Foot pedal operated automatic disinfecting device

Abstract

The utility model discloses a kind of foot-pedal type automatic disinfection device, it is related to weighing technology field, the disinfection device includes body weight scale, disinfection bottle is placed in its inside and close to the position of treading;Linkage assembly, it is arranged in the inside of body weight scale, for converting the gravity of treading into the power of pressing disinfection bottle.The utility model said a kind of foot-pedal type automatic disinfection device, since the power of treading body weight scale is converted into trigger power of disinfection equipment by using linkage mode, when user treads weighing platform, the gravity of user is detected by weighing platform, while the pedal below is pushed down, traction spring starts to store energy now, when user gets up, power can be conducted to disinfection mechanism, to complete the trigger of disinfection, so, effectively solve the technical problem that the body weight scale with disinfection function in use is complicated in structure and disinfection efficiency is low, to realize the power generated during detection, without separately installing power source.

Description

Technical Field

[0001] This utility model relates to the field of weighing technology, and in particular to a foot-operated automatic disinfection device. Background Technology

[0002] In public places such as libraries, bookstores, supermarkets, and hospitals, weighing scales are public equipment that users frequently come into contact with. The areas they step on are prone to bacteria, viruses, and other pathogens due to repeated use by people, posing a risk of cross-infection. Especially in the post-pandemic era, the demand for real-time and efficient disinfection of such equipment has increased significantly.

[0003] Currently, a Chinese patent application with patent number "CN202221660633.1" discloses a multifunctional physical examination device, belonging to the field of medical device technology. The device includes a main body structure, comprising a support shell with a weighing device housed within its inner cavity. A support plate is located on top of the weighing device, and a height measuring device is located on one side of the support plate. A transmission mechanism is also included, located on one side of the support shell. This transmission mechanism includes a conveyor belt positioned on the surface of the weighing device, with two drive shafts located within its inner cavity, both ends of which are located within the inner cavity of the support shell. A sterilization mechanism is located at the bottom of the support shell. While it's possible to step on the top of the conveyor belt during weighing, and then have it move after the examination, this method not only affects the accuracy of the weighing but also, due to the inherent mobility of the weighing platform, it is prone to slippage under external forces, posing a certain risk.

[0004] However, during the implementation of the above technical solution, at least the following technical problems were discovered:

[0005] The disinfection methods for public weighing scales are cumbersome and inefficient: There are two main categories: manual disinfection and automatic disinfection. Manual disinfection involves staff periodically spraying or wiping the surface of the scale with disinfectant. This method has significant drawbacks: firstly, it is inefficient and cannot meet the real-time disinfection needs of high-frequency use scenarios, easily leading to pathogen accumulation during disinfection intervals; secondly, manual operation requires additional labor costs, and the disinfection effect depends on the operator's conscientiousness, potentially overlooking edges and corners, thus failing to guarantee comprehensive disinfection. Automatic disinfection devices exist, and some solutions have been developed to integrate with public equipment, but their application to weighing scales still faces technical limitations.

[0006] Power dependence and structural complexity issues: Most automatic disinfection devices require independent power drive (such as continuously running spray motors), which not only increases energy consumption, but also requires additional circuit layout. The low integration with the weighing scale leads to an increase in the overall size of the device and increased difficulty in installation and maintenance, making it unsuitable for public areas with limited space (such as weighing scales next to library service desks).

[0007] The disinfection action is disconnected from the usage scenario: Existing automatic disinfection devices mostly adopt timed triggering or manual button triggering modes, which cannot be linked with the user's core usage action of stepping on the scale. For example, after weighing, the user needs to press the disinfection button to start disinfection, which is not convenient to operate and is easy for the user to forget to trigger it, resulting in untimely disinfection. If timed disinfection is used, it may be activated during the user's weighing process, causing disinfectant to be accidentally sprayed onto the user's clothes, or it may not be disinfected within the interval between two uses, still posing a risk of cross-infection. To address this, we propose a foot-operated automatic disinfection device. Utility Model Content

[0008] (a) Technical problems to be solved

[0009] To address the shortcomings of existing technologies, this utility model provides a foot-operated automatic disinfection device, which solves the technical problems of existing scales with disinfection functions having cumbersome structures and low disinfection efficiency during use.

[0010] (II) Technical Solution

[0011] To achieve the above objectives, this utility model provides the following technical solution:

[0012] A foot-operated automatic disinfection device, the disinfection device comprising:

[0013] The weighing scale has a sterilization bottle placed inside it, near the foot pedal area;

[0014] The linkage component, located inside the scale, is used to convert the force of stepping into the power to press the sterilization bottle.

[0015] The linkage component is installed on the pedal of the weighing scale, and the rear end of the pedal is hinged to the lifting rod inside the weighing scale. The lifting rod is connected to a pin on the side facing the disinfection bottle, and the pin corresponds to the top of the disinfection bottle.

