A constant temperature and humidity test chamber

Abstract

The utility model discloses a constant temperature and humidity test box, which belongs to the technical field of test boxes, and comprises a box body, a motor is fixedly installed on the top surface of the box body, the output shaft of the motor penetrates the top surface of the box body and is fixedly connected with a rotating shaft, the bottom end of the rotating shaft is fixedly connected with a rotating plate, a fixed column is longitudinally installed on the bottom surface of the inner cavity of the box body and is located below the rotating plate, a gear is fixedly installed on the top surface of the fixed column and is located below the rotating plate, a connecting plate is sleeved on the circumference of the fixed column, a transmission tooth meshing with the gear is rotatably connected on the top surface of the connecting plate, a pin is fixedly connected on the top surface of the transmission tooth, the transmission tooth and the pin are both arranged directly below the rotating plate, the top end of the pin penetrates to the top surface of the rotating plate and is rotatably connected with a placement plate for placing the object to be tested, and the center point of the fixed column and the gear is at the same longitudinal position as the center point of the rotating shaft. The constant temperature and humidity test box solves the problem that the object to be tested is easily heated or cooled unevenly, and improves the quality of object detection.

Description

Technical Field

[0001] The utility model belongs 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, also known as constant temperature and humidity test machine, constant temperature and humidity experiment chamber, is a device 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. However, the heater or hot air nozzle inside most constant temperature and humidity test chambers is usually set on one side of the chamber, which can easily cause uneven heating or cooling of the object being tested, resulting in a higher temperature on the side of the object being tested close to the heater and a lower temperature on the other side, which causes a large error in the result of the object being tested, thereby reducing the quality of object detection.

[0003] For example, the existing Chinese publication number is: CN209123939U, which is a constant temperature and humidity test box, which: "comprises a box body, the box body is equipped with an electromagnet, a test bench, a connecting plate, a water tank and a box door, the electromagnet is fixedly connected to the right surface of the inner side of the box body, the test bench is fixedly connected to the bottom side of the inner side of the box body, and the connecting plate is fixedly connected to the upper and lower ends of the front side of the box body."

[0004] It can be seen that the cited patent document has the problem that the object being tested is heated or cooled unevenly, which affects the quality of detection. Utility Model Content

[0005] The utility model aims to provide a constant temperature and humidity test box to solve the problems raised in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a constant temperature and humidity test box, including a box body, a motor is fixedly installed on the top surface of the box body, the output shaft of the motor passes through the top surface of the box body and is fixedly connected to a rotating shaft, the bottom end of the rotating shaft is fixedly connected to a rotating plate, a fixed column is longitudinally installed on the bottom surface of the inner cavity of the box body and is located below the rotating plate, a gear is fixedly installed on the top surface of the fixed column and is located below the rotating plate, a connecting plate is sleeved on the circumferential side of the fixed column, the top surface of the connecting plate is rotatably connected to a transmission tooth meshing with the gear, the top surface of the transmission tooth is fixedly connected to a pin shaft, the transmission tooth and the pin shaft are both arranged directly below the rotating plate, and the top end of the pin shaft passes through the top surface of the rotating plate and is rotatably connected to a placement plate for placing the object to be detected.

[0007] Preferably, the center points of the fixing column and the gear are at the same longitudinal position as the center point of the rotating shaft, and the gear and the transmission tooth are arranged in parallel.

[0008] Preferably, one side surface of the rotating plate is arranged in a semicircular shape, and the height of the top surface of the placement plate is higher than the height of the top surface of the rotating plate.

[0009] Preferably, limiting rings are symmetrically installed around the circumference of the fixing column, and the connecting plate is arranged between the two limiting rings.

[0010] Preferably, a circular groove is provided on the top surface of the rotating plate, and the diameter of the circular groove is the same as the diameter of the placement plate.

[0011] Preferably, a through groove for the pin shaft to pass through is formed through the inner cavity bottom surface of the circular groove, and circular sliding grooves are formed in a circular array on the inner cavity bottom surface of the circular groove and outside the through groove.

[0012] Preferably, the inner cavity of the circular chute is provided with a plurality of rolling balls, and the bottom surface of the placement plate abuts against the outer sides of the plurality of rolling balls.

[0013] Compared with the prior art, the technical effects and advantages of the utility model are as follows:

[0014] The constant temperature and humidity test chamber enables the object to be tested placed on the top surface of the placement plate to rotate by arranging a rotating shaft and a rotating plate, and cooperates with the arrangement of gears and transmission teeth to allow the object to be tested to rotate while rotating around the rotating shaft, so that different surfaces of the object to be tested can be moved to one side of the heater, thereby being evenly heated or cooled, avoiding the situation where the temperature of one side of the object to be tested close to the heater is too high and the temperature of the other side is too low, which causes a large error in the detection result, thereby improving the quality of object detection.

