives the toothless gear 404 on the second rotating shaft 403 to complete the rotation of the same angle, so that the toothless gear 404 pushes the first rack 405 at the bottom of the conveying plate 101 forward, so that the shell on the conveying plate 101 is displaced in the horizontal direction, and at the same time, the knocking hammer 302 knocks the displaced shell again.

[0027] In this embodiment, Figure 1 and Fig.15 As shown, the reset assembly 5 includes: a guide rod 501 symmetrically fixedly mounted on one end of the conveying plate 101; a positioning block 502 movably mounted on the guide rod 501, and one end of the positioning block 502 is fixedly mounted on the side wall of the adjacent conveyor belt 2; and a reset spring 503 mounted on the guide rod 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.

[0028] When the toothed portion of the toothless gear 404 rotates to below the first rack 405, the toothless gear 404 is disengaged from the first rack 405, and the swing lever 401 is engaged in the corresponding groove 4021 to limit the rotation of the second shaft 403. At the same time, the gear 706 is disengaged from the second rack 707 by moving into position and being squeezed by the trapezoidal stopper 7072. At this time, the return spring 503 is elastically restored after being stressed, pushing the guide rod 501 to move and reset, so that the guide rod 501 drives the conveying plate 101 to move to the initial position, which is convenient for the next test of the computer host housing.

[0029] In this embodiment, Figure 1 and Fig.15 As shown, the lifting assembly 7 includes: a second bracket 701 fixedly mounted on the bottom of the conveying plate 101; a third bearing 702 rotatably mounted on the second bracket 701 in the horizontal direction, it should be noted that the third bearing 702 is rotatably mounted on the second bracket 701 through the bearing; a turntable 703 fixedly mounted on the third bearing 702; a plurality of push rods 7031 fixedly mounted on the turntable 703 at equal intervals along the circumference, it should be added that one end of the push rod 7031 is set as an inclined surface that matches 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 stopper 704 rotatably mounted on one side of the bottom of the second bracket 701, and the bottom of one end of the stopper 704 is placed on the bottom of the adjacent trapezoidal block 601, it should be added that the lower end of the stopper 704 A stop bar is provided on the side to limit the lower end of the limiter 704 from turning in the direction of the lifting rod 6, and a connecting rod is fixed to one side of the upper end of the limiter 704. The bottom of one end of the limiter 704 is set as a trapezoidal surface that matches the trapezoidal block 601. When the trapezoidal block 601 moves up, the trapezoidal surface of the trapezoidal block 601 is pressed on the trapezoidal surface at the bottom of the limiter 704, which will cause the lower end of the limiter 704 to turn away from the trapezoidal block 601 by a small distance, so that the trapezoidal block 601 is released 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 limiter 704 drives the limiter 704 to flip and reset, so that the corresponding trapezoidal block 601 is again placed on the limiter 704 to limit the downward movement of the lifting rod 6; a lever 705 fixedly mounted on the third bearing 702; a gear 706 movably mounted 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 mounted on the bottom of the test bench 1.

[0030] When the turntable 703 rotates one circle, the lever 705 on the third bearing 702 will push the connecting rod on one side of the upper end of the limit member 704, so that the lower end of the limit member 704 flips away from the trapezoidal block 601, and the push rod 7031 no longer contacts the trapezoidal block 601, so that the lifting plate 102 drives the shell to descend under its own gravity.

[0031] In this embodiment, Figure 1 and Fig.15 As shown, a slide groove is provided at one end of the third bearing 702, and a slider matching the slide groove on the surface of the third bearing 702 is fixedly connected to the inner wall of the gear 706, and a telescopic spring 7061 is mounted 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, and the other end of the telescopic spring 7061 is fixedly connected to the surface of one end of the third bearing 702.

[0032] In this embodiment, Figure 1 and Fig.15 As shown, a baffle 7071 is fixedly connected to the side of the second rack 707 away from the gear 706, a trapezoidal stopper 7072 is provided at one end of the second rack 707, and the top of the trapezoidal stopper 7072 is fixedly installed on the bottom of the test bench 1, and the trapezoidal stopper 7072 cooperates with one side of the adjacent gear 706.