[0016] When the pedal is under pressure, the pedal drives the lifting rod to move upward; conversely, when the pedal is not pressed, the pin on the pedal presses the disinfection bottle, causing the disinfection bottle to spray disinfectant onto the foot position of the scale.

[0017] Preferably, the pedal is connected to a fixed plate inside the scale via a traction spring at its top, and the traction spring is always in a compressed state; wherein, when the pedal is not stepped on, the lifting rod, under the elastic force of the traction spring, drives the pin on it to apply pressure to the sterilization bottle.

[0018] Preferably, the scale includes a base, and the rear end of the base is connected to an upright column extending vertically, and the lifting rod is disposed inside the upright column;

[0019] The base has a weighing platform embedded in its top, which is located above the pedal. When the person to be tested steps on the weighing platform, the pedal moves downward under the action of gravity.

[0020] Preferably, the rear end of the pedal is connected to a connecting rod, and the lifting rod is hinged to the end of the connecting rod away from the pedal. The middle part of the connecting rod is connected to a fixed seat inside the column through a rotating shaft.

[0021] When the weighing platform is stepped on, the pedal rotates around the pivot between the connecting rod and the fixed seat, causing the lifting rod to move upward.

[0022] Preferably, the top of the sterilization bottle is provided with a pressing head, and the outlet of the pressing head extends to the front end of the column through an extension tube, corresponding to the top of the weighing platform.

[0023] Preferably, the disinfection device further includes a cleaning component for cleaning the top of the scale, and the cleaning component is located below the disinfection bottle; wherein the cleaning component includes a rotatable cleaning rod, and the cleaning rod is driven to rotate by a motor installed inside the column, and the stepping position on the top of the scale is within the coverage area of ​​the rotating cleaning rod.

[0024] Preferably, the disinfection device further includes a cleaning component for cleaning the top of the scale, and the cleaning component is located below the disinfection bottle. The cleaning component includes a rotatable cleaning rod, which rotates under the drive of a drive structure, and the stepping position on the top of the scale is within the coverage area of ​​the rotating cleaning rod.

[0025] Preferably, the drive structure includes a transmission rod connected to the lifting rod, and the transmission rod is inserted into a threaded cylinder; wherein, the threaded cylinder is connected to the inner wall of the column through a bearing, the outer wall of the transmission rod is provided with balls, and the balls correspond to the threaded grooves inside the threaded cylinder; when the transmission rod moves into the threaded cylinder, the threaded cylinder rotates under the squeezing action of the balls on the transmission rod.

[0026] The cleaning rod is connected to the threaded cylinder, and when the transmission rod rotates, the cleaning rod on it can rotate together with the transmission rod.

[0027] Preferably, the cleaning rod has a sliding groove at one end facing the threaded cylinder, and the eccentric column at the bottom of the threaded cylinder is inserted into the sliding groove; wherein, the cleaning rod is hinged to the column via a rotating shaft, and when the threaded cylinder rotates, it can drive the cleaning rod to rotate around the hinge point between itself and the column.

[0028] Preferably, the threaded cylinder includes a movable disc with balls, and an output rod is connected to the center of the movable disc via a ratchet structure. The output rod is linked with a lifting rod. When the lifting rod drives the output rod to move downward, the output rod drives the movable disc to move synchronously via the ratchet structure. Conversely, when the lifting rod drives the output rod to move upward, the movable disc and the output rod rotate relative to each other.

[0029] The ratchet structure includes an anti-reverse ratchet located at the end of the output lever, and the anti-reverse ratchet is located in the ratchet groove at the top of the movable disc. The inner wall of the ratchet groove is provided with several locking teeth, and the locking teeth correspond to the spring pieces on the outer wall of the anti-reverse ratchet.

[0030] (III) Beneficial Effects

[0031] 1. By employing a linkage mechanism to convert the power generated when the user steps on the weighing platform into triggering power for the disinfection and cleaning devices, when the user steps on the platform, their weight is detected by the platform, and the pedal located below the platform is pushed downwards. The power is then transmitted through the pedal to the lifting rod, which in turn transmits the power to the traction spring. The traction spring absorbs the power and begins to store energy. When the user stands up, the power is transmitted to the disinfection mechanism, thus triggering the disinfection process. Therefore, this effectively solves the technical problems of existing weighing scales with disinfection functions, such as cumbersome structure and low disinfection efficiency. It fully utilizes the power generated during detection without requiring a separate power source. Furthermore, it ensures that the device does not trigger during normal detection, guaranteeing overall safety and stability.

[0032] 2. By using a motor as the power source for the cleaning rod, the cleaning rod is rotated to clean the surface of the weighing platform, ensuring the cleanliness of the top of the weighing platform and facilitating quick reset for reuse.

