Constant temperature and humidity chamber monitoring device

Abstract

The utility model discloses a monitoring device for a constant temperature and humidity chamber, which relates to the technical field of constant temperature and humidity chambers and comprises a chamber body, a water adding tank fixedly mounted on the rear side of the chamber body, a water level tank arranged on the rear side of the water adding tank, a reserve water tank fixedly mounted on the upper side of the water adding tank, and a connecting pipe arranged between the lower part of the reserve water tank and the water adding tank. A communicating container is connected between the lower end of the connecting pipe and the water adding tank, an opening is formed in the communicating container, and a corresponding valve plate is arranged at the opening. Through the linkage design of the water level tank, the floating ball, the contact switch and the electromagnetic valve, the water level change of the water adding tank is monitored in real time, a water source is automatically supplemented when the water level is too low, normal operation of the constant-temperature and constant-humidity tank is ensured, the monitoring and operation procedures are simplified through the communicating vessel principle, time redundancy of the water storage tank is avoided, and faults are prevented. The telescopic rod and the floating ball are combined with the limiting plate to limit water level changes, it is ensured that the floating ball floats in a reasonable range, and misoperation or faults are avoided.

Description

Technical Field

[0001] This utility model relates to the field of constant temperature and humidity chamber technology, and in particular to a monitoring device for a constant temperature and humidity chamber. Background Technology

[0002] A constant temperature and humidity chamber is a device used to simulate and test different temperature and humidity environments. It is widely used in product development, quality control and environmental testing in industries such as electronics, automobiles, materials, food and pharmaceuticals. Constant temperature and humidity chambers are often used to perform accelerated oxidation tests on the shelf life of products. They test the changes in sensory quality and microbiological indicators of products under conditions of 37°C and 75% humidity, thereby inferring their shelf life at room temperature.

[0003] The humidity control function of a constant temperature and humidity chamber relies on the water supply in the tank. If the tank is low on water, the humidity control system cannot function properly, leading to unstable humidity and potentially affecting the temperature and humidity environment inside the chamber, thereby damaging the equipment or affecting test results. Currently, many constant temperature and humidity chambers lack automatic water level monitoring devices, making it impossible for external technicians to monitor the water level in real time. A water shortage may not be immediately detected, affecting the normal operation of the equipment and potentially causing damage. Therefore, this invention proposes a monitoring device for constant temperature and humidity chambers to address the problems mentioned in the background section. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a monitoring device for a constant temperature and humidity chamber.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A constant temperature and humidity chamber monitoring device includes a chamber body, a water tank fixedly installed on the rear side of the chamber body, a water level tank disposed on the rear side of the water tank, a storage water tank fixedly installed on the upper side of the water tank, a connecting pipe disposed between the lower part of the storage water tank and the water tank, a connecting container being connected between the lower end of the connecting pipe and the water tank, an opening being disposed inside the connecting container, a corresponding valve plate being disposed at the opening, the valve plate being rotatably connected to the connecting container, a touch rod being fixedly connected to the outer side of the valve plate, a telescopic rod being fixedly connected to the outer end of the touch rod, and a float being fixed to the other end of the telescopic rod.

[0007] Preferably, a steam generator is provided on one side of the water tank, a water pump is provided on the upper side of the steam generator, and a water supply pipe is connected between the water pump and the lower part of the water tank.

[0008] Preferably, a communication port is provided between the lower part of the water level tank and the water filling tank, and a water level scale is provided on the outer side of the water level tank.

[0009] Preferably, two limiting plates are fixed inside the water level tank on one side, one end of the telescopic rod passes through the gap between the two limiting plates, and the float is located on one side of the two limiting plates.

[0010] Preferably, a solenoid valve is provided at one end of the connecting pipe, and a contact switch with a corresponding touch rod is installed inside the water level tank. The contact switch is electrically connected to the solenoid valve and an alarm is electrically connected to the contact switch.

[0011] Preferably, the cavity of the box is provided with a plurality of trays, which are evenly arranged in the cavity.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model, through the linkage design of water level tank, float ball, contact switch and solenoid valve, can monitor the water level change of water tank in real time and automatically replenish water when the water level is too low, ensuring the normal operation of constant temperature and humidity chamber. The reserve water tank provides backup water source to ensure timely replenishment of water tank. Through the principle of communicating vessels, the water level change of water level tank directly reflects the status of water tank, simplifying the monitoring and operation process.

