Medical elevator sterilization device

Abstract

The utility model provides a medical elevator sterilization device belongs to elevator sterilization technical field, including car, car embedding installation has the button area connecting plate, the outer surface of button area connecting plate is limited to slide with the casing of vertical direction, is equipped with the drive mechanism that acts on the casing in button area connecting plate, the top of casing is fixedly arranged with piston assembly, button area connecting plate is equipped with piston cavity with piston assembly limit sliding cooperation in, piston assembly divides piston cavity into liquid storage cavity and gas storage cavity, is equipped with liquid flow passageway between liquid storage cavity and casing, is equipped with gas flow passageway between gas storage cavity and casing, the outer surface fixed setting of button area connecting plate is communicated with the liquid storage assembly of liquid storage cavity, this application has realized disinfection and drying integration, effectively avoids the problem of inconvenient button and bacterial breeding because of disinfectant residue, more in accord with actual use demand.

Description

Technical Field

[0001] This utility model belongs to the field of elevator sterilization technology, specifically relating to a medical elevator sterilization device. Background Technology

[0002] In public places such as hospitals, elevator buttons, as high-frequency contact surfaces, are highly susceptible to becoming a medium for the spread of pathogenic microorganisms. To ensure public health, common disinfection methods currently include manual wiping and automatic spray devices. Manual wiping relies on periodic operation, which is inefficient and lacks timeliness. While automatic spray devices can achieve timed or sensor-based disinfection, most only focus on liquid coverage, leaving the button area often damp after disinfection and relying on natural air drying, a slow process. This not only affects the user experience but also poses a risk of bacterial growth due to residual liquid film on the surface. Therefore, there is an urgent need for a medical elevator button sterilization device that integrates disinfection and drying functions and is easy to deploy.

[0003] A patent with publication number CN219525972U discloses a medical elevator with disinfection function. It includes a car, a button area connecting plate, an electric screw module, a connecting arm, a guide groove, a liquid storage tank, and spray heads. When the controller detects that there are no passengers inside the car through the car's weighing system, the electric screw module controls the connecting arm to move up and down once along the guide groove. During this process, a pump extracts disinfectant from the liquid storage tank and sprays it onto the button area of ​​the button area connecting plate through the spray heads, thus avoiding frequent cleaning by cleaning personnel.

[0004] However, the above solution can only air dry after the disinfectant is sprayed on the button area. Air drying takes a long time and the effect is generally poor. It is easy for disinfectant residue to remain on the button surface. This will not only make it inconvenient for subsequent elevator passengers to operate the buttons, but also pose a risk of bacteria growth and pollution of the surrounding environment due to the continuous moisture on the surface. Therefore, it is not convenient to promote its practical use. Utility Model Content

[0005] To address the problems existing in the background technology, this utility model provides a medical elevator sterilization device.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A medical elevator sterilization device includes a car. A button area connecting plate is embedded in the side wall of the car near the car door. A housing is slidably mounted on the outer surface of the button area connecting plate in a vertical direction. A driving mechanism acting on the housing is provided inside the button area connecting plate. A piston assembly is fixedly mounted on the top of the housing. A piston cavity is opened in the button area connecting plate and is slidably fitted with the piston assembly. The piston assembly divides the piston cavity into a liquid storage cavity and a gas storage cavity. A liquid flow passage is provided between the liquid storage cavity and the housing, and a gas flow passage is provided between the gas storage cavity and the housing. A liquid storage assembly communicating with the liquid storage cavity is fixedly mounted on the outer surface of the button area connecting plate.

[0008] Furthermore, the driving mechanism includes a motor, and a sliding groove is provided on the button area connecting plate. A slider is slidably positioned in the sliding groove and a lead screw is rotatably positioned therein. The slider is fixedly connected to the housing and threadedly engaged with the lead screw. The motor is fixedly embedded in the button area connecting plate, and the output shaft of the motor is coaxially fixedly connected to the bottom of the lead screw.

[0009] Furthermore, the piston assembly includes a piston rod, which is fixedly mounted on the top of the housing. The top of the piston rod slides into the piston chamber and is fixedly mounted on a piston. Above the piston is a liquid storage chamber, and below the piston is a gas storage chamber.

