CN111927210A

CN111927210A - Fingerprint lock with finger cleaning function

Info

Publication number: CN111927210A
Application number: CN202010807250.1A
Authority: CN
Inventors: 李永杰; 黄倩
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-08-12
Filing date: 2020-08-12
Publication date: 2020-11-13

Abstract

The invention discloses a fingerprint lock with a finger cleaning function, which comprises a fingerprint lock body and a lock handle, wherein a touch pad of the fingerprint lock body is arranged on the left side of the lock handle, a cleaning groove and a cylindrical cavity are sequentially arranged in the lock handle from left to right, a piston is arranged in the cylindrical cavity, the cylindrical cavity is divided into a first cavity and a second cavity by the piston, an elastic plate is arranged on the front side of the touch pad, a water collecting groove is arranged on the front side of the elastic plate, a water squeezing net is fixed on the inner wall of the water collecting groove, a water absorbing sponge is bonded on the outer wall of the water squeezing net, a piezoelectric ceramic plate is arranged on the back side of the touch pad, a connecting rod extending into the cleaning groove is fixed on the left side of the piston, the tail end of the connecting rod is fixed with the elastic plate, and the right side of the piston is elastically connected. The finger cleaning device is reasonable in structure, and can quickly clean fingers before each recognition, so that the recognition rate is improved.

Description

Fingerprint lock with finger cleaning function

Technical Field

The invention relates to the technical field of fingerprint locks, in particular to a fingerprint lock with a finger cleaning function.

Background

The fingerprint lock is an intelligent lock, and is a perfect crystal of computer information technology, electronic technology, mechanical technology and modern hardware technology. The characteristics of fingerprints become the most important evidence for identity identification and are widely applied to the fields of public security criminal investigation and judicial law.

However, when the existing fingerprint lock is used daily, particularly in an office place, the existing fingerprint lock is frequently accessed, and enters a company after being washed, the problem that the fingerprint lock cannot be identified due to residual water on fingers often occurs, and the subsequent identification and use are influenced due to the residual water on the touch pad.

Disclosure of Invention

The invention aims to solve the defects in the prior art, and provides a fingerprint lock with a finger cleaning function, which can quickly clean fingers before each recognition and improve the recognition rate.

In order to achieve the purpose, the invention adopts the following technical scheme:

a fingerprint lock with a finger cleaning function comprises a fingerprint lock body and a lock handle, wherein a touch pad of the fingerprint lock body is arranged on the left side of the lock handle, a cleaning groove and a cylindrical cavity are sequentially arranged in the lock handle from left to right, a piston is arranged in the cylindrical cavity and divides the cylindrical cavity into a first cavity and a second cavity, an elastic plate is arranged on the front side of the touch pad, a water collecting groove is arranged on the front side of the elastic plate, a water squeezing net is fixed on the inner wall of the water collecting groove, a water absorbing sponge is bonded on the outer wall of the water squeezing net, a piezoelectric ceramic plate is arranged on the back side of the touch pad, a connecting rod extending into the cleaning groove is fixed on the left side of the piston, the tail end of the connecting rod is fixed with the elastic plate, the right side of the piston is elastically connected with the inner wall of the cylindrical cavity through a spring, the two ends of the spring are electrically connected with the output end of the piezoelectric ceramic plate, the water suction pipe and the water outlet pipe are internally provided with one-way valves, the tail end of the water suction pipe is communicated with the bottom of the water collecting tank, the tail end of the water outlet pipe is communicated with the outer wall of the lock handle, the second cavity is connected with an air pipe, the front inner wall of the cleaning tank is provided with a groove, a folding air bag connected with the air pipe is arranged in the groove, and the tail end of the folding air bag is fixed with a water squeezing plate.

Preferably, a plurality of water guide rods are connected between the back surface of the water squeezing net and the inner bottom of the water collecting tank, and the water guide rods are arranged in a downward inclined mode.

Preferably, the embedded electro-magnet that is equipped with of wringing board, wringing net and wringing board are stainless steel, the one end and the wringing board of electro-magnet are connected, coil both ends and the piezoceramics piece electric connection of coiling on the electro-magnet.

Compared with the prior art, the invention has the beneficial effects that:

1. through setting up sponge and the piezoceramics piece that absorbs water, can press the elastic plate earlier before the touch pad, absorb the moisture that probably remains on will pointing through the sponge that absorbs water and fall, make the piezoceramics piece be the spring power supply simultaneously, make its shrink to realize that the elastic plate is quick withdraws to the clearance inslot, can press the touch pad and discern, whole process time spent is few, improves the recognition rate.

