Compression resistance testing device for display modules of handheld satellite communicators

Abstract

The invention discloses a pressure resistance detection device for a display module of a handheld satellite communicator, and specifically relates to the technical field of pressure detection. The device comprises a main body, wherein the main body comprises a display screen, a driving part comprises a guide column, a mobile platform is slidably connected to the guide column, the driving part comprises a support frame, a driving cylinder is arranged on the support frame, the lower end of the driving cylinder is fixedly connected to the upper end of the mobile platform via a pressure sensor, the pressure sensor is electrically connected to the display screen, a measuring part comprises a pressure rod, the pressure rod is slidably connected to the mobile platform, the measuring part comprises a contact gas storage part, the upper end of the contact gas storage part is fixedly connected to the mobile platform, the lower end of the contact gas storage part is connected to a buffer gas storage part, the lower end of the pressure rod is wrapped by the buffer gas storage part, and an adjusting part comprises a base fixedly connected to the main body, a lifting block is arranged in the base, and a display module clamp is hinged on the upper end of the lifting block via a ball hinge rod. The invention can simulate actual use conditions to perform pressure testing on the display module from point to surface, thereby improving detection accuracy.

Description

Technical Field

[0001] The present invention relates to the technical field of pressure resistance detection, and more specifically, to a pressure resistance detection device for a display module of a handheld satellite communicator. Background Art

[0002] A handheld satellite communicator is a portable communication device that supports voice calls, text message sending and data transmission through satellite networks, ensuring smooth communication even in remote areas or areas without ground base station coverage. Therefore, it is widely used in emergency rescue, outdoor adventures, offshore operations, military communications and other occasions. Due to the special usage scenarios, handheld satellite communicators and their display modules need to have certain impact resistance and durability, and compression resistance testing is required during the production process of the display module.

[0003] For example, a capacitive touch screen pressure resistance detection device is disclosed in a Chinese patent document with application number 202310921462.6, including a mounting unit; a pressure resistance test unit, the pressure resistance test unit is arranged on the mounting unit, the pressure resistance test unit includes a shell arranged in a fixed cylinder, an impact component arranged in the shell, and a pressure adjustment component arranged in the shell; and a screen fixing unit, the screen fixing unit includes a screen clamping component, a connecting component, and an angle adjustment component. The capacitive touch screen pressure resistance detection device tests the size of the screen pressure resistance through the pressure resistance test unit, and changes the screen tilt angle through the screen fixing unit to test the pressure resistance effect of the screen at different angles.

[0004] This invention can change the inclination angle of the test screen, and then measure the pressure resistance of the screen at different inclination angles. However, when testing the screen, this invention uses an impact head to perform a single-point pressure resistance test on the screen. However, when the screen is subjected to pressure or impact force during actual use, the pressure area is a process that gradually expands from point to surface, and it is not a rigid impact of a fixed area. This invention cannot measure the pressure condition of the screen when the pressure action area of ​​the screen changes from small to large, and when the screen is impacted, the impacted object will vibrate due to deformation, and the vibration of the object will affect the pressure resistance of the screen. The pressure resistance detection of this invention has certain limitations. Summary of the invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a pressure resistance detection device for a display module of a handheld satellite communicator to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: comprising a main body, the main body comprising a display screen for displaying sensor data, and further comprising:

[0007] A driving unit, the driving unit comprising a guide column, a movable platform being slidably connected to the guide column, the movable platform being able to vibrate when it moves downward to an extreme position, the driving unit comprising a support frame having a lower end fixedly connected to the main body, a driving cylinder being provided on the support frame, the lower end of the driving cylinder being fixedly connected to an upper end of the movable platform via a pressure sensor, and the pressure sensor being electrically connected to the display screen;

[0008] The measuring part includes a pressure rod, the pressure rod is slidably connected to the moving platform, the measuring part includes a contact gas storage part, the upper end of the contact gas storage part is fixedly connected to the moving platform, the lower end of the contact gas storage part is connected to a buffer gas storage part, the lower end of the pressure rod is wrapped by the buffer gas storage part, when the pressure rod contacts the display module and reaches a preset pressure, the pressure rod can be separated from the display module, and the contact gas storage part starts to contact the display module;

[0009] The adjusting part comprises a base fixedly connected to the main body, a lifting block capable of moving up and down is arranged in the base, and a display module clamp is hingedly connected to the upper end of the lifting block via a ball hinge rod.

