CN216217079U - Thermal imaging fusion machine core - Google Patents

Abstract

The utility model discloses a thermal imaging fusion core, which relates to the technical field of thermal imager assemblies and comprises a thermal imager box body, a blocking cover, a fixing port, an infrared lens and a core assembly, wherein an installation cavity is arranged in the thermal imager box body, the blocking cover abuts against one side of the thermal imager box body, the fixing port is formed in the blocking cover and communicated with the installation cavity, and the infrared lens is connected in the fixing port in a sliding manner. According to the utility model, through the matching of the dismounting mechanism and the heat dissipation mechanism, the problem that one of the infrared lens and the movement assembly of the existing thermal imaging device needs to be replaced simultaneously after being damaged due to the fact that the infrared lens and the movement assembly are mostly of an integrated structure is solved, the effect of quickly dismounting and mounting the infrared lens and the movement assembly is realized, the problems that the service lives of a battery and a device are shortened and the battery and the device are blocked during use due to the fact that most of the existing thermal imaging device are poor in heat dissipation function are solved, and the effect of quickly absorbing and discharging heat is realized.

Description

Thermal imaging fusion machine core

Technical Field

The utility model relates to the technical field of thermal imager assemblies, in particular to a thermal imaging fusion core.

Background

The infrared thermal imager uses an infrared detector and an optical imaging objective lens to receive an infrared radiation energy distribution pattern of a detected target and reflect the infrared radiation energy distribution pattern on a photosensitive element of the infrared detector so as to obtain an infrared thermal image, and the thermal image corresponds to a thermal distribution field on the surface of an object. Traditionally, thermal infrared imagers have been used to convert the invisible infrared energy emitted by an object into a visible thermal image. The different colors on the top of the thermal image represent the different temperatures of the object being measured.

Wherein, the forehead thermometer is simple to operate, but is too close to the target and has low efficiency; the common handheld thermal imager is single infrared thermal imaging, lacks target object details, is not easy to distinguish targets, generally supports temperature measurement application with a short distance, and is not suitable for entrances and exits with large population flow or high risk, so that the thermal imaging infrared imager can be used for detecting and screening the human body temperature of the human body in SSSD in a certain range at the entrances and exits of occasions with large human flow, on one hand, the detection efficiency is improved, the crowded queuing of the human flow is avoided, and meanwhile, the cross infection of viruses and the like is also prevented.

The prior patent (publication number: CN212180101U) discloses a human body temperature measurement thermal imager, which can quickly and reliably fuse information collected by an infrared thermal imaging lens and a visible light lens, has stable and reliable measurement results, is convenient to install and use, reduces the cost, can display the thermal characteristics of a target object in a field range by utilizing the characteristics of the infrared thermal imager, can display the details of a corresponding object, can ensure more accuracy and rapidness, realizes the measurement and screening of the human body temperature in a non-contact mode, is suitable for application scenes with large flow rate of people such as airports, high-speed rails, subways, docks, hospitals, schools, factories and mines, and the like, and is a safe, efficient and economic solution.

However, the human body temperature measurement thermal imager designed above has some disadvantages in practical application: the thermal imager designed as above has the internal infrared thermal imaging lens and the core assembly in an integrated structure, because the machine core component has a certain service life and the infrared thermal imaging lens is easy to knock and crack due to lower surface hardness, therefore, if one of the two is damaged and needs to be replaced, the whole body needs to be replaced, thereby increasing the use cost, and the integral structure is inconvenient to disassemble and maintain, the existing few detachable thermal imaging devices solve the problems, however, in practical applications, the heat dissipation effect is poor, and usually only external air enters the device through the heat dissipation holes to dissipate heat from the internal components, if the internal components of the thermal imaging device cannot be dissipated in time, not only can the service life of the thermal imaging device be greatly shortened, but also the use effect of the thermal imaging device is influenced, and faults or blockage phenomena can often occur.

