A self-testing device for ultraviolet lamps in a drawer-type disinfection cabinet

Abstract

This utility model relates to the field of ultraviolet disinfection equipment technology, and in particular to a self-testing device for an ultraviolet lamp in a drawer-type disinfection cabinet. The device includes a disinfection cabinet with a drawer slidably connected inside. An ultraviolet lamp is installed on the top of the cabinet, and a motor is installed inside. Lead screws are rotatably connected to both ends of the top of the cabinet. A pulley assembly is provided at the rear end of both lead screws. The output shaft of the motor is connected to the rear end of the lead screws. A moving block is threadedly connected to the lead screw. A contact assembly is provided between the two moving blocks, and a detector is installed on the contact assembly. The contact assembly is used to push the detector to contact the top surface of the cabinet. The moving blocks are driven to translate by the motor and lead screws, and the detector rotates through the cooperation of a rotating rod and the top block. During detection, the detector is located at the bottom of the ultraviolet lamp; when not detecting, it returns to the top of the cabinet, thus achieving the purpose of monitoring the working status of the ultraviolet lamp.

Description

Technical Field

[0001] This utility model relates to the field of ultraviolet disinfection equipment technology, and in particular to a self-testing device for an ultraviolet lamp used in a drawer-type disinfection cabinet. Background Technology

[0002] With increasing health awareness and growing public health needs, disinfection cabinets, as efficient and convenient disinfection devices, have been widely used in homes, catering, and medical fields. Their core principle is to use ultraviolet light of a specific wavelength to irradiate the surface of objects, destroying the DNA or RNA structure of microorganisms, thereby achieving sterilization. Compared to traditional high-temperature steam disinfection, ultraviolet disinfection has advantages such as no heating required, wide applicability to various materials, and low energy consumption, making it particularly suitable for disinfecting heat-sensitive plastic and rubber tableware or medical instruments.

[0003] Currently, drawer-type disinfection cabinets have become the mainstream product in the market due to their ease of operation. These disinfection cabinets typically feature a pull-out drawer design, allowing users to easily place washed tableware, kitchen utensils, or medical equipment. The device automatically starts the ultraviolet irradiation program after the drawer is closed. The ultraviolet lamps are usually installed on the top or side walls of the drawer, achieving comprehensive disinfection through reflection and even irradiation within the enclosed space.

[0004] However, in existing technologies, the sterilization efficacy of ultraviolet lamps gradually decreases with prolonged use, environmental factors, or power fluctuations, and may even become completely ineffective due to lamp aging or damage. Users cannot directly observe changes in ultraviolet intensity; they can only indirectly judge based on equipment operating time or appearance, leading to actual disinfection results that may be far lower than expected. This information asymmetry not only easily leads to misunderstandings about disinfection effectiveness but can also pose hygiene and safety hazards, especially in scenarios with extremely high requirements for disinfection reliability, such as catering and medical settings, where the consequences are particularly serious. Utility Model Content

[0005] To overcome the drawbacks of diminishing light efficiency and unknown status, this invention provides a self-testing device for ultraviolet lamps used in drawer-type disinfection cabinets, aiming to solve the aforementioned shortcomings.

[0006] A self-testing device for an ultraviolet lamp in a drawer-type disinfection cabinet includes a disinfection cabinet, a drawer slidably connected inside the disinfection cabinet, an ultraviolet lamp installed on the top of the disinfection cabinet, a motor installed inside the disinfection cabinet, lead screws rotatably connected to both ends of the top of the disinfection cabinet, a pulley assembly provided at the rear ends of the two lead screws, the output shaft of the motor connected to the rear ends of the lead screws, a moving block threadedly connected to the lead screws, a fitting assembly provided between the two moving blocks, a detector installed on the fitting assembly, and the fitting assembly used to push the detector to fit against the top surface of the disinfection cabinet.

[0007] In one embodiment, the fitting assembly includes a rotating rod rotatably connected to one side adjacent to the movable block. The detector is connected to the rotating rod at both ends. Two top blocks are connected inside the disinfection cabinet. The end of the rotating rod near the movable block is pressed against the top block. A torsion spring is fitted at the end of the rotating rod rotatably connected to the movable block. One end of the torsion spring is connected to the rotating rod, and the other end is connected to the movable block.

