阅读说明：本技术 一种具有测温功能且能够减小测量误差的智能手环 (Smart wristband with temperature measurement function and capable of reducing measurement error ) 是由 余寒懿 于 2021-07-22 设计创作，主要内容包括：本发明涉及智能手环技术领域,且公开了一种具有测温功能且能够减小测量误差的智能手环,包括壳体,所述壳体的内底壁焊接有温检机构和固定轨板,所述固定轨板的顶部滑动连接有驱动机构,所述壳体的左右内壁均插接有进气管,所述壳体的内底壁插接有两个吹气管,所述壳体的内底壁焊接有两个固定圆板,两个所述进气管的内部均活动连接有排水机构。通过转动齿轮往复转动时通过弧形轨槽和滑块带动活动杆和活塞上下移动,活塞向上移动时会将外界的空气通过进气管吸进内腔中,活塞向下移动时会将内腔中的气体通过吹气管压出,缓慢吹向温检机构与手腕接触的位置,对手腕降温,从而达到了测温前对手腕进行降温的效果,减小了测温误差。(The invention relates to the technical field of intelligent bracelets, and discloses an intelligent bracelet with a temperature measuring function and capable of reducing measurement errors. The movable rod and the piston are driven to move up and down through the arc-shaped rail groove and the sliding block when the rotating gear rotates in a reciprocating mode, external air can be sucked into the inner cavity through the air inlet pipe when the piston moves upwards, air in the inner cavity can be extruded out through the air blowing pipe when the piston moves downwards, the air is slowly blown to the position where the temperature detection mechanism is in contact with the wrist, the temperature of the wrist is reduced, the effect of reducing the temperature of the wrist before temperature measurement is achieved, and temperature measurement errors are reduced.)

1. The utility model provides an intelligence bracelet with temperature measurement function just can reduce measuring error, includes casing (1), its characterized in that: the utility model discloses a heat-insulation pipeline, including casing (1), inner bottom wall welded temperature detection mechanism (2) and fixed rail board (3), the top sliding connection of fixed rail board (3) has actuating mechanism (4), inner wall all pegs graft about casing (1) has intake pipe (5), the inner bottom wall of casing (1) is pegged graft and is had two gas blow pipes (6), the inner bottom wall welded temperature detection of casing (1) has two fixed plectanes (7), two the equal swing joint in inside of intake pipe (5) has drainage mechanism (8).

2. The smart bracelet with temperature measurement function and capable of reducing measurement error according to claim 1, characterized in that: actuating mechanism (4) are including activity frame (41), the inside rotation of activity frame (41) is connected with action wheel (42), activity rack (43) have all been welded to the left and right sides of activity frame (41).

3. The smart bracelet with temperature measurement function and capable of reducing measurement error according to claim 2, characterized in that: teeth are welded on the upper inner wall and the lower inner wall of the movable frame (41), teeth are arranged at the top of the driving wheel (42), and the driving wheel (42) is intermittently meshed with the upper inner wall and the lower inner wall of the movable frame (41).

4. The smart bracelet with temperature measurement function and capable of reducing measurement error according to claim 2, characterized in that: inner chamber (71), two have all been seted up to the inside below of fixed plectane (7) inner chamber (71), two the interior back wall of fixed plectane (7) all rotates and is connected with rotating gear (72) and follows driving wheel (73), arc rail groove (74) have been seted up in the front of rotating gear (72), the inside sliding connection of inner chamber (71) has piston (75), the top welding of piston (75) has movable rod (76), the inner wall welding has arc magnetic sheet (77) that the magnetic pole is opposite around fixed plectane (7), two it has guide bar (78) all to weld from one side that driving wheel (73) carried on the back mutually.

5. The smart bracelet with temperature measurement function and capable of reducing measurement error according to claim 4, characterized in that: the two movable racks (43) are respectively inserted into one opposite side of the two fixed circular plates (7) and meshed with the rotating gear (72), the sliding blocks are welded on the back of the two movable rods (76), the two sliding blocks are respectively located in the two arc-shaped rail grooves (74), the rotating gear (72) is meshed with the driven wheel (73), the guide bar (78) is located between the two arc-shaped magnetic plates (77), the two air inlet pipes (5) are respectively communicated with one opposite sides of the two inner cavities (71), the two air blowing pipes (6) are respectively communicated with one opposite sides of the two inner cavities (71), one-way valves are respectively arranged inside the two air blowing pipes (6), and air outlets of the two air blowing pipes (6) face the contact position of the temperature detection mechanism (2) and the wrist.