[0010] Preferably, there are two guide columns, which are symmetrically arranged, each of which is provided with a connecting block, and the movable platform is provided with two sliding grooves which are connected to the outside and arranged in the up and down directions, and the connecting block is slidably connected to the corresponding sliding grooves.

[0011] Preferably, a vibration assembly is fixedly connected to the two guide columns, and the vibration assembly includes a fixed box, and a through slot extending vertically is opened on the fixed box, and the lower end of the movable platform is located in the through slot, and the lower side of the movable platform is in the shape of a truncated cone with a larger upper portion and a smaller lower portion.

[0012] Preferably, a vibration frame capable of reciprocating left and right is provided in the fixed box, and two vibration rods are fixedly connected to the inner wall of the vibration frame. The two vibration rods are symmetrically arranged left and right, and one end of each vibration rod facing the movable platform passes through the fixed box and is connected to a contact block located in the through groove.

[0013] Preferably, a motor is fixedly connected to the lower end of the fixed box in an axially arranged upward and downward manner, a rotating shaft located on the right side of the vibration frame is rotatably connected inside the fixed box, a cam is fixedly connected to the rotating shaft, a left end of the cam is in contact with the vibration frame, a lower end of the rotating shaft passes through the fixed box and is fixedly connected to the output end of the motor, and a left end of the vibration frame is connected to the inner wall of the fixed box via a plurality of first springs.

[0014] Preferably, a give-way groove is opened in the movable platform, the rear side of the give-way groove is connected to the outside world, the pressure rod is slidably connected to the give-way groove, the upper end of the pressure rod is connected to the top of the give-way groove via a return spring, a downward pressure block is slidably connected in the give-way groove, an adjustment block that can move up and down and is located above the downward pressure block is provided in the give-way groove, and the upper end of the downward pressure block is connected to the adjustment block via a downward pressure spring.

[0015] Preferably, in the pressure resistance detection device of the display module of the handheld satellite communicator, the upper side of the pressure rod is fixedly connected to a swing frame with an opening facing forward, a swing plate is rotatably connected in the swing frame, the upper end of the swing plate is connected to the side wall of the swing frame via an elastic sheet, the lower end surface of the swing plate is in contact with the lower end surface of the swing frame, a horizontal groove with an opening facing backward is provided on the lower pressure block, an extrusion block is slidably connected in the horizontal groove, the front end of the extrusion block is connected to the side wall of the horizontal groove via a second spring, the upper end of the extrusion block is an inclined surface with a lower rear side and a higher front side, and the extrusion block can contact the swing plate.

[0016] Preferably, a positioning plate arranged in the up and down directions is fixedly connected to the clearance groove, the inclined surface at the upper end of the extrusion block can contact the positioning plate, a through groove corresponding to the positioning plate is opened on the swing plate, and the movable platform is rotatably connected with a screw rod axially arranged in the up and down directions, the screw rod is threadedly connected to the adjusting block, and the rear end of the pressure rod is fixedly connected with a reset plate extending out of the clearance groove.

[0017] Preferably, a lifting slot is provided on the base, the lifting block is slidably connected to the lifting slot, a plurality of slots with openings facing forward and evenly distributed in the up and down directions are provided on the lifting block, a movable slot that passes through the up and down directions and is connected to the lifting slot is provided on the base, a limiting plate is slidably connected in the movable slot, and a plurality of blocks that can be inserted into the slots are fixedly connected to the limiting plate.

[0018] Preferably, the lifting block is provided with a brake groove with an opening facing forward, and an L-shaped brake plate is slidably connected in the brake groove. The rear end of the brake plate can contact the ball joint rod and brake the ball joint rod, and the front end of the brake plate is located in the movable groove, and the rear end of the limit plate contacts the brake plate. The front end of the limit plate is fixedly connected with a pull rod passing through the base, and the pull rod is provided with a third spring located between the limit plate and the movable groove.

[0019] Technical effects and advantages of the present invention:

[0020] 1. The present invention cooperates with the contact gas storage part, the buffer gas storage part, the pressure rod, the swing plate, the extrusion block and the pressing block. During the pressure test, the pressure rod first contacts the display module and applies pressure. During this process, the pressure area remains unchanged and the pressure gradually increases. When the pressure applied by the pressure rod increases to a preset value, the pressure rod will be quickly recovered into the clearance groove, and the contact gas storage part will contact the display module to achieve pressure diffusion from point to surface. As the pressure area of ​​the contact gas storage part gradually increases, the pressure of the driving cylinder also gradually increases, so that the pressure on the display module per unit area remains unchanged, thereby verifying the pressure effect of the display module when it is subjected to the same pressure but different areas.

