Key high and low temperature durability test fixture

Abstract

The utility model discloses a key high and low temperature durability test fixture, which comprises a heating box, a heat insulation plate is fixedly arranged in the heating box, a first electric push rod is arranged on the upper end face of the heat insulation plate, the output end of the first electric push rod penetrates through the heat insulation plate and is provided with a lifting plate, and a mounting frame is arranged on the lower end face of the lifting plate. A sliding hole is formed in the lower end face of the mounting frame, a sliding block is arranged in the sliding hole in a sliding mode, a contact rod is arranged on the lower end face of the sliding block, and a limiting plate is fixedly arranged on the upper end face of the sliding block and makes contact with the upper end face of the mounting frame. Therefore, a user can adjust the position of the contact rod through the cooperation of the sliding block and the sliding hole so as to conveniently test keys at different positions, and after adjustment, the fastening nut is screwed down and the upper end of the fastening nut abuts against the anti-skid salient points on the anti-skid pad so as to fix the contact rod, thereby facilitating the proceeding of subsequent tests.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of key test, more particularly, it relates to a key high and low temperature durability test fixture. BACKGROUND

[0002] Keyboard keys are the key components of computers and electronic devices for inputting text, symbols and instructions, and they are the bridge between users and devices. The design of keyboard keys aims to provide comfortable and efficient input experience. Keyboard keys are an important part of modern computer technology, and their design and function directly affect the input experience and work efficiency of users. With the development of technology, keyboard keys are constantly innovating to meet the needs of different users. After the production of keyboard keys, test fixtures are needed to test the high and low temperature durability of the keys. The high temperature is generally 60 degrees, and the low temperature is generally 45 degrees.

[0003] However, the existing high and low temperature durability test fixture cannot flexibly adjust the knocking rod according to the position of the key to be tested, resulting in the need to frequently adjust the position of the keyboard when testing keys in different positions, which is time-consuming and laborious to operate and affects the testing efficiency.

[0004] Moreover, the existing test fixture cannot quickly discharge hot air from the inside of the fixture after use, resulting in the need to open the door to slowly discharge the hot air when testing the next keyboard key, which takes a long time to discharge the air. UTILITY MODEL CONTENT

[0005] (I) Technical problem solved

[0006] In view of the problems existing in the prior art, the utility model provides a key high and low temperature durability test fixture to solve the technical problem that the existing high and low temperature durability test fixture cannot flexibly adjust the knocking rod according to the position of the key to be tested.

[0007] (II) Technical solution

[0008] To achieve the above object, the utility model provides following technical scheme: A key high and low temperature durability test fixture, including the heating box, the inside fixed of heating box is equipped with the heat insulating plate, the upper end surface of heat insulating plate is equipped with the first electric push rod, the output of first electric push rod passes through heat insulating plate and is equipped with the lifting plate, the lower end surface of lifting plate is equipped with the mounting bracket, the lower end surface of mounting bracket is equipped with the sliding hole, the inside of sliding hole is equipped with the sliding block and slides, the lower end surface of sliding block is equipped with the contact rod, the upper end surface of sliding block is fixedly equipped with the limit board, the upper end surface of limit board and mounting bracket is in contact, the front and back of sliding hole and located the lower end surface of mounting bracket is equipped with the antiskid pad, the antiskid pad is equipped with the antiskid convex, the contact rod is equipped with the fastening nut, the fastening nut is installed with contact rod thread, the upper end of fastening nut and antiskid convex are in contact, the upper end surface of heating box is equipped with the hair dryer, the output of hair dryer is equipped with the air outlet pipe.

[0009] The utility model further sets up, the outer wall of air outlet pipe is fixedly equipped with the branch pipe, the branch pipe is equipped with a plurality of and its other end all are intercommunication with the inside of heating box, be equipped with control valve on the branch pipe, the other side of heating box is equipped with the heat dissipation hole, the heat dissipation hole is equipped with a plurality of and is linear arrangement, one side of heat dissipation hole is equipped with the moving frame, the outer wall of moving frame and heating box is in close contact, the inner wall of moving frame is equipped with the baffle, moving frame and baffle all can shield heat dissipation hole, be convenient for when testing, prevent heat loss.

[0010] The utility model further sets up, both sides of heat dissipation hole and located the outer wall of heating box are fixedly equipped with the sliding rod, moving frame and baffle all are installed with sliding rod sliding, the lower end of moving frame and located the outer wall of heating box is equipped with the second electric push rod, the output of second electric push rod and moving frame fixed connection, be convenient for the control of moving frame.

