Temperature shock test box

Abstract

The utility model relates to the technical field of high and low temperature tests, in particular to a temperature shock test box, a test box hole is formed in the top of the test box body, the temperature shock test box comprises the test box body, a test switching mechanism is installed below the test box hole, and the test switching mechanism comprises a rectangular frame. Sliding rails are installed at the bottom of the rectangular frame and connected to sliding grooves, the sliding grooves are formed in a low-temperature partition plate and a high-temperature partition plate, so that the low-temperature partition plate and the high-temperature partition plate can slide on the sliding rails, the low-temperature partition plate and the high-temperature partition plate are the same in specification, and same limiting through holes are formed in the center positions of the low-temperature partition plate and the high-temperature partition plate. And a test article placing box is mounted in the middle of the limiting through hole in a penetrating manner. According to the high-low temperature impact test device, a test sample can be subjected to a rapid high-low temperature impact test, high-pressure gas in the test box can be subjected to pressure relief, the test safety is high, meanwhile, the test box can be subjected to follow-up cleaning, and the cleaning efficiency is remarkably improved.

Description

Technical Field

[0001] The utility model relates to the technical field of high and low temperature tests, in particular to a temperature shock test box. Background Art

[0002] The temperature shock test chamber is a device used to test the tolerance and stability of an object at different temperatures. It can simulate an extreme temperature change environment and is used to test the performance and reliability of a product under extreme conditions to evaluate the quality feasibility of the product. Before the test, the traditional temperature shock test chamber usually needs to pass high-temperature and low-temperature gases into the test chamber to create a high and low temperature test environment. However, the continuous introduction of high-temperature and low-temperature gases will cause the pressure inside the test chamber to gradually increase. When it exceeds the test chamber's tolerance range, it will cause the test chamber to burst and be damaged, which is easy to cause injuries to test personnel and other accidents, greatly reducing safety. After the test is completed, the test chamber usually needs to be manually cleaned, which is time-consuming and labor-intensive, and is not conducive to efficient product temperature shock testing. Utility Model Content

[0003] The utility model overcomes the shortcomings of the prior art and provides a temperature shock test box.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is:

[0005] The utility model provides a temperature shock test box, which comprises a test box body:

[0006] A test box hole is provided on the top of the test box body, and a test switching mechanism is installed below the test box hole. The test switching mechanism includes a rectangular frame, and a slide rail is installed at the bottom of the rectangular frame. The slide rail is connected to a slide groove, and the slide groove is provided on the low-temperature partition and the high-temperature partition so that the low-temperature partition and the high-temperature partition can slide on the slide rail. The low-temperature partition and the high-temperature partition have the same specifications and the same limiting through hole is provided at the center position, and a test product placement box is installed through the middle of the limiting through hole.

[0007] Furthermore, in a preferred embodiment of the present invention, a low-temperature chamber is provided on one side of the low-temperature partition, and a first electromagnet is installed on the other side of the low-temperature partition.

[0008] Furthermore, in a preferred embodiment of the present invention, a high-temperature chamber is provided on one side of the high-temperature partition, and a second electromagnet is installed on the other side of the high-temperature partition.

[0009] Furthermore, in a preferred embodiment of the present invention, a blocking plate is provided on each side of the test sample placement box, and a plurality of circular guide holes are opened on the test sample placement box.

[0010] Further, in a preferred embodiment of the present utility model, an air inlet pipe is connected to one side of the test sample placement box, and the air inlet pipe can be connected to a blowing device.

[0011] Further, in a preferred embodiment of the present utility model, a threaded nut is provided at the top of the rectangular frame. The threaded nut is installed on a threaded rod, and the end of the threaded rod is connected to a servo motor.

[0012] Further, in a preferred embodiment of the present utility model, the threaded rod is installed on the test chamber body, and a guide rod is also provided on the test chamber body.

[0013] Further, in a preferred embodiment of the present utility model, a guide block is sleeved on the guide rod, and the guide block is fixed to the top of the rectangular frame.

[0014] Further, in a preferred embodiment of the present utility model, one side of a hinge is installed around the test chamber hole, and the other side of the hinge is installed on the opening and closing door.

[0015] Further, in a preferred embodiment of the present utility model, anti-slip isolation strips are welded at the corners of the test chamber body.