[0021] 2. The present invention coordinates the fixed box, the motor, the vibration frame, the rotating shaft and the cam so that when the moving platform moves downward to the extreme position, that is, when the contact area between the contact gas storage part and the display module reaches the maximum value, the contact block will contact the moving platform, and the contact block drives the moving platform to vibrate, and the mobile platform drives the contact gas storage part to vibrate, simulating that an object that hits the display module will vibrate, and pressure is applied to the display module under the condition of vibration. In order to accurately measure the real-time pressure on the display module, the force application process of the driving cylinder is a uniform linear motion that gradually increases from small to large, simulating the force application method during impact, and detecting the display module more in line with actual usage conditions.

[0022] 3. The present invention cooperates with the use of a base, an upgrade block, a ball hinge rod, a limit plate, and a brake plate. The limit plate can drive the card block to move forward to remove the card slot, thereby limiting the lifting block. At the same time, the limit plate moves forward and no longer presses the brake plate. The brake plate no longer presses the ball hinge rod, and the limit of the ball hinge rod is released. The display module clamp is rotated to adjust the angle between the display module and the pressure rod. At the same time, the lifting block is moved up and down to realize the up and down movement of the display module clamp, thereby adjusting the initial height and force angle of the display module, and verifying the pressure effect of the display module under different pressure angles. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0024] Figure 2 It is a full-section main axonometric drawing of the present invention.

[0025] Figure 3 For the present invention Figure 2 A is an enlarged view of the middle image.

[0026] Figure 4 It is a cut-away left axonometric view of the mobile station of the present invention.

[0027] Figure 5 For the present invention Figure 4 Enlarged view of B.

[0028] Figure 6 It is a schematic structural diagram of the positioning plate, the extrusion block, the swing plate and the passing slot of the present invention.

[0029] Figure 7 It is a schematic diagram of the structure of the vibration component in the present invention.

[0030] Figure 8 It is a structural schematic diagram of the adjustment part of the present invention.

[0031] Fig. 9 It is a schematic structural diagram of the limiting plate and the lifting block of the present invention.

[0032] Fig.10 It is a schematic structural diagram of the brake plate and the ball hinge rod of the present invention.

[0033] The accompanying drawings are marked as follows: 1. main body; 3. display screen; 4. driving part; 41. guide column; 42. moving platform; 43. support frame; 44. driving cylinder; 45. pressure sensor; 46. connecting block; 47. slide groove; 5. measuring part; 51. pressure rod; 52. contact air storage part; 53. buffer air storage part; 54. clearance groove; 55. return spring; 56. pressing block; 57. adjusting block; 58. pressing spring; 59. swing frame; 510. swing plate; 511. elastic sheet; 512. transverse groove; 513. extrusion block; 514 , second spring; 515, positioning plate; 516, through slot; 517, screw; 518, reset plate; 6, adjustment part; 61, base; 62, lifting block; 63, ball hinge rod; 64, display module fixture; 65, moving slot; 66, limit plate; 67, block; 68, brake plate; 69, pull rod; 610, third spring; 7, vibration component; 71, fixing box; 72, through slot; 73, vibration frame; 74, vibration rod; 75, contact block; 76, motor; 77, rotating shaft; 78, cam; 79, first spring. DETAILED DESCRIPTION

[0034] 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 technicians in this field without creative work are within the scope of protection of the present invention.

[0035] Embodiment 1

[0036] In actual use, when the display module is hit and subjected to pressure or impact, the pressure area of ​​the display module is a process that gradually expands from point to surface, and it is not a rigid impact of a fixed area. If the impacting object and the display module are simply subjected to a rigid pressure test, there will be a difference between the compression test of the display module and the pressure in actual use, resulting in a lack of authenticity in the test results, and the force effect of the display module after being hit with different contact areas cannot be fed back.

