Tablet computer keyboard test equipment

Abstract

The utility model discloses and provides a test device for testing a keyboard of a tablet computer, which is efficient and adjustable in angle and height, has the advantages of simple structure, compact layout, convenience in operation and the like, and can quickly adjust the angle and height of a back plate module by rotating a screw on the side edge. Tablet computer keyboard products at different angles are tested, so that the testing efficiency is greatly improved. The testing keyboard comprises an electric cabinet module, a carrier plate module, a back plate module and a testing module, the carrier plate module is fixedly matched on the top surface of the electric cabinet module, the back plate module is fixedly matched on the carrier plate module, the testing keyboard is divided into a knocking end and a bending supporting end, the knocking end is matched with the bending supporting end through a rotating shaft, the knocking end is limited and matched on the carrier plate module, and the bending supporting end is matched with the knocking end through a rotating shaft. The bending supporting end is in limiting fit with the back plate module, the testing module is in limiting fit with the back plate module, and the testing module is in limiting fit with the knocking end on the testing keyboard. The device is applied to the field of product testing.

Description

TECHNICAL FIELD

[0001] The utility model is applied to product test field, especially relates to a test equipment of tablet computer keyboard. BACKGROUND

[0002] With the rapid development of tablet computer market, as an important input device, the stability and reliability of quality and performance of tablet computer keyboard are crucial to user experience. However, in the production process of tablet computer keyboard, how to ensure that each keyboard can reach the established quality standard and performance requirement has become a problem to be solved.

[0003] At present, we need to test the function of a keyboard product, and the keyboard test process needs to bend the product at different angles to collect the product test results at different angles. However, the existing technology generally uses the inherent angle backboard to test the tablet computer keyboard, and the backboard module needs to be replaced to test at different angles. This traditional test method is not efficient and causes unnecessary time and cost waste.

[0004] Therefore, based on the above problems, if a test device for testing tablet computer keyboard can be designed to be efficient and adjustable in angle and height, the test device has the advantages of simple structure, compact layout and convenient operation, etc. The backboard module angle and height can be quickly adjusted by rotating the screws on the side, and the tablet computer keyboard product at different angles can be tested, thereby greatly improving the test efficiency, which can well solve the above problems. SUMMARY

[0005] The utility model solves the technical problem that the prior art lacks, and designs a test device for testing tablet computer keyboard, which can be efficient and adjustable in angle and height. The test device has the advantages of simple structure, compact layout and convenient operation, etc. The backboard module angle and height can be quickly adjusted by rotating the screws on the side, and the tablet computer keyboard product at different angles can be tested, thereby greatly improving the test efficiency.

[0006] The utility model discloses a technical scheme adopted is: the utility model discloses an electric control box module, a carrier plate module, a backboard module and a test module, the carrier plate module fixedly cooperated in the electric control box module top, the backboard module fixedly cooperated in the carrier plate module, and the test keyboard is divided into knock end and bending support end, the knock end and the bending support end are through the rotary shaft cooperation, the knock end is limitedly cooperated in the carrier plate module, the bending support end with the backboard module limitedly cooperates, the test module is limitedly cooperated in the backboard module, the test module with the knock end on the test keyboard limitedly cooperates.

[0007] Further, the carrier plate module includes a large carrier plate and a small carrier plate, the small carrier plate is fixedly cooperated on the large carrier plate, the small carrier plate is provided with a product limiting assembly, a plurality of limiting assembly mounting holes and a horizontal profiling groove, the product limiting assembly is fixedly cooperated on the limiting assembly mounting hole, the knock end of the test keyboard is limitedly cooperated with the product limiting assembly and the horizontal profiling groove respectively, the large carrier plate is provided with a plurality of positioning pins, and the plurality of positioning pins are limitedly cooperated with the backboard module.

