A sealed environmental test chamber

Abstract

The utility model discloses a sealed environment test box, include: test box body, the beneficial effect of the utility model is: through having set up heat preservation ventilation tank, electric heating wire and three -way pipe, has realized the wind that enters heat preservation ventilation tank through electric heating wire and heats, and the wind of heating enters ventilation tank through three -way pipe, through a plurality of air inlet net frame and enter test box body, heat treatment is carried out to the elastic clamp of the connection between oil inlet pipe and connecting oil outlet pipe, and the cold -air supply structure can be blown into the cold -air to test box body, and the cold -resistant sealing effect of elastic clamp is handled, through having set up bidirectional screw rod, sliding block and fixed slide, has realized the output end of motor and drives bidirectional screw rod rotation, and the sliding block of outside symmetry is driven to move when bidirectional screw rod rotates, and fixed slide is driven to move through the sliding block, and fixed slide drives sealed observation door to slide at the one side of test box body, and the opening and closing adjustment of sealed observation door is handled conveniently.

Description

Technical Field

[0001] This utility model relates to the field of test chamber technology, specifically a sealed environment test chamber. Background Technology

[0002] Flexible clamps are fasteners used on pipes or circular objects, typically manufactured from materials such as spring steel (e.g., 65MN spring steel), high-quality manganese steel, or stainless steel spring wire. For example, spring clamps made from 65MN spring steel are stamped and passivated with galvanized steel, achieving a salt spray corrosion resistance of over 800 hours. They are generally formed into a circular shape in a single stamping process, with two hand-pressing tabs on the outer ring. Pressing the tabs enlarges the inner ring, allowing it to fit over the object; releasing the tabs clamps the object securely. There are also open-type inner and outer ring structures that are tightened with bolts. However, existing testing methods for the sealing performance of flexible clamps under different environmental conditions are relatively limited. Traditional testing methods often only perform tests at room temperature or in a single environment, failing to fully simulate the extreme environments that flexible clamps may encounter in actual applications. This makes it difficult for test results to accurately reflect the performance of flexible clamps in real-world use, thus increasing the risk of equipment operation failure. Utility Model Content

[0003] The purpose of this invention is to provide a sealed environment test chamber to address the problem mentioned in the background art that the existing testing methods for the sealing performance of elastic clamps under different environmental conditions are relatively limited. Traditional testing methods are often only carried out under normal temperature or single environmental conditions, which cannot fully simulate the extreme environments that elastic clamps may encounter in actual applications. This makes it difficult for the test results to accurately reflect the performance of elastic clamps in actual use, thereby increasing the risk of equipment operation.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a sealed environment test chamber, comprising: Test chamber; An oil inlet pipe is equidistantly arranged inside the test chamber, and multiple oil outlet pipes that cooperate with the oil inlet pipe are equidistantly arranged inside the test chamber. The air intake mesh frame is equidistantly arranged inside the test chamber. A ventilation box is installed on one side of the test chamber, and the ventilation box is connected to the air inlet frame via a duct. A three-way pipe is fixed to one side of the ventilation box. One end of the three-way pipe is connected to the insulated ventilation box through a duct. Multiple electric heating wires are arranged at equal intervals inside the insulated ventilation box. A fan is installed on one side of the ventilation box. The input end of the fan is equipped with a filter screen, and the output end of the fan is connected to the insulated ventilation box through a duct. The other end of the three-way pipe is equipped with a cold air supply structure. A sealed observation door is symmetrically slidably installed on one side of the test chamber.

[0005] As a preferred embodiment of this utility model: a side fixing box is fixedly connected to one side of the test chamber, a bidirectional lead screw is rotatably installed inside the side fixing box, sliding blocks are symmetrically installed on the outer side of the bidirectional lead screw, the sliding blocks are slidably connected to the side fixing box, a motor is installed on one side of the side fixing box by bolts, the output end of the motor is fixedly connected to the bidirectional lead screw, a fixed slide is fixedly connected to the bottom of the sliding block, the fixed slide is slidably connected to the side fixing box, and one side of the fixed slide is fixedly connected to the sealed observation door.

[0006] As a preferred embodiment of the present invention: a sealing side strip is fixedly connected to one side of one of the sealed observation doors, and a sealing side groove that cooperates with the sealing side strip is provided on one side of the other sealed observation door.