[0037] To solve the above technical problems, please refer to Figure 1-Figure 6 , the present invention provides the following technical solutions:

[0038] A device for detecting the pressure resistance of a display module of a handheld satellite communicator comprises a main body 1, the main body 1 comprises a display screen 3 for displaying sensor data, and also comprises a driving unit 4, the driving unit 4 comprises a guide column 41, a moving platform 42 is slidably connected to the guide column 41, and the moving platform 42 can vibrate when it moves downward to an extreme position, the driving unit 4 comprises a support frame 43 whose lower end is fixedly connected to the main body 1, a driving cylinder 44 is provided on the support frame 43, the lower end of the driving cylinder 44 is fixedly connected to the upper end of the moving platform 42 via a pressure sensor 45, and the pressure sensor 45 is electrically connected to the display screen 3.

[0039] The measuring part 5 includes a pressure rod 51, which is slidably connected to the moving platform 42. The measuring part 5 includes a contact gas storage part 52, the upper end of which is fixedly connected to the moving platform 42, and the lower end of which is connected to a buffer gas storage part 53. The lower end of the pressure rod 51 is wrapped by the buffer gas storage part 53. When the pressure rod 51 contacts the display module and reaches a preset pressure, the pressure rod 51 can be separated from the display module, and the contact gas storage part 52 starts to contact the display module. The size of the preset pressure can be adjusted according to the measurement requirements.

[0040] The adjusting part 6 includes a base 61 fixedly connected to the main body 1 , a lifting block 62 capable of moving up and down is arranged in the base 61 , and a display module clamp 64 is hinged to the upper end of the lifting block 62 via a ball hinge rod 63 .

[0041] A clearance groove 54 is provided in the movable platform 42, and the rear side of the clearance groove 54 is connected to the outside world. The pressure rod 51 is slidably connected to the clearance groove 54, and the upper end of the pressure rod 51 is connected to the top of the clearance groove 54 via a return spring 55. A downward pressure block 56 is slidably connected in the clearance groove 54. An adjustment block 57 that can move up and down and is located above the downward pressure block 56 is provided in the clearance groove 54, and the upper end of the downward pressure block 56 is connected to the adjustment block 57 via a downward pressure spring 58.

[0042] A swing frame 59 with an opening facing forward is fixedly connected to the upper side of the pressure rod 51, and a swing plate 510 is rotatably connected inside the swing frame 59. The upper end of the swing plate 510 is connected to the side wall of the swing frame 59 via an elastic sheet 511, and the lower end surface of the swing plate 510 contacts the lower end surface of the swing frame 59. A transverse groove 512 with an opening facing backward is provided on the lower pressure block 56, and an extrusion block 513 is slidably connected in the transverse groove 512. The front end of the extrusion block 513 is connected to the side wall of the transverse groove 512 via a second spring 514, and the upper end of the extrusion block 513 is an inclined surface with a lower rear side and a higher front side, and the extrusion block 513 can contact the swing plate 510.

[0043] A positioning plate 515 set in the up-and-down direction is fixedly connected to the clearance groove 54, the inclined surface of the upper end of the extrusion block 513 can contact the positioning plate 515, and a through groove 516 corresponding to the positioning plate 515 is opened on the swing plate 510. A screw rod 517 set axially in the up-and-down direction is rotatably connected to the movable platform 42, and the screw rod 517 is threadedly connected to the adjustment block 57. The rear end of the pressure rod 51 is fixedly connected to a reset plate 518 extending out of the clearance groove 54.

