Drawer type low-temperature test box

Abstract

The utility model discloses a drawer type low-temperature test box, which relates to the technical field of test boxes, and comprises a U-shaped plate fixedly arranged on the outer wall of a drawer type low-temperature test box body, the U-shaped plate is positioned below a display screen on the drawer type low-temperature test box body, a winding roller is arranged in the U-shaped plate, a dustproof cloth is wound on the winding roller, and the dustproof cloth is arranged on the outer wall of the drawer type low-temperature test box body. A movable hook-and-loop fastener is fixedly installed on one side of the dustproof cloth, two clamping grooves are formed in the two ends of the winding roller correspondingly, two sliding rods are slidably installed on the U-shaped plate, the two sliding rods are rotationally sleeved with circular plates correspondingly, and two clamping rods are fixedly installed on the two circular plates correspondingly. And one ends of the four clamping rods respectively extend into the corresponding clamping grooves. The drawer type low-temperature test box provided by the utility model has the advantage that the display screen can be prevented from dust.

Description

Technical Field

[0001] The utility model relates to the technical field of test chambers, and particularly relates to a drawer-type low-temperature test chamber. Background Art

[0002] Low-temperature test chambers are used to conduct environmental simulation tests on the physical and other related characteristics of products under low-temperature conditions according to national standard requirements or user-defined requirements, so as to determine whether the performance of the products can meet the predetermined requirements during design, in order to improve and optimize the products and manufacture products with better quality. The drawer-type low-temperature test chamber is a kind of low-temperature test chamber.

[0003] However, the display screen on the existing drawer-type low-temperature test chamber device lacks a dust-proof function. When people do not use the drawer-type low-temperature test chamber device, the display screen is exposed to the air for a long time, resulting in dust and impurities in the air adhering to the display screen, affecting the service life of the display screen. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a drawer-type low-temperature test chamber to solve at least any one of the problems mentioned in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A drawer-type low-temperature test chamber, including a U-shaped plate fixedly installed on the outer wall of the drawer-type low-temperature test chamber body, and the U-shaped plate is located below the display screen on the drawer-type low-temperature test chamber body. A winding roller is arranged inside the U-shaped plate, and a dust-proof cloth is wound around the winding roller. One side of the dust-proof cloth is fixedly installed with a movable magic tape. Two card slots are respectively opened at both ends of the winding roller. Two sliding rods are slidably installed on the U-shaped plate. Circular plates are respectively rotatably sleeved on the two sliding rods. Two clamping rods are respectively fixedly installed on the two circular plates, and one ends of the four clamping rods respectively extend into the corresponding card slots. Circular plates are respectively fixedly installed at the mutually close ends of the two sliding rods. Torsion springs are respectively movably sleeved on the two sliding rods, and one ends of the two torsion springs are respectively fixedly connected to the corresponding circular plates, and the other ends of the two torsion springs are respectively fixedly connected to the corresponding circular plates. Moving plates are respectively fixedly installed at the mutually far ends of the two sliding rods. Compression springs are respectively movably sleeved on the two sliding rods, and one ends of the two compression springs are respectively fixedly connected to the corresponding moving plates, and the other ends of the two compression springs are both fixedly connected to the U-shaped plate.

[0006] Preferably, two limiting holes are respectively opened on the outer walls of both sides of the U-shaped plate. Two limiting cross bars are respectively fixedly installed on the mutually close outer walls of the two moving plates, and one ends of the four limiting cross bars respectively extend into the four limiting holes and are respectively slidably connected to the inner walls of the four limiting holes.

[0007] Preferably, the surfaces of the torsion spring and the compression spring are both tinned.

[0008] Preferably, a fixed magic tape is fixedly installed on the outer wall of the drawer-type low-temperature test chamber body, and the fixed magic tape is located above the display screen.

[0009] Preferably, a rotating screw rod is rotatably installed on the outer wall of the drawer-type low-temperature test chamber body. An installation plate is threadedly installed on the rotating screw rod. A rubber extrusion plate is fixedly installed on one side outer wall of the installation plate close to the drawer-type low-temperature test chamber body.