[0016] The present utility model solves the defects existing in the background technology. The beneficial technical effects of the present utility model are as follows: Before the test, the gas in the high and low temperature chambers is simultaneously depressurized, so as to eliminate most of the gas pressure generated inside the thermal shock test chamber. Compared with the traditional thermal shock test chamber that cannot be depressurized, the safety factor of the product thermal shock test is improved, the rupture caused by excessive pressure in the test chamber is avoided, the maintenance and replacement costs of the test chamber are reduced, the personal safety of the test personnel is guaranteed, and at the same time, after the test is completed, the water droplets formed inside the test chamber can be cleaned by blowing, replacing the traditional manual cleaning steps, saving time and effort, and improving the equipment cleaning efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The specification drawings forming a part of the present utility model are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model.

[0018] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0019] Figure 2 It is a schematic diagram of the first sectional structure of the present utility model;

[0020] Figure 3 It is a schematic diagram of the second sectional structure of the present utility model;

[0021] Figure 4It is a schematic diagram of the installation structure of the slide groove and the slide rail of the utility model.

[0022] In the figure:

[0023] 1. Test box body; 2. Test box hole; 3. Rectangular frame; 4. Slide rail; 5. Slide groove; 6. Low temperature partition; 7. High temperature partition; 8. Limiting through hole; 9. Test product placement box; 10. Low temperature chamber; 11. First electromagnet; 12. High temperature chamber; 13. Second electromagnet; 14. Blocking plate; 15. Circular guide hole; 16. Threaded nut; 17. Threaded rod; 18. Servo motor; 19. Guide rod; 20. Guide block; 21. Hinge; 22. Opening and closing door; 23. Anti-slip isolation strip; 24. Air inlet pipe. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] In the description of the utility model, the reference to "embodiment", "one embodiment", "some embodiments", or "other embodiments" indicates that the specific features, structures or characteristics described in conjunction with the embodiment are included in at least some embodiments, but not necessarily all embodiments. Multiple occurrences of "embodiment", "one embodiment", or "some embodiments" do not necessarily all refer to the same embodiment. If the specification describes that a component, feature, structure or characteristic "may", "perhaps" or "can" be included, the specific component, feature, structure or characteristic is not necessarily included. If the specification or claim mentions "one" element, it does not mean that there is only one element. If the specification or claim mentions "another" element, it does not exclude the presence of more than one other element. In addition, specific features, structures, functions or characteristics can be combined in one or more embodiments in any suitable manner. For example, the first embodiment can be combined with the second embodiment, as long as the specific features, structures, functions or characteristics associated with the two embodiments are not mutually exclusive.

[0026] In the description of the present invention, unless otherwise specified, the use of ordinal adjectives such as "first", "second", and "third" to describe a common object only refers to different instances of the same object, and does not imply that the objects described in this way must adopt a given order, whether in time, space, order, or any other manner. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0027] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0028] Embodiment

[0029] As Figures 1-4 shown, the present application provides a temperature shock test chamber, and the temperature shock test chamber includes a test chamber body 1.

[0030] A test chamber hole 2 is opened at the top of the test chamber body 1, and a test switching mechanism is installed below the test chamber hole 2. The test switching mechanism includes a rectangular frame 3. A slide rail 4 is installed at the bottom of the rectangular frame 3, and the slide rail 4 is connected to a chute 5. The chute 5 is opened on a low-temperature partition 6 and a high-temperature partition 7, so that the low-temperature partition 6 and the high-temperature partition 7 can slide on the slide rail 4. The low-temperature partition 6 and the high-temperature partition 7 have the same specifications, and a same limiting through hole 8 is opened at the central position. A test article placement box 9 is installed through the middle of the limiting through hole 8.

[0031] Further, in a preferred embodiment of the present utility model, a low-temperature chamber 10 is provided on one side of the low-temperature partition 6, and a first electromagnet 11 is installed on the other side of the low-temperature partition 6.

[0032] Further, in a preferred embodiment of the present utility model, a high-temperature chamber 12 is provided on one side of the high-temperature partition 7, and a second electromagnet 13 is installed on the other side of the high-temperature partition 7.

[0033] Further, in a preferred embodiment of the present utility model, blocking partitions 14 are provided on both sides of the test article placement box 9, and a plurality of circular diversion holes 15 are opened on the test article placement box 9.

