Capacitive fingerprint acquisition instrument

Abstract

The utility model discloses a capacitive fingerprint acquisition instrument, belongs to the technical field of fingerprint acquisition instruments, and solves the problems that when an existing device acquires fingerprints, the fingerprints are difficult to identify correctly due to stains or grease on the fingers, and a shell is in contact with a wall surface due to the pressure of the fingers, so that the wall surface is easy to damage. A first groove is formed in the bottom of the front face of the outer shell, a second groove located in the middle of the first groove is further formed in the bottom of the front face of the outer shell, a cleaning sponge is movably sleeved with the second groove, a protective pad is bonded to the back face of the outer shell, and the back face of the outer shell can be prevented from making direct contact with the wall face through the protective pad. And the cleaning sponge is limited through the limiting frame and the insertion rod, so that when fingerprints are collected, fingers can be wiped on the side wall of the cleaning sponge, stains and grease on the fingers are cleaned up, and the influence of the stains and the grease on the fingers on fingerprint collection is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to fingerprint collection instrument technical field, concretely is a kind of capacitive fingerprint collection instrument. BACKGROUND

[0002] Fingerprint collector is a kind of precision electronic instrument using the characteristics that the fingerprints of people are different to identify identity, working principle includes four functions of collecting fingerprint image, extracting fingerprint feature, saving data and carrying out fingerprint comparison, and the current fingerprint collection module mainly has optical fingerprint collection module, ultrasonic fingerprint collection module and capacitive fingerprint collection module.

[0003] According to the search, in the application of patent application No.202322032573.X, a kind of capacitive fingerprint collection instrument is disclosed, including shell and fixed seat, the shell front is fixed and is equipped with fingerprint collection module, the fingerprint collection module is arranged on the surface of shell the shell inside fixedly connected with circuit board, the shell rear movable clamping has back cover, the fixed seat front is fixed and is equipped with sliding slot, the shell is slidably connected in the sliding slot of fixed seat on the back cover, the fixed seat corner is connected with fixed block, the fixed block quantity is four, the fixed block is fixedly provided with hole inside;

[0004] Although the capacitive fingerprint collection instrument is connected into the sliding slot on the shell by back cover, then normal use, it can also be removed, and fixed on the plane by supporting leg and suction cup, but the capacitive fingerprint collection instrument is difficult to correctly identify fingerprint when collecting fingerprint, because there is stain or grease on finger, and shell is contacted with wall surface due to the pressure of finger, easy to cause wall surface damage.

[0005] Therefore, we propose a kind of capacitive fingerprint collection instrument. INVENTION CONTENTS

[0006] In view of the deficiencies of prior art, the capacitive fingerprint collection instrument provided by the utility model solves the problems that the existing device is difficult to correctly identify fingerprint when collecting fingerprint, because there is stain or grease on finger, and shell is contacted with wall surface due to the pressure of finger, easy to cause wall surface damage.

[0007] To achieve the above purpose, the utility model is realized by the following technical scheme: a kind of capacitive fingerprint collection instrument, including shell body, the front side of the shell body is provided with operating panel and fingerprint collection module, the inside of the shell body is provided with the circuit board being communicated with operating panel and fingerprint collection module;

[0008] The bottom of the front face of the outer shell is provided with a first recess, and the bottom of the front face of the outer shell is also provided with a second recess located in the middle of the first recess, the inside of the second recess movably sleeving a cleaning sponge, the inside of the first recess clamping a limiting frame matched with the specification thereof, the back face of the limiting frame contacting the front side of the cleaning sponge, and the back face of the outer shell being bonded with a protective pad.

[0009] Preferably, four insertion rods are fixedly installed on the back face of the limiting frame, four insertion holes matched with the positions of the insertion rods and having the same specification are formed in the four corners of the side wall of the first recess, and the insertion rods are inserted into the inside of the insertion holes, wherein the limiting frame can be fixedly positioned in the inside of the first recess by clamping the insertion rods in the inside of the insertion holes.

