A hydrogen peroxide low temperature plasma sterilizer supply cassette device
By introducing anti-inversion grooves and positioning grooves into the hydrogen peroxide low-temperature plasma sterilizer, and combining them with electromagnetic drive positioning pins and photoelectric sensors, automatic positioning and anti-inversion are achieved, solving the problems of low degree of automatic control and difficult maintenance, and improving the convenience and accuracy of equipment maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- MUDANJIANG PLASMA PHYSICAL APPL TECH CO LTD
- Filing Date
- 2025-08-15
- Publication Date
- 2026-08-04
AI Technical Summary
Existing hydrogen peroxide low-temperature plasma sterilizers have low levels of automation, their mechanical structures are prone to wear, leading to decreased positioning accuracy, and they are difficult and costly to maintain.
The capsule box features an anti-inversion groove on the front and a positioning groove on the back. Combined with an electromagnetically driven positioning pin and a photoelectric sensor, it achieves automatic positioning and anti-inversion, and is precisely controlled by a lead screw motor.
It improves the level of automation, simplifies the initial commissioning and maintenance process, prevents sterilization failure, and reduces maintenance costs.
Smart Images
Figure CN224585097U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical disinfection equipment technology, specifically to a capsule box supply device for a hydrogen peroxide low-temperature plasma sterilizer. Background Technology
[0002] Low-temperature hydrogen peroxide plasma sterilization has the advantages of low temperature, non-toxicity, high efficiency, and thoroughness, and has been widely used in various medical institutions and other places. Utility model patent CN220787288U provides a technical solution for a "capsule delivery device for a low-temperature hydrogen peroxide plasma sterilizer," which was applied for by the applicant in 2003. It uses more efficient capsules to supply hydrogen peroxide solution to the sterilizer. To reduce production costs, its actuators largely employ mechanical structures; for example, the positioning and clamping functions of the capsules are primarily achieved through mechanical structures. This design effectively controls costs, but the degree of automation is low, requiring manual activation of the sterilization program after inserting the capsules. Furthermore, prolonged use can lead to misalignment due to mechanical wear, resulting in decreased operational accuracy and positioning inaccuracies. Since these problems are caused by mechanical wear, repair and recalibration are very difficult. Once equipment malfunctions, repairs often involve replacing the entire unit, resulting in high repair costs. Currently, with the continuous development and advancement of electronic component technology, their procurement costs are constantly decreasing, providing broader space for the intelligent development and precise control of mechanical equipment. Summary of the Invention
[0003] The technical problem to be solved by this utility model is to provide a hydrogen peroxide low-temperature plasma sterilizer supply device with a higher degree of automatic control and easier maintenance.
[0004] The technical solution of this utility model is: a capsule feeding device for a hydrogen peroxide low-temperature plasma sterilizer, including a capsule box and a feeding device. The feeding device includes a box-carrying compartment, a guide rail, a lead screw, a lead screw motor, and a box-dispensing drive device. The front end face of the capsule box has an anti-inversion groove at a non-central position, and the back face has a positioning groove. The inner end of the box-carrying compartment has a start switch and a box-removal switch. The trigger positions of the start switch and the box-removal switch are respectively matched with the end face of the capsule box and the anti-inversion groove. The back face of the box-carrying compartment has a positioning pin whose electromagnetic drive position is matched with the positioning groove of the capsule box.
