Constant temperature and humidity test box

Abstract

The utility model relates to the technical field of test boxes, in particular to a constant-temperature and constant-humidity test box which comprises a box body and further comprises a rotating system, the rotating system penetrates through and is rotatably installed on the wall of the box body, and a steam input part and a steam recovery part which are communicated with an inner cavity are arranged at the end, located in the inner cavity of the box body, of the rotating system. One end, positioned outside the box body, of the rotating system is respectively connected with a steam supply pipe and a steam return pipe, the steam return pipe is communicated with the steam recovery part, and the steam supply pipe is communicated with the steam input part; the power part and the box body are relatively fixedly mounted, and the power part is used for providing power for the rotating system to enable the rotating system to rotate, and is used for solving the technical problem that in the prior art, the water steam pumping position and the water steam filling position are relatively fixed, so that the filled new water steam cannot be uniformly distributed in the test box.

Description

Technical Field

[0001] The utility model relates to the technical field of test boxes, in particular to a constant temperature and humidity test box. Background Art

[0002] Constant temperature and humidity test chamber is used to test the performance of materials in various environments and to test the heat resistance, cold resistance, dryness resistance and moisture resistance of various materials. Constant temperature and humidity test chamber is widely used in production and scientific research.

[0003] In order to maintain the internal temperature and humidity, the constant temperature and humidity test chamber will be filled with water vapor at a certain temperature, which can control the temperature while controlling the humidity. When new water vapor is filled, the water vapor that has changed temperature inside will be extracted, so that the internal temperature can be controlled more accurately. However, the water vapor extraction position and water vapor filling position of the existing constant temperature and humidity test chamber are relatively fixed, resulting in the new water vapor filled not being evenly distributed inside the test chamber, thus affecting the accuracy of the test results. To this end, a constant temperature and humidity test chamber is proposed. Utility Model Content

[0004] The utility model aims to provide a constant temperature and humidity test chamber, which is used to solve the technical problem that the positions of extracting water vapor and filling water vapor in the prior art are relatively fixed, resulting in that the newly filled water vapor cannot be evenly distributed inside the test chamber, thus affecting the accuracy of test data.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A constant temperature and humidity test box, comprising a box body, and also comprising:

[0007] A rotating system, which penetrates and is rotatably mounted on the wall of the box body, a steam input part and a steam recovery part communicated with the inner cavity are arranged at one end of the rotating system located in the inner cavity of the box body, and a steam supply pipe and a steam return pipe are respectively connected to the one end of the rotating system located outside the box body, the steam return pipe is communicated with the steam recovery part, and the steam supply pipe is communicated with the steam input part;

[0008] The power unit is fixedly installed relative to the box body and is used to provide power to the rotating system to make it rotate.

[0009] Furthermore, the rotation system comprises:

[0010] The central through-axis is rotatably mounted on the side wall of the box body and is synchronously rotatably mounted with the power output end of the power unit;

[0011] The through-hole bent rod passes through the central through-axis and is fixedly installed relative to the central through-axis. The through-hole bent rod includes an air supply channel and a reflux channel. One end of the air supply channel extends to the inner cavity of the box body and is connected to the steam input part, and the other end extends to the outside of the box body and is connected to the steam supply pipe. One end of the reflux channel extends to the inner cavity of the box body and is connected to the steam recovery part, and the other end extends to the outside of the box body and is connected to the steam reflux pipe.

[0012] Furthermore, both the steam input part and the steam recovery part adopt a perforated plate, the shape of the perforated plate is an arc shape of the internal cavity, and the two perforated plates are distributed in a circular array with the axis of the central perforated shaft as the center.

[0013] Furthermore, the through hole bent rod is configured as a U-shaped structure with a central cavity, the middle portion of the U-shaped structure is fixedly installed relative to the central through axis, and the two ends of the U-shaped structure are respectively located in the inner cavity of the box and outside the box.

[0014] Furthermore, a ring plate is installed on the inner wall of the box body, and the ring plate is used to provide a guide track for the running track of the perforated plate.