[0010] Preferably, the protective pad is in the shape of a square frame, and the material of the protective pad is silica gel, wherein the back face of the outer shell can be prevented from directly contacting the wall surface by the protective pad, and the wall surface is favorably protected.

[0011] Preferably, the base comprises a first connecting rod, a bottom plate, a suction disc, a knob and a second connecting rod, the left and right sides of the bottom face of the outer shell are symmetrically provided with threaded holes, the second connecting rod is fixedly installed on one side of the top face of the bottom plate, the first connecting rod is rotatably installed on the other side of the top face of the bottom plate through a bearing ring, and the diameters of the second connecting rod and the first connecting rod are matched with the diameter of the threaded hole, wherein the first connecting rod and the second connecting rod can be inserted into the inside of any threaded hole.

[0012] Preferably, the top end of the first connecting rod is provided with external threads, the top end of the first connecting rod is threadedly sleeved in the inside of the threaded hole, a knob is fixedly sleeved on the middle portion of the outer surface of the first connecting rod, and a suction disc is fixedly installed on the four corners of the bottom face of the bottom plate, wherein the top end of the first connecting rod can be threadedly sleeved in the inside of the threaded hole by rotating the first connecting rod through the knob, and then the outer shell is fixed on the first connecting rod, so that the base can be installed on the bottom face of the outer shell.

[0013] Preferably, the front face of the outer shell is provided with a mounting groove located directly above the second recess, the fingerprint collection module is installed in the inside of the mounting groove, two symmetrically distributed hanging plates are fixedly installed on the back side of the top face of the outer shell, and the side walls of the two hanging plates are both provided with perforations, wherein the fingerprint collection module is favorably installed through the mounting groove, the screw can pass through the perforations, and then the hanging plates and the outer shell below the hanging plates are installed on the wall surface.

[0014] The utility model provides a capacitive fingerprint collection appearance, has the following beneficial effects:

[0015] 1. The capacitive fingerprint collector, through the protective pad, the back of the shell body can be prevented from directly contacting the wall surface, which is beneficial to protecting the wall surface and avoiding the back of the shell body from colliding with the wall surface to cause damage to the wall surface; through the setting of the limiting frame and the insertion rod, the insertion rod is clamped in the inside of the insertion hole, the cleaning sponge can be limited, when collecting fingerprints, the finger can be wiped on the side wall of the cleaning sponge to clean the stains and grease on the finger, thereby avoiding the influence of the stains and grease on the finger on the fingerprint collection, so that the fingerprints can be quickly collected, and the problem that the existing device is difficult to correctly identify the fingerprints due to the stains or grease on the finger, and the shell body is in contact with the wall surface due to the pressure of the finger, which easily causes damage to the wall surface is solved;

[0016] 2. The capacitive fingerprint collector, by moving the first connecting rod and the second connecting rod to the lower sides of the two threaded holes respectively, and then rotating the first connecting rod through the knob, the top of the first connecting rod can be sleeved in the threaded hole above, and the second connecting rod can also be inserted into the threaded hole above, so that the base can be installed on the bottom surface of the shell body, achieving the purpose of facilitating the assembly and disassembly of the base and the shell body, and the bottom plate can be fixed on the plane through the suction cup, which is simple and convenient to use. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structural schematic view of the utility model;

[0018] Figure 2 It is a back structure schematic view of the utility model;

[0019] Figure 3 It is a shell body structure schematic view of the utility model;

[0020] Figure 4 It is an enlarged structure schematic view of A of the utility model Figure 3 ;

[0021] Figure 5 It is a base structure schematic view of the utility model;

[0022] Figure 6 It is a cleaning sponge and limiting frame structure schematic view of the utility model.

