Protective device of portable near-infrared optical imaging system

Abstract

The utility model provides a protection device of a portable near-infrared optical imaging system, which comprises at least one flexible protection shell and a protection drag chain connected with the flexible protection shell, and the flexible protection shell is detachably buckled on the outer part of the connecting end of a host and / or a collector. The protection drag chain which can freely twist or swing is detachably arranged outside the flat cable connected between the connecting ends of the host and / or the collector in a sleeving manner, and the protection drag chain is detachably connected with the flexible protection shell. The flat cable is relatively simple in structure, soft and comfortable in contact with a human body, accurate in data acquisition, convenient to disinfect and clean, capable of avoiding electric leakage and bending of the flat cable, and high in safety coefficient.

Description

Technical Field

[0001] The utility model relates to a protection device, in particular to a protection device for a portable near-infrared optical imaging system which is used in the portable near-infrared optical imaging system. Background Art

[0002] The existing portable near-infrared optical imaging system collector and host use a hard shell, and the two are directly connected together using a flat cable.

[0003] The portable near-infrared optical imaging system currently on the market consists of a transmitter, a detector, a collector and a host, and is used in conjunction with a computer. The collector is connected to the transmitter and the detector through a connecting line, the host is connected to the collector through a flat cable, and the host is connected to the computer through Bluetooth. The collector and the detector are both hard plastic shells, and the host is also a hard shell.

[0004] The working principle of this portable near-infrared optical imaging system is: the computer sends a signal to the host via Bluetooth, the host sends the signal to the collector via a flat cable, the collector sends a signal to the transmitter via a connecting cable, the transmitter starts working, the detector transmits the detected photoelectric signal to the collector via a connecting cable, the collector transmits the signal to the host via a flat cable, and the host sends data to the computer via Bluetooth.

[0005] The disadvantages of this portable near-infrared optical imaging system are as follows: the collector and the host are connected by a flat cable, which is exposed and lacks protection. When worn on the human body, the cable will be twisted and bent, which is easy to cause damage; when worn on the human body, the connecting wires or connections will be damaged, such as leakage, which poses a safety hazard; it needs to be worn on the human body during work, and the human body generates static electricity, which may cause failures at the wiring and damage the equipment; the hard outer shell can easily cause discomfort when in contact with the human body, making it difficult to achieve a relaxed state, resulting in inaccurate collected data; the outer shell is in direct contact with the human body and cannot be replaced, and is difficult to disinfect and clean when used by multiple people; when the device is worn on the human body for exercise, it may fall and collide with the ground or other objects and be damaged because the hard outer shell has poor shock absorption protection. Utility Model Content

[0006] The purpose of the utility model is to overcome the technical problems in the prior art and to provide a protective device for a portable near-infrared optical imaging system which has a relatively simple structure, is soft and comfortable in contact with the human body, collects accurate data, is convenient for disinfection and cleaning, and avoids wiring leakage and bending, and has a high safety factor.

[0007] The utility model discloses a technical solution of a protective device for a portable near-infrared optical imaging system as follows: it comprises at least one flexible protective shell and a protective drag chain connected to the flexible protective shell, wherein the flexible protective shell is releasably buckled on the outside of a host and / or collector connection end, and the protective drag chain which can twist or swing freely by itself is releasably sleeved on the outside of a cable connected between the host and / or collector connection ends, and the protective drag chain is detachably connected to the flexible protective shell.

[0008] The protective device of the portable near-infrared optical imaging system of the utility model can also be:

[0009] The flexible protective shell includes a host protective shell and a collector protective shell. The host protective shell is removably protectively buckled on the outside of the host connection end, and the collector protective shell is removably protectively buckled on the outside of the collector connection end. The protective drag chain is removably sleeved on the outside of the cable whose two ends are respectively connected to the host connection end and the collector connection end. The two ends of the protective drag chain are detachably connected to the host protective shell and the collector protective shell.

[0010] The flexible protective shells are all of a half-enclosed structure, and a mounting opening is provided on the flexible protective shell. The half-enclosed portion of the flexible protective shell can be releasably fastened to the outside of the host and / or collector connection end through the mounting opening.

