Self-cleaning device for constant temperature and humidity chamber
By introducing a self-cleaning device consisting of a water spray pipe and an ultraviolet germicidal lamp into the constant temperature and humidity chamber, combined with a scissor-driven transmission system and a brush, the problem of mold and corrosion in the constant temperature and humidity chamber under high humidity conditions is solved, achieving automated cleaning and disinfection and improving cleaning efficiency and effectiveness.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGZHOU HAODAO FOOD CO LTD
- Filing Date
- 2025-04-07
- Publication Date
- 2026-05-15
AI Technical Summary
Existing temperature and humidity chambers are prone to mold and corrosion in high humidity environments. Manual cleaning is time-consuming, labor-intensive, and incomplete, which affects their service life.
A self-cleaning device including a water spray pipe and an ultraviolet germicidal lamp was designed. It achieves automatic cleaning and disinfection through a scissor-driven transmission system, and combines a brush and a cleaning plate for scrubbing and rinsing. The structure can be unfolded and stored to adapt to different cleaning needs.
It achieves automated cleaning and disinfection processes, improving cleaning efficiency and effectiveness, reducing the complexity and inconsistency of manual operations, and ensuring the thorough removal of stains from the inner walls of the cabinet.
Smart Images

Figure CN224236864U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of constant temperature and humidity chamber technology, and in particular to a self-cleaning 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, automotive, materials, food, and pharmaceuticals. Constant temperature and humidity chambers are frequently used for accelerated oxidation testing of product shelf life, measuring changes in sensory quality and microbiological indicators at 37°C and 75% humidity to infer shelf life at room temperature. However, because these conditions are ideal for microbial growth, the chamber is prone to mold and corrosion of internal components, severely impacting its lifespan. Therefore, manual cleaning is necessary. Due to the numerous cleaning steps and details involved, manual operation is time-consuming, labor-intensive, and inefficient, resulting in incomplete cleaning. Therefore, this invention proposes a self-cleaning device for constant temperature and humidity chambers to address the problems mentioned in the background. Summary of the Invention
[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a self-cleaning device for a constant temperature and humidity chamber.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] A self-cleaning device for a constant temperature and humidity chamber includes a chamber body. Several upper and lower trays are arranged inside the chamber body. A support is provided on the lower side of the chamber body. A scissor frame located inside the chamber body is arranged below the support. The upper side of the scissor frame is rotatably connected to the support. Several water spray pipes are installed on the left and right sides inside the scissor frame. Several ultraviolet germicidal lamps are installed in the middle of the scissor frame. Slides are rotatably connected to the four ends of the lower side of the scissor frame. The slides slide left and right inside the chamber body. A cleaning plate that slides back and forth is provided on the upper side of the support. A connecting handle is fixedly connected to the front side of the cleaning plate. A door is provided on the front side of the chamber body. A door lock corresponding to the door is provided on one side of the chamber body. Several drain outlets are opened on the lower side of the chamber body.
[0006] Preferably, the water spray pipe is provided with sealed bearings at both ends, the sealed bearings are installed in corresponding positions inside the scissor frame, a number of nozzles are installed on the outside of the water spray pipe, and a connection port is provided at the outer end of the water spray pipe.
[0007] Preferably, the box body has several support blocks corresponding to the tray arranged on the left and right sides inside, and the lower left and right sides of the box body are fixed with corresponding support seats.
[0008] Preferably, a spur gear is provided between the two slides on the same side, and the inner side of the slide is provided with a tooth groove corresponding to the spur gear. The two spur gears are rotatably connected to the housing, and a bevel gear is fixedly connected to the upper side of the spur gear.
[0009] Preferably, the lower middle side of the scissor frame is provided with a screw rod rotatably connected to the housing, and a positioning screw block is threadedly connected to the screw rod, the positioning screw block sliding inside and outside the lower side of the housing.
[0010] Preferably, each end of the screw is fixed with a bevel gear one, and the two bevel gears one respectively mesh with two bevel gears two, and a knob is fixed to the outer end of the screw.