[0008] Further, the test module includes a fixing seat, a base, a plurality of first magnetic blocks, a large shaft, a module flip plate, a PCBA conversion plate, a test needle, a plurality of second magnetic blocks and a module handle, the test module is limitedly cooperated on the backboard module through the fixing seat, the plurality of first magnetic blocks and the large shaft are all limitedly cooperated on the base, the base is fixedly cooperated with the fixing seat, the module flip plate is rotationally cooperated with the base through the large shaft, the large shaft is provided with a plurality of torsional springs, the torsional springs are limitedly cooperated with the base and the module flip plate on both sides, the PCBA conversion plate and the plurality of second magnetic blocks are all fixedly cooperated on the module flip plate, the plurality of second magnetic blocks and the plurality of first magnetic blocks, the test needle is fixedly cooperated on the PCBA conversion plate, the test needle is contactly cooperated with the test keyboard, and the module flip plate is connectedly cooperated with the module handle.

[0009] Further, the product limiting assembly includes a hard limiting block and a plurality of soft limiting blocks, the hard limiting block and the plurality of soft limiting blocks are all fixedly cooperated on the limiting assembly mounting hole, and the hard limiting block and the plurality of soft limiting blocks are limitedly cooperated with the knock end respectively.

[0010] Further, the backboard module comprises a backboard base assembly, a lifting assembly and a turnover assembly, the backboard base assembly is fixedly matched on the large carrier plate, the lifting assembly is limitingly matched at the top end of the backboard base assembly, and the turnover assembly is limitingly matched at the top end of the lifting assembly.

[0011] Further, the backboard base assembly comprises a fixed bottom plate, a fixed bottom plate, a triangular knob, a screw element, a sliding block, a screw fixing seat and a lower backboard, the fixed bottom plate is fixedly matched on the large carrier plate, the fixed bottom plate, the screw fixing seat and the lower backboard are all fixedly matched on the fixed bottom plate, the lower backboard is limitingly matched with the test keyboard, the screw element is limitingly matched on the screw fixing seat, one end of the screw element is connected and matched with the triangular knob, the other end of the triangular knob is threadedly matched with the sliding block, the sliding block is slidingly matched on the fixed bottom plate, and a beveled slot is arranged on the sliding block. The beveled slot is slidingly matched with the lifting assembly.

[0012] Further, the lifting assembly comprises a plurality of support columns, a plurality of linear bearings, a lifting moving plate, a fixed top plate, a plurality of long screws, a short screw, a follower wheel fixing plate and a cam follower wheel, a plurality of the linear bearings are all fixedly matched on the lifting moving plate, the follower wheel fixing plate is fixedly matched on the lower surface of the lifting moving plate, the cam follower wheel is fixedly matched on the follower wheel fixing plate, the cam follower wheel is matched with the beveled slot, the two ends of a plurality of the support columns are respectively fixedly matched with the fixed top plate and the fixed bottom plate, a plurality of the support columns are slidingly matched with a plurality of the linear bearings, the short screw is threadedly matched on the fixed top plate, one end of the short screw is limitingly matched with the lifting moving plate, and a plurality of the long screws are threadedly passed through the fixed top plate and fixedly matched with the lifting moving plate.

[0013] Further, the turnover assembly comprises a pair of connecting fixed plates, a pair of small rotating shafts, a pair of rotating plates, a pair of locking knobs and a backboard element, a pair of the connecting fixed plates are respectively fixedly matched on the two sides of the lifting moving plate, a pair of the rotating plates are respectively rotationally matched with the connecting fixed plates through the small rotating shafts, a pair of the locking knobs are respectively arranged on the rotating plates, the locking knobs are limitingly matched with the rotating plates, and the two ends of the backboard element are respectively connected and matched with a pair of the rotating plates.

[0014] Further, a scale line is arranged on the rotating plate, a pointer is arranged on the connecting fixed plate, and the pointer is matched with the scale line.

