Cold and hot impact test box with operation screen protection structure

Abstract

The utility model discloses a cold and hot shock test box with an operation screen protection structure, which comprises a test box, a low-temperature box and a high-temperature box are arranged on the inner wall of the test box, the low-temperature box is communicated with the high-temperature box, a lifting frame is jointly arranged in the inner cavity of the high-temperature box and the inner cavity of the low-temperature box, a touch screen is arranged on the surface of the test box, and the touch screen is connected with the operation screen protection structure. And a carrier block is fixedly mounted on the surface of the test box through a bolt. According to the touch screen protection device, the clamping block is shifted to be separated from the second gear, the protection curtain is held and pulled to be unwound at the moment, then the protection curtain drives the rotating rod and the second shaft rod to rotate, the second shaft rod drives the second gear and the first shaft rod to rotate through the first gear, then the first shaft rod drives the coil spring to deform, and meanwhile the protection curtain shields the outer side of the touch screen; therefore, the electronic touch screen on the surface of the test box body can be shielded and protected, the situation that the electronic touch screen is damaged due to collision of foreign objects is avoided, and the purpose of protecting the electronic touch screen is improved.

Description

Technical Field

[0001] This utility model belongs to the field of circuit board testing technology, and in particular relates to a thermal shock test chamber equipped with an operating screen protection structure. Background Technology

[0002] Thermal shock test chambers are essential testing equipment in the metal, plastic, rubber, and electronics industries. They are used to test the degree to which material structures or composite materials can withstand continuous exposure to extremely high and low temperatures in an instant. They can detect chemical changes or physical damage to samples caused by thermal expansion and contraction in the shortest possible time. Thermal shock tests are required on circuit boards after production.

[0003] Circuit board thermal shock test chambers are equipped with electronic control panels on their surfaces, allowing users to control the chamber via touch. However, these touchscreens are often exposed and may be scratched or damaged by external objects when not in use. Therefore, a thermal shock test chamber with a protective structure for the control panel is needed to shield and protect the electronic touchscreen on the test chamber surface, preventing damage from impacts and thus improving the protection of the touchscreen. Utility Model Content

[0004] The purpose of this utility model is to provide a thermal shock test chamber equipped with an operating screen protection structure, which shields and protects the electronic touch screen on the surface of the test chamber to prevent damage caused by external objects, thereby improving the protection of the electronic touch screen and solving the technical problems mentioned in the background art.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A thermal shock test chamber equipped with an operating screen protection structure includes a test chamber: a low-temperature chamber and a high-temperature chamber are installed on the inner wall of the test chamber, the low-temperature chamber and the high-temperature chamber are connected, a lifting frame is installed in the inner cavity of the high-temperature chamber and the low-temperature chamber, a touch screen is installed on the surface of the test chamber, a carrier block is fixedly installed on the surface of the test chamber by bolts, a vertical rod is fixedly connected to the surface of the carrier block, an ear block is welded to the surface of the vertical rod, and a rotating rod is rotatably connected to the inner wall of the ear block. The surface of the rod is wrapped with a protective curtain. An L-shaped plate is fixedly connected to the surface of the vertical rod. A U-shaped frame is fixedly connected to the inner wall of the L-shaped plate. A shaft 1 and a shaft 2 are rotatably connected to the inner wall of the U-shaped frame. A gear 1 is fixedly connected to the surface of shaft 2. A gear 2 is fixedly connected to the end of shaft 1 through a flange. A coil spring is fixedly connected between the surface of shaft 1 and the inner wall of the U-shaped frame. A shaft 3 is rotatably connected to the inner wall of the U-shaped frame. A locking block is fixedly connected to the surface of shaft 3. A spring is fixedly connected between the locking block and the inner wall of the U-shaped frame.

[0006] Preferably, a guide rod is fixedly connected to the surface of the lifting frame, the bottom end of the guide rod extends into the inner cavity of the low-temperature chamber, and the surface of the guide rod is slidably connected to the high-temperature chamber and the low-temperature chamber.