[0044] In actual use, the area of ​​the upper end surface of the contact gas storage portion 52 is set to be larger than the area of ​​the lower end surface thereof, the force of the return spring 55 is always upward, the force of the downward pressing spring 58 is always downward, and the elastic force of the downward pressing spring 58 is greater than the elastic force of the return spring 55, and the elastic force of the second spring 514 is greater than the elastic force of the elastic sheet 511. When the driving cylinder 44 is pushed downward, the pressure generated by it gradually increases with the increase of displacement, that is, the pressure of the driving cylinder 44 is linearly related to the displacement. The display module is placed in the display module fixture 64, and the driving cylinder 44 is turned on. The driving cylinder 44 drives the moving platform 42 to move downward through the pressure sensor 45, and the moving platform 42 drives the pressure rod 51 to move downward, so that the pressure rod 51 drives the buffer gas storage portion 53 to contact the display module. At this time The pressure sensor 45 can measure the pressure on the display module when the lower end of the pressure rod 51 contacts the display module and display it on the display screen 3. As the moving platform 42 moves downward, the pressure rod 51 moves upward relative to the moving platform 42. The pressure rod 51 drives the swing frame 59 to move upward relative to the moving platform 42. The swing frame 59 drives the swing plate 510 to move upward. The swing plate 510 pushes the extrusion block 513 to move upward. The extrusion block 513 drives the downward pressing block 56 to move upward. The downward pressing block 56 compresses the downward pressing spring 58. As the moving platform 42 gradually moves downward, the pressure generated by the driving cylinder 44 gradually increases, and the displacement of the pressure rod 51 relative to the moving platform 42 gradually increases. When the extrusion block 513 moves upward to the contact position with the positioning plate 515, the pressure sensor 45 can detect the pressure on the display module when the lower end of the pressure rod 51 contacts the display module and displays it on the display screen 3. When the pressing plate 515 is in the state of being moved forward, the positioning plate 515 pushes the inclined surface of the extrusion block 513, so that the extrusion block 513 moves forward and compresses the second spring 514. When the extrusion block 513 moves forward to the limit position, the extrusion block 513 is retracted forward into the transverse groove 512, and the extrusion block 513 no longer blocks the swing plate 510. At this time, the pressure rod 51 moves upward rapidly relative to the yielding groove 54 under the action of the return spring 55. The pressure rod 51 is now out of contact with the display module. At the same time, the pressing block 56 moves downward to the limit position in the yielding groove 54 under the action of the pressing spring 58. At this time, the pressure of the pressure rod 51 on the display module reaches the set value. When the pressure rod 51 is out of contact with the display module, the buffer gas storage part 53 begins to contact with the display module. As the moving platform 42 moves downward The moving platform 42 drives the contact air storage part 52 to move downward. At the moment when the contact air storage part 52 drives the buffer air storage part 53 to contact the display module, the pressure rod 51 has been retracted upward into the clearance groove 54. As the contact air storage part 52 is gradually pressed downward, the pressure area of ​​the contact air storage part 52 on the display module gradually increases under the push of the moving platform 42. As the pressure area of ​​the contact air storage part 52 on the display module increases, the displacement of the moving platform 42 and the driving cylinder 44 gradually increases, so that the pressure generated by the driving cylinder 44 gradually increases. However, due to the gradual increase in the area of ​​the contact air storage part 52, the pressure on the display module per unit area remains unchanged, which can simulate the impact on the display module caused by the pressure area spreading from small to large during a real collision.The pressure on the display module from point to surface is more in line with actual use than the pressure on a single point, thus obtaining a more realistic maximum breaking pressure.

[0045] During the upward recovery of the pressure rod 51, the pressure rod 51 drives the swing plate 510 to move upward through the swing frame 59. During the upward movement of the swing plate 510, the through slot 516 on the swing plate 510 corresponds to the positioning plate 515, and the positioning plate 515 can pass through the through slot 516, and the positioning plate 515 will not interfere with the swing plate 510. When one detection is completed, the driving cylinder 44 is restored to the initial position upward. At this time, the pressure rod 51 moves upward to the limit position, and the lower pressing block 56 moves downward to the limit position. In order to reset the pressure rod 51 for the next use, the reset plate 518 is pushed downward, and the reset plate 518 drives the pressure rod 51 to move downward and stretch The return spring 55 and the pressure rod 51 drive the swing frame 59 to move downward, and the swing frame 59 drives the swing plate 510 to move downward. During the process of the swing plate 510 moving downward to the limit position, after the swing plate 510 contacts the extrusion block 513, as the swing plate 510 moves downward, the extrusion block 513 pushes the swing plate 510 to swing upward and compresses the elastic sheet 511. When the swing plate 510 moves downward to the limit position, the swing plate 510 is out of contact with the extrusion block 513, and the swing plate 510 swings downward to the limit position under the action of the elastic sheet 511. At this time, the swing plate 510 is located below the extrusion block 513 and contacts the lower end surface of the extrusion block 513, and the reset is completed.