[0015] Furthermore, a circular groove is provided on the ring plate, and the groove is used for the hollow circular tube to be inserted and slide along it. The hollow circular tube is respectively connected to the through-hole plate and the sliding tube. The other end of the sliding tube is connected to the through-hole bent rod and cooperates with it in a sliding seal.

[0016] Furthermore, a circular ring and a sleeve are respectively arranged between the air supply channel and the steam air supply pipe, and between the return channel and the steam return pipe. The circular ring and the sleeve are installed in a sealed and rotatable manner. A cavity for containing steam is formed between the circular ring and the sleeve. The circular ring is connected to the air supply channel of the through-hole bent rod and rotates synchronously. The sleeve is fixedly installed relative to the box.

[0017] Furthermore, a fan blade rack is coaxially mounted on the central through-axis, and the fan blade rack is located inside the box and is mounted with a plurality of fan blades.

[0018] Furthermore, a support platform fixedly installed relative to the box body is also arranged inside the box body, the support platform is located between the two perforated plates and is provided with a plurality of through holes, and a plurality of support rods are arranged on the upper surface of the support platform.

[0019] Furthermore, the power unit includes an electric motor fixedly mounted relative to the box body, and a power output end of the electric motor is connected to the central shaft for synchronous rotation via a conveyor belt.

[0020] Compared with the prior art, the technical solution of the utility model has the following beneficial effects:

[0021] (1). The utility model sets a central through-shaft, a through-hole bent rod, a through-hole plate and a sleeve ring. The return pipe and the air supply pipe respectively pass through the through-hole bent rod and the sliding pipe to make the two through-hole plates spray out water vapor and absorb water vapor respectively. When the central through-shaft rotates, the two through-hole bent rods and the two sliding pipes drive the two through-hole plates to rotate around the central through-shaft, so that the positions of the through-hole plates spraying water vapor and absorbing water vapor are constantly changed, so that the new water vapor can be evenly filled in the box body, and the old water vapor can be extracted from different positions at the same time; by setting the shape and position of the through-hole bent rod and the through-hole plate, the uniformity of the steam inside the box body is further improved.

[0022] (2) The utility model guides the movement trajectory of the perforated plate by setting a ring plate, with the help of a hollow circular tube and a sliding tube, thereby limiting the movement route of the perforated plate and improving the operation stability of the device; by setting a fan blade frame, the central perforated shaft rotates to drive the fan blade frame to rotate, and the fan blade frame rotates to stir the water vapor inside, so that the water vapor can be evenly contacted with the sample inside; by setting a circular ring and a sleeve ring, the central perforated shaft rotates while the air supply pipe and the return pipe remain stationary, which is convenient for connecting the external air supply equipment and the exhaust equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of the utility model;

[0024] Figure 2 This is a schematic diagram of the internal structure of the box of the utility model;

[0025] Figure 3 It is a schematic diagram of the partial structure of the utility model;

[0026] Figure 4 This is a schematic diagram of the connection between the through-hole bent rod and the sliding tube of the utility model;

[0027] Figure 5 It is a right side schematic diagram of part of the structure of the utility model;

[0028] Figure 6 It is a schematic diagram of the connection between the circular ring and the sleeve ring of the utility model.

[0029] In the figure: 1, box body; 2, central through-axis; 3, through-hole bent rod; 4, sliding tube; 5, hollow circular tube; 6, through-hole plate; 7, power unit; 71, motor; 72, conveyor belt; 8, ring; 9, return pipe; 10, air supply pipe; 11, sleeve ring; 12, support platform; 13, fan blade frame; 14, ring plate. DETAILED DESCRIPTION

[0030] 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.

[0031] The drawings are for illustrative purposes only and should not be construed as limiting the present patent;

[0032] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the embodiments of the present application. The singular forms of "a", "said" and "the" used in the embodiments of the present application and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0033] When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Instead, they are only examples of devices and methods consistent with some aspects of the present application as detailed in the attached claims.

