CN111150186A

CN111150186A - A intelligent bracelet that is used for having of Alzheimer's disease anti-drop function

Info

Publication number: CN111150186A
Application number: CN202010036347.7A
Authority: CN
Inventors: 廖生武
Original assignee: Shenzhen Lightlink Guangtong Technology Co Ltd
Current assignee: Shenzhen Lightlink Guangtong Technology Co Ltd
Priority date: 2020-01-14
Filing date: 2020-01-14
Publication date: 2020-05-15

Abstract

The invention relates to an intelligent bracelet with an anti-drop function for Alzheimer's disease, which comprises a main body, a watchband, a fixing mechanism and a display mechanism, wherein the fixing mechanism comprises a connecting block, a fixing block, a driving assembly, a fixing rod, a first spring and a fingerprint identification device, the display mechanism comprises a moving assembly, a display screen, a sealing plug, a connecting plate and two transmission assemblies, the intelligent bracelet with the anti-drop function for Alzheimer's disease can be taken down after identity verification passes through the fixing mechanism, the phenomenon that a patient drops the bracelet by himself is avoided, and therefore the work of locating the position of the patient cannot be carried out, the reliability of the bracelet is improved, information such as the identity of the user can be conveniently checked through the display mechanism, and accordingly, the intelligent bracelet can be contacted with family members as soon as possible.

Description

A intelligent bracelet that is used for having of Alzheimer's disease anti-drop function

Technical Field

The invention relates to the field of Alzheimer's disease, in particular to an intelligent bracelet with an anti-drop function for Alzheimer's disease.

Background

Alzheimer's disease is a progressive degenerative disease of the nervous system with occult onset. Clinically, the comprehensive dementia manifestations such as dysmnesia, aphasia, misuse, agnosia, visual space skill damage, executive dysfunction and personality and behavior change are characterized, the etiology is unknown so far, and nowadays, patients usually wear intelligent bracelets to perform positioning work, thereby preventing the patients from missing.

Present intelligent bracelet is worn at patient's wrist department usually, and the patient drops the bracelet by oneself easily to can't carry out effectual location work to the patient, thereby reduced the reliability of current intelligent bracelet, moreover, current intelligent bracelet does not generally provide patient's information, leads to the unable timely and family members to gain the contact, greatly reduced the practicality of current intelligent bracelet.

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 intelligent bracelet with the anti-drop function for the Alzheimer disease is provided.

The technical scheme adopted by the invention for solving the technical problems is as follows: an intelligent bracelet with an anti-drop function for Alzheimer's disease comprises a main body, a watchband, a fixing mechanism and a display mechanism, wherein one end of the watchband is fixedly connected with one side of the main body, the other end of the watchband is connected with the other side of the main body through the fixing mechanism, the display mechanism is arranged inside the main body, a GPS (global positioning system) positioning module, an antenna, a wireless signal transceiving module and a PLC (programmable logic controller) are arranged in the main body, and the GPS positioning module, the antenna and the wireless signal transceiving module are all electrically connected with the PLC;

the fixing mechanism comprises a connecting block, a fixing block, a driving component, a fixing rod, a first spring and a fingerprint identification device, the connecting block is fixedly connected with the watchband, the fixing block is fixed at the bottom in the main body, one side of the fixing block, which is close to the connecting block, is provided with a notch, the connecting block is arranged in the notch, the connecting block is matched with the notch, a notch is arranged above the connecting block, a small hole is arranged above the fixing block, the small hole is communicated with the notch, one end of the fixing rod is arranged in the notch, the fixing rod is matched with the notch, the other end of the fixing rod penetrates through the small hole and is arranged above the fixing block, two ends of the first spring are respectively connected with the top in the main body and the other end of the fixing rod, the first spring is in a compressed state, the driving component is arranged in the main, the fingerprint identification device is fixed on the main body and is electrically connected with the PLC;

display mechanism is including removing subassembly, display screen, sealing plug, connecting plate and two transmission assembly, it sets up between two transmission assembly to remove the subassembly, it is connected with transmission assembly to remove the subassembly, the both ends of connecting plate are connected with two transmission assembly respectively, the one end fixed connection of connecting plate and display screen, the other end and the sealing plug fixed connection of display screen, the main part with watchband vertically one side be equipped with first opening, the sealing plug matches with first opening, the sealing plug supports with first open-ended inner wall and supports, the display screen is connected with the PLC electricity.

