Alignment device

Abstract

The utility model discloses a kind of alignment devices, it is related to electronic equipment manufacturing technical field.The alignment device is used to center screen in the interior of shell, and the alignment device includes base, positioning frame and limiting sheet, positioning frame is located in base and is equipped with limiting slot, shell is placed in limiting slot, and the outer wall of shell and the groove wall of limiting slot are inlaid;The adjacent two sides of positioning frame are movably equipped with limiting sheet, the thickness of multiple limiting sheets is same, limiting sheet extends into limiting slot and is inlaid with the inner wall of shell, to limit the distance between the outer periphery of screen and the inner wall of shell.The technical scheme provided by the utility model improves the uniformity of gap between screen and shell, and then improves screen assembly precision.

Description

Technical Field

[0001] This utility model relates to the field of electronic equipment manufacturing technology, and in particular to an alignment device. Background Technology

[0002] In the field of modern electronic device manufacturing, especially in products such as smartphones and tablets, the assembly precision of the screen and the casing is crucial to the overall performance of the product. The screen needs to be precisely centered inside the casing to avoid problems such as touchscreen malfunction and uneven bezels caused by positional deviations. However, in actual production, the external dimensions of the touchscreen may have some errors. To accommodate these errors, the internal dimensions of the casing are usually appropriately enlarged, resulting in a gap between the screen and the casing after installation.

[0003] Most existing screen installation methods involve directly attaching the screen to the housing by hand, resulting in uneven gaps between the screen and the housing, which affects product quality. Utility Model Content

[0004] The main purpose of this invention is to provide an alignment device that aims to improve the uniformity of the gap between the screen and the housing, thereby improving the screen assembly accuracy.

[0005] To achieve the above objectives, the present invention proposes an alignment device for centering and positioning the screen inside the housing, comprising:

[0006] Base;

[0007] A positioning frame, movably mounted on the base and provided with a limiting groove, the housing being placed in the limiting groove, and the outer wall of the housing being in contact with the groove wall of the limiting groove; and,

[0008] The positioning frame is provided with movable limiting pieces on both sides. The multiple limiting pieces have the same thickness and extend into the limiting groove and fit against the inner wall of the housing to limit the distance between the outer periphery of the screen and the inner wall of the housing.

[0009] In one embodiment, the alignment device further includes:

[0010] A sliding assembly, wherein each of the limiting pieces is disposed in one of the sliding assemblies, and the sliding assembly is used to drive the limiting piece to move relative to the limiting groove.

[0011] In one embodiment, the sliding component includes:

[0012] A guide groove is provided on the side of the positioning frame away from the base, and the guide groove extends from the groove wall of the limiting groove to the outer wall of the positioning frame.

[0013] A slider is slidably disposed in the guide groove, and a limiting piece is disposed on the side of the slider facing the limiting groove; and,

[0014] A stop is provided in the positioning frame, and the stop is used to fix the slider in the guide groove.

[0015] In one embodiment, the stop includes:

[0016] The screw, wherein the slider has a guide hole, one end of the screw is fixed to the bottom of the guide groove, and the other end of the screw passes through and protrudes from the guide hole; and,

[0017] A nut is provided at one end of the screw that is exposed in the guide hole and is threadedly connected to the screw. The nut can move close to or away from the guide groove to engage with the guide groove to clamp or release the slider.

[0018] In one embodiment, the two limiting pieces located on adjacent sides of the positioning frame move in perpendicular directions.

[0019] In one embodiment, the alignment device further includes:

[0020] A driving component, disposed on the base and motive-connected to the positioning frame, is used to drive the positioning frame away from the base; and,

[0021] A locking assembly connects the base and the positioning frame, the locking assembly being used to lock the positioning frame to the base.

[0022] In one embodiment, the driving component includes:

[0023] The guide post is fixed at one end to the base, and the positioning frame has a first through hole, with the other end of the positioning frame passing through the first through hole; and,

[0024] An elastic element is sleeved on the outer periphery of the guide post. One end of the elastic element abuts against the base, and the other end of the elastic element abuts against the positioning block, so that the positioning frame tends to move away from the base.