6. The smart bracelet with temperature measurement function and capable of reducing measurement error according to claim 4, characterized in that: two drainage mechanism (8) all include drain bar (81), two all weld magnetic path (82) on one side in opposite directions of drain bar (81), two one side in opposite directions of magnetic path (82) all is provided with electro-magnet (83).

7. The smart bracelet of claim 6 having temperature measurement function and capable of reducing measurement error, wherein: two drain bar (81) one side in opposite directions all welds there is the extension spring, it has the wire that forms closed circuit to establish ties between electro-magnet (83) and guide rod (78), the internal diameter that intake pipe (5) are close to casing (1) part is greater than the internal diameter of keeping away from casing (1) part, the internal diameter looks adaptation of casing (1) part is kept away from with intake pipe (5) to the external diameter of drain bar (81).

Technical Field

The invention relates to the technical field of smart bracelets, in particular to a smart bracelet with a temperature measuring function and capable of reducing measuring errors.

Background

The intelligent bracelet is a wear-type smart machine, and the user wears the back and can take notes real-time data such as exercise, sleep and diet among the daily life to with these data and cell-phone, dull and stereotyped synchronous, play the effect of leading healthy life through data, intelligent bracelet is as the scientific and technological product of being prepared for user's attention, and the powerful function that its possessed is just quietly permeating and changing people's life on the silence.

The temperature that is used for measuring user's body temperature is examined device is equipped with on partial intelligent bracelet, generally be fixed in the bottom of bracelet, with user's wrist contact, because the bracelet is worn for a long time to the user, the heat that bracelet internal element sent can pass through the casing and transmit for the wrist, the bracelet is long-time and the wrist contact, the heat is difficult to the diffusion, the temperature that leads to the wrist can be higher than human natural temperature, and then there is the error when making the temperature examine device temperature measurement, from this we have proposed one kind have the temperature measurement function and can reduce measuring error's intelligent bracelet.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention aims to provide the intelligent bracelet with the temperature measuring function and capable of reducing the measuring error, and the intelligent bracelet has the advantages of reducing the error in temperature measurement and avoiding water from entering the interior of the bracelet through the air inlet pipe.

The invention adopts the following technical scheme for realizing the technical purpose: the utility model provides an intelligence bracelet with temperature measurement function just can reduce measuring error, includes the casing, the inner bottom wall welding of casing has warm mechanism and fixed rail board of examining, the top sliding connection of fixed rail board has actuating mechanism, the inner wall all pegs graft and has the intake pipe about the casing, the inner bottom wall of casing is pegged graft and is had two gas blow pipes, the inner bottom wall welding of casing has two fixed plectanes, two the equal swing joint in inside of intake pipe has drainage mechanism.

As optimization, actuating mechanism includes the movable frame, the inside rotation of movable frame is connected with the action wheel, the movable rack has all been welded to the left and right sides of movable frame.

As an optimization, teeth are welded on the upper inner wall and the lower inner wall of the movable frame, the teeth are arranged at the top of the driving wheel, the driving wheel is intermittently meshed with the upper inner wall and the lower inner wall of the movable frame, and the driving wheel drives the movable frame to reciprocate left and right through alternate meshing with the upper inner wall and the lower inner wall of the movable frame when rotating.

As optimization, two the inner chamber has all been seted up to the inside below of fixed plectane, two the interior back wall of fixed plectane all rotates and is connected with the rotating gear and follows the driving wheel, arc rail groove has been seted up in rotating gear's front, the inside sliding connection of inner chamber has the piston, the top welding of piston has the movable rod, the inner wall welding has the arc magnetic sheet that the magnetic pole is opposite around fixed plectane, two all weld the guide rod from one side that the driving wheel carried on the back mutually.

