CN217304162U

CN217304162U - Hand-held infrared thermal imaging device

Info

Publication number: CN217304162U
Application number: CN202122734008.9U
Authority: CN
Inventors: 蒋攀; 贺芳芳
Original assignee: Guangzhou SAT Infrared Technology Co Ltd
Current assignee: Guangzhou SAT Infrared Technology Co Ltd
Priority date: 2021-11-09
Filing date: 2021-11-09
Publication date: 2022-08-26
Anticipated expiration: 2031-11-09

Abstract

The utility model relates to a hand-held type infrared thermal imaging device. The embodiment of the utility model provides an infrared thermal imaging device of hand-held type includes handle, detection head and charging seat, and detection head sets up in the first end of handle, and the second end of handle is provided with first charging mouth, and the charging seat is provided with the discharge mouth that corresponds with first charging mouth; a first battery component is arranged in the handle and is respectively connected with the detection head and the first charging port; and a second battery component is arranged in the charging seat and connected with the discharge port. A infrared hot image device of hand-held type charge or directly supply power for image device through set up battery pack in the charging seat to make charging seat and handle stabilize through the fixed pin and be connected, improved the portability when having guaranteed that hot image device continues a journey.

Description

Hand-held infrared thermal imaging device

Technical Field

The utility model relates to an infrared thermal imaging equipment's technical field especially relates to an infrared thermal imaging device of hand-held type.

Background

With the technological progress, people have higher and higher requirements on detection technology, and especially in industrial detection and equipment maintenance, the technology is also widely applied to the work of fire prevention, night vision, security and the like. An infrared thermal imaging apparatus is a device that converts an image of the temperature distribution of a subject into a visible image by detecting infrared radiation of the subject, and performing signal processing, photoelectric conversion, and the like using an infrared thermal imaging technique.

The existing infrared thermal imaging device mainly has 3 endurance modes:

1. the split battery device, i.e. the device and the battery, are two detachable parts, and the battery is installed back to the device after the battery needs to be removed from the device for charging. The disadvantage of this type of method is that the power supply to the device is completely cut off when the battery is removed, and the continuous operation of the device cannot be guaranteed.

2. The device is a built-in battery type device, and the battery in the device is connected and charged through a charging wire. The disadvantage of this kind of mode is that the mode through charging wire flexible coupling is for battery charging, and the charging wire is connected with equipment and is easily not hard up, and can restrict the spatial position that equipment used.

3. The built-in battery type equipment carries out charging endurance by connecting the charging adapter with alternating current and the equipment. The disadvantage of this type of approach is that it cannot guarantee ac power in some special situations, and at the same time it is the least portable.

SUMMERY OF THE UTILITY MODEL

Based on the above, the utility model provides a hand-held infrared thermal imaging device, the utility model discloses a hand-held infrared thermal imaging device includes handle, detection head and charging seat, detection head sets up in the first end of handle, the second end of handle is provided with first charge mouth, the charging seat is provided with the discharge mouth that corresponds with first charge mouth;

a first battery assembly is arranged in the handle and is respectively connected with the detection head and the first charging port;

and a second battery assembly is arranged in the charging seat and is connected with the discharge port.

The charging seat comprises an accommodating part and a connecting part, an accommodating cavity is formed in the accommodating part, the second battery assembly is arranged in the accommodating cavity, one end of the connecting part is connected with the accommodating part, the other end of the connecting part forms an installation opening, an installation cavity is formed in the connecting part, and the discharge opening is arranged in the installation cavity;

when the second end of the handle is inserted into the mounting cavity through the mounting port, the discharging port is matched with the first charging port, and the second battery pack supplies power to the battery pack and the detection head.

Further, the charging seat still includes a fixed pin, be provided with first through-hole on the lateral wall of connecting portion, the handle is located be provided with the second through-hole on the part in the installation cavity, work as the second end of handle inserts when in the installation cavity, first through-hole with the second through-hole sets up with one heart, the fixed pin passes first through-hole with the second through-hole, and make connecting portion with the second end of handle is connected fixedly.