Preferably, in order to drive the fixing rod to move, the driving assembly comprises an electromagnet and an iron block, the electromagnet is fixed at the top in the main body, the iron block is fixedly connected with one end, far away from the notch, of the fixing rod, the electromagnet is opposite to the iron block, and the electromagnet is electrically connected with the PLC.

Preferably, in order to limit the moving direction of the fixing rod, the fixing mechanism further comprises a limiting rod, the limiting rod is vertically fixed at the top of the main body, a through hole is formed in the fixing rod, the limiting rod penetrates through the through hole, the limiting rod is matched with the through hole, the through hole is square, and the fixing rod is connected with the limiting rod in a sliding mode.

Preferably, in order to facilitate the fixing rod to be inserted into the notch, one end of the fixing rod close to the notch is provided with a chamfer.

Preferably, in order to drive the display screen to move, the moving assembly comprises a cover plate, a moving rod, a second spring and two fixing plates, a second opening is formed in the upper portion of the main body, the cover plate is matched with the second opening, the inner wall of the cover plate is abutted against the inner wall of the second opening, the two fixing plates are arranged on two sides of the cover plate respectively, one end of each fixing plate is fixedly connected with the main body, the other end of each fixing plate is abutted against the upper portion of the cover plate, the moving rod is vertically fixed below the cover plate, protruding teeth are uniformly fixed on two sides of the moving rod and connected with the transmission assembly, and two ends of the second spring are connected with the bottom of the moving rod and the bottom of the bottom in the main body respectively.

Preferably, in order to drive the connecting plate to move, the transmission assembly comprises a screw rod, a gear and two bearings, the bearings are fixed inside the main body, two ends of the screw rod are respectively and fixedly connected with inner rings of the two bearings, the gear is fixed on the screw rod and meshed with the convex teeth, two ends of the connecting plate are respectively sleeved on the two screw rods, and threads matched with the screw rod are arranged at the connecting part of the connecting plate and the screw rod.

Preferably, in order to limit the moving direction of the moving rod, the moving assembly further comprises a guide rod, the guide rod is vertically fixed at the bottom inside the main body, a through hole is formed in the moving rod, the top end of the guide rod is arranged inside the through hole, and the guide rod is connected with the moving rod in a sliding mode.

As preferred, stability when in order to improve the carriage release lever and remove, the removal subassembly still includes two sand grips, and two sand grips set up about fenestrate axis symmetry, the sand grip is fixed on fenestrate inner wall, be equipped with two recesses on the guide bar, recess and sand grip one-to-one, the sand grip sets up the inside at the recess, sand grip and recess sliding connection.

As preferred, for the moving direction of restriction connecting plate, display mechanism still includes two slides, and two slides set up the both sides at the connecting plate respectively, the both ends of slide respectively with the inner wall fixed connection of the both sides of main part, one side that is close to the connecting plate of slide is equipped with the spout, spout and lead screw parallel arrangement, the both ends of connecting plate set up the inside at two spouts respectively, the connecting plate matches with the spout, connecting plate and spout sliding connection.

Preferably, in order to avoid the connecting plate from being separated from the sliding groove, the sliding groove is a dovetail groove.

The intelligent bracelet with the anti-drop function for the Alzheimer's disease has the advantages that the bracelet can be taken down only after the identity authentication passes through the fixing mechanism, so that the phenomenon that a patient drops the bracelet by himself is avoided, and the work of positioning the position of the patient cannot be carried out, so that the reliability of the bracelet is improved.