[0034] In the description of this application, it should be understood that the terms "first", "second", "third", etc. are only used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence, nor can they be understood as indicating or implying relative importance. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0035] In addition, in the description of this application, unless otherwise specified, "plurality" means two or more than two. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the previous and next associated objects are in an "or" relationship. The following is a further explanation of the present invention in conjunction with the accompanying drawings and embodiments.

[0036] In order to solve the limitations of the prior art, this embodiment provides a technical solution, and the technical solution of the utility model is further described below in conjunction with the drawings and embodiments.

[0037] The technical solution of the utility model is mainly aimed at optimizing and improving the phenomenon that the internal steam distribution of the constant temperature and humidity test box is generally uneven in the prior art, resulting in low accuracy of the test data. The specific solution is as follows:

[0038] See attached Figure 1 , 2 , 5, 6, a constant temperature and humidity test box, comprising a box body 1, a rotating system and a power unit 7, wherein the rotating system penetrates and is rotatably installed on the wall of the box body 1, and one end of the rotating system located in the inner cavity of the box body 1 is provided with a steam input part and a steam recovery part connected to the inner cavity. The purpose of setting the rotating system to penetrate and rotate here is to achieve variable positions of the steam input part and the steam recovery part inside the box body 1, and one end of the rotating system located outside the box body 1 is respectively connected to a steam supply pipe 10 and a steam return pipe 9, the steam return pipe 9 is connected to the steam recovery part, the steam supply pipe 10 is connected to the steam input part, the steam supply pipe 10 is connected to the steam supply equipment, and the steam return pipe 9 is connected to the external exhaust equipment;

[0039] Specifically, see Appendix Figure 2-5The rotation system includes a central transparent shaft 2 and a through-hole bent rod 3. The central transparent shaft 2 is rotatably mounted on the side wall of the box body 1 through a bearing and is synchronously rotatably mounted with the power output end of the power unit 7; the through-hole bent rod 3 passes through the central transparent shaft 2 and is fixedly mounted relatively to the central transparent shaft 2. The through-hole bent rod 3 is arranged as a U-shaped structure with a central cavity. A U-shaped tube can be adopted. The middle part of the U-shaped structure is fixedly mounted relatively to the central transparent shaft 2. The two ends of the U-shaped structure are respectively located in the inner cavity of the box body 1 and the outside of the box body 1. Two through-hole bent rods 3 are arranged. The main purpose is to provide two channels connecting the inner cavity of the box body 1 and the outside of the box body 1. Specifically, the through-hole bent rod 3 includes an air supply channel and a reflux channel. One end of the air supply channel extends to the inner cavity of the box body 1 and is connected to the steam input part, and the other end extends to the outside of the box body 1 and is connected to the steam supply pipe 10. One end of the reflux channel extends to the inner cavity of the box body 1 and is connected to the steam recovery part, and the other end extends to the outside of the box body 1 and is connected to the steam reflux pipe 9. Specifically, the steam input part and the steam recovery part both adopt a perforated plate 6. The shape of the perforated plate 6 is an arc of the internal cavity. The two perforated plates 6 are distributed in a circular array with the axis of the central perforated shaft 2 as the center. When in use, one perforated plate 6 inputs water vapor into the inner cavity of the box body 1, and the other perforated plate 6 draws the water vapor in the inner cavity of the box body 1 out of the box body 1. A group of circular rings 8 and sleeves 11 are respectively arranged between the air supply channel and the steam air supply pipe 10, and between the return channel and the steam return pipe 9. The positions of the two groups of circular rings 8 and sleeves 11 are staggered along the axial direction of the central through shaft 2. The circular rings 8 and sleeves 11 are sealed and coaxially rotatably installed. A cavity for containing steam is formed between the circular rings 8 and the sleeves 11. One group of circular rings 8 is connected to the air supply channel of the through-hole bent rod 3 and rotates synchronously, and the sleeve 11 is relatively fixedly installed with respect to the casing 1. The other group of circular rings 8 is connected to the return channel of the ventilation bent rod and rotates synchronously, and the sleeve 11 is also relatively fixedly installed with respect to the casing 1. The main purpose of arranging the circular rings 8 and sleeves 11 here is to realize that while the central through shaft 2 rotates, the air supply pipe 10 and the return pipe 9 remain stationary, so as to facilitate the connection with external air supply equipment and exhaust equipment.