[0007] Preferably, the surface of the vertical rod is fixedly connected with a guide groove, and the inner cavity of the guide groove is adapted to the thickness of the curtain.

[0008] Preferably, the end of the second shaft passes through the L-shaped plate and is fixedly connected to the rotating rod.

[0009] Preferably, the second gear meshes with the first gear, and the spring engages with the second gear.

[0010] Preferably, the surface of the card block has a frosted finish.

[0011] The beneficial effects of this utility model are:

[0012] 1. This utility model disengages the latch from the gear 2 by moving the latch block. At this time, the curtain is pulled to unroll it, and the curtain drives the rotating rod and shaft 2 to rotate. Thus, shaft 2 drives gear 2 and shaft 1 to rotate through gear 1. In turn, shaft 1 causes the coil spring to deform. At the same time, the curtain covers the outside of the touch screen, thus achieving the purpose of shielding and protecting the electronic touch screen on the surface of the test chamber, avoiding damage caused by external objects, and thus improving the protection of the electronic touch screen.

[0013] 2. This utility model limits the vertical movement of the lifting frame by setting a guide rod, thus preventing the guide rod from shaking during movement and ensuring the stability of the guide rod during movement.

[0014] 3. This utility model uses guide grooves to limit and guide the falling of the curtain, thus avoiding insufficient positional stability when the curtain covers the outside of the touch screen.

[0015] 4. By setting a frosted surface, this utility model increases the friction of the card block surface, thus avoiding the situation of slipping when directly holding and moving the card block. Attached Figure Description

[0016] in:

[0017] Figure 1 This is a schematic diagram of the structure of one embodiment of the present utility model;

[0018] Figure 2 This is one embodiment of the present utility model. Figure 1 A magnified view of point A in the middle;

[0019] Figure 3 This is one embodiment of the present utility model. Figure 1A magnified view of point B in the middle;

[0020] Figure 4 This is a three-dimensional schematic diagram of a card block and a spring according to an embodiment of the present invention.

[0021] The attached diagram lists the components represented by each number as follows:

[0022] 1. Test chamber, 2. Low temperature chamber, 3. High temperature chamber, 4. Lifting frame, 5. Guide rod, 6. Touch screen, 7. Carrier block, 8. Vertical rod, 9. Ear block, 10. Rotating rod, 11. Curtain, 12. Guide groove, 13. L-shaped plate, 14. U-shaped frame, 15. Shaft rod one, 16. Shaft rod two, 17. Gear one, 18. Gear two, 19. Coil spring, 20. Shaft rod three, 21. Clamping block, 22. Spring, 23. Frosted surface. Detailed Implementation

[0023] In the following description, embodiments of the thermal shock test chamber of the present invention, equipped with an operation panel protection structure, will be described with reference to the accompanying drawings. Example 1