[0023] In the drawing: 1, shell body; 11, operation panel; 12, installation groove; 13, fingerprint collection module; 14, first groove; 15, insertion hole; 16, second groove; 17, threaded hole; 2, base; 21, first connecting rod; 22, bottom plate; 23, suction cup; 24, knob; 25, second connecting rod; 3, hanging plate; 31, perforation; 4, protective pad; 5, cleaning sponge; 51, limiting frame; 52, insertion rod. DETAILED DESCRIPTION

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example 1:

[0026] like Figures 1-6 As shown: The enclosure includes a housing 1. An operation panel 11 and a fingerprint acquisition module 13 are located on the front side of the housing 1. A circuit board connected to the operation panel 11 and the fingerprint acquisition module 13 is located inside the housing 1. A first groove 14 is formed at the bottom of the front side of the housing 1. A second groove 16, located in the middle of the first groove 14, is also formed at the bottom of the front side of the housing 1. A cleaning sponge 5 is movably fitted inside the second groove 16. A limiting frame 51 matching its specifications is snapped into the inside of the first groove 14. The back of the limiting frame 51 contacts the front side of the cleaning sponge 5. A protective pad 4 is adhered to the back of the housing 1. Four insert rods 52 are fixedly installed at the four corners of the back of the limiting frame 51. The four corners of the sidewall of the first groove 14 have... Four identical sockets 15 are positioned opposite to the insertion rod 52. The insertion rod 52 is inserted into the socket 15. The protective pad 4 is square-shaped and made of silicone. The protective pad 4 prevents the back of the outer shell 1 from directly contacting the wall, thus protecting the wall and preventing damage to the wall caused by the back of the outer shell 1 bumping against the wall. The limiting frame 51 and the insertion rod 52 are used to lock the insertion rod 52 into the socket 15, which can limit the cleaning sponge 5. When collecting fingerprints, the finger can be wiped on the side wall of the cleaning sponge 5 to clean the dirt and oil on the finger, avoiding the impact of dirt and oil on fingerprint collection, so as to facilitate rapid fingerprint collection.

[0027] Example 2:

[0028] like Figure 1 , 2As shown in Figures 3 and 5: The base 2 includes a first connecting rod 21, a base plate 22, a suction cup 23, a knob 24, and a second connecting rod 25. Threaded holes 17 are symmetrically provided on the left and right sides of the bottom surface of the outer casing 1. The second connecting rod 25 is fixedly installed on one side of the top surface of the base plate 22, and the first connecting rod 21 is rotatably installed on the other side of the top surface of the base plate 22 via a bearing ring. The diameters of both the second connecting rod 25 and the first connecting rod 21 match the diameter of the threaded holes 17. The top end of the first connecting rod 21 has an external thread, which is threaded into the inside of the threaded hole 17. A knob is fixedly installed in the middle of the outer surface of the first connecting rod 21. 24. Suction cups 23 are fixedly installed at the four corners of the bottom surface of the base plate 22. By moving the first connecting rod 21 and the second connecting rod 25 to the bottom of the two threaded holes 17 respectively, and then rotating the first connecting rod 21 by the knob 24, the top thread of the first connecting rod 21 can be threaded into the threaded hole 17 above it. At the same time, the second connecting rod 25 can be inserted into the threaded hole 17 above it, so that the base 2 can be installed on the bottom surface of the outer shell 1. This achieves the purpose of facilitating the assembly and disassembly of the base 2 and the outer shell 1. The base plate 22 can be adsorbed and fixed on the flat surface by the suction cups 23, which is simple and convenient to use.

[0029] Example 3:

[0030] like Figures 1-3 As shown: The front of the outer shell 1 has a mounting groove 12 located directly above the second groove 16. The fingerprint acquisition module 13 is installed inside the mounting groove 12. Two symmetrically distributed hanging plates 3 are fixedly installed on the rear side of the top surface of the outer shell 1. The side walls of the two hanging plates 3 are provided with through holes 31. The fingerprint acquisition module 13 can be installed through the mounting groove 12. Screws can be passed through the through holes 31, and then the hanging plates 3 and the outer shell 1 below them can be installed on the wall.