Further, a lateral wall of connecting portion is the fly leaf, the fly leaf is kept away from the one end of installing port through one rotate the connecting piece with the charging seat is connected, the fly leaf with rotate the connecting piece and rotate as the axle center, and make the fly leaf is close to the one end of installing port is to keeping away from the direction of connecting portion rotates, the side of fly leaf is provided with buckle or bayonet socket, connecting portion the lateral wall department of fly leaf butt is provided with bayonet socket or buckle, the buckle with the position of bayonet socket correspond and with the cooperation of bayonet socket joint.

Furthermore, the rotating connecting piece is a rotating shaft, and the rotating shaft is used for driving one end of the movable plate close to the mounting opening to rotate towards the direction of the connecting part.

Furthermore, a clearance groove is formed in the top end of the side wall, away from the movable plate, of the connecting portion, a sealing cover is arranged on the outer side wall of the handle and connected with the handle through a telescopic hose, and the sealing cover is used for sealing the first charging port;

when the second end of the handle is inserted into the connecting part, the sealing cover is adjusted to be right above the clearance groove, and the bottom end of the sealing cover is inserted into the clearance groove.

Furthermore, a first fixing block is arranged in the installation cavity, a first side of the first fixing block is connected with the inner wall of one side of the installation cavity, and an installation gap is formed between a second side of the first fixing block and the inner wall of the other side of the installation cavity;

a second fixing block is arranged at the second end of the handle and is positioned on one side of the second end of the handle, the first side wall of the second fixing block and the outer side wall of the handle are positioned on the same straight line, and the second side wall of the second fixing block and the end surface of the second end of the handle enclose a semi-open accommodating area;

when the second end of the handle is inserted into the mounting cavity, the second fixing block is inserted into the mounting gap, and the first fixing block is located in the accommodating area and abutted to the end face of the second end of the handle.

Further, the discharge port is arranged at the top end of the first fixing block, a charging plug is arranged on the discharge port, the first charging port is arranged on the second end face of the handle and located at the top of the accommodating area, and the first charging port corresponds to the charging plug in position.

Further, the discharge port set up in the top of first fixed block, first charge the mouth set up in on the second terminal surface of handle, and be located holding district top, first the mouth that charges is provided with the magnetism adapter, the magnetism adapter with the position of discharge port corresponds.

Further, a mounting hole is formed in the first fixing block, the mounting hole corresponds to the first through hole in position, the mounting hole is parallel to the first through hole, the second through hole is formed in the side wall of the second fixing block, and when the second fixing block is inserted into the mounting gap, the fixing pin is inserted into the mounting hole from the first through hole through the second through hole for fixing.

Further, the fixed pin is including holding the unit and pegging graft the unit, the one end of grafting unit with the unit connection holds, and the other end inserts inside the mounting hole, the grafting unit is located position in the first through-hole is provided with a telescopic block portion, it is provided with a button on the unit to hold, the button is used for driving block portion income in the grafting unit, be provided with the block groove on the first through-hole inside wall, work as the fixed pin inserts during the first through-hole, block portion with the cooperation of block groove joint.

A hand-held type infrared thermal imaging device, set up first battery pack in the handle and for detecting the head power supply, for realizing conveniently providing continuation of the journey for detecting the head, set up second battery pack in the holding portion of charging seat, the charging seat passes through connecting portion and is connected with the handle to make first battery pack's the mouth that charges and second battery pack's discharge opening intercommunication. For realizing the firm connection and the quick dismantlement of handle and charging seat, set up first fixed block in the connecting portion and with the cooperation of the second fixed block butt on the handle. In order to ensure that the charging seat can not fall off in the using process, a fixing pin is arranged and penetrates through the first through hole in the connecting part and the second through hole in the handle, so that the handle is stably matched with the charging seat. In addition, one side wall of the connecting part can be a rotatable movable plate, so that the handle is convenient to install and can be clamped.

A hand-held type infrared thermal imaging device, through set up the charging seat outside imaging device, realized lasting duration to imaging device, and need not shut down and charge, also effectual portability of having solved equipment has avoided the charging process to bring the influence to equipment application range.

For better understanding and implementation, the technical solutions of the present invention are described in detail below with reference to the accompanying drawings.