Drawings

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

Fig. 1 is a schematic structural diagram of an intelligent bracelet with an anti-drop function for alzheimer's disease according to the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

fig. 3 is a schematic structural diagram of a display mechanism of an intelligent bracelet with an anti-drop function for alzheimer's disease according to the present invention;

FIG. 4 is an enlarged view of portion B of FIG. 3;

in the figure: 1. the watch comprises a watchband, 2 parts of a main body, 3 parts of a fingerprint identification device, 4 parts of a connecting block, 5 parts of a fixing block, 6 parts of an electromagnet, 7 parts of an iron block, 8 parts of a fixing rod, 9 parts of a first spring, 10 parts of a limiting rod, 11 parts of a fixing plate, 12 parts of a cover plate, 13 parts of a moving rod, 14 parts of a second spring, 15 parts of a gear, 16 parts of a screw rod, 17 parts of a connecting plate, 18 parts of a display screen, 19 parts of a sealing plug, 20 parts of a slide way, 21 parts of a guide rod and 22 parts.

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, an intelligent bracelet with an anti-drop function for alzheimer's disease comprises a main body 2, a watchband 1, a fixing mechanism and a display mechanism, wherein one end of the watchband 1 is fixedly connected with one side of the main body 2, the other end of the watchband 1 is connected with the other side of the main body 2 through the fixing mechanism, the display mechanism is arranged inside the main body 2, a GPS positioning module, an antenna, a wireless signal transceiver module and a PLC are arranged in the main body 2, and the GPS positioning module, the antenna and the wireless signal transceiver module are all electrically connected with the PLC;

a PLC, i.e., a programmable logic controller, which employs a programmable memory for storing therein a program, executing instructions for user-oriented operations such as logic operation, sequence control, timing, counting, and arithmetic operation, and controlling various types of machines or production processes through digital or analog input/output, is essentially a computer dedicated for industrial control, has a hardware structure substantially the same as that of a microcomputer, and is generally used for data processing and instruction reception and output for realizing central control.

This an intelligent bracelet that is used for intelligence bracelet that has anti-drop function of Alzheimer's disease passes through fixed establishment, just can take off the bracelet after authentication passes through, avoids the patient to come off the bracelet by oneself to can't fix a position the work of patient's position, thereby improved the reliability of bracelet, through display mechanism, can be convenient for look over information such as user's identity, thereby can be as early as possible obtain the contact with family members.

As shown in fig. 1-2, the fixing mechanism includes a connecting block 4, a fixing block 5, a driving assembly, a fixing rod 8, a first spring 9 and a fingerprint identification device 3, the connecting block 4 is fixedly connected with the watchband 1, the fixing block 5 is fixed at the bottom of the main body 2, a notch is arranged at one side of the fixing block 5 close to the connecting block 4, the connecting block 4 is arranged inside the notch, the connecting block 4 is matched with the notch, a notch is arranged above the connecting block 4, a small hole is arranged above the fixing block 5 and is communicated with the notch, one end of the fixing rod 8 is arranged inside the notch, the fixing rod 8 is matched with the notch, the other end of the fixing rod 8 passes through the small hole and is arranged above the fixing block 5, two ends of the first spring 9 are respectively connected with the top of the main body 2 and the other end of the, the first spring 9 is in a compressed state, the driving assembly is arranged inside the main body 2 and connected with the other end of the fixing rod 8, the fingerprint identification device 3 is fixed on the main body 2, and the fingerprint identification device 3 is electrically connected with the PLC;

in fact, after the wrist was worn to the bracelet, dead lever 8 inlays always in the inside of breach, thereby the position of fixed connection piece 4, make the fastening that watchband 1 can be firmly on the wrist, when the bracelet was taken off to needs, need family members to carry out the fingerprint identification authentication, the authentication passes through the back, send signal for PLC, PLC control drive assembly work, drive dead lever 8 rebound, compress first spring 9 simultaneously, thereby make dead lever 8 no longer imbed the inside of breach, be convenient for fixed block 5 breaks away from with connecting block 4, thereby be convenient for take off the bracelet, through authentication, can avoid the patient to come off the bracelet by oneself, thereby the work of patient's position can't be fixed a position, thereby the reliability of bracelet has been improved.