[0015] Further, the back plate element is provided with a vertical profiling groove, a plurality of limiting installation holes, a plurality of soft limiting blocks, the soft limiting blocks are fixedly matched on the limiting installation holes, the bending support end is limitedly matched on the vertical profiling groove, and the soft limiting blocks are limitedly matched with the back plate element. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is the first structural view of the utility model;

[0017] Figure 2 is the second structural view of the utility model;

[0018] Figure 3 is the structural view of the carrier plate module;

[0019] Figure 4 is the structural view of the back plate module;

[0020] Figure 5 is the structural view of the back plate base assembly;

[0021] Figure 6 is the structural view of the lifting assembly;

[0022] Figure 7 is the structural view of the turnover assembly;

[0023] Figure 8 is the structural view of the test module;

[0024] Figure 9 is the structural view of the fixing seat on the test module;

[0025] Figure 10 is the structural view of the module flip cover plate on the test module. DETAILED DESCRIPTION

[0026] As Figure 1 and Figure 2As shown in the embodiment, the utility model discloses an electric control box module 1, a carrier plate module 2, a backboard module 3 and a test module 4, the carrier plate module 2 fixedly cooperated in the electric control box module 1 top surface, the backboard module 3 fixedly cooperated in the carrier plate module 2, test keyboard 5 is divided into knock end and bending support end, the knock end with the bending support end is through the rotation shaft cooperation, the knock end limit cooperation in the carrier plate module 2, the bending support end with backboard module 3 limit cooperation, test module 4 limit cooperation in backboard module 3, test module 4 with the knock end limit cooperation on test keyboard 5. It can be seen from this that the electric control box module 1 plays the role of placing test board, the power supply of equipment, also supports and limits the carrier plate module 2, the carrier plate module 2 plays the role of supporting and limiting the knock end on the backboard module 3 and test keyboard 5, the backboard module 3 plays the role of supporting and limiting the bending support end on test module 4 and test keyboard 5, and test module 4 plays the role of needle contact test on test keyboard 5.

[0027] As Figure 3 As shown in the embodiment, the carrier plate module 2 includes a large carrier plate 20 and a small carrier plate 21, the small carrier plate 21 is fixedly fitted on the large carrier plate 20, the small carrier plate 21 is provided with a product limiting assembly, a plurality of limiting assembly mounting holes and a horizontal profiling groove, the product limiting assembly is fixedly fitted on the limiting assembly mounting hole, the knock end of the test keyboard 5 is limitedly fitted with the product limiting assembly and the horizontal profiling groove respectively, and a plurality of positioning pins 24 are arranged on the large carrier plate 20. It can be seen from this that the large carrier plate 20 plays the role of limiting on the top surface of the electric control box module 1, and also plays the role of supporting and fixing the small carrier plate 21, the small carrier plate 21 plays the role of supporting and fixing the plurality of limiting assembly mounting holes and the horizontal profiling groove, the hard limiting block 22 plays the role of limiting the knock end of the test keyboard 5, and the plurality of limiting assembly mounting holes play the roles of supporting and fixing the product limiting assembly, so that the product limiting assembly can select the appropriate limiting assembly mounting hole when facing different specifications of products, thereby achieving the purpose of limiting different products, and the horizontal profiling groove plays the roles of guiding and limiting the knock end of the test keyboard 5, so that the knock end of the test keyboard 5 is limited in the horizontal direction by the small carrier plate 21 when being placed.