[0046] When the screw 517 is rotated, the screw 517 can drive the adjusting block 57 to move up and down. When the adjusting block 57 moves upward, the adjusting block 57 pulls the pressing spring 58 to move upward, so that the initial length of the pressing spring 58 is increased. When the pressing block 56 moves upward to the same position, the downward pressure generated by the pressing spring 58 is less than before adjustment, that is, when the pressure rod 51 reaches the preset pressure, it will be quickly retracted, that is, the pressure rod 51 reaches the preset pressure value and decreases. Similarly, when the adjusting block 57 moves downward, the adjusting block 57 pulls the pressing spring 58 to move downward, so that the initial length of the pressing spring 58 is reduced. When the pressing block 56 moves upward to the same position, the downward pressure generated by the pressing spring 58 is greater than before adjustment, that is, when the pressure rod 51 reaches the preset pressure, it will be quickly retracted, that is, the pressure rod 51 reaches the preset pressure value and decreases. By rotating the screw 517 to change the position of the adjusting block 57, the maximum pressure value of the pressure rod 51 when pressing down can be changed.

[0047] Embodiment 2

[0048] On the basis of the above embodiments, in actual use, when the display module is subjected to pressure, the object hitting the display module will undergo elastic deformation to generate vibration. The object hitting the display module exerts pressure on the display module under the condition of vibration. During the detection process, the driving device simulating the impact of the object is the driving cylinder 44. The driving cylinder 44 drives the pressure rod or the contact air storage part downward at a uniform speed to contact the display module. Due to the uniform speed contact, it is impossible to simulate the situation where the display module is vibrated and pressed by the impact object after being hit, so that the detection data lacks authenticity.

[0049] See also Figure 2 and Figure 7 There are two guide posts 41, which are symmetrically arranged. Each guide post 41 is provided with a connecting block 46. The moving platform 42 is provided with two slide grooves 47 which are connected to the outside and arranged in the up and down directions. The connecting block 46 is slidably connected with its corresponding slide groove 47.

[0050] The two guide posts 41 are fixedly connected with a vibration assembly 7, which includes a fixed box 71. The fixed box 71 is provided with a through slot 72 which passes through the fixed box 71 from top to bottom. The lower end of the moving platform 42 is located in the through slot 72. The lower side of the moving platform 42 is in the shape of a truncated cone with a larger upper part and a smaller lower part.

[0051] A vibration frame 73 capable of reciprocating left and right is provided in the fixed box 71, and two vibration rods 74 are fixedly connected to the inner wall of the vibration frame 73. The two vibration rods 74 are symmetrically arranged left and right. One end of each vibration rod 74 facing the movable platform 42 passes through the fixed box 71 and is connected to a contact block 75 located in the through groove 72.

[0052] The lower end of the fixed box 71 is fixedly connected to a motor 76 axially arranged in an upper and lower direction. The fixed box 71 is internally rotatably connected to a rotating shaft 77 located on the right side of the vibration frame 73. A cam 78 is fixedly connected to the rotating shaft 77. The left end of the cam 78 is in contact with the vibration frame 73. The lower end of the rotating shaft 77 passes through the fixed box 71 and is fixedly connected to the output end of the motor 76. The left end of the vibration frame 73 is connected to the inner wall of the fixed box 71 via a plurality of first springs 79.

[0053] In actual use, on the basis of the above-mentioned embodiment 1, the moving platform 42 continues to move downward, and the moving platform 42 drives the contact gas storage part 52 to move downward. As the contact gas storage part 52 is squeezed, the contact area between the contact gas storage part 52 and the display module gradually increases. When the contact area between the contact gas storage part 52 and the display module increases to the limit position, the driving cylinder 44 stops moving downward. At this time, the moving platform 42 moves downward to the limit position. Since the lower side of the moving platform 42 is a frustum shape with a larger upper part and a smaller lower part, when the moving platform 42 moves downward to the limit position, the side wall of the lower side of the moving platform 42 can contact the contact block 75, and the motor 76 is turned on, and the motor 76 drives the rotating shaft 77 The rotating shaft 77 drives the cam 78 to rotate. When the cam 78 rotates, it pushes the vibration frame 73 to move to the left. The vibration frame 73 moves to the left and compresses multiple first springs 79. As the cam 78 rotates, when the small diameter of the cam 78 contacts the vibration frame 73, the vibration frame 73 moves to the right under the action of the first springs 79. As the motor 76 drives the rotating shaft 77 and the cam 78 to rotate, the vibration frame 73 drives the vibration block to vibrate left and right through the vibration rod 74. At this time, the two contact blocks 75 can contact the side wall of the moving platform 42. As the contact block 75 drives the moving platform 42 to vibrate left and right, the moving platform 42 drives the contact gas storage part 52 to vibrate, simulating the pressure condition of the display module during vibration.