[0025] In one embodiment, the locking component includes:

[0026] A fixing post, one end of which is disposed on the base, the positioning frame having a second through hole, the other end of which passes through and protrudes from the second through hole; and,

[0027] A rotating component is rotatably disposed at one end of the fixed column exposed in the second through hole, and the rotating component abuts against the positioning frame.

[0028] In one embodiment, the outer periphery of the end of the rotating member connected to the fixed column is provided with a protrusion, and the protrusion cooperates with the base to clamp the positioning frame.

[0029] In one embodiment, the end of the rotating member away from the fixed column is provided with an arc-shaped operating part, the positioning frame is provided with a clearance groove, and the arc-shaped operating part abuts against the clearance groove.

[0030] In one embodiment, the positioning frame includes two connected positioning blocks, which are located on adjacent sides of the base and together with the base form the limiting groove. Each positioning block is driven to be connected to a driving component.

[0031] In the technical solution of this utility model, the alignment device is used to center the screen inside the housing. The alignment device includes a base, a positioning frame, and a limiting piece. The positioning frame is located on the base and has a limiting groove. The housing is placed in the limiting groove, and the outer wall of the housing is in contact with the groove wall of the limiting groove. Limiting pieces are movably provided on both adjacent sides of the positioning frame. Multiple limiting pieces have the same thickness and extend into the limiting groove and are in contact with the inner wall of the housing to limit the distance between the outer periphery of the screen and the inner wall of the housing. Compared to existing technologies that rely solely on manually placing the screen into the housing, this invention provides an alignment device. The housing is positioned by placing it in a limiting groove and ensuring the outer wall of the housing is tightly fitted against the groove wall. The limiting pieces are moved so that one side of each piece is tightly fitted against the inner wall of the housing, and the outer periphery of the screen is fitted against the other side of each limiting piece to place it within the housing. Since all limiting pieces have the same thickness, the gap between the outer periphery of the screen and the inner wall of the housing is uniform, achieving centered positioning of the screen and improving screen assembly accuracy. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0033] Figure 1 A schematic diagram of an embodiment of the alignment device provided by this utility model;

[0034] Figure 2 A schematic diagram of the structure of an embodiment of the alignment device, housing and screen provided by this utility model;

[0035] Figure 3 for Figure 2 A cross-sectional view of one embodiment;

[0036] Figure 4 for Figure 3 An enlarged view of an embodiment at point A;

[0037] Figure 5 for Figure 1 A cross-sectional view of one embodiment;

[0038] Figure 6 This is a schematic diagram of an embodiment of the alignment device and housing provided by this utility model.

[0039] Explanation of icon numbers:

[0040] 100. Base;

[0041] 200, Positioning frame; 210, Positioning block; 220, Limiting groove; 230, Clearance groove;

[0042] 300, limiting plate;

[0043] 410, guide groove; 420, slider; 421, guide hole; 430, screw; 440, nut;

[0044] 510. Guide post; 520. Elastic element;

[0045] 610. Fixed column; 620. Rotating component; 621. Protrusion; 622. Arc-shaped operating part; 623. Smooth part; 630. Rotating shaft;

[0046] 710. Housing; 720. Screen.

[0047] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0048] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0049] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0050] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0051] In the field of modern electronic device manufacturing, especially in products such as smartphones and tablets, the assembly precision of the screen and casing is crucial to the overall performance of the product. The screen needs to be precisely centered inside the casing to avoid problems such as touchscreen malfunction and uneven bezels caused by positional deviations. However, in actual production, the external dimensions of the touchscreen may have some errors. To accommodate these errors, the internal dimensions of the casing are usually appropriately enlarged, resulting in a gap between the screen and the casing after installation.

[0052] Most existing screen installation methods involve directly attaching the screen to the housing by hand, resulting in uneven gaps between the screen and the housing, which affects product quality.

[0053] This invention proposes an alignment device to improve the uniformity of the gap between the screen and the housing, thereby improving the screen assembly accuracy.