[0010] Preferably, a rotating handle is fixedly installed at one end of the rotating screw rod away from the drawer-type low-temperature test chamber body.

[0011] Preferably, a limiting rod is slidably installed on the installation plate, and the limiting rod is fixedly connected to the drawer-type low-temperature test chamber body.

[0012] The beneficial effects of the present utility model are as follows: In the present utility model, people perform low-temperature tests on products through the drawer-type low-temperature test chamber body. When people do not need to use this device, they move the moving magic tape to drive the dust-proof cloth to move, so that the dust-proof cloth covers the display screen. Under the action of the torsion spring, the dust-proof cloth is always in a taut state. By rotating the rotating handle to drive the rubber extrusion plate to move to squeeze the dust-proof cloth, the dust-proof cloth is closely attached to the drawer-type low-temperature test chamber body, covering the display screen to prevent dust from the outside from adhering to the display screen when people do not use this device, affecting the service life of the display screen. By moving the two moving plates away from each other to drive the clamping rod out of the card slot, the staff can move the winding roller upward to disassemble the dust-proof cloth from this device for replacement. The process is simple and fast, and the work efficiency is high. Description of the Drawings

[0013] Figure 1 is the front view of the drawer-type low-temperature test chamber provided by the present utility model;

[0014] Figure 2 is Figure 1 the enlarged schematic view of part A shown in;

[0015] Figure 3 is Figure 1 the enlarged schematic view of part B shown in;

[0016] Figure 4 is Figure 1 the assembly drawing of the sliding rod, the circular plate and the round plate shown in;

[0017] Figure 5 is Figure 1 the exploded assembly drawing of the U-shaped plate, the winding roller and the installation plate shown in.

[0018] In the figure: 1. The main body of the drawer-type low-temperature test chamber; 2. Display screen 2; 3. U-shaped plate; 4. Winding roller; 5. Dust-proof cloth; 6. Sliding rod; 7. Circular plate; 8. Card slot; 9. Card rod; 10. Torsion spring; 11. Circular plate; 12. Compression spring; 13. Moving plate; 14. Limit cross bar; 15. Rotating screw; 16. Movable magic tape; 17. Mounting plate; 18. Rubber extrusion plate; 19. Rotating handle; 20. Limit rod; 21. Fixed magic tape. Specific embodiments

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0020] The present invention provides as Figures 1-5A drawer - type low - temperature test chamber shown in the figure includes a U - shaped plate 3 fixedly installed on the outer wall of the drawer - type low - temperature test chamber body 1, and the U - shaped plate 3 is located below the display screen 2 on the drawer - type low - temperature test chamber body 1. In order to enable the dust - proof cloth 5 to stably maintain its current position when dust - proofing the display screen 2, a fixed magic tape 21 is fixedly installed on the outer wall of the drawer - type low - temperature test chamber body 1, and the fixed magic tape 21 is located above the display screen 2. A winding roller 4 is arranged inside the U - shaped plate 3, and a dust - proof cloth 5 is wound around the winding roller 4. One side of the dust - proof cloth 5 where it covers the display screen 2 is fixedly installed with a movable magic tape 16. By moving the movable magic tape 16, the dust - proof cloth 5 can be moved. Two slots 8 are respectively opened at both ends of the winding roller 4. Two sliding rods 6 are slidably installed on the U - shaped plate 3. Two circular plates 11 are respectively rotatably sleeved on the two sliding rods 6. Two clamping rods 9 are respectively fixedly installed on the two circular plates 11, and one ends of the four clamping rods 9 respectively extend into the corresponding slots 8. The ends of the two sliding rods 6 close to each other are respectively fixedly installed with circular plates 7. Two torsion springs 10 are respectively movably sleeved on the two sliding rods 6, and one ends of the two torsion springs 10 are respectively fixedly connected to the corresponding circular plates 11, and the other ends of the two torsion springs 10 are respectively fixedly connected to the corresponding circular plates 7. When the winding roller 4 rotates, the torsion springs 10 change from the free state to the stressed state, so that the dust - proof cloth 5 is always subjected to a return force of the torsion spring 10. Under the action of this return force, the dust - proof cloth 5 is always in a taut state. The ends of the two sliding rods 6 away from each other are respectively fixedly installed with moving plates 13. Two compression springs 12 are respectively movably sleeved on the two sliding rods 6, and one ends of the two compression springs 12 are respectively fixedly connected to the corresponding moving plates 13, and the other ends of the two compression springs 12 are both fixedly connected to the U - shaped plate 3. In order to improve the service life of the compression springs 12 and the torsion springs 10, the surfaces of the torsion springs 10 and the compression springs 12 are both tinned.

