Keyboard bottom plate stress detection device

Abstract

This utility model discloses a keyboard base plate force detection device. The device includes: a base, a placement box on top of the base, a mounting bracket on the upper part of the base near the outer side of the placement box, a detection plate between the mounting brackets, a connecting plate above the detection plate, a support plate inside the placement box, and a set of second electric push rods inside the base, the top ends of the second electric push rods penetrating the placement box and connecting the support plate. The keyboard base plate force detection device provides this utility model uses the second electric push rods to push the support plate upwards, automatically pushing the base plate out of the placement box. Then, it activates a first electric push rod to push the push plate horizontally, thereby moving the raised base plate to one side. Simultaneously, a conveyor roller moves the base plate to the next step, achieving automatic ejection of the keyboard base plate after detection, further improving the detection efficiency of the device.

Description

Technical Field

[0001] This utility model relates to the field of keyboard testing technology, and in particular to a keyboard base plate force testing device. Background Technology

[0002] A keyboard is a device used to input instructions and data for operating equipment. It also refers to a set of function keys arranged by a system to operate a machine or device, such as a typewriter or computer keyboard. The keyboard is the most commonly used and primary input device, allowing users to input English letters, numbers, punctuation marks, etc., into a computer, thereby issuing commands and inputting data. During the keyboard manufacturing process, various components, including the keyboard base plate, undergo multiple tests. Strength and stress testing of the keyboard base plate is one part of the testing process.

[0003] Utility model patent application number 201921625943.8 discloses a keyboard base plate detection device. This device uses a servo motor to drive a screw to rotate during keyboard base plate detection, which in turn moves a moving block on the side of the screw downwards. This, in turn, moves an L-shaped fixing rod, a fixing block, and a detection post downwards until the detection post contacts the keyboard base plate to be detected. The servo motor controls the force exerted by the detection post on the keyboard base plate, making it more convenient and simpler to operate than manual detection. A first limiting rod, a first movable sleeve, and a first connecting rod are used to limit the position of the moving block and prevent axial rotation during its downward movement. However, after detection, the device cannot automatically push the keyboard out of the box; the keyboard must be manually removed, leading to decreased work efficiency.

[0004] Therefore, it is necessary to provide a keyboard base plate force detection device to solve the above-mentioned technical problems. Utility Model Content

[0005] In view of the above situation and to overcome the defects of the existing technology, this utility model provides a keyboard base plate force detection device.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A keyboard base plate force detection device includes: a base, a placement box on top of the base, a mounting bracket on the outer side of the placement box near the top of the base, a detection plate between the mounting brackets, a connecting plate on top of the detection plate, a support plate inside the placement box, a set of second electric push rods inside the base, the top ends of the second electric push rods penetrating the placement box and connecting the support plate, a pressure sensor on top of the connecting plate, a push plate on one side of the placement box, a first electric push rod on one side of the push plate, three conveying rollers on the other side of the placement box, and positioning points at the four corners above the support plate.

[0008] Preferably, the two ends of the connecting plate are slidably connected to the mounting bracket, and a cylinder is provided above the connecting plate.

[0009] Preferably, a set of sliders is provided between the two ends of the support plate and the placement box, and a groove is provided inside the placement box near the outer side of the sliders.

[0010] Preferably, the bottom of the support plate is provided with a shock-absorbing pad.

[0011] Preferably, the support plate has a groove on the outer side near the positioning point, a limit block is provided on both sides inside the groove, a limit groove is provided on the outer side of the limit block, and an electromagnet is provided above the limit block and at the top of the limit groove.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] (1) This utility model utilizes a support plate, a push plate, and a conveying roller. After the pressure sensor detects the pressure above and stops, the controller starts the second electric push rod to push the support plate upward, automatically pushing the bottom plate out of the placement box. Then, the first electric push rod is started to push the push plate horizontally, thereby moving the raised bottom plate to one side. At the same time, the conveying roller will drive the bottom plate to move to the next program, so that the keyboard bottom plate is automatically pushed out after the test is completed, avoiding the need for manual removal of the keyboard from the keyboard placement box, and further improving the testing efficiency of the device.

[0014] (2) This utility model utilizes a pressure sensor, a cylinder and a detection plate. The pressure sensor can detect the pressure. When the keyboard base plate is subjected to force detection, the cylinder is activated to drive the detection plate to move downward and apply pressure to the keyboard base plate inside the box. With the use of the pressure sensor, the force on the keyboard base plate can be monitored at any time to check whether the keyboard base plate meets the production standards.

