Self-cleaning fingerprint identification intelligent lock

Abstract

This invention belongs to the field of smart lock technology and discloses a self-cleaning fingerprint recognition smart lock, including a fingerprint smart lock body, which is composed of an outer panel, a lock cylinder, and an inner panel. A handle is located at the front of the outer panel of the fingerprint smart lock body, and a fingerprint collection and recognition panel is movable in the front-back direction within the handle's inner cavity. This invention, through the coordinated design of a sliding shell, cleaning mechanism, installation mechanism, and cleaning roller, improves the effectiveness and stability of wiping and cleaning, making it less prone to the accumulation of grease and dirt. It reduces secondary contamination of the fingerprint collection and recognition panel, improves the effectiveness and efficiency of fingerprint recognition, and has high practicality. It avoids the problems of grease and dirt adhering to and accumulating on the wiping surface, the increasingly poor cleaning effect of flexible wiping components, secondary contamination of the fingerprint collection surface, poor stability of wiping and cleaning during long-term use, and the potential reduction in fingerprint recognition effectiveness and efficiency, resulting in low practicality.

Description

Technical Field

[0001] This invention belongs to the field of smart lock technology, specifically a self-cleaning fingerprint recognition smart lock. Background Technology

[0002] With the rapid development of IoT and AI technologies, traditional mechanical door locks can no longer meet the comprehensive needs of modern homes and commercial spaces for security, convenience, and intelligence. Against this backdrop, smart locks have emerged and are gradually becoming one of the core components of smart home security systems.

[0003] Currently, smart locks on the market generally employ multiple authentication methods, such as digital passwords, IC cards, Bluetooth / NFC remote control, and biometric technology. Among these, fingerprint recognition is widely used in mid-to-high-end smart lock products due to its uniqueness, uncopyability, and ease of use. However, in actual use, the fingerprint recognition module's sensing window is easily contaminated with sweat, grease, and dust due to frequent contact, which not only affects recognition sensitivity and speed but may also cause false recognition or rejection, reducing the user experience. Furthermore, residual fingerprints may be exploited by criminals, posing a certain security risk.

[0004] Currently, a Chinese patent discloses a fingerprint lock motherboard and fingerprint lock (publication number: CN219039797U). Under the control of the controller, the drive mechanism can drive the slider to slide along the push cavity. When the slider slides along the push cavity in the first direction, the second cavity is compressed. The airflow in the second cavity is squeezed and discharged from the push hole to the slide groove. The wiping flexible part is pushed by the airflow and slides to the fingerprint collection surface to wipe and clean its surface.

[0005] However, there are still some drawbacks in actual use: during long-term wiping of the fingerprint collection surface, the wiping surface of the flexible wiping component will be covered with and accumulate grease and dirt, and the wiping and cleaning effect of the flexible wiping component will become worse and worse. In fact, the grease and dirt accumulated on its wiping surface will cause secondary pollution to the fingerprint collection surface. The stability of wiping and cleaning is poor during long-term use, which can easily reduce the effect and efficiency of fingerprint recognition and has low practicality. Summary of the Invention

[0006] Technical problems to be solved

[0007] To address the problems mentioned in the background section, this invention provides a self-cleaning fingerprint recognition smart lock, which features convenient operation, excellent wiping effect, and high practicality. Through the coordinated design of the sliding shell, cleaning mechanism, installation mechanism, and cleaning roller, the cleaning effect on the fingerprint recognition panel is improved. It exhibits high stability in long-term use, is less prone to accumulating grease and dirt, reduces secondary contamination of the fingerprint recognition panel, and enhances the effectiveness and efficiency of fingerprint recognition, resulting in high practicality.

[0008] Technical solution

[0009] To achieve the above objectives, the present invention provides the following technical solution: a self-cleaning fingerprint recognition smart lock, comprising a fingerprint smart lock body, the fingerprint smart lock body being composed of an outer panel, a lock cylinder, and an inner panel, a handle disposed at the front of the outer panel of the fingerprint smart lock body, a fingerprint collection and recognition panel movable in the front-back direction within the handle cavity, a mounting mechanism disposed on the back of the fingerprint collection and recognition panel, a sliding shell sliding up and down at the front of the mounting mechanism, a cleaning roller rotatably disposed within the sliding shell for cleaning the surface of the fingerprint collection and recognition panel, and a cleaning mechanism disposed within the sliding shell;

[0010] The cleaning mechanism maintains contact with the outer peripheral surface of the cleaning roller and is used to scrape off the grease and dirt adhering to its surface during the rotation of the cleaning roller.

[0011] The handle has a pressing channel at the front for the finger to contact the fingerprint recognition panel, the slide shell has an opening at the rear, and the rear of the cleaning roller extends beyond the opening. The outer periphery of the cleaning roller is covered with cleaning cotton.