[0011] Preferably, the length of the cleaning plate is less than or equal to the internal width of the box, brushes are installed on both the left and right sides of the cleaning plate, and the connecting handle is less than or equal to the internal depth of the box.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0013] 1. This utility model, through the combination of a water spray pipe and an ultraviolet germicidal lamp, can automatically clean and disinfect the inside of the box after use, avoiding the inconsistency and incompleteness caused by manual cleaning, reducing the complexity of manual operation, and improving cleaning efficiency. The scissor frame realizes the expansion and contraction of the structure through a screw, bevel gear and spur gear transmission system, which facilitates the adjustment of the cleaning range and can adjust the position and angle of the cleaning equipment according to the actual situation inside the box, ensuring the accuracy of the cleaning process.
[0014] 2. The design of the cleaning plate and brush in this utility model can scrub the inside of the box. Combined with the rinsing of the water spray pipe, it forms a "rinse first, then scrub" cleaning process to ensure that the stains on the inner wall of the box are thoroughly removed and improve the cleaning effect. The design of the water spray pipe connection port makes it convenient to replenish the water source. After cleaning, the self-cleaning structure can automatically and quickly retract. Attached Figure Description
[0015] Figure 1 This utility model provides a structural schematic diagram of a self-cleaning device for a constant temperature and humidity chamber. Figure 1 ;
[0016] Figure 2 This invention provides a structural schematic diagram of a self-cleaning device for a constant temperature and humidity chamber. Figure 2 ;
[0017] Figure 3 This is a side sectional view of the self-cleaning device for a constant temperature and humidity chamber proposed in this utility model.
[0018] Figure 4 This is a schematic diagram of the front connection structure of the scissor holder in the self-cleaning device of the constant temperature and humidity chamber proposed in this utility model.
[0019] In the diagram: 1. Box body; 2. Box door; 3. Door lock; 4. Tray; 5. Support; 6. Scissors holder; 7. Cleaning board; 8. Connecting handle; 9. Drain outlet; 10. Water spray pipe; 11. Ultraviolet germicidal lamp; 12. Limit seat; 13. Screw; 14. Positioning screw block; 15. Bevel gear one; 16. Spur gear; 17. Bevel gear two; 18. Slide. 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 self-cleaning device for a constant temperature and humidity chamber includes a chamber body 1. Several upper and lower trays 4 are arranged inside the chamber body 1. A support 5 is arranged on the lower side of the chamber body 1. A scissor frame 6 located inside the chamber body 1 is arranged below the support 5. The upper side of the scissor frame 6 is rotatably connected to the support 5. Several water spray pipes 10 are installed on the left and right sides inside the scissor frame 6. Several ultraviolet germicidal lamps 11 are installed in the middle of the scissor frame 6. Several support blocks corresponding to the trays 4 are arranged on the left and right sides inside the chamber body 1. Limiting seats 12 corresponding to the support 5 are fixed on the left and right sides of the lower side of the chamber body 1. After using the constant temperature and humidity chamber, the trays 4 inside the chamber body 1 are removed, and then the scissor frame 6 structure inside the chamber body 1 is unfolded. The upper side of the unfolded scissor frame 6 moves upward inside the chamber body 1. At the same time, the several water spray pipes 10 on both sides and the several ultraviolet germicidal lamps 11 in the middle rise and unfold, spraying clean water through the water spray pipes 10 to clean the inner cavity of the chamber body 1 and sterilizing it through the ultraviolet germicidal lamps 11.
[0022] The water spray pipe 10 is equipped with sealed bearings at both ends, which are installed in corresponding positions inside the scissor frame 6. Several nozzles are installed on the outside of the water spray pipe 10, and a connection port is provided at the outer end of the water spray pipe 10. The cleaning water sprayed from the nozzles enters the water spray pipe 10 through the external water source via the connection port. A cleaning plate 7 that slides back and forth is provided on the upper side of the support 5. A connecting handle 8 is fixedly connected to the front side of the cleaning plate 7. The length of the cleaning plate 7 is less than or equal to the internal width of the box 1. Brushes are installed on both sides of the cleaning plate 7. The connecting handle 8 is less than or equal to the internal depth of the box 1. After cleaning the inside of the box 1, the cleaning plate 7 inside the box 1 is pulled back and forth by the connecting handle 8 to clean the inside of the box 1 back and forth, cleaning layer by layer from top to bottom, rinsing first and then scrubbing.
[0023] The four ends of the scissor frame 6 are rotatably connected to the slides 18. The slides 18 slide left and right inside the box 1. The front of the box 1 is provided with a door 2. The side of the box 1 is provided with a door lock 3 corresponding to the door 2. Several drain outlets 9 are opened on the lower side of the inside of the box 1. The cleaning water for rinsing is discharged through the drain outlets 9.