[0028] As Figures 8 to 10As shown, in this embodiment, the test module 4 includes a fixed base 40, a base 41, several first magnetic blocks 42, a large rotating shaft 43, a module flip-top 44, a PCBA conversion board 45, test probes 46, several second magnetic blocks 47, and a module handle 48. The test module 4 is positioned on the backplate module 3 by the fixed base 40. The several first magnetic blocks 42 and the large rotating shaft 43 are both positioned on the base 41. The base 41 is fixedly engaged with the fixed base 40. The module flip-top 44 is connected to the backplate module 3 by the large rotating shaft 43. The base 41 is rotatably engaged. Several torsion springs 49 are provided on the large rotating shaft 43. The two sides of the torsion springs 49 are limited and engaged with the base 41 and the module flip plate 44. The PCBA conversion board 45 and several second magnetic blocks 47 are fixedly engaged on the module flip plate 44. Several second magnetic blocks 47 and several first magnetic blocks 42 are engaged. The test probe 46 is fixedly engaged on the PCBA conversion board 45. The test probe 46 contacts and engages with the test keyboard 5. The module flip plate 44 is connected and engaged with the module handle 48. Therefore, the fixing base 40 serves to limit the test module 4 to the backplate module 3, allowing the test module 4 to slide up and down, facilitating the testing probe 46 to test the product. Simultaneously, the fixing base 40 also supports and fixes the base 41, which in turn supports and limits the plurality of first magnets 42 and the large rotating shaft 43. The module flip cover 44 supports and fixes the PCBA conversion board 45, the plurality of second magnets 47, and the module handle 48. The large rotating shaft 43 provides support for the module... The flip cover plate serves to rotate and engage with the base 41. The torsion spring 49 keeps the module flip cover plate 44 in an open state. Several first magnets 42 engage with second magnets 47 to keep the module flip cover plate 44 in a closed state. The PCBA conversion board 45 converts the signals during product testing. At the same time, the PCBA conversion board 45 fixes the test probe 46, which performs the testing on the product. The module handle 48 facilitates the operator's flipping operation.

[0029] like Figure 9 As shown, in this embodiment, the product limiting component includes a hard limiting block 22 and a plurality of soft limiting blocks 23. The hard limiting block 22 and the plurality of soft limiting blocks 23 are all fixedly fitted onto the limiting component mounting hole, and the hard limiting block 22 and the plurality of soft limiting blocks 23 respectively limit the striking end. Therefore, the limiting component mounting hole provides support and fixation for the hard limiting block 22 and the plurality of soft limiting blocks 23, and the hard limiting block 22 and the plurality of soft limiting blocks 23 all limit the striking end of the test keyboard 5.

[0030] As Figures 4 to 7 shown in the embodiment, the back plate module 3 comprises a back plate base assembly 30, a lifting assembly 31 and a turnover assembly 32, the back plate base assembly 30 is fixedly matched on the large carrier plate 20, the lifting assembly 31 is limitingly matched at the top end of the back plate base assembly 30, the turnover assembly 32 is limitingly matched at the top end of the lifting assembly 31, and the turnover assembly 32 is limitingly matched with the bent support end of the test keyboard 5. It can be seen that the back plate base assembly 30 supports and moves the lifting assembly 31 and the turnover assembly 32, the lifting assembly 31 lifts the turnover assembly 32 and the carrier plate module, the turnover assembly 32 turns the angle, and also limits the bent support end of the test keyboard 5.

[0031] As Figure 5 shown in the embodiment, the back plate base assembly 30 comprises a fixed bottom plate 300, a linear guide rail 301, a triangular knob 302, a screw element 303, a sliding block 304, a screw fixed seat 305 and a lower back plate 306, the fixed bottom plate 300 is fixedly matched on the large carrier plate 20, the linear guide rail 301, the screw fixed seat 305 and the lower back plate 306 are all fixedly matched on the fixed bottom plate 300, the lower back plate 306 is limitingly matched with the test keyboard 5, the screw element 303 is limitingly matched on the screw fixed seat 305, one end of the screw element 303 is connected and matched with the triangular knob 302, the other end of the triangular knob 302 is threadedly matched with the sliding block 304, the sliding block 304 is slidingly matched on the linear guide rail 301, the sliding block 304 is provided with an inclined slot 305, and the inclined slot 305 is slidingly matched with the lifting assembly 31. It can be seen that the fixed bottom plate 300 supports and fixes the linear guide rail 301 and the screw fixed seat 305, the linear guide rail 301 guides and provides sliding for the sliding block 304, the screw fixed seat 305 limits the screw element 303, the screw element 303 drives the sliding block 304 to move left and right, so that the inclined slot 305 on the sliding block 304 is slidingly matched with the cam follower wheel 317, the function of lifting is realized, the lower back plate 306 supports and limits the area near the rotating shaft of the test keyboard 5, and the triangular knob 302 facilitates the operator to twist the screw element 303.