As shown in fig. 1 and 3, the display mechanism includes a moving assembly, a display screen 18, a sealing plug 19, a connecting plate 17 and two transmission assemblies, the moving assembly is disposed between the two transmission assemblies, the moving assembly is connected with the transmission assemblies, two ends of the connecting plate 17 are respectively connected with the two transmission assemblies, the connecting plate 17 is fixedly connected with one end of the display screen 18, the other end of the display screen 18 is fixedly connected with the sealing plug 19, a first opening is disposed on one side of the main body 2 perpendicular to the watch band 1, the sealing plug 19 is matched with the first opening, the sealing plug 19 abuts against the inner wall of the first opening, and the display screen 18 is electrically connected with the PLC.

When information such as user's identity need be looked over, the people make removal subassembly work, make two drive assembly work, make connecting plate 17 remove to the direction that is close to first opening, make display screen 18 shift out the outside of main part 2 from first opening part, be convenient for look over information such as user's identity, thereby can contact with family members as early as possible, after looking over, make connecting plate 17 to keeping away from first open-ended square removal through drive assembly, thereby income main part 2's inside with display screen 18, thereby reduced the probability that display screen 18 damaged, and the safety is improved.

Preferably, in order to drive the fixing rod 8 to move, the driving assembly comprises an electromagnet 6 and an iron block 7, the electromagnet 6 is fixed at the top of the main body 2, the iron block 7 is fixedly connected with one end, far away from the notch, of the fixing rod 8, the electromagnet 6 is opposite to the iron block 7, and the electromagnet 6 is electrically connected with the PLC.

When authentication passes through the back, control electro-magnet 6 circular telegram produces a power that attracts iron plate 7 for iron plate 7 moves upwards, thereby drives dead lever 8 rebound, makes dead lever 8 break away from with the breach, and the connecting block 4 of being convenient for breaks away from with fixed block 5, thereby can take off the bracelet.

Preferably, in order to limit the moving direction of the fixing rod 8, the fixing mechanism further comprises a limiting rod 10, the limiting rod 10 is vertically fixed at the top of the main body 2, a through hole is formed in the fixing rod 8, the limiting rod 10 penetrates through the through hole, the limiting rod 10 is matched with the through hole, the through hole is square, and the fixing rod 8 is in sliding connection with the limiting rod 10.

Through setting up gag lever post 10, restricted dead lever 8's moving direction, set up the through-hole into behind the quad slit for dead lever 8 can not take place to rotate when removing, thereby improved the stability when dead lever 8 removes, the inside of the dead lever 8 embedding breach of being convenient for.

Preferably, in order to facilitate the fixing rod 8 to be inserted into the notch, one end of the fixing rod 8 close to the notch is provided with a chamfer.

Preferably, in order to drive the display screen 18 to move, the moving assembly comprises a cover plate 12, a moving rod 13, a second spring 14 and two fixing plates 11, a second opening is formed in the upper portion of the main body 2, the cover plate 12 is matched with the second opening, the inner wall of the cover plate 12 and the inner wall of the second opening are abutted against each other, the two fixing plates 11 are respectively arranged on two sides of the cover plate 12, one end of each fixing plate 11 is fixedly connected with the main body 2, the other end of each fixing plate 11 is abutted against the upper portion of the cover plate 12, the moving rod 13 is vertically fixed below the cover plate 12, convex teeth are uniformly fixed on two sides of the moving rod 13 and connected with the transmission assembly, and two ends of the second spring 14 are respectively connected with the bottom in the main body 2 and the bottom end of the moving rod 13.