[0034] Further, in a preferred embodiment of the present utility model, an air inlet pipe 24 is connected to one side of the test article placement box 9, and the air inlet pipe 24 can be connected to a blowing device.

[0035] Further, in a preferred embodiment of the present utility model, a threaded nut 16 is provided at the top of the rectangular frame 3. The threaded nut 16 is installed on a threaded rod 17, and the end of the threaded rod 17 is connected to a servo motor 18.

[0036] Further, in a preferred embodiment of the present utility model, the threaded rod 17 is installed on the test box body 1, and the test box body 1 is further provided with a guide rod 19.

[0037] Further, in a preferred embodiment of the present utility model, a guide block 20 is sleeved on the guide rod 19, and the guide block 20 is fixed to the top of the rectangular frame 3.

[0038] Further, in a preferred embodiment of the present utility model, one side of a combined hinge 21 is installed outside the test box hole 2, and the other side of the hinge 21 is installed on the opening and closing door 22.

[0039] Further, in a preferred embodiment of the present utility model, anti-slip isolation strips 23 are welded at the corners of the test box body 1.

[0040] It should be noted that the initial positions of the low-temperature partition 6 and the high-temperature partition 7 are respectively placed on one side of the low-temperature chamber 10 and the high-temperature chamber 12, so that an independent placement chamber capable of simultaneously isolating the high temperature and low temperature on both sides is formed between the low-temperature partition 6 and the high-temperature partition 7, and they are respectively in contact and closed with the partition plates 14 on both sides of the test sample placement box 9, preventing the gas in the two chambers from flowing into the test sample placement box 9. First, the sample to be tested is placed in the test sample placement box 9 in this independent placement chamber. At the same time, the existing heating equipment is connected to the high-temperature chamber for heating, and the existing cold gas manufacturing equipment is connected to the low-temperature chamber to introduce low-temperature gas, realizing a test simulation environment of extremely hot and extremely cold at both ends of the test box. At this time, the first electromagnet 11 and the second electromagnet 13 are synchronously started, and the first electromagnet 11 and the second electromagnet 13 generate magnetic poles with opposite polarities, realizing the electromagnetic force of mutual attraction between the first electromagnet 11 and the second electromagnet 13. Since the low-temperature partition 6 and the high-temperature partition 7 are connected to the slide rail 4 at the bottom of the rectangular frame 3 through the slide groove 5, they gradually move closer to the middle position of the rectangular frame 3 under the action of the mutually attractive electromagnetic force until the first electromagnet 11 and the second electromagnet 13 finally come into contact and adsorb. At this time, the low-temperature partition 6 and the high-temperature partition 7 are combined to form a single partition, and the inlets of the high-temperature chamber 12 and the low-temperature chamber 10 are synchronously opened, releasing the pressure formed by the high and low temperature differences in the high-temperature chamber 12 and the low-temperature chamber 10 before the test, realizing the rapid release effect of the temperature difference pressure, improving the safety factor of the temperature shock test, and avoiding damage to the sample to be tested due to excessive pressure.

