CN117233988B - Low-temperature environment anti-vibration testing device for liquid crystal display - Google Patents
Low-temperature environment anti-vibration testing device for liquid crystal display Download PDFInfo
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- CN117233988B CN117233988B CN202311052978.8A CN202311052978A CN117233988B CN 117233988 B CN117233988 B CN 117233988B CN 202311052978 A CN202311052978 A CN 202311052978A CN 117233988 B CN117233988 B CN 117233988B
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 20
- 238000012360 testing method Methods 0.000 title claims abstract description 17
- 230000007246 mechanism Effects 0.000 claims abstract description 27
- 230000008093 supporting effect Effects 0.000 claims description 4
- 230000035939 shock Effects 0.000 claims 1
- 238000000034 method Methods 0.000 description 5
- 239000000758 substrate Substances 0.000 description 4
- 239000011324 bead Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 229920001821 foam rubber Polymers 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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Abstract
The invention relates to the technical field of display testing equipment, and discloses a liquid crystal display low-temperature environment anti-vibration testing device which comprises a base, a clamping mechanism, a linkage mechanism and a shell component, wherein the base comprises a base plate and a base, the base is fixedly arranged on the upper surface of the base plate, two assembly clamping mechanisms are symmetrically arranged on the base, the two assembly clamping mechanisms are used for fixing a display, the linkage mechanism comprises a valve plate and a guide part, two valve plates are rotatably arranged in a box body, the valve plate seals an air outlet of an air inlet pipe, the guide part is slidably arranged on a box cover, the valve plate pushes the guide part to move, the other end of the guide part is in contact with the clamping part, the shell component comprises a first shell and a second shell, and the first shell and the second shell are slidably arranged on the base plate. According to the invention, the first rod body is pushed to move upwards by the air inlet, the second rod body is pushed to move downwards by the first rod body which moves upwards by the connecting rod, and the upper clamping plate and the lower clamping plate of the clamping display are driven to move downwards integrally, so that vibration is realized.
Description
Technical Field
The invention relates to the technical field of display test equipment, in particular to a low-temperature environment anti-vibration test device for a liquid crystal display.
Background
Liquid Crystal Displays (LCDs) are one type of display for digital watches and many portable computers. LCD displays use two sheets of polarizing material with a liquid crystal solution in between. When an electric current is passed through the liquid, the crystals rearrange so that light cannot pass through them. Thus, each crystal acts like a shutter, allowing light to pass through it and blocking it. Liquid Crystal Displays (LCDs) are currently being developed towards light, thin, short, small targets, and display products with a long history around the computer are certainly no exception. On the premise of convenient carrying and transporting, conventional display modes such as CRT image tube display and LED display panel are subject to factors such as excessive volume or huge power consumption, and cannot meet the actual demands of users. The development of the liquid crystal display technology exactly meets the trend of the current information products, and the liquid crystal display device has the advantages of right-angle display, low power consumption, small volume, zero radiation and the like, so that a user can enjoy the optimal visual environment.
Disclosure of Invention
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to a liquid crystal display low-temperature environment anti-vibration testing device, which comprises:
The base comprises a base plate and a base, and the base is fixedly arranged on the upper surface of the base plate;
The base comprises a box body and a box cover, the box cover is mounted on an opening of the box body in a matched mode, a rectangular groove is formed in the middle of the box cover, and two ends of the box body are communicated with air inlet pipes;
The clamping mechanism is symmetrically provided with two assembly clamping mechanisms on the base, and the two assembly clamping mechanisms are used for fixing the display;
the clamping mechanism comprises a sliding seat, a vertical frame and clamping parts, wherein the sliding seat is sleeved on the box body, the vertical frame is fixedly arranged on the sliding seat, and two groups of clamping parts are slidably arranged on the vertical frame;
the linkage mechanism comprises valve plates and guide parts, two valve plates are rotatably arranged in the box body, the valve plates seal the air outlet of the air inlet pipe, the guide parts are slidably arranged on the box cover, the valve plates push the guide parts to move, and the other ends of the guide parts are in contact with the clamping parts;
The shell assembly comprises a first shell and a second shell, the first shell and the second shell are both slidably mounted on a substrate, and the substrate, the first shell and the second shell form a closed cavity;
The clamping mechanism and the linkage mechanism are positioned in the cavity.