[0024] Figure 1-4This invention illustrates a thermal shock test chamber equipped with an operating screen protection structure according to an embodiment of the present invention. The chamber includes a test chamber 1. A low-temperature chamber 2 and a high-temperature chamber 3 are installed on the inner wall of the test chamber 1. The low-temperature chamber 2 and the high-temperature chamber 3 are connected. A lifting frame 4 is installed in the inner cavity of both the high-temperature chamber 3 and the low-temperature chamber 2. A guide rod 5 is fixedly connected to the surface of the lifting frame 4. The bottom end of the guide rod 5 penetrates into the inner cavity of the low-temperature chamber 2. The surface of the guide rod 5 is slidably connected to the high-temperature chamber 3 and the low-temperature chamber 2. The guide rod 5 limits the vertical movement of the lifting frame 4, preventing wobbling during movement and ensuring stability. A touch screen 6 is installed on the surface of the test chamber 1. A carrier block 7 is bolted to the surface of the test chamber 1. A vertical rod 8 is fixedly connected to the surface of the carrier block 7. Ear blocks 9 are welded to the surface of the vertical rod 8. A rotating rod 10 is rotatably connected to the inner wall of the ear blocks 9. A protective curtain 11 is wrapped around the surface of the rotating rod 10. A guide groove 12 is fixedly connected to the surface of the vertical rod 8. The inner cavity of the guide groove 12 is adapted to the thickness of the curtain 11. The guide groove 12 limits and guides the falling of the curtain 11, avoiding insufficient positional stability when the curtain 11 covers the outside of the touch screen 6. An L-shaped plate 13 is fixedly connected to the surface of the vertical rod 8. A U-shaped frame 14 is fixedly connected to the inner wall of the L-shaped plate 13. A shaft 15 and a shaft 16 are rotatably connected to the inner wall of the U-shaped frame 14. Gear 17 is fixedly connected to the surface of the shaft 16. The end of shaft 16 passes through L-shaped plate 13 and is fixedly connected to rotating rod 10. Gear 18 is fixedly connected to the end of shaft 15 through flange. Coil spring 19 is fixedly connected between the surface of shaft 15 and the inner wall of U-shaped frame 14. Shaft 20 is rotatably connected to the inner wall of U-shaped frame 14. Locking block 21 is fixedly connected to the surface of shaft 20. Spring 22 is fixedly connected between locking block 21 and the inner wall of U-shaped frame 14. Example 2

[0025] Figure 1-4This invention illustrates a thermal shock test chamber equipped with an operating screen protection structure according to an embodiment of the present invention. The chamber includes a test chamber 1. A low-temperature chamber 2 and a high-temperature chamber 3 are installed on the inner wall of the test chamber 1. The low-temperature chamber 2 and the high-temperature chamber 3 are connected. A lifting frame 4 is installed in the inner cavity of both the high-temperature chamber 3 and the low-temperature chamber 2. A touch screen 6 is installed on the surface of the test chamber 1. A carrier block 7 is bolted to the surface of the test chamber 1. A vertical rod 8 is fixedly connected to the surface of the carrier block 7. Ear blocks 9 are welded to the surface of the vertical rod 8. A rotating rod 10 is rotatably connected to the inner wall of the ear blocks 9. A protective curtain 11 is wrapped around the surface of the rotating rod 10. An L-shaped plate 13 is fixedly connected to the surface of the vertical rod 8. A U-shaped frame 14 is fixedly connected to the inner wall of the L-shaped plate 13. A shaft is rotatably connected to the inner wall of the U-shaped frame 14. 15 and shaft 2 16, shaft 2 16 is fixedly connected to gear 17, shaft 15 is fixedly connected to gear 2 18 through flange, gear 2 18 meshes with gear 17, spring 22 engages with gear 2 18, shaft 15 is fixedly connected to the inner wall of U-shaped frame 14 and coaxial spring 19, shaft 3 20 is rotatably connected to the inner wall of U-shaped frame 14, shaft 3 20 is fixedly connected to the surface of shaft 3 20 and spring 22 is fixedly connected to the inner wall of U-shaped frame 14, and the surface of the clamp 21 is frosted with a frosted surface 23. The frosted surface 23 increases the friction of the surface of the clamp 21 and prevents the hand from slipping when directly holding and turning the clamp 21.