[0041] It should be noted that after the pressure relief is completed, the temperature shock test sequence of the sample to be tested is obtained. If the high-temperature test needs to be carried out first, the servo motor 18 is controlled to start. The output shaft of the servo motor 18 will drive the threaded rod 17 to rotate. When the threaded rod 17 rotates, the thread on it will drive the threaded nut 16, so as to drive the threaded nut 16 to move on the threaded rod 17, thereby driving the rectangular frame 3 to move, so that the rectangular frame 3 synchronously drives the magnetically combined low-temperature partition 6 and the high-temperature partition 7 to continuously translate towards the low-temperature chamber 10 side. During the translation process, since the test sample placement box 9 is in a fixed state, the limit through holes 8 on the low-temperature partition 6 and the high-temperature partition 7 slide along the test sample placement box 9 until the low-temperature partition 6 contacts the partition 14 on the same side of the test sample placement box 9, and then the servo motor 18 can be controlled to stop working. At this time, the low-temperature partition 6 will seal the low-temperature chamber 10 to completely isolate the cold air in the low-temperature chamber 10, and the partition 14 on one side of the low-temperature partition 6 will prevent the cold air from entering the test sample placement box 9; at the same time, the high-temperature chamber 12 is in an open state and the test sample placement box 9 is completely in the high-temperature chamber 12. The high-temperature gas released by the high-temperature chamber 12 will pass through the circular diversion hole 15 to continuously impact the sample to be tested in the test sample placement box 9, achieving the high-temperature shock test effect; when the high-temperature shock test is completed and it is necessary to instantly switch to the low-temperature shock test, only need to control the servo motor 18 to reverse, similarly driving the magnetically combined low-temperature partition 6 and the high-temperature partition 7 to continuously translate towards the high-temperature chamber 12 side, so as to place the test sample placement box 9 completely in the low-temperature chamber 10 and block the gas outflow from the high-temperature chamber 12. This process can achieve the rapid reciprocating switching effect of the high and low temperature environments of the sample to be tested in the test chamber, which is faster than the switching effect of the traditional temperature shock test chamber, improving the test efficiency, saving time and effort, and being able to instantaneously relieve the pressure of the gas in the closed chamber during each switch, reducing the internal pressure and avoiding temperature loss at the same time, ensuring the accuracy of the temperature shock test results, improving the safety and reliability of the test, and preventing test accidents caused by excessive pressure. Among them, during the translation process of the rectangular frame 3, its guide block 20 slides on the guide rod 19, so that the translation of the low-temperature partition 6 and the high-temperature partition 7 is faster and smoother, improving the switching stability and efficiency of the high and low temperature shock test environment.

[0042] It should be noted that after the test is completed, the opening and closing door 22 is opened, and the air blowing device is started to input continuous cold air into the air inlet pipe 24. The cold air reaches the test sample placement box 9 through the air inlet pipe 24, and blows and dries the water droplets formed on the inner wall of the test sample placement box 9 after the high and low temperature shock test. Finally, the cold air is discharged outside the test chamber hole 2 through the circular diversion hole 15, realizing the rapid cleaning ability after the use of the test chamber, replacing the manual cleaning steps, saving the labor output cost, increasing the service life of the test chamber, and having high economic benefits.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the present technical solution, and all of them should be covered within the scope of the claims of the present invention.

Claims

1. A temperature shock test chamber, the temperature shock test chamber comprising a test chamber body, characterized in that: A test chamber hole is provided at the top of the test chamber body, and a test switching mechanism is installed below the test chamber hole. The test switching mechanism includes a rectangular frame, a slide rail is installed at the bottom of the rectangular frame, the slide rail is connected to a chute, and the chute is provided on a low-temperature partition plate and a high-temperature partition plate, so that the low-temperature partition plate and the high-temperature partition plate can slide on the slide rail. The low-temperature partition plate and the high-temperature partition plate have the same specifications, and a same limiting through hole is provided at the central position, and a test sample placement box is installed through the middle of the limiting through hole.

2. The temperature shock test chamber according to claim 1, wherein, One side of the low-temperature partition plate is provided with a low-temperature chamber, and a first electromagnet is installed on the other side of the low-temperature partition plate.

3. The temperature shock test chamber according to claim 1, wherein, One side of the high-temperature partition plate is provided with a high-temperature chamber, and a second electromagnet is installed on the other side of the high-temperature partition plate.

4. A temperature shock test chamber according to claim 1, characterized in that, Blocking partition plates are provided on both sides of the test sample placement box, and a plurality of circular diversion holes are provided on the test sample placement box.

5. The temperature shock test chamber according to claim 4, characterized in that, An air inlet pipe is connected to one side of the test sample placement box, and the air inlet pipe can be connected to a blowing device.

6. The temperature shock test chamber according to claim 1, characterized in that, A threaded nut is provided at the top of the rectangular frame, the threaded nut is installed on a threaded rod, and the end of the threaded rod is connected to a servo motor.

7. The temperature shock test chamber according to claim 6, characterized in that, The threaded rod is installed on the test chamber body, and a guide rod is further provided on the test chamber body.

8. A temperature shock test chamber according to claim 7, characterized in that, A guide block is sleeved on the guide rod, and the guide block is fixed to the top of the rectangular frame.

9. The temperature shock test chamber according to claim 1, characterized in that, One side of a hinge is installed around the test chamber hole, and the other side of the hinge is installed on an opening and closing door.

10. A temperature shock test chamber according to claim 1, characterized in that, Anti-slip isolation strips are welded at the corners of the test chamber body.

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