[0054] Please refer to 1 to Figure 3 In one embodiment, the alignment device includes a base 100, a positioning frame 200, and a limiting piece 300. The positioning frame 200 is disposed on the base 100 and has a limiting groove 220. The housing 710 is placed in the limiting groove 220, and the outer wall of the housing 710 is in contact with the groove wall of the limiting groove 220. Limiting pieces 300 are movably provided on both adjacent sides of the positioning frame 200. The multiple limiting pieces 300 have the same thickness and extend into the limiting groove 220 and are in contact with the inner wall of the housing 710 to limit the distance between the outer periphery of the screen 720 and the inner wall of the housing 710.

[0055] The alignment device is used to center and position the screen 720 inside the housing 710. The screen 720 can be a display screen or a touch screen, etc., and the housing 710 can be the casing of an electronic device such as a tablet computer or a mobile phone; there are no limitations on this. The housing 710 has a recess for mounting the screen 720. Both the housing 710 and the screen 720 have rectangular cross-sectional shapes. The difference between all corresponding sides of the housing 710 and the screen 720 is the same; that is, the difference between the length of the inner circumference of the housing 710 and the length of the outer circumference of the screen 720 is equal to the difference between the width of the inner circumference of the housing 710 and the width of the outer circumference of the screen 720.

[0056] The base 100 provides support and a mounting base for the alignment device. The positioning frame 200 and the base 100 together limit the housing 710. In one embodiment, the cross-sectional shape of the limiting groove 220 is adapted to the cross-sectional shape of the housing 710, that is, the cross-sectional shape of the limiting groove 220 is also rectangular, to ensure that the two adjacent groove walls of the limiting groove 220 fit against the two adjacent outer walls of the housing 710. In one embodiment, the inner periphery of the positioning frame 200 includes at least two adjacent and perpendicular surfaces, such that the positioning frame 200 is arranged along the periphery of the base 100 to form a rectangular limiting groove 220. In one embodiment, the inner periphery dimension of the limiting groove 220 is greater than or equal to the outer periphery dimension of the housing 710, to ensure that the limiting groove 220 can accommodate the housing 710.

[0057] Please see Figure 4 The limiting piece 300 is used to limit the gap between the outer periphery of the screen 720 and the inner wall of the housing 710. The thickness of the limiting piece 300 determines the gap between the screen 720 and the housing 710. In one embodiment, the thickness of all limiting pieces 300 is equal to half the difference between the length of the inner periphery of the housing 710 and the length of the outer periphery of the screen 720, and also equal to half the difference between the width of the inner periphery of the housing 710 and the width of the outer periphery of the screen 720, to ensure that the gap between the outer periphery of the screen 720 and the inner wall of the housing 710 is the same at all points. The thickness of the limiting piece 300 can be flexibly set according to the specific dimensions of the housing 710 and the screen 720, and is not limited here. In one embodiment, the limiting piece 300 can be configured to be made of metal or plastic, etc., and is not limited here. In one embodiment, a limiting piece 300 is movably provided on each of the adjacent sides of the positioning frame 200. The limiting piece 300 extends into the limiting groove 220 and can move relative to the positioning frame 200 to fit against the inner wall of the housing 710. Of course, in other embodiments, multiple limiting pieces 300 may be provided on each of the adjacent sides of the positioning frame 200; this is not a limitation. In this way, the limiting piece 300 cooperates with the groove wall of the limiting groove 220 to achieve the positioning of the housing 710 and prevent the housing 710 from moving during the installation of the screen 720.