[0033] When the conveying plate 101 drives the gear 706 to move to the extreme position, one side of the gear 706 is squeezed by the inclined surface of the trapezoidal stopper 7072, causing the gear 706 to move closer to the baffle 7071. At this time, the gear 706 is disengaged from the second rack 707. At the same time, the toothed portion of the toothed gear 404 rotates to below the first rack 405, and the toothed gear 404 is no longer engaged with the first rack 405. The return spring 503 is elastically reset, so that the conveying plate 101 is quickly pulled to reset, which is convenient for the next use. After the conveying plate 101 completes the reset, the telescopic spring 7061 elastically resets and pushes the gear 706 to mesh 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 contact side of the gear 706 and the baffle 7071, so as to reduce the friction between the two and reduce wear.

[0034] In this embodiment, Figure 1 and Fig.15 As shown, a damping slide rail 602 is symmetrically fixedly installed at the bottom of the conveying plate 101 , and the telescopic end of the damping slide rail 602 is fixedly installed at the bottom of the lifting plate 102 .

[0035] When the lifting plate 102 is descending, the damping rail 602 can be provided to mitigate the impact generated when the lifting plate 102 is descending, thereby improving stability.

[0036] The use method and advantages of the present invention: The computer host shell strength testing device has the following working process: like Figure 1 and Fig.15 As shown, when the computer mainframe shell that needs to be tested for strength is transported from the conveyor belt 2 to the surface of the lifting plate 102, the motor 306 is started, and 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, so that the knocking hammer 302 is deflected, and the telescopic sleeve 303 is squeezed and contracted by force. When the knocking hammer 302 is released from squeezing, the spring 304 on the telescopic sleeve 303 is elastically reset, pushing the hinged knocking hammer 302 to reset and hit a corner position above the computer mainframe shell to perform an impact test; When the first rotating shaft 307 rotates, the first rotating shaft 307 drives the swinging rod 401 to rotate. The swinging rod 401 rotates with the arc-shaped guide plate as the axis, so that the swinging rod 401 pushes the indexing plate 402 to rotate counterclockwise by a certain angle. After the swinging rod 401 rotates one circle, the swinging rod 401 is again engaged in the corresponding groove 4021. At this time, the indexing plate 402 drives the toothless gear 404 on the second rotating shaft 403 to complete the rotation of the same angle, so that the toothless gear 404 pushes the first rack 405 at the bottom of the conveying plate 101 forward, so that the shell on the conveying plate 101 is displaced in the horizontal position, and the knocking hammer 302 knocks the displaced shell again. At the same time, when the conveying plate 101 moves horizontally, the gear 706 on the second bracket 701 at the bottom of the conveying plate 101 meshes with the second rack 707, so that the gear 706 drives 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 in the vertical direction. Through the intermittent advancement and elevation of the shell, the strength test of the different positions on both sides of the shell can be simulated at the same time, which simulates the human foot kicking to different positions of the shell multiple times, thereby increasing the test range; When the conveying plate 101 drives the gear 706 to move to the limit position, one side of the gear 706 is squeezed by the inclined surface of the trapezoidal stopper 7072, so that the gear 706 moves closer to the baffle 7071. At this time, the gear 706 is out of mesh with the second rack 707. At the same time, the toothed portion of the toothed gear 404 rotates to below the first rack 405. The toothed gear 404 is no longer in mesh with the first rack 405, and is reset by the elasticity of the reset spring 503, thereby quickly pulling the conveying plate 101 to reset for the next use. In addition, by unscrewing the adjusting bolt 3081 from the arc groove 3091 and rotating the cam 309, the inclination angle of the cam 309 on the rotating disk 308 is changed. At this time, the adjusting bolt 3081 is installed on the arc groove 3091 to fix the cam 309. At this time, when the rotating disk 308 rotates, the angle at which the cam 309 extends out of the rotating disk 308 changes, so that the cam 309 is squeezed on the squeezing block 305, so that the squeezing block 305 drives the knocking hammer 302 to change its deflection angle. When the knocking hammer 302 deflects at different angles, the force with which the knocking hammer 302 hits the side wall of the shell changes, so as to change the impact force of the knocking hammer 302 according to the test requirements.

