阅读说明：本技术 一种具有散热功能的指纹识别门禁设备 (Fingerprint identification entrance guard's equipment with heat dissipation function ) 是由 蔡财华 于 2021-08-16 设计创作，主要内容包括：本发明涉及一种具有散热功能的指纹识别门禁设备,包括主体、检测机构和散热机构,检测机构包括玻璃板、检测装置、伸缩管、两个连接组件、两个控制组件、两个导向杆和若干第一弹簧,散热机构包括传动组件和两个搅拌组件,该具有散热功能的指纹识别门禁设备通过检测机构,只有使用者按压玻璃板一定的距离,才可以控制检测装置进行识别工作,避免按压力度过小而导致指纹模糊,从而防止对识别的精度产生影响,且也实现了检测装置只有在需要检测时才会工作的功能,从而可以减少检测装置使用的电能,通过散热机构,加快了主体内部的空气的流动速度,提升散热的效果,避免主体内部过热而损坏检测装置,从而防止对指纹识别工作产生影响。(The invention relates to a fingerprint identification entrance guard device with a heat dissipation function, which comprises a main body, a detection mechanism and a heat dissipation mechanism, wherein the detection mechanism comprises a glass plate, a detection device, a telescopic pipe, two connecting assemblies, two control assemblies, two guide rods and a plurality of first springs, the heat dissipation mechanism comprises a transmission assembly and two stirring assemblies, the fingerprint identification entrance guard device with the heat dissipation function can control the detection device to perform identification work only by pressing the glass plate for a certain distance through the detection mechanism, so that the phenomenon that fingerprints are fuzzy due to the fact that the pressing force is too small is avoided, the influence on the identification precision is avoided, the function that the detection device can work only when the detection device needs to be detected is realized, the electric energy used by the detection device can be reduced, the flowing speed of air in the main body is accelerated through the heat dissipation mechanism, and the heat dissipation effect is improved, avoid the inside overheated and damage detection device of main part to prevent to produce the influence to fingerprint identification work.)

1. A fingerprint identification access control device with a heat dissipation function is characterized by comprising a main body (1), a detection mechanism and a heat dissipation mechanism, wherein the detection mechanism and the heat dissipation mechanism are both arranged inside the main body (1), and the detection mechanism is connected with the heat dissipation mechanism;

the detection mechanism comprises a glass plate (2), a detection device (5), a telescopic pipe (4), two connecting assemblies, two control assemblies, two guide rods (8) and a plurality of first springs (3), wherein the glass plate (2) is horizontally arranged above the main body (1), an opening is formed in the upper side of the main body (1), the detection device (5) is arranged below the glass plate (2), the two ends of the telescopic pipe (4) are respectively connected with the lower side of the glass plate (2) and the upper side of the main body (1), the first springs (3) are circumferentially and uniformly arranged above the main body (1), the first springs (3) are arranged inside the telescopic pipe (4), the two ends of the first springs (3) are respectively connected with the lower side of the glass plate (2) and the upper side of the main body (1), the two sides of the lower side of the detection device (5) are respectively connected with the two connecting assemblies, the two control assemblies are respectively connected with the two connecting assemblies, the connecting assemblies are connected with the heat dissipation mechanism, the heat dissipation mechanism is arranged at the bottom in the main body (1), two ends of the guide rod (8) are respectively connected with the inner walls of two sides of the main body (1), the two guide rods (8) are arranged in parallel, and the guide rod (8) is connected with the connecting assemblies;

the control assembly comprises a control box (14), a control panel (12), a switch (13), control rods (11) and an exhaust pipe (15), wherein the control box (14) is arranged at the top of the main body (1), the control panel (12) is arranged inside the control box (14), the control panel (12) is connected with the inner wall of the control box (14) in a sealing and sliding manner, small holes are formed in the lower part of the control box (14), one end of the control rod (11) is connected with the lower part of the control panel (12), the other end of the control rod (11) penetrates through the small holes, the control rod (11) is matched with the small holes, the cross section of the control rod (11) is square, the two connecting assemblies are respectively connected with the other ends of the two control rods (11), the switch (13) is arranged at the top of the control box (14), and the switch (13) is just opposite to the control panel (12), the upper part of the control box (14) is communicated with an exhaust pipe (15), an air inlet is formed in the other side of the control box (14), first one-way valves are arranged in the air inlet and the exhaust pipe (15), and the first one-way valves and the switch (13) are electrically connected with the PLC;