Preferably, in order to drive the connecting plate 17 to move, the transmission assembly comprises a screw rod 16, a gear 15 and two bearings, the bearings are fixed inside the main body 2, two ends of the screw rod 16 are respectively and fixedly connected with inner rings of the two bearings, the gear 15 is fixed on the screw rod 16, the gear 15 is meshed with the convex teeth, two ends of the connecting plate 17 are respectively sleeved on the two screw rods 16, and a connecting part of the connecting plate 17 and the screw rod 16 is provided with threads matched with the screw rod 16.

When the user needs to check the identity information of the user, the cover plate 12 is manually pressed, so that the cover plate 12 moves downwards to drive the movable rod 13 to move downwards, at the same time, the second spring 14 is compressed, and the gear 15 is rotated by the engagement of the gear 15 with the convex teeth, thereby driving the screw rod 16 to rotate, causing the connecting plate 17 to move towards the direction close to the first opening, so that the display screen 18 is moved out of the main body 2 from the first opening, thereby facilitating the viewing of the user's identity and other information, so as to be connected with family members as soon as possible, when the user looks over the watch, the cover plate 12 is released, the moving rod 13 is moved upwards by the restoring force of the second spring 14, the gear 15 is rotated reversely, thereby making the connecting plate 17 move towards the square far away from the first opening, thereby taking the display screen 18 into the inside of the main body 2, thereby reducing the probability of damage to the display screen 18 and improving the safety.

As shown in fig. 4, the moving assembly further includes a guide rod 21, the guide rod 21 is vertically fixed at the bottom inside the main body 2, a through hole is formed in the moving rod 13, the top end of the guide rod 21 is arranged inside the through hole, and the guide rod 21 is slidably connected with the moving rod 13.

As preferably, in order to improve the stability when the movable rod 13 moves, the movable assembly further includes two convex strips 22, and two convex strips 22 are symmetrically arranged about the axis of the through hole, and the convex strips 22 are fixed on the inner wall of the through hole, two grooves are formed in the guide rod 21, the grooves correspond to the convex strips 22 one by one, the convex strips 22 are arranged inside the grooves, and the convex strips 22 are slidably connected with the grooves.

Through setting up guide bar 21, having restricted the moving direction of carriage release lever 13, when carriage release lever 13 removed, drive the lug and remove in the recess to stability when having restricted carriage release lever 13 and removing makes carriage release lever 13 can not take place to rotate when removing, thereby avoids carriage release lever 13 slope, influences the meshing of gear 15 and dogtooth, thereby has improved the stability of removal subassembly during operation.

As preferred, for the moving direction of restriction connecting plate 17, display mechanism still includes two slides 20, and two slides 20 set up respectively in the both sides of connecting plate 17, the both ends of slide 20 respectively with the inner wall fixed connection of the both sides of main part 2, one side of slide 20 that is close to connecting plate 17 is equipped with the spout, spout and lead screw 16 parallel arrangement, the both ends of connecting plate 17 set up respectively in the inside of two spouts, connecting plate 17 matches with the spout, connecting plate 17 and spout sliding connection.

Through setting up slide 20, restricted connecting plate 17's moving direction for connecting plate 17 can not take place to rock when moving along lead screw 16, and stability when making connecting plate 17 remove is more stable, thereby stability when having improved display screen 18 and removing.

Preferably, in order to avoid the connection plate 17 from being separated from the slide groove, the slide groove is a dovetail groove.