Drawings

FIG. 1 is a schematic view of a handheld infrared thermal imaging apparatus according to an embodiment of the present invention;

fig. 2 is an exploded view of a charging stand according to an embodiment of the present invention;

fig. 3 is a schematic view of the bottom end of the handle and the back of the charging seat according to an embodiment of the present invention;

FIG. 4 is a diagram illustrating a connection relationship between the handle and the charging seat according to an embodiment of the present invention;

FIG. 5 is a diagram illustrating a connection relationship between the handle and the charging seat according to an embodiment of the present invention;

FIG. 6 is a diagram illustrating a connection relationship between the handle and the charging seat according to an embodiment of the present invention;

FIG. 7 is a diagram illustrating a connection relationship between the handle and the charging seat according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of a charging seat according to another embodiment of the present invention;

FIG. 9 is a schematic view of the charging dock of FIG. 8;

in the figure, 1, a detection head; 2. a handle; 21. a first charging port; 22. a second fixed block; 221. a second through hole; 3. a charging seat; 31. a receptacle portion; 311. an upper cover; 312. a lower cover; 313. a second battery assembly; 314. a second charging port; 32. a connecting portion; 321. a first through hole; 322. a first fixed block; 322a, mounting holes; 323. a discharge port; 324. a movable plate; 324a, a rotating connector; 324b, a buckle; 324c, a bayonet; 325. avoiding a void groove; 326. a plug; 33. a fixing pin; 331. a plug-in unit; 332. a holding unit; 333. a button; 341. a magnetic adapter; 342. and (7) sealing the cover.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the relevant portions of the present invention are shown in the drawings.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may be present.

Several specific examples are given below for describing the technical solution of the present application in detail. These several specific embodiments may be combined with each other below, and details of the same or similar concepts or processes may not be repeated in some embodiments.

Example 1

Fig. 1 is a schematic diagram of a handheld infrared thermal imaging apparatus according to an embodiment of the present invention. The handheld infrared thermal imaging device in the embodiment comprises a detection head 1, a handle 2 and a charging seat 3. The handle 2 is of a cylindrical-like structure. One end of the handle 2 is connected with the detection head 1, and the other end is connected with the charging seat 3. Be provided with first battery pack in the handle 2, first battery pack passes through the wire and is connected with detecting head 1 to for detecting head 1 power supply. A second battery assembly 313 is disposed in the charging stand 3. The second battery assembly 313 is connected to and charges the first battery assembly. Preferably, second battery assembly 313 may also directly power test head 1.

As shown in fig. 1 and 2, in one embodiment, the charging stand 3 includes an accommodating part 31, a connecting part 32, and a fixing pin 33. The receiving portion 31 may be a square-like structure, a round-like structure, or other structures, and the bottom portion may be flat and may be stably placed. The accommodating portion 31 includes an upper cover 311, a lower cover 312, and an accommodating chamber enclosed by the upper cover 311 and the lower cover 312. The second battery assembly 313 is disposed inside the accommodating chamber. A second charging port 314 is formed on a side wall of the accommodating portion 31, and the second charging port 314 is used for charging the second battery assembly 313. Preferably, to achieve the effect of quick charging, the second charging port 314 in this embodiment may be a Type-C interface. In other examples, the charging port may be changed to suit various environments.

The connecting portion 32 is disposed on the top of the upper cover 311 of the accommodating portion 31. The connecting portion 32 specifically includes an annular sidewall, a bottom end of the annular sidewall is connected to a top end of the upper cover 311, and is matched with an upper surface of the upper cover 311 to form a semi-closed installation chamber, and an installation opening is formed at a top of the installation chamber. A discharge port 323 is formed on the bottom surface of the mounting chamber, and the discharge port 323 is specifically located on the upper surface of the upper cover 311. The second battery assembly 313 in the accommodating portion 31 is electrically connected to and supplies power to the first battery assembly through the discharge opening 323. A first through hole 321 is formed in one side wall of the connecting portion 32, an extending direction of the first through hole 321 is parallel to the upper surface of the upper cover 311, and the first through hole 321 communicates the mounting chamber with a space outside the side wall of the connecting portion 32.