SUMMERY OF THE UTILITY MODEL

The utility model provides a thermal imaging fusion movement, which solves the problem that an existing thermal imaging device needs to be replaced simultaneously after one of the infrared lenses and movement components is damaged due to the fact that the infrared lenses and the movement components are mostly of an integrally formed structure, achieves the effect of fast dismounting and mounting between the infrared lenses and the movement components, solves the problems that the service lives of batteries and devices are shortened and the batteries and the devices are stuck during use due to the fact that most of the existing thermal imaging devices are poor in heat dissipation function, and achieves the effect of fast absorbing and discharging heat.

In order to solve the above technical problem, the present invention provides a thermal imaging fusion cassette mechanism, including: thermal imager box, shutoff lid, fixed mouthful, infrared camera lens and core assembly, the inside of thermal imager box is provided with the installation cavity, the shutoff lid offsets with one side of thermal imager box, the fixed mouthful is seted up in the shutoff lid, just fixed mouthful link up with the installation cavity mutually, infrared camera lens sliding connection is in fixed mouthful, core assembly sliding connection is in the installation cavity, just core assembly offsets with infrared camera lens, one side fixedly connected with mounting panel that infrared camera lens was kept away from to core assembly, mounting panel sliding connection is in the installation cavity, be provided with dismouting mechanism in the installation cavity.

Preferably, the disassembling and assembling mechanism comprises two fixed blocks, two sliding plates A, two clamping blocks, two supporting springs, two limiting blocks, two limiting ports, two sliding plates B, two abutting rods and two reset springs, wherein the two fixed blocks are respectively and fixedly connected to the top and the bottom of the infrared lens, the fixed blocks abut against one side of the movement assembly, cavities are formed in the fixed blocks, the two sliding plates A are respectively and slidably connected into the two cavities, the two clamping blocks are respectively and fixedly connected to the tops of the two sliding plates A, the two supporting springs are respectively and fixedly connected to the bottoms of the two sliding plates A, the other ends of the supporting springs are fixedly connected into the cavities, the two limiting blocks are symmetrically and fixedly connected to one side of the movement assembly, the limiting blocks are slidably connected with the fixed blocks, the two limiting ports are respectively arranged on one side, opposite to the two limiting blocks, one end of the fixture block, which is far away from the sliding plate A, penetrates through the cavity and is slidably connected in the limiting port, a sliding cavity is arranged in the limiting block, the two sliding plates B are respectively slidably connected in the two sliding cavities, the two abutting rods are respectively and fixedly inserted in the two sliding plates B, one end of the abutting rod penetrates through the sliding cavity and is matched and abutted with one end of the fixture block, the other end of the abutting rod penetrates through the sliding cavity and is fixedly connected with a pressing plate, the two reset springs are respectively sleeved on the two abutting rods, the opposite ends of the two reset springs are respectively and fixedly connected with the opposite sides of the two sliding plates B, the opposite ends of the two reset springs are respectively and fixedly connected in the two sliding cavities, the abutting rod drives the sliding plates B to compress the reset springs to slide in the sliding cavities by pressing the pressing plate downwards, so that one end of the abutting rod abuts against the fixture block to slide out of the limiting port, and then the infrared lens can be separated from the machine core assembly by horizontally pulling the infrared lens, be close to the core assembly through making infrared camera lens level, and make fixture block one side offset with one side of stopper, make the fixture block drive slide A compression supporting spring and slide along the direction of guide bar, when the fixture block lies in with the vertical line with spacing mouthful, supporting spring can push the fixture block in spacing mouthful because of self elasticity this moment can, current thermal imaging device has been solved because of infrared camera lens and most integrated into one piece structures of core assembly, lead to the problem that needs change simultaneously after one of them damages, quick assembly disassembly's effect between infrared camera lens and the core assembly has been realized.

Preferably, still include heat dissipation mechanism, heat dissipation mechanism includes absorber plate, suction fan and radiator-grid, the absorber plate all fixes the setting at the installation intracavity with the suction fan, just the absorber plate is located suction fan's left side, the radiator-grid sets up the one side of keeping away from the shutoff lid at the thermal imager box, the top and the bottom of thermal imager box all are provided with the ventilation net, through setting up the absorber plate, can absorb the heat that battery and device during operation distributed, then cooperation suction fan and radiator-grid, outside the thermal imager box will be adsorbed the heat discharge thermal imager on the absorber plate, solved current thermal imaging device because of most heat dissipation function is relatively poor, lead to battery and device life-span to shorten and appear the problem of blocking when using, realized adsorbing the heat fast and the effect of discharging.