Preferably, the two movable racks are respectively inserted into one side of the two fixed circular plates, and are engaged with the rotating gear, the movable racks drive the rotating gear to rotate in a reciprocating manner when reciprocating left and right, the sliding blocks are welded on the back surfaces of the two movable rods, the two sliding blocks are respectively positioned in the two arc-shaped rail grooves, the rotating gear drives the movable rods to move up and down in a reciprocating manner through the arc-shaped rail grooves and the sliding blocks when reciprocating, the rotating gear is engaged with the driven wheel, the guide rod is positioned between the two arc-shaped magnetic plates, the guide rod is driven by the driven wheel to move between the arc-shaped magnetic plates in a cutting magnetic induction line manner when rotating the rotating gear, so that induced current is generated on the guide rod, the direction of the current is changed along with the change of the moving direction of the guide rod, the two air inlet pipes are respectively communicated with one side of the two inner cavities opposite to each other, and the two air blowing pipes are respectively communicated with one side of the two inner cavities opposite to each other, and the air outlets of the two air blowing pipes face the contact part of the temperature detection mechanism and the wrist.

As optimization, the two drainage mechanisms comprise drainage plates, magnetic blocks are welded on one opposite sides of the drainage plates, and electromagnets are arranged on the opposite sides of the magnetic blocks.

As optimization, two the extension spring has all been welded to one side in opposite directions of drain bar, plays the effect that drives the drain bar and remove to keeping away from casing one side, it has the wire that forms closed loop to establish ties between electro-magnet and the guide bar, can make the electro-magnet produce magnetism when the guide bar circular telegram, and the magnetism of electro-magnet changes along with the change of current direction on the guide bar, the internal diameter that the intake pipe is close to casing part is greater than the internal diameter of keeping away from casing part, casing part's internal diameter looks adaptation is kept away from to the external diameter of drain bar and intake pipe.

Compared with the prior art, the invention provides the intelligent bracelet with the temperature measurement function and capable of reducing the measurement error, and the intelligent bracelet has the following beneficial effects:

1. the intelligent bracelet with the temperature measurement function and capable of reducing measurement errors controls the rotation of the driving wheel when the body temperature of a user needs to be measured, the driving wheel drives the movable frame to move left and right by being alternately engaged with teeth on the upper inner wall and the lower inner wall of the movable frame when rotating, further drives the movable rack to move left and right, the movable rack drives the rotating gear to rotate in a reciprocating manner when moving left and right, the rotating gear drives the movable rod and the piston to move up and down by the arc-shaped rail groove and the sliding block when rotating in the reciprocating manner, the piston sucks external air into the inner cavity through the air inlet pipe when moving upwards, the gas in the inner cavity is extruded out through the air blowing pipe when moving downwards, the gas is slowly blown to the position where the temperature detection mechanism is contacted with the wrist to cool the wrist, thereby the effect of cooling the wrist before temperature measurement is achieved, the phenomenon that the bracelet is contacted with the wrist for a long time and heat is difficult to diffuse is avoided, the temperature of the wrist is possibly higher than the natural temperature of the human body, and the temperature measurement error is reduced.

2. The intelligent bracelet with the temperature measurement function and capable of reducing measurement errors drives a piston to move upwards by clockwise rotation of a rotating gear to suck outside air into an inner cavity from an air inlet pipe, the rotating gear also drives a driven wheel to rotate anticlockwise, the driven wheel drives a guide bar to move upwards between arc-shaped magnetic plates to cut magnetic induction lines, forward induced current is generated on the guide bar, the electromagnet generates magnetism the same as that of a magnetic block, the electromagnet generates repulsion force on the magnetic block due to the repulsion of like poles, the drain plate is driven to rapidly move towards the direction close to a shell, the drain plate moves to the position with larger inner diameter of the air inlet pipe to enable the air inlet pipe to be communicated with the inner cavity, when the piston is driven by anticlockwise rotation of the rotating gear to move downwards, the rotating gear drives the driven wheel to rotate reversely, the guide bar downwards between the arc-shaped magnetic plates to cut the magnetic induction lines, and reverse induced current is generated on the guide bar, the electro-magnet produces the magnetism opposite with the magnetic path this moment, and then attract the magnetic path to drive the drain bar through the electro-magnet and get back to the less position of intake pipe internal diameter, make intake pipe and inner chamber disconnection intercommunication, the gas blow pipe of being convenient for blows, simultaneously when the bracelet is stained with water, water gets into and can be blocked by the drain bar in the intake pipe, avoid water to get into in the inner chamber, when the drain bar gets into the great position of internal diameter from the less position of intake pipe internal diameter fast at every turn, can discharge the water in the intake pipe through the air current, thereby reached and avoided the bracelet to be stained with after, water gets into the effect in the casing from the intake pipe, the waterproof performance of bracelet has been improved.