the heat dissipation mechanism comprises a transmission assembly and two stirring assemblies, the transmission assembly is connected with the connecting assembly, the transmission assembly is arranged between the two stirring assemblies and connected with the stirring assemblies, a first through hole is formed in one side of the main body (1), a second through hole is formed in the other side of the main body (1), second one-way valves are arranged in the first through hole and the second through hole and electrically connected with the PLC, and a filter screen (23) is arranged in the first through hole;

the stirring subassembly includes first bearing, (mixing) shaft (21) and a plurality of stirring board (22), bottom in main part (1) is equipped with two recesses, and two first bearings set up respectively in the inside of two recesses, the one end of (mixing) shaft (21) is connected with the inner circle of first bearing, and each stirring board (22) circumference evenly sets up in the periphery of (mixing) shaft (21), mixing shaft (21) are connected with the drive assembly.

2. The fingerprint identification entrance guard equipment with the heat dissipation function according to claim 1, wherein the connection assembly comprises a connection block (7), a first connection rod (6), a second connection rod (10) and two second springs (9), the connection block (7) is provided with two through holes, the two guide rods (8) respectively penetrate through the two through holes, the connection block (7) is slidably connected with the guide rods (8), one ends of the two second springs (9) are respectively connected with two ends of one side of the connection block (7), the other ends of the second springs (9) are connected with the inner wall of the main body (1), the two second springs (9) are respectively wound on the two guide rods (8), two ends of the first connection rod (6) are respectively hinged with the detection device (5) and the connection block (7), two ends of the second connection rod (10) are respectively hinged with one end of the control rod (11) far away from the control board (12) and the connection block (7), the lower part of the connecting block (7) is connected with a transmission component.

3. The fingerprint identification entrance guard equipment with heat dissipation function of claim 2, characterized in that, the coupling assembling still includes two guide units, two guide units set up respectively on two fenestrate inner walls, the guide unit includes two guide blocks (16), two guide blocks (16) are set up about fenestrate axis symmetry, the one end and the fenestrate inner wall of guide block (16) are connected, be equipped with two spouts on guide bar (8), the other end of two guide blocks (16) sets up respectively in the inside of two spouts, guide block (16) and spout match, guide block (16) and spout sliding connection.

4. The fingerprint identification entrance guard equipment with heat dissipation function of claim 2, characterized in that, drive assembly includes second bearing, ball screw pair (18), drive unit and two branch (17), bottom in main part (1) is equipped with the breach, the second bearing sets up the inside at the breach, the one end of the screw rod of ball screw pair (18) is connected with the inner circle of second bearing, be equipped with the limiting plate on the other end of the screw rod of ball screw pair (18), the one end of two branch (17) is articulated with the below of two connecting blocks (7) respectively, the other end of branch (17) is articulated with the nut of ball screw pair (18), the screw rod of ball screw pair (18) passes through drive unit and is connected with (mixing) shaft (21).

5. The fingerprint identification entrance guard equipment with heat dissipation function of claim 4, wherein the transmission unit comprises a belt (20) and three transmission wheels (19), one of the transmission wheels (19) is connected with the screw of the ball screw pair (18), the other two transmission wheels (19) are respectively connected with two stirring shafts (21), and the three transmission wheels (19) are connected through the belt (20).

Technical Field

The invention relates to the field of entrance guard security, in particular to a fingerprint identification entrance guard device with a heat dissipation function.

Background

The fingerprint access control system replaces the traditional key with the finger, only needs to put the finger flat on the collection window of the fingerprint collection instrument during use, can finish the unlocking task, has very simple and convenient operation, and avoids other access control systems (traditional mechanical locks, coded locks, identification cards and the like) from being possibly forged, stolen, forgotten, damaged and the like.

Present fingerprint entrance guard equipment is when using, when user's pressing force degree is less, it is fuzzy to lead to the fingerprint that leaves on the glass board easily, thereby lead to the unable accurate discernment fingerprint of detection device, thereby produce the influence to fingerprint identification's precision, moreover, current fingerprint identification is at the during operation, the inside temperature of main part can rise, if the inside overheated probability that increases the damage of fingerprint identification device easily of main part, thereby lead to fingerprint identification work normally not going on, thereby the reliability of current fingerprint identification equipment has been reduced.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: in order to overcome the defects of the prior art, the fingerprint identification access control equipment with the heat dissipation function is provided.

