Cold and hot impact box

Abstract

The cold and hot impact box comprises a machine body, a material frame and a driving mechanism, a high-temperature area and a low-temperature area are arranged in the machine body, openings are formed in the front ends of the high-temperature area and the low-temperature area, two camera obscura doors are hinged to one side of the front end face of the machine body, and the driving mechanism is arranged on one side of the machine body and connected with the material frame. The driving mechanism is used for driving the material frame to reciprocate between the high-temperature area and the low-temperature area, the two temperature sensors are arranged in the high-temperature area and the low-temperature area respectively, the two electromagnets are connected with the two camera obscura doors respectively, the two armatures are arranged on the front end face of the machine body, and when the two camera obscura doors seal the high-temperature area and the low-temperature area respectively, the two electromagnets can be attached to the two armatures respectively. The microprocessor is arranged on the machine body and electrically connected with the two temperature sensors and the two electromagnets. The problem that in the prior art, when the temperature in a cold and hot impact box is too high or too low, if a camera obscura door is opened, scalding or frostbite is likely to happen is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of cold and hot shock equipment, in particular to a cold and hot shock box. Background Art

[0002] Thermal shock chambers (also known as temperature shock test chambers or environmental stress screening chambers) are primarily used to test the performance and durability of materials or products under extreme temperature changes. They are capable of rapidly switching from a high temperature environment to a low temperature environment, and vice versa.

[0003] Because its working principle involves extreme temperatures, there are indeed certain safety risks when using it, especially the risk of burns and frostbite. When using a hot and cold shock chamber, operators are required to take personal protection measures, such as wearing appropriate personal protective equipment, such as high-temperature resistant gloves, masks, safety glasses, etc.; but during the work process, if the staff forget to take personal protection measures, when opening the dark box door of the hot and cold shock chamber, they will be exposed to high-temperature or low-temperature airflow, which may easily cause burns or frostbite. Utility Model Content

[0004] The purpose of the present invention is to overcome the above technical deficiencies and provide a hot and cold shock box to solve the problem in the prior art that when the temperature in the hot and cold shock box is too high or too low, burns or frostbite may easily occur if the dark box door is opened.

[0005] In order to achieve the above technical purpose, the present invention adopts the following technical solutions:

[0006] The utility model provides a hot and cold shock box, comprising a machine body, a material frame and a driving mechanism, wherein a high-temperature zone and a low-temperature zone with front-end openings are provided in the machine body, two dark box doors are hingedly connected to one side of the front end surface of the machine body, the two dark box doors are respectively used to close or open the high-temperature zone and the low-temperature zone, the driving mechanism is arranged on one side of the machine body and connected to the material frame, the driving mechanism is used to drive the material frame to reciprocate between the high-temperature zone and the low-temperature zone; the utility model also includes a temperature sensor, an electromagnet, an armature and a microprocessor, the two temperature sensors are respectively arranged in the high-temperature zone and the low-temperature zone, the two electromagnets are respectively connected to the two dark box doors, the two armatures are both arranged on the front end surface of the machine body, and when the two dark box doors respectively close the high-temperature zone and the low-temperature zone, the two electromagnets can respectively fit with the two armatures, the microprocessor is arranged on the machine body, and the microprocessor is respectively electrically connected to the two temperature sensors and the two electromagnets.

[0007] In some embodiments, a cavity is provided inside the material frame and the front end is open, and a rear end surface of the material frame is provided with a plurality of through holes.

[0008] In some embodiments, at least one support block is provided on opposite sides of the inner wall of the cavity, and the tray can be arranged between the two corresponding support blocks.

[0009] In some embodiments, a limiting rod is provided on the support block, and a through hole is provided on the side of the tray to match the limiting rod.

[0010] In some embodiments, the driving mechanism includes a mounting frame, a lifting platform, a telescopic member and a connecting member. The mounting frame is fixed on one side of the machine body, the lifting platform is slidably arranged in the mounting frame, the fixed end of the telescopic member is fixedly connected to the bottom of the mounting frame, the movable end of the telescopic member is fixedly connected to the lower surface of the lifting platform, and the connecting member is connected between the upper surface of the lifting platform and the material frame.