[0012] In the above technical solution, preferably, the installation mechanism includes a vertical shell movable in the front-to-back direction in the inner cavity of the handle, a drive mechanism disposed in the vertical shell for driving the sliding shell to move up and down, a transmission mechanism disposed at the front of the vertical shell, an electromagnetic pin vertically fixed to the rear side wall of the vertical shell, a slot fixed in the rear part of the inner cavity of the handle and adapted to the head of the electromagnetic pin, a touch sensor disposed at the rear of the electromagnetic pin, and an electronic control mechanism disposed on the lower side of the inner cavity of the handle for controlling the operation of the drive mechanism and the electromagnetic pin.

[0013] The front part of the vertical shell is fixedly connected to the rear part of the fingerprint collection and recognition panel, the touch end of the touch sensor is movably connected to the rear part of the inner cavity of the handle, and the touch sensor is electrically connected to the electronic control mechanism. When the drive mechanism drives the sliding shell to move up and down, the cleaning roller rotates through the transmission mechanism.

[0014] In the above technical solution, preferably, the transmission mechanism includes two connecting plates symmetrically fixedly installed on the upper and lower sides of the front of the vertical shell, two vertical rods symmetrically fixed between the two connecting plates, a first rack vertically fixed to the rear of the vertical rods, and a first gear fixedly sleeved on the shaft of the cleaning roller; the first gear meshes with the first rack.

[0015] In the above technical solution, preferably, the cleaning mechanism includes an upper scraper and a lower scraper distributed vertically at the front of the inner cavity of the sliding shell, a scraper block that moves back and forth between the upper scraper and the lower scraper, a material guide channel disposed at the front of the inner cavity of the sliding shell that penetrates the upper scraper and the lower scraper, a waste bin fixed at the bottom of the inner cavity of the handle, two sewage discharge hoses for connecting the bottom of the inner cavity of the sliding shell to the inner cavity of the waste bin, and a disinfection mechanism disposed on the scraper block for sterilizing the cleaning roller;

[0016] The scraping surfaces of the upper scraper, lower scraper, and scraper block are in contact with and pressed against the outer circumferential surface of the cleaning roller. The left and right sides of the front part of the inner cavity of the sliding shell are movably mounted with reciprocating screws for driving the scraper block to move left and right through bearings. The left and right ends of the reciprocating screws are respectively fixedly sleeved with second gears. The front part of the vertical rod is vertically fixed with a second rack, and the second gear meshes with the second rack.

[0017] In the above technical solution, preferably, the disinfection mechanism includes a pressure chamber opened laterally in the middle of the scraper, a sealing block disposed in the pressure chamber, connecting rods symmetrically fixed on the left and right sides of the sealing block, a diversion chamber opened laterally at the rear of the scraper, a set of pressure nozzles equidistantly disposed on the scraping surface of the scraper for spraying disinfectant onto the outer peripheral surface of the cleaning roller, and a liquid storage tank fixed in the upper part of the inner cavity of the handle.

[0018] The scraper has a set of scraper blades evenly spaced on its scraping surface for scraping off grease and dirt from the outer circumference of the cleaning roller. The connecting rod extends to the outside of the inner cavity of the pressure chamber and is fixedly connected to the inner cavity of the sliding shell. The inner cavity of the pressure chamber is used to introduce disinfectant into the diversion chamber through a one-way outlet valve. The bottom of the storage tank is symmetrically connected to two infusion hoses, which are connected to the bottom of the inner cavity of the pressure chamber. The outlet port of the infusion hose is provided with a one-way inlet valve for introducing disinfectant into the pressure chamber.

[0019] In the above technical solution, preferably, the driving mechanism includes a bracket that slides up and down inside the vertical shell, a screw that is movably mounted inside the vertical shell via bearings for driving the bracket to slide, and a drive motor fixed to the top of the vertical shell for driving the screw to rotate; the bracket penetrates to the front of the vertical shell and is fixedly connected to the left and right sides of the rear sidewall of the sliding shell.

[0020] In the above technical solution, preferably, the electronic control mechanism includes an electronic control box disposed on one side of the bottom of the handle cavity, a PLC electronic control board disposed in the electronic control box, and a battery disposed in the electronic control box for supplying power to the electromagnetic pin, the touch sensor, the drive motor and the PLC electronic control board.

[0021] In the above technical solution, preferably, two guide rods are symmetrically fixedly installed on the left and right sides of the handle cavity, the left and right side walls of the vertical shell are slidably connected to the guide rods through connecting blocks, and a compression spring is movably sleeved on the rear part of the guide rod. The front and rear ends of the compression spring are fixedly connected to the rear side wall of the connecting block and the rear part of the handle cavity, respectively.

[0022] In the above technical solution, preferably, the bottom of the waste bin is provided with a drain hole, the bottom surface of the handle is provided with a lower plug hole adapted to the drain hole, and a drain plug block detachably connected to the drain hole is provided in the lower plug hole.

[0023] In the above technical solution, preferably, the top surface of the liquid storage tank is provided with an injection hole, the top surface of the handle is provided with an upper plug hole adapted to the injection hole, and an injection plug block detachably connected to the injection hole is provided in the upper plug hole.