[0058] In the technical solution of this utility model, the alignment device is used to center the screen 720 inside the housing 710. The alignment device includes a base 100, a positioning frame 200, and a limiting piece 300. The positioning frame 200 is disposed on the base 100 and has a limiting groove 220. The housing 710 is placed in the limiting groove 220, and the outer wall of the housing 710 is in contact with the groove wall of the limiting groove 220. Limiting pieces 300 are movably provided on both adjacent sides of the positioning frame 200. The multiple limiting pieces 300 have the same thickness and extend into the limiting groove 220 and are in contact with the inner wall of the housing 710 to limit the distance between the outer periphery of the screen 720 and the inner wall of the housing 710. Compared to the existing technology that simply places the screen 720 into the housing 710 manually, the present invention provides an alignment device. This device positions the housing 710 by placing it in the limiting groove 220 and ensuring the outer wall of the housing 710 is tightly fitted against the groove wall of the limiting groove 220. The limiting pieces 300 are moved so that one side of each piece is tightly fitted against the inner wall of the housing 710, and the outer periphery of the screen 720 is fitted against the other side of each limiting piece 300 to place it within the housing 710. Since all the limiting pieces 300 have the same thickness, the gap between the outer periphery of the screen 720 and the inner wall of the housing 710 is uniform, achieving centered positioning of the screen 720 and thus improving the assembly accuracy of the screen 720.

[0059] Please see Figure 1 and Figure 5 In one embodiment, the alignment device includes a sliding component, and each limiting piece 300 is driven to be connected to a sliding component, which is used to drive the limiting piece 300 to move relative to the limiting groove 220.

[0060] In one embodiment, two sliding components are provided, located on adjacent sides of the positioning frame 200 and corresponding one-to-one with two limiting pieces 300. Of course, in other embodiments, multiple sliding components may be provided, each corresponding to a multiple limiting piece 300; this is not a limitation. In one embodiment, the sliding component includes a guide groove 410, a slider 420, and a stop. The guide groove 410 is located on the side of the positioning frame 200 away from the base 100, extending from the groove wall of the limiting groove 220 to the outer wall of the positioning frame 200. The slider 420 is slidably disposed in the guide groove 410, and the limiting piece 300 is located on the side of the slider 420 facing the limiting groove 220. The stop is located in the positioning frame 200 and is used to fix the slider 420 to the guide groove 410.

[0061] In one embodiment, the positioning frame 200 has a recessed guide groove 410 on the side opposite to the base 100. The width of the guide groove 410 is the same as the width of the slider 420 to prevent the slider 420 from shifting when moving along the guide groove 410. In one embodiment, the limiting piece 300 is detachably connected to the slider 420 to facilitate the replacement of limiting pieces 300 of different thicknesses according to different sizes of housings 710 and screens 720. In one embodiment, the slider 420 has a threaded hole on the side facing the limiting groove 220, and the limiting piece 300 is detachably connected to the slider 420 by bolts. Of course, in other embodiments, the slider 420 and the limiting piece 300 can also be detachably connected by snap-fit ​​or other means; or, the slider 420 and the limiting piece 300 can be fixedly connected. This is not a limitation. Of course, in other embodiments, the sliding assembly may also include a guide rail and a slide block to achieve a sliding connection between the positioning frame 200 and the limiting piece 300. This is not a limitation.

[0062] In one embodiment, the stop includes a screw 430 and a nut 440. The slider 420 is provided with a guide hole 421. One end of the screw 430 is fixed to the bottom of the guide groove 410, and the other end of the screw 430 passes through and protrudes from the guide hole 421. The nut 440 is provided at the end of the screw 430 that protrudes from the guide hole 421 and is threadedly connected to the screw 430. The nut 440 can approach or move away from the guide groove 410 to cooperate with the guide groove 410 to clamp or release the slider 420.

[0063] In one embodiment, the guide hole 421 has an elongated cross-sectional shape, and its extension direction is parallel to the extension direction of the guide groove 410. In another embodiment, the outer periphery of the screw 430 and the inner periphery of the nut 440 are both threaded, and the nut 440 rotates along the thread of the screw 430 to move closer to or away from the guide groove 410. The width of the guide hole 421 is greater than the outer diameter of the screw 430 and smaller than the outer diameter of the nut 440, so that when the nut 440 approaches the guide groove 410, it can abut against the slider 420, thereby fixing the slider 420 to the guide groove 410. In another embodiment, the stop can also be configured as a pin, with multiple insertion holes provided in the slider 420 and the guide groove 410. The slider 420 is fixed to the guide groove 410 by inserting the pin into the insertion holes. Of course, in other embodiments, the stop can also be configured as a snap-fit ​​structure, etc., and no limitation is made here.