[0011] In some embodiments, the connecting member includes a first rotating wheel, a second rotating wheel, a third rotating wheel, a fourth rotating wheel and a chain. The first rotating wheel and the second rotating wheel are arranged at intervals on the upper surface of the lifting platform, the third rotating wheel and the fourth rotating wheel are arranged at intervals on the top of the mounting frame, and a fifth rotating wheel is provided at the top of the machine body. One end of the chain is fixedly connected to the top of the mounting frame, and the other end of the chain passes around the first rotating wheel, the third rotating wheel, the second rotating wheel, the fourth rotating wheel, and the fifth rotating wheel in sequence and is connected to the material frame.

[0012] In some embodiments, the other end of the chain is connected to a hook, and the top of the material frame is provided with a hanging ring that cooperates with the hook.

[0013] In some embodiments, movable pulleys are provided on opposite sides of the lifting platform, and sliding rails that cooperate with the movable pulleys are provided in the mounting frame.

[0014] In some embodiments, the telescopic member is an electric push rod, a pneumatic cylinder or a hydraulic cylinder.

[0015] In some embodiments, the high temperature zone is located above the low temperature zone, the lowest temperature of the low temperature zone is -65°C, and the highest temperature of the high temperature zone is 180°C.

[0016] Compared with the prior art, the utility model provides a hot and cold shock box, in which two temperature sensors are respectively arranged in the high temperature zone and the low temperature zone, two electromagnets are respectively connected to the two dark box doors, and two armatures are both arranged on the front end surface of the machine body. When the two dark box doors respectively close the high temperature zone and the low temperature zone, the two electromagnets can respectively fit with the two armatures. A microprocessor is arranged on the machine body, and the microprocessor is respectively electrically connected to the two temperature sensors and the two electromagnets; the two temperature sensors are used to detect the temperatures in the high temperature zone and the low temperature zone, and transmit the temperature signal to the microprocessor. After receiving the signal, the microprocessor controls the electromagnet to energize, and the electromagnet and the armature are attracted to keep the dark box doors in a locked state, so that the operator cannot open the two dark box doors when the temperature is high or low, thereby improving the safety performance of the hot and cold shock box when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of a hot and cold shock box provided by an embodiment of the present utility model;

[0018] Figure 2 This is a schematic structural diagram of a material frame provided by an embodiment of the present utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of the body provided by the embodiment of the utility model;

[0020] Figure 4 It is a structural diagram of the driving mechanism provided by an embodiment of the utility model;

[0021] Figure 5 It is a structural schematic diagram of the lifting platform provided by an embodiment of the utility model. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0023] In order to solve the technical problem in the prior art that when the temperature in the hot and cold shock box is too high or too low, if the dark box door is opened, burns or frostbite may easily occur, the utility model provides a hot and cold shock box, which can lock the dark box door when the temperature is too high or too low, so that the operator cannot open the dark box door.

[0024] See also Figure 1-Figure 5 , Figure 1-Figure 5 The utility model is a hot and cold shock box in one embodiment, comprising a body 1, a material frame 2 and a driving mechanism 3. The body 1 is provided with a high-temperature zone 1a and a low-temperature zone 1b with a front opening. Two dark box doors 11 are hinged on one side of the front face of the body 1. The two dark box doors 11 are used to close or open the high-temperature zone 1a and the low-temperature zone 1b respectively. The driving mechanism 3 is provided on one side of the body 1 and connected to the material frame 2. The driving mechanism 3 is used to drive the material frame 2 to reciprocate between the high-temperature zone 1a and the low-temperature zone 1b; the temperature sensor 4 is also included. The electromagnet 5, the armature 6 and the microprocessor 7, the two temperature sensors 4 are respectively arranged in the high temperature zone 1a and the low temperature zone 1b, the two electromagnets 5 are respectively connected to the two dark box doors 11, the two armatures 6 are both arranged on the front end surface of the body 1, and when the two dark box doors 11 respectively close the high temperature zone 1a and the low temperature zone 1b, the two electromagnets 5 can be respectively fitted with the two armatures 6, the microprocessor 7 is arranged on the body 1, and the microprocessor 7 is respectively electrically connected to the two temperature sensors 4 and the two electromagnets 5.