[0011] The host protective shell and / or collector protective shell includes two upper and lower angular shells and a main connecting piece connecting the rear sides of the two angular shells. The angular shells and the main connecting piece are integrally formed or fixedly connected. The installation opening is formed at the front side of the angular shells. The angular shells can be releasably fastened to the host connection end and / or the outside of the collector protective shell.

[0012] At least the top and / or bottom of the angular enclosure is a concave angular shape.

[0013] The main connecting piece is provided with an arc-shaped notch at a position away from the connection between the protection drag chain and the host protection shell and / or the collector protection shell.

[0014] A connecting plate is provided at the end of the flexible protective shell, and the end of the protective drag chain is detachably fixedly connected to the connecting plate.

[0015] The protective drag chain includes at least three chain buckles which are hingedly connected in sequence from top to bottom, and drag chain baffles are provided on both sides of the chain buckle. The cable is releasably passed through the internal space clamped by the drag chain baffles on both sides, and the end portions of the chain buckles which are hinged in sequence from end to end are detachably fixedly connected to the ends of the flexible protective shell.

[0016] The front portion of the chain buckle is provided with a hinge hole, and the front portion of the chain buckle is hinged to the rear portion of the chain buckle located in front of it through the hinge hole and a hinge axis, the front portion of the frontmost chain buckle is detachably fixedly connected to the flexible protective shell, and the rear portion of the rearmost chain buckle is detachably fixedly connected to the flexible protective shell.

[0017] The flexible protective shell and the protective drag chain are both made of flexible insulating material.

[0018] The utility model discloses a protective device for a portable near-infrared optical imaging system, comprising at least one flexible protective shell and a protective drag chain connected to the flexible protective shell, wherein the flexible protective shell can be releasably buckled on the outside of the host and / or collector connection end, and the protective drag chain, which can be freely twisted or swung by itself, can be releasably sleeved on the outside of the cable connected between the host and / or collector connection end, and the protective drag chain is detachably connected to the flexible protective shell. In this way, the flexible protective shell itself is flexible, so when the user uses the portable near-infrared optical imaging system, the outside of the host and the external connection end of the collector are both wrapped and buckled by the flexible protective shell, and the human body or skin contacts the soft flexible protective shell, so the user feels comfortable and does not feel the hard shell in the prior art. Moreover, because the user feels comfortable, it is easier to be in a relaxed state and can concentrate on the test, so the data collected by the collector is more accurate, which improves the overall accuracy of the portable near-infrared optical imaging system. In addition, due to the use of the flexible protective shell, the connection between the cable and the outside of the host connection end and / or the collector connection end will move flexibly with the swing of the cable, thereby avoiding damage to the connection between the host connection end and the collector connection end and the cable, thereby avoiding leakage and other situations, and improving safety performance. At the same time, due to the presence of the flexible protective shell, when the portable near-infrared optical imaging system is worn on the human body, the human body generates static electricity, which causes a fault at the wiring point, thereby avoiding damage to the portable near-infrared optical imaging system equipment, and effectively extending the service life of the portable near-infrared optical imaging system. Furthermore, the protective drag chain with a protective function is set on the outside of the cable, and the protective drag chain can twist or swing freely by itself, so it can swing with the swing of the cable, which not only protects the cable from contacting the user's body and skin, but also protects the cable, avoiding damage to the cable or the host connection end and the collector connection end, which affects the overall service life of the portable near-infrared optical imaging system. Moreover, since the shells of the host and the collector are not replaceable, they are worn on the user's body when in use. After multiple people touch them, residual body fluids or other substances will breed bacteria, which is difficult to clean and has hygiene problems. However, the flexible protective shell and the protective drag chain can be easily disassembled and cleaned and disinfected, solving the cleaning and hygiene problems. Moreover, the provision of the flexible protective shell and the protective drag chain can effectively improve the shock resistance of the overall portable near-infrared optical imaging system, and effectively protect the host, the cable, the collector, etc. when they are inevitably bumped during transportation or testing.Therefore, compared with the prior art, the protective device of the portable near-infrared optical imaging system of the utility model has the following advantages: relatively simple structure, soft and comfortable contact with the human body, accurate data collection, convenient disinfection and cleaning, while avoiding wiring leakage and bending, and high safety factor. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the structure of the host connection end of the protective device embodiment of the utility model portable near-infrared optical imaging system;

[0020] Figure 2 Schematic diagram of the protective device embodiment of the utility model portable near-infrared optical imaging system

[0021] Figure 3 A top view of an embodiment of a protective device for a portable near-infrared optical imaging system of the utility model.