[0010] Furthermore, the liquid flow passage includes a third channel opened inside the piston rod and communicating with the liquid storage chamber, a first channel and a liquid spraying chamber are opened inside the housing, and the third channel communicates with the liquid spraying chamber through the first channel; a plurality of liquid spraying holes communicating with the liquid spraying chamber are opened on the outer surface of the housing.

[0011] Furthermore, a first one-way valve is fixedly installed in the third channel.

[0012] Furthermore, the gas flow passage includes a fourth channel formed inside the piston rod and communicating with the gas storage chamber, the gas storage chamber being communicated with the fourth channel through a through hole; a second channel and a blowing chamber are formed inside the housing, the fourth channel being communicated with the blowing chamber through the second channel; and several air jet holes communicating with the blowing chamber are formed on the outer surface of the housing.

[0013] Furthermore, the liquid storage assembly includes a liquid storage tank, the liquid storage tank is fixedly installed on the outer surface of the button area connecting plate, and an inlet hole communicating with the liquid storage cavity is opened in the button area connecting plate. The liquid storage tank is connected to the inlet hole through a connecting pipe.

[0014] Furthermore, a second one-way valve is fixedly installed inside the liquid inlet.

[0015] This application has the following beneficial effects:

[0016] 1. During the upward movement of the housing and piston assembly driven by the drive mechanism, the disinfectant in the storage chamber is automatically delivered to the housing through the liquid flow path and sprayed out, thus disinfecting the button area. Simultaneously, outside air is automatically drawn into the air storage chamber through the gas flow path, creating a preliminary drying effect as it flows over the button area. During the descent, the disinfectant in the storage assembly is automatically replenished to the storage chamber, while the air stored in the air storage chamber is blown out in the opposite direction through the gas flow path, providing a secondary drying effect on the disinfected button area. This application integrates disinfection and drying, effectively avoiding inconvenience and bacterial growth caused by disinfectant residue, and better meeting practical usage needs.

[0017] 2. In this application, the spraying and replenishment of disinfectant are completed simultaneously during the lifting and lowering of the housing and piston assembly, without the need for an additional drive source. This not only reduces production costs and system maintenance difficulty, but also simplifies the control logic and improves the practicality and reliability of the overall structure. Attached Figure Description

[0018] The above and other objects, features, and advantages of the present invention will become readily understood by reading the following detailed description of exemplary embodiments with reference to the accompanying drawings. In the drawings, several embodiments of the present invention are shown by way of example and not limitation, and like or corresponding reference numerals denote like or corresponding parts, wherein:

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the button area connection plate structure of this utility model;

[0021] Figure 3 This is a cross-sectional view of the button area connecting plate of this utility model;

[0022] Figure 4 This is a utility model Figure 3 A magnified view of a portion of point A in the middle;

[0023] Figure 5 This is a utility model Figure 3 A magnified view of a portion of point B in the middle;

[0024] Figure 6 This is a utility model Figure 3 A magnified view of a portion of point C in the middle;

[0025] Figure 7 This is a schematic diagram of the liquid spraying chamber and air blowing chamber of this utility model.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. Car; 2. Button area connecting plate; 3. Liquid storage tank; 4. Connecting pipe; 5. Slide groove; 6. Lead screw; 7. Motor; 8. Slider; 9. Housing; 10. Spray chamber; 101. First channel; 11. Air blowing chamber; 111. Second channel; 12. Air jet hole; 13. Piston rod; 14. Third channel; 15. Fourth channel; 16. Through hole; 17. Piston chamber; 171. Liquid storage chamber; 172. Air storage chamber; 18. Piston; 19. First one-way valve; 20. Liquid inlet; 21. Second one-way valve; 22. Spray hole. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Those skilled in the art should understand that the embodiments described below are only some, not all, of the embodiments disclosed. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0029] like Figures 1-7 As shown, the technical solution adopted by this utility model is as follows: a medical elevator sterilization device, including a car 1, a button area connecting plate 2 is embedded in the side wall of the car 1 near the door, a housing 9 is provided on the outer surface of the button area connecting plate 2 in a vertical direction, and a driving mechanism acting on the housing 9 is provided inside the button area connecting plate 2.

[0030] Specifically, the drive mechanism includes a motor 7, and a slide groove 5 is opened on the button area connecting plate 2. The slide groove 5 is used to limit the sliding of a slider 8 and to rotate a lead screw 6. The slider 8 is fixedly connected to the housing 9 and threadedly engaged with the lead screw 6.