[0054] Embodiment 3

[0055] On the basis of the above-mentioned embodiment, when the display module is pressure tested, the direction of pressure application cannot always be perpendicular to the display module. The direction of pressure will affect the pressure test of the display module. Even under the same pressure, the display module will suffer different wear and tear when subjected to pressure in different directions. A single pressure perpendicular to the display module is too one-sided and cannot reflect the force effect of the display module under different pressure directions. The detection results are not comprehensive.

[0056] See also Figure 8-Figure 10 A lifting groove is provided on the base 61, and a lifting block 62 is slidably connected to the lifting groove. A plurality of card slots with openings facing forward and evenly distributed in the up-and-down directions are provided on the lifting block 62. A moving groove 65 that passes through the up-and-down directions and is connected to the lifting groove is provided on the base 61. A limit plate 66 is slidably connected in the moving groove 65, and a plurality of card blocks 67 that can be inserted into the card slots are fixedly connected to the limit plate 66.

[0057] The lifting block 62 is provided with a brake groove with its opening facing forward, in which an L-shaped brake plate 68 is slidably connected, and the rear end of the brake plate 68 can contact with the ball joint rod 63 and brake the ball joint rod 63, and the front end of the brake plate 68 is located in the movable groove 65, and the rear end of the limit plate 66 contacts with the brake plate 68, and the front end of the limit plate 66 is fixedly connected with a pull rod 69 which passes through the base 61, and the pull rod 69 is provided with a third spring 610 located between the limit plate 66 and the movable groove 65.

[0058] When it is necessary to adjust the pressure angle of the display module, pull the pull rod 69 forward and stretch the third spring 610, the pull rod 69 drives the limit plate 66 forward, the limit plate 66 drives the card block 67 forward to remove the card slot to release the limit on the lifting block 62, and at the same time, the limit plate 66 moves forward and no longer presses the brake plate 68, the brake plate 68 no longer presses the ball joint rod 63, the limit of the ball joint rod 63 is released, and the display module clamp is rotated to adjust the angle between the display module and the pressure rod 51. At the same time, moving the lifting block 62 up and down can realize the up and down movement of the display module clamp and adjust the initial height and force angle of the display module.

[0059] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A device for detecting the pressure resistance of a display module of a handheld satellite communicator, comprising a main body (1), wherein the main body (1) comprises a display screen (3) for displaying sensor data, characterized in that: Also includes: A driving part (4), wherein the driving part (4) comprises a guide column (41), wherein a moving platform (42) is slidably connected to the guide column (41), wherein the guide column (41) is two, wherein the two guide columns (41) are symmetrically arranged, wherein each guide column (41) is provided with a connecting block (46), wherein the moving platform (42) is provided with two sliding grooves (47) which are connected to the outside and arranged in the up-down direction, wherein the connecting block (46) is slidably connected to the corresponding sliding grooves (47), wherein the two guide columns (41) are fixedly connected with a vibration assembly (7), wherein the vibration assembly (7) comprises a fixing box (71), wherein the fixing box (71) is provided with a through groove (72) which passes through the fixing box (71) from top to bottom, wherein the lower end of the moving platform (42) is located in the through groove (72), and wherein the moving platform (42) is provided with a connecting block (46). ) has a truncated cone shape with a larger top and a smaller bottom, a vibration frame (73) capable of reciprocating left and right is provided in the fixed box (71), two vibration rods (74) are fixedly connected to the inner wall of the vibration frame (73), the two vibration rods (74) are symmetrically arranged left and right, and one end of each vibration rod (74) facing the movable platform (42) passes through the fixed box (71) and is connected to a contact block (75) located in the through groove (72), the driving part (4) comprises a support frame (43) whose lower end is fixedly connected to the main body (1), a driving cylinder (44) is provided on the support frame (43), the lower end of the driving cylinder (44) is fixedly connected to the upper end of the movable platform (42) via a pressure sensor (45), and the pressure sensor (45) is electrically connected to the display screen (3); A measuring part (5), the measuring part (5) comprising a pressure rod (51), the pressure rod (51) being slidably connected to the moving platform (42), the measuring part (5) comprising a contact gas storage part (52), the upper end of the contact gas storage part (52) being fixedly connected to the moving platform (42), the lower end of the contact gas storage part (52) being connected to a buffer gas storage part (53), the lower end of the pressure rod (51) being wrapped by the buffer gas storage part (53), and when the pressure rod (51) is in contact with the display module and reaches a preset pressure, the pressure rod (51) can be disengaged from the display module, and the contact gas storage part (52) starts to contact with the display module; An adjusting portion (6), the adjusting portion (6) comprising a base (61) fixedly connected to the main body (1), a lifting block (62) capable of moving up and down being provided in the base (61), and a display module clamp (64) being hingedly connected to the upper end of the lifting block (62) via a ball hinge rod (63).