Preferably, the heat absorbing plate is a graphite plate, and the graphite plate has strong heat absorbing capacity, so that the heat absorbing plate is beneficial to quickly absorbing heat generated by the battery and the device.

Preferably, the mounting cavity is symmetrically and fixedly connected with two blocking pieces, the blocking pieces are abutted to the mounting plate, the movement assembly can be limited by arranging the blocking pieces, and when the mounting plate is abutted to the blocking pieces, the infrared lens is just located at the optimal position in the fixing port.

Preferably, a battery and a device are arranged in the installation cavity, and the battery and the device are located on the left side of the heat absorption plate.

Preferably, one side of the blocking cover is symmetrically and threadedly connected with two positioning bolts, the end of each positioning bolt penetrates through the blocking cover and extends into the thermal imager box body, the top and the bottom of the thermal imager box body are respectively and threadedly connected with a stabilizing bolt, and the end of each stabilizing bolt penetrates through the thermal imager box body and extends into the mounting plate, so that the infrared lens and the core assembly can be conveniently taken.

Preferably, the symmetry is pegged graft in the slide A and is had two guide bars, the equal fixed connection in the cavity in both ends of guide bar through setting up the guide bar, can carry on spacingly to slide A's moving direction, prevents that slide A from taking place the problem of slope at gliding in-process.

Compared with the prior art, the thermal imaging fusion movement provided by the utility model has the following beneficial effects:

1. according to the utility model, the pressing plate is pressed downwards, the abutting rod drives the sliding plate B to compress the reset spring to slide in the sliding cavity, one end of the abutting rod abuts against the clamping block to slide out of the limiting opening, then the infrared lens is horizontally pulled to separate the infrared lens from the movement assembly, the infrared lens is horizontally close to the movement assembly, one side of the clamping block abuts against one side of the limiting block, the clamping block drives the sliding plate A to compress the supporting spring and slide along the direction of the guide rod, when the clamping block and the limiting opening are positioned on the same vertical line, the supporting spring can push the clamping block into the limiting opening due to self elasticity, the problem that one of the infrared lens and the movement assembly of the existing thermal imaging device needs to be replaced simultaneously after being damaged due to the fact that the infrared lens and the movement assembly are mostly of an integrated structure is solved, and the effect of quick dismounting and mounting between the infrared lens and the movement assembly is realized.

2. According to the thermal imaging device, the heat absorbing plate is arranged, so that heat emitted by the battery and a device during operation can be absorbed, then the heat absorbed on the heat absorbing plate is discharged out of the thermal imaging system box body by matching with the air suction fan and the heat dissipation net, the problems that the service life of the battery and the device is shortened and the thermal imaging device is blocked during use due to poor heat dissipation function of most of existing thermal imaging devices are solved, the effect of rapidly absorbing and discharging the heat is achieved, the movement assembly can be limited by arranging the blocking piece, when the mounting plate abuts against the blocking piece, the infrared lens is just located at the optimal position in the fixing port, the moving direction of the sliding plate A can be limited by arranging the guide rod, and the sliding plate A is prevented from being inclined in the sliding process.

Drawings

FIG. 1 is a schematic perspective view of the exterior of a thermal imaging fusion engine;

FIG. 2 is a schematic diagram of an internal structure of a thermal imaging fusion core thermal imager box side;

FIG. 3 is an enlarged view taken at A in FIG. 2;

fig. 4 is an enlarged view at B in fig. 2.