[0024] Beneficial effects

[0025] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0026] 1. This invention, through the coordinated design of the sliding shell, cleaning mechanism, mounting mechanism, and cleaning roller, utilizes the rotation of the cleaning roller to remove sweat, grease, and other dirt adhering to its surface using the upper scraper, lower scraper, and scraper block. Furthermore, during each up-and-down reciprocating movement, the interaction between the second gear and the second rack causes the reciprocating screw to rotate, driving the scraper block to reciprocate along the length of the cleaning roller, further removing grease and dirt from its surface. This improves the cleaning effect on fingerprint recognition panels and enhances long-term cleaning efficiency. The cleaning roller exhibits high stability, and its outer circumference is less prone to accumulating grease and dirt, reducing secondary contamination of the fingerprint recognition panel and improving the effectiveness and efficiency of fingerprint recognition. It is highly practical, solving the problems of existing technologies where the flexible wiping component accumulates grease and dirt on the fingerprint recognition surface over long-term wiping, leading to increasingly poor cleaning performance and even secondary contamination of the fingerprint recognition surface. This results in poor cleaning stability during long-term use, reducing the effectiveness and efficiency of fingerprint recognition and limiting its practicality.

[0027] 2. This invention, through the coordinated design of an upper scraper, lower scraper, scraper block, and disinfection mechanism, allows the scraper block to reciprocate along the length of the cleaning roller, scraping away grease and dirt adhering to the roller surface. Simultaneously, the reciprocating movement of the scraper block moves the pressure chamber, causing continuous pressure changes on both sides of the pressure chamber under the action of the sealing block. This allows disinfectant from the storage tank to be continuously drawn into the pressure chamber through the infusion hose and one-way inlet valve, and then introduced into the diversion chamber through the one-way outlet valve. The disinfectant is then sprayed onto the cleaning cotton on the outer circumference of the cleaning roller through the pressure nozzle, thus disinfecting the cleaning cotton. The cleaning roller drives the cleaning cotton to rotate, and during the process of mutual squeezing with the upper scraper, lower scraper, and scraper block, most of the disinfectant absorbed by the cleaning cotton is squeezed out, and some of the grease and dirt attached to the gaps in the cleaning cotton is removed. This helps maintain the cleaning effect of the cleaning roller on the surface of the fingerprint recognition panel. At the same time, when the cleaning roller rotates, it can also drive the cleaning cotton to wipe a small amount of disinfectant on the surface of the fingerprint recognition panel, which can disinfect and sterilize the surface of the fingerprint recognition panel, improve hygiene and safety, and the small amount of disinfectant wiped on the surface of the fingerprint recognition panel can evaporate quickly, which is unlikely to affect the fingerprint recognition effect. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of the present invention;

[0029] Figure 2 This is a partial cross-sectional view of the handle, fingerprint recognition panel, mounting mechanism, and sliding shell of the present invention.

[0030] Figure 3 This is a schematic diagram of the mounting mechanism and sliding shell of the present invention;

[0031] Figure 4 This is a schematic diagram of the structure of the sliding shell, cleaning roller, vertical shell, drive mechanism, electromagnetic pin, slot, and touch sensor of the present invention.

[0032] Figure 5 This is a partial structural diagram of the sliding shell, cleaning roller, and transmission mechanism of the present invention;

[0033] Figure 6 This is a partial cross-sectional view of the sliding shell, upper scraper, lower scraper, scraper block, reciprocating screw, and cleaning roller of the present invention.

[0034] Figure 7 This is a schematic diagram of the structure of the upper scraper, the material guide channel, the lower scraper, and the scraper block of the present invention;

[0035] Figure 8 This is a schematic diagram of the right-side cross-sectional structure of the upper scraper, the material guide channel, and the lower scraper of the present invention;

[0036] Figure 9This is a partial top sectional view of the scraping block and disinfection mechanism of the present invention;

[0037] Figure 10 This is a schematic diagram of the structure of the sliding shell, scraper, liquid storage tank, infusion hose, sewage hose, and waste bin of the present invention;

[0038] Figure 11 This is a rear view structural diagram of the sliding shell, scraper, infusion hose, and sewage hose of the present invention.

[0039] In the diagram: 1. Fingerprint smart lock body; 2. Handle; 3. Fingerprint acquisition and recognition panel; 4. Installation mechanism; 41. Vertical shell; 42. Electromagnetic pin; 43. Card slot; 44. Touch sensor; 5. Sliding shell; 6. Cleaning roller; 7. Cleaning mechanism; 71. Upper scraper; 72. Lower scraper; 73. Scraper block; 74. Waste bin; 75. Drain hose; 76. Reciprocating screw; 77. Second gear; 78. Second rack; 79. Material guide channel; 8. Drive mechanism; 81. Bracket; 82. Screw; 83. Drive motor; 9. Transmission mechanism; 91. Connecting plate; 92. Vertical rod; 93. First rack; 94. First gear; 10. Electrical control mechanism; 11. Disinfection mechanism; 111. Pressure chamber; 112. Sealing block; 113. Connecting rod; 114. Diversion chamber; 115. Pressure nozzle; 116. Liquid storage tank; 117. Infusion hose. Detailed Implementation