[0011] The utility model further sets up, the inner wall of heating box and located bottom is equipped with the guide cylinder, the guide cylinder is equipped with four groups and is rectangular arrangement, the inside of guide cylinder all is equipped with the guide column and slides, the upper end of guide column is fixedly equipped with the placement board, be equipped with clamping subassembly on the placement board, be convenient for the clamping fixed of the keyboard to be measured.

[0012] The utility model further sets up, the upper end surface of guide cylinder is fixedly equipped with the connecting spring, the other end of connecting spring and the lower end surface of placement board fixed connection, be convenient for the protection of keyboard.

[0013] The utility model further sets up, the rear end of heating box is equipped with heating module, be convenient for the internal temperature of heating box rises.

[0014] The utility model further sets up, the outer wall of heating case is equipped with limit block, the lower end surface of mobile frame and limit block is contacted, and it is convenient for the limit of mobile path of mobile frame.

[0015] The utility model further sets up, the front end of heating case is equipped with the door of hinge, and it is convenient for the plugging of front end of heating case.

[0016] (Three) beneficial effect

[0017] Compared with the prior art, the utility model provides a kind of key high-low temperature durability test fixture, with following beneficial effects:

[0018] 1, by setting up contact rod, non-slip pad and locking nut, so that user can make contact rod and key frequent contact by controlling first electric push rod, to realize the effect of test, and also can be adjusted to the position of contact rod by the cooperation of sliding block and sliding hole, to facilitate the test of key in different positions, after adjusting, locking nut is tightened and makes its upper end and the anti-slip convex point on non-slip pad abut, to fix contact rod, facilitate the follow-up test, by this design, it is convenient to adjust the position of contact rod, to facilitate the test of key in different positions, reduce the step of frequent clamping keyboard, increase test efficiency.

[0019] 2, by setting up hair dryer, heat dissipation hole, mobile frame and baffle, so that during testing, user can also change the temperature inside heating box by heating module, to test the durability of key in different temperature environment, after testing, second electric push rod can be controlled to make mobile frame move downward, to make mobile frame and baffle separate heat dissipation hole, at this time, opening hair dryer can make external air accelerate into heating box, and make its internal heat accelerate to discharge from heat dissipation hole, to facilitate the test of next keyboard.

[0020] 3, by setting up placing plate and connecting spring, so that when contact rod and key on keyboard frequent contact, guide column also slides back and forth in the inside of guide cylinder, to reduce the impact force received by key by the action of connecting spring, to protect keyboard, by this design, user can select appropriate coefficient spring to buffer the impact force received by keyboard, to prevent the phenomenon that key is pressed, to increase the practicability of the device when using. ACCURACY OF DRAWINGS

[0021] Figure 1 It is a kind of key high-low temperature durability test fixture whole schematic diagram in unused state;

[0022] Figure 2 It is heating box internal component installation schematic diagram;

[0023] Figure 3 Positioning view of the heating box, the heat dissipation hole, the slide rod, the limiting block and the heating module;

[0024] Figure 4 Installation explosion view of the slide block, the contact rod, the limiting plate and the fastening nut on the mounting frame;

[0025] Figure 5 Positioning view of the guiding column and the placing plate.

[0026] In the figure: 1, heating box; 2, heat insulation plate; 3, first electric push rod; 4, lifting plate; 5, mounting frame; 6, sliding hole; 7, slide block; 8, contact rod; 9, limiting plate; 10, non-slip pad; 11, non-slip convex point; 12, fastening nut; 13, hair dryer; 14, air outlet pipe; 15, branch pipe; 16, control valve; 17, heat dissipation hole; 18, moving frame; 19, baffle; 20, slide rod; 21, second electric push rod; 22, guiding cylinder; 23, guiding column; 24, placing plate; 25, connecting spring; 26, heating module; 27, limiting block; 28, box door. DETAILED DESCRIPTION

[0027] It should be noted that the embodiments and the features in the embodiments in the present application can be combined with each other without conflict. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0028] It should be noted that, unless otherwise specified, all the technical and scientific terms used in the present application have the same meaning as that generally understood by the ordinary skilled in the art to which the present application belongs.

[0029] In the present application, unless otherwise specified, the directions such as "up, down" are generally directed to the directions shown in the drawings, or are directed to the vertical, perpendicular or gravity directions; similarly, for the convenience of understanding and description, "left, right" are generally directed to the left and right shown in the drawings; "inner, outer" refer to the inner and outer relative to the contour of each component itself, but the above direction words are not used to limit the present application.