Drawings

FIG. 1 is a schematic front view of the overall structure of the present invention;

FIG. 2 is an enlarged view of the fixed circular plate of FIG. 1 according to the present invention;

FIG. 3 is an enlarged view of the driven wheel of FIG. 2 according to the present invention;

FIG. 4 is an enlarged view of the portion A of FIG. 1 according to the present invention.

In the figure: 1. a housing; 2. a temperature detection mechanism; 3. fixing a rail plate; 4. a drive mechanism; 41. a movable frame; 42. a driving wheel; 43. a movable rack; 5. an air inlet pipe; 6. an air blowing pipe; 7. fixing the circular plate; 71. an inner cavity; 72. a rotating gear; 73. a driven wheel; 74. an arc-shaped rail groove; 75. a piston; 76. a movable rod; 77. an arc-shaped magnetic plate; 78. a guide rod; 8. a drainage mechanism; 81. a drain plate; 82. a magnetic block; 83. an electromagnet.

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.

The first embodiment is as follows:

please refer to fig. 1-3, an intelligent bracelet with temperature measurement function and capable of reducing measurement error comprises a shell 1, a temperature detection mechanism 2 and a fixed rail plate 3 are welded on the inner bottom wall of the shell 1, a driving mechanism 4 is slidably connected on the top of the fixed rail plate 3, air inlet pipes 5 are inserted on the left inner wall and the right inner wall of the shell 1, two air blowing pipes 6 are inserted on the inner bottom wall of the shell 1, two fixed circular plates 7 are welded on the inner bottom wall of the shell 1, and a drainage mechanism 8 is movably connected inside the two air inlet pipes 5.

The driving mechanism 4 comprises a movable frame 41, a driving wheel 42 is rotatably connected inside the movable frame 41, movable racks 43 are welded on the left side and the right side of the movable frame 41, teeth are welded on the upper inner wall and the lower inner wall of the movable frame 41, teeth are arranged on the top of the driving wheel 42, the driving wheel 42 is intermittently meshed with the upper inner wall and the lower inner wall of the movable frame 41, the driving wheel 42 drives the movable frame 41 to reciprocate left and right by alternately meshing with the upper inner wall and the lower inner wall of the movable frame 41 when rotating, inner cavities 71 are formed below the insides of two fixed circular plates 7, rotating gears 72 and driven wheels 73 are rotatably connected on the inner rear walls of the two fixed circular plates 7, an arc-shaped rail groove 74 is formed in the front face of the rotating gear 72, a piston 75 is slidably connected inside the inner cavity 71, a movable rod 76 is welded on the top of the piston 75, the two movable racks 43 are respectively inserted into one opposite sides of the two fixed circular plates 7 and meshed with the rotating gears 72, the movable rack 43 drives the movable gear 72 to reciprocate during left-right reciprocating movement, sliders are welded on the back faces of the two movable rods 76, the two sliders are located in the two arc-shaped rail grooves 74 respectively, the movable rods 76 are driven to reciprocate up and down through the arc-shaped rail grooves 74 and the sliders during reciprocating movement of the movable gear 72, the movable gear 72 is meshed with the driven wheel 73, the two air inlet pipes 5 are communicated with one sides of the two inner cavities 71 in a back-to-back mode respectively, the two air blowing pipes 6 are communicated with one sides of the two inner cavities 71 in opposite directions respectively, one-way valves are arranged inside the two air blowing pipes 6, and air outlets of the two air blowing pipes 6 face the contact position of the temperature detection mechanism 2 and the wrist.

When the body temperature of a user needs to be measured, the driving wheel 42 is controlled to rotate, the driving wheel 42 drives the movable frame 41 to move left and right through being alternately engaged with teeth on the upper inner wall and the lower inner wall of the movable frame 41 when rotating, so that the movable frame 41 drives the movable rack 43 to move left and right, the movable rack 43 drives the rotating gear 72 to rotate back and forth when moving left and right, the rotating gear 72 drives the movable rod 76 and the piston 75 to move up and down through the arc-shaped rail groove 74 and the sliding block when rotating back and forth, when the piston 75 moves up, external air is sucked into the inner cavity 71 through the air inlet pipe 5, when the piston 75 moves down, air in the inner cavity 71 is extruded through the air blowing pipe 6 and is slowly blown to the position where the temperature detection mechanism 2 is contacted with the wrist, the temperature of the wrist is reduced, thereby the effect of reducing the temperature of the wrist before temperature measurement is achieved, the phenomenon that the wrist is contacted with the wrist for a long time and heat is difficult to diffuse is avoided, and the temperature of the wrist may be higher than the natural temperature of the human body, the temperature measurement error is reduced.