[0064] When the screen 720 needs to be centered within the housing 710, first move the slider 420 toward the limiting groove 220 to ensure sufficient clearance between the limiting piece 300 and the groove wall of the limiting groove 220 to accommodate the side wall of the housing 710; then move the slider 420 away from the base 100 to allow the housing 710 to be placed into the limiting groove 220 and to fit against the groove wall of the limiting groove 220; after placing the housing 710, move the slider 420 closer to the base 100 so that the limiting piece 300 extends into the limiting groove 220; then move the slider 420 away from the limiting groove 220 until it fits against the inner wall of the housing 710; then, use the nut 440 to fix the slider 420 to achieve the positioning of the limiting piece 300; finally, place the two adjacent sides of the screen 720 into the housing 710 with the two limiting pieces 300 close together to achieve the centered positioning of the screen 720.

[0065] The technical solution of this utility model embodiment, by setting a sliding component, realizes the movement of the position of the limiting piece 300, so that the limiting piece 300 can fit against the inner wall of the housing 710 to adapt to housings 710 of different thicknesses, thereby improving the flexibility of the alignment device. By setting a stop member, the limiting piece 300 can be positioned to prevent it from moving during the installation of the screen 720, ensuring the centered positioning of the screen 720 and improving the assembly accuracy of the screen 720.

[0066] In one embodiment, the alignment device further includes a driving component and a locking component. The driving component is disposed on the base 100 and drivenly connected to the positioning frame 200. The driving component is used to drive the positioning frame 200 away from the base 100. The locking component connects the base 100 and the positioning frame 200 and is used to restrict the positioning frame 200 to the base 100.

[0067] Please see Figure 5 In one embodiment, the drive assembly includes a guide post 510 and an elastic element 520. One end of the guide post 510 is fixed to the base 100. The positioning frame 200 is provided with a first through hole, and the other end of the positioning frame 200 passes through the first through hole. The elastic element 520 is sleeved on the outer periphery of the guide post 510. One end of the elastic element 520 abuts against the base 100, and the other end of the elastic element 520 abuts against the positioning block 210, so that the positioning frame 200 tends to move away from the base 100.

[0068] In one embodiment, the first through hole includes a connected mounting hole and a limiting hole. The mounting hole is located near the base 100, and its inner diameter is larger than the outer diameter of the limiting hole. The guide post 510 passes through the mounting hole and the limiting hole in sequence. The elastic element 520 is located in the mounting hole and abuts against the periphery of the limiting hole. In one embodiment, the outer diameter of the guide post 510 is adapted to the inner diameter of the limiting hole to ensure that the elastic element 520 drives the positioning frame 200 to move along the guide post 510. Of course, in other embodiments, the inner diameter of the limiting hole may be slightly larger than the outer diameter of the guide post 510, which is not a limitation here. In one embodiment, the elastic element 520 is configured as a spring to ensure that the elastic element 520 has good elastic deformation capability. Of course, in other embodiments, the elastic element 520 may also be configured as silicone or rubber, etc., which is not a limitation here. Of course, in other embodiments, the driving component may also be configured as a cylinder, etc., which is not a limitation here.

[0069] Please see Figure 2 and Figure 5 In one embodiment, the locking assembly includes a fixed post 610 and a rotating member 620. One end of the fixed member is disposed on the base 100, and the positioning frame 200 is provided with a second through hole. The other end of the fixed post 610 passes through and is exposed in the second through hole. The rotating member 620 is rotatably disposed on the end of the fixed post 610 exposed in the second through hole, and the rotating member 620 abuts against the outer wall of the second through hole.

[0070] In one embodiment, one end of the rotating member 620 is provided with two parallel extensions. Both the extensions and the fixed post 610 are provided with connecting holes. The two extensions are located on opposite sides of the fixed post 610 and are rotatably connected to the fixed post 610 through the same rotating shaft 630. The ends of the two extensions can abut against the positioning frame 200 to restrict the positioning frame 200 to the base 100.