In fact, after the wrist was worn to the bracelet, dead lever 8 inlays the inside in the breach always, thereby the position of fixed connection piece 4, make the fastening that watchband 1 can be firmly on the wrist, when the bracelet was taken off to needs, need the family members to carry out the fingerprint identification authentication, the authentication passes through the back, send signal gives PLC, PLC control electro-magnet 6 circular telegram, produce a power that attracts iron plate 7, make iron plate 7 upwards remove, thereby drive dead lever 8 rebound, make dead lever 8 break away from with the breach, be convenient for connecting block 4 and fixed block 5 break away from, thereby can take off the bracelet, the bracelet just can be taken off after authentication passes through, thereby can avoid the patient to drop the bracelet by oneself and the work that can't fix a position patient's position, thereby the reliability of bracelet has been improved. When the user needs to check the identity information of the user, the cover plate 12 is manually pressed, so that the cover plate 12 moves downwards to drive the movable rod 13 to move downwards, at the same time, the second spring 14 is compressed, and the gear 15 is rotated by the engagement of the gear 15 with the convex teeth, thereby driving the screw rod 16 to rotate, causing the connecting plate 17 to move towards the direction close to the first opening, so that the display screen 18 is moved out of the main body 2 from the first opening, thereby facilitating the viewing of the user's identity and other information, so as to be connected with family members as soon as possible, when the user looks over the watch, the cover plate 12 is released, the moving rod 13 is moved upwards by the restoring force of the second spring 14, the gear 15 is rotated reversely, thereby making the connecting plate 17 move towards the square far away from the first opening, thereby taking the display screen 18 into the inside of the main body 2, thereby reducing the probability of damage to the display screen 18 and improving the safety.

Compared with the prior art, this an intelligent bracelet that is used for alzheimer's disease to have an anti-drop function passes through fixed establishment, just can take off the bracelet after authentication passes, avoid the patient to come off the bracelet by oneself, thereby can't fix a position the work of patient's position, thereby the reliability of bracelet has been improved, through display mechanism, can be convenient for look over information such as user's identity, thereby can be as early as possible gain contact with family members, compare with current display mechanism, this display mechanism can display screen 18 income main part 2's inside, thereby the probability of display screen 18 damage has been reduced, and the safety is 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.

Claims

1. The intelligent bracelet with the anti-drop function for the Alzheimer's disease is characterized by comprising a main body (2), a watchband (1), a fixing mechanism and a display mechanism, wherein one end of the watchband (1) is fixedly connected with one side of the main body (2), the other end of the watchband (1) is connected with the other side of the main body (2) through the fixing mechanism, the display mechanism is arranged inside the main body (2), a GPS (global positioning system) positioning module, an antenna, a wireless signal receiving and sending module and a PLC (programmable logic controller) are arranged in the main body (2), and the GPS positioning module, the antenna and the wireless signal receiving and sending module are all electrically connected with the PLC;

fixed establishment includes connecting block (4), fixed block (5), drive assembly, dead lever (8), first spring (9) and fingerprint identification device (3), connecting block (4) and watchband (1) fixed connection, the bottom in main part (2) is fixed in fixed block (5), one side that is close to connecting block (4) of fixed block (5) is equipped with the notch, connecting block (4) set up the inside at the notch, connecting block (4) and notch match, the top of connecting block (4) is equipped with the breach, the top of fixed block (5) is equipped with the aperture, aperture and notch intercommunication, the one end of dead lever (8) sets up the inside at the breach, dead lever (8) and breach match, the other end of dead lever (8) passes the aperture and sets up the top at fixed block (5), the both ends of first spring (9) link to each other end with the top in main part (2) and dead lever (8) respectively The first spring (9) is in a compressed state, the driving assembly is arranged inside the main body (2) and connected with the other end of the fixing rod (8), the fingerprint identification device (3) is fixed on the main body (2), and the fingerprint identification device (3) is electrically connected with the PLC;

display mechanism is including removing subassembly, display screen (18), sealing plug (19), connecting plate (17) and two transmission assembly, it sets up between two transmission assembly to remove the subassembly, it is connected with transmission assembly to remove the subassembly, the both ends of connecting plate (17) are connected with two transmission assembly respectively, the one end fixed connection of connecting plate (17) and display screen (18), the other end and sealing plug (19) fixed connection of display screen (18), main part (2) with watchband (1) vertically one side be equipped with first opening, sealing plug (19) match with first opening, support with first open-ended inner wall and lean on, display screen (18) are connected with the PLC electricity.