Reference numbers in the figures: 1. a thermal imager box body; 2. a blocking cover; 3. a fixed port; 4. an infrared lens; 5. a movement assembly; 6. a fixed block; 7. a sliding plate A; 8. a clamping block; 9. a support spring; 10. a limiting block; 11. a limiting port; 12. a sliding plate B; 13. a support rod; 14. a return spring; 15. batteries and devices; 16. a heat absorbing plate; 17. an air suction fan; 18. a heat-dissipating network.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments; all other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In a first embodiment, shown in fig. 1-4, a thermal imaging fusion engine, comprising: the thermal imager comprises a thermal imager box body 1, a plugging cover 2, a fixed port 3, an infrared lens 4 and a core assembly 5, wherein a mounting cavity is arranged in the thermal imager box body 1, the plugging cover 2 abuts against one side of the thermal imager box body 1, the fixed port 3 is arranged in the plugging cover 2, the fixed port 3 is communicated with the mounting cavity, the infrared lens 4 is slidably connected in the fixed port 3, the core assembly 5 is slidably connected in the mounting cavity, the core assembly 5 abuts against the infrared lens 4, a mounting plate is fixedly connected to one side, away from the infrared lens 4, of the core assembly 5, the mounting plate is slidably connected in the mounting cavity, and a dismounting mechanism is arranged in the mounting cavity;

the disassembling and assembling mechanism comprises two fixed blocks 6, two sliding plates A7, two clamping blocks 8, two supporting springs 9, two limiting blocks 10, two limiting ports 11, two sliding plates B12, two abutting rods 13 and two reset springs 14, wherein the two fixed blocks 6 are respectively and fixedly connected to the top and the bottom of the infrared lens 4, the fixed blocks 6 abut against one side of the movement assembly 5, cavities are arranged inside the fixed blocks 6, the two sliding plates A7 are respectively and slidably connected into the two cavities, the two clamping blocks 8 are respectively and fixedly connected to the top of the two sliding plates A7, the two supporting springs 9 are respectively and fixedly connected to the bottom of the two sliding plates A7, the other ends of the supporting springs 9 are fixedly connected into the cavities, the two limiting blocks 10 are symmetrically and fixedly connected to one side of the movement assembly 5, the limiting blocks 10 are slidably connected with the fixed blocks 6, the two limiting ports 11 are respectively arranged on one side, which is opposite to the two limiting blocks 10, one end of the fixture block 8, which is far away from the sliding plate A7, penetrates through the cavity and is slidably connected in the limiting opening 11, a sliding cavity is arranged inside the limiting block 10, the two sliding plates B12 are respectively slidably connected in the two sliding cavities, the two abutting rods 13 are respectively and fixedly inserted in the two sliding plates B12, one end of the abutting rod 13 penetrates through the sliding cavity and is matched and abutted with one end of the fixture block 8, the other end of the abutting rod 13 penetrates through the sliding cavity and is fixedly connected with a pressing plate, the two return springs 14 are respectively sleeved on the two abutting rods 13, the opposite ends of the two return springs 14 are respectively and fixedly connected with one sides, which are opposite to the two sliding plates B12, the opposite ends of the two return springs 14 are respectively and fixedly connected in the two sliding cavities, the abutting rod 13 drives the sliding plate B12 to compress the return springs 14 to slide in the sliding cavity by pressing the pressing plate downwards, so that one end of the abutting rod 13 abuts against the fixture block 8 to slide out of the limiting opening 11, and then the infrared lens 4 can be separated from the core assembly 5 by horizontally pulling the infrared lens 4, through making infrared camera lens 4 level be close to core assembly 5, and make one side of fixture block 8 offset with one side of stopper 10, make fixture block 8 drive slide A7 compression supporting spring 9 and slide along the direction of guide bar, when fixture block 8 lies in with vertical line with spacing mouthful 11, supporting spring 9 can be because of self elasticity with fixture block 8 push into spacing mouthful 11 in can at this moment, to sum up, it is the integrated into one piece structure because of infrared camera lens 4 and core assembly 5 are big much to have solved current thermal imaging device, lead to the problem that needs the while to be changed after one of them damages, quick assembly disassembly's effect between infrared camera lens 4 and the core assembly 5 has been realized.