[0071] Please see Figure 2 and Figure 6 In one embodiment, the outer periphery of the end of the rotating member 620 connected to the fixed post 610 is provided with a protrusion 621, which cooperates with the base 100 to clamp the positioning frame 200. Specifically, in one embodiment, the outer periphery of the end of the extension with a connecting hole is provided with a smooth portion 623 and a protrusion, and the distance from the outer periphery of the protrusion to the axis of the connecting hole is greater than the distance from the outer periphery of the smooth portion 623 to the axis of the connecting hole. When the protrusion 621 faces the positioning frame 200, the protrusion 621 abuts against the positioning frame 200 so that the positioning frame 200 fits against the base 100; when the rotating member 620 is rotated, so that the protrusion 621 gradually moves away from the positioning frame 200 and the smooth portion 623 gradually moves towards the positioning frame 200, under the elastic force of the elastic member 520, the positioning frame 200 moves away from the base 100 along the guide post 510 until the positioning frame 200 abuts against the smooth portion 623.

[0072] Please see Figure 5 In one embodiment, the rotating member 620 has an arc-shaped operating part 622 at the end away from the fixed post 610, and the positioning frame 200 has a relief groove 230, with the arc-shaped operating part 622 abutting against the relief groove 230. In one embodiment, the relief groove 230 and the second through hole are located on adjacent sides of the limiting groove 220, and the relief groove 230 has an arc surface to accommodate the shape of the arc-shaped operating part 622. When the protrusion 621 faces the positioning frame 200, the end of the arc-shaped operating part 622 extends into the relief groove 230 and fits against the arc surface of the relief groove 230 to further restrict the positioning frame 200.

[0073] When it is necessary to center the screen 720 within the housing 710, first move the slider 420 toward the limiting groove 220; then rotate the rotating member 620 so that the smooth part 623 faces the positioning frame 200, and the elastic member 520 drives the positioning frame 200 away from the base 100 until it abuts against the smooth part 623, and the positioning frame 200 drives the limiting piece 300 away from the base 100; place the housing 710 into the limiting groove 220 and make it fit against the groove wall of the limiting groove 220; rotate the rotating member 620 again so that the convex The protruding part 621 faces the positioning frame 200, and the protruding part 621 and the arc-shaped operating part 622 press against the positioning frame 200 so that it fits against the base 100. The positioning frame 200 drives the limiting piece 300 to extend into the housing 710. Then, the slider 420 moves away from the limiting groove 220 until it fits against the inner wall of the housing 710, and the slider 420 is fixed. Finally, the two adjacent sides of the screen 720 are placed into the housing 710 with the two limiting pieces 300 close to each other, so that the screen 720 is centered.

[0074] The technical solution of this utility model embodiment, by setting a driving component and a locking component, enables the slider 420 to move away from or closer to the base 100, so as to place the housing 710 in the limiting groove 220 and ensure that the side wall of the housing 710 is located between the groove wall of the limiting groove 220 and the limiting piece 300; in addition, the driving component and the locking component have simple structures, are easy to operate, and improve the ease of use of the alignment device.

[0075] Please see Figure 1 In one embodiment, the positioning frame 200 includes two connected positioning blocks 210. The two positioning blocks 210 are located on adjacent sides of the base 100 and together with the base 100 form a limiting groove 220. Each positioning block 210 is driven to be connected to a driving component.

[0076] In one embodiment, the two positioning blocks 210 extend perpendicularly and are fixedly connected. The limiting groove 220 formed by the two positioning blocks 210 and the base 100 is a semi-open limiting groove 220, meaning that the limiting groove 220 only restricts the overall position of the housing 710 by limiting the position of two adjacent outer walls of the housing 710. In one embodiment, each positioning block 210 has a sliding component and a limiting piece 300 on the side facing away from the base 100. In one embodiment, two driving components are provided, and each of the two positioning blocks 210 has a first through hole, which corresponds one-to-one with the guide post 510. In one embodiment, one positioning block 210 has a second through hole, and the other positioning block 210 has an avoidance groove 230, so that the locking component can simultaneously limit the two positioning blocks 210. In one embodiment, the two positioning blocks 210 are integrally formed to ensure the stability of the overall structure of the positioning frame 200. Of course, in other embodiments, the two positioning blocks 210 can also be connected by snap-fit ​​or screw-fit, and the positioning frame 200 can also include three positioning blocks 210. Here, there is no limitation.