[0022] Figure 4 A three-dimensional diagram of a host protection shell of an embodiment of a protection device for a portable near-infrared optical imaging system of the utility model.

[0023] Figure 5 A front view of a host protection shell of an embodiment of a protection device for a portable near-infrared optical imaging system of the utility model.

[0024] Figure 6 A schematic diagram of a collector protection housing of an embodiment of a protective device for a portable near-infrared optical imaging system of the utility model.

[0025] Figure 7 A front view of a collector protection housing of an embodiment of a protection device for a portable near-infrared optical imaging system of the utility model.

[0026] Figure 8 Schematic diagram of a protection drag chain of an embodiment of a protection device for a portable near-infrared optical imaging system of the utility model.

[0027] Fig. 9 Schematic diagram of the position of the protection drag chain and the wiring arrangement of the embodiment of the protection device of the portable near-infrared optical imaging system of the utility model.

[0028] Fig.10 A schematic diagram of the buckling structure of the host connection part and the host protection shell of the embodiment of the protective device of the portable near-infrared optical imaging system of the utility model.

[0029] Description of the figure number:

[0030] 1…Host connection end 2…Protective drag chain 3…Host protective shell 4…Collector protective shell

[0031] 5…Installation opening 6…Angular shell 7…Main connecting piece 8…Arcuate notch

[0032] 9…Connecting plate 10…Chain buckle 11…Drag chain baffle 12…Cable DETAILED DESCRIPTION

[0033] The present invention will be further described in detail below with reference to the accompanying drawings and in combination with specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0034] The utility model is a protective device for a portable near-infrared optical imaging system, please refer to Figures 1 to 10The relevant figures include at least one flexible protective shell and a protective drag chain 2 connected to the flexible protective shell. The flexible protective shell can be releasably buckled on the outside of the host and / or collector connection end. The protective drag chain 2, which can twist or swing freely by itself, can be releasably sleeved on the outside of the cable 12 connected between the host and / or collector connection ends. The protective drag chain 2 is detachably connected to the flexible protective shell. In this way, the flexible protective shell itself is flexible, so when the user uses the portable near-infrared optical imaging system, the outside of the host and the external connection end of the collector are wrapped and buckled by the flexible protective shell, and the human body or skin contacts the soft flexible protective shell, so the user feels comfortable and does not feel the hard shell in the prior art. And because the user feels comfortable, it is easier to be in a relaxed state and can concentrate on the test, so the data collected by the collector is more accurate, which improves the overall accuracy of the portable near-infrared optical imaging system. In addition, due to the use of the flexible protective shell, the connection between the cable 12 and the outside of the host connection terminal 1 and / or the collector connection terminal will flexibly move with the swing of the cable 12, avoiding damage to the connection between the host connection terminal 1 and the collector connection terminal and the cable 12, thereby avoiding leakage and other situations, and improving safety performance. At the same time, due to the presence of the flexible protective shell, when the portable near-infrared optical imaging system is worn on the human body, the human body generates static electricity and causes a fault at the wiring point, thereby avoiding damage to the portable near-infrared optical imaging system equipment, and effectively extending the service life of the portable near-infrared optical imaging system. In addition, the protective drag chain 2 with a protective function is set on the outside of the cable 12, and the protective drag chain 2 can twist or swing freely by itself, so it can swing with the swing of the cable 12, which not only protects the cable 12 from contacting the user's body and skin, but also protects the cable 12, avoiding damage to the cable 12 or the host connection terminal 1 and the collector connection terminal, affecting the overall service life of the portable near-infrared optical imaging system. Moreover, since the shells of the host and the collector are not replaceable, they are worn on the user's body when in use. After multiple people touch them, residual body fluids or other substances will breed bacteria, which is difficult to clean and has hygiene problems. However, the flexible protective shell and the protective drag chain 2 can be easily disassembled and cleaned and disinfected, solving the cleaning and hygiene problems. Moreover, the provision of the flexible protective shell and the protective drag chain 2 can effectively improve the shock resistance of the overall portable near-infrared optical imaging system, and effectively protect the host, the flat cable 12, the collector, etc. when they are inevitably bumped during transportation or testing.Therefore, compared with the prior art, the protective device of the portable near-infrared optical imaging system of the utility model has the following advantages: relatively simple structure, soft and comfortable contact with the human body, accurate data collection, convenient disinfection and cleaning, and avoidance of leakage and bending of the flat cable 12, with a high safety factor.