[0031] The working principle and usage process of this utility model: When using this capacitive fingerprint collector, screws can be passed through the through hole 31 to install the mounting plate 3 and the outer shell 1 below it on the wall. The protective pad 4 can prevent the back of the outer shell 1 from directly contacting the wall, which is beneficial for protecting the wall. If it is necessary to move the outer shell 1 to a flat surface, the first connecting rod 21 and the second connecting rod 25 can be moved to the bottom of the two threaded holes 17 respectively. Then, by rotating the knob 24, the top of the first connecting rod 21 can be threaded into the threaded hole 17 above it. Meanwhile, the second connecting rod 25 can be inserted into the threaded hole 17 above it, so that the base 2 can be installed on the bottom surface of the outer shell 1. Then, the base plate 22 can be attached to the flat surface by suction cup 23. With the setting of cleaning sponge 5, when collecting fingerprints, the finger can be wiped on the side wall of cleaning sponge 5 to clean the dirt and oil on the finger before fingerprint collection. With the setting of limiting frame 51 and insert rod 52, insert rod 52 is snapped into the inside of insert hole 15, which can limit the cleaning sponge 5 and make it easy to remove the cleaning sponge 5 for replacement.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0033] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A capacitive fingerprint collector comprising a shell (1), the front side of the shell (1) is provided with an operation panel (11) and a fingerprint collection module (13), the inside of the shell (1) is provided with a circuit board in communication with the operation panel (11) and the fingerprint collection module (13); characterized in that The bottom of the front of the shell (1) is provided with a first groove (14), and the bottom of the front of the shell (1) is also provided with a second groove (16) located in the middle of the first groove (14), the inside of the second groove (16) movably sleeves a cleaning sponge (5), the inside of the first groove (14) is clamped with a limiting frame (51) matched with its specification, the back of the limiting frame (51) is in contact with the front side of the cleaning sponge (5), and the back of the shell (1) is attached with a protective pad (4).

2. The capacitive fingerprint collection instrument according to claim 1, characterized in that: Four insertion rods (52) are fixedly installed on the back of the limiting frame (51), four insertion holes (15) with the same specification as the positions of the insertion rods (52) are formed in the four corners of the side wall of the first groove (14), and the insertion rods (52) are inserted into the insertion holes (15).

3. The capacitive fingerprint collection instrument according to claim 1, characterized in that: The protective pad (4) is in the shape of a square frame, and the material of the protective pad (4) is silica gel.

4. The capacitive fingerprint collection instrument according to claim 1, characterized in that: The base (2) comprises a first connecting rod (21), a bottom plate (22), a suction cup (23), a knob (24) and a second connecting rod (25), the bottom surface of the shell (1) is symmetrically provided with threaded holes (17) on the left and right sides, the second connecting rod (25) is fixedly installed on one side of the top surface of the bottom plate (22), the first connecting rod (21) is rotatably installed on the other side of the top surface of the bottom plate (22) through a bearing ring, and the diameters of the second connecting rod (25) and the first connecting rod (21) are matched with the diameter of the threaded hole (17).

5. A capacitive fingerprint acquisition device according to claim 4, characterized in that: An external thread is formed in the top end of the first connecting rod (21), the top end of the first connecting rod (21) is threadedly sleeved in the threaded hole (17), the knob (24) is fixedly sleeved on the middle portion of the outer surface of the first connecting rod (21), and the suction cup (23) is fixedly installed on the bottom surface of the bottom plate (22).

6. The capacitive fingerprint sensing device according to claim 1, characterized in that: The front surface of the shell (1) is provided with a mounting groove (12) located directly above the second groove (16), the fingerprint collection module (13) is mounted in the mounting groove (12), and two symmetrically distributed hanging plates (3) are fixedly installed on the back surface of the top surface of the shell (1), and the side walls of the two hanging plates (3) are both provided with perforations (31).

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