[0037] The above shows and describes the basic principles, main features and advantages of the present invention. Technical personnel in this industry should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions 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 may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A computer host housing strength testing device, comprising: A test bench (1) and two conveyor belts (2), wherein the two conveyor belts (2) are symmetrically arranged at two ends of the test bench (1); It is characterized by further comprising: A knocking mechanism (3) for performing knocking detection on a computer host housing, wherein the knocking mechanism (3) is provided in two groups, the two groups of the knocking mechanisms (3) are symmetrically arranged on both sides of the test bench (1), a conveying plate (101) is slidably mounted in the middle of the test bench (1), and a lifting rod (6) is symmetrically slidably mounted on the conveying plate (101) in a vertical direction, a plurality of trapezoidal blocks (601) are fixedly mounted at equal intervals on the side walls of the lifting rod (6), a lifting plate (102) is fixedly mounted between the tops of the two lifting rods (6), and a lifting assembly (7) is arranged between the bottom of the conveying plate (101) and the bottom of the test bench (1) for pushing the lifting plate (102) to intermittently rise; The knocking mechanism (3) comprises: a first bracket (301) fixedly mounted on one side of the bottom of the test bench (1); a knocking hammer (302) hingedly mounted on one side of the lower end of the first bracket (301); a telescopic sleeve (303) hingedly mounted on the lower end of the knocking hammer (302), and one end of the telescopic sleeve (303) is hingedly mounted on the bottom of the first bracket (301); a spring (304) sleeved on the telescopic sleeve (303); an extrusion block (305) fixedly mounted on the knocking hammer (302); a motor (306) fixedly mounted on the first bracket (301), and the output end of the motor (306) is fixedly connected to a first rotating shaft (307); a rotating disk (308) fixedly mounted on the surface of the first rotating shaft (307), and a cam (309) is adjustably mounted 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.

2. A computer host housing strength testing device according to claim 1, characterized in that: One end of the cam (309) is rotatably mounted on the surface of the rotating disk (308) via a pin shaft, an arc-shaped groove (3091) is provided 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. A computer host housing strength testing device according to claim 1, characterized in that: The conveying mechanism (4) comprises: a swinging rod (401) fixedly mounted at the end of the first rotating shaft (307); a dividing plate (402) meshing with the swinging rod (401); a second rotating shaft (403) fixedly connected to the dividing plate (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 on the middle of the second rotating shaft (403); a first rack (405) meshing with the toothless gear (404), and one side of the first rack (405) is fixedly mounted on the bottom of the conveying plate (101); and a reset component (5) arranged on the conveying plate (101) to drive it to reset.

4. A computer host housing strength testing device according to claim 3, characterized in that: One side of the indexing plate (402) is provided with a plurality of grooves (4021) at equal intervals along the circumference, and one end of the swing rod (401) is engaged in an adjacent groove (4021).

5. The computer host housing strength testing device according to claim 3, characterized in that: The reset assembly (5) comprises: a guide rod (501) symmetrically fixedly mounted on one end of the conveying plate (101); a positioning block (502) movably mounted on the guide rod (501), and one end of the positioning block (502) is fixedly mounted on the side wall adjacent to the conveying belt (2); and a reset spring (503) mounted on the guide rod (501), and two 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. A computer host housing strength testing device according to claim 1, characterized in that: The lifting assembly (7) comprises: a second bracket (701) fixedly mounted on the bottom of the conveying plate (101); a third bearing (702) rotatably mounted on the second bracket (701) in a horizontal direction; a turntable (703) fixedly mounted on the third bearing (702); a plurality of push rods (7031) fixedly mounted on the turntable (703) at equal intervals along a circumference, and the push rods (7031) cooperate with adjacent trapezoidal blocks (601); a stopper (704) rotatably mounted on one side of the bottom of the second bracket (701), and the bottom of one end of the stopper (704) is placed on the bottom of the adjacent trapezoidal block (601); a lever (705) fixedly mounted on the third bearing (702); a gear (706) movably mounted on one end of the third bearing (702); and a second rack (707) meshing with the gear (706), and one side of the second rack (707) is fixedly mounted on the bottom of the test bench (1).

7. A computer host housing strength testing device according to claim 6, characterized in that: A sliding groove is provided at one end of the third bearing (702); a sliding block matching the sliding groove 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); 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).

8. The computer host housing strength testing device according to claim 6, characterized in that: A baffle (7071) is fixedly connected to a side of the second rack (707) away from the gear (706); a trapezoidal stopper (7072) is provided at one end of the second rack (707); the top of the trapezoidal stopper (7072) is fixedly mounted on the bottom of the test bench (1); the trapezoidal stopper (7072) cooperates with a side of an adjacent gear (706).

9. The computer host housing strength testing device according to claim 1, characterized in that: The bottom of the conveying plate (101) is symmetrically and fixedly mounted with a damping slide rail (602), and the telescopic end of the damping slide rail (602) is fixedly mounted on the bottom of the lifting plate (102).

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