[0032] As Figure 6As shown, in the embodiment, the lifting assembly 31 comprises a plurality of support columns 310, a plurality of linear bearings 311, a lifting moving plate 312, a fixed top plate 313, a plurality of long screws 314, a short screw 315, a follower fixed plate 316 and a cam follower 317, the plurality of linear bearings 311 are fixedly matched on the lifting moving plate 312, the follower fixed plate 316 is fixedly matched on the lower surface of the lifting moving plate 312, the cam follower 317 is fixedly matched on the follower fixed plate 316, the cam follower 317 is matched with the inclined slot 305, the two ends of the plurality of support columns 310 are fixedly matched with the fixed top plate 313 and the fixed bottom plate 300 respectively, the plurality of support columns 310 are slidingly matched with the plurality of linear bearings 311, the short screw 315 is threadedly matched on the fixed top plate 313, one end of the short screw 315 is limitingly matched with the lifting moving plate 312, and the plurality of long screws 314 are fixedly matched with the lifting moving plate 312 by penetrating the fixed top plate 313. As can be seen, the plurality of support columns 310 support the lifting assembly 31, and drive the lifting moving plate 312 to realize the lifting function in cooperation with the plurality of linear bearings 311, the linear bearings 311 guide and slide the support columns 310 to reduce the resistance during lifting, the lifting moving plate 312 supports and fixes the plurality of linear bearings 311 and the follower fixed plate 316, the follower fixed plate 316 supports and fixes the cam follower 317, the cam follower 317 is matched with the inclined slot 305 to realize the lifting function, the plurality of long screws 314 connect the lifting moving plate 312 and the fixed top plate 313, and also keep the locking function, and the short screw 315 limits the lifting moving plate 312.

[0033] As Figure 7As shown in the figure, in this embodiment, the overturning assembly 32 comprises a pair of connecting fixed plates 320, a pair of small rotating shafts 321, a pair of rotating plates 322, a pair of locking knobs 323 and a back plate element 324, the pair of connecting fixed plates 320 are fixedly matched on the two sides of the lifting moving plate 312 respectively, the pair of rotating plates 322 are rotationally matched with the connecting fixed plates 320 through the small rotating shafts 321 respectively, the pair of locking knobs 323 are arranged on the rotating plates 322 respectively, the locking knobs 323 are limitingly matched with the rotating plates 322, and the two ends of the back plate element 324 are connected and matched with the pair of rotating plates 322 respectively. Thus, it can be seen that the left and right ends of the lifting moving plate 312 play a supporting and fixing role for the pair of connecting fixed plates 320, the connecting fixed plates 320 play a supporting and limiting role for the rotating plates 322 through the small rotating shafts 321, the small rotating shafts 321 play a rotating role for the rotating plates 322, and the pair of rotating plates 322 play a supporting and limiting role for the pair of locking knobs 323 and the back plate element 324, and the locking knobs 323 play a locking and limiting role for the rotating plates 322.

[0034] As shown in the figure, Figure 4 In this embodiment, the rotating plate 322 is provided with a scale line 88, the connecting fixed plate 320 is provided with a pointer 99, and the pointer 99 is matched with the scale line 88. Thus, it can be seen that the rotating plate 322 plays a supporting and limiting role for the scale line 88, the connecting fixed plate 320 plays a supporting and limiting role for the pointer 99, the pointer 99 plays a indicating role for the scale line 88, and the scale line 88 plays a role of displaying a rotating angle.

[0035] As shown in the figure, Figure 7 In this embodiment, the back plate element 324 is provided with a vertical profiling groove, a plurality of limiting installation holes, and a plurality of soft limiting blocks 23, the soft limiting blocks are fixedly matched on the limiting installation holes, the bending support end is limitingly matched in the vertical profiling groove, and the soft limiting blocks are limitingly matched with the back plate element 324. Thus, it can be seen that the back plate element 324 plays a supporting and fixing role for the vertical profiling groove and the plurality of limiting installation holes, the plurality of limiting installation holes play a supporting and fixing role for the plurality of soft limiting blocks 23, so that when the plurality of soft limiting blocks 23 face different specifications of products, the appropriate limiting installation holes can be selected, thereby achieving the purpose of limiting different products, and the vertical profiling groove plays a guiding and limiting role for the bending support end of the test keyboard 5, so that the bending support end of the test keyboard 5 is limited in the vertical direction by the back plate element 324 when being put in.