Preferably, to facilitate the insertion of one end of the handle 2 into the interior of the mounting chamber, one side wall of the connecting portion 32 is embodied as a movable plate 324. In the above embodiment, the movable plate 324 is embodied as the front half section of the side wall of the connecting portion 32, and includes a U-shaped structure formed by a front side wall and a portion of the left and right side walls. The bottom end of the movable plate 324 is connected to the upper surface of the upper cover 311 by a rotating connection 324a, so that the movable plate 324 rotates around the bottom edge thereof as an axis, and the top end of the movable plate 324 moves away from the connection portion 32, so that the mounting opening can be expanded outward, and the insertion of the handle 2 is facilitated. Two side walls of the movable plate 324 are respectively provided with a buckle 324b near the top end of the connecting portion 32. A bayonet 324c corresponding to the position of the catch 324b is provided on the end surface of the connecting portion 32 with the sidewall broken. When the movable plate 324 rotates toward the connecting portion 32 and abuts against the sidewall of the connecting portion 32, the fastener 324b engages with the bayonet 324c to fix the movable plate 324, so as to prevent the charging stand 3 from falling off due to the expansion of the mounting opening when the handle 2 is inserted and the charging stand 3 is driven to move.

Preferably, to achieve automatic rebounding after the movable plate 324 is opened, the rotating connector 324a is embodied as a rotating shaft. One elastic end of the rotation shaft is connected to the movable plate 324, and the other elastic end is connected to the upper cover 311, so that the movable plate 324 continuously tends to rotate toward the connecting portion 32.

Preferably, in order to ensure that the handle 2 is not shaken after being connected with the charging stand 3, a first fixing block 322 is arranged in the connecting portion 32. The first fixing block 322 is parallel to the side wall of the connecting portion 32, and a side wall of the first fixing block 322 is connected to an inner wall of one side of the connecting portion 32, and a mounting gap is formed between the other side wall of the first fixing block 322 and the inner wall of the other side of the connecting portion 32. A mounting hole 322a is formed on a sidewall of the first fixing block 322. The opening of the mounting hole 322a is disposed in parallel and concentrically with the first through hole 321, and the mounting hole 322a extends horizontally from the mounting gap toward the inside of the first fixing block 322 and is closed by the side wall of the connecting portion 32 to have the other end open.

Preferably, in order to prevent water from entering the connection part 32 and causing a short circuit, the discharge port 323 is provided on the upper surface of the first fixing block 322 and connected to the second battery pack 313. The side wall of the connecting portion 32 is disposed in an inclined shape, and one end of the connecting portion 32 near the discharge port 323 is higher than one end of the movable plate 324.

As shown in fig. 3, in one embodiment, the bottom end of handle 2 is inserted into a mounting cavity in coupling portion 32 and communicates with second battery pack 313 through discharge port 323. The bottom end of the handle 2 is provided with a second fixing block 22 in cooperation with the inner structure of the connecting portion 32. The second fixing block 22 is located at one side of the bottom end of the handle 2 and protrudes from the bottom end surface of the handle 2. The outer side wall of the second fixing block 22 is positioned on the same line with the outer side wall of the handle 2. The specific location of the second fixed block 22 matches the location of the mounting gap in the connection 32. The inside wall of the second fixed block 22 is matched with the end face of the bottom end of the handle 2 to form a half-open accommodating area, and an opening is formed in one side and the bottom of the accommodating area, which are far away from the second fixed block 22. In order to realize the operation of charging the first battery pack by the charging stand 3, the top of the accommodating area is provided with a first charging port 21, and the first charging port 21 is specifically located on the end face of the bottom end of the handle 2.

Preferably, a second through hole 221 is formed in a sidewall of the second fixing block 22. The second through hole 221 is horizontally disposed inside the second fixing block 22 and communicates the left and right sides of the second fixing block 22.

When the bottom end of the handle 2 is inserted into the inside of the connection portion 32 via the mounting opening, the second fixing block 22 is vertically inserted into the inside of the mounting gap. One side wall of the second fixing block 22 abuts against the inner side wall of the connecting portion 32, the other side wall of the second fixing block 22 abuts against the first fixing block 322, and the second through hole 221 is concentrically disposed between the first through hole 321 and the mounting hole 322 a. At this time, the first through hole 321, the second through hole 221 and the mounting hole 322a are horizontally disposed and communicate with each other. A plug 326 is attached to the discharge port 323, and the plug 326 communicates with the first charging port 21.