[0040] See attached Figure 2 and 4 The power unit 7 is fixedly installed relative to the box body 1, and is used to provide power for the rotating system to rotate. Specifically, the power unit 7 includes an electric motor 71 fixedly installed relative to the box body 1, and the power output end of the electric motor 71 is connected to the central shaft 2 for synchronous rotation through a transmission belt 72 combined with a pulley.

[0041] See attached Figure 2 and 5, a ring plate 14 is installed on the inner wall of the box body 1. The shape of the ring plate 14 can be set to a circular shape or a shape that matches the inner cavity of the box body 1. The ring plate 14 is used to provide a guide track for the running track of the perforated plate 6. Specifically, a round groove is set on the ring plate 14. Here, the round groove can be understood as a groove that is connected from end to end. The groove is used for the hollow circular tube 5 to be inserted and slide along it. The hollow circular tube 5 is connected to the perforated plate 6 and the sliding tube 4 respectively. Here, the hollow circular tube 5 can be a three-way tube, one interface is connected to the perforated plate 6, one interface is connected to the sliding tube 4, and the other interface is sealed and slides in the groove. The other end of the sliding tube 4 is connected to the through-hole bent rod 3 and cooperates with it in a sliding seal. The main purpose of the sliding seal cooperation here is to be suitable for non-circular ring plates 14. Because the non-circular ring plate 14, when the perforated plate 6 rotates following the through-hole bent rod 3, the running track of the perforated plate 6 is not circular, and its distance from the rotation center is variable. Therefore, the sliding seal installation between the sliding tube 4 and the through-hole bent rod 3 can achieve this requirement.

[0042] See attached Figure 2 and 3 A fan blade frame 13 is coaxially mounted on the central through-hole shaft 2. The fan blade frame 13 is located inside the box body 1 and is equipped with a plurality of fan blades. The arrangement of the fan blades is conducive to accelerating the uniformity of the steam in the box body 1. A support platform 12 is also arranged inside the box body 1 and is relatively fixedly mounted to the box body 1. The support platform 12 is located between the two through-hole plates 6 and is provided with a plurality of through holes. A plurality of support rods are arranged on the upper surface of the support platform 12. The through holes and the supporting arrangement on the support platform 12 are used to prevent the product from being fully contacted with the water vapor and the sample.

[0043] When using the constant temperature and humidity test box of the utility model, the sample is placed on the support column of the support platform 12 in the box body 1, and the external steam supply equipment is turned on. The water vapor enters the perforated plate 6 through the air supply pipe 10 along the through-hole bent rod 3 via the sliding pipe 4. At the same time, the external exhaust equipment is working, and the water vapor in the inner cavity of the box body 1 enters the sliding pipe 4 via another perforated plate 6 along the other through-hole bent rod 3 and is extracted from the box body 1 by the return pipe 9. At the same time, the motor 71 is working, driving the central perforated shaft 2 to rotate, and at the same time, the two perforated plates 6 rotate synchronously along the ring plate 14, so that the hollow circular tube 5 makes a rotational motion along the ring plate 14. Since the position of the perforated plate 6 is constantly changing, the position of the perforated plate 6 spraying water vapor and absorbing water vapor is constantly changing, so that the newly filled water vapor is evenly filled in the inner cavity of the box body 1, thereby ensuring the uniformity of the water vapor in the box body 1, achieving the purpose of truly constant temperature and humidity, and ultimately improving the accuracy of test data collection.