The technical scheme adopted by the invention for solving the technical problems is as follows: a fingerprint identification access control device with a heat dissipation function comprises a main body, a detection mechanism and a heat dissipation mechanism, wherein the detection mechanism and the heat dissipation mechanism are both arranged inside the main body, and the detection mechanism is connected with the heat dissipation mechanism;

the detection mechanism comprises a glass plate, a detection device, a telescopic pipe, two connecting assemblies, two control assemblies, two guide rods and a plurality of first springs, the glass plate is horizontally arranged above the main body, an opening is arranged above the main body, the detection device is arranged below the glass plate, two ends of the telescopic pipe are respectively connected with the lower part of the glass plate and the upper part of the main body, the first springs are circumferentially and uniformly arranged above the main body, the first springs are arranged in the telescopic pipe, two ends of the first springs are respectively connected with the lower part of the glass plate and the upper part of the main body, two sides of the lower part of the detection device are respectively connected with the two connecting assemblies, the two control assemblies are respectively connected with the two connecting assemblies, the connecting assemblies are connected with a heat dissipation mechanism, the heat dissipation mechanism is arranged at the bottom in the main body, and two ends of the guide rods are respectively connected with the inner walls of two sides of the main body, the two guide rods are arranged in parallel and connected with the connecting assembly;

the control component comprises a control box, a control panel, a switch, a control rod and an exhaust pipe, the control box is arranged at the top in the main body, the control panel is arranged in the control box and is in sealing sliding connection with the inner wall of the control box, a small hole is arranged below the control box, one end of the control rod is connected with the lower part of the control plate, the other end of the control rod penetrates through the small hole, the control rod is matched with the small hole, the cross section of the control rod is square, the two connecting components are respectively connected with the other ends of the two control rods, the switch is arranged at the top in the control box, the switch is arranged opposite to the control panel, the upper part of the control box is communicated with the exhaust pipe, an air inlet is formed in the other side of the control box, first one-way valves are arranged in the air inlet and the exhaust pipe, and the first one-way valves and the switch are electrically connected with the PLC;

the heat dissipation mechanism comprises a transmission assembly and two stirring assemblies, the transmission assembly is connected with the connecting assembly, the transmission assembly is arranged between the two stirring assemblies and connected with the stirring assemblies, a first through hole is formed in one side of the main body, a second through hole is formed in the other side of the main body, second one-way valves are arranged in the first through hole and the second through hole and electrically connected with the PLC, and a filter screen is arranged in the first through hole;

the stirring assembly comprises a first bearing, a stirring shaft and a plurality of stirring plates, two notches are formed in the bottom in the main body, the two first bearings are arranged in the two notches respectively, one end of the stirring shaft is connected with the inner ring of the first bearing, the stirring plates are circumferentially and uniformly arranged on the periphery of the stirring shaft, and the stirring shaft is connected with the transmission assembly.

As preferred, in order to drive the control lever and remove, coupling assembling includes connecting block, first connecting rod, second connecting rod and two second springs, be equipped with two perforation on the connecting block, two guide bars pass two perforation respectively, connecting block and guide bar sliding connection, the one end of two second springs is connected with the both ends of one side of connecting block respectively, the other end of second spring and the inner wall connection of main part, two second springs twine respectively on two guide bars, the both ends of first connecting rod are articulated with detection device and connecting block respectively, the both ends of second connecting rod are articulated with the one end and the connecting block of keeping away from the control panel of control lever respectively, the below and the drive assembly of connecting block are connected.

As preferred, for the moving direction of restriction connecting block, coupling assembling still includes two guide unit, and two guide unit set up respectively on two fenestrate inner walls, guide unit includes two guide blocks, and two guide blocks set up about fenestrate axis symmetry, the one end and the fenestrate interior wall connection of guide block, be equipped with two spouts on the guide bar, the other end of two guide blocks sets up the inside at two spouts respectively, the guide block matches with the spout, guide block and spout sliding connection.