2. The pressure resistance detection device for the display module of a handheld satellite communicator according to claim 1, characterized in that: The lower end of the fixed box (71) is fixedly connected to a motor (76) arranged axially in an upper and lower direction. The fixed box (71) is internally rotatably connected to a rotating shaft (77) located on the right side of the vibration frame (73). A cam (78) is fixedly connected to the rotating shaft (77). The left end of the cam (78) contacts the vibration frame (73). The lower end of the rotating shaft (77) passes through the fixed box (71) and is fixedly connected to the output end of the motor (76). The left end of the vibration frame (73) is connected to the inner wall of the fixed box (71) via a plurality of first springs (79).

3. The pressure resistance detection device for the display module of a handheld satellite communicator according to claim 2, characterized in that: The movable platform (42) is provided with a clearance groove (54), the rear side of which is communicated with the outside, the pressure rod (51) is slidably connected to the clearance groove (54), the upper end of the pressure rod (51) is connected to the top of the clearance groove (54) via a return spring (55), a pressing block (56) is slidably connected to the clearance groove (54), an adjusting block (57) which can move up and down and is located above the pressing block (56) is provided in the clearance groove (54), and the upper end of the pressing block (56) is connected to the adjusting block (57) via a pressing spring (58).

4. The pressure resistance detection device for the display module of a handheld satellite communicator according to claim 3, characterized in that: A swing frame (59) with an opening facing forward is fixedly connected to the upper side of the pressure rod (51), a swing plate (510) is rotatably connected inside the swing frame (59), the upper end of the swing plate (510) is connected to the side wall of the swing frame (59) via an elastic sheet (511), the lower end surface of the swing plate (510) contacts the lower end surface of the swing frame (59), the lower pressing block (56) is provided with a transverse groove (512) with an opening facing backward, an extrusion block (513) is slidably connected inside the transverse groove (512), the front end of the extrusion block (513) is connected to the side wall of the transverse groove (512) via a second spring (514), the upper end of the extrusion block (513) is an inclined surface with a lower rear side and a higher front side, and the extrusion block (513) can contact the swing plate (510).

5. The pressure resistance detection device for the display module of the handheld satellite communicator according to claim 4, characterized in that: A positioning plate (515) arranged in the vertical direction is fixedly connected to the displacement groove (54); the inclined surface of the upper end of the extrusion block (513) is capable of contacting the positioning plate (515); a through groove (516) corresponding to the positioning plate (515) is provided on the swing plate (510); a screw rod (517) arranged in the vertical direction is rotatably connected to the movable platform (42); the screw rod (517) is threadedly connected to the adjustment block (57); and a reset plate (518) extending out of the displacement groove (54) is fixedly connected to the rear end of the pressure rod (51).

6. The pressure resistance detection device for the display module of a handheld satellite communicator according to claim 5, characterized in that: The base (61) is provided with a lifting slot, the lifting block (62) is slidably connected to the lifting slot, the lifting block (62) is provided with a plurality of slots with openings facing forward and evenly distributed in the vertical direction, the base (61) is provided with a moving slot (65) which passes through the vertical direction and is connected to the lifting slot, a limiting plate (66) is slidably connected in the moving slot (65), and a plurality of blocks (67) capable of being inserted into the slots are fixedly connected to the limiting plate (66).

7. The pressure resistance detection device for the display module of the handheld satellite communicator according to claim 6, characterized in that: The lifting block (62) is provided with a brake groove with an opening facing forward, and an L-shaped brake plate (68) is slidably connected in the brake groove. The rear end of the brake plate (68) can contact the ball hinge rod (63) and brake the ball hinge rod (63). The front end of the brake plate (68) is located in the movable groove (65), and the rear end of the limit plate (66) is in contact with the brake plate (68). The front end of the limit plate (66) is fixedly connected to a pull rod (69) that passes through the base (61), and the pull rod (69) is provided with a third spring (610) located between the limit plate (66) and the movable groove (65).

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