Sealed drainage device for environmental test box

Abstract

The utility model relates to the technical field of environmental test boxes, in particular to a sealing drainage device for an environmental test box, which comprises a drainage pipe connected with a drainage port of an environmental test box body, and a sealing component is arranged at the drainage port of the drainage pipe. When water exists in the environmental test box water tank, water enters the drainage pipe from the drainage pipe inlet, the inner wall of the drainage pipe flows to the bottom of the water container, when the water level in the water container rises to the lowest height of the overflow port, the water overflows from the overflow port and flows to the external drainage tank, and meanwhile the water in the water container submerges the drainage pipe outlet. Air in the environment test box is isolated from air in an external drainage groove, the sealing problem of the drainage port of the environment test box is solved through a simple mechanism, and all problems caused by air leakage of the drainage port of the environment test box are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of environmental test chambers, in particular to a sealing drainage device used in environmental test chambers. Background Art

[0002] The existing environmental test chamber drainage device generally does not consider the air tightness of the drainage device. If the drainage device is not airtight, it is easy for air to enter the environmental test chamber from the drainage device, and bring in some water vapor, forming frost on the evaporator surface. When the frosted layer on the evaporator surface is thick enough, the heat exchange efficiency of the evaporator will be seriously affected, and the flowing liquid refrigerant in the evaporator cannot be completely evaporated, and returns to the compressor, causing liquid hammer in the compressor and thus damaging the compressor. For this reason, we propose a sealed drainage device for an environmental test chamber. Utility Model Content

[0003] A technical problem to be solved by the present application is: how to design a drainage device that can prevent compressor liquid hammer damage caused by air leakage at the drainage port.

[0004] To solve the above technical problems, an embodiment of the present application provides a sealed drainage device for an environmental test chamber, including a drainage pipe connected to a drainage port of the environmental test chamber, and a sealing component is provided at the drainage port of the drainage pipe.

[0005] In some embodiments, the drain pipe is an L-shaped structure with a 90-degree arc angle, and one end thereof away from the environmental test chamber is vertically downward;

[0006] The sealing component includes a water container arranged at the end of the drain pipe, and a drainage groove is arranged on the outside of the water container. The water container is seamlessly fixed to the drainage groove, and an overflow port is opened on the side wall of the water container. The bottom end of the drain pipe is located below the overflow port, and the position below the overflow port in the water container is filled with water.

[0007] In some embodiments, the arc-angle bend in the middle section of the drain pipe is a bellows, the water container is sleeved on the outside of the drain pipe, and a rubber outer sleeve is sleeved on the outside of the drain pipe.

[0008] In some embodiments, the water container is fixedly connected to the drain pipe.

[0009] The utility model has at least the following beneficial effects:

[0010] Different from the prior art, when there is water in the water tank of the environmental test chamber, water enters the drain pipe from the drain pipe inlet, flows from the inner wall of the drain pipe to the bottom of the water container, and when the water level in the water container rises to the lowest height of the overflow port, it overflows from the overflow port and flows into the external drain tank. At the same time, the water in the water container submerges the drain pipe outlet, isolating the air in the environmental test chamber from the air in the external drain tank. A simple mechanism solves the sealing problem of the drain port of the environmental test chamber, and solves all problems caused by air leakage at the drain port of the environmental test chamber. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present utility model;

[0012] Figure 2 This is a schematic diagram of the structure of the sealing component of the utility model;

[0013] Figure 3 This is a schematic diagram of the overall structure of Embodiment 2 of the present utility model;

[0014] Figure 4 This is a schematic diagram of the overall structure of Example 3 of the utility model.

[0015] In the figure: 1. Environmental test box; 2. Drain pipe; 3. Sealing component; 31. Water container; 32. Drain trough; 33. Overflow port; 34. Rubber outer sleeve; 35. Hanging ring; 36. Mounting ring; 37. Sealing gasket; 38. Tension spring. DETAILED DESCRIPTION

[0016] 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.

[0017] Example 1

[0018] See also Figure 1-2 The utility model provides a technical solution: a sealed drainage device for an environmental test chamber, comprising a drainage pipe 2 connected to a drainage port of an environmental test chamber body 1, and a sealing component 3 is arranged at the drainage port of the drainage pipe 2.