In the second embodiment, on the basis of the first embodiment, the heat dissipation device further comprises a heat dissipation mechanism, the heat dissipation mechanism comprises a heat absorption plate 16, an air suction fan 17 and a heat dissipation net 18, the heat absorption plate 16 and the air suction fan 17 are both fixedly arranged in the installation cavity, the heat absorbing plate 16 is positioned at the left side of the air suction fan 17, the heat radiating net 18 is arranged at one side of the thermal imager box body 1 far away from the blocking cover 2, the top and the bottom of the thermal imager box body 1 are both provided with ventilation nets, by arranging the heat absorbing plate 16, the heat emitted by the battery and the device 15 during operation can be absorbed, then the cooperation air suction fan 17 and radiator mesh 18, outside thermal imager box 1 will be adsorbed the heat discharge on the absorber plate 16, to sum up, solved current thermal imaging device because of most heat dissipation function is relatively poor, lead to battery and device 15 life-span to shorten and the problem that the card pauses appears when using, realized adsorbing the effect of exhaust fast to the heat.

In the third embodiment, on the basis of the second embodiment, the heat absorbing plate 16 is a graphite plate, and the graphite plate has a strong heat absorbing capacity, so that the heat generated by the battery and the device 15 can be absorbed quickly.

In the fourth embodiment, on the basis of the first embodiment, two stoppers are symmetrically and fixedly connected in the mounting cavity, the stoppers abut against the mounting plate, the movement assembly 5 can be limited by arranging the stoppers, and when the mounting plate abuts against the stoppers, the infrared lens 4 is just positioned at the optimal position in the fixing port 3.

In the fifth embodiment, on the basis of the second embodiment, the battery and the device 15 are arranged in the installation cavity, and the battery and the device 15 are positioned on the left side of the heat absorbing plate 16.

Sixth embodiment, on the basis of first embodiment, one side symmetry threaded connection of shutoff cover 2 has two positioning bolt, positioning bolt's end trip runs through shutoff cover 2 and extends to in thermal imager box 1, thermal imager box 1's the equal threaded connection in top and bottom has the stabilizing bolt, stabilizing bolt's end runs through thermal imager box 1 and extends to in the mounting panel, at first the rotating positioning bolt, open shutoff cover 2, then the rotating stabilizing bolt, take out infrared lens 4 drive core assembly 5 from thermal imager box 1, conveniently take infrared lens 4 and core assembly 5.

Seventh embodiment, on the basis of first embodiment, two guide rods are symmetrically inserted into the sliding plate a7, two ends of each guide rod are fixedly connected into the cavity, and the guide rods are arranged to limit the moving direction of the sliding plate a7 and prevent the sliding plate a7 from tilting in the sliding process.

The working principle is as follows:

when needing to carry out the dismouting to infrared lens 4 and core assembly 5:

the first step is as follows: firstly, rotating a positioning bolt to open the blocking cover 2, then rotating a stabilizing bolt, and taking out the infrared lens 4 driving the core assembly 5 from the thermal imager box body 1;

the second step is that: then the pressing plate is pressed, the abutting rod 13 drives the sliding plate B12 to compress the return spring 14 to slide in the sliding cavity, one end of the abutting rod 13 abuts against the clamping block 8 to slide out of the limiting opening 11, and then the infrared lens 4 is horizontally pulled to detach the infrared lens 4 from the movement assembly 5;

the third step: the infrared lens 4 is horizontally close to the movement assembly 5, one side of the fixture block 8 abuts against one side of the limiting block 10, the fixture block 8 drives the sliding plate A7 to compress the supporting spring 9 and slide along the direction of the guide rod, when the fixture block 8 and the limiting opening 11 are located on the same vertical line, the supporting spring 9 can push the fixture block 8 into the limiting opening 11 due to self elasticity, and the infrared lens 4 and the movement assembly 5 can be installed.

When heat dissipation is required for the battery and the device 15:

firstly, the heat absorbing plate 16 can absorb heat emitted by the battery and the device 15 during operation, and then the heat absorbed on the heat absorbing plate 16 is exhausted out of the thermal imager box body 1 by matching with the air suction fan 17 and the heat dissipation net 18.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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

Claims (8)

1. A thermal imaging fusion engine comprising: thermal imager box (1), shutoff lid (2), fixed mouthful (3), infrared camera lens (4) and core assembly (5), its characterized in that, the inside of thermal imager box (1) is provided with the installation cavity, shutoff lid (2) offset with one side of thermal imager box (1), establish in shutoff lid (2) fixed mouthful (3), just fixed mouthful (3) link up with the installation cavity mutually, infrared camera lens (4) sliding connection is in fixed mouthful (3), core assembly (5) sliding connection is in the installation cavity, just core assembly (5) offset with infrared camera lens (4), one side fixedly connected with mounting panel of infrared camera lens (4) is kept away from in core assembly (5), mounting panel sliding connection is in the installation cavity, be provided with dismouting mechanism in the installation cavity.