Further, the step faces are arranged on two opposite side faces of the box body, the rectangular strips are arranged on two opposite sides of the box body, the rectangular strips are located on one side of the step faces, an opening of the box body is sealed through the box cover, rectangular grooves and guide holes penetrate through the box cover, two groups of guide holes are arranged on two sides of the rectangular grooves, the sliding seat is of an inverted U-shaped structure, convex faces are arranged on two opposite inner side faces of the sliding seat, the sliding seat is clamped on the outer side of the box body, the sliding seat and the guide holes are distributed correspondingly, and meanwhile the convex faces are mounted between the step faces and the rectangular strips in a matched mode.
Further, the upper and lower both ends of grudging post are connected with roof and bottom plate respectively, all run through on roof and the bottom plate have the pinhole, two install the stand between the pinhole, run through on the vertical side of grudging post has the elongated slot, clamping part includes clamping assembly and lower clamping assembly, it includes punch holder and first spring to go up clamping assembly, punch holder and first spring all cup joint on the stand, first spring is located between punch holder and the roof, the one end of punch holder passes the directional another grudging post of elongated slot, clamping assembly includes lower plate and second spring down, lower plate and second spring all cup joint on the stand, the second spring is located between lower plate and the bottom plate, the one end of lower plate passes the directional another grudging post of elongated slot, all install the foam-rubber cushion on the both sides face that punch holder and lower plate are close to each other.
Further, a group of round holes are formed in the bottom plate, the round holes are in one-to-one correspondence with the guide holes, pin shafts are installed in the box body, the end portions of the pin shafts sequentially penetrate through the side walls of the box body and the side walls of the sliding seat and extend to the outside of the sliding seat, one end of the valve plate is sleeved on the pin shafts, the valve plate and the pin shafts synchronously rotate, a hinging seat is arranged between the two round holes, a connecting rod is rotatably installed on the hinging seat, the connecting rod and the pin shafts are mutually perpendicular, through grooves are formed in two ends of the connecting rod, a first rod body and a second rod body are respectively connected to two ends of the connecting rod, a pin rod installed on the first rod body and a pin rod installed on the second rod body are located in the corresponding through grooves, one end of the first rod body penetrates through the long groove and the guide holes to be in contact with the surfaces of the valve plate, one end of the second rod body penetrates through the inside the box body and the guide holes to slide along a channel formed by the long groove and the guide holes, the other end of the second rod body penetrates through the light holes formed in the lower clamping plate, the position-adjustable plate is installed on the second rod body, and the nut is located on the lower clamping plate and the upper side of the nut.
Further, a boss is arranged on the upper surface of the substrate, grooves are formed in two opposite side faces of the boss, two sets of stand seats are mounted on the substrate, and one set of stand seats is mounted in a matched mode with the first shell or the second shell.
Further, the vertical opening outside of first casing is equipped with first edge body, the mounting groove has all been seted up in two relative outsides of first edge body, install the knot body on the mounting groove, first casing cup joints in the outside of boss, be equipped with on two relative medial surfaces of first casing with recess complex bead, two relative lateral surfaces bottoms of second casing all are equipped with two first lugs, install the slide bar between two first lugs of relative distribution, cup jointed the third spring on the slide bar, be located the outside of corresponding riser between two first lugs of relative distribution, the slide bar passes corresponding riser.
Further, the vertical opening terminal surface of second casing extends there is the second along the body, the second is along the body cooperation and installs in the vertical opening of first casing, the joint groove has all been seted up on two opposite lateral surfaces of second casing, the knot body is installed with the joint groove cooperation, the second casing cup joints in the outside of boss, is equipped with on two opposite medial surfaces of second casing with recess complex bead, two opposite lateral surfaces bottoms of second casing all are equipped with two second lugs, installs the slide bar between two second lugs of relative distribution, cup jointed the third spring on the slide bar, be located the outside of corresponding upright between two second lugs of relative distribution, the slide bar passes corresponding upright.
Further, rectangular blocks are mounted on the inner sides of the first shell and the second shell, a groove body is formed in the end portion of the pin shaft, the cross section of the groove body is of a semicircular structure, meanwhile, the groove body is located at the bottom of the pin shaft, pin rods are mounted on two opposite outer side faces of the sliding seat, limiting rods are rotatably mounted on the pin rods, the pin rods are connected with the limiting rods through torsion springs, the torsion springs push the plane of the upper ends of the limiting rods to be attached to the surface of the groove body, and the rectangular blocks close to the limiting rods push the lower ends of the limiting rods to rotate upwards.
Further, the corner of the base plate is outwards extended to form an extension block, and the bottom surface of the extension block is provided with supporting feet.