[0036] In this embodiment, the working principle of this utility model is as follows:

[0037] like Figures 1 to 10 As shown, the operator adjusts the required angle and height of the product using the backplate module 3, and then places the test keyboard 5 on the small carrier board 21 for positioning. The test keyboard 5 also cooperates with the backplate element 325 for positioning. Then, the backplate element 325 and the test module 4 are flipped over, and the test module 4 quickly performs a pin test on the test keyboard 5. The test electrical signal in the test keyboard 5 is transmitted to the test board inside the electrical control box module 1 through the PCBA conversion board 45 for functional testing.

[0038] Although the embodiments of this utility model are described with reference to actual solutions, they do not constitute a limitation on the meaning of this utility model. For those skilled in the art, modifications to the implementation schemes and combinations with other schemes based on this specification are obvious.

Claims

1. A testing device for a tablet computer keyboard, characterized in that: It includes electric control box module (1), carrier plate module (2), back plate module (3) and test module (4), the carrier plate module (2) is fixedly matched on the top surface of the electric control box module (1), the back plate module (3) is fixedly matched on the carrier plate module (2), test keyboard (5) is divided into knock end and bending support end, the knock end and the bending support end are matched through rotating shaft, the knock end is limitingly matched on the carrier plate module (2), the bending support end is limitingly matched with the back plate module (3), the test module (4) is limitingly matched on the back plate module (3), the test module (4) is limitingly matched with the knock end on the test keyboard (5).

2. The test apparatus for a tablet keyboard of claim 1, wherein: The carrier plate module (2) includes large carrier plate (20) and small carrier plate (21), the small carrier plate (21) is fixedly matched on the large carrier plate (20), the small carrier plate (21) is provided with product limiting assembly, a plurality of limiting assembly mounting holes and horizontal profiling groove, the product limiting assembly is fixedly matched on the limiting assembly mounting hole, the knock end of the test keyboard (5) is limitingly matched with the product limiting assembly and the horizontal profiling groove respectively, the large carrier plate (20) is provided with a plurality of positioning pins (24), a plurality of the positioning pins (24) are limitingly matched with the back plate module (3).

3. The test apparatus for a tablet keyboard of claim 1, wherein: The test module (4) includes fixing seat (40), base (41), a plurality of first magnetic blocks (42), large rotating shaft (43), module flip cover plate (44), PCBA conversion plate (45), test needle (46), a plurality of second magnetic blocks (47) and module handle (48), the test module (4) is limitingly matched on the back plate module (3) through the fixing seat (40), a plurality of first magnetic blocks (42) and the large rotating shaft (43) are limitingly matched on the base (41), the base (41) is fixedly matched with the fixing seat (40), the module flip cover plate (44) is rotationally matched with the base (41) through the large rotating shaft (43), the large rotating shaft (43) is provided with a plurality of torsional springs (49), the torsional springs (49) are limitingly matched with the base (41) and the module flip cover plate (44) on both sides, the PCBA conversion plate (45), a plurality of the second magnetic blocks (47) are fixedly matched on the module flip cover plate (44), a plurality of the second magnetic blocks (47) are matched with a plurality of the first magnetic blocks (42), the test needle (46) is fixedly matched on the PCBA conversion plate (45), the test needle (46) is contactly matched with the test keyboard (5), the module flip cover plate (44) is connectedly matched with the module handle (48).

4. The test apparatus for a tablet keyboard of claim 2, wherein: The product limiting assembly includes hard limiting block (22) and a plurality of soft limiting blocks (23), the hard limiting block (22) and a plurality of the soft limiting blocks (23) are fixedly matched on the limiting assembly mounting hole, the hard limiting block (22) and a plurality of the soft limiting blocks (23) are limitingly matched with the knock end respectively.