[0014] 2. When the water level drops to the set value, the contact switch activates the alarm to remind technicians to add water, thus preventing the equipment from stopping due to water shortage. This provides time redundancy and prevents equipment failure. The design of the telescopic rod and float ball, combined with the limit plate, restricts water level changes and ensures that the float ball floats within a reasonable range, avoiding system misoperation or malfunction. Attached Figure Description

[0015] Figure 1 This utility model provides a structural schematic diagram of a monitoring device for a constant temperature and humidity chamber. Figure 1 ;

[0016] Figure 2 This utility model provides a structural schematic diagram of a monitoring device for a constant temperature and humidity chamber. Figure 2 ;

[0017] Figure 3 This is a schematic diagram of the back structure of a constant temperature and humidity chamber monitoring device proposed in this utility model;

[0018] Figure 4 This is a schematic diagram of the connection structure of the water tank in a constant temperature and humidity chamber monitoring device proposed in this utility model.

[0019] In the diagram: 1. Box body; 2. Tray; 3. Water storage tank; 4. Steam generator; 5. Water pump; 6. Water filling tank; 7. Water level tank; 8. Connecting port; 9. Float; 10. Limiting plate; 11. Connecting container; 12. Connecting pipe; 13. Water filling pipe; 14. Valve plate; 15. Telescopic rod; 16. Touch rod; 17. Contact switch. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Reference Figure 1-4 A constant temperature and humidity chamber monitoring device includes a chamber body 1, a water tank 6 fixedly installed on the rear side of the chamber body 1, a water level tank 7 set on the rear side of the water tank 6, a reserve water tank 3 fixedly installed on the upper side of the water tank 6, a connecting pipe 12 between the lower part of the reserve water tank 3 and the water tank 6, a communication port 8 between the water level tank 7 and the lower part of the water tank 6, and a water level scale on the outer side of the water level tank 7. The communication port 8 between the water level tank 7 and the water tank 6 forms a communicating vessel. According to the principle of communicating vessels, the water level in the water tank 6 can be observed by observing the water level scale on the water level tank 7. Users only need to observe the scale line on the water level tank 7 to understand the changes in the water level of the water tank 6 and avoid the water level of the water tank 6 being too low or too high. The reserve water tank 3 is fixedly installed above the water tank 6 and connected to the water tank 6 through the connecting pipe 12. The reserve water tank 3 serves as a backup water source to deal with the situation where the water level of the water tank 6 drops.

[0022] A steam generator 4 is installed on one side of the water tank 6, and a water pump 5 is installed on the upper side of the steam generator 4. A water supply pipe 13 is connected between the water pump 5 and the lower part of the water level tank 7. Several trays 2 are installed in the cavity of the chamber 1. The trays 2 are evenly arranged in the cavity. The item to be tested is placed in the cavity of the chamber 1. Water in the water tank 6 is filled into the steam generator 4. The steam generator 4 generates steam and enters the chamber 1 to affect the high humidity environment. The steam generator 4 is connected to the water tank 6. The steam generator 4 converts the water in the water tank 6 into steam, thereby regulating the humidity inside the constant temperature and humidity chamber. The water pump 5 is located above the steam generator 4 and is responsible for pumping the water in the lower part of the water level tank 7 to the steam generator 4. Through the water supply pipe 13, the water pump 5 ensures that the steam generator 4 always has a sufficient water source to generate steam, thereby ensuring the stability of humidity.