[0015] The connection plate and the limit ring are arranged to ensure that the transmission teeth are in the same horizontal plane as the gear, and the arrangement of a plurality of rolling balls can assist the placement plate in rotating in the inner cavity of the circular groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a cross-sectional view of the box body of the utility model;

[0019] Figure 3 It is a structural schematic diagram of the rotating plate and the placing plate of the utility model;

[0020] Figure 4 It is a schematic diagram of the structure of the gear and transmission teeth of the utility model;

[0021] Figure 5 It is a structural schematic diagram of the circular groove and the through groove of the utility model.

[0022] Description of reference numerals:

[0023] In the figure: 1. box body; 2. motor; 3. rotating shaft; 4. rotating plate; 5. fixing column; 6. gear; 7. connecting plate; 8. transmission gear; 9. pin shaft; 10. placement plate; 11. limiting ring; 12. circular groove; 13. through groove; 14. circular slide groove; 15. rolling ball. DETAILED DESCRIPTION

[0024] In the following description, a large number of specific details are given to provide a more thorough understanding of the utility model. However, it is obvious to those skilled in the art that the utility model can be implemented without one or more of these details. In other examples, in order to avoid confusion with the utility model, some technical features known in the art are not described.

[0025] Unless otherwise defined, the directions of up, down, left, right, front, back, inside and outside involved in this document are based on the directions of up, down, left, right, front, back, inside and outside in the figures shown in the present utility model, and are explained here together.

[0026] The connection method can be bonding, welding, bolt connection and other existing methods, depending on actual needs.

[0027] like Figures 1 to 5 A constant temperature and humidity test box shown includes a box body 1. Existing equipment for heating or cooling objects and detecting objects, such as a heater and an atomizer, can be installed inside or outside the box body 1. It only needs to be able to heat or cool the objects inside the box body 1 and detect them.

[0028] A motor 2 is fixedly installed on the top surface of the box body 1. The output shaft of the motor 2 passes through the top surface of the box body 1 and is fixedly connected to a rotating shaft 3. The bottom end of the rotating shaft 3 is fixedly connected to a rotating plate 4. One side of the rotating plate 4 is arranged in a semicircular shape. By turning on the motor 2, the motor 2 drives the rotating shaft 3 to rotate, so that the rotating shaft 3 drives the rotating plate 4 and rotates with the axis center of the rotating shaft 3 as the origin.

[0029] A fixed column 5 is longitudinally installed on the bottom surface of the inner cavity of the box body 1 and is located below the rotating plate 4. A gear 6 is fixedly installed on the top surface of the fixed column 5 and is located below the rotating plate 4. The center points of the fixed column 5 and the gear 6 are at the same longitudinal position as the center point of the rotating shaft 3. A connecting plate 7 is sleeved on the circumferential side of the fixed column 5. The connecting plate 7 is set in an L shape. The top surface of the connecting plate 7 is rotatably connected with a transmission tooth 8 meshing with the gear 6. The gear 6 and the transmission tooth 8 are set in parallel. The top surface of the transmission tooth 8 is fixedly connected with a pin shaft 9. The transmission tooth 8 and the pin shaft 9 are both set directly below the rotating plate 4. The top end of the pin shaft 9 penetrates to the top surface of the rotating plate 4 and is rotatably connected with a placement plate 10 for placing the object to be detected. The height of the top surface of the placement plate 10 is higher than the height of the top surface of the rotating plate 4. The object to be detected can be placed on the surface of the placement plate 10. Since the placement plate 10 is set on the rotating plate 4, so that when the rotating shaft 3 drives the rotating plate 4 to rotate, the rotating plate 4 will drive the pin shaft 9 and the placement plate 10 to rotate synchronously, that is, the pin shaft 9 drives the transmission gear 8 to rotate synchronously, and the transmission gear 8 is meshed with the gear 6, and the gear 6 is fixedly installed with the fixed column 5, so that when the transmission gear 8 rotates with the axis of the rotating shaft 3 as the origin, the transmission gear 8 will rotate along the circumference of the gear 6, that is, the transmission gear 8 drives the placement plate 10 to rotate through the pin shaft 9, so that the object placed on the top surface of the placement plate 10 can not only rotate with the rotating shaft 3 as the axis, but also rotate through the placement plate 10, that is, different surfaces of the object can be moved to one side of the heater for heating, to avoid the situation where the temperature of the side of the object close to the heater is too high and the temperature of the other side is too low, which causes a large error in the detection result, thereby improving the quality of object detection.