5. The test apparatus for a tablet keyboard of claim 2, wherein: The back plate module (3) comprises a back plate base assembly (30), a lifting assembly (31) and a turnover assembly (32), the back plate base assembly (30) is fixedly matched on the large carrier plate (20), the lifting assembly (31) is limitingly matched at the top end of the back plate base assembly (30), and the turnover assembly (32) is limitingly matched at the top end of the lifting assembly (31).

6. The test apparatus for a tablet keyboard of claim 5, wherein: The back plate base assembly (30) comprises a fixed bottom plate (300), a linear guide rail (301), a triangular knob (302), a screw element (303), a sliding block (304), a screw fixing seat (305) and a lower back plate (306), the fixed bottom plate (300) is fixedly matched on the large carrier plate (20), the linear guide rail (301), the screw fixing seat (305) and the lower back plate (306) are all fixedly matched on the fixed bottom plate (300), the lower back plate (306) is limitingly matched with the test keyboard (5), the screw element (303) is limitingly matched on the screw fixing seat (305), one end of the screw element (303) is connected and matched with the triangular knob (302), the other end of the triangular knob (302) is threadedly matched with the sliding block (304), the sliding block (304) is slidingly matched on the linear guide rail (301), and an inclined slot (305) is arranged on the sliding block (304) and slidingly matched with the lifting assembly (31).

7. The test apparatus for a tablet keyboard of claim 6, wherein: The lifting assembly (31) comprises a plurality of support columns (310), a plurality of linear bearings (311), a lifting moving plate (312), a fixed top plate (313), a plurality of long screws (314), a short screw (315), a follow-up wheel fixing plate (316) and a cam follow-up wheel (317), the plurality of linear bearings (311) are all fixedly matched on the lifting moving plate (312), the follow-up wheel fixing plate (316) is fixedly matched on the lower surface of the lifting moving plate (312), the cam follow-up wheel (317) is fixedly matched on the follow-up wheel fixing plate (316), the cam follow-up wheel (317) is matched with the inclined slot (305), the two ends of the plurality of support columns (310) are respectively fixedly matched with the fixed top plate (313) and the fixed bottom plate (300), the plurality of support columns (310) are slidingly matched with the plurality of linear bearings (311), the short screw (315) is threadedly matched on the fixed top plate (313), one end of the short screw (315) is limitingly matched with the lifting moving plate (312), and the plurality of long screws (314) are fixedly matched with the lifting moving plate (312) in a threaded manner through the fixed top plate (313).

8. The test apparatus for a tablet keyboard of claim 7, wherein: The turnover assembly (32) comprises a pair of connecting fixed plates (320), a pair of small rotating shafts (321), a pair of rotating plates (322), a pair of locking knobs (323) and a back plate element (324), the pair of connecting fixed plates (320) are fixedly matched on the two sides of the lifting moving plate (312) respectively, the pair of rotating plates (322) are rotationally matched with the connecting fixed plates (320) through the small rotating shafts (321) respectively, the pair of locking knobs (323) are arranged on the rotating plates (322) respectively, the locking knobs (323) are limitingly matched with the rotating plates (322), and the two ends of the back plate element (324) are connected and matched with the pair of rotating plates (322) respectively.

9. The test apparatus for a tablet keyboard of claim 8, wherein: A scale line (88) is arranged on the rotating plate (322), and a pointer (99) is arranged on the connecting fixed plate (320), and the pointer (99) is matched with the scale line (88).

10. The test apparatus for a tablet keyboard of claim 8, wherein: A vertical profiling groove, a plurality of limiting installation holes and a plurality of soft limiting blocks (23) are arranged on the back plate element (324), the soft limiting blocks are fixedly matched on the limiting installation holes, the bending support end is limitingly matched on the vertical profiling groove, and the soft limiting blocks are limitingly matched with the back plate element (324).

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