[0005] The technical advantages of this invention are: a simplified structure, facilitating initial debugging and quick repositioning during future maintenance; and an anti-inversion function, effectively preventing sterilization failure due to incorrect capsule insertion. Attached Figure Description
[0006] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a partial structural diagram of the front of the present invention with the capsule box removed; Figure 3 This is a partial structural diagram of the back of the capsule box of this utility model without the capsule box. Figure 4 This is a schematic diagram of the capsule box of this utility model. Detailed Implementation
[0007] like Figures 1 to 4 As shown, a hydrogen peroxide low-temperature plasma sterilizer cartridge supply device includes a capsule box 1 and a supply device. The capsule box contains several capsules neatly arranged with hydrogen peroxide solution. After being placed into the supply device, the hydrogen peroxide solution is drawn from the capsules by an injection device and injected into the atomization chamber for atomization sterilization. The supply device includes a cartridge compartment 2, a guide rail 3, a lead screw 4, a lead screw motor 5, and a cartridge dispensing drive device 6. The cartridge compartment includes a tray and a cover made of sheet metal. The supply device pushes the inserted capsule box into place. During each sterilization, the needle of the injection device is inserted into a capsule through a pre-drilled hole in the capsule box to draw hydrogen peroxide solution. The entire capsule box is consumed. After completion, the ejection drive ejects the capsule box. The structure described above is essentially the same as existing technology; reference can be made to the background technology and patent literature. The capsule box 1 has an anti-inversion groove 7 at a non-central position on its front end face inserted into the carrier compartment, and a positioning groove 8 on its back. The outer end of the carrier compartment has a capsule box inlet. The inner end of the carrier compartment 2 opposite the inlet has a start switch 9 and a ejection switch 10. The trigger positions of the start switch 9 and ejection switch 10 respectively mate with the end face of the capsule box 1 and the anti-inversion groove 7. The back of the carrier compartment 2 has a positioning pin 11 whose electromagnetic drive position mates with the positioning groove 8 of the capsule box 1. When the capsule box is correctly inserted, the anti-inversion groove avoids the ejection switch, and the end face of the capsule box only triggers the start switch. The lead screw motor starts swallowing the capsule box and executes the normal start-up procedure. The positioning pin, driven by the electromagnetic drive, extends forward and inserts into the positioning groove to lock the capsule box. The lead screw motor then begins to align the capsules one by one to complete the sterilization process. If the capsule box is upside down or inverted, the end face of the capsule box will trigger the ejection switch, which will drive the capsule box out via a lead screw motor.
[0008] The capsule compartment 2 has a moving alignment trigger 12 on its back, and a photoelectric sensor 13 is located on the inner side of the alignment trigger 12's running trajectory. When the start switch is triggered, the capsule box first moves inward a certain distance until the alignment trigger reaches the photoelectric sensor. The control system receives the signal, the lead screw motor stops, and then the lead screw motor rotates back to move the capsule box back until the first capsule is aligned with the needle of the injection device, and then the subsequent sterilization procedure is executed. In this way, if the equipment wears down after long-term use and the needle cannot be aligned with the pre-drilled hole of the capsule, the parameters can be adjusted directly in the system program to recalibrate the capsule box's movement distance, greatly simplifying the maintenance procedure and reducing the cost of replacing parts.
[0009] The capsule compartment 2 has a guide section 14 that bends outwards at the entrance. The guide section is located on the upper, lower and back sides of the capsule compartment entrance to guide the capsule box smoothly into the compartment.
[0010] The capsule box 1 has a directional marking 15 on its surface. The directional marking is an arrow-shaped indentation.
[0011] The lead screw 4 and the lead screw motor 5 are connected by an elastic winding coupling 16.
Claims
1. A hydrogen peroxide low temperature plasma sterilizer supply box device, comprising a capsule box (1) and a supply box device, the supply box device comprising a box carrying bin (2), a guide rail (3), a lead screw (4), a lead screw motor (5) and a box driving device (6), characterized in that, The capsule box (1) is provided with an anti-inversion groove (7) at the front end surface at a non-middle position, and a positioning groove (8) at the back surface; the inside end of the box loading chamber (2) is provided with a starting switch (9) and a box withdrawing switch (10); the trigger parts of the starting switch (9) and the box withdrawing switch (10) are respectively matched with the end surface and the anti-inversion groove (7) of the capsule box (1); the back surface of the box loading chamber (2) is provided with an electromagnetic drive positioning pin (11) which is matched with the positioning groove (8) of the capsule box (1).
2. The hydrogen peroxide low temperature plasma sterilizer supply cassette of claim 1, wherein, The back surface of the box loading chamber (2) is provided with a position matching trigger part (12) which moves with the box loading chamber (2); the inside end of the running track of the position matching trigger part (12) is provided with a photoelectric sensor (13) which is matched with the position matching trigger part (12).
3. The hydrogen peroxide low temperature plasma sterilizer supply cassette of claim 1, wherein, The entrance of the box loading chamber (2) is provided with an outwardly bent guide part (14).
4. The hydrogen peroxide low temperature plasma sterilizer supply cassette of claim 1, wherein, The surface of the capsule box (1) is provided with a direction mark (15).
5. The hydrogen peroxide low temperature plasma sterilizer supply cassette device of any one of claims 1 to 4, wherein, The lead screw (4) and the lead screw motor (5) are connected through a wire winding coupling (16).