2. Through setting up folding gasbag, can withdraw the in-process at the sponge that absorbs water, extrude the sponge that absorbs water through the stripper plate, extrude its inside water and flow into the water catch bowl in, finally inhale the cylindricality intracavity discharge lock outside.

Drawings

FIG. 1 is a schematic structural diagram of a fingerprint lock with finger cleaning function according to the present invention;

FIG. 2 is a schematic diagram illustrating an identification status of a fingerprint lock with finger cleaning function according to the present invention;

FIG. 3 is a schematic side view of a cleaning groove of a fingerprint lock with finger cleaning function according to the present invention;

fig. 4 is a schematic view of an embodiment 2 of a fingerprint lock with a finger cleaning function according to the present invention.

In the figure: the device comprises a lock body 1, a lock handle 2, an air pipe 3, a second cavity 4, a spring 5, a first cavity 6, a piston 7, a water outlet pipe 8, a water suction pipe 9, a cleaning groove 10, a connecting rod 11, an elastic plate 12, a water suction sponge 13, a touch pad 14, a piezoelectric ceramic plate 15, a water collecting groove 16, a water guide rod 17, a water squeezing net 18, a water squeezing plate 19, a folding air bag 20 and an electromagnet 21.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather should be construed as broadly as the present invention is capable of modification in various respects, all without departing from the spirit and scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Example 1

Referring to fig. 1-3, a fingerprint lock with finger cleaning function, including a fingerprint lock body 1 and a lock handle 2, a touch pad 14 of the fingerprint lock body 1 is arranged on the left side of the lock handle 2, a cleaning groove 10 and a cylindrical cavity are sequentially arranged in the lock handle 2 from left to right, a piston 7 is arranged in the cylindrical cavity, the cylindrical cavity is divided into a first cavity 6 and a second cavity 4 by the piston 7, an elastic plate 12 is arranged on the front side of the touch pad 14, a water collecting groove 16 is arranged on the front side of the elastic plate 12, a water squeezing net 18 is fixed on the inner wall of the water collecting groove 16, a plurality of water guide rods 17 are connected between the back of the water squeezing net 18 and the inner bottom of the water collecting groove 16, the water guide rods 17 are arranged in a downward inclined manner, and a plurality of water guide rods 17 are arranged in an inclined manner, so that water on the water squeezing net 18.

The outer wall of crowded net 18 bonds and has the sponge 13 that absorbs water, the back mounting of touch pad 14 has piezoceramics piece 15, the left side of piston 7 is fixed with the connecting rod 11 that extends to in the clearance groove 10, the end and the elastic plate 12 of connecting rod 11 are fixed, pass through spring 5 elastic connection between the right side of piston 7 and the inner wall in cylindricality chamber, the both ends and the piezoceramics piece 15 output electric connection of spring 5, the inner wall of first cavity 6 is connected with and absorbs water pipe 9 and outlet pipe 8, all install the check valve in absorbing water pipe 9 and the outlet pipe 8, the end and the sump 16 bottom intercommunication of absorbing water pipe 9, the end and the lock 2 outer wall intercommunication of outlet pipe 8, second cavity 4 is connected with trachea 3, the front inner wall of clearance groove 10 is equipped with the recess, be provided with the folding gasbag 20 of being connected with trachea 3 in the recess, the end of folding gasbag 20 is fixed.

In the invention, in an initial state, the elastic plate 12 is positioned on the upper side of the touch pad 14, when in identification, only a finger needs to press down the elastic plate 12, the finger firstly contacts with the absorption sponge 13 to absorb possible moisture on the finger, meanwhile, the elastic plate 12 enables the piezoelectric ceramic plate 15 and the touch pad 14 to be extruded due to the elasticity of the elastic plate 12, so that the piezoelectric ceramic plate releases electric energy to supply power to two ends of the spring 5, the spring 5 is equivalent to an electrified solenoid when electrified, each circle of spring is equivalent to annular current, the current direction in each circle of spring is the same, according to the mutual attraction between the currents in the same direction, each circle of spring is mutually attracted with the adjacent spring, so that the whole spring 5 can contract, the elastic plate 12 is pulled into the cleaning groove 10 through the piston 7 and the connecting rod 11, at the moment, the touch pad 14 is exposed to carry out identification, the whole process is rapid, and.