[0023] A connecting container 11 is connected between the lower end of the connecting pipe 12 and the water tank 6. The connecting container 11 has an opening, and a corresponding valve plate 14 is installed at the opening. The valve plate 14 is rotatably connected to the connecting container 11. A contact rod 16 is fixedly connected to the outside of the valve plate 14, and a telescopic rod 15 is fixedly connected to the outer end of the contact rod 16. A float ball 9 is fixed to the other end of the telescopic rod 15. Two limiting plates 10 are fixed to one side of the water level tank 7. One end of the telescopic rod 15 passes through the gap between the two limiting plates 10. The float ball 9 is located on one side of the two limiting plates 10. A solenoid valve is installed at one end of the connecting pipe 12. A contact switch 17 corresponding to the contact rod 16 is installed inside the water level tank 7. At the same time, the connecting valve plate 14 also rotates at the opening, causing the water inlet of the water tank 6 to open. When the telescopic rod 15 is open and continues to rotate, due to the restriction of the limit plates 10 on both sides, the float 9 connected to the telescopic rod 15 always floats on one side of the limit plate 10, while the telescopic rod 15 connected to the contact rod 16 rotates and stretches. Inside the water level tank 7, limit plates 10 are fixed on both sides. The function of these limit plates 10 is to limit the range of motion of the float 9 and ensure that the float 9 is always in a reasonable floating position. The limit plates 10 make it difficult for the float 9 to be misaligned due to water flow or other factors, ensuring the monitoring accuracy of water level changes. The telescopic rod 15 passes through the gap of the limit plates 10 and is connected to the float 9. The float 9 is pushed up and down by the water level change. The rotation of the telescopic rod 15 will also drive the rotation of the valve plate 14 to control the replenishment of water level.

[0024] Contact switch 17 is electrically connected to the solenoid valve and is also electrically connected to an alarm. The float 9 on the water surface senses the water level change inside the water level tank 7. When the water level drops to a certain level, the contact rod 16 of the telescopic rod 15 contacts the contact switch 17 inside the water level tank 7, triggering the solenoid valve. The solenoid valve opens, and the water in the storage tank 3 is connected to the water filling tank 6 through the connecting pipe 12 until the water in the storage tank 3 is completely filled into the water filling tank 6 and the water level tank 7. At the same time, contact switch 17 activates the alarm to remind technicians to add water. The storage tank 3 provides time redundancy for technicians to add water to the tank 1, ensuring the normal operation of the tank 1.

[0025] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A monitoring device for a constant temperature and humidity chamber, comprising a cabinet (1), characterized in that, The box (1) rear side is fixedly installed with a water adding tank (6), the water adding tank (6) rear side is provided with a water level tank (7), the water adding tank (6) upper side is fixedly installed with a reserve water tank (3), the reserve water tank (3) lower part and the water adding tank (6) between are provided with a connecting pipe (12), the connecting pipe (12) lower end and the water adding tank (6) between are connected with a communication container (11), the communication container (11) inside is provided with an opening, the opening is provided with a corresponding valve plate (14), the valve plate (14) is rotatably connected in the communication container (11), the valve plate (14) outside is fixedly connected with a touch rod (16), the touch rod (16) outer end is fixedly connected with a telescopic rod (15), the telescopic rod (15) other end is fixedly connected with a float ball (9).

2. The monitoring device for a constant temperature and humidity chamber according to claim 1, wherein The water adding tank (6) one side is provided with a steam generator (4), the steam generator (4) upper side is provided with a water pump (5), the water pump (5) and the water level tank (7) lower part between are connected with a water adding pipe (13).

3. The monitoring device for a constant temperature and humidity chamber according to claim 1, wherein The water level tank (7) and the water adding tank (6) lower part between are provided with a communication port (8), the water level tank (7) one side outside is provided with a water level scale.

4. The monitoring device for a constant temperature and humidity chamber according to claim 1, wherein The water level tank (7) inside one side is fixedly connected with two left and right limiting plates (10), the telescopic rod (15) one end passes through the two limiting plates (10) middle gap, and the float ball (9) is located at one side of the two limiting plates (10).

5. The monitoring device for a constant temperature and humidity chamber according to claim 1, wherein The connecting pipe (12) one end is provided with a solenoid valve, the water level tank (7) inside is provided with a contact switch (17) corresponding to the touch rod (16), the contact switch (17) and the solenoid valve are electrically connected, and the contact switch (17) is electrically connected with a siren.

6. The monitoring device for a constant temperature and humidity chamber according to claim 1, wherein The box (1) cavity is provided with a plurality of trays (2), and the plurality of trays (2) are evenly arranged in the cavity.

Images