[0035] The utility model is a protective device for a portable near-infrared optical imaging system, please refer to Figures 1 to 10In the relevant figures, on the basis of the previous technical solution, the flexible protective shell includes a host protective shell 3 and a collector protective shell 4, the host protective shell 3 is releasably buckled on the outside of the host connection end 1, the collector protective shell 4 is releasably buckled on the outside of the collector connection end, the protective drag chain 2 is releasably sleeved on the outside of the cable 12 whose two ends are respectively connected to the host connection end 1 and the collector connection end, and the two ends of the protective drag chain 2 are detachably connected to the host protective shell 3 and the collector protective shell 4. In this way, the flexible protective shell includes two, one is the host protective shell 3 buckled on the outside of the host connection end 1, and the other is the collector protective shell 4 arranged on the outside of the collector connection end. Both protective shells are flexible protective shells, which protect the connection between the host connection terminal 1 and the flat cable 12, and also protect the connection between the collector connection terminal and the flat cable 12, so as to prevent the host connection terminal 1 and the collector connection terminal from being bent and broken multiple times during wearing and use, causing dangers such as leakage. At the same time, the flexibility makes the user feel more comfortable, the experience is better, and the test data is more accurate. The above-described advantages provide all-round protection for the portable near-infrared optical imaging system and effectively extend its service life. A protective device for a portable near-infrared optical imaging system of the utility model is a further preferred technical solution based on the previous technical solution: the flexible protective shells are all semi-enclosed structures, and an installation opening 5 is provided on the flexible protective shell. The semi-enclosed part of the flexible protective shell can be releasably fastened to the outside of the host and / or collector connection terminal through the installation opening 5. The advantage of the semi-enclosed structure of the host protective shell 3 is that it saves materials, and the semi-enclosed structure makes the overall host protective shell 3 more flexible, easier to install and disassemble. The installation opening 5 can be easily set on the outside of the host connection end 1 and / or the collector connection end and snapped on the outside of the host connection end 1 and / or the collector connection end to protect these positions, while avoiding bending damage at the connection of these positions, and the flexible connection ensures that the user feels more comfortable. A protective device for a portable near-infrared optical imaging system of the utility model is further preferred on the basis of the previous technical solution as follows: the host protective shell 3 and / or the collector protective shell 4 include two upper and lower angular shells 6 and a main connecting piece 7 connecting the rear sides of the two angular shells 6, the angular shells 6 and the main connecting piece 7 are integrally formed or fixedly connected, the installation opening 5 is formed at the front side of the angular shell 6, and the angular shell 6 can be releasably snapped on the outside of the host connection end 1 and / or the collector protective shell 4.In this way, during the installation process, the upper and lower angular shells 6 are opened by hand. Because they are made of flexible materials, the upper and lower angular shells 6 are separated from each other, and the position is vacated. The host protective shell 3 is moved to the vicinity of the outside of the host connection end 1 and the outside of the collector connection end that need to be wrapped, and then the outside of the host connection end 1 and the outside of the collector connection end enter the host protective shell 3 and the collector protective shell 4 through the installation opening 5, and then the upper and lower two angular shells 6 are loosened. Under the elastic action, the two angular shells 6 and the main connecting piece 7 return to their original positions, and the outside of the host connection end 1 and the outside of the collector connection end are wrapped and buckled to achieve buckling. When the host protective shell 3 and the collector protective shell 4 need to be replaced, the upper and lower angular shells 6 are pinched by hand to open them outward, and then they are removed from the outside of the host connection end 1 and the outside of the collector connection end. Therefore, it is easy to install and disassemble, convenient to replace, and the later maintenance cost is low. A protective device for a portable near-infrared optical imaging system of the utility model, based on the previous technical solution, further preferred technical solution is: at least the top and / or bottom of the angular shell 6 is a concave angle. In this way, the concave angle can just accommodate the protruding parts of the outside of the host connection end 1 and the outside of the collector connection end, and clamp these protruding parts, so that the flexible protective shell is sleeved and buckled with the outside of the host connection end 1 and the outside of the collector connection end more firmly. A protective device for a portable near-infrared optical imaging system of the utility model, based on the previous technical solution, can also be: the main connecting piece 7 is provided with an arc-shaped notch 8 at a position away from the connection between the protective drag chain 2 and the host protective shell 3 and / or the collector protective shell 4. The purpose of providing the arc-shaped notch 8 is to make it easier to break apart the upper and lower angular shells 6 of the host protective shell 3, and to effectively prevent stress concentration, so as to prevent the host protective shell 3 from becoming brittle and cracking in winter.

