Handheld thermal imaging device

Abstract

The utility model relates to the technical field of detection equipment, and provides a handheld thermal imaging device. The handheld thermal imaging device comprises a detection shell, a mounting seat and a locking piece, the detection shell is provided with an assembly cavity and an assembly hole communicated with the assembly cavity; the mounting base comprises an assembling part and a fixing part connected to the assembling part, the fixing part penetrates through the assembling hole and extends into the assembling cavity, and the assembling part is located outside the assembling cavity and used for mounting the laser; the locking piece is arranged in the assembling cavity, detachably connected with the part, located in the assembling cavity, of the fixing part and used for locking the mounting base to the detection shell. According to the handheld thermal imaging device provided by the invention, the laser is convenient to disassemble and assemble, the assembly process is simplified, and the assembly time is shortened.

Description

Technical Field

[0001] This application relates to the technical field of detection devices, and particularly to a handheld thermal imaging device. Background Art

[0002] With the continuous iterative update of infrared thermal imaging detection technology, the performance of thermal imaging devices has been continuously improved. Combined with corresponding image analysis software technology, they are widely used in industry, agriculture and people's lives. Nowadays, infrared thermal imaging devices are no longer limited to the large-sized pan-tilt, dome camera, bullet camera and other devices that need to be fixedly installed in the past. There have also emerged handheld temperature measurement thermal imagers that can be flexibly used for operation and maintenance inspection, repair and leakage detection, etc., with visual temperature measurement, which is convenient for outdoor observation, personnel search, etc.

[0003] In related technologies, a laser is used in a handheld temperature measurement thermal imager to achieve auxiliary aiming and target indication. However, since the lasers in most handheld temperature measurement thermal imagers are fixed by gluing, it is necessary to use glue baking equipment for reinforcement during the assembly process, which leads to an increase in the overall assembly process and longer time. Summary of the Utility Model

[0004] Based on this, it is necessary to provide a handheld thermal imaging device that facilitates the disassembly and assembly of the laser, simplifies the assembly process, and reduces the assembly time.

[0005] A handheld thermal imaging device includes a detection housing, a mounting base and a locking member; the detection housing is provided with an assembly cavity and an assembly hole communicating with the assembly cavity; the mounting base includes an assembly portion and a fixing portion connected to the assembly portion, the fixing portion passes through the assembly hole and extends into the assembly cavity, the assembly portion is located outside the assembly cavity and is used for mounting a laser; the locking member is arranged in the assembly cavity and is detachably connected to the part of the fixing portion located in the assembly cavity for locking the mounting base to the detection housing.

[0006] It can be understood that the assembly of the laser is realized by using the assembly portion, and the fixing portion extends into the assembly cavity of the detection housing to be connected with the locking member, so as to realize the fixation of the mounting base relative to the detection housing, and then the laser is mounted on the detection housing. In this process, there is no need to use glue for fixation. Just extending the fixing portion into the assembly cavity to connect with the locking member in the assembly cavity can meet the assembly requirements. The overall operation is simple, which simplifies the assembly process, eliminates the need to wait for the glue to cure, reduces the assembly time, and thus improves the assembly efficiency. Moreover, precisely due to the detachable connection between the locking member and the fixing portion, it is convenient for the assembly and disassembly of the laser relative to the detection housing. In addition, since the assembly portion is located outside the assembly cavity, it ensures the field of view of the laser and reduces assembly interference.

[0007] In some of these embodiments, the locking member is inserted and cooperated with the fixing portion and is limited to the cavity wall of the assembly cavity; on the side of the mounting seat facing the fixing portion in the assembling portion, there is a first abutting surface, which is located outside the assembly cavity and abuts against the outer side wall of the detection housing.

[0008] In some of these embodiments, the cavity wall where the assembly