As preferred, for the transmission power, the drive assembly includes second bearing, ball screw pair, drive unit and two branches, bottom in the main part is equipped with the breach, the second bearing sets up the inside at the breach, the one end of the vice screw rod of ball screw is connected with the inner circle of second bearing, be equipped with the limiting plate on the other end of the vice screw rod of ball screw, the one end of two branches is articulated with the below of two connecting blocks respectively, the other end of branch is articulated with the vice nut of ball screw, the vice screw rod of ball screw passes through drive unit and agitator shaft and is connected.

Preferably, in order to drive the stirring shafts to rotate, the transmission unit comprises a belt and three transmission wheels, one of the transmission wheels is connected with a screw of the ball screw pair, the other two transmission wheels are respectively connected with the two stirring shafts, and the three transmission wheels are connected through the belt.

The invention has the advantages that the fingerprint identification entrance guard equipment with the heat dissipation function can control the detection device to carry out identification work only by pressing the glass plate for a certain distance by the detection mechanism, so as to avoid fingerprint blurring caused by over-small pressing force and prevent influence on the identification precision, thereby improving the reliability of the equipment, and also realizing the function that the detection device can work only when needing to be detected, thereby reducing the electric energy used by the detection device and improving the environmental protection of the equipment, compared with the existing detection mechanism, the detection mechanism and the heat dissipation mechanism are integrated into a linkage mechanism, thereby being free from electric drive and more environment-friendly, the flowing speed of air in the main body is accelerated by the heat dissipation mechanism, the heat dissipation effect is improved, the detection device is prevented from being damaged by overheating in the main body, thereby preventing influence on the fingerprint identification work, thereby the reliability of equipment has been improved, compare with current heat dissipation mechanism, this heat dissipation mechanism not only has transmitted power through the drive assembly who sets up, can also make the displacement of two connecting blocks equal for the state of slope can not appear when detection device removes, makes on the glass board can not be because of the slope strikes the main part, avoids causing the damage of glass board, prevents to produce the influence to fingerprint identification work, thereby has improved the reliability of equipment.

Drawings

The invention is further illustrated with reference to the following figures and examples.

Fig. 1 is a schematic structural view of a fingerprint identification access control device with a heat dissipation function according to the present invention;

fig. 2 is a schematic structural diagram of a control assembly of a fingerprint identification access control device with a heat dissipation function according to the present invention;

FIG. 3 is an enlarged view of portion A of FIG. 1;

fig. 4 is a schematic structural view of a guide unit of the fingerprint identification access control device having a heat dissipation function according to the present invention;

in the figure: 1. the automatic glass cleaning machine comprises a main body, 2 parts of a glass plate, 3 parts of a first spring, 4 parts of an extension tube, 5 parts of a detection device, 6 parts of a first connecting rod, 7 parts of a connecting block, 8 parts of a guide rod, 9 parts of a second spring, 10 parts of a second connecting rod, 11 parts of a control rod, 12 parts of a control plate, 13 parts of a switch, 14 parts of a control box, 15 parts of an exhaust pipe, 16 parts of a guide block, 17 parts of a support rod, 18 parts of a ball screw pair, 19 parts of a driving wheel, 20 parts of a belt, 21 parts of a stirring shaft, 22 parts of a stirring plate and 23 parts of a filter screen.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.

As shown in fig. 1, a fingerprint identification access control device with a heat dissipation function comprises a main body 1, a detection mechanism and a heat dissipation mechanism, wherein the detection mechanism and the heat dissipation mechanism are both arranged inside the main body 1, and the detection mechanism is connected with the heat dissipation mechanism;

PLCs, i.e., programmable logic controllers, are generally used for the processing of data and the receipt and output of instructions for central control.

This fingerprint identification entrance guard equipment with heat dissipation function passes through detection mechanism, only the user presses 2 certain distances of glass board, just can control detection device 5 and discern work, avoid pressing the intensity undersize and lead to the fingerprint fuzzy, thereby prevent to produce the influence to the precision of discernment, thereby the reliability of equipment has been improved, and realized also that detection device 5 only detects the function that time measuring just can work in needs, thereby can reduce the electric energy that detection device 5 used, the environmental protection of equipment has been improved, through heat dissipation mechanism, the flow velocity of the inside air of main part 1 has been accelerated, promote radiating effect, avoid main part 1 inside overheated and damage detection device 5, thereby prevent to produce the influence to fingerprint identification work, thereby the reliability of equipment has been improved.