[0077] The technical solution of this utility model embodiment, by setting two positioning blocks 210 to form a semi-open limiting groove 220, enables the limiting groove 220 to limit the housing 710 of different sizes, making it more flexible to use and improving the application range and flexibility of the alignment device.

[0078] The above description is merely an exemplary embodiment of the present utility model and does not limit the scope of protection of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the scope of protection of the present utility model.

Claims

1. A positioning device for centering a screen inside a housing, characterized in that, include: Base; A positioning frame is provided on the base and has a limiting groove. The housing is placed in the limiting groove, and the outer wall of the housing is in contact with the groove wall of the limiting groove. as well as, The positioning frame is provided with movable limiting pieces on both sides. The multiple limiting pieces have the same thickness and extend into the limiting groove and fit against the inner wall of the housing to limit the distance between the outer periphery of the screen and the inner wall of the housing.

2. The alignment device as described in claim 1, characterized in that, The alignment device further includes: A sliding assembly, wherein each of the limiting pieces is disposed in one of the sliding assemblies, and the sliding assembly is used to drive the limiting piece to move relative to the limiting groove.

3. The alignment device as described in claim 2, characterized in that, The sliding component includes: A guide groove is provided on the side of the positioning frame away from the base, and the guide groove extends from the groove wall of the limiting groove to the outer wall of the positioning frame. A slider is slidably disposed in the guide groove, and a limiting piece is disposed on the side of the slider facing the limiting groove; and, A stop is provided on the positioning frame, and the stop is used to fix the slider to the guide groove.

4. The alignment device as described in claim 3, characterized in that, The stop includes: The screw, wherein the slider has a guide hole, one end of the screw is fixed to the bottom of the guide groove, and the other end of the screw passes through and protrudes from the guide hole; and, A nut is provided at one end of the screw that is exposed in the guide hole and is threadedly connected to the screw. The nut can move close to or away from the guide groove to engage with the guide groove to clamp or release the slider.

5. The alignment device as described in claim 1, characterized in that, The alignment device further includes: A driving component, disposed on the base and motive-connected to the positioning frame, is used to drive the positioning frame away from the base; and, A locking assembly connects the base and the positioning frame, the locking assembly being used to lock the positioning frame to the base.

6. The alignment device as described in claim 5, characterized in that, The driving component includes: The guide post is fixed at one end to the base, and the positioning frame has a first through hole, with the other end of the positioning frame passing through the first through hole; and, An elastic element is sleeved on the outer periphery of the guide post. One end of the elastic element abuts against the base, and the other end of the elastic element abuts against the positioning frame, so that the positioning frame tends to move away from the base.

7. The alignment device as described in claim 5, characterized in that, The locking component includes: A fixing post, one end of which is located on the base, the positioning frame having a second through hole, and the other end of the fixing post penetrating and protruding from the second through hole; and, A rotating component is rotatably disposed at one end of the fixed column exposed in the second through hole, and the rotating component abuts against the positioning frame.

8. The alignment device as described in claim 7, characterized in that, The outer periphery of the end of the rotating component connected to the fixed column is provided with a protrusion, which cooperates with the base to clamp the positioning frame.

9. The alignment device as described in claim 7, characterized in that, The rotating component has an arc-shaped operating part at one end away from the fixed column, and the positioning frame has a clearance groove, with the arc-shaped operating part abutting against the clearance groove.

10. The alignment device as described in claim 5, characterized in that, The positioning frame includes two connected positioning blocks. The two positioning blocks are located on adjacent sides of the base and together with the base form the limiting groove. Each positioning block is driven to be connected to a driving component.

Images