[0008] In one embodiment, a mounting plate is rotatably connected to the top of the disinfection cabinet, the ultraviolet lamp is attached to the bottom surface of the mounting plate, a latch is slidably connected to the end of the mounting plate away from the pivot, the end of the latch is slidably connected to the disinfection cabinet, the mounting plate is provided with a guide rod to assist the sliding of the latch, a spring is sleeved on the guide rod, one end of the spring is connected to the latch, the other end is connected to the mounting plate, and a handle is connected to the bottom of the latch, the handle is slidably connected to the mounting plate.

[0009] In one embodiment, a light is installed on the top of the disinfection cabinet.

[0010] In one embodiment, a sealing strip is connected to the top front side of the disinfection cabinet, and the sealing strip is pressed together with the drawer.

[0011] In one embodiment, a display is installed at the front end of the disinfection cabinet, and the display is wiredly connected to the motor and the detector.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. The moving block is driven to translate by a motor and a lead screw. The detector rotates by the cooperation of the rotating rod and the top block. When detecting, it is located at the bottom of the ultraviolet lamp. When not detecting, it is reset to the top of the disinfection cabinet, thus achieving the purpose of monitoring the working status of the ultraviolet lamp.

[0013] 2. The mounting plate is rotatably connected to the top of the cabinet. The latch cooperates with the cabinet's limiting groove, and the spring provides locking force, allowing the mounting plate to switch between vertical and horizontal states. This facilitates the maintenance or replacement of the ultraviolet lamp, thereby achieving the purpose of quickly handling the ultraviolet lamp and ensuring the continuous effectiveness of the disinfection function. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is a partial structural cross-sectional view of the present invention.

[0016] Figure 3 This is a schematic diagram showing the connection relationship between the latch, spring, and mounting plate of this utility model.

[0017] Figure 4 This is a schematic diagram showing the connection relationship between the rotating rod, the top block, and the torsion spring of this utility model.

[0018] The components in the diagram are labeled as follows: 1-Disinfection cabinet, 2-Drawer, 3-Motor, 4-Pulley assembly, 5-Screw screw, 6-Moving block, 7-Rotating rod, 8-Detector, 9-Top block, 10-Torsion spring, 11-Mounting plate, 12-Lock, 13-Handle, 14-Spring, 15-UV lamp, 16-Lighting lamp, 17-Sealing strip, 18-Display. Detailed Implementation

[0019] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings.

[0020] Example: A self-testing device for an ultraviolet lamp used in a drawer-type disinfection cabinet, such as... Figures 1-4 As shown, the system includes a disinfection cabinet 1, a drawer 2, a motor 3, a pulley assembly 4, lead screws 5, a moving block 6, a detector 8, an ultraviolet lamp 15, and a bonding assembly. The drawer 2 is slidably connected inside the disinfection cabinet 1. An ultraviolet lamp 15 is installed on the top of the disinfection cabinet 1. The motor 3 is installed inside the disinfection cabinet 1. Lead screws 5 are rotatably connected to both ends of the top of the disinfection cabinet 1. The pulley assembly 4 is provided at the rear ends of the two lead screws 5. The output shaft of the motor 3 is connected to the rear ends of the lead screws 5. The moving block 6 is threadedly connected to the lead screws 5. A bonding assembly is provided between the two moving blocks 6. The detector 8 is installed in the bonding assembly. The bonding assembly is used to push the detector 8 to fit against the top surface of the disinfection cabinet 1. The pulley assembly 4 uses a toothed belt drive to avoid slippage, ensure the synchronous rotation accuracy of the lead screws 5 on both sides, and improve the positioning accuracy of the detector 8.

[0021] like Figure 2 and Figure 4 As shown, the fitting assembly includes a rotating rod 7, a top block 9, and a torsion spring 10. The rotating rod 7 is rotatably connected to the adjacent sides of two moving blocks 6. Both ends of the detector 8 are connected to the rotating rod 7. Two top blocks 9 are connected inside the disinfection cabinet 1. The end of the rotating rod 7 near the moving block 6 is pressed against the top block 9. The end of the rotating rod 7 rotatably connected to the moving block 6 is fitted with a torsion spring 10. One end of the torsion spring 10 is connected to the rotating rod 7, and the other end is connected to the moving block 6. The front end of the top block 9 has a bevel that matches the arc surface at the end of the rotating rod 7, so as to achieve a smooth transition when the detector 8 is raised or lowered. The torsion spring 10 provides an automatic reset force so that the detector 8 fits against the top surface of the disinfection cabinet 1 when it is not in the detection state, so as to avoid interfering with the pushing and pulling of the drawer 2.