[0030] A circular groove 12 is provided on the top surface of the rotating plate 4, and the diameter of the circular groove 12 is the same as the diameter of the placement plate 10. A through groove 13 for the pin shaft 9 to pass through is penetrated by the inner cavity bottom surface of the circular groove 12. A circular slide groove 14 is provided in a circular array on the inner cavity bottom surface of the circular groove 12 and on the outer side of the through groove 13. A plurality of rolling balls 15 are provided in the inner cavity of the circular slide groove 14. The bottom surface of the placement plate 10 is against the outer side of the plurality of rolling balls 15. When the transmission gear 8 drives the placement plate 10 to rotate through the pin shaft 9, the placement plate 10 will rotate on the outer side of the plurality of rolling balls 15, so that the plurality of rolling balls 15 can assist the rotation of the placement plate 10.

[0031] Limiting rings 11 are symmetrically installed on the circumferential side of the fixed column 5, and the connecting plate 7 is arranged between the two limiting rings 11. Due to the sliding sleeve between the connecting plate 7 and the fixed column 5, the position of the connecting plate 7 can be limited by the two limiting rings 11, ensuring that the connecting plate 7 can support the transmission tooth 8, so that the transmission tooth 8 is always in a parallel state with the gear 6.

[0032] Working principle:

[0033] In the constant temperature and humidity test chamber, the object to be tested is placed on the top surface of the placement plate 10, and the object inside the box body 1 is heated and tested by the existing heater. At this time, the motor 2 is turned on to drive the rotating plate 4 to rotate through the rotating shaft 3, so that the rotating plate 4 drives the placement plate 10 to rotate, so that the object to be tested can rotate around the rotating shaft 3. When the rotating plate 4 and the placement plate 10 rotate, the placement plate 10 will drive the transmission gear 8 to rotate synchronously around the rotating shaft 3 through the pin shaft 9, so that the transmission gear 8 can rotate along the circumference of the gear 6. Since the gear 6 is fixedly connected to the fixed column 5, the transmission gear 8 can rotate around the gear 6, and the rotating transmission gear 8 can drive the placement plate 10 to rotate through the pin shaft 9, and then drive the object to be tested to rotate, so that the object to be tested can not only rotate around the rotating shaft 3, but also rotate by itself, so that different surfaces of the object to be tested can be heated by the heater, avoiding the situation where the temperature of the side of the object to be tested close to the heater is too high and the temperature of the other side is too low, which causes a large error in the detection result, thereby improving the quality of object detection.

[0034] It should be noted that, in this article, relational terms such as one and two 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. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0035] 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 constant temperature and humidity test chamber, comprising a chamber (1), characterized in that: A motor (2) is fixedly mounted on the top surface of the housing (1); an output shaft of the motor (2) passes through the top surface of the housing (1) and is fixedly connected to a rotating shaft (3); the bottom end of the rotating shaft (3) is fixedly connected to a rotating plate (4); a fixing column (5) is longitudinally mounted on the bottom surface of the inner cavity of the housing (1) and is located below the rotating plate (4); a gear (6) is fixedly mounted on the top surface of the fixing column (5) and is located below the rotating plate (4); a connecting plate (7) is sleeved on the circumferential side of the fixing column (5); a transmission tooth (8) meshing with the gear (6) is rotatably connected to the top surface of the connecting plate (7); a pin shaft (9) is fixedly connected to the top surface of the transmission tooth (8); the transmission tooth (8) and the pin shaft (9) are both arranged directly below the rotating plate (4); the top end of the pin shaft (9) passes through the top surface of the rotating plate (4) and is rotatably connected to a placement plate (10) for placing the detected object.

2. A constant temperature and humidity test chamber according to claim 1, characterized in that: The center points of the fixed column (5) and the gear (6) are at the same longitudinal position as the center point of the rotating shaft (3), and the gear (6) and the transmission tooth (8) are arranged in parallel.

3. A constant temperature and humidity test chamber according to claim 1, characterized in that: One side surface of the rotating plate (4) is arranged in a semicircular shape, and the height of the top surface of the placement plate (10) is higher than the height of the top surface of the rotating plate (4).

4. A constant temperature and humidity test chamber according to claim 1, characterized in that: Limiting rings (11) are symmetrically mounted on the circumference of the fixing column (5), and the connecting plate (7) is arranged between the two limiting rings (11).

5. The constant temperature and humidity test chamber according to claim 1, characterized in that: A circular groove (12) is provided on the top surface of the rotating plate (4), and the diameter of the circular groove (12) is the same as the diameter of the placement plate (10).

6. A constant temperature and humidity test box according to claim 5, characterized in that: A through groove (13) for the pin shaft (9) to pass through is formed through the inner cavity bottom surface of the circular groove (12), and circular sliding grooves (14) are formed in a circular array on the inner cavity bottom surface of the circular groove (12) and outside the through groove (13).

7. A constant temperature and humidity test chamber according to claim 6, characterized in that: The inner cavity of the circular chute (14) is provided with a plurality of rolling balls (15), and the bottom surface of the placement plate (10) abuts against the outer sides of the plurality of rolling balls (15).

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