[0036] The protective device of a portable near-infrared optical imaging system of the utility model can also be as follows on the basis of the previous technical solution: a connecting plate 9 is provided at the end of the flexible protective shell, and the end of the protective drag chain 2 is detachably fixedly connected to the connecting plate 9. A separate connecting plate 9 is provided to facilitate the connection between the protective drag chain 2 and the flexible protective shell. The connection method can be a detachable fixed connection through a threaded connection between a bolt and a nut, or a detachable connection between the two can be achieved by a snap-fit ​​fixation between a buckle and a card. As long as the protective drag chain 2 and the flexible protective shell can be detachably fixed, it will suffice.

[0037] The protective device of a portable near-infrared optical imaging system of the utility model can be, on the basis of the previous technical solution, as follows: the protective drag chain 2 includes at least three chain buckles 10 which are hingedly connected in sequence from top to bottom, and the chain buckles 10 are provided with drag chain baffles 11 on both sides, and the cable 12 is releasably inserted into the internal space clamped by the chain baffles 11 on both sides, and the end portions of the chain buckles 10 which are hinged in sequence from end to end are respectively detachably fixedly connected to the ends of the flexible protective shell. In this way, a whole protective drag chain 2 can be formed by a plurality of chain buckles 10 which are hinged in sequence from end to end, and the length of the protective drag chain 2 can be increased or decreased according to the length of the cable 12 connecting the host connection end 1 and the collector connection end, which is more conducive to protecting the cable 12 and avoiding the generation of static electricity or leakage of the cable 12 during use. At the same time, the drag chain baffles 11 arranged on both sides of the chain buckle 10 can form a nearly closed space. Multiple chain buckles 10 and multiple drag chain baffles 11 form a nearly closed space to accommodate the cable 12. Moreover, since the chain buckles 10 are hinged at the head and tail, each chain buckle 10 on the entire protective drag chain 2 can be freely twisted or swung at a certain angle to adapt to the twisting and bending of the cable 12 during use and changes in related conditions. Avoid the cable 12 from being bent and damaged, and avoid the cable 12 from directly contacting the user's skin with sweat to cause leakage or conduction. At the same time, the chain buckles 10 at the head and tail ends of the entire protective drag chain 2 are detachably connected to the host protective shell 3 and the collector protective shell 4 respectively. As for the specific detachable connection method, it can be a connection of bolts and nuts, or it can be a connection of buckles and bayonet. The utility model is a protective device for a portable near-infrared optical imaging system. Based on the previous technical solution, a further preferred technical solution is as follows: a hinge hole is provided at the front of the chain buckle 10, and the front of the chain buckle 10 is hinged to the rear of the chain buckle 10 located in front of it through the hinge hole and the hinge shaft. The front of the frontmost chain buckle 10 is detachably fixedly connected to the flexible protective shell, and the rear of the rearmost chain buckle 10 is detachably fixedly connected to the flexible protective shell. In this way, the hinge shaft is inserted into the hinge hole to hinge the front of the chain buckle 10 with the rear of the chain buckle 10 located in front of it. At the same time, the front and rear ends of the chain buckle 10 are detachably connected to the host protective shell 3 and the collector protective shell 4, respectively, or the connection is completed by detachably fixing with the connecting plate 9.