[0033] 3. Utilizing the power generated by the user stepping on the lifting rod, a disc-shaped connecting plate is installed below the disinfection equipment. An eccentric column is positioned near the edge of the disc at its bottom, interlocking with a corresponding sliding groove at the end of the cleaning rod, thus forming an eccentric structure. Simply rotating the connecting plate will cause the cleaning rod to rotate periodically. To further utilize the power generated by the user's footsteps, a transmission rod is fixedly installed below the connecting head. The balls on the transmission rod correspond to the threaded grooves on the inner wall of the threaded cylinder. Therefore, when the transmission rod moves downwards, the external balls compress the screw... The grooves in the grooves drive the connecting plate to rotate, providing power to the connecting plate and thus transmitting the stored power to the cleaning rod. To prevent the cleaning rod from moving when the user steps on it, a ratchet structure with a one-way rotation function is installed between the output rod and the movable plate. This way, the output rod will remain relatively stationary with the movable plate only when it moves downward. Conversely, when the output rod moves upward, the ratchet's anti-reverse action causes the output rod and the movable plate to rotate relative to each other, thus preventing the movable plate from rotating. This allows for periodic cleaning without the need for a separate power source. Attached Figure Description

[0034] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0035] Figure 1 This is one of the overall structural diagrams of an embodiment of the present utility model;

[0036] Figure 2 This is a structural diagram of the linkage component in an embodiment of the present utility model;

[0037] Figure 3 This is one of the motion structure diagrams of the disinfection bottle in the embodiments of this utility model;

[0038] Figure 4 This is the second kinematic diagram of the sterilization bottle in the embodiments of this utility model;

[0039] Figure 5 This is a schematic diagram of the movement of the motor-driven cleaning rod in an embodiment of this utility model;

[0040] Figure 6 This is the second overall structural diagram of an embodiment of the present utility model;

[0041] Figure 7 This is a schematic diagram of the driving structure in an embodiment of the present invention;

[0042] Figure 8 This is an exploded view of the driving structure in an embodiment of this utility model;

[0043] Figure 9 This is an exploded view of the transmission rod in an embodiment of this utility model;

[0044] Figure 10 This is a schematic diagram illustrating the motion of the drive structure driving the cleaning rod to rotate in an embodiment of this utility model.

[0045] Legend:

[0046] 11. Base; 12. Column; 13. Display panel; 14. Weighing platform;

[0047] 2. Storage tube;

[0048] 3. Cleaning components; 31. Motor; 32. Cleaning rod; 33. Brush;

[0049] 4. Sterilizer; 41. Sterilizer bottle; 42. Pressing head; 43. Extension tube;

[0050] 51. Fixing plate; 52. Connecting plate; 53. Traction spring; 54. Lifting rod; 55. Connecting rod; 56. Pedal; 57. Fixing seat; 58. Pin;

[0051] 61. Connecting disc; 62. Threaded cylinder; 63. Eccentric column; 64. Transmission rod; 641. Output rod; 642. Movable disc; 643. Anti-reverse ratchet; 644. Ratchet groove; 645. Fixed column; 65. Rotating shaft; 66. Connecting head; 67. Sliding groove. Detailed Implementation

[0052] This application provides a foot-operated automatic disinfection device, which effectively solves the technical problems of existing disinfection scales having cumbersome structures and low disinfection efficiency. In the use of existing disinfection scales, the power generated when the user steps on the scale is converted into triggering power for the disinfection device and cleaning structure through a linkage mechanism. When the user steps on the weighing platform, the user's weight is detected by the platform, and the pedal located below the platform is pushed downwards. The power is then transmitted through the pedal to the lifting rod, which in turn transmits the power to the traction spring. The traction spring absorbs the power and begins to store energy. When the user stands up, the power is transmitted to the disinfection mechanism, thus triggering the disinfection process. This fully utilizes the power generated during detection, eliminating the need for a separate power source. Furthermore, it ensures that the device does not trigger during normal detection, guaranteeing overall safety and stability.

[0053] Example 1: The technical solution in this application example effectively solves the technical problems of existing scales with disinfection functions having cumbersome mechanisms and low disinfection efficiency during use. The overall idea is as follows:

[0054] To address the problems existing in the prior art, this utility model provides a foot-operated automatic disinfection device. This disinfection equipment mainly consists of four parts, the first being a weighing mechanism, which primarily uses a weighing scale with a display function, such as... Figure 1 As shown, it provides support and storage space for subsequent disinfection and power mechanisms; secondly, there is a disinfection mechanism for disinfecting the weighing system, which we place near the user's foot placement to facilitate disinfection of the foot placement area after the user's measurement. Disinfection is necessary because existing scales require the user's foot to be in contact with the detection chip when measuring body fat, which poses a risk of cross-infection. Therefore, we need to disinfect and clean the scale after each user's use to avoid affecting the next user's use; thirdly, there is the transmission mechanism. Since most existing scales rely on manual periodic cleaning, the timeliness of disinfection is affected, and the existing... The electric control method has significant limitations, requiring the installation of various sensors, such as infrared and pressure sensors, and also necessitating an independent power source for the disinfection equipment. Therefore, we utilize the user's action of stepping on the scale during testing as the basis for power triggering, while simultaneously collecting the energy generated during this process to power subsequent disinfection and cleaning. This method boasts high accuracy. The final component, the cleaning mechanism, is designed to clean the stepping area on top of the scale for the next user. This mechanism comprises two types: one is electrically controlled, using motor 31 as the power source; the other also utilizes the user's stepping action as the power source. The specific structure is as follows:

[0055] Weighing mechanisms, such as Figure 1 As shown, it mainly includes a rectangular base 11, on which a similarly rectangular weighing platform 14 is embedded. The weighing platform 14 has a weighing function and can be a common scale or other weighing device. Only the bottom of the weighing platform 14 is connected to the base 11; the rest is not in contact. This allows the weighing platform 14 to move downwards when the user steps on it, providing a power source for the subsequent transmission mechanism. A vertically upward-pointing rod is located at the rear of the base 11. The column 12 has a display panel 13 on its top for displaying the detected data to facilitate timely understanding of the test results. The disinfection, cleaning, and transmission mechanisms are all located in the column 12 and the storage cylinder 2 at the front end of the column 12. The transmission mechanism is mainly located in the column 12, while the cleaning and disinfection mechanisms are located in the storage cylinder 2. A sealing plate is hinged to the front end of the storage cylinder 2. Opening the sealing plate reveals the sterilizer 4 inside the storage cylinder 2, which can be replaced or disinfectant can be added.

[0056] Disinfection facilities, such as Figure 2 - Figure 4 As shown, the disinfection mechanism is installed in the storage cylinder 2 at the front end of the column 12, corresponding to the weighing platform 14 on the base 11, so that alcohol or disinfectant can be sprayed onto the weighing platform 14, thereby disinfecting the area on top of the weighing platform 14 where the user has stood, facilitating subsequent use and avoiding cross-infection. Secondly, the disinfection mechanism (i.e., cleaning component 3) mainly uses a common alcohol disinfection bottle 41, which has a pressing head 42. Pressing the bottle squeezes out the alcohol. To ensure accurate spraying of alcohol onto the weighing platform 14, an extension tube 43 is connected to the outlet of the pressing head 42, with the other end of the extension tube 43 extending to the front end of the column 12 and corresponding to the top of the weighing platform 14. Figure 1 As shown, this allows alcohol to be guided to the weighing platform 14 when the pressing head 42 is pressed, thereby disinfecting the weighing platform 14 and providing a basis for subsequent mechanical transmission. Based on this, it is only necessary to control the pressing head 42 on the disinfection bottle 41 to be pressed after the user steps on it. In order not to affect the user's normal use, disinfection is not performed when the user is standing on the weighing platform 14, but after the user gets off. This requires making full use of the force accumulated when stepping on the platform and releasing it after stepping on it, thereby avoiding the disinfection bottle 41 spraying alcohol onto the weighing platform 14 when the user is standing on it.

[0057] Transmission structure, such as Figure 2 - Figure 4 As shown, the main purpose is to utilize the gravity generated when the user steps on the weighing platform 14 as a power source. This eliminates the need for a separate power source, such as an electric actuator or other electrical equipment, thus avoiding the possibility of errors in the alcohol spraying control system. Based on the above, in order to collect the pressure of the user stepping on the weighing platform 14, we set a pedal 56 below the weighing platform 14. Therefore, when the weighing platform 14 is stepped on, the user's gravity is transmitted to the pedal 56 through the weighing platform 14, causing the pedal 56 to move downwards. Since the weighing platform 14 is located on the pedal 56... Therefore, the pedal 56 will not affect the weighing platform 14's inspection of the user's weight. Furthermore, in order to transmit the downward force of the pedal 56 to the sterilization bottle 41, we also install a vertically extending lifting rod 54 in the column 12. Utilizing the lever principle, we convert the downward force of the pedal 56 into the lifting force of the lifting rod 54. Specifically, we first connect a connecting rod 55 to the rear end of the pedal 56, using this connecting rod 55 as a lever, forming a single unit with the pedal 56. The end of the connecting rod 55 furthest from the pedal 56 is hinged to the bottom end of the lifting rod 54. Figure 3As shown in the enlarged view, we also set two left-right opposite fixed seats 57 at the position of the base 11 near the column 12, and connect a shaft between the two fixed seats 57. Using this shaft as the fulcrum of the lever, the middle part of the connecting rod 55 is connected to the shaft, thus forming a lever structure. The position from the pedal 56 to the shaft is the power arm, while the connection from the shaft to the connection between the connecting rod 55 and the lifting rod 54 is the resistance arm. Therefore, when the weighing platform 14 is stepped on, the pedal 56 rotates around the pivot between the connecting rod 55 and the fixed seat 57, driving the lifting rod 54 to move upward, thus completing the raising of the lifting rod 54.