[0044] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A constant temperature and humidity test chamber, comprising a chamber (1), characterized in that: Also includes: A rotating system, the rotating system penetrates and is rotatably mounted on the wall of the box body (1), one end of the rotating system located in the inner cavity of the box body (1) is provided with a steam input part and a steam recovery part which are in communication with the inner cavity, and one end of the rotating system located outside the box body (1) is respectively connected to a steam supply pipe (10) and a steam return pipe (9), the steam return pipe (9) is in communication with the steam recovery part, and the steam supply pipe (10) is in communication with the steam input part; The power unit (7) is fixedly installed relative to the box body (1) and is used to provide power to the rotating system to make it rotate.

2. A constant temperature and humidity test chamber according to claim 1, characterized in that: The rotation system comprises: A central through-axis (2) is rotatably mounted on the side wall of the box body (1) and is rotatably mounted synchronously with the power output end of the power unit (7); The through-hole bent rod (3) passes through the central through-hole shaft (2) and is fixedly mounted relative to the central through-hole shaft (2). The through-hole bent rod (3) comprises an air supply channel and a return channel. One end of the air supply channel extends to the inner cavity of the box body (1) and is connected to the steam input part, while the other end extends to the outside of the box body (1) and is connected to the steam air supply pipe (10). One end of the return channel extends to the inner cavity of the box body (1) and is connected to the steam recovery part, while the other end extends to the outside of the box body (1) and is connected to the steam return pipe (9).

3. A constant temperature and humidity test chamber according to claim 2, characterized in that: The steam input section and the steam recovery section both use a perforated plate (6), the shape of the perforated plate (6) is an arc shape of the internal cavity, and the two perforated plates (6) are distributed in a circular array with the axis of the central perforated shaft (2) as the center.

4. A constant temperature and humidity test box according to claim 3, characterized in that: The through-hole bent rod (3) is arranged as a U-shaped structure with a central cavity, the middle part of the U-shaped structure is fixedly installed relative to the central through-axis (2), and the two ends of the U-shaped structure are respectively located in the inner cavity of the box body (1) and outside the box body (1).

5. A constant temperature and humidity test box according to claim 4, characterized in that: A ring plate (14) is installed on the inner wall of the box body (1), and the ring plate (14) is used to provide a guide track for the running track of the perforated plate (6).

6. A constant temperature and humidity test box according to claim 5, characterized in that: The ring plate (14) is provided with a circular groove for inserting the hollow circular tube (5) and sliding along the groove. The hollow circular tube (5) is respectively connected to the through-hole plate (6) and the sliding tube (4). The other end of the sliding tube (4) is connected to the through-hole bent rod (3) and cooperates with the through-hole bent rod (3) in a sliding seal.

7. A constant temperature and humidity test box according to claim 6, characterized in that: A group of circular rings (8) and sleeve rings (11) are respectively arranged between the air supply channel and the steam air supply pipe (10) and between the return channel and the steam return pipe (9). The circular rings (8) and the sleeve rings (11) are installed in a sealed and rotatable manner, and a cavity for containing steam is formed between the circular rings (8) and the sleeve rings (11). One group of circular rings (8) is connected to the air supply channel of the through-hole bent rod (3) and rotates synchronously, and the sleeve ring (11) is fixedly installed relative to the box body (1). The other group of circular rings (8) is connected to the return channel of the ventilation bent rod and rotates synchronously, and the sleeve ring (11) is also fixedly installed relative to the box body (1).

8. A constant temperature and humidity test chamber according to any one of claims 2 to 7, characterized in that: A fan blade frame (13) is coaxially mounted on the central through shaft (2); the fan blade frame (13) is located inside the box body (1) and is mounted with a plurality of fan blades.

9. A constant temperature and humidity test box according to claim 8, characterized in that: A support platform (12) is also provided inside the box body (1) and is fixedly mounted relative to the box body (1). The support platform (12) is located between the two perforated plates (6) and is provided with a plurality of through holes. A plurality of support rods are provided on the upper surface of the support platform (12).

10. A constant temperature and humidity test box according to claim 9, characterized in that: The power unit (7) comprises an electric motor (71) fixedly mounted relative to the box body (1), and a power output end of the electric motor (71) is connected to the central shaft (2) in synchronous rotation via a conveyor belt (72).

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