[0015] (3) This utility model utilizes positioning points, dot grooves and electromagnets. When the keyboard base plate is placed above the support plate, the electromagnet is activated, and under the action of attraction, the limiting block automatically moves to the top of the limiting groove, and the positioning point is pushed out from the inside of the dot groove to realize the limiting and fixing of the keyboard base plate, preventing shaking during the detection process. When the detection is completed, the electromagnet is turned off, and the positioning point automatically falls back into the dot groove, which facilitates the movement of the keyboard base plate. Attached Figure Description

[0016] Figure 1 A front view schematic diagram of the keyboard base plate force detection device provided by this utility model;

[0017] Figure 2 for Figure 1 A top view of the structure of the box placed in the middle;

[0018] Figure 3 for Figure 2 A frontal sectional view of the central base and the placement box;

[0019] Figure 4 for Figure 3 A cross-sectional structural diagram of the middle support plate when it is pushed upwards;

[0020] Figure 5 for Figure 3 Enlarged view of section A.

[0021] The corresponding names of the attached figures are as follows: 1-base, 2-placement box, 3-mounting bracket, 4-connecting plate, 5-detection plate, 6-cylinder, 7-support plate, 8-transfer roller, 9-push plate, 10-first electric push rod, 11-slide groove, 12-slider, 13-shock absorber, 14-pressure sensor, 15-second electric push rod, 17-positioning point, 18-slot groove, 19-limiting groove, 20-limiting block, 21-electromagnet. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments. The embodiments of the present invention include, but are not limited to, the following embodiments. Example

[0023] like Figure 1-5As shown, the keyboard base plate force detection device provided by this utility model includes: a base 1, a placement box 2 on top of the base 1, where the keyboard base plate to be tested can be placed for subsequent force testing; a mounting bracket 3 on the upper part of the base 1 near the outer side of the placement box 2; a detection plate 5 between the mounting brackets 3; and a connecting plate 4 on top of the detection plate 5. The mounting brackets 3 and the connecting plate 4 support the detection plate 5. By applying downward pressure to the detection plate 5, the force on the keyboard base plate can be detected to check whether the base plate is subjected to excessive pressure. To address the issue of deformation under pressure and ensure the quality of keyboard base plate testing, a support plate 7 is installed inside the placement box 2. During use, the keyboard base plate is placed on the support plate 7. After testing, the support plate 7 automatically pushes the base plate upwards, facilitating subsequent operations and avoiding the need for manual removal of the base plate from the placement box 2, thus improving testing efficiency. A set of second electric push rods 15 is installed inside the base 1. The top of the second electric push rod 15 passes through the placement box 2 and connects to the support plate 7. Activating the second electric push rod 15 pushes the support plate 7 upwards. The device automatically ejects the base plate. A pressure sensor 14 is installed above the connecting plate 4. When the detection plate 5 applies downward pressure, the pressure sensor 14 detects the pressure. The device also includes a controller (MCU). When the pressure sensor 14 detects that the upward pressure has stopped, it sends a signal to the controller. The controller then activates the second electric push rod 15 to push the support plate 7 upward, automatically ejecting the base plate into the placement box 2. A push plate 9 is located on one side of the placement box 2, and a first electric push rod 10 is located on one side of the push plate 9. Three [unclear - possibly referring to a specific type of push rod] are located on the other side of the placement box 2. When the base plate is pushed out of the placement box 2, the first electric push rod 10 is activated. The first electric push rod 10 pushes the push plate 9 to move horizontally, thereby moving the raised base plate to one side. At the same time, the conveyor roller 8 will drive the base plate to the next program, so that the keyboard base plate is pushed out after the test is completed. This avoids the need to manually remove the keyboard from the keyboard placement box and further improves the testing efficiency of the device. The four corners of the support plate 7 are provided with positioning points 17. The positioning points 17 can be used to position the keyboard base plate to be tested, prevent the base plate from shaking during the test, and ensure the quality of the force test. Example

[0024] like Figure 1As shown, the two ends of the connecting plate 4 are slidably connected to the mounting bracket 3. The connecting plate 4 can drive the detection plate 5 to move up and down, ensuring the stability of the detection plate 5 and avoiding shaking. A cylinder 6 is provided above the connecting plate 4. When it is necessary to test the force on the keyboard base plate, the cylinder 6 is activated to drive the connecting plate 4 and the detection plate 5 to move downward, applying pressure to the keyboard base plate inside the placement box 2. With the use of the pressure sensor 14, it can be checked whether the keyboard base plate meets the production standards. Example

[0025] like Figure 3-4 As shown, a set of sliders 12 are provided between the two ends of the support plate 7 and the placement box 2. A groove 11 is provided inside the placement box 2 near the outer side of the sliders 12. When the second electric push rod 15 drives the support plate 7 to move up and down, the movement of the sliders 12 in the groove 11 makes the movement of the support plate 7 more stable and smooth, avoiding jamming during the pushing process. This allows the keyboard base plate above the support plate 7 to be pushed out smoothly and quickly, facilitating its use in subsequent stages. Example