[0026] Working principle: When using this invention, the user disengages the locking block 21 from the gear 18, and then pulls the curtain 11 to unroll it. The curtain 11 then rotates the rotating rod 10 and the shaft 16. The shaft 16, through the gear 17, drives the gear 18 and the shaft 15 to rotate. The shaft 15 then deforms the coil spring 19. Simultaneously, the curtain 11 covers the outside of the touchscreen 6. To operate the touchscreen 6, pressing the locking block 21 causes the spring 22 to deform and disengage from the gear 18. When spring 18 engages, the rebound force of spring 19 drives gear 18 to rotate via shaft 15. Referring to the above steps, it can be seen that rotating rod 10 drives rotating rod 10 to rewind, and then the touch screen 6 can be operated. By changing the position of the circuit board in the low temperature chamber 2 and high temperature chamber 3 through lifting frame 4, temperature difference test can be performed on the circuit board. This achieves shielding and protection of the electronic touch screen on the surface of the test chamber, avoiding damage caused by foreign objects, and thus improving the protection effect of the electronic touch screen.

[0027] In summary, this thermal shock test chamber equipped with an operating screen protection structure, by disengaging the latch 21 from the gear 18, allows the hand to pull the curtain 11 to unroll. The curtain 11 then drives the rotating rod 10 and shaft 16 to rotate. Shaft 16, through gear 17, drives gear 18 and shaft 15 to rotate. Shaft 15 then causes the coil spring 19 to deform. Simultaneously, the curtain 11 shields the outside of the touchscreen 6, thus protecting the electronic touchscreen on the test chamber surface from damage caused by external impacts, thereby improving the protection of the electronic touchscreen.

Claims

1. A thermal shock test chamber equipped with an operating panel protection structure, characterized in that, The test chamber (1) includes a low-temperature chamber (2) and a high-temperature chamber (3) installed on its inner wall. The low-temperature chamber (2) is connected to the high-temperature chamber (3). The inner cavities of the high-temperature chamber (3) and the low-temperature chamber (2) are equipped with a lifting frame (4). A touch screen (6) is installed on the surface of the test chamber (1). A carrier block (7) is fixedly installed on the surface of the test chamber (1) by bolts. A vertical rod (8) is fixedly connected to the surface of the carrier block (7). An ear block (9) is welded to the surface of the vertical rod (8). A rotating rod (10) is rotatably connected to the inner wall of the ear block (9). A curtain (11) is wrapped around the surface of the rotating rod (10). An L-shaped plate (1) is fixedly connected to the surface of the vertical rod (8). 3) The inner wall of the L-shaped plate (13) is fixedly connected to a U-shaped frame (14). The inner wall of the U-shaped frame (14) is rotatably connected to a shaft one (15) and a shaft two (16). The surface of the shaft two (16) is fixedly connected to a gear one (17). The end of the shaft one (15) is fixedly connected to a gear two (18) through a flange. The surface of the shaft one (15) and the inner wall of the U-shaped frame (14) are both fixedly connected to a coil spring (19). The inner wall of the U-shaped frame (14) is rotatably connected to a shaft three (20). The surface of the shaft three (20) is fixedly connected to a locking block (21). The locking block (21) and the inner wall of the U-shaped frame (14) are fixedly connected to a spring (22).

2. The thermal shock test chamber equipped with an operating panel protection structure according to claim 1, characterized in that, The lifting frame (4) is fixedly connected to a guide rod (5), the bottom end of which penetrates into the inner cavity of the low temperature chamber (2), and the surface of the guide rod (5) is slidably connected to the high temperature chamber (3) and the low temperature chamber (2).

3. A thermal shock test chamber equipped with an operation panel protection structure according to claim 2, characterized in that, The surface of the vertical rod (8) is fixedly connected with a guide groove (12), and the inner cavity of the guide groove (12) is adapted to the thickness of the curtain (11).

4. A thermal shock test chamber equipped with an operation panel protection structure according to claim 3, characterized in that, The end of the shaft (16) passes through the L-shaped plate (13) and is fixedly connected to the rotating rod (10).

5. A thermal shock test chamber equipped with an operation panel protection structure according to claim 4, characterized in that, The second gear (18) meshes with the first gear (17), and the spring (22) engages with the second gear (18).

6. A thermal shock test chamber equipped with an operation panel protection structure according to claim 5, characterized in that, The surface of the card block (21) is frosted (23).

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