The invention has the following beneficial effects:
According to the invention, the nut is contacted with the upper side surface of the lower clamping plate through rotating the nut, the second rod body is connected with the first rod body through the 16 limiting rod, meanwhile, the second rod body is rotatably arranged on the hinging seat, the bottom end of the first rod body pushes the valve plate to rotate around the pin shaft, the air outlet of the air inlet pipe is closed, in the air inlet pipe air inlet process, the air pressure of the air outlet end of the air inlet pipe is increased, the air pressure pushing force of the air pressure pushing the valve plate is larger than the force of the air pressure pushing the valve plate, the air pressure pushing the valve plate pushes the valve plate to rotate, the first rod body which moves upwards pushes the second rod body to move downwards through the rotating valve plate, the upper clamping plate and the lower clamping plate of the clamping display are driven to integrally move downwards through the connecting rod, so that the second spring is compressed, the pressure of the air outlet end of the air inlet pipe is reduced after air exhaust, the second spring is reset, the upper clamping plate and the lower clamping plate of the display are driven to move upwards, vibration of the clamping is realized through periodical second spring reset, and in addition, the entering air is used for providing a low-temperature environment for detection.
According to the invention, the end part of the buckle body is separated from the clamping groove by pressing one end of the buckle body far away from the clamping groove, the first shell and the second shell are pushed to be far away from each other under the left and right sides of the two groups of installed third springs, so that the shell assembly is opened, when the first shell and the second shell which are far away from each other are closed, the first shell and the second shell which are pushed to be installed are close to each other, the springs between the opposite seat and the second convex block and between the vertical seat and the first convex block are compressed until the opening of the first shell is attached to the opening of the second shell, the end part of the buckle body is matched and installed in the clamping groove, and the opening and the closing of the shell assembly are facilitated.
According to the invention, when the first shell and the second shell are completely opened, the rectangular block is separated from the lower end of the limiting rod, and the upper end of the limiting rod is pushed by the mounted torsion spring to be in plane contact with the groove body, so that the axial one side of the pin is prevented from rotating, and after the first shell and the second shell are opened, the air outlet end of the air inlet pipe is closed, and the waste of cold air is avoided.
Of course, it is not necessary for any one product to practice the invention to achieve all of the advantages set forth above at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic diagram of the internal structure of the present invention;
FIG. 3 is a schematic cross-sectional view of FIG. 2 according to the present invention;
FIG. 4 is a schematic view of the mounting structure of the stand of the present invention;
FIG. 5 is a schematic view of the mounting structure of the stand and the valve plate of the present invention;
FIG. 6 is a schematic diagram of a base plate structure according to the present invention;
FIG. 7 is a schematic view of the structure of the base plate and the first housing of the present invention;
FIG. 8 is a schematic view of the structure of the bottom plate and the second housing of the present invention;
in the drawings, the list of components represented by the various numbers is as follows:
In the figure: 1. a bottom plate; 101. an extension block; 102. a boss; 103. a groove; 104. a deep groove; 2. a base; 201. a case body; 2011. a step surface; 202. a box cover; 2021. rectangular grooves; 2022. a guide hole; 203. a rectangular bar; 3. an air inlet pipe; 4. a sliding seat; 401. a pin rod; 402. a convex surface; 5. a limit rod; 6. a valve plate; 7. a pin shaft; 701. a tank body; 8. a vertical frame; 801. a top plate; 802. a bottom plate; 803. a pin hole; 804. a long groove; 805. a round hole; 806. a hinge base; 9. a pin rod; 10. an upper clamping plate; 11. a first spring; 12. a lower clamping plate; 13. a second spring; 14. a first rod body; 15. a second rod body; 16. a connecting rod; 1601. a through groove; 17. a vertical seat; 18. a slide bar; 19. a third spring; 20. a first housing; 2001. a first edge; 2002. a mounting groove; 2003. a buckle body; 2004. a bump; 21. a second housing; 2101. a second edge; 2102. a clamping groove; 22. rectangular blocks; 23. and an exhaust pipe.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-8, the invention is a low temperature environment anti-vibration testing device for a liquid crystal display, comprising:
the base comprises a base plate 1 and a base 2, and the base 2 is fixedly arranged on the upper surface of the base plate 1;
The base 2 comprises a box body 201 and a box cover 202, the box cover 202 is mounted on an opening of the box body 201 in a matched mode, a rectangular groove 2021 is formed in the middle of the box cover 202, and two ends of the box body 201 are communicated with an air inlet pipe 3;
the clamping mechanism is symmetrically provided with two assembly clamping mechanisms on the base 2, and the two assembly clamping mechanisms are used for fixing the display;
The clamping mechanism comprises a sliding seat 4, a vertical frame 8 and clamping parts, wherein the sliding seat 4 is sleeved on the box body 201, the vertical frame 8 is fixedly arranged on the sliding seat 4, and two groups of clamping parts are slidably arranged on the vertical frame 8;
The linkage mechanism comprises valve plates 6 and guide parts, two valve plates 6 are rotatably arranged in the box body 201, the valve plates 6 seal the air outlet of the air inlet pipe 3, the guide parts are slidably arranged on the box cover 202, the valve plates 6 push the guide parts to move, and the other ends of the guide parts are in contact with the clamping parts;
The bottom of the base plate 1 is provided with a deep groove 104, the air inlet pipe 3 is positioned in the deep groove 104, and the air outlet end of the air inlet pipe 3 passes through the base plate 1 and is communicated with the inside of the box body 201;
the shell assembly comprises a first shell 20 and a second shell 21, wherein the first shell 20 and the second shell 21 are slidably arranged on the base plate 1, and the base plate 1, the first shell 20 and the second shell 21 form a closed cavity;
The clamping mechanism and the linkage mechanism are positioned in the cavity.