[0022] like Figure 2 and Figure 3As shown, it also includes a mounting plate 11, a latch 12, a handle 13, and a spring 14. The mounting plate 11 is rotatably connected to the top of the disinfection cabinet 1. An ultraviolet lamp 15 is attached to the bottom surface of the mounting plate 11. A latch 12 is slidably connected to the end of the mounting plate 11 away from the pivot. The end of the latch 12 is slidably connected to the disinfection cabinet 1. The mounting plate 11 is provided with a guide rod to assist the sliding of the latch 12. A spring 14 is sleeved on the guide rod. One end of the spring 14 is connected to the latch 12, and the other end is connected to the mounting plate 11. The bottom of the buckle 12 is connected to a handle 13, which is slidably connected to the mounting plate 11. The end of the buckle 12 away from the mounting plate 11 is inserted into the disinfection cabinet 1. The disinfection cabinet 1 is provided with a limit groove, and the top surface of the end of the buckle 12 away from the mounting plate 11 is provided with a slope. The width of the slope is greater than the width of the limit groove. The slope design at the end of the buckle 12 facilitates automatic centering when inserted into the limit groove. The width difference can prevent the buckle 12 from accidentally coming out. The spring 14 provides locking force to ensure the stability of the mounting plate 11 after it is fixed.

[0023] like Figure 2 As shown, it also includes a lighting lamp 16. The top of the disinfection cabinet 1 is equipped with a lighting lamp 16, which can be automatically turned on when the drawer 2 is pulled out to provide auxiliary lighting, making it convenient for users to take out and put in items.

[0024] like Figure 2 As shown, it also includes a sealing strip 17. The top front side of the disinfection cabinet 1 is connected to the sealing strip 17. The sealing strip 17 is squeezed and fitted with the drawer 2. The sealing strip 17 is made of flexible material. When the drawer 2 is closed, the sealing strip 17 forms a sealed space by compression to prevent ultraviolet leakage and improve disinfection efficiency.

[0025] like Figure 1 As shown, it also includes a display 18. The display 18 is installed at the front end of the disinfection cabinet 1. The display 18 is wired to the motor 3 and the detector 8. The wired connection avoids signal interference, ensures that the detection data is displayed in real time and accurately, and improves the reliability of user operation.

[0026] When the disinfection cabinet 1 is in normal use, the user can pull out the drawer 2 to take out or place items inside, and then push the drawer 2 back to the closed state. At this time, the ultraviolet lamp 15 will automatically start and disinfect the items in the drawer 2 by irradiating from the top. It will automatically turn off after the preset time is reached. In order to ensure that the ultraviolet lamp 15 is continuously effective, the system is set with a dual detection trigger mechanism. When the user pulls out the drawer 2 to take out or place items, the device will automatically start the detection program. The detection function can also be manually turned on through the display 18. First, motor 3 drives lead screw 5 to rotate, which in turn drives lead screws 5 on both sides to rotate synchronously via pulley set 4, driving moving block 6 to move forward. During the movement of moving block 6, rotating rod 7, which was originally in contact with top block 9, gradually disengages, and torsion spring 10, which has been twisted, generates a rebound force. At the same time, detector 8, due to its own weight, drives rotating rod 7 to rotate downward around moving block 6. When moving block 6 reaches the corresponding position at the bottom of ultraviolet lamp 15, detector 8 is exactly below ultraviolet lamp 15, and performs real-time detection of ultraviolet intensity. If the detection value meets the standard, ultraviolet lamp 15 is deemed to be functioning normally; if it is below the threshold, the disinfection effect may be insufficient. The detection result is simultaneously displayed on display 18, which users can view directly after taking or placing items. After the detection is completed, motor 3 drives lead screw 5 in the reverse direction, and moving block 6 drives rotating rod 7 to move backward. When the arc surface at the end of rotating rod 7 contacts the inclined surface at the front end of top block 9, top block 9 squeezes rotating rod 7 to make it rotate upward, and torsion spring 10 is twisted again. Finally, detector 8 returns to the top surface inside disinfection cabinet 1 with rotating rod 7, keeping the push-pull path of drawer 2 unobstructed.