[0058] Since this process involves user operation and alcohol cannot be sprayed, the reset state of the lifting rod 54—that is, the state when the user steps off the weighing platform 14—is used as the trigger condition for the disinfection bottle 41. To store the power generated during stepping for subsequent spraying, a fixing plate 51 is installed inside the column 12 above the lifting rod 54, corresponding vertically to the connecting plate 52 at the top of the lifting rod 54. The fixing plate 51 and the connecting plate 52 are connected by a traction spring 53. Figure 2 As shown, the traction spring 53 is always in a compressed state. When the user steps on the weighing platform 14, the upward force of the lifting rod 54 is absorbed by the traction spring 53 (when the lifting rod 54 rises, the traction spring 53 is compressed and begins to store energy). At this time, the pin 58 on the lifting rod 54 does not apply pressure to the pressing head 42 on the top of the sterilization bottle 41. Figure 4 As shown, the disinfection mechanism is not triggered at this time; conversely, when the pedal 56 is not pressed, the lifting rod 54, under the elastic force of the traction spring 53, drives the pin 58 on it to apply pressure to the disinfection bottle 41, as shown. Figure 3 As shown, at this time, the pin 58 applies pressure to the pressing head 42 on the disinfection bottle 41, causing it to move downwards and squeeze the alcohol out of the disinfection bottle 41. At this time, the alcohol enters the extension tube 43 from the outlet of the pressing head 42, and then is sprayed onto the top of the weighing platform 14 through the extension tube 43, thus completing the alcohol spraying action. The alcohol spraying is carried out after the user steps on the weighing platform 14, that is, when there is no one on the platform, so there will be no spraying on the user's feet. Moreover, it uses the user's action during the test as the power source, so there is no need to install an additional power source. This not only ensures the stability of the power output, but also avoids the problem of false triggering. For example, existing sensor faucets will be triggered as soon as a user passes by, which seriously affects the user experience. In addition, when the detection equipment is malfunctioning, there may be situations where it cannot be triggered or is over-triggered. However, by using mechanical transmission and utilizing the user's action, there will be no unnecessary action, and there will be no false triggering or trigger malfunction.

[0059] In the specific implementation process, the triggering of the disinfection mechanism is mainly divided into two steps. The first step is to accumulate force. The user to be tested stands on the weighing platform 14 placed above the base 11. Since the pedal 56 is located below the weighing platform 14 and is in contact with the bottom of the weighing platform 14, the weighing platform 14 and the pedal 56 will move downward under the user's gravity when the user stands on the weighing platform 14. Since the connecting rod 55 connected to the pedal 56 is not only hinged to the lifting rod 54, but also connected to the fixed seat 57 through the shaft in the middle, when the pedal 56 moves down, the connecting rod 55 and the shaft above it form a lever structure, thereby pushing the end of the connecting rod 55 away from the pedal 56 upward. Figures 3 to 4 As shown, at this time, the pin 58 on the lifting rod 54 moves upward and separates from the pressing head 42 on the top of the sterilization bottle 41. The pressing head 42 rises under the action of its internal spring, as shown. Figure 4 As shown; at the same time, the traction spring 53 located at the top of the lifting rod 54 is compressed and begins to store force, preparing for subsequent triggering;

[0060] The second step is triggering. After the user completes the test, they step off the weighing platform 14. Then, because the traction spring 53 at the top of the lifting rod 54 is in a charged state during the user test, the elastic force of the traction spring 53 pushes the lifting rod 54 downward after the user completes the test. Since the lifting rod 54 is connected to the pin 58, when the lifting rod 54 moves the pin 58 downward, the pin 58 applies pressure to the pressing head 42 on the disinfection bottle 41, causing it to move downward and squeeze the alcohol out of the disinfection bottle 41. At this time, the alcohol enters the extension tube 43 from the outlet of the pressing head 42, and then is sprayed onto the top of the weighing platform 14 through the extension tube 43. This completes the alcohol spraying action. The alcohol spraying is carried out after the user has stepped on the platform, that is, when there is no one on the weighing platform 14, so that the alcohol will not be sprayed onto the user's feet.

[0061] Example 2: Based on Example 1, this application provides a feasible electrically controlled sweeping mechanism. The overall concept is as follows:

[0062] Another key focus of this application is the cleaning of the symmetrical platform 14. This cleaning method mainly consists of two types: one is electrically controlled, using motor 31 as the power source; the other also utilizes the user's pedaling motion as the power source. We will first explain the electrically controlled method, the specific structure of which is as follows:

[0063] To clean the weighing platform 14 after users have stepped on it, the cleaning component 3 is positioned below the disinfection bottle 41. Therefore, it's necessary to remove any debris or crumbs from it. For this purpose, a traditional drive structure is used as the power source: motor 31. Of course, other power sources with the same function or structure can also be used, such as servo motors. Figure 5As shown, we install a cleaning rod 32 with a brush 33 on the output shaft of the motor 31. Since the weighing platform 14 is located within the coverage area of ​​the rotating cleaning rod 32, the top of the weighing platform 14 can be cleaned when the motor 31 drives the cleaning rod 32 to rotate.