2. The smart bracelet with anti-drop function for alzheimer's disease according to claim 1, wherein the driving assembly comprises an electromagnet (6) and an iron block (7), the electromagnet (6) is fixed on the top of the main body (2), the iron block (7) is fixedly connected with one end of the fixing rod (8) far away from the notch, the electromagnet (6) is arranged opposite to the iron block (7), and the electromagnet (6) is electrically connected with the PLC.

3. The smart bracelet with anti-drop function for alzheimer's disease according to claim 1, wherein the fixing mechanism further comprises a limiting rod (10), the limiting rod (10) is vertically fixed on the top of the main body (2), a through hole is provided on the fixing rod (8), the limiting rod (10) passes through the through hole, the limiting rod (10) is matched with the through hole, the through hole is square, and the fixing rod (8) is slidably connected with the limiting rod (10).

4. The smart bracelet with anti-drop function for alzheimer's disease according to claim 1, wherein one end of the fixing rod (8) near the gap is provided with a chamfer.

5. The smart bracelet with anti-drop function for Alzheimer's disease according to claim 1, characterized in that the moving component comprises a cover plate (12), a moving rod (13), a second spring (14) and two fixing plates (11), a second opening above the body (2), the cover plate (12) matching with the second opening, the cover plate (12) is abutted against the inner wall of the second opening, the two fixing plates (11) are respectively arranged at two sides of the cover plate (12), one end of the fixed plate (11) is fixedly connected with the main body (2), the other end of the fixed plate (11) is abutted against the upper part of the cover plate (12), the movable rod (13) is vertically fixed below the cover plate (12), convex teeth are uniformly fixed on both sides of the movable rod (13), the convex teeth are connected with the transmission assembly, and two ends of the second spring (14) are respectively connected with the bottom in the main body (2) and the bottom end of the movable rod (13).

6. The smart bracelet with anti-drop function for Alzheimer's disease according to claim 5, wherein the transmission assembly comprises a lead screw (16), a gear (15) and two bearings, the bearings are fixed inside the main body (2), two ends of the lead screw (16) are respectively fixedly connected with inner rings of the two bearings, the gear (15) is fixed on the lead screw (16), the gear (15) is meshed with the convex teeth, two ends of the connecting plate (17) are respectively sleeved on the two lead screws (16), and a connecting part of the connecting plate (17) and the lead screw (16) is provided with a thread matched with the lead screw (16).

7. The smart bracelet with anti-drop function for alzheimer's disease according to claim 6, wherein the moving assembly further comprises a guide bar (21), the guide bar (21) is vertically fixed at the bottom inside the main body (2), the moving bar (13) is provided with a through hole, the top end of the guide bar (21) is arranged inside the through hole, and the guide bar (21) is slidably connected with the moving bar (13).

8. The smart bracelet with anti-drop function for Alzheimer's disease according to claim 7, wherein the moving assembly further comprises two protruding strips (22), the two protruding strips (22) are symmetrically arranged about the axis of the perforation, the protruding strips (22) are fixed on the inner wall of the perforation, two grooves are arranged on the guide rod (21), the grooves correspond to the protruding strips (22) one by one, the protruding strips (22) are arranged inside the grooves, and the protruding strips (22) are slidably connected with the grooves.

9. The smart bracelet with the anti-drop function for alzheimer's disease according to claim 1, wherein the display mechanism further comprises two slide ways (20), the two slide ways (20) are respectively disposed at two sides of the connecting plate (17), two ends of the slide ways (20) are respectively fixedly connected with inner walls of two sides of the main body (2), one side of the slide ways (20) close to the connecting plate (17) is provided with a sliding groove, the sliding groove is disposed in parallel with the screw rod (16), two ends of the connecting plate (17) are respectively disposed inside the two sliding grooves, the connecting plate (17) is matched with the sliding groove, and the connecting plate (17) is slidably connected with the sliding groove.

10. The smart bracelet with drop-off prevention function for alzheimer's disease according to claim 9, wherein the chute is a dovetail groove.