Example two:

please refer to fig. 1-4, an intelligent bracelet with temperature measurement function and capable of reducing measurement error comprises a shell 1, a temperature detection mechanism 2 and a fixed rail plate 3 are welded on the inner bottom wall of the shell 1, a driving mechanism 4 is slidably connected on the top of the fixed rail plate 3, air inlet pipes 5 are inserted on the left inner wall and the right inner wall of the shell 1, two air blowing pipes 6 are inserted on the inner bottom wall of the shell 1, two fixed circular plates 7 are welded on the inner bottom wall of the shell 1, and a drainage mechanism 8 is movably connected inside the two air inlet pipes 5.

Inner cavities 71 are respectively arranged below the insides of the two fixed circular plates 7, the inner rear walls of the two fixed circular plates 7 are respectively and rotatably connected with a rotating gear 72 and a driven wheel 73, an arc-shaped rail groove 74 is arranged on the front side of the rotating gear 72, a piston 75 is slidably connected inside the inner cavity 71, a movable rod 76 is welded on the top of the piston 75, arc-shaped magnetic plates 77 with opposite magnetic poles are welded on the front and rear inner walls of the fixed circular plates 7, guide rods 78 are welded on the opposite sides of the two driven wheels 73, two movable racks 43 are respectively inserted on the opposite sides of the two fixed circular plates 7 and are meshed with the rotating gear 72, the movable racks 43 drive the rotating gear 72 to rotate in a reciprocating manner when reciprocating left and right, sliders are respectively welded on the back sides of the two movable rods 76 and are respectively positioned in the two arc-shaped rail grooves 74, the movable rods 76 are driven to move up and down in a reciprocating manner by the arc-shaped rail grooves 74 and the sliders when the rotating gear 72 rotates in a reciprocating manner, the rotating gear 72 is engaged with the driven gear 73, the guide bar 78 is positioned between the two arc-shaped magnetic plates 77, when the rotating gear 72 rotates, the driven gear 73 drives the guide bar 78 to cut magnetic induction lines between the arc-shaped magnetic plates 77, so that induced current is generated on the guide bar 78, the direction of the current changes along with the change of the movement direction of the guide bar 78, the two air inlet pipes 5 are respectively communicated with one sides of the two inner cavities 71, which are opposite to each other, the two air blowing pipes 6 are respectively communicated with one sides of the two inner cavities 71, check valves are respectively arranged inside the two air blowing pipes 6, air outlets of the two air blowing pipes 6 face the contact part of the temperature detection mechanism 2 and the wrist, the two drainage mechanisms 8 respectively comprise drainage plates 81, 82 are respectively welded on the opposite sides of the two drainage plates 81, electromagnets 83 are respectively arranged on the opposite sides of the two magnets 82, tension springs are respectively welded on the opposite sides of the two drainage plates 81, the water draining plate 81 is driven to move towards one side far away from the shell 1, a conducting wire forming a closed loop is connected in series between the electromagnet 83 and the guide rod 78, the electromagnet 83 can generate magnetism when the guide rod 78 is electrified, the magnetism of the electromagnet 83 changes along with the change of the current direction on the guide rod 78, the inner diameter of the part, close to the shell 1, of the air inlet pipe 5 is larger than the inner diameter of the part, far away from the shell 1, of the air inlet pipe 5, and the outer diameter of the water draining plate 81 is matched with the inner diameter of the part, far away from the shell 1, of the air inlet pipe 5.