[0040] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] like Figures 1 to 11 As shown, the present invention provides a self-cleaning fingerprint recognition smart lock, including a fingerprint smart lock body 1, which is composed of an outer panel, a lock cylinder, and an inner panel. The fingerprint smart lock body 1 is existing technology, and its structure and principle will not be described in detail here. A handle 2 is provided at the front of the outer panel of the fingerprint smart lock body 1. A fingerprint collection and recognition panel 3 is movable in the front and back direction in the inner cavity of the handle 2. A mounting mechanism 4 is provided on the back of the fingerprint collection and recognition panel 3. A sliding shell 5 slides up and down at the front of the mounting mechanism 4. A cleaning roller 6 is rotatably provided in the sliding shell 5 for cleaning the surface of the fingerprint collection and recognition panel 3. A cleaning mechanism 7 is provided in the sliding shell 5.

[0042] The cleaning mechanism 7 keeps in contact with the outer peripheral surface of the cleaning roller 6 and is used to scrape off the grease and dirt attached to the surface of the cleaning roller 6 during its rotation.

[0043] The handle 2 has a pressing channel at the front for the finger to contact the fingerprint recognition panel 3, the slide shell 5 has an opening at the rear, and the cleaning roller 6 extends to the outside of the opening. The outer periphery of the cleaning roller 6 is covered with cleaning cotton.

[0044] In use, initially, the user inserts their finger into the pressing channel and contacts the fingerprint recognition panel 3, pressing the fingerprint recognition panel 3. This, along with the mounting mechanism 4 and the sliding shell 5, moves the cleaning roller 6 towards the rear of the handle 2's inner cavity. When the mounting mechanism 4 reaches the rear of the handle 2's inner cavity, it automatically locks in place. Subsequently, the mounting mechanism 4 drives the sliding shell 5 to move the cleaning roller 6 back and forth once in the up-down direction. Simultaneously, the cleaning roller 6 rotates around its own axis during movement to wipe and clean the surface of the fingerprint recognition panel 3. During the rotation of the cleaning roller 6, the cleaning mechanism 7 scrapes off the grease and dirt adhering to its surface, effectively cleaning the cleaning roller 6 and improving the wiping and cleaning effect of the fingerprint recognition panel 3. The cleaning stability is high during long-term use, and the outer circumference of the cleaning roller 6 is not prone to accumulating grease and dirt, reducing secondary contamination of the fingerprint recognition panel 3 and improving the fingerprint recognition effect and efficiency, making it highly practical.

[0045] like Figure 4 As shown, the mounting mechanism 4 includes a vertical shell 41 that is movable in the front-back direction in the inner cavity of the handle 2, a drive mechanism 8 disposed in the vertical shell 41 for driving the sliding shell 5 to move up and down, a transmission mechanism 9 disposed at the front of the vertical shell 41, an electromagnetic pin 42 vertically fixed to the rear side wall of the vertical shell 41 (the electromagnetic pin 42 is existing technology, and its structure and principle will not be described in detail here), a slot 43 fixed at the rear of the inner cavity of the handle 2 and adapted to the pin head of the electromagnetic pin 42, a touch sensor 44 disposed at the rear of the electromagnetic pin 42, and an electronic control mechanism 10 disposed on the lower side of the inner cavity of the handle 2 for controlling the operation of the drive mechanism 8 and the electromagnetic pin 42.

[0046] The front of the vertical shell 41 is fixedly connected to the rear of the fingerprint collection and recognition panel 3. The touch end of the touch sensor 44 is movably connected to the rear of the inner cavity of the handle 2. The touch sensor 44 is electrically connected to the electronic control mechanism 10. When the drive mechanism 8 drives the sliding shell 5 to move up and down, the cleaning roller 6 rotates through the transmission mechanism 9. Two guide rods are symmetrically fixedly installed on the left and right sides of the inner cavity of the handle 2. The left and right side walls of the vertical shell 41 are slidably connected to the guide rods through connecting blocks. The rear of the guide rod is movably sleeved with a compression spring. The front and rear ends of the compression spring are fixedly connected to the rear side wall of the connecting block and the rear of the inner cavity of the handle 2, respectively.

[0047] When in use, when the user presses the fingerprint recognition panel 3 with their finger, the vertical shell 41 moves to the rear of the inner cavity of the handle 2. The vertical shell 41 drives the head of the electromagnetic pin 42 to insert into the slot 43, which can lock the position of the vertical shell 41. At this time, the electromagnetic pin 42 drives the touch sensor 44 to contact the rear of the inner cavity of the handle 2. The touch sensor 44 sends a start signal to the electronic control mechanism 10. The electronic control mechanism 10 controls the drive mechanism 8 to operate, driving the sliding shell 5 to move the cleaning roller 6 back and forth once in the up and down direction. At the same time, the cleaning roller 6 rotates under the action of the transmission mechanism 9 during the movement to wipe and clean the surface grease and dirt of the fingerprint recognition panel 3.