The two opposite sides of the box 201 are provided with step surfaces 2011, the two opposite sides of the box 201 are provided with rectangular strips 203, the rectangular strips 203 are located on one side of the step surfaces 2011, the opening of the box 201 is closed through the box cover 202, rectangular grooves 2021 and guide holes 2022 are formed in the box cover 202 in a penetrating mode, the two groups of guide holes 2022 are arranged on the two sides of the rectangular grooves 2021, sliding seats 4 are of inverted U-shaped structures, the two opposite inner sides of the sliding seats 4 are provided with convex surfaces 402, the two sliding seats 4 are clamped on the outer sides of the box 201, the sliding seats 4 are distributed corresponding to the guide holes 2022, and meanwhile the convex surfaces 402 are installed between the step surfaces 2011 and the rectangular strips 203 in a matched mode.
The upper and lower both ends of grudging post 8 are connected with roof 801 and bottom plate 802 respectively, the pinhole 803 has all been run through on roof 801 and the bottom plate 802, install stand 9 between two pinholes 803, run through on the vertical side of grudging post 8 has elongated slot 804, the clamping part includes clamping assembly and lower clamping assembly, clamping assembly includes punch holder 10 and first spring 11, punch holder 10 and first spring 11 all cup joint on stand 9, first spring 11 is located between punch holder 10 and roof 801, the one end of punch holder 10 passes elongated slot 804 and points to another grudging post 8, clamping assembly includes lower plate 12 and second spring 13 down, lower plate 12 and second spring 13 all cup joint on stand 9, second spring 13 is located between lower plate 12 and bottom plate 802, the one end of lower plate 12 passes elongated slot 804 and points to another grudging post 8, all install the foam-rubber cushion on the both sides that punch holder 10 and lower plate 12 are close to each other.
The bottom plate 802 is provided with a group of round holes 805, the round holes 805 are in one-to-one correspondence with the guide holes 2022, the pin shafts 7 are installed in the box 201, the end parts of the pin shafts 7 sequentially penetrate through the side walls of the box 201 and the side walls of the sliding seat 4 to be extended to the outside of the sliding seat 4, one end of the valve plate 6 is sleeved on the pin shafts 7, the valve plate 6 and the pin shafts 7 synchronously rotate, a hinging seat 806 is arranged between the two round holes 805, a connecting rod 16 is rotatably installed on the hinging seat 806, the connecting rod 16 is mutually perpendicular to the pin shafts 7, through grooves 1601 are formed in two ends of the connecting rod 16, two ends of the connecting rod 16 are respectively connected with a first rod body 14 and a second rod body 15, a pin rod body installed on the first rod body 14 and a pin rod body installed on the second rod body 15 are located in corresponding through grooves 1601, one end of the first rod body 14 penetrates through the long groove 804 and the guide holes 2022 to be contacted with the surface of the valve plate 6, one end of the second rod body 15 penetrates through the long groove 804 and the guide holes 2022 to be extended into the box 201, the other end of the second rod body 15 slides along a channel formed by the long groove 804 and the guide holes 2022, the other end of the second rod body 15 penetrates through the lower clamping plate 12, the upper end of the connecting rod body 15 is provided with a nut 12, and the upper end of the lower rod body 12 is matched with the lower nut 12 is located at the lower side of the lower clamping plate 12.