[0064] Example 3: Based on Example 1, this application provides a feasible mechanically driven cleaning mechanism. The overall concept is as follows:

[0065] This embodiment uses a mechanical method to power the cleaning mechanism, thus eliminating the need for a separate power unit, such as motor 31. It only needs to collect the power generated when the user steps on it, which not only reduces energy waste but also avoids accidental activation. The specific structure is as follows:

[0066] In order to utilize the power generated when the user steps on pedal 56, we use the power generated when the disinfection mechanism is triggered as the power source for triggering the cleaning mechanism. Therefore, by connecting the disinfection mechanism to the transmission mechanism, the transmission mechanism can simultaneously transmit power to the cleaning mechanism while driving the disinfection mechanism, so as to complete the triggering of two tasks at the same time. Based on this, we set the cleaning mechanism below the disinfection bottle 41, as follows. Figure 6 and Figure 7 As shown, a rotatable cleaning rod 32 is also required, and the stepping position on the top of the weighing platform 14 is within the coverage area of ​​the rotation of the cleaning rod 32. In this way, when the cleaning rod 32 rotates, it can clean the debris and surface on the weighing platform 14.

[0067] As can be seen from the above, in order to utilize the user's weight when stepping on the device, it needs to be connected to the lifting rod 54. However, the lifting rod 54 can only move up and down, while we need a rotational function. Therefore, a drive structure is required that can convert the lifting force of the lifting rod 54 into the rotational force of the cleaning rod 32. To this end, we first install a transmission rod 64, which is different from the lifting rod 54, on the lifting rod 54. The transmission rod 64 transmits the power of the lifting rod 54 during its up and down movement to the drive mechanism. Then, a connecting plate 61 with a threaded cylinder 62 is set below the transmission rod 64. The connecting plate 61 is connected to the cleaning rod 32 and can rotate synchronously with the connecting plate 61. In addition, the transmission rod 64 is inserted into the threaded cylinder 62, and the threaded cylinder 62 is connected to the cleaning rod 32. The bearing is connected to the inner wall of the column 12, and can only rotate but cannot be raised or lowered. Therefore, when the transmission rod 64 moves up and down with the lifting rod 54, it can be inserted into the threaded cylinder 62. So, we use the telescopic process to set ball bearings on the outer wall of the transmission rod 64 and threaded grooves on the inner wall of the threaded cylinder 62, and the two correspond to each other (that is, the ball bearings on the outer side of the connecting plate 61 are located in the threaded grooves on the inner wall of the threaded cylinder 62). So when the transmission rod 64 moves into the threaded cylinder 62, the threaded cylinder 62 rotates under the squeezing action of the ball bearings on the transmission rod 64. Since the cleaning rod 32 is connected to the threaded cylinder 62, when the transmission rod 64 rotates, the cleaning rod 32 on it can also rotate with the transmission rod 64, thereby completing the function of cleaning the surface of the symmetrical counterweight 14.

[0068] However, during use, it was found that since both the upward and downward movement of the transmission rod 64 cause the threaded cylinder 62 to rotate, when the user is testing (i.e., the transmission rod 64 rises, the cleaning rod 32 rotates in the opposite direction), the cleaning rod 32 will collide with the user standing on the weighing platform 14. Therefore, we need a device with intermittent operation to assist, that is, to rotate the threaded cylinder 62 when the transmission rod 64 descends, and not when the transmission rod 64 rises. To solve the above problem, we divided the transmission rod 64 into a movable disc 642 with ball bearings and an output rod 641 connected to the lifting rod 54 (the output rod 641 is connected to the connecting head 66 on the lifting rod 54). The output rod 641 and the movable disc 642... The components 42 are connected by a fixed post 645. The screw of the fixed post 645 passes through a through hole in the movable plate 642 and a hole in the anti-reverse ratchet 643, and connects to the bottom end of the output rod 641. A ratchet structure with unidirectional rotation function is set between them. When the output rod 641 moves downward, it drives the movable plate 642 to move synchronously via the ratchet structure, forming a single unit. Conversely, when the lifting rod 54 drives the output rod 641 upward, the movable plate 642 and the output rod 641 rotate relative to each other, operating independently. This eliminates the torque effect caused by the upward movement of the output rod 641, thus enabling unidirectional rotation control. A conventional ratchet device can be used for the ratchet structure. Figure 9 As shown, an anti-reverse ratchet 643 is located at the end of the output lever 641, and the anti-reverse ratchet 643 is situated in the ratchet groove 644 at the top of the movable disc 642. The inner wall of the ratchet groove 644 is provided with several locking teeth, which correspond to the spring pieces on the outer wall of the anti-reverse ratchet 643. This structure shows that when the output lever 641 rotates counterclockwise, the spring pieces on the outer wall of the anti-reverse ratchet 643 engage with the locking teeth on the inner wall of the ratchet groove 644, preventing separation; at this time, the two form a single unit. Conversely, when the output lever 641 rotates clockwise... The back of the spring contacts the teeth on the inner wall of the ratchet groove 644, but the two cannot engage with each other, thus forming a relatively independent structure. At this time, although the movable disc 642 is pulled up by the output rod 641, the movable disc 642 can rotate along the thread on the inner wall of the threaded cylinder 62 without transmitting torque to the output rod 641. This can form intermittent control, that is, it can drive the threaded cylinder 62 to rotate when moving down, and can eliminate the influence on the threaded cylinder 62 by the rotation of the movable disc 642 itself when moving up.