[0048] When the drive mechanism 8 operates, the drive slide 5 drives the cleaning roller 6 to move back and forth in the up and down direction once to wipe and clean the surface grease and dirt of the fingerprint collection and recognition panel 3. Then, the electronic control mechanism 10 controls the electromagnetic pin 42 to operate once, so that the pin head of the electromagnetic pin 42 separates from the slot 43. Then, under the elastic force of the compression spring, the vertical shell 41 drives the fingerprint collection and recognition panel 3 to move towards the front of the inner cavity of the handle 2 to reset.

[0049] like Figure 5 As shown, the transmission mechanism 9 includes two connecting plates 91 symmetrically fixedly installed on the upper and lower sides of the front of the vertical shell 41, two vertical rods 92 symmetrically fixed between the two connecting plates 91, a first rack 93 vertically fixed to the rear of the vertical rods 92, and a first gear 94 fixedly sleeved on the rotating shaft of the cleaning roller 6; the first gear 94 meshes with the first rack 93.

[0050] When in use, when the drive mechanism 8 is in operation, the drive slide 5 drives the cleaning roller 6 to move back and forth in the up and down direction once. When the cleaning roller 6 moves, it drives the first gear 94 to move. Under the interaction of the first gear 94 and the first rack 93, the cleaning roller 6 can rotate during the up and down movement to wipe and clean the surface grease and dirt of the fingerprint collection and recognition panel 3.

[0051] like Figure 6 , Figure 7 , Figure 8 As shown, the cleaning mechanism 7 includes an upper scraper 71 and a lower scraper 72 distributed vertically at the front of the inner cavity of the sliding shell 5, a scraper block 73 that moves back and forth between the upper scraper 71 and the lower scraper 72, a guide channel 79 set at the front of the inner cavity of the sliding shell 5 that penetrates the upper scraper 71 and the lower scraper 72, a waste box 74 fixed at the bottom of the inner cavity of the handle 2, two sewage hoses 75 for connecting the bottom of the inner cavity of the sliding shell 5 with the inner cavity of the waste box 74, and a disinfection mechanism 11 set on the scraper block 73 for sterilizing the cleaning roller 6.

[0052] Among them, the scraping surfaces of the upper scraper 71, lower scraper 72, and scraper block 73 are in contact and squeezed with the outer peripheral surface of the cleaning roller 6, respectively. The left and right sides of the front part of the inner cavity of the sliding shell 5 are movably installed with reciprocating screws 76 for driving the scraper block 73 to move left and right through bearings. The left and right ends of the reciprocating screws 76 are respectively fixedly sleeved with second gears 77. The front part of the vertical rod 92 is vertically fixed with a second rack 78, and the second gear 77 meshes with the second rack 78. The bottom of the waste bin 74 is provided with a sewage discharge hole, and the bottom surface of the handle 2 is provided with a lower plug hole adapted to the sewage discharge hole. A sewage plug block that is detachably connected to the sewage discharge hole is provided in the lower plug hole.

[0053] During use, as the cleaning roller 6 rotates, the sweat, grease, and other dirt adhering to its surface can be scraped and cleaned by the upper scraper 71, lower scraper 72, and scraper block 73. During each up-and-down reciprocating movement, the interaction between the second gear 77 and the second rack 78 causes the reciprocating screw 76 to rotate and drive the scraper block 73 to reciprocate along the length of the cleaning roller 6, scraping and cleaning the grease and dirt adhering to the surface of the cleaning roller 6. The grease and dirt scraped by the upper scraper 71, lower scraper 72, and scraper block 73 can fall into the bottom of the inner cavity of the sliding shell 5 through the guide channel 79, and then be collected into the waste bin 74 through the drain hose 75. The user can discharge the waste liquid in the waste bin 74 through the drain hole by removing the drain plug.

[0054] like Figure 9 , Figure 10 , Figure 11 As shown, the disinfection mechanism 11 includes a pressure chamber 111 that is laterally opened in the middle of the scraper 73, a sealing block 112 disposed in the pressure chamber 111, a connecting rod 113 symmetrically fixed on the left and right sides of the sealing block 112, a diversion chamber 114 that is laterally opened in the rear of the scraper 73, a set of pressure nozzles 115 that are equidistantly disposed on the scraping surface of the scraper 73 for spraying disinfectant onto the outer peripheral surface of the cleaning roller 6, and a liquid storage tank 116 fixed in the upper part of the inner cavity of the handle 2.

