Ventilation device for high and low temperature test box

Abstract

The utility model discloses an air interchanger for a high-low temperature test chamber. The air interchanger comprises a high-low temperature test chamber body and a dismounting mechanism, a test cavity is formed in the high-low temperature test box body, one side of the high-low temperature test box body is communicated with an air inlet pipe, the top of the high-low temperature test box body is communicated with an exhaust pipe, one end of the air inlet pipe and one end of the exhaust pipe are communicated with the interior of the test cavity, and filter screens are arranged in the air inlet pipe and the exhaust pipe; according to the high and low temperature test box ventilation device, the air inlet pipe and the exhaust pipe are arranged on the test cavity of the high and low temperature test box body, and the filter screens convenient to disassemble and assemble are arranged in the air inlet pipe and the exhaust pipe, so that the filter screens can filter gas entering or exhausted out of the test box, and the filter screens are convenient to disassemble, assemble and replace; through the arrangement, external gas is prevented from carrying impurities to enter the test cavity, and pollution to the environment caused by direct emission of the gas is also avoided.

Description

Technical Field

[0001] This utility model relates to the field of high and low temperature test chamber technology, specifically a ventilation device for a high and low temperature test chamber. Background Technology

[0002] As is well known, a high and low temperature test chamber is a device that can simulate high or low temperature environments to conduct aging tests on products. It is widely used in the aging tests of electronic products. The equipment usually has a test chamber inside, as well as air inlet and exhaust pipes. The temperature inside the test chamber can be controlled by the control panel, and the air inlet and exhaust can also be controlled.

[0003] However, existing high and low temperature test chambers lack filtration functions for the incoming and outgoing gases during air intake and exhaust, resulting in gases carrying impurities directly entering the test chamber, affecting its normal use. Furthermore, the direct discharge of gases after the test also pollutes the environment. Therefore, a ventilation device for high and low temperature test chambers is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a ventilation device for a high and low temperature test chamber to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a ventilation device for a high and low temperature test chamber, comprising: a high and low temperature test chamber body and a disassembly and assembly mechanism;

[0006] The high and low temperature test chamber body has a test chamber inside. One side of the high and low temperature test chamber body is connected to an air inlet pipe, and the top of the high and low temperature test chamber body is connected to an exhaust pipe. One end of the air inlet pipe and the exhaust pipe are connected to the interior of the test chamber. The interior of the air inlet pipe and the exhaust pipe are both equipped with filters. The end of the air inlet pipe and the exhaust pipe away from the test chamber is connected to an internally threaded conduit. The outer wall of the air inlet pipe and the exhaust pipe are both provided with threaded protrusions. The inner wall of the internally threaded conduit is threadedly connected to the threaded protrusions.

[0007] The disassembly and assembly mechanism includes a ring body fixedly embedded in the filter screen, grooves symmetrically opened on the inner walls of the intake pipe and the exhaust pipe, and annular blocks symmetrically fixedly embedded in the intake pipe and the exhaust pipe. A protrusion is fixedly embedded in the inside of the groove. Plastic spring pieces for inserting into the groove are fixedly connected to both sides of the ring body. The plastic spring pieces have through holes for inserting the protrusions.

[0008] By adopting the above technical solution, gas can enter the test chamber from the inlet pipe, and the gas used in the test chamber can be discharged from the exhaust pipe. Both the entering and exiting gases can be filtered by the filter screen. In addition, when the filter screen needs to be replaced or cleaned, the internal threaded guide tube can be separated from the threaded protrusion by rotating it. Then, by simultaneously squeezing the two plastic springs, the through hole can be separated from the protrusion. The filter screen can then be pulled out from the inlet or exhaust pipe by the ring body. When the replaced or cleaned filter screen needs to be installed, the ring body can be pressed tightly against the annular stop by squeezing the two plastic springs. Then, by releasing the plastic springs, the plastic springs can be reset under their own elastic force and inserted into the groove, so that the protrusion can pass through the through hole, and the plastic springs can be fixed in place, so that the ring body and the filter screen can be securely installed.

[0009] Preferably, a handle is fixedly connected to one side of the plastic spring.

[0010] By adopting the above technical solution, it is easy to squeeze the plastic spring, thereby facilitating the disassembly and assembly of the filter screen.

[0011] Preferably, both the intake pipe and the exhaust pipe are fixedly fitted with baffles, which are located on the side near the threaded protrusion.

[0012] By adopting the above technical solution, it is possible to limit the movement of the internally threaded conduit that is threaded onto the intake or exhaust pipe.

[0013] Preferably, a sealing ring is fixedly connected to the side of the baffle near the threaded protrusion.