[0007] As a preferred embodiment of this utility model: an air outlet box is fixedly connected to the bottom of the test chamber, an air outlet pipe is fixedly connected to the top of the air outlet box, the air outlet pipe is fixedly connected to the test chamber, and a filter screen is fixedly connected inside the air outlet box.

[0008] As a preferred embodiment of this utility model: sealing rings are fixedly connected to the outer sides of both the oil inlet pipe and the connecting oil outlet pipe, the sealing rings are fixedly connected to the test chamber, and a solenoid valve is installed on both the oil inlet pipe and the connecting oil outlet pipe.

[0009] As a preferred embodiment of this utility model: a drain pipe is fixedly connected to one side of the test chamber, a No. 3 solenoid valve is installed on the drain pipe, a No. 2 solenoid valve is symmetrically installed on the three-way pipe, and a temperature sensor is installed inside the test chamber.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model, by setting up an insulated ventilation box, an electric heating wire, and a three-way pipe, realizes that the air entering the insulated ventilation box is heated by the electric heating wire, and the heated air enters the ventilation box through the three-way pipe, and enters the test chamber through multiple air inlet mesh frames to heat the elastic clamp connecting the oil inlet pipe and the oil outlet pipe. Combined with the cold air supply structure, cold air can be blown into the test chamber to test the cold resistance and sealing effect of the elastic clamp. By setting up a bidirectional lead screw, a sliding block, and a fixed slide, the output end of the motor drives the bidirectional lead screw to rotate. When the bidirectional lead screw rotates, it drives the outer symmetrical sliding block to move. The sliding block drives the fixed slide to move, and the fixed slide drives the sealed observation door to slide on one side of the test chamber, which facilitates the opening and closing adjustment of the sealed observation door. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the internal structure of this utility model; Figure 2 This is the left view of the present invention; Figure 3 This is a schematic diagram of the opening of the sealed observation door of this utility model.

[0012] In the diagram: 1. Test chamber; 2. Exhaust chamber; 3. Filter screen; 4. Exhaust pipe; 5. Inlet mesh frame; 6. Temperature sensor; 7. Oil inlet pipe; 8. Connecting oil outlet pipe; 9. Solenoid valve No. 1; 10. Sealing ring; 11. Drain pipe; 12. Ventilation box; 13. Sealed observation door; 14. Fixed slide; 15. Sliding block; 16. Two-way lead screw; 17. Motor; 18. Side fixing box; 19. Sealing side strip; 20. Sealing side groove; 21. T-pipe; 22. Insulated ventilation box; 23. Electric heating wire; 24. Fan; 25. Filter screen tube; 26. Solenoid valve No. 2. Detailed Implementation

[0013] 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.

[0014] Please see Figures 1 to 3 This utility model provides a technical solution: a sealed environment test chamber, comprising: a test chamber body 1; an oil inlet pipe 7 equidistantly arranged inside the test chamber body 1, and multiple oil outlet pipes 8 equidistantly arranged inside the test chamber body 1 to cooperate with the oil inlet pipe 7; an air inlet mesh frame 5 equidistantly fixed inside the test chamber body 1; a ventilation box 12 bolted to one side of the test chamber body 1, and the ventilation box 12 and the air inlet mesh frame 5 connected by a duct; a three-way pipe 21 fixed to one side of the ventilation box 12, one end of the three-way pipe 21 connected to an insulated ventilation box 22 via a duct, and multiple electric heating wires 23 equidistantly arranged inside the insulated ventilation box 22; a fan 24 bolted to one side of the ventilation box 12, the input end of the fan 24 fixedly connected to a filter screen 25, the output end of the fan 24 connected to the insulated ventilation box 22 via a duct, and the other end of the three-way pipe 21 provided with a cold air supply structure; and a sealed observation door 13 symmetrically slidably arranged on one side of the test chamber body 1.