[0026] like Figure 3-4 As shown, the bottom of the support plate 7 is provided with a shock-absorbing pad 13. When the detection plate 5 applies pressure to the support plate 7, the shock-absorbing pad 13 can buffer the pressure received by the support plate 7 and improve the service life of the support plate 7. Example

[0027] like Figure 3-5 As shown, the support plate 7 has a groove 18 on the outer side near the positioning point 17. When the support plate 7 pushes out the keyboard base plate, the positioning point 17 can retract into the groove 18, which facilitates the first electric push rod 10 to push the push plate 9 horizontally and push out the base plate. Limiting blocks 20 are provided on both sides inside the groove 18, and limiting grooves 19 are provided on the outer side of the limiting blocks 20. Electromagnets 21 are provided on the top of the limiting blocks 20 and the top of the limiting grooves 19. The electromagnets 21 attract each other. When the keyboard base plate is placed on the support plate 7, the electromagnets 21 are activated. Under the action of attraction, the limiting blocks 20 automatically move to the top of the limiting grooves 19, and the positioning point 17 is pushed out from the inside of the groove 18, thereby limiting and fixing the keyboard base plate and preventing shaking during the testing process. After the testing is completed, the electromagnets 21 are turned off, the limiting blocks 20 and the limiting grooves 19 are automatically disconnected, and the positioning point 17 automatically falls back into the groove 18, which facilitates the movement of the keyboard base plate.

[0028] The working principle of the keyboard base plate force detection device provided by this utility model is as follows:

[0029] In use, the keyboard base plate is placed on the support plate 7, and the electromagnet 21 is activated. Under the action of attraction, the limiting block 20 automatically moves to the top of the limiting groove 19, and the positioning point 17 is pushed out from the inside of the dot groove 18, thus fixing the keyboard base plate. Then, the cylinder 6 is activated to drive the connecting plate 4 and the detection plate 5 to move downward, applying pressure to the keyboard base plate inside the placement box 2. With the use of the pressure sensor 14, the unified force detection of the keyboard base plate is realized. After the detection is completed, the electromagnet 21 is turned off, and the limiting block 20 and the limiting groove 19 are automatically disconnected. The positioning point 17 automatically falls back into the inside of the dot groove 18. The second electric push rod 15 is activated to push the support plate 7 upward, automatically pushing the base plate out from the inside of the placement box 2. Then, the first electric push rod 10 is activated to push the push plate 9 horizontally, thus moving the raised base plate to one side. At the same time, the conveying roller 8 will drive the base plate to the next program, realizing the removal of the keyboard base plate after the detection is completed. This avoids the need for manual removal of the keyboard from the keyboard placement box and further improves the detection efficiency of the device.

[0030] The above embodiments are merely one of the preferred embodiments of this utility model and should not be used to limit the scope of protection of this utility model. Any modifications or refinements made to the main design concept and spirit of this utility model that are not of substantial significance, but solve the same technical problem as this utility model, should be included within the scope of protection of this utility model.

Claims

1. A keyboard chassis force detection device, characterized by, include: A base (1) is provided above a placement box (2). An mounting bracket (3) is provided above the base (1) near the outer side of the placement box (2). A detection plate (5) is provided between the mounting brackets (3). A connecting plate (4) is provided above the detection plate (5). A support plate (7) is provided inside the placement box (2). A set of second electric push rods (15) is provided inside the base (1). The top of the second electric push rod (15) passes through the placement box (2) and the support plate (7) and connects them. A pressure sensor (14) is provided above the connecting plate (4). A push plate (9) is provided on one side of the placement box (2). A first electric push rod (10) is provided on one side of the push plate (9). Three conveying rollers (8) are provided on the other side of the placement box (2). Positioning points (17) are provided at the four corners above the support plate (7).

2. The keyboard chassis stress detection device of claim 1, wherein, The two ends of the connecting plate (4) are slidably connected to the mounting bracket (3), and a cylinder (6) is provided above the connecting plate (4).

3. The keyboard chassis stress detection apparatus of claim 1, wherein, A set of sliders (12) is provided between the two ends of the support plate (7) and the placement box (2), and a groove (11) is provided inside the placement box (2) near the outside of the sliders (12).

4. The keyboard chassis stress detection apparatus of claim 1, wherein, The bottom of the support plate (7) is provided with a shock-absorbing pad (13).

5. The keyboard chassis stress detection apparatus of claim 1, wherein, The support plate (7) has a groove (18) on the outside of the positioning point (17) inside. Limiting blocks (20) are provided on both sides inside the groove (18). Limiting grooves (19) are provided on the outside of the limiting blocks (20). Electromagnets (21) are provided on the top of the limiting blocks (20) and the top of the limiting grooves (19).

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