[0014] By adopting the above technical solution, when the internal threaded conduit is fitted onto the intake or exhaust pipe, the sealing ring can be compressed under the action of the baffle, thereby ensuring the sealing performance of the internal threaded conduit after installation.

[0015] Preferably, the filter screen is an activated carbon filter screen.

[0016] By adopting the above technical solution, impurities carried in the incoming or outgoing gas can be effectively filtered.

[0017] Preferably, a control panel is fixedly installed on the outside of the high and low temperature test chamber body.

[0018] By adopting the above technical solution, it is easy to control the temperature of the test chamber, as well as the air intake and exhaust of the test chamber.

[0019] Preferably, a rubber pad is fixedly connected to the outside of the handle.

[0020] By adopting the above technical solutions, the comfort of using the handle can be improved.

[0021] In summary, this application includes at least one of the following beneficial technical effects:

[0022] This high and low temperature test chamber's ventilation device features an inlet pipe and an exhaust pipe installed on the test chamber itself. The inlet and exhaust pipes are equipped with easily removable filters, allowing the filters to effectively filter the gas entering or exiting the chamber and facilitating their replacement. This design not only prevents external gases from carrying impurities into the test chamber but also avoids direct gas emissions that could pollute the environment. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the ventilation device for the high and low temperature test chamber of this utility model;

[0024] Figure 2 This is an enlarged view of area A of the structural schematic diagram of the ventilation device in the high and low temperature test chamber of this utility model.

[0025] Figure 3 This is a schematic diagram of the structure of the high and low temperature test chamber body in the ventilation device of the high and low temperature test chamber of this utility model;

[0026] Figure 4 This is an enlarged view of section B of the high and low temperature test chamber body structure diagram in the ventilation device of the high and low temperature test chamber of this utility model.

[0027] In the diagram: 1. High and low temperature test chamber body; 10. Test chamber; 11. Air inlet pipe; 12. Exhaust pipe; 13. Internally threaded conduit; 14. Filter screen; 15. Control panel; 2. Disassembly and assembly mechanism; 20. Annular stop block; 21. Groove; 22. Protrusion; 23. Ring body; 24. Plastic spring; 25. Through hole; 26. Handle; 27. Baffle; 28. Threaded protrusion; 29. ​​Sealing ring. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figures 1-4 This utility model provides a technical solution: a ventilation device for a high and low temperature test chamber, comprising: a high and low temperature test chamber body 1 and a disassembly and assembly mechanism 2;

[0030] First, in order for gas to enter the test chamber 10 from the inlet pipe 11 and for the gas to be discharged from the exhaust pipe 12 after use in the test chamber 10, both the incoming and outgoing gases are filtered by the filter screen 14. The test chamber 10 is provided inside the high and low temperature test chamber body 1. The inlet pipe 11 is connected to one side of the high and low temperature test chamber body 1, and the exhaust pipe 12 is connected to the top of the high and low temperature test chamber body 1. One end of the inlet pipe 11 and the exhaust pipe 12 are connected to the interior of the test chamber 10. The filter screen 14 is provided inside the inlet pipe 11 and the exhaust pipe 12. The end of the inlet pipe 11 and the exhaust pipe 12 away from the test chamber 10 is connected to the internally threaded conduit 13. The outer wall of the inlet pipe 11 and the exhaust pipe 12 are provided with threaded protrusions 28. The inner wall of the internally threaded conduit 13 is threadedly connected to the threaded protrusions 28. In order to effectively filter the impurities carried in the incoming or outgoing gases, the filter screen 14 is an activated carbon filter screen 14.

[0031] Secondly, in order to remove or clean the filter 14, the internal threaded guide tube 13 can be rotated to separate it from the threaded protrusion 28. Then, by simultaneously squeezing the two plastic spring clips 24, the through hole 25 can be separated from the protrusion 22. This allows the filter 14 to be pulled out of the intake pipe 11 or exhaust pipe 12 via the ring body 23. When installing the replaced or cleaned filter 14, the ring body 23 can be pressed tightly against the annular stop block 20 by squeezing the two plastic spring clips 24, and then the plastic spring clips 24 can be released to reset and insert under their own elastic force. The protrusion 22 can penetrate the through hole 25 into the groove 21, thereby fixing the plastic spring 24 and ensuring the ring 23 and filter screen 14 are securely installed. The disassembly and assembly mechanism 2 includes a ring 23 fixedly embedded in the filter screen 14, grooves 21 symmetrically opened on the inner walls of the intake pipe 11 and exhaust pipe 12, and annular blocks 20 symmetrically fixedly embedded in the intake pipe 11 and exhaust pipe 12. The protrusion 22 is fixedly embedded inside the groove 21. Plastic springs 24 for inserting into the groove 21 are fixedly connected to both sides of the ring 23. The plastic springs 24 have through holes 25 for inserting the protrusion 22 inside.