In the process that the elastic plate 12 enters the cleaning groove 10, the piston 7 moves towards the right side in the cylindrical cavity, gas in the second cavity 4 is squeezed into the folding air bag 20 through the air pipe 3, the folding air bag 20 inflates and expands to drive the water squeezing plate 19 to move, the water squeezing plate 19 squeezes the water absorbing sponge 13 to squeeze water in the water absorbing sponge 13, the water enters the water collecting groove 16 through the water squeezing net 18, the water guiding rods 17 which are obliquely arranged are arranged, water on the water squeezing net 18 can be quickly collected to the bottom of the water collecting groove 16 through the flow guiding effect of the water guiding rods 17, meanwhile, the piston 7 moves towards the right side to generate negative pressure in the first cavity 6, the water in the water collecting groove 16 is sucked into the first cavity 6 through the water suction pipe 9, after recognition, the spring 5 resets, the water absorbing sponge 13 after water squeezing also resets, and the water in the first cavity 6 is discharged through the water outlet pipe 8.

Example 2

Referring to fig. 4, the difference between this embodiment and embodiment 1 is that an electromagnet 21 is embedded in the wringing plate 19, the wringing net 18 and the wringing plate 19 are both made of stainless steel, one end of the electromagnet 21 is connected to the wringing plate 19, and both ends of a coil wound on the electromagnet 21 are electrically connected to the piezoelectric ceramic plate 15.

In the process of initial extrusion elastic plate 12 of finger, piezoceramics piece 15 supplies power for the first time, and in the in-process of crowded board 19 extrusion sponge 13 that absorbs water, elastic plate 12 also receives the extrusion of second time thereupon, extrudees piezoceramics piece 15 the second time simultaneously, and electromagnet 21 is supplied with to the electric energy part of first extrusion, and electromagnet 21 is supplied with completely to the electric energy of the extrusion of second time, and electromagnet 21 makes crowded board 19 produce magnetic attraction, adsorbs crowded net 18 to further improve the extrusion effect to absorbing sponge 13.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. The fingerprint lock with the finger cleaning function comprises a fingerprint lock body (1) and a lock handle (2), and is characterized in that a touch pad (14) of the fingerprint lock body (1) is arranged on the left side of the lock handle (2), the lock handle (2) is internally provided with a cleaning groove (10) and a cylindrical cavity in sequence from left to right, a piston (7) is arranged in the cylindrical cavity, the piston (7) divides the cylindrical cavity into a first cavity (6) and a second cavity (4), the front side of the touch pad (14) is provided with an elastic plate (12), the front side of the elastic plate (12) is provided with a water collecting groove (16), the inner wall of the water collecting groove (16) is fixed with a water squeezing net (18), the outer wall of the water squeezing net (18) is bonded with a water absorbing sponge (13), the back side of the touch pad (14) is provided with a piezoelectric ceramic plate (15), the left side of the piston (7) is fixed with a connecting rod (11) extending into the cleaning groove (10), the tail end of the connecting rod (11) is fixed with the elastic plate (12), the right side of the piston (7) is elastically connected with the inner wall of the cylindrical cavity through a spring (5), two ends of the spring (5) are electrically connected with the output end of the piezoelectric ceramic piece (15), the inner wall of the first cavity (6) is connected with a water suction pipe (9) and a water outlet pipe (8), check valves are respectively arranged in the water suction pipe (9) and the water outlet pipe (8), the tail end of the water suction pipe (9) is communicated with the bottom of the water collecting tank (16), the tail end of the water outlet pipe (8) is communicated with the outer wall of the lock handle (2), the second cavity (4) is connected with an air pipe (3), the inner wall of the front face of the cleaning groove (10) is provided with a groove, a folding air bag (20) connected with the air pipe (3) is arranged in the groove, and the tail end of the folding air bag (20) is fixedly provided with a water squeezing plate (19).

2. The fingerprint lock with the finger cleaning function according to claim 1, wherein a plurality of water guide rods (17) are connected between the back surface of the water squeezing net (18) and the inner bottom of the water collecting tank (16), and the water guide rods (17) are arranged in a downward inclination manner.

3. The fingerprint lock with the finger cleaning function according to claim 1, wherein an electromagnet (21) is embedded in the wringing plate (19), the wringing net (18) and the wringing plate (19) are both made of stainless steel, one end of the electromagnet (21) is connected with the wringing plate (19), and two ends of a coil wound on the electromagnet (21) are electrically connected with the piezoelectric ceramic plate (15).