In order to ensure the stable connection between the handle 2 and the connecting portion 32, the charging base 3 in this embodiment further includes a fixing pin 33. The fixing pin 33 is inserted into the connecting portion 32 through the first through hole 321, and is inserted into the mounting hole 322a through the second through hole 221, thereby fixing the second fixing block 22 between the side wall of the connecting portion 32 and the first fixing block 322. Preferably, the fixing pin 33 in this embodiment includes a grip unit 332 and a plug unit 331. One end of the insertion unit 331 is connected to the grip unit 332, and the other end is inserted into the connection portion 32 to be fixed. The insertion unit 331 is provided with a retractable engaging portion at a position inside the first through hole 321, and the retractable direction of the engaging portion is perpendicular to the insertion direction of the plug-in unit. The holding unit 332 is provided with a button 333. The button 333 is connected to the engaging portion from the inside of the grip unit 332 via a connecting rod. A spring is disposed between the engaging portion and the inserting unit 331, and the spring is used for pushing the engaging portion to move to the outside of the inserting unit 331. When the button 333 is pressed, the connecting rod drives the engaging portion to move toward the inside of the inserting unit 331. An engaging groove matched with the engaging portion is formed in the inner side wall of the first through hole 321, when the fixing pin 33 is inserted into the first through hole 321, the engaging portion is engaged with the engaging groove, the engaging portion is moved out of the engaging groove after the button 333 is pressed, and the fixing pin 33 can be pulled out of the connecting portion 32.

In other examples, the locking manner of the fixing pin 33 inserted into the connecting portion 32 may be another structure. For example, a rectangular engaging portion is disposed at the top end of the inserting unit 331, an engaging groove is disposed on the inner side wall of the connecting portion 32 at the end of the mounting hole 322a, which is closed, and the opening of the engaging groove matches with the rectangular engaging portion. When the inserting unit 331 is inserted into the connecting portion 32, the rectangular engaging portion is horizontally disposed and extends into the engaging groove through the opening of the engaging groove, and then the holding unit 332 is twisted to rotate the rectangular engaging portion to be vertically disposed, thereby fixing the rectangular engaging portion in the engaging groove.

Please refer to fig. 4 to 7, which are diagrams illustrating a connection relationship between the handle 2 and the charging seat 3 according to an embodiment of the present invention. The steps of the installation and connection of the handle 2 and the charging seat 3 in the embodiment are as follows:

the fixing pin 33 is firstly pulled out from the first through hole 321 and the movable plate 324 is opened, and then the bottom end of the handle 2 is inserted into the mounting chamber through the mounting opening, and the second fixing block 22 is inserted into the mounting gap. The movable plate 324 is then closed. Then, the fixing pin 33 is inserted from the first through hole 321, so that the inserting unit 331 respectively passes through the sidewall of the connecting portion 32 and the second fixing block 22 and extends into the first fixing block 322. At this time, the discharge port 323 communicates with the first charging port 21 via the plug 326, so that the second battery assembly 313 supplies power to the first battery assembly.

As shown in fig. 9, in one embodiment, the connection portion 32 is provided with a clearance groove 325 at a top end of a sidewall away from the movable plate 324, a sealing cover 342 is provided on an outer sidewall of the handle, the sealing cover 342 is connected to the handle 2 through a flexible hose, and the sealing cover 342 covers the first charging port 21 to seal the first charging port 21. When the bottom end of the handle 2 is inserted into the connection portion 32, the sealing cover 342 is separated from the first charging port 21 and is adjusted to the outer sidewall of the handle 2 through the retractable hose, and the bottom end of the sealing cover 342 is inserted into the clearance groove 325. In other examples, the sealing cover 342 may be disposed at other positions of the handle 2, and the clearance groove 325 is a structure formed to cooperate with the sealing cover 342, and can be adjusted according to the position and structural change of the sealing cover 342.

Example 2

Referring to fig. 8 to 9, the present embodiment is substantially the same as embodiment 1, except that: in order to prevent the plug 326 from being damaged by impact when the handle 2 is inserted, the plug 326 in this embodiment may also be a magnetic adapter 341, and the magnetic adapter 341 is inserted into the first charging port 21. Since the plug 326 is eliminated at the discharge port 323, the connecting portion 32 does not need to be designed in a separable manner, i.e., the movable plate 324 is eliminated, and the connecting portion 32 is an integral fixed structure. And since the movable plate 324 is removed, the rotating connector 324a, the latch 324b and the bayonet 324c engaged therewith are also removed accordingly.