When the rotating gear 72 rotates clockwise to drive the piston 75 to move upwards to suck outside air into the inner cavity 71 from the air inlet pipe 5, the rotating gear 72 also drives the driven wheel 73 to rotate anticlockwise, the driven wheel 73 drives the guide rod 78 to move upwards between the arc-shaped magnetic plates 77 to cut magnetic induction lines, so that positive induction current is generated on the guide rod 78, the electromagnet 83 generates magnetism the same as that of the magnetic blocks 82, the electromagnet 83 generates repulsion force on the magnetic blocks 82 due to the repulsion of like poles, the drain plate 81 is driven to move rapidly towards the direction close to the shell 1, the drain plate 81 moves to the position with larger inner diameter of the air inlet pipe 5, so that the air inlet pipe 5 is communicated with the inner cavity 71, when the rotating gear 72 rotates anticlockwise to drive the piston 75 to move downwards, the rotating gear 72 drives the driven wheel 73 to rotate reversely, so that the guide rod 78 performs downward cutting magnetic induction line movement between the arc-shaped magnetic plates 77, and reverse induction current is generated on the guide rod 78, at this moment, the electromagnet 83 generates magnetism opposite to the magnetic block 82, and then attract the magnetic block 82 to drive the drain plate 81 to return to the position with smaller inner diameter of the air inlet pipe 5 through the electromagnet 83, the air inlet pipe 5 is disconnected and communicated with the inner cavity 71, the air blowing pipe 6 is convenient to blow air, and simultaneously when the bracelet is stained with water, water can be blocked by the drain plate 81 in the air inlet pipe 5 when entering the position with larger inner diameter from the position with smaller inner diameter of the air inlet pipe 5, avoid water to enter the inner cavity 71, when the drain plate 81 enters the position with larger inner diameter from the position with smaller inner diameter of the air inlet pipe 5 fast at each time, water in the air inlet pipe 5 can be discharged through air flow, thereby the bracelet is prevented from being stained with water, water enters the shell 1 from the air inlet pipe 5, and the waterproof performance of the bracelet is improved.

Example three:

please refer to fig. 1-4, an intelligent bracelet with temperature measurement function and capable of reducing measurement error comprises a shell 1, a temperature detection mechanism 2 and a fixed rail plate 3 are welded on the inner bottom wall of the shell 1, a driving mechanism 4 is slidably connected on the top of the fixed rail plate 3, air inlet pipes 5 are inserted on the left inner wall and the right inner wall of the shell 1, two air blowing pipes 6 are inserted on the inner bottom wall of the shell 1, two fixed circular plates 7 are welded on the inner bottom wall of the shell 1, and a drainage mechanism 8 is movably connected inside the two air inlet pipes 5.

The driving mechanism 4 comprises a movable frame 41, a driving wheel 42 is rotatably connected inside the movable frame 41, movable racks 43 are welded on the left side and the right side of the movable frame 41, teeth are welded on the upper inner wall and the lower inner wall of the movable frame 41, teeth are arranged on the top of the driving wheel 42, the driving wheel 42 is intermittently meshed with the upper inner wall and the lower inner wall of the movable frame 41, the driving wheel 42 is driven to reciprocate left and right by alternately meshing with the upper inner wall and the lower inner wall of the movable frame 41 when rotating, inner cavities 71 are respectively arranged below the inner parts of two fixed circular plates 7, the inner rear walls of the two fixed circular plates 7 are respectively rotatably connected with a rotating gear 72 and a driven wheel 73, an arc-shaped rail groove 74 is arranged on the front surface of the rotating gear 72, a piston 75 is slidably connected inside the inner cavity 71, a movable rod 76 is welded on the top of the piston 75, arc-shaped magnetic plates 77 with opposite magnetic poles are welded on the front inner walls and the rear walls of the fixed circular plates 7, guide rods 78 are welded on the opposite sides of the two driven wheels 73, two movable racks 43 are respectively inserted into one opposite sides of the two fixed circular plates 7 and meshed with the rotating gear 72, the movable racks 43 drive the rotating gear 72 to reciprocate when reciprocating left and right, sliders are welded on the back surfaces of the two movable rods 76 and are respectively positioned in the two arc-shaped rail grooves 74, the movable rods 76 are driven to reciprocate up and down by the arc-shaped rail grooves 74 and the sliders when the rotating gear 72 reciprocates, the rotating gear 72 is meshed with the driven wheel 73, the guide rod 78 is positioned between the two arc-shaped magnetic plates 77, the guide rod 78 is driven by the driven wheel 73 to cut magnetic induction lines between the arc-shaped magnetic plates 77 when the rotating gear 72 rotates, so that induction currents are generated on the guide rod 78, the direction of the current changes along with the change of the moving direction of the guide rod 78, the two air inlet pipes 5 are respectively communicated with one opposite sides of the two inner cavities 71, the two air blowing pipes 6 are respectively communicated with one opposite sides of the two inner cavities 71, the two air blowing pipes 6 are internally provided with one-way valves, and air outlets of the two air blowing pipes 6 face the contact part of the temperature detection mechanism 2 and the wrist.