The upper surface of the base plate 1 is provided with a boss 102, grooves 103 are formed in two opposite side surfaces of the boss 102, two sets of stand 17 are mounted on the base plate 1, and one set of stand 17 is mounted in a matched mode with the first shell 20 or the second shell 21.
The vertical opening outside of first casing 20 is equipped with first edge body 2001, the mounting groove 2002 has all been seted up to two relative outsides of first edge body 2001, install the knot body 2003 on the mounting groove 2002, first casing 20 cup joints in the outside of boss 102, be equipped with on two relative medial surfaces of first casing 20 with recess 103 complex bead, two relative lateral surface bottoms of second casing 21 all are equipped with two first lugs 2004, install slide bar 18 between two relative first lugs 2004 of distributing, third spring 19 has been cup jointed on the slide bar 18, be located the outside of corresponding riser 17 between two relative first lugs 2004 of distributing, slide bar 18 passes corresponding riser 17.
The vertical opening end face of the second shell 21 extends to form a second edge 2101, the second edge 2101 is matched with and installed in the vertical opening of the first shell 20, clamping grooves 2102 are formed in two opposite outer side faces of the second shell 21, buckling bodies 2003 are matched with the clamping grooves 2102, the second shell 21 is sleeved on the outer side of the boss 102, ribs matched with the grooves 103 are arranged on two opposite inner side faces of the second shell 21, two second protruding blocks 2103 are arranged at the bottoms of two opposite outer side faces of the second shell 21, a sliding rod 18 is installed between the two second protruding blocks 2103, a third spring 19 is sleeved on the sliding rod 18, the two second protruding blocks 2103 which are distributed oppositely are located on the outer sides of corresponding vertical seats 17, and the sliding rod 18 penetrates through the corresponding vertical seats 17.
Rectangular blocks 22 are arranged on the inner sides of the first shell 20 and the second shell 21, a groove 701 is formed in the end portion of the pin shaft 7, the cross section of the groove 701 is of a semicircular structure, the groove 701 is located at the bottom of the pin shaft 7, pin rods 401 are arranged on two opposite outer side surfaces of the sliding seat 4, limiting rods 5 are rotatably arranged on the pin rods 401, the pin rods 401 are connected with the limiting rods 5 through torsion springs, the torsion springs push the plane at the upper ends of the limiting rods 5 to be attached to one surface of the groove 701, and the rectangular blocks 22 close to the limiting rods 5 push the lower ends of the limiting rods 5 to rotate upwards.
The corner of base plate 1 all outwards extends there is extension piece 101, and the supporting legs is installed to the bottom surface of extension piece 101, improves the supporting effect of base plate 1 through the extension piece 101 that is equipped with, avoids taking place to empty at the in-process of vibration.
An exhaust pipe 23 is installed outside the first casing 20 or the second casing 21, and a control valve is installed on the exhaust pipe 23;
When the first shell 20 and the second shell 21 which are far away from each other are closed, the first shell 20 and the second shell 21 which are pushed to be installed are close to each other, springs between the opposite seat 17 and the second convex block 2103 and springs between the vertical seat 17 and the first convex block 2004 are compressed until the opening of the first shell 20 is attached to the opening of the second shell 21, the end part of the buckle body 2003 is matched and installed in the clamping groove 2102, locking between the first shell 20 and the second shell 21 is achieved, in addition, a second edge body 2101 is arranged on the opening of the second shell 21, and the second edge body 2101 is matched and installed in the opening of the first shell 20, so that sealing of a joint between the first shell 20 and the second shell 21 is achieved;
In the process that the first shell 20 and the second shell 21 are close to each other, the rectangular block 22 arranged in the first shell 20 and the second shell 21 is close to the bottom end of the limiting rod 5, and the end part of the rectangular block 22 pushes the bottom end of the limiting rod 5 to rotate upwards due to the fact that the end part of the rectangular block 22 is of a chamfer structure, so that the upper end of the limiting rod 5 is separated from the groove 701, and the upper end of the limiting rod 5 is far away from the end part of the pin shaft 7;
the display to be detected is arranged between the two assembly clamping mechanisms, and the clamping of one side of the display is completed through two clamping parts arranged on the vertical frame 8;
In the clamping process, the nuts arranged on the second rod body 15 are rotated to realize that the nuts are far away from the lower clamping plate 12, the nuts are far away from each other by pushing the upper clamping plate 10 and the lower clamping plate 12 which are arranged to slide outwards along the upright post 9, the first spring 11 and the second spring 13 are compressed, and one side edge of the display to be clamped is placed between the upper clamping plate 10 and the lower clamping plate 12, so that the clamping of the side edge of the display is completed;