2. A thermal imaging fusion movement according to claim 1, wherein the disassembling and assembling mechanism comprises two fixing blocks (6), two sliding plates A (7), two fixing blocks (8), two supporting springs (9), two limiting blocks (10), two limiting ports (11), two sliding plates B (12), two abutting rods (13) and two return springs (14), the two fixing blocks (6) are respectively and fixedly connected to the top and the bottom of the infrared lens (4), the fixing blocks (6) abut against one side of the movement assembly (5), a cavity is arranged inside the fixing blocks (6), the two sliding plates A (7) are respectively and slidably connected in the two cavities, the two clamping blocks (8) are respectively and fixedly connected to the top of the two sliding plates A (7), the two supporting springs (9) are respectively and fixedly connected to the bottom of the two sliding plates A (7), the other end of the supporting spring (9) is fixedly connected in the cavity, the two limit blocks (10) are symmetrically and fixedly connected on one side of the machine core assembly (5), the limit blocks (10) are connected with the fixed block (6) in a sliding manner, the two limit openings (11) are respectively arranged on one side opposite to the two limit blocks (10), one end, far away from the sliding plate A (7), of the fixture block (8) penetrates through the cavity and is connected in the limit openings (11) in a sliding manner, a sliding cavity is arranged in each limit block (10), the two sliding plates B (12) are respectively connected in the two sliding cavities in a sliding manner, the two abutting rods (13) are respectively and fixedly inserted in the two sliding plates B (12), one end of each abutting rod (13) penetrates through the sliding cavity and is matched and abutted against one end of the fixture block (8), and the other end of each abutting rod (13) penetrates through the sliding cavity and is fixedly connected with the plate, the two return springs (14) are respectively sleeved on the two abutting rods (13), one ends of the two return springs (14) opposite to each other are respectively fixedly connected with one sides of the two sliding plates B (12), and the other ends of the two return springs (14) opposite to each other are respectively fixedly connected in the two sliding cavities.

3. The thermal imaging fusion core according to claim 1, further comprising a heat dissipation mechanism, wherein the heat dissipation mechanism comprises a heat absorbing plate (16), an air suction fan (17) and a heat dissipation net (18), the heat absorbing plate (16) and the air suction fan (17) are both fixedly arranged in the installation cavity, the heat absorbing plate (16) is located on the left side of the air suction fan (17), the heat dissipation net (18) is arranged on one side of the thermal imager box (1) far away from the blocking cover (2), and the top and the bottom of the thermal imager box (1) are both provided with ventilation nets.

4. A thermal imaging fusion engine according to claim 3, wherein said heat absorbing plate (16) is a graphite plate.

5. A thermal imaging fusion cassette mechanism according to claim 1, wherein two stoppers are symmetrically and fixedly attached to the mounting cavity, the stoppers abutting the mounting plate.

6. A thermographic fusion cassette mechanism according to claim 3, wherein a battery and device (15) is arranged in the mounting cavity, said battery and device (15) being located on the left side of the heat sink plate (16).

7. The thermal imaging fusion core according to claim 1, wherein two positioning bolts are symmetrically and threadedly connected to one side of the blocking cover (2), the end of each positioning bolt penetrates through the blocking cover (2) and extends into the thermal imager box (1), the top and the bottom of the thermal imager box (1) are both threadedly connected with a stabilizing bolt, and the end of each stabilizing bolt penetrates through the thermal imager box (1) and extends into the mounting plate.

8. A thermal imaging fusion cassette mechanism according to claim 2, wherein two guide rods are symmetrically inserted into the sliding plate a (7), and both ends of the guide rods are fixedly connected in the cavity.

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