[0031] The motor 7 is fixedly embedded in the connecting plate 2 of the button area, and the output shaft of the motor 7 is coaxially fixedly connected to the bottom of the lead screw 6.

[0032] The piston assembly is fixedly installed on the top of the housing 9. A piston cavity 17 is opened in the button area connecting plate 2, which is in a limiting sliding fit with the piston assembly. The piston assembly divides the piston cavity 17 into a liquid storage cavity 171 and a gas storage cavity 172.

[0033] Specifically, the piston assembly includes a piston rod 13, which is fixedly mounted on the top of the housing 9. The top of the piston rod 13 slides into the piston chamber 17 and is fixedly mounted on a piston 18. Above the piston 18 is a liquid storage chamber 171, and below the piston 18 is a gas storage chamber 172.

[0034] The liquid storage chamber 171 has a liquid flow passage between it and the housing 9, and the gas storage chamber 172 has a gas flow passage between it and the housing 9. The outer surface of the button area connecting plate 2 is fixedly provided with a liquid storage component that communicates with the liquid storage chamber 171.

[0035] Specifically, the liquid flow path includes a third channel 14, a third channel 14 that communicates with the liquid storage chamber 171 is opened in the piston rod 13, a first channel 101 and a spray chamber 10 are opened in the housing 9, and the third channel 14 communicates with the spray chamber 10 through the first channel 101; a plurality of spray holes 22 that communicate with the spray chamber 10 are opened on the outer surface of the housing 9, and an atomizing nozzle (not shown in the figure) is provided at the spray hole 22.

[0036] More specifically, a first check valve 19 is fixedly installed in the third channel 14. The first check valve 19 is used to prevent the disinfectant in the third channel 14 from flowing back into the storage chamber 171. The first check valve 19 has a certain opening pressure.

[0037] Specifically, the gas flow path includes a through hole 16, and a fourth channel 15 corresponding to the gas storage chamber 172 is opened in the piston rod 13, with the gas storage chamber 172 connected through the through hole 16 and the fourth channel 15; a second channel 111 and a blowing chamber 11 are opened in the housing 9, with the fourth channel 15 connected to the blowing chamber 11 through the second channel 111. Several jet holes 12 connected to the blowing chamber 11 are opened on the outer surface of the housing 9.

[0038] Specifically, the liquid storage assembly includes a liquid storage tank 3. The liquid storage tank 3 is fixedly installed on the outer surface of the button area connecting plate 2. An inlet hole 20 communicating with the liquid storage cavity 171 is opened in the button area connecting plate 2. The liquid storage tank 3 is connected to the inlet hole 20 through a connecting pipe 4.

[0039] More specifically, a second one-way valve 21 is fixedly installed inside the liquid inlet 20. The second one-way valve 21 is used to prevent the disinfectant in the liquid storage chamber 171 from flowing back into the liquid storage tank 3. The second one-way valve 21 has a certain opening pressure.

[0040] It should be noted that the car 1 is equipped with a weighing system and a controller, both of which are conventional existing technologies and will not be described in detail in this application.

[0041] Working principle: When the weighing system of elevator car 1 detects that there are no passengers inside, the controller starts motor 7, which drives the lead screw 6 to rotate through the output shaft of motor 7, driving the slider 8 to move upward along the slide groove 5. The slider 8 drives the housing 9 and the piston rod 13 and piston 18 fixed thereto to move upward as a whole.

[0042] During this upward movement, the piston 18 moves upward due to the restriction of the second one-way valve 21, which increases the internal pressure of the liquid storage chamber 171, thereby opening the first one-way valve 19. This allows the disinfectant in the liquid storage chamber 171 to flow through the third channel 14 and the first channel 101 and enter the spray chamber 10. Finally, it is atomized and sprayed out through the spray hole 22 to cover the button area for disinfection.

[0043] At the same time, the upward movement of piston 18 creates a negative pressure in the air storage chamber 172. Under the suction effect of the negative pressure, outside air is drawn into the blowing chamber 11 through the jet hole 12, and then flows sequentially through the second channel 111, the fourth channel 15, and the through hole 16, finally entering the air storage chamber 172 for storage. When the airflow passes through the button area, it can play a preliminary drying role.