[0025] In this specific embodiment, the thermal shock chamber is mainly used to test the performance of materials under extreme temperature changes. Its composition can be summarized as follows: the body 1 is provided with a high temperature zone 1a and a low temperature zone 1b. The high temperature zone 1a can generate and maintain a higher temperature to simulate the impact of a high temperature environment on the material.

[0026] The low temperature zone 1b can generate and maintain a lower temperature to simulate the impact of a low temperature environment on materials.

[0027] The material frame 2 where the sample to be tested is placed is usually located between the high temperature zone 1a and the low temperature zone 1b. The driving mechanism 3 drives the material frame 2 to move so that the sample can be switched between different temperature environments.

[0028] In this specific embodiment, the high temperature zone 1a is located above the low temperature zone 1b, the lowest temperature of the low temperature zone 1b is -65°C, and the highest temperature of the high temperature zone 1a is 180°C.

[0029] Specifically, the material frame 2 is welded from alloy plates, a cavity is provided inside the material frame 2 and the front end is open, a plurality of through holes 21 are provided on the rear end face of the material frame 2, and the sample to be tested can be directly placed inside the material frame 2.

[0030] In the technology of the above solution, in order to increase the number of samples to be tested placed in the material frame 2, specifically,

[0031] At least one support block 22 is provided on opposite sides of the inner wall of the cavity, and the tray 8 can be arranged between the two corresponding support blocks 22. In order to improve the stability of the tray 8 placed in the material frame 2, a limit rod is provided on the support block 22, and the side of the tray 8 is provided with a through hole that cooperates with the limit rod. When in use, multiple smaller samples to be tested can be placed in the tray 8.

[0032] In this specific embodiment, the driving mechanism 3 includes a mounting frame 31, a lifting platform 32, a telescopic member 33 and a connecting member 34. The mounting frame 31 is fixed on one side of the machine body 1, and the lifting platform 32 is slidably arranged in the mounting frame 31. The fixed end of the telescopic member 33 is fixedly connected to the bottom of the mounting frame 31, and the movable end of the telescopic member 33 is fixedly connected to the lower surface of the lifting platform 32. The connecting member 34 is connected between the upper surface of the lifting platform 32 and the material frame 2.

[0033] In this specific embodiment, the telescopic member 33 is an electric push rod, a pneumatic cylinder or a hydraulic cylinder. Of course, in other embodiments, the telescopic member 33 may also be a pneumatic cylinder or a hydraulic cylinder.

[0034] Among them, the connecting member 34 includes a first rotating wheel 341, a second rotating wheel 342, a third rotating wheel 343, a fourth rotating wheel 344 and a chain 345. The first rotating wheel 341 and the second rotating wheel 342 are arranged at intervals on the upper surface of the lifting platform 32, and the third rotating wheel 343 and the fourth rotating wheel 344 are arranged at intervals at the top of the mounting frame 31. A fifth rotating wheel 346 is provided at the top of the body 1, and one end of the chain 345 is fixedly connected to the top of the mounting frame 31, and the other end of the chain 345 passes around the first rotating wheel 341, the third rotating wheel 343, the second rotating wheel 342, the fourth rotating wheel 344, and the fifth rotating wheel 346 in sequence and is connected to the material frame 2.

[0035] In addition, movable pulleys 321 are provided on opposite sides of the lifting platform 32, and a sliding rail that cooperates with the movable pulley 321 is provided in the mounting frame 31. The lifting platform 32 is driven to move along the sliding rail by the telescopic member 33, and the length of the chain 345 extending into the body can be adjusted. In this specific embodiment, the other end of the chain 345 is connected to a hook, and the top of the material frame 2 is provided with a hanging ring 23 that cooperates with the hook.

[0036] In order to better understand the present invention, the following Figures 1 to 5 The technical solution of the utility model is described in detail:

[0037] The sample to be tested is placed in the material frame 2, the two dark box doors 11 are closed, and the material frame 2 is driven to reciprocate between the high temperature zone 1a and the low temperature zone 1b by the driving mechanism 3; at the same time, the two temperature sensors 4 are used to detect the temperatures in the high temperature zone 1a and the low temperature zone 1b, and transmit the temperature signal to the microprocessor 7. After receiving the signal, the microprocessor 7 controls the electromagnet 5 to be energized, and the electromagnet 5 and the armature 6 are attracted to keep the dark box door 11 in a locked state, so that the operator cannot open the two dark box doors when the temperature is high or low; when the two temperature sensors 4 detect that the temperature in the high temperature zone 1a and the low temperature zone 1b is at a safe temperature, and transmit the temperature signal to the microprocessor 7, the microprocessor 7 controls the electromagnet 5 to be de-energized after receiving the signal, and the electromagnet 5 and the armature 6 are separated to unlock the dark box door 11. Among them, the microprocessor 7 is a processor commonly sold on the market, and its model can be GD32F303RCT6.