[0030] Please refer to Figures 1-5The utility model provides a button high and low temperature durability test fixture, including heating box 1, the inside fixed of heating box 1 is equipped with heat insulating plate 2, the upper end surface of heat insulating plate 2 is equipped with first electric push rod 3, and the output of first electric push rod 3 passes through heat insulating plate 2 and is equipped with lifting plate 4, the lower end surface of lifting plate 4 is equipped with mounting bracket 5, and the lower end surface of mounting bracket 5 is equipped with sliding hole 6, and the inside of sliding hole 6 is slidably equipped with sliding block 7, and the lower end surface of sliding block 7 is equipped with contact lever 8, and the upper end surface of sliding block 7 is fixedly equipped with limit plate 9, and limit plate 9 is in contact with the upper end surface of mounting bracket 5, and the front and rear sides of sliding hole 6 and located the lower end surface of mounting bracket 5 are equipped with antiskid pad 10, and antiskid pad 10 is equipped with antiskid convex point 11, and contact lever 8 is equipped with fastening nut 12, and fastening nut 12 is in threaded connection with contact lever 8, and the upper end of fastening nut 12 is in abutment with antiskid convex point 11, and the upper end surface of heating box 1 is equipped with hair dryer 13, and the output of hair dryer 13 is equipped with air outlet pipe 14, and the rear end of heating box 1 is equipped with heating module 26, and the front end of heating box 1 is hingedly equipped with box door 28.

[0031] In the embodiment, the outer wall of the air outlet pipe 14 is fixedly provided with a plurality of branch pipes 15, the other ends of the branch pipes 15 are communicated with the inside of the heating box 1, the branch pipes 15 are provided with control valves 16, the other side surface of the heating box 1 is provided with a plurality of heat dissipation holes 17 which are arranged in a linear manner, one side of the heat dissipation holes 17 is provided with a moving frame 18 which is in close contact with the outer wall of the heating box 1, the inner wall of the moving frame 18 is provided with baffles 19, the moving frame 18 and the baffles 19 can shield the heat dissipation holes 17, the two sides of the heat dissipation holes 17 and located on the outer wall of the heating box 1 are fixedly provided with sliding rods 20, the moving frame 18 and the baffles 19 are slidably installed on the sliding rods 20, the lower end of the moving frame 18 and located on the outer wall of the heating box 1 is provided with a second electric push rod 21, the output end of the second electric push rod 21 is fixedly connected with the moving frame 18.

[0032] More specifically, the user can control the first electric push rod 3 to make the contact lever 8 frequently contact with the button, so as to realize the test effect, and can also adjust the position of the contact lever 8 through the cooperation of the sliding block 7 and the sliding hole 6, so as to facilitate the test of the buttons at different positions, after adjusting, the fastening nut 12 is tightened and the upper end thereof is in abutment with the antiskid convex point 11 on the antiskid pad 10, so as to fix the contact lever 8, facilitating the subsequent test, during the test, the user can also change the temperature in the heating box 1 through the heating module 26, so as to test the durability of the button in different temperature environments, after the test is completed, the second electric push rod 21 can be controlled to move the moving frame 18 downward, so as to separate the moving frame 18 and the baffles 19 from the heat dissipation holes 17, at this time, the opening of the hair dryer 13 can make the external air enter into the heating box 1 at a high speed, and the heat in the heating box 1 can be discharged from the heat dissipation holes 17 at a high speed, so as to facilitate the test of the next keyboard.

[0033] Please refer to Figure 2 and Figure 5 , as the impact force on the keys on the keyboard buffer implementation: the inner wall of the heating box 1 and the bottom of the guide cylinder 22 is provided with four sets of rectangular arrangement, the inner guide cylinder 22 is slidably provided with a guide column 23, the upper end of the guide column 23 is fixedly provided with a placing plate 24, the placing plate 24 is provided with a clamping assembly, the upper end of the guide cylinder 22 is fixedly provided with a connecting spring 25, the other end of the connecting spring 25 is fixedly connected with the lower end surface of the placing plate 24.

[0034] Specifically, when the contact rod 8 is in frequent contact with the keys on the keyboard, the guide column 23 also slides in the guide cylinder 22 to reduce the impact force on the keys by the action of the connecting spring 25, thereby protecting the keyboard.

[0035] Please refer to Figure 1 , as the further implementation of the moving distance of the moving frame 18: the outer wall of the heating box 1 is provided with a limiting block 27, and the lower end surface of the moving frame 18 is in contact with the limiting block 27.

[0036] Specifically, when the upper end of the moving frame 18 is in contact with the limiting block 27, the heat dissipation hole 17 can be blocked at this time to prevent heat loss.