[0015] It should be noted that in this embodiment, the oil inlet pipe 7 and the connecting oil outlet pipe 8 are connected by an elastic clamp. Sampling installation is performed using the elastic clamp required for the sealing test. The output end of the motor 17 drives the bidirectional lead screw 16 to rotate. When the bidirectional lead screw 16 rotates, it moves the outer symmetrical sliding blocks 15. When the sliding blocks 15 move, they move and adjust the fixed slide 14. The fixed slide 14 then moves and adjusts the sealing observation door 13 on one side of the test chamber 1. The sealing side strip 19 on one side of one sealing observation door 13 merges with the sealing side groove 20 on the other side of the sealing observation door 13, completing the sealing. When testing the sealing effect of the elastic clamp under high temperature conditions, open the second solenoid valve 26 near the side of the insulated ventilation box 22, while keeping the other second solenoid valve 26 closed. Air is blown into the insulated ventilation box 22 by the fan 24. The input end of the fan 24 is connected to a filter screen 25, which filters impurities from the air. The air is then heated by multiple electric heating wires 23 inside the insulated ventilation box 22. After heating, the air enters the ventilation box 12 through the three-way pipe 21, and then enters the air intake frame 5 inside the test chamber 1. Simultaneously, air is introduced into the oil inlet pipe 7. Test oil is injected into the system. The oil inlet pipe 7 and the connecting oil outlet pipe 8 are connected by an elastic clamp. The sealing effect of the elastic clamp between the oil inlet pipe 7 and the connecting oil outlet pipe 8 is tested by high-temperature gas. When it is necessary to test the cold-resistant sealing effect of the elastic clamp, the internal hot air is discharged and recycled through the air outlet box 2, filter screen 3 and air outlet pipe 4. The cold air supply structure inputs cold air into the three-way pipe 21, ventilation box 12 and air inlet mesh frame 5. The cold air supply structure includes: a compressor: compressing low-temperature and low-pressure refrigerant vapor into high-temperature and high-pressure vapor to provide power for the refrigeration cycle; and a condenser: where the high-temperature and high-pressure refrigerant vapor is condensed. It exchanges heat with room temperature air or water, releasing heat and liquefying into a high-pressure liquid; throttling device, capillary tube or expansion valve: the high-pressure liquid refrigerant is depressurized through the throttling device, becoming low-temperature, low-pressure wet vapor, and simultaneously reaching the evaporation temperature, preparing for the evaporator to absorb heat; evaporator: the low-temperature, low-pressure refrigerant boils and vaporizes in the evaporator; three-way pipe 21: serves as the distribution hub for cold air delivery; cold air delivery power source: an external fan delivers the low-temperature cold air generated by the evaporator to the test chamber 1 through the pipeline. The staff checks the internal elastic clamps for oil leakage through the sealed observation door 13 to test the sealing effect.

[0016] In one embodiment, such as Figures 1 to 3As shown, a side fixing box 18 is fixedly connected to one side of the test chamber 1. A bidirectional lead screw 16 is rotatably installed inside the side fixing box 18. Sliding blocks 15 are symmetrically installed on the outer side of the bidirectional lead screw 16. The sliding blocks 15 are slidably connected to the side fixing box 18. A motor 17 is installed on one side of the side fixing box 18 by bolts. The output end of the motor 17 is fixedly connected to the bidirectional lead screw 16. A fixed slide 14 is fixedly connected to the bottom of the sliding block 15. The fixed slide 14 is slidably connected to the side fixing box 18. One side of the fixed slide 14 is fixedly connected to the sealed observation door 13.

[0017] It should be noted that in this embodiment, when the bidirectional lead screw 16 rotates, it drives the outer symmetrical sliding block 15 to move. The sliding block 15 drives the fixed slide 14 and the sealed observation door 13 to move, which facilitates the opening and closing adjustment of the sealed observation door 13 on one side of the test chamber 1.

[0018] In one embodiment, such as Figures 1 to 3 As shown, a sealing side strip 19 is fixed to one side of one of the sealed observation doors 13, and a sealing side groove 20 that cooperates with the sealing side strip 19 is provided on one side of the other sealed observation door 13.

[0019] It should be noted that in this embodiment, the sealing side strip 19 on one side of one of the sealed observation doors 13 cooperates with the sealing side groove 20 on one side of the other sealed observation door 13 to improve the sealing effect after the two sealed observation doors 13 are closed.

[0020] In one embodiment, such as Figures 1 to 3 As shown, an air outlet box 2 is fixedly connected to the bottom of the test chamber 1, and an air outlet pipe 4 is fixedly connected to the top of the air outlet box 2. The air outlet pipe 4 is fixedly connected to the test chamber 1, and a filter screen 3 is fixedly connected inside the air outlet box 2.

[0021] It should be noted that in this embodiment, the gas inside the test chamber 1 is discharged through the gas outlet box 2 and the gas outlet pipe 4, and the high-temperature and low-temperature gas discharged from the gas outlet pipe 4 is recycled and reused.