As shown in fig. 1-2, the detecting mechanism includes a glass plate 2, a detecting device 5, a telescopic tube 4, two connecting assemblies, two control assemblies, two guide rods 8 and a plurality of first springs 3, the glass plate 2 is horizontally disposed above the main body 1, an opening is disposed above the main body 1, the detecting device 5 is disposed below the glass plate 2, two ends of the telescopic tube 4 are respectively connected with the lower portion of the glass plate 2 and the upper portion of the main body 1, each first spring 3 is circumferentially and uniformly disposed above the main body 1, the first spring 3 is disposed inside the telescopic tube 4, two ends of the first spring 3 are respectively connected with the lower portion of the glass plate 2 and the upper portion of the main body 1, two sides of the lower portion of the detecting device 5 are respectively connected with the two connecting assemblies, the two control assemblies are respectively connected with the two connecting assemblies, the connecting assemblies are connected with the heat dissipating mechanism, the heat dissipation mechanism is arranged at the bottom in the main body 1, two ends of the guide rods 8 are respectively connected with the inner walls of two sides of the main body 1, the two guide rods 8 are arranged in parallel, and the guide rods 8 are connected with the connecting assembly;

the control assembly comprises a control box 14, a control panel 12, a switch 13, a control rod 11 and an exhaust pipe 15, the control box 14 is arranged at the top of the main body 1, the control panel 12 is arranged inside the control box 14, the control panel 12 is connected with the inner wall of the control box 14 in a sealing and sliding manner, a small hole is arranged below the control box 14, one end of the control rod 11 is connected with the lower part of the control panel 12, the other end of the control rod 11 penetrates through the small hole, the control rod 11 is matched with the small hole, the cross section of the control rod 11 is square, the two connecting assemblies are respectively connected with the other ends of the two control rods 11, the switch 13 is arranged at the top of the control box 14, the switch 13 and the control panel 12 are arranged right opposite, the upper part of the control box 14 is communicated with the exhaust pipe 15, an air inlet is arranged on the other side of the control box 14, a first one-way valve is arranged in the air inlet and the exhaust pipe 15, the first one-way valve and the switch 13 are electrically connected with the PLC;

when fingerprint identification is carried out, the glass plate 2 is manually pressed, so that the glass plate 2 moves downwards, the first spring 3 and the extension pipe 4 are compressed, air in the extension pipe 4 enters the inside of the main body 1, air can be discharged from the second through hole, the detection device 5 moves downwards, the connecting assembly is driven to work, the control rod 11 is driven to move upwards, the control panel 12 moves upwards in the control box 14, the control panel 12 is abutted against the switch 13, a signal is sent to the PLC, the PLC controls the detection device 5 to work to identify the fingerprint of a user, the detection device 5 can be controlled to carry out identification work only when the user presses the glass plate 2 for a certain distance, the phenomenon that the fingerprint is fuzzy due to the fact that the pressing degree is too small is avoided, the influence on identification precision is prevented, and the reliability of equipment is improved, and has realized the function that the detection device 5 will work only when needing to detect, thus can reduce the electric energy that the detection device 5 uses, has improved the environmental protection of the apparatus, when the control panel 12 moves upwards, the air in the control box 14 will be discharged from the exhaust pipe 15, after detecting and finishing, under the influence of the restoring force of the first spring 3, drive the glass plate 2 to move upwards, make the control panel 12 can move downwards, make the air inside the main body 1 enter the inside of the control box 14 through the inlet port, make the air pressure inside the main body 1 reduce, facilitate the outside air enter the inside of the main body 1 through the first through hole after the impurity removal of the filter screen 23, thus can accelerate the flow velocity of the air inside and outside the main body 1, make the heat inside the main body 1 can be taken away from the main body 1, thus has realized the function of radiating for the inside of the main body 1, has promoted the radiating effect, the practicality is higher.