[0019] It should be noted that the drain pipe 2 is an L-shaped structure with a 90-degree arc angle, and the end thereof away from the environmental test box 1 is vertically downward;

[0020] The sealing component 3 includes a water container 31 arranged at the end of the drain pipe 2. It should be noted that the water container 31 is fixedly connected to the drain pipe 2, and a drainage groove 32 is arranged on the outside of the water container 31. The water container 31 and the drainage groove 32 are seamlessly fixed, and an overflow port 33 is opened on the side wall of the water container 31. The bottom end of the drain pipe 2 is located below the overflow port 33, and the position below the overflow port 33 in the water container 31 is filled with water.

[0021] In this way, during actual use, since the position below the overflow port 33 in the water container 31 is filled with water, and the bottom drainage position of the drain pipe 2 is located below the overflow port 33 and is always in the water body, the drain pipe 2 can be continuously water-sealed by real-time drainage to effectively prevent water vapor from entering the interior of the environmental test chamber 1.

[0022] Example 2

[0023] See also Figure 3 The utility model provides another technical solution for connecting the drain pipe 2 and the water container 31: the arc-angle bending position in the middle section of the drain pipe 2 is a corrugated tube, the water container 31 is sleeved on the outside of the drain pipe 2, and a rubber outer sleeve 34 is sleeved on the outside of the drain pipe 2. Through such a design, especially when the overflow port 33 of the water container 31 may be blocked by external dust and debris during continuous use, the drain pipe 2 can be directly disconnected from the water container 31, thereby facilitating the handling of foreign matter inside the water container 31 and ensuring the continuous use of the device.

[0024] Different from Example 1, this design can more conveniently handle foreign objects inside the water container 31 and the overflow port 33, but its stability is not as good as Example 1, especially during long-term continuous use, the relative stability of the drain pipe 2, the water container 31 and the overflow port 33 will not shift, ensuring stable use.

[0025] Example 3

[0026] See also Figure 4 On the basis of Example 1, the utility model provides an optimized technical solution: the sealing component 3 also includes a hanging ring 35 installed in the drain pipe 2, and a mounting ring 36 fixed in the drain pipe 2 is also provided on the side of the hanging ring 35 away from the environmental test box 1, a sealing gasket 37 is provided on the side of the mounting ring 36 away from the hanging ring 35, and a tension spring 38 is provided between the hanging ring 35 and the sealing gasket 37.

[0027] In this way, each time water is drained, the impact sealing gasket 37 will be moved away from the mounting ring 36, and the tension spring 38 will be stretched to drain water normally. After the drainage is completed, the tension spring 38 will pull the sealing gasket 37 back to close to the mounting ring 36 to seal and isolate the position inside the drain pipe 2. It should be noted that the height of the sealing gasket 37 should be higher than the overflow port 33, so that the drain pipe 2 can be isolated from the water container 31, further effectively preventing water vapor from entering the environmental test chamber.

[0028] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sealed drainage device for an environmental test chamber, comprising a drainage pipe (2) connected to a drainage port of an environmental test chamber (1), characterized in that: A sealing component (3) is provided at the drain outlet of the drain pipe (2); The drainage pipe (2) is an L-shaped structure with a 90-degree arc angle, and one end thereof away from the environmental test chamber (1) is vertically downward; The sealing component (3) comprises a water container (31) arranged at the end of the drainage pipe (2), and a drainage groove (32) is arranged outside the water container (31), the water container (31) and the drainage groove (32) are seamlessly fixed, and an overflow port (33) is opened on the side wall of the water container (31), the bottom end of the drainage pipe (2) is located below the overflow port (33), and the position below the overflow port (33) in the water container (31) is filled with water.

2. The sealing and drainage device for an environmental test chamber according to claim 1, characterized in that: The arc-angle bend in the middle section of the drainage pipe (2) is a corrugated pipe, the water container (31) is sleeved on the outside of the drainage pipe (2), and a rubber outer sleeve (34) is sleeved on the outside of the drainage pipe (2).

3. The sealing and drainage device for an environmental test chamber according to claim 1, characterized in that: The water container (31) is fixedly connected to the drainage pipe (2).

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