[0069] However, a problem remains: the threaded cylinder 62 can only rotate in one direction. If the cleaning rod 32 is directly mounted on the threaded cylinder 62, it would need to rotate 360°. Therefore, we employ an eccentric reciprocating motion mechanism. A sliding groove 67 is provided at the end of the cleaning rod 32 facing the threaded cylinder 62, and the eccentric column 63 at the bottom of the connecting plate 61 (installed at the bottom of the threaded cylinder 62) is inserted into the sliding groove 67. Simultaneously, the middle of the cleaning rod 32 is hinged to the rotating shaft 65 at the front end of the column 12. Thus, the cleaning rod 32 will reciprocate around the rotating shaft 65 under the drive of the threaded cylinder 62. Figure 10 As shown, when the threaded cylinder 62 rotates, it can drive the cleaning rod 32 to rotate around its hinge point with the column 12, thereby cleaning. Furthermore, when the connecting plate 61 rotates in one direction, it can drive the cleaning rod 32 to reciprocate, thus eliminating the effect of the threaded cylinder 62 only being able to rotate in one direction.

[0070] In the specific implementation process, the cleaning mechanism utilizes the power generated by the up-and-down movement of the lifting rod 54 to rotate, which is divided into three steps; the first step is transmission; since we set a connecting head 66 at the front end of the lifting rod 54 that can be linked with it, and the connecting head 66 is fixedly connected to the output rod 641 in the transmission rod 64, the lifting rod 54 can drive the output rod 641 to perform synchronous lifting and lowering movements when it moves up and down; and since a disc-shaped movable plate 642 is set on one end of the output rod 641 that is inserted into the threaded cylinder 62. Furthermore, the movable disc 642 is connected to the output rod 641 via a ratchet structure. Therefore, when the output rod 641 moves downward, the balls on the outer side of the movable disc 642 slide along the threaded groove on the inner wall of the threaded cylinder 62. At this time, the movable disc 642 rotates clockwise under the action of the thread. The spring piece on the outer wall of the anti-reverse ratchet 643 engages with the locking teeth on the inner wall of the ratchet groove 644 and cannot be separated. At this time, the two form a whole, making the movable disc 642 unable to rotate. Therefore, the threaded cylinder 62, which interacts with it, will rotate under the squeezing action.

[0071] The second step is cleaning; as the threaded cylinder 62 rotates, it drives the connecting plate 61 located at its bottom to rotate as well. This is because the eccentric column 63 at the bottom of the connecting plate 61 is connected to the sliding groove 67 at the end of the cleaning rod 32; simultaneously, the middle part of the cleaning rod 32 is hinged to the column 12 via a rotating shaft. Thus, the cleaning rod will reciprocate around the rotating shaft under the drive of the threaded cylinder 62. Figure 10 As shown, when the threaded cylinder 62 rotates, it can drive the cleaning rod 32 to rotate around the hinge point between it and the column 12, thereby cleaning. It can also drive the cleaning rod 32 to reciprocate when the connecting plate 61 rotates in one direction, thus eliminating the effect of the threaded cylinder 62 only being able to rotate in one direction.

[0072] The third step is resetting. When the user stands on the weighing platform 14, the lifting rod 54 drives the output rod 641 to move upward. When the lifting rod 54 drives the output rod 641 to move upward, the back of the spring contactes the teeth on the inner wall of the ratchet groove 644. The two cannot engage with each other, thus forming a relatively independent structure. At this time, although the movable disc 642 is pulled upward by the output rod 641, the movable disc 642 can rotate along the thread on the inner wall of the threaded cylinder 62 without transmitting torque to the output rod 641. Therefore, the movable disc 642 and the output rod 641 rotate relative to each other and are relatively independent, thereby eliminating the torque effect brought by the rise of the output rod 641. This allows for unidirectional rotation control. This forms intermittent control, which can drive the threaded cylinder 62 to rotate when moving downward, and can eliminate the influence on the threaded cylinder 62 by the rotation of the movable disc 642 itself when moving upward, so as to facilitate the next cleaning.

[0073] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A foot-operated automatic disinfection device, characterized in that, The disinfection device includes: A sterilization bottle (41) is placed inside the weighing scale near the foot pedal. The linkage component, which is located inside the scale, is used to convert the force of stepping into the power to press the sterilization bottle (41); The linkage component is set on the pedal (56) of the weighing scale, and the rear end of the pedal (56) is hinged to the lifting rod (54) inside the weighing scale. The lifting rod (54) is connected to a pin (58) on the side facing the disinfection bottle (41), and the pin (58) corresponds to the top of the disinfection bottle (41). When the pedal (56) is under pressure, the pedal (56) drives the lifting rod (54) to move upward; conversely, when the pedal (56) is not stepped on, the pin (58) on the pedal (56) presses the disinfection bottle (41), causing the disinfection bottle (41) to spray disinfectant at the stepping position of the scale.