[0024] A spur gear 16 is provided between two slide blocks 18 on the same side, and the inner side of the slide block 18 is provided with a tooth groove corresponding to the spur gear 16. The two spur gears 16 are rotatably connected to the housing 1. A screw 13 is provided on the lower middle side of the scissor bracket 6 and is rotatably connected to the housing 1. A positioning screw block 14 is threaded onto the screw 13. The positioning screw block 14 slides inside and outside the lower side of the housing 1. A bevel gear 17 is fixedly connected to the upper side of the spur gear 16. Bevel gears 15 are fixed at both ends of the screw 13. The two bevel gears 15 mesh with the two bevel gears 17 respectively. A knob is fixed at one end. Rotating the screw 13 causes the bevel gear 15 connected to both ends of the screw 13 to rotate. The bevel gear 15 drives the spur gear 16 connected to the bevel gear 17 to rotate through the meshing bevel gear 17. The spur gear 16 drives the slides 18 on both sides to move away from or closer to each other, thereby realizing the expansion or contraction of the scissor frame 6. The left and right ends of the scissor frame 6 move closer to the center, the scissor frame 6 expands, the scissor frame 6 expands to the left and right sides, and the scissor frame 6 is compressed and folded. The positioning screw block 14 can fix the height of the adjustable support 5 in time.
[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 self-cleaning device for a constant temperature and humidity chamber, comprising a chamber body (1), characterized in that, The box (1) is provided with several upper and lower trays (4) inside. The box (1) is provided with a support (5) on the lower side inside. The support (5) is provided with a scissor rack (6) located inside the box (1) on the lower side. The upper side of the scissor rack (6) is rotatably connected to the support (5). Several water spray pipes (10) are installed on the left and right sides inside the scissor rack (6). Several ultraviolet germicidal lamps (11) are installed in the middle inside the scissor rack (6). The four ends of the lower side of the scissor rack (6) are rotatably connected with slides (18). The slides (18) slide left and right inside the box (1). The support (5) is provided with a cleaning plate (7) that slides back and forth on the upper side. The front side of the cleaning plate (7) is fixedly connected with a connecting handle (8). The front side of the box (1) is provided with a box door (2). The box (1) is provided with a door lock (3) corresponding to the box door (2) on one side. Several drain outlets (9) are opened on the lower side inside the box (1).
2. The self-cleaning device for a constant temperature and humidity chamber according to claim 1, characterized in that, The water spray pipe (10) is provided with sealed bearings at both ends. The sealed bearings are installed in the corresponding positions inside the scissor frame (6). Several nozzles are installed on the outside of the water spray pipe (10), and a connection port is provided at the outer end of the water spray pipe (10).
3. The self-cleaning device for a constant temperature and humidity chamber according to claim 1, characterized in that, The box (1) has several support blocks corresponding to the tray (4) inside on the left and right sides, and the lower side of the box (1) is fixed with a limiting seat (12) corresponding to the support (5).
4. The self-cleaning device for a constant temperature and humidity chamber according to claim 1, characterized in that, A spur gear (16) is provided between the two slides (18) on the same side, and a tooth groove corresponding to the spur gear (16) is provided on the inner side of the slide (18), and the two spur gears (16) are rotatably connected to the housing (1), and a bevel gear (17) is fixedly connected to the upper side of the spur gear (16).
5. The self-cleaning device for a constant temperature and humidity chamber according to claim 1, characterized in that, The lower middle side of the scissor frame (6) is provided with a screw (13) rotatably connected to the box (1). A positioning screw block (14) is threadedly connected to the screw (13). The positioning screw block (14) slides inside and outside the lower side of the box (1).
6. The self-cleaning device for a constant temperature and humidity chamber according to claim 5, characterized in that, Both ends of the screw (13) are fixed with bevel gears (15), and the two bevel gears (15) mesh with the two bevel gears (17) respectively. A knob is fixed at the outer end of the screw (13).
7. The self-cleaning device for a constant temperature and humidity chamber according to claim 1, characterized in that, The length of the cleaning plate (7) is less than or equal to the internal width of the box (1), and brushes are installed on both the left and right sides of the cleaning plate (7). The connecting handle (8) is less than or equal to the internal depth of the box (1).