[0021] In order to limit the moving plate 13, and further limit the sliding rod 6 and the circular plate 7, so that when the circular plate 11 rotates, the torsion spring 10 cannot rotate and changes from the free state to the stressed state, and further enables the dust - proof cloth 5 to always be in a taut state. Two limiting holes are respectively opened on the outer walls of both sides of the U - shaped plate 3. Two limiting cross - bars 14 are respectively fixedly installed on the outer walls of the two moving plates 13 close to each other, and one ends of the four limiting cross - bars 14 respectively extend into the four limiting holes and are respectively slidably connected to the inner walls of the four limiting holes.

[0022] In order to extrude the dust-proof cloth 5, so that the dust-proof cloth 5 fits tightly on the drawer-type low-temperature test chamber body 1 and blocks the display screen 2 more tightly, a rotating screw rod 15 is rotatably installed on the outer wall of the drawer-type low-temperature test chamber body 1. In order to make it more convenient for people to rotate the rotating screw rod 15, a rotating handle 19 is fixedly installed at one end of the rotating screw rod 15 away from the drawer-type low-temperature test chamber body 1. An installation plate 17 is threadedly installed on the rotating screw rod 15, and a rubber extrusion plate 18 is fixedly installed on one side outer wall of the installation plate 17 close to the drawer-type low-temperature test chamber body 1.

[0023] In order to limit the installation plate 17, so that the rotation of the rotating screw rod 15 drives the installation plate 17 to move, a limiting rod 20 is slidably installed on the installation plate 17, and the limiting rod 20 is fixedly connected to the drawer-type low-temperature test chamber body 1.

[0024] The working principle of the drawer-type low-temperature test chamber provided by the present utility model is as follows: In the initial state, both the compression spring 12 and the torsion spring 10 are in a free state, and one end of the clamping rod 9 is located in the card slot 8 to clamp the winding roller 4, and the winding roller 4 and the dust-proof cloth 5 are stably installed on the device. People conduct low-temperature tests on products through the drawer-type low-temperature test chamber body 1. When people do not need to use the device, they move the moving magic tape 16 to drive the dust-proof cloth 5 to move. Finally, the moving magic tape 16 contacts the fixed magic tape 21, and the moving magic tape 16 is firmly adsorbed on the fixed magic tape 21. At the same time, the movement of the moving magic tape 16 causes the winding roller 4 to rotate and release the dust-proof cloth 5. The rotation of the winding roller 4 changes the torsion spring 10 from a free state to a stressed state, so that the dust-proof cloth 5 is always subjected to a return force of the torsion spring 10. Under the action of this return force, the dust-proof cloth 5 is always in a taut state. Then, rotate the rotating handle 19 clockwise. The rotation of the rotating handle 19 drives the rotation of the rotating screw rod 15. The rotation of the rotating screw rod 15 drives the installation plate 17 to move closer to the dust-proof cloth 5. The movement of the installation plate 17 drives the rubber extrusion plate 18 to move and extrude the dust-proof cloth 5, so as to closely attach the dust-proof cloth 5 to the drawer-type low-temperature test chamber body 1, block the display screen 2, and prevent dust from the outside from adhering to the display screen 2 when people do not use the device, affecting the service life of the display screen 2. When the dust-proof cloth 5 is damaged, move the two moving plates 13 away from each other to drive the clamping rod 9 to move out of the card slot 8, so that the winding roller 4 changes from a clamped state to a free state. The staff can move the winding roller 4 upward to disassemble the dust-proof cloth 5 from the device for replacement. The process is simple and fast, and the work efficiency is high.