After clamping is completed, the nut is contacted with the upper side surface of the lower clamping plate 12 through rotating the nut, as the second rod body 15 is connected with the first rod body 14 through the 16 limiting rod 5, and meanwhile, the second rod body 15 is rotatably installed on the hinging seat 806, the bottom end of the first rod body 14 pushes the valve plate 6 to rotate around the pin shaft 7, the air outlet of the air inlet pipe 3 is closed, in the air inlet pipe 3 air inlet process, the air pressure of the air outlet end of the air inlet pipe 3 is increased, after the rotating force of the air pressure pushing the valve plate 6 is larger than the force of the first rod body 14 pushing the valve plate 6, the air cooling pushes the valve plate 6 to rotate upwards, the rotating valve plate 6 pushes the first rod body 14 to move upwards, the upward moving first rod body 14 pushes the second rod body 15 to move downwards through the connecting rod 16, and the integral downward movement of the upper clamping plate 10 and the lower clamping plate 12 for clamping the display is completed, so that the pressure of the installed second spring 13 is reduced, the second spring 13 is reset, the upper clamping plate 10 and the lower clamping plate 12 of the display is driven to move upwards after air outlet, the air inlet pipe 3 is reset, the display is realized, and the air cooling vibration is realized through periodical second spring 13 reset, and the low-temperature vibration is detected and the low-temperature environment is provided for clamping through entering;
the bottom end of the first rod body 14 is close to the connecting end of the valve plate 6 and the pin shaft 7, the distance between the contact end of the first rod body 14 and the axis is smaller than the distance between the central point of the valve plate 6 and the axis of the pin shaft 7, in addition, the distance between the first rod body 14 and the middle connecting point of the connecting rod 16 is larger than the distance between the middle connecting point of the connecting rod 16 and the second rod body 15, so that a labor-saving structure is formed, and the valve plate 6 is conveniently pushed to rotate upwards around the pin shaft 7 by smaller air pressure;
When the shell assembly is closed, one end of the buckle body 2003 far away from the clamping groove 2102 is pressed, so that the end part of the buckle body 2003 is separated from the clamping groove 2102, and the first shell 20 and the second shell 21 are pushed away from each other under the left and right sides of the two groups of third springs 19, so that the shell assembly is opened;
when the first shell 20 and the second shell 21 are completely opened, the rectangular block 22 is separated from the lower end of the limiting rod 5, and the upper end of the limiting rod 5 is pushed by the mounted torsion spring to be in plane contact with the groove body 701, so that the pin shaft 7 is prevented from rotating to one side, and after the first shell 20 and the second shell 21 are opened, the air outlet end of the air inlet pipe 3 is closed, and the waste of cold air is avoided.
The preferred embodiments of the invention disclosed above are intended only to assist in the explanation of the invention. The preferred embodiments are not exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.
Claims (9)
1. A low temperature environment shock resistance testing device for a liquid crystal display, comprising:
the base comprises a base plate (1) and a base (2), wherein the base (2) is fixedly arranged on the upper surface of the base plate (1);
The base (2) comprises a box body (201) and a box cover (202), the box cover (202) is mounted on an opening of the box body (201) in a matched mode, a rectangular groove (2021) is formed in the middle of the box cover (202), and two ends of the box body (201) are communicated with an air inlet pipe (3);
the clamping mechanism is characterized in that two assembly clamping mechanisms are symmetrically arranged on the base (2), and the two assembly clamping mechanisms are used for fixing the display;
the clamping mechanism comprises a sliding seat (4), a vertical frame (8) and clamping parts, wherein the sliding seat (4) is sleeved on the box body (201), the vertical frame (8) is fixedly arranged on the sliding seat (4), and two groups of clamping parts are slidably arranged on the vertical frame (8);
The linkage mechanism comprises valve plates (6) and guide parts, two valve plates (6) are rotatably arranged in the box body (201), the valve plates (6) seal the air outlet of the air inlet pipe (3), the guide parts are slidably arranged on the box cover (202), the valve plates (6) push the guide parts to move, and the other ends of the guide parts are in contact with the clamping parts;
The shell assembly comprises a first shell (20) and a second shell (21), wherein the first shell (20) and the second shell (21) are both slidably mounted on a base plate (1), and the base plate (1), the first shell (20) and the second shell (21) form a closed cavity;
The clamping mechanism and the linkage mechanism are positioned in the cavity.