As shown in fig. 1 and 3, the heat dissipation mechanism includes a transmission assembly and two stirring assemblies, the transmission assembly is connected with the connecting assembly, the transmission assembly is disposed between the two stirring assemblies, the transmission assembly is connected with the stirring assemblies, one side of the main body 1 is provided with a first through hole, the other side of the main body 1 is provided with a second through hole, the first through hole and the second through hole are both provided with a second one-way valve, the second one-way valve is electrically connected with the PLC, and the first through hole is provided with a filter screen 23;

the stirring subassembly includes first bearing, (mixing) shaft 21 and a plurality of stirring board 22, bottom in the main part 1 is equipped with two recesses, and two first bearings set up the inside at two recesses respectively, the one end of (mixing) shaft 21 is connected with the inner circle of first bearing, and each stirring board 22 circumference evenly sets up on the periphery of (mixing) shaft 21, the (mixing) shaft 21 is connected with drive assembly.

When coupling assembling work, can drive transmission assembly work, make (mixing) shaft 21 rotate, thereby make stirring board 22 rotate, make stirring board 22 carry out the function of stirring to the air of main part 1 inside, thereby accelerated the circulation speed of the air of main part 1 inside, promote radiating effect, avoid main part 1 inside overheated and damage detection device 5, thereby prevent to produce the influence to fingerprint identification work, thereby improved the reliability of equipment.

As preferred, in order to drive the control lever 11 and remove, coupling assembling includes connecting block 7, first connecting rod 6, second connecting rod 10 and two second springs 9, be equipped with two perforation on the connecting block 7, two guide bars 8 pass two perforation respectively, connecting block 7 and 8 sliding connection of guide bar, the one end of two second springs 9 is connected with the both ends of one side of connecting block 7 respectively, the other end of second spring 9 and the interior wall connection of main part 1, two second springs 9 twine respectively on two guide bars 8, the both ends of first connecting rod 6 are articulated with detection device 5 and connecting block 7 respectively, the both ends of second connecting rod 10 are articulated with the one end and the connecting block 7 of keeping away from control panel 12 of control lever 11 respectively, the below and the drive assembly of connecting block 7 are connected.

When carrying out fingerprint identification during operation, artificially press glass board 2, make glass board 2 downstream, thereby make detection device 5 downstream, thereby it removes to drive connecting block 7 through first connecting rod 6, make two connecting blocks 7 remove to the direction of keeping away from each other, compression second spring 9, can drive control lever 11 rebound through second connecting rod 10, make control panel 12 rebound in control box 14, make control panel 12 support with switch 13 and lean on, thereby send signal gives PLC, PLC control detection device 5 work carries out the work of discerning to user's fingerprint, only the user presses glass board 2 certain distance, just can control detection device 5 and carry out discernment work, avoid pressing the pressure degree undersize and lead to the fingerprint fuzzy, thereby prevent to exert an influence to the precision of discernment, thereby the reliability of equipment has been improved.

As shown in fig. 4, the connecting assembly further includes two guide units, the two guide units are respectively disposed on the two perforated inner walls, the guide units include two guide blocks 16, the two guide blocks 16 are symmetrically disposed about the perforated axis, one end of each guide block 16 is connected with the perforated inner wall, the guide rod 8 is provided with two sliding grooves, the other ends of the two guide blocks 16 are respectively disposed inside the two sliding grooves, the guide blocks 16 are matched with the sliding grooves, and the guide blocks 16 are slidably connected with the sliding grooves.

When the connecting block 7 moves along the guide rod 8, the guide block 16 can be driven to move in the sliding groove, so that the moving direction of the connecting block 7 is limited, the connecting block 7 cannot rotate when moving back and forth on the guide rod 8, and the stability of the connecting block 7 during moving is improved.

As preferred, for the transmission power, the drive assembly includes second bearing, ball screw pair 18, drive unit and two branch 17, bottom in the main part 1 is equipped with the breach, the second bearing sets up the inside at the breach, the one end of the screw rod of ball screw pair 18 is connected with the inner circle of second bearing, be equipped with the limiting plate on the other end of the screw rod of ball screw pair 18, the one end of two branch 17 is articulated with the below of two connecting blocks 7 respectively, the other end of branch 17 is articulated with ball screw pair 18's nut, ball screw pair 18's screw rod passes through drive unit and is connected with (mixing) shaft 21.

Preferably, in order to drive the stirring shaft 21 to rotate, the transmission unit comprises a belt 20 and three transmission wheels 19, wherein one transmission wheel 19 is connected with the screw of the ball screw pair 18, the other two transmission wheels 19 are respectively connected with the two stirring shafts 21, and the three transmission wheels 19 are connected through the belt 20.