2. The foot-operated automatic disinfection device as described in claim 1, characterized in that: The pedal (56) is connected to the fixed plate (51) inside the scale via a traction spring (53) at its top, and the traction spring (53) is always in a compressed state; wherein, when the pedal (56) is not stepped on, the lifting rod (54) is driven by the elastic force of the traction spring (53) to drive the pin (58) on it to apply pressure to the sterilization bottle (41).

3. The foot-operated automatic disinfection device as described in claim 1, characterized in that: The scale includes a base (11), and the rear end of the base (11) is connected to an upper and lower extending column (12), and the lifting rod (54) is disposed inside the column (12). The base (11) has a weighing platform (14) embedded in its top, and the weighing platform (14) is located above the pedal (56). When the person to be tested steps on the weighing platform (14), the pedal (56) moves downward under the action of gravity.

4. The foot-operated automatic disinfection device as described in claim 3, characterized in that: The rear end of the pedal (56) is connected to a connecting rod (55), and the lifting rod (54) is hinged to the end of the connecting rod (55) away from the pedal (56). The middle part of the connecting rod (55) is connected to the fixed seat (57) inside the column (12) through a rotating shaft. When the weighing platform (14) is stepped on, the pedal (56) rotates around the pivot between the connecting rod (55) and the fixed seat (57), causing the lifting rod (54) to move upward.

5. The foot-operated automatic disinfection device as described in claim 1, characterized in that: The top of the sterilization bottle (41) is provided with a pressing head (42), and the outlet of the pressing head (42) extends to the front end of the column (12) through the extension tube (43) and corresponds to the top of the weighing platform (14).

6. A foot-operated automatic disinfection device as described in any one of claims 1-5, characterized in that, The disinfection device also includes a cleaning component (3) for cleaning the top of the scale, and the cleaning component (3) is located below the disinfection bottle (41); wherein the cleaning component (3) includes a rotatable cleaning rod (32), and the cleaning rod (32) is driven to rotate by a motor (31) installed inside the column (12), and the stepping position on the top of the scale is within the coverage area of ​​the rotation of the cleaning rod (32).

7. A foot-operated automatic disinfection device as described in any one of claims 1-5, characterized in that, The disinfection device also includes a cleaning component for cleaning the top of the scale, and the cleaning component is located below the disinfection bottle (41). The cleaning component includes a rotatable cleaning rod (32), and the cleaning rod (32) rotates under the drive of the drive structure. The stepping position on the top of the scale is within the coverage area of ​​the rotating cleaning rod (32).

8. The foot-operated automatic disinfection device as described in claim 7, characterized in that: The drive structure includes a transmission rod (64) connected to the lifting rod (54), and the transmission rod (64) is inserted into the threaded cylinder (62); wherein the threaded cylinder (62) is connected to the inner wall of the column (12) through a bearing, and the outer wall of the transmission rod (64) is provided with balls, which correspond to the threaded groove inside the threaded cylinder (62). When the transmission rod (64) moves into the threaded cylinder (62), the threaded cylinder (62) rotates under the squeezing action of the balls on the transmission rod (64); The cleaning rod (32) is connected to the threaded cylinder (62). When the transmission rod (64) rotates, the cleaning rod (32) on it can rotate together with the transmission rod (64).

9. The foot-operated automatic disinfection device as described in claim 8, characterized in that: The cleaning rod (32) has a sliding groove (67) at one end facing the threaded cylinder (62), and the eccentric column (63) at the bottom of the threaded cylinder (62) is inserted into the sliding groove (67); wherein, the cleaning rod (32) is hinged to the column (12) through a rotating shaft, and when the threaded cylinder (62) rotates, it can drive the cleaning rod (32) to rotate around the hinge point between itself and the column (12).

10. The foot-operated automatic disinfection device as described in claim 9, characterized in that: The transmission rod (64) includes a movable disk (642) with ball bearings, and an output rod (641) is connected to the center of the movable disk (642) via a ratchet structure. The output rod (641) is linked to the lifting rod (54). When the lifting rod (54) drives the output rod (641) to move downward, the output rod (641) drives the movable disk (642) to move synchronously via the ratchet structure. Conversely, when the lifting rod (54) drives the output rod (641) to move upward, the movable disk (642) and the output rod (641) rotate relative to each other. The ratchet structure includes an anti-reverse ratchet (643) located at the end of the output lever (641), and the anti-reverse ratchet (643) is located in the ratchet groove (644) at the top of the movable disc (642). The inner wall of the ratchet groove (644) is provided with several teeth, and the teeth correspond to the spring pieces on the outer wall of the anti-reverse ratchet (643).

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