[0055] The scraper 73 has a set of scraper blades equidistantly arranged on its scraping surface for scraping off grease and dirt from the outer circumference of the cleaning roller 6. The connecting rod 113 penetrates to the outside of the inner cavity of the pressure chamber 111 and is fixedly connected to the inner cavity of the sliding shell 5. The inner cavity of the pressure chamber 111 is used to introduce disinfectant into the diversion chamber 114 through a one-way outlet valve. The bottom of the storage tank 116 is symmetrically connected to two infusion hoses 117. The infusion hoses 117 are connected to the bottom of the inner cavity of the pressure chamber 111, and the outlet port of the infusion hoses 117 is provided with a one-way inlet valve for introducing disinfectant into the pressure chamber 111. The top surface of the storage tank 116 is provided with an injection hole, and the top surface of the handle 2 is provided with an upper plug hole adapted to the injection hole. An injection plug block that is detachably connected to the injection hole is provided in the upper plug hole.

[0056] During use, as the scraper 73 moves back and forth along the length of the cleaning roller 6 to scrape away the grease and dirt adhering to the surface of the cleaning roller 6, the sealing block 112 remains fixed in position via the connecting rod 113. The reciprocating movement of the scraper 73 drives the pressure chamber 111 to move. Under the action of the sealing block 112, the pressure inside the left and right sides of the pressure chamber 111 continuously changes. When the volume of one side of the pressure chamber 111 increases, a negative pressure is generated inside, which draws the disinfectant from the storage tank 116 through the infusion hose 117 and the one-way inlet valve. When the volume of one side of the pressure chamber 111 decreases, a positive pressure is generated inside, which allows the disinfectant to be introduced into the diversion chamber 114 through the one-way outlet valve. The disinfectant is then sprayed onto the cleaning cotton on the outer periphery of the cleaning roller 6 through the pressure nozzle 115 for absorption, thus disinfecting and sterilizing the cleaning cotton on the outer periphery of the cleaning roller 6.

[0057] Meanwhile, as the cleaning roller 6 drives the cleaning cotton to rotate and is squeezed against the upper scraper 71, lower scraper 72, and scraper block 73, most of the disinfectant absorbed by the cleaning cotton is squeezed out, and some of the grease and dirt attached to the gaps in the cleaning cotton is removed. This helps maintain the cleaning effect of the cleaning roller 6 on the surface of the fingerprint recognition panel 3. At the same time, when the cleaning roller 6 rotates, it can drive the cleaning cotton to wipe a small amount of disinfectant on the surface of the fingerprint recognition panel 3, which can disinfect and sterilize the surface of the fingerprint recognition panel 3, improve hygiene and safety, and the small amount of disinfectant wiped on the surface of the fingerprint recognition panel 3 can evaporate quickly, so it is not likely to affect the fingerprint recognition effect.

[0058] like Figure 4 As shown, the drive mechanism 8 includes a bracket 81 that slides up and down inside the vertical shell 41, a screw 82 that is movably mounted inside the vertical shell 41 via bearings for driving the bracket 81 to slide, and a drive motor 83 that is fixed to the top of the vertical shell 41 for driving the screw 82 to rotate. The bracket 81 penetrates to the front of the vertical shell 41 and is fixedly connected to the left and right sides of the rear side wall of the sliding shell 5. The electrical control mechanism 10 includes an electrical control box located at the bottom of the inner cavity of the handle 2, a PLC electrical control board located inside the electrical control box, and a battery located inside the electrical control box for supplying power to the electromagnetic pin 42, the touch sensor 44, the drive motor 83, and the PLC electrical control board.

[0059] When in use, after the touch sensor 44 sends a start signal to the PLC control board in the electronic control mechanism 10, the PLC control board controls the drive motor 83 to operate in the forward direction and then in the reverse direction. The drive motor 83 can drive the bracket 81 through the screw 82 to drive the sliding shell 5 and the cleaning roller 6 to move up and down once to clean the surface of the fingerprint collection and recognition panel 3.

[0060] Working principle and usage process of this invention:

[0061] In use, initially, the user inserts their finger into the pressing channel and contacts the fingerprint collection and recognition panel 3. When the finger presses the fingerprint collection and recognition panel 3, it moves the vertical shell 41 to the rear of the handle 2's inner cavity. The vertical shell 41 then drives the head of the electromagnetic pin 42 to insert into the slot 43, locking the position of the vertical shell 41. At this time, the electromagnetic pin 42 drives the touch sensor 44 to contact the rear of the handle 2's inner cavity. The touch sensor 44 sends a start signal to the electronic control mechanism 10. The electronic control mechanism 10 controls the drive motor 83 to operate in the forward direction and then in the reverse direction once. The drive motor 83 can drive the bracket 81 through the screw 82 to drive the sliding shell 5 and the cleaning roller 6 to move up and down once. When the cleaning roller 6 moves, it drives the first gear 94 to move. The interaction between the first gear 94 and the first rack 93 causes the cleaning roller 6 to rotate during its up-and-down movement to wipe away grease and dirt from the surface of the fingerprint recognition panel 3. During the rotation of the cleaning roller 6, sweat stains, grease, and other dirt adhering to its surface can be scraped away by the upper scraper 71, lower scraper 72, and scraper block 73. Furthermore, during one up-and-down reciprocating movement, the interaction between the second gear 77 and the second rack 78 causes the reciprocating screw 76 to rotate and drive the scraper block 73 to reciprocate along the length of the cleaning roller 6, scraping away grease and dirt adhering to the surface of the cleaning roller 6. Simultaneously, the sealing block 112 is fixed in position via the connecting rod 113, and the scraper 73 reciprocates, causing the pressure chamber 111 to move. Under the action of the sealing block 112, the pressure inside the left and right sides of the pressure chamber 111 continuously changes. When the volume on one side of the pressure chamber 111 increases, a negative pressure is generated inside, which draws the disinfectant from the storage tank 116 through the infusion hose 117 and the one-way inlet valve. When the volume on one side of the pressure chamber 111 decreases, a positive pressure is generated inside, which allows the disinfectant to be introduced into the diversion chamber 114 through the one-way outlet valve, so that the disinfectant is sprayed onto the cleaning cotton on the outer circumference of the cleaning roller 6 through the pressure nozzle 115 for absorption, thus cleaning the cleaning cotton on the outer circumference of the cleaning roller 6. During the disinfection and sterilization process, the cleaning roller 6 drives the cleaning cotton to rotate and squeeze against the upper scraper 71, lower scraper 72, and scraper block 73. This process allows most of the disinfectant absorbed by the cleaning cotton to be squeezed out and removes some of the grease and dirt attached to the gaps in the cleaning cotton. This helps maintain the cleaning effect of the cleaning roller 6 on the surface of the fingerprint recognition panel 3. At the same time, when the cleaning roller 6 rotates, it can drive the cleaning cotton to wipe a small amount of disinfectant on the surface of the fingerprint recognition panel 3, which can disinfect and sterilize the surface of the fingerprint recognition panel 3, improve hygiene and safety, and the small amount of disinfectant wiped on the surface of the fingerprint recognition panel 3 can evaporate quickly, so it is not likely to affect the fingerprint recognition effect.

[0062] The grease, dirt and disinfectant waste liquid scraped off by the upper scraper 71, the lower scraper 72 and the scraper block 73 can fall into the bottom of the inner cavity of the sliding shell 5 through the guide channel 79, and then be collected into the waste bin 74 through the drain hose 75. The user can discharge the waste liquid in the waste bin 74 through the drain hole by removing the drain plug.

[0063] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0064] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A self-cleaning fingerprint recognition smart lock, characterized in that, The system includes a fingerprint smart lock body (1), which is composed of an outer panel, a lock cylinder, and an inner panel. A handle (2) is provided at the front of the outer panel of the fingerprint smart lock body (1). A fingerprint collection and recognition panel (3) is movable in the front-back direction in the inner cavity of the handle (2). A mounting mechanism (4) is provided on the back of the fingerprint collection and recognition panel (3). A sliding shell (5) slides up and down at the front of the mounting mechanism (4). A cleaning roller (6) is rotatably provided in the sliding shell (5) for cleaning the surface of the fingerprint collection and recognition panel (3). A cleaning mechanism (7) is provided in the sliding shell (5). The cleaning mechanism (7) keeps in contact with the outer peripheral surface of the cleaning roller (6) and is used to scrape off the grease and dirt attached to the surface of the cleaning roller (6) during its rotation. The handle (2) has a pressing channel at the front for the finger to contact the fingerprint collection and recognition panel (3), the sliding shell (5) has an opening at the rear, and the rear of the cleaning roller (6) extends to the outside of the opening. The outer periphery of the cleaning roller (6) is covered with cleaning cotton.

2. The self-cleaning fingerprint recognition smart lock according to claim 1, characterized in that: The mounting mechanism (4) includes a vertical shell (41) movable in the front-back direction in the inner cavity of the handle (2), a drive mechanism (8) disposed in the vertical shell (41) for driving the sliding shell (5) to move up and down, a transmission mechanism (9) disposed in the front of the vertical shell (41), an electromagnetic pin (42) vertically fixed to the rear side wall of the vertical shell (41), a slot (43) fixed in the rear of the inner cavity of the handle (2) and adapted to the pin head of the electromagnetic pin (42), a touch sensor (44) disposed in the rear of the electromagnetic pin (42), and an electronic control mechanism (10) disposed in the lower side of the inner cavity of the handle (2) for controlling the operation of the drive mechanism (8) and the electromagnetic pin (42). The front part of the vertical shell (41) is fixedly connected to the rear part of the fingerprint collection and recognition panel (3), the touch end of the touch sensor (44) is movably connected to the rear part of the inner cavity of the handle (2), and the touch sensor (44) is electrically connected to the electronic control mechanism (10). When the drive mechanism (8) drives the sliding shell (5) to move up and down, the cleaning roller (6) rotates through the transmission mechanism (9).