[0038] The specific embodiments of the present invention described above do not limit the scope of protection of the present invention. Any other corresponding changes and modifications made based on the technical concept of the present invention should be included in the scope of protection of the claims of the present invention.

Claims

1. A hot and cold shock chamber, comprising a body, a material frame, and a drive mechanism, wherein the body is provided with a high-temperature zone and a low-temperature zone with front openings, two dark chamber doors are hingedly connected to one side of the front end surface of the body, and the two dark chamber doors are respectively used to close or open the high-temperature zone and the low-temperature zone, the drive mechanism is provided on one side of the body and connected to the material frame, and the drive mechanism is used to drive the material frame to reciprocate between the high-temperature zone and the low-temperature zone; characterized in that It also includes a temperature sensor, an electromagnet, an armature and a microprocessor. The two temperature sensors are respectively arranged in the high temperature zone and the low temperature zone. The two electromagnets are respectively connected to the two dark box doors. The two armatures are both arranged on the front end surface of the body. When the two dark box doors respectively close the high temperature zone and the low temperature zone, the two electromagnets can respectively fit with the two armatures. The microprocessor is arranged on the body, and the microprocessor is respectively electrically connected to the two temperature sensors and the two electromagnets.

2. A thermal shock chamber according to claim 1, characterized in that: The material frame is provided with a cavity inside and has an open front end, and a rear end surface of the material frame is provided with a plurality of through holes.

3. A thermal shock box according to claim 2, characterized in that: At least one supporting block is provided on opposite sides of the inner wall of the cavity, and the tray can be arranged between the two corresponding supporting blocks.

4. A thermal shock chamber according to claim 3, characterized in that: A limiting rod is provided on the support block, and a side edge of the tray is provided with a through hole matched with the limiting rod.

5. The thermal shock chamber according to claim 1, characterized in that: The driving mechanism includes a mounting frame, a lifting platform, a telescopic member and a connecting member. The mounting frame is fixedly mounted on one side of the machine body, the lifting platform is slidably arranged in the mounting frame, the fixed end of the telescopic member is fixedly connected to the bottom of the mounting frame, the movable end of the telescopic member is fixedly connected to the lower surface of the lifting platform, and the connecting member is connected between the upper surface of the lifting platform and the material frame.

6. A thermal shock chamber according to claim 5, characterized in that: described The connecting part includes a first rotating wheel, a second rotating wheel, a third rotating wheel, a fourth rotating wheel and a chain. The first rotating wheel and the second rotating wheel are arranged at intervals on the upper surface of the lifting platform, the third rotating wheel and the fourth rotating wheel are arranged at intervals on the top of the mounting frame, and the top of the machine body is provided with a fifth rotating wheel. One end of the chain is fixedly connected to the top of the mounting frame, and the other end of the chain passes around the first rotating wheel, the third rotating wheel, the second rotating wheel, the fourth rotating wheel, and the fifth rotating wheel in sequence and is connected to the material frame.

7. A thermal shock chamber according to claim 6, characterized in that: The other end of the chain is connected with a hook, and the top of the material frame is provided with a hanging ring matched with the hook.

8. The thermal shock chamber according to claim 5, characterized in that: The two opposite sides of the lifting platform are both provided with movable pulleys, and the mounting frame is provided with sliding rails matched with the movable pulleys.

9. The thermal shock chamber according to claim 5, characterized in that: The telescopic member is an electric push rod, a pneumatic cylinder or a hydraulic cylinder.

10. The thermal shock chamber according to claim 1, characterized in that: The high temperature zone is located above the low temperature zone, the lowest temperature of the low temperature zone is -65°C, and the highest temperature of the high temperature zone is 180°C.

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