[0044] After the disinfection is completed, the output shaft of the control motor 7 reverses, causing the slider 8 to move downward along the direction of the slide groove 5, thereby causing the housing 9, piston rod 13 and piston 18 to move downward as a whole.

[0045] During this descent, the piston 18 moves downward, creating a negative pressure in the liquid storage chamber 171. At this time, the first one-way valve 19 closes, and the second one-way valve 21 opens under the action of negative pressure, allowing the disinfectant in the liquid storage tank 3 to be drawn into the liquid storage chamber 171 through the connecting pipe 4 and the inlet hole 20, in preparation for the next disinfection.

[0046] At the same time, the downward movement of piston 18 increases the internal pressure of air storage chamber 172, causing the stored air to flow along the opposite path to that during intake, that is, sequentially through through hole 16, fourth channel 15, and second channel 111 into air blowing chamber 11, and finally blown towards the button area through jet hole 12. This process utilizes the stored air to perform a secondary drying of the disinfected surface, further shortening the drying time.

[0047] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A medical elevator sterilization device, comprising a car (1), wherein a button area connecting plate (2) is embedded in the side wall of the car (1) near the car door, characterized in that, The outer surface of the button area connecting plate (2) is provided with a housing (9) that is slidably limited in the vertical direction, and the button area connecting plate (2) is provided with a driving mechanism that acts on the housing (9); A piston assembly is fixedly installed on the top of the housing (9). A piston cavity (17) is opened in the button area connecting plate (2) and is limited and slidably engaged with the piston assembly. The piston assembly divides the piston cavity (17) into a liquid storage cavity (171) and a gas storage cavity (172). A liquid flow passage is provided between the liquid storage chamber (171) and the shell (9), and a gas flow passage is provided between the gas storage chamber (172) and the shell (9). A liquid storage component communicating with the liquid storage chamber (171) is fixedly provided on the outer surface of the button area connecting plate (2).

2. The medical elevator sterilization device according to claim 1, characterized in that, The driving mechanism includes a motor (7), and a sliding groove (5) is provided on the button area connecting plate (2). A slider (8) is provided in the sliding groove (5) for both limiting sliding and rotating, and a lead screw (6) is provided. The slider (8) is fixedly connected to the housing (9) and threadedly engaged with the lead screw (6). A motor (7) is fixedly embedded in the connecting plate (2) of the button area, and the output shaft of the motor (7) is coaxially fixedly connected to the bottom of the lead screw (6).

3. The medical elevator sterilization device according to claim 1, characterized in that, The piston assembly includes a piston rod (13), the piston rod (13) is fixedly disposed on the top of the housing (9), the top of the piston rod (13) slides into the piston chamber (17) and is fixedly disposed on a piston (18); the upper part of the piston (18) is a liquid storage chamber (171), and the lower part of the piston (18) is a gas storage chamber (172).

4. A medical elevator sterilization device according to claim 3, characterized in that, The liquid flow passage includes a third channel (14) opened in the piston rod (13) and connected to the liquid storage chamber (171). The housing (9) has a first channel (101) and a spray chamber (10). The third channel (14) is connected to the spray chamber (10) through the first channel (101). The outer surface of the housing (9) has a plurality of spray holes (22) connected to the spray chamber (10).

5. A medical elevator sterilization device according to claim 4, characterized in that, The first check valve (19) is fixedly installed in the third channel (14).

6. A medical elevator sterilization device according to claim 3, characterized in that, The gas flow passage includes a fourth channel (15) opened in the piston rod (13) and connected to the gas storage chamber (172), and the gas storage chamber (172) is connected to the fourth channel (15) through a through hole (16); a second channel (111) and a blowing chamber (11) are opened in the housing (9), and the fourth channel (15) is connected to the blowing chamber (11) through the second channel (111); a plurality of jet holes (12) connected to the blowing chamber (11) are opened on the outer surface of the housing (9).

7. A medical elevator sterilization device according to claim 1, characterized in that, The liquid storage assembly includes a liquid storage tank (3). The liquid storage tank (3) is fixedly installed on the outer surface of the button area connecting plate (2). The button area connecting plate (2) has an inlet hole (20) that communicates with the liquid storage chamber (171). The liquid storage tank (3) is connected to the inlet hole (20) through a connecting pipe (4).

8. A medical elevator sterilization device according to claim 7, characterized in that, A second check valve (21) is fixedly installed inside the liquid inlet (20).

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