Two drainage mechanism 8 all include drain bar 81, two drain bar 81 one side in opposite directions all have welded magnetic path 82, two magnetic path 82 one side in opposite directions all are provided with electro-magnet 83, two drain bar 81 one side in opposite directions all have welded the extension spring, play and drive drain bar 81 and to keeping away from the effect that casing 1 one side removed, it has the wire that forms closed loop to establish ties between electro-magnet 83 and the guide bar 78, can make electro-magnet 83 produce magnetism when the guide bar 78 circular telegram, the magnetism of electro-magnet 83 changes along with the change of current direction on the guide bar 78, the internal diameter that intake pipe 5 is close to casing 1 part is greater than the internal diameter of keeping away from casing 1 part, the external diameter of drain bar 81 and the internal diameter looks adaptation that casing 1 part was kept away from to intake pipe 5.

The working principle is as follows: when the body temperature of a user needs to be measured, the driving wheel 42 is controlled to rotate, the driving wheel 42 drives the movable frame 41 to move left and right through being alternately engaged with teeth on the upper inner wall and the lower inner wall of the movable frame 41 when rotating, so that the movable frame 41 drives the movable rack 43 to move left and right, the movable rack 43 drives the rotating gear 72 to rotate back and forth when moving left and right, the rotating gear 72 drives the movable rod 76 and the piston 75 to move up and down through the arc-shaped rail groove 74 and the sliding block when rotating back and forth, when the piston 75 moves up, external air is sucked into the inner cavity 71 through the air inlet pipe 5, when the piston 75 moves down, air in the inner cavity 71 is extruded through the air blowing pipe 6 and is slowly blown to the position where the temperature detection mechanism 2 is contacted with the wrist, the temperature of the wrist is reduced, thereby the effect of reducing the temperature of the wrist before temperature measurement is achieved, the phenomenon that the wrist is contacted with the wrist for a long time and heat is difficult to diffuse is avoided, and the temperature of the wrist may be higher than the natural temperature of the human body, the temperature measurement error is reduced.

When the rotating gear 72 rotates clockwise to drive the piston 75 to move upwards to suck outside air into the inner cavity 71 from the air inlet pipe 5, the rotating gear 72 also drives the driven wheel 73 to rotate anticlockwise, the driven wheel 73 drives the guide rod 78 to move upwards between the arc-shaped magnetic plates 77 to cut magnetic induction lines, so that positive induction current is generated on the guide rod 78, the electromagnet 83 generates magnetism the same as that of the magnetic blocks 82, the electromagnet 83 generates repulsion force on the magnetic blocks 82 due to the repulsion of like poles, the drain plate 81 is driven to move rapidly towards the direction close to the shell 1, the drain plate 81 moves to the position with larger inner diameter of the air inlet pipe 5, so that the air inlet pipe 5 is communicated with the inner cavity 71, when the rotating gear 72 rotates anticlockwise to drive the piston 75 to move downwards, the rotating gear 72 drives the driven wheel 73 to rotate reversely, so that the guide rod 78 performs downward cutting magnetic induction line movement between the arc-shaped magnetic plates 77, and reverse induction current is generated on the guide rod 78, at this moment, the electromagnet 83 generates magnetism opposite to the magnetic block 82, and then attract the magnetic block 82 to drive the drain plate 81 to return to the position with smaller inner diameter of the air inlet pipe 5 through the electromagnet 83, the air inlet pipe 5 is disconnected and communicated with the inner cavity 71, the air blowing pipe 6 is convenient to blow air, and simultaneously when the bracelet is stained with water, water can be blocked by the drain plate 81 in the air inlet pipe 5 when entering the position with larger inner diameter from the position with smaller inner diameter of the air inlet pipe 5, avoid water to enter the inner cavity 71, when the drain plate 81 enters the position with larger inner diameter from the position with smaller inner diameter of the air inlet pipe 5 fast at each time, water in the air inlet pipe 5 can be discharged through air flow, thereby the bracelet is prevented from being stained with water, water enters the shell 1 from the air inlet pipe 5, and the waterproof performance of the bracelet is improved.

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