[0037] In summary, the overall equipment in use: the user can first put the keyboard to be tested on the upper end of the placing plate 24, and fix it through the clamping assembly, then the user can control the first electric push rod 3 to make the contact rod 8 in frequent contact with the keys, so as to realize the testing effect, and the position of the contact rod 8 can also be adjusted through the cooperation of the sliding block 7 and the sliding hole 6 to facilitate the testing of keys in different positions, and after adjustment, the fastening nut 12 is tightened and the upper end is in contact with the anti-slip convex point 11 on the anti-slip pad 10 to fix the contact rod 8, which is convenient for subsequent testing. During testing, the user can also change the temperature inside the heating box 1 by the heating module 26 to test the durability of the keys in different temperature environments. After testing, the second electric push rod 21 can be controlled to move the moving frame 18 downward to separate the moving frame 18 from the baffle 19 of the heat dissipation hole 17. At this time, the air conditioner 13 is opened to accelerate the entry of external air into the heating box 1 and accelerate the heat inside the heating box 1 to be discharged from the heat dissipation hole 17, so as to facilitate the testing of the next keyboard. And during testing, the guide column 23 also slides in the guide cylinder 22 to reduce the impact force on the keys by the action of the connecting spring 25, thereby protecting the keyboard.

[0038] Other parts not described in the utility model belong to the prior art, so they are not described here.

[0039] In all the above-mentioned solutions, the connection between the two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection or other known connection mode, which will not be described one by one here. In the above, whenever it is mentioned that it is fixedly connected, it is preferred to consider welding. Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A key high and low temperature durability test fixture, comprising a heating box (1), characterized in that: The inside of the heating box (1) is fixedly provided with a heat insulation plate (2), the upper end surface of the heat insulation plate (2) is provided with a first electric push rod (3), the output end of the first electric push rod (3) penetrates through the heat insulation plate (2) and is provided with a lifting plate (4), the lower end surface of the lifting plate (4) is provided with a mounting frame (5), the lower end surface of the mounting frame (5) is provided with a sliding hole (6), the inside of the sliding hole (6) is slidably provided with a sliding block (7), the lower end surface of the sliding block (7) is provided with a contact rod (8), the upper end surface of the sliding block (7) is fixedly provided with a limiting plate (9), the limiting plate (9) is in contact with the upper end surface of the mounting frame (5), the front and rear sides of the sliding hole (6) and located at the lower end surface of the mounting frame (5) are provided with anti-skid pads (10), the anti-skid pads (10) are provided with anti-skid convex points (11), the contact rod (8) is provided with a fastening nut (12), the fastening nut (12) is threadedly installed with the contact rod (8), the upper end of the fastening nut (12) is in abutment with the anti-skid convex points (11), the upper end surface of the heating box (1) is provided with a hair dryer (13), the output end of the hair dryer (13) is provided with an air outlet pipe (14).

2. The key high and low temperature durability test fixture according to claim 1, characterized in that: The outer wall of the air outlet pipe (14) is fixedly provided with branch pipes (15), the branch pipes (15) are provided with a plurality of and the other ends of the branch pipes (15) are in communication with the inside of the heating box (1), the branch pipes (15) are provided with control valves (16), the other side of the heating box (1) is provided with heat dissipation holes (17), the heat dissipation holes (17) are provided with a plurality of and are linearly arranged, one side of the heat dissipation holes (17) is provided with a moving frame (18), the moving frame (18) is in close contact with the outer wall of the heating box (1), the inner wall of the moving frame (18) is provided with a baffle (19), the moving frame (18) and the baffle (19) can shield the heat dissipation holes (17).

3. The key high and low temperature durability test fixture of claim 2, wherein: The both sides of the heat dissipation holes (17) and located on the outer wall of the heating box (1) are fixedly provided with sliding rods (20), the moving frame (18) and the baffle (19) are slidably installed with the sliding rods (20), the lower end of the moving frame (18) and located on the outer wall of the heating box (1) is provided with a second electric push rod (21), the output end of the second electric push rod (21) is fixedly connected with the moving frame (18).

4. The key high and low temperature durability test fixture of claim 1, wherein: The inner wall of the heating box (1) and located at the bottom is provided with guide cylinders (22), the guide cylinders (22) are provided with four groups and are arranged in a rectangular shape, the inside of the guide cylinders (22) is slidably provided with guide columns (23), the upper end of the guide column (23) is fixedly provided with a placing plate (24), the placing plate (24) is provided with a clamping assembly.

5. The key high and low temperature durability test fixture of claim 4, wherein: The upper end surface of the guide cylinder (22) is fixedly provided with a connecting spring (25), the other end of the connecting spring (25) is fixedly connected with the lower end surface of the placing plate (24).

6. The key high and low temperature durability test fixture of claim 1, wherein: The rear end of the heating box (1) is provided with a heating module (26).

7. The key high and low temperature durability test fixture of claim 2, wherein: The outer wall of the heating box (1) is provided with a limiting block (27), the lower end surface of the moving frame (18) is in contact with the limiting block (27).

8. The key high and low temperature durability test fixture of claim 1, wherein: The front end of the heating box (1) is hingedly provided with a box door (28).

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