[0025] Compared with the related technology, the drawer-type low-temperature test chamber provided by the present utility model has the following beneficial effects:

[0026] The utility model provides a drawer-type low-temperature test chamber. People conduct low-temperature tests on products through the drawer-type low-temperature test chamber body 1. When people do not need to use this device, they move the movable magic tape 16 to drive the dust-proof cloth 5 to move, so that the dust-proof cloth 5 covers the display screen 2. Under the action of the torsion spring 10, the dust-proof cloth 5 is always in a tightened state. By rotating the handle 19, the rubber extrusion plate 18 is driven to move to extrude the dust-proof cloth 5, and the dust-proof cloth 5 is closely attached to the drawer-type low-temperature test chamber body 1, covering the display screen 2 to prevent dust from the outside from adhering to the display screen 2 when people do not use this device, which affects the service life of the display screen 2. By moving the two movable plates 13 away from each other, the clamping rod 9 is driven to move out of the clamping groove 8, and the staff can move the winding roller 4 upward to disassemble the dust-proof cloth 5 from this device for replacement. The process is simple and fast, and the work efficiency is high.

[0027] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A drawer-type low-temperature test box, comprising a U-shaped plate fixedly mounted on the outer wall of the drawer-type low-temperature test box body, and the U-shaped plate is located below the display screen on the drawer-type low-temperature test box body, characterized in that: The U-shaped plate is provided with a winding roller, and a dustproof cloth is wound on the winding roller, and a movable Velcro is fixedly installed on one side of the dustproof cloth, and two card slots are respectively provided at both ends of the winding roller, and two sliding rods are slidably installed on the U-shaped plate, and a circular plate is rotatably sleeved on the two sliding rods, and two card rods are respectively fixedly installed on the two circular plates, and one end of the four card rods respectively extends into the corresponding card slots, and the ends of the two sliding rods close to each other are respectively fixedly installed with circular plates, and the two sliding rods are movably sleeved with torsion springs, and one end of the two torsion springs is respectively fixedly connected to the corresponding circular plates, and the other ends of the two torsion springs are respectively fixedly connected to the corresponding circular plates, and the ends of the two sliding rods away from each other are respectively fixedly installed with moving plates, and the two sliding rods are movably sleeved with compression springs, and one end of the two compression springs is respectively fixedly connected to the corresponding moving plates, and the other ends of the two compression springs are fixedly connected to the U-shaped plate.

2. A drawer-type low-temperature test box according to claim 1, characterized in that: Two limiting holes are respectively provided on the outer walls on both sides of the U-shaped plate, and two limiting cross bars are respectively fixedly installed on the outer walls on the sides where the two movable plates are close to each other, and one end of the four limiting cross bars respectively extends into the four limiting holes and is respectively slidably connected to the inner walls of the four limiting holes.

3. A drawer-type low-temperature test box according to claim 2, characterized in that: The surfaces of the torsion spring and the compression spring are both tin-plated.

4. A drawer-type low-temperature test box according to claim 3, characterized in that: A fixed Velcro is fixedly installed on the outer wall of the drawer-type low-temperature test box body, and the fixed Velcro is located above the display screen.

5. A drawer-type low-temperature test box according to claim 4, characterized in that: A rotating screw is rotatably mounted on the outer wall of the drawer-type low-temperature test box body, a mounting plate is threadedly mounted on the rotating screw, and a rubber extrusion plate is fixedly mounted on the outer wall of one side of the drawer-type low-temperature test box body close to the mounting plate.

6. The drawer-type low-temperature test box according to claim 5, characterized in that: A rotating handle is fixedly mounted on one end of the rotating screw away from the drawer-type low-temperature test box body.

7. The drawer-type low-temperature test box according to claim 6, characterized in that: A limiting rod is slidably mounted on the mounting plate, and the limiting rod is fixedly connected to the drawer-type low-temperature test box body.

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