2. The low-temperature environment vibration-resistant testing device for a liquid crystal display according to claim 1, wherein: step surfaces (2011) are arranged on two opposite side surfaces of the box body (201), rectangular strips (203) are arranged on two opposite sides of the box body (201), and the rectangular strips (203) are located on one side of the step surfaces (2011);
the opening of the box body (201) is closed by a box cover (202);
the box cover (202) is penetrated with a rectangular groove (2021) and guide holes (2022), two groups of guide holes (2022) are arranged, and the two groups of guide holes (2022) are positioned on two sides of the rectangular groove (2021);
The sliding seat (4) is of an inverted U-shaped structure, convex surfaces (402) are arranged on two opposite inner side surfaces of the sliding seat (4), the two sliding seat (4) are clamped on the outer side of the box body (201), the sliding seat (4) and the guide holes (2022) are correspondingly distributed, and meanwhile the convex surfaces (402) are matched and installed between the step surface (2011) and the rectangular strips (203).
3. The low-temperature environment vibration-resistant testing device for a liquid crystal display according to claim 2, wherein: the upper end and the lower end of the stand (8) are respectively connected with a top plate (801) and a bottom plate (802), pin holes (803) are formed in the top plate (801) and the bottom plate (802), and a stand column (9) is arranged between the two pin holes (803);
A long groove (804) is penetrated on the vertical side surface of the vertical frame (8);
the clamping part comprises an upper clamping assembly and a lower clamping assembly;
The upper clamping assembly comprises an upper clamping plate (10) and a first spring (11), the upper clamping plate (10) and the first spring (11) are both sleeved on the upright post (9), the first spring (11) is positioned between the upper clamping plate (10) and the top plate (801), and one end of the upper clamping plate (10) passes through the long groove (804) to be directed to the other upright post (8);
The lower clamping assembly comprises a lower clamping plate (12) and a second spring (13), the lower clamping plate (12) and the second spring (13) are sleeved on the upright post (9), the second spring (13) is positioned between the lower clamping plate (12) and the bottom plate (802), and one end of the lower clamping plate (12) passes through the long groove (804) to be directed to the other upright post (8);
Sponge pads are arranged on two side surfaces of the upper clamping plate (10) and the lower clamping plate (12) which are close to each other.
4. A low-temperature environment vibration-proof testing device for a liquid crystal display according to claim 3, wherein: the bottom plate (802) is provided with a group of round holes (805), and the round holes (805) are in one-to-one correspondence with the guide holes (2022);
A pin shaft (7) is arranged in the box body (201), the end part of the pin shaft (7) sequentially penetrates through the side wall of the box body (201) and the side wall of the sliding seat (4) to extend to the outside of the sliding seat (4), one end of the valve plate (6) is sleeved on the pin shaft (7), and the valve plate (6) and the pin shaft (7) synchronously rotate;
a hinge seat (806) is arranged between the two round holes (805), a connecting rod (16) is rotatably arranged on the hinge seat (806), the connecting rod (16) is mutually perpendicular to the pin shaft (7), and through grooves (1601) are formed in two ends of the connecting rod (16);
the two ends of the connecting rod (16) are respectively connected with a first rod body (14) and a second rod body (15), and a pin rod arranged on the first rod body (14) and a pin rod arranged on the second rod body (15) are positioned in corresponding through grooves (1601);
one end of the first rod body (14) passes through the long groove (804) and the guide hole (2022) to be in contact with the surface of the valve plate (6), one end of the second rod body (15) passes through the long groove (804) and the guide hole (2022) to extend into the box body (201), the second rod body (15) slides along a channel formed by the long groove (804) and the guide hole (2022), the other end of the second rod body (15) passes through a light hole formed in the lower clamping plate (12), a position-adjustable nut is mounted on the second rod body (15) in a matched mode, the nut is located on the upper side of the lower clamping plate (12), and meanwhile the nut is in contact with the lower clamping plate (12).
5. The low-temperature environment vibration-resistant testing device for a liquid crystal display according to claim 1, wherein: the base plate (1) is provided with a boss (102) on the upper surface, grooves (103) are formed in two opposite side faces of the boss (102), two sets of stand seats (17) are arranged on the base plate (1), and one set of stand seats (17) is matched with the first shell (20) or the second shell (21).