During charging, the handle 2 is inserted into the connecting portion 32, and at this time, the discharging port 323 contacts with the bottom of the magnetic adapter 341 and realizes electrical connection, so that the second battery assembly 313 is communicated with the first battery assembly.

The above-mentioned embodiments only represent several embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the concept of the present invention, several variations and modifications can be made, which all fall within the scope of the present invention.

Claims

1. A handheld infrared thermal imaging device, comprising:

the detection head is arranged at the first end of the handle, the second end of the handle is provided with a first charging port, and the charging seat is provided with a discharging port corresponding to the first charging port;

2. The handheld infrared thermal imaging device of claim 1, wherein:

3. The hand-held infrared thermal imaging device of claim 2, wherein:

the charging seat further comprises a fixing pin, a first through hole is formed in the side wall of the connecting portion, a second through hole is formed in the portion, located in the installation cavity, of the handle, when the second end of the handle is inserted into the installation cavity, the first through hole and the second through hole are concentrically arranged, and the fixing pin penetrates through the first through hole and the second through hole and enables the connecting portion and the second end of the handle to be fixedly connected.

4. The handheld infrared thermal imaging device of claim 3, wherein:

a lateral wall of connecting portion is the fly leaf, the fly leaf is kept away from the one end of installing port through one rotate the connecting piece with the charging seat is connected, the fly leaf with rotate the connecting piece and rotate as the axle center, and make the fly leaf is close to the one end of installing port is to keeping away from the direction of connecting portion rotates, the side of fly leaf is provided with buckle or bayonet socket, connecting portion the lateral wall department of fly leaf butt is provided with bayonet socket or buckle, the buckle with the position of bayonet socket correspond and with the cooperation of bayonet socket joint.

5. The handheld infrared thermal imaging device of claim 4, wherein:

the rotating connecting piece is a rotating shaft, and the rotating shaft is used for driving the movable plate to be close to one end of the mounting hole to rotate towards the direction of the connecting part.

6. The handheld infrared thermal imaging device of claim 5, wherein:

the top end of the side wall of the connecting part, which is far away from the movable plate, is provided with a clearance groove, the outer side wall of the handle is provided with a sealing cover, the sealing cover is connected with the handle through a telescopic hose, and the sealing cover is used for sealing the first charging port;

7. The handheld infrared thermal imaging device of claim 3 or 4, characterized in that:

a first fixed block is arranged in the installation cavity, the first side of the first fixed block is connected with the inner wall of one side of the installation cavity, and an installation gap is formed between the second side of the first fixed block and the inner wall of the other side of the installation cavity;

8. The handheld infrared thermal imaging device of claim 7, wherein:

the discharging port is arranged at the top end of the first fixing block and provided with a charging plug, the first charging port is arranged on the second end face of the handle and located at the top of the accommodating area, and the first charging port corresponds to the position of the charging plug.

9. The handheld infrared thermal imaging device of claim 7, wherein:

the discharge port set up in the top of first fixed block, first the mouth that charges set up in on the second terminal surface of handle, and be located holding district top, first the mouth that charges is provided with the magnetism adapter, the magnetism adapter with the position of discharge port corresponds.

10. The handheld infrared thermal imaging device of claim 7, wherein:

the first fixing block is provided with a mounting hole, the mounting hole corresponds to the first through hole in position, the mounting hole is parallel to the first through hole, the second through hole is formed in the side wall of the second fixing block, and when the second fixing block is inserted into the mounting gap, the fixing pin is inserted into the mounting hole from the first through hole and the second through hole and fixed.

11. The hand-held infrared thermal imaging device of claim 10, wherein:

the fixed pin is including holding the unit and grafting unit, the one end of grafting unit with the unit connection holds, and the other end inserts inside the mounting hole, the grafting unit is located position in the first through hole is provided with a telescopic block portion, it is provided with a button on the unit to hold, the button is used for driving block portion income in the grafting unit, be provided with the block groove on the first through hole inside wall, work as the fixed pin inserts during the first through hole, block portion with the cooperation of block groove joint.