[0032] Furthermore, to facilitate the clamping of the plastic spring 24 and thus the disassembly and assembly of the filter 14, a handle 26 is fixedly connected to one side of the plastic spring 24; to improve the comfort of using the handle 26, a rubber pad is fixedly connected to the outside of the handle 26; to ensure the sealing of the internal threaded conduit 13 after it is fitted onto the air inlet pipe 11 or the exhaust pipe 12, the sealing ring 29 can be pressed under the action of the baffle 27, thereby ensuring the sealing of the internal threaded conduit 13 after installation, baffles 27 are fixedly fitted onto both the air inlet pipe 11 and the exhaust pipe 12. The baffles 27 are located on the side near the threaded protrusion 28, and the sealing ring 29 is fixedly connected to the side of the baffles 27 near the threaded protrusion 28; to facilitate the control of the temperature of the test chamber 10, and also to facilitate the control of the air intake and exhaust of the test chamber 10, a control panel 15 is fixedly installed on the outside of the high and low temperature test chamber body 1.

[0033] Based on the above technical solution, the working steps of this solution are summarized as follows: During use, gas enters the test chamber 10 through the inlet pipe 11, and the gas used in the test chamber 10 is discharged through the exhaust pipe 12. Both the entering and exiting gases are filtered by the filter screen 14. Furthermore, when the filter screen 14 needs to be replaced or cleaned, it can be separated from the threaded protrusion 28 by rotating the internal threaded guide tube 13. Then, by simultaneously squeezing the two plastic spring pieces 24, the through hole 25 can be moved away from the protrusion. When block 22 is separated, the filter screen 14 can be pulled out from the intake pipe 11 or exhaust pipe 12 by the ring body 23. When the filter screen 14 needs to be replaced or cleaned, the ring body 23 can be pressed tightly against the annular stop block 20 by squeezing the two plastic spring pieces 24, and then the plastic spring pieces 24 can be released to reset under their own elastic force and be inserted into the groove 21, so that the protrusion 22 can pass through the through hole 25, thereby fixing the plastic spring piece 24 and making the ring body 23 and the filter screen 14 securely installed.

[0034] All parts not described in this utility model are the same as or can be implemented using existing technology. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this utility model, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A ventilation device for a high and low temperature test chamber, characterized in that, include: High and low temperature test chamber body (1) and disassembly and assembly mechanism (2); The high and low temperature test chamber body (1) is provided with a test chamber (10) inside. An air inlet pipe (11) is connected to one side of the high and low temperature test chamber body (1). An exhaust pipe (12) is connected to the top of the high and low temperature test chamber body (1). One end of the air inlet pipe (11) and the exhaust pipe (12) are connected to the interior of the test chamber (10). A filter screen (14) is provided inside the air inlet pipe (11) and the exhaust pipe (12). An internal threaded conduit (13) is connected to the end of the air inlet pipe (11) and the exhaust pipe (12) away from the test chamber (10). A threaded protrusion (28) is provided on the outer wall of the air inlet pipe (11) and the exhaust pipe (12). The inner wall of the internal threaded conduit (13) is threadedly connected to the threaded protrusion (28). The disassembly and assembly mechanism (2) includes a ring (23) fixedly embedded in the filter screen (14), grooves (21) symmetrically opened on the inner walls of the air intake pipe (11) and the exhaust pipe (12), and annular blocks (20) symmetrically fixedly embedded in the air intake pipe (11) and the exhaust pipe (12). A protrusion (22) is fixedly embedded inside the groove (21). Both sides of the ring (23) are fixedly connected with plastic springs (24) for inserting into the groove (21). The plastic springs (24) have through holes (25) for inserting the protrusions (22) inside.

2. The ventilation device for a high and low temperature test chamber according to claim 1, characterized in that: A handle (26) is fixedly connected to one side of the plastic spring (24).

3. The ventilation device for a high and low temperature test chamber according to claim 1, characterized in that: Both the intake pipe (11) and the exhaust pipe (12) are fixedly fitted with baffles (27), which are located on the side near the threaded protrusion (28).

4. The ventilation device for a high and low temperature test chamber according to claim 3, characterized in that: A sealing ring (29) is fixedly connected to the side of the baffle (27) near the threaded protrusion (28).

5. The ventilation device for a high and low temperature test chamber according to claim 1, characterized in that: The filter screen (14) is an activated carbon filter screen.

6. The ventilation device for a high and low temperature test chamber according to claim 1, characterized in that: A control panel (15) is fixedly installed on the outside of the high and low temperature test chamber body (1).

7. The ventilation device for a high and low temperature test chamber according to claim 2, characterized in that: A rubber pad is fixedly connected to the outside of the handle (26).

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