6. The low-temperature environment vibration-resistant testing device for liquid crystal display according to claim 5, wherein: a first edge body (2001) is arranged outside the vertical opening of the first shell (20), mounting grooves (2002) are formed in two opposite outer sides of the first edge body (2001), and buckle bodies (2003) are mounted on the mounting grooves (2002);
the first shell (20) is sleeved on the outer side of the boss (102), and ribs matched with the grooves (103) are arranged on two opposite inner sides of the first shell (20);
Two first protruding blocks (2004) are arranged at the bottoms of two opposite outer side surfaces of the second shell (21), a sliding rod (18) is arranged between the two first protruding blocks (2004) which are distributed oppositely, a third spring (19) is sleeved on the sliding rod (18), the two first protruding blocks (2004) which are distributed oppositely are located at the outer sides of the corresponding standing seats (17), and the sliding rod (18) penetrates through the corresponding standing seats (17).
7. The low-temperature environment vibration-resistant testing device for liquid crystal display according to claim 6, wherein: the end face of the vertical opening of the second shell (21) is extended with a second edge body (2101), the second edge body (2101) is installed in the vertical opening of the first shell (20) in a matched mode, clamping grooves (2102) are formed in two opposite outer side faces of the second shell (21), and the buckling bodies (2003) are installed in a matched mode with the clamping grooves (2102);
The second shell (21) is sleeved on the outer side of the boss (102), and ribs matched with the grooves (103) are arranged on two opposite inner side surfaces of the second shell (21);
Two second protruding blocks (2103) are arranged at the bottoms of two opposite outer side faces of the second shell (21), a sliding rod (18) is arranged between the two second protruding blocks (2103) which are distributed oppositely, a third spring (19) is sleeved on the sliding rod (18), the two second protruding blocks (2103) which are distributed oppositely are located at the outer sides of corresponding standing seats (17), and the sliding rod (18) penetrates through the corresponding standing seats (17).
8. The low-temperature environment vibration-resistant testing device for liquid crystal display according to claim 4, wherein: rectangular blocks (22) are arranged on the inner sides of the first shell (20) and the second shell (21);
a groove body (701) is formed at the end part of the pin shaft (7), the cross section of the groove body (701) is of a semicircular structure, and the groove body (701) is positioned at the bottom of the pin shaft (7);
The two opposite outer side surfaces of the sliding seat (4) are respectively provided with a pin rod (401), each pin rod (401) is rotatably provided with a limiting rod (5), each pin rod (401) is connected with each limiting rod (5) through a torsion spring, and the torsion springs push the plane at the upper end of each limiting rod (5) to be attached to the surface of the groove body (701);
The rectangular block (22) close to the limiting rod (5) pushes the lower end of the limiting rod (5) to rotate upwards.
9. The low-temperature environment vibration-resistant testing device for a liquid crystal display according to claim 1, wherein: the corner of the base plate (1) is outwards extended with an extension block (101), and the bottom surface of the extension block (101) is provided with supporting feet.
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| CN202311052978.8A CN117233988B (en) | 2023-08-21 | 2023-08-21 | Low-temperature environment anti-vibration testing device for liquid crystal display |
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| CN108828802A (en) * | 2018-06-22 | 2018-11-16 | 朱晓明 | One kind being used for liquid crystal display module detecting device |
| CN214222617U (en) * | 2020-12-07 | 2021-09-17 | 深圳市星百亿电子有限公司 | Liquid crystal display with antidetonation function is convenient for assemble |
| CN214311187U (en) * | 2021-01-13 | 2021-09-28 | 深圳市源杰信电子科技有限公司 | Automatic vibration detection device for liquid crystal display screen |
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| CN115307856A (en) * | 2022-07-21 | 2022-11-08 | 浙江沐泽电子科技有限公司 | Low-temperature environment anti-seismic testing device and method for liquid crystal display |
| CN115931276A (en) * | 2023-01-09 | 2023-04-07 | 扬州高捷电子科技有限公司 | Low-temperature environment anti-seismic testing device for liquid crystal display |
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| CN108828802A (en) * | 2018-06-22 | 2018-11-16 | 朱晓明 | One kind being used for liquid crystal display module detecting device |
| CN214222617U (en) * | 2020-12-07 | 2021-09-17 | 深圳市星百亿电子有限公司 | Liquid crystal display with antidetonation function is convenient for assemble |
| CN214311187U (en) * | 2021-01-13 | 2021-09-28 | 深圳市源杰信电子科技有限公司 | Automatic vibration detection device for liquid crystal display screen |
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| CN115931276A (en) * | 2023-01-09 | 2023-04-07 | 扬州高捷电子科技有限公司 | Low-temperature environment anti-seismic testing device for liquid crystal display |
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