[0022] In one embodiment, such as Figures 1 to 3 As shown, sealing rings 10 are fixedly connected to the outside of the oil inlet pipe 7 and the connecting oil outlet pipe 8. The sealing rings 10 are fixedly connected to the test chamber 1. A solenoid valve 9 is installed on both the oil inlet pipe 7 and the connecting oil outlet pipe 8.

[0023] It should be noted that in this embodiment, the connection between the oil inlet pipe 7 and the oil outlet pipe 8 is controlled by the No. 1 solenoid valve 9, and the sealing effect between the oil inlet pipe 7, the oil outlet pipe 8 and the test chamber 1 is improved by the sealing ring 10.

[0024] In one embodiment, such as Figures 1 to 3As shown, a drain pipe 11 is fixed to one side of the test chamber 1. A solenoid valve No. 3 is installed on the drain pipe 11. A solenoid valve No. 26 is symmetrically installed on the three-way pipe 21. A temperature sensor 6 is installed inside the test chamber 1.

[0025] It should be noted that in this embodiment, the temperature inside the test chamber 1 is monitored and processed in real time by temperature sensor 6.

[0026] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] Furthermore, the terms “first,” “second,” “third,” and “fourth” are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as “first,” “second,” “third,” or “fourth” may explicitly or implicitly include at least one of those features.

[0028] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] Although embodiments of the present invention 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 the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sealed environment test chamber, characterized in that, include: Test chamber (1); An oil inlet pipe (7) is equidistantly arranged inside the test chamber (1), and multiple oil outlet pipes (8) that cooperate with the oil inlet pipe (7) are equidistantly arranged inside the test chamber (1). An air intake mesh frame (5) is equidistantly arranged inside the test chamber (1); Ventilation box (12) is installed on one side of test chamber (1), and the ventilation box (12) is connected to the air inlet mesh frame (5) by air duct; A three-way pipe (21) is fixed to one side of the ventilation box (12). One end of the three-way pipe (21) is connected to an insulated ventilation box (22) through a duct. Multiple electric heating wires (23) are arranged equidistantly inside the insulated ventilation box (22). Fan (24) is installed on one side of ventilation box (12). The input end of the fan (24) is equipped with a filter screen (25). The output end of the fan (24) is connected to the insulated ventilation box (22) through a duct. The other end of the three-way pipe (21) is equipped with a cold air supply structure. A sealed observation door (13) is symmetrically slidably set on one side of the test chamber (1).

2. The sealed environment test chamber according to claim 1, characterized in that: A side fixing box (18) is fixedly connected to one side of the test chamber (1). A double-acting screw (16) is rotatably installed inside the side fixing box (18). A sliding block (15) is symmetrically installed on the outside of the double-acting screw (16). The sliding block (15) is slidably connected to the side fixing box (18). A motor (17) is installed on one side of the side fixing box (18) by bolts. The output end of the motor (17) is fixedly connected to the double-acting screw (16). A fixed slide (14) is fixedly connected to the bottom of the sliding block (15). The fixed slide (14) is slidably connected to the side fixing box (18). One side of the fixed slide (14) is fixedly connected to the sealed observation door (13).

3. A sealed environment test chamber according to claim 1, characterized in that: One of the sealed observation doors (13) has a sealing side strip (19) fixedly connected to one side, and the other sealed observation door (13) has a sealing side groove (20) that cooperates with the sealing side strip (19) on one side.

4. A sealed environment test chamber according to claim 1, characterized in that: The bottom of the test chamber (1) is fixedly connected to an air outlet box (2), the top of the air outlet box (2) is fixedly connected to an air outlet pipe (4), the air outlet pipe (4) is fixedly connected to the test chamber (1), and a filter screen (3) is fixedly connected inside the air outlet box (2).

5. A sealed environment test chamber according to claim 1, characterized in that: A sealing ring (10) is fixedly connected to the outside of the oil inlet pipe (7) and the connecting oil outlet pipe (8). The sealing ring (10) is fixedly connected to the test chamber (1). A solenoid valve (9) is installed on the oil inlet pipe (7) and the connecting oil outlet pipe (8).

6. A sealed environment test chamber according to claim 1, characterized in that: A drain pipe (11) is fixedly connected to one side of the test chamber (1). A No. 3 solenoid valve is installed on the drain pipe (11). A No. 2 solenoid valve (26) is symmetrically installed on the three-way pipe (21). A temperature sensor (6) is installed inside the test chamber (1).

Images