When the two connecting blocks 7 move away from each other, the nut of the ball screw pair 18 can be driven by the supporting rod 17 to move upwards along the screw of the ball screw pair 18, so that the screw of the ball screw pair 18 rotates, the driving wheel 19 connected with the screw is driven to rotate, the other driving wheel 19 can be driven by the belt 20 to rotate, the stirring shaft 21 rotates, the stirring plate 22 has the function of stirring the air in the main body 1, the circulation speed of the air in the main body 1 is increased, the heat dissipation effect is improved, the moving distances of the two connecting blocks 7 are equal due to the connection of the two connecting blocks 7 and the same nut, so that the detection device 5 cannot be in an inclined state when moving, the glass plate 2 cannot impact the main body 1 due to inclination, and the damage of the glass plate 2 is avoided, the influence on the fingerprint identification work is prevented, and the reliability of the equipment is improved.

When fingerprint identification is carried out, the glass plate 2 is manually pressed, so that the glass plate 2 moves downwards, the first spring 3 and the extension pipe 4 are compressed, air in the extension pipe 4 enters the inside of the main body 1, air can be discharged from the second through hole, the detection device 5 moves downwards, the connecting assembly is driven to work, the control rod 11 is driven to move upwards, the control panel 12 moves upwards in the control box 14, the control panel 12 is abutted against the switch 13, a signal is sent to the PLC, the PLC controls the detection device 5 to work to identify the fingerprint of a user, the detection device 5 can be controlled to carry out identification work only when the user presses the glass plate 2 for a certain distance, the phenomenon that the fingerprint is fuzzy due to the fact that the pressing degree is too small is avoided, the influence on identification precision is prevented, and the reliability of equipment is improved, when control panel 12 rebound, the air in control box 14 can be followed blast pipe 15 and discharged, after detecting and accomplishing, under the effect of the restoring force of first spring 3, when driving glass board 2 rebound, make control panel 12 can the rebound, make the inside of main part 1 inside air through inlet port entering control box 14, make the inside atmospheric pressure of main part 1 reduce, the outside air of being convenient for gets into the inside of main part 1 through first through-hole after through filter screen 23 edulcoration, thereby can accelerate the velocity of flow of main part 1 inside and outside air, make the inside heat of main part 1 can be taken away from in the main part 1, thereby realized giving main part 1 inside radiating function, the radiating effect has been promoted, the practicality is higher. When coupling assembling work, can drive transmission assembly work, make (mixing) shaft 21 rotate, thereby make stirring board 22 rotate, make stirring board 22 carry out the function of stirring to the air of main part 1 inside, thereby accelerated the circulation speed of the air of main part 1 inside, promote radiating effect, avoid main part 1 inside overheated and damage detection device 5, thereby prevent to produce the influence to fingerprint identification work, thereby improved the reliability of equipment.

Compared with the prior art, the fingerprint identification entrance guard equipment with the heat dissipation function can control the detection device 5 to perform identification work only by pressing the glass plate 2 for a certain distance through the detection mechanism, so as to avoid fingerprint blurring caused by over-low pressing force, thereby preventing influence on identification precision, thereby improving the reliability of the equipment, and also realizing the function that the detection device 5 can work only when needing to be detected, thereby reducing the electric energy used by the detection device 5, improving the environmental protection of the equipment, compared with the existing detection mechanism, the detection mechanism and the heat dissipation mechanism are integrated into a linkage mechanism, without electric drive, and being more environment-friendly, the flowing speed of air inside the main body 1 is accelerated through the heat dissipation mechanism, the heat dissipation effect is improved, the detection device 5 is prevented from being damaged due to overheating inside the main body 1, thereby preventing influence on the fingerprint identification work, thereby the reliability of equipment has been improved, compare with current heat dissipation mechanism, this heat dissipation mechanism not only has transmitted power through the drive assembly who sets up, can also make the displacement of two connecting blocks 7 equal, make detection device 5 the state of slope can not appear when removing, make glass board 2 can not be because of the slope on striking main part 1, avoid causing the damage of glass board 2, prevent to produce the influence to fingerprint identification work, thereby the reliability of equipment has been improved.

In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.