3. The self-cleaning fingerprint recognition smart lock according to claim 2, characterized in that: The transmission mechanism (9) includes two connecting plates (91) symmetrically fixedly installed on the upper and lower sides of the front of the vertical shell (41), two vertical rods (92) symmetrically fixed between the two connecting plates (91), a first rack (93) vertically fixed to the rear of the vertical rods (92), and a first gear (94) fixedly sleeved on the rotating shaft of the cleaning roller (6); the first gear (94) meshes with the first rack (93).

4. A self-cleaning fingerprint recognition smart lock according to claim 3, characterized in that: The cleaning mechanism (7) includes an upper scraper (71) and a lower scraper (72) distributed vertically at the front of the inner cavity of the sliding shell (5), a scraper block (73) that moves back and forth between the upper scraper (71) and the lower scraper (72), a material guide channel (79) that penetrates the upper scraper (71) and the lower scraper (72) at the front of the inner cavity of the sliding shell (5), a waste bin (74) fixed at the bottom of the inner cavity of the handle (2), two sewage hoses (75) for connecting the bottom of the inner cavity of the sliding shell (5) with the inner cavity of the waste bin (74), and a disinfection mechanism (11) set on the scraper block (73) for sterilizing the cleaning roller (6). Among them, the scraping surfaces of the upper scraper (71), lower scraper (72), and scraper block (73) are in contact with and squeezed against the outer peripheral surface of the cleaning roller (6). The left and right sides of the front part of the inner cavity of the sliding shell (5) are movably installed with bearings to drive the scraper block (73) to move left and right. The left and right ends of the reciprocating screw (76) are respectively fixedly sleeved with second gears (77). The front part of the vertical rod (92) is vertically fixed with a second rack (78), and the second gear (77) meshes with the second rack (78).

5. A self-cleaning fingerprint recognition smart lock according to claim 4, characterized in that: The disinfection mechanism (11) includes a pressure chamber (111) opened laterally in the middle of the scraper (73), a sealing block (112) disposed in the pressure chamber (111), connecting rods (113) symmetrically fixed on the left and right sides of the sealing block (112), a diversion chamber (114) opened laterally at the rear of the scraper (73), a set of pressure nozzles (115) equidistantly disposed on the scraping surface of the scraper (73) for spraying disinfectant onto the outer circumference of the cleaning roller (6), and a liquid storage tank (116) fixed in the upper part of the inner cavity of the handle (2). The scraper (73) has a set of scraper blades equidistantly arranged on its scraping surface for scraping off grease and dirt from the outer circumference of the cleaning roller (6). The connecting rod (113) penetrates to the outside of the inner cavity of the pressure chamber (111) and is fixedly connected to the inner cavity of the sliding shell (5). The inner cavity of the pressure chamber (111) is used to introduce disinfectant into the diversion chamber (114) through a one-way outlet valve. The bottom of the storage tank (116) is symmetrically connected to two infusion hoses (117). The infusion hoses (117) are connected to the bottom of the inner cavity of the pressure chamber (111), and the outlet port of the infusion hoses (117) is provided with a one-way inlet valve for introducing disinfectant into the pressure chamber (111).

6. A self-cleaning fingerprint recognition smart lock according to claim 5, characterized in that: The drive mechanism (8) includes a bracket (81) that slides up and down inside the vertical shell (41), a screw (82) that is movably mounted inside the vertical shell (41) via bearings for driving the bracket (81) to slide, and a drive motor (83) fixed to the top of the vertical shell (41) for driving the screw (82) to rotate; the bracket (81) penetrates to the front of the vertical shell (41) and is fixedly connected to the left and right sides of the rear sidewall of the sliding shell (5).

7. A self-cleaning fingerprint recognition smart lock according to claim 6, characterized in that: The electrical control mechanism (10) includes an electrical control box located on one side of the bottom of the inner cavity of the handle (2), a PLC electrical control board located in the electrical control box, and a battery located in the electrical control box for supplying power to the electromagnetic pin (42), the touch sensor (44), the drive motor (83), and the PLC electrical control board.

8. A self-cleaning fingerprint recognition smart lock according to claim 2, characterized in that: Two guide rods are symmetrically fixedly installed on the left and right sides of the inner cavity of the handle (2). The left and right side walls of the vertical shell (41) are slidably connected to the guide rods through connecting blocks. A compression spring is movably sleeved on the rear part of the guide rod. The front and rear ends of the compression spring are fixedly connected to the rear side wall of the connecting block and the rear part of the inner cavity of the handle (2), respectively.

9. A self-cleaning fingerprint recognition smart lock according to claim 3, characterized in that: The bottom of the waste bin (74) is provided with a drain hole, and the bottom surface of the handle (2) is provided with a lower plug hole adapted to the drain hole. A drain plug block that is detachably connected to the drain hole is provided in the lower plug hole.

10. A self-cleaning fingerprint recognition smart lock according to claim 4, characterized in that: The top surface of the liquid storage tank (116) is provided with an injection hole, and the top surface of the handle (2) is provided with an upper plug hole adapted to the injection hole. An injection plug block that is detachably connected to the injection hole is provided in the upper plug hole.

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