[0038] The utility model is a protective device for a portable near-infrared optical imaging system, please refer to Figures 1 to 10In the relevant figures, on the basis of the previous technical solution, it can also be that: the flexible protective shell and the protective drag chain 2 are both made of flexible insulating materials. Such flexible protective shell and the protective drag chain 2 are both soft, and the insulating material effectively avoids the occurrence of static electricity and leakage of the cable 12 or the connection end, thereby improving the safety of the overall portable near-infrared optical imaging system. A further preferred technical solution is that the flexible protective shell and the protective drag chain 2 are both made of TPU material by 3D printing. TPU material is also called thermoplastic polyurethane elastomer or thermoplastic polyurethane rubber. Its advantage is that the hardness is just right. It will not be too soft to cause it to easily slide off the outside of the host connection end 1 and the outside of the collector connection end, and it will not be too hard to achieve the effect of soft bending protection. And it is also relatively easy to manufacture and shape. Of course, other materials can also be used, such as TPE (thermoplastic elastomer), etc., but it is more preferably made of TPU material.

[0039] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0040] The above examples of the utility model are described in detail, but the above contents are only preferred embodiments of the utility model and cannot be considered to limit the scope of implementation of the utility model. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection created by the utility model.

Claims

1. A protective device for a portable near-infrared optical imaging system, characterized in that: It includes at least one flexible protective shell and a protective drag chain connected to the flexible protective shell. The flexible protective shell can be releasably buckled on the outside of the host and / or collector connection end. The protective drag chain, which can twist or swing freely by itself, can be releasably sleeved on the outside of the cable connected between the host and / or collector connection ends. The protective drag chain is detachably connected to the flexible protective shell.

2. The protective device for a portable near-infrared optical imaging system according to claim 1, characterized in that: The flexible protective shell includes a host protective shell and a collector protective shell. The host protective shell is removably protectively buckled on the outside of the host connection end, and the collector protective shell is removably protectively buckled on the outside of the collector connection end. The protective drag chain is removably sleeved on the outside of the cable whose two ends are respectively connected to the host connection end and the collector connection end. The two ends of the protective drag chain are detachably connected to the host protective shell and the collector protective shell.

3. The protective device for a portable near-infrared optical imaging system according to claim 2, characterized in that: The flexible protective shells are all of a half-enclosed structure, and a mounting opening is provided on the flexible protective shell. The half-enclosed portion of the flexible protective shell can be releasably fastened to the outside of the host and / or collector connection end through the mounting opening.

4. The protective device for a portable near-infrared optical imaging system according to claim 3, characterized in that: The host protective shell and / or collector protective shell includes two upper and lower angular shells and a main connecting piece connecting the rear sides of the two angular shells. The angular shells and the main connecting piece are integrally formed or fixedly connected. The installation opening is formed at the front side of the angular shells. The angular shells can be releasably fastened to the host connection end and / or the outside of the collector protective shell.

5. The protective device for a portable near-infrared optical imaging system according to claim 4, characterized in that: At least the top and / or bottom of the angular enclosure is a concave angular shape.

6. The protective device for a portable near-infrared optical imaging system according to claim 4, characterized in that: The main connecting piece is provided with an arc-shaped notch at a position away from the connection between the protection drag chain and the host protection shell and / or the collector protection shell.

7. A protective device for a portable near-infrared optical imaging system according to any one of claims 1 to 6, characterized in that: A connecting plate is provided at the end of the flexible protective shell, and the end of the protective drag chain is detachably fixedly connected to the connecting plate.

8. A protective device for a portable near-infrared optical imaging system according to any one of claims 1 to 6, characterized in that: The protective drag chain includes at least three chain buckles which are hingedly connected in sequence from top to bottom, and drag chain baffles are provided on both sides of the chain buckle. The cable is releasably passed through the internal space clamped by the drag chain baffles on both sides, and the end portions of the chain buckles which are hinged in sequence from end to end are detachably fixedly connected to the ends of the flexible protective shell.

9. The protective device for a portable near-infrared optical imaging system according to claim 8, characterized in that: The front portion of the chain buckle is provided with a hinge hole, and the front portion of the chain buckle is hinged to the rear portion of the chain buckle located in front of it through the hinge hole and a hinge axis, the front portion of the frontmost chain buckle is detachably fixedly connected to the flexible protective shell, and the rear portion of the rearmost chain buckle is detachably fixedly connected to the flexible protective shell.

10. A protective device for a portable near-infrared optical imaging system according to any one of claims 1 to 6, characterized in that: The flexible protective shell and the protective drag chain are both made of flexible insulating material.

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