[0027] When the test results show that the ultraviolet lamp 15 is malfunctioning, it needs to be repaired or replaced. After the user fully pulls out the drawer 2, he pushes the handle 13 forward with his finger, causing the latch 12 to slide along the guide rod of the mounting plate 11. The end of the latch 12 disengages from the limiting groove at the top of the disinfection cabinet 1. At this time, the compressed spring 14 generates a rebound force to push the latch 12 back to its original position. However, due to structural limitations, the latch 12 cannot completely disengage from the mounting plate 11. After the mounting plate 11 loses its limiting position, it rotates downwards around the axis due to its own weight until it reaches a vertical position, so that the ultraviolet lamp 15 is upright. With the mounting plate facing outwards for easy user operation, after repairing or replacing the UV lamp 15, the user pushes the mounting plate 11 along with the UV lamp 15 into the disinfection cabinet 1. When the beveled end of the latch 12 contacts the inner wall of the disinfection cabinet 1, it is squeezed and slides inwards towards the mounting plate 11, and the spring 14 is compressed simultaneously. When the mounting plate 11 is rotated to a horizontal position, the latch 12 aligns with the limiting groove, and the spring 14 pushes the latch 12 into the groove, thus fixing the mounting plate 11 and ensuring that the UV lamp 15 is stably attached to the bottom surface of the mounting plate 11.

[0028] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. All equivalent substitutions made within the principles of this utility model should be included within the protection scope of this utility model. Contents not described in detail in this utility model are existing technologies known to those skilled in the art.

Claims

1. A self-testing device for an ultraviolet lamp used in a drawer-type disinfection cabinet, characterized in that: The device includes a disinfection cabinet (1), a drawer (2) that slides inside the disinfection cabinet (1), an ultraviolet lamp (15) installed on the top inside the disinfection cabinet (1), a motor (3) installed inside the disinfection cabinet (1), and lead screws (5) that are rotatably connected to the left and right ends of the top inside the disinfection cabinet (1). A pulley group (4) is provided at the rear ends of the two lead screws (5). The output shaft of the motor (3) is connected to the rear end of the lead screws (5). A moving block (6) is threadedly connected to the lead screws (5). A bonding component is provided between the two moving blocks (6). A detector (8) is installed on the bonding component. The bonding component is used to push the detector (8) to bond with the top surface inside the disinfection cabinet (1).

2. The ultraviolet lamp self-testing device for a drawer-type disinfection cabinet as described in claim 1, characterized in that: The fitting assembly includes a rotating rod (7), which is rotatably connected to one side adjacent to the moving block (6). The detector (8) is connected to the rotating rod (7) at both ends. Two top blocks (9) are connected inside the disinfection cabinet (1). The end of the rotating rod (7) near the moving block (6) is pressed against the top block (9). A torsion spring (10) is sleeved on the end of the rotating rod (7) that is rotatably connected to the moving block (6). One end of the torsion spring (10) is connected to the rotating rod (7), and the other end is connected to the moving block (6).

3. The ultraviolet lamp self-testing device for a drawer-type disinfection cabinet as described in claim 2, characterized in that: The disinfection cabinet (1) is rotatably connected to the top of the cabinet. The ultraviolet lamp (15) is attached to the bottom surface of the mounting plate (11). The end of the mounting plate (11) away from the pivot is slidably connected to a buckle (12). The end of the buckle (12) is slidably connected to the disinfection cabinet (1). The mounting plate (11) is provided with a guide rod to assist the buckle (12) in sliding. A spring (14) is sleeved on the guide rod. One end of the spring (14) is connected to the buckle (12), and the other end is connected to the mounting plate (11). A handle (13) is connected to the bottom of the buckle (12). The handle (13) is slidably connected to the mounting plate (11).

4. The ultraviolet lamp self-testing device for a drawer-type disinfection cabinet as described in claim 3, characterized in that: The disinfection cabinet (1) is equipped with a lighting lamp (16) installed on the top inside.

5. The ultraviolet lamp self-testing device for a drawer-type disinfection cabinet as described in claim 4, characterized in that: The disinfection cabinet (1) has a sealing strip (17) connected to the top front side, and the sealing strip (17) is pressed together with the drawer (2).

6. The ultraviolet lamp self-testing device for a drawer-type disinfection cabinet as described in claim 5, characterized in that: The disinfection cabinet (1) is equipped with a display (18) at the front end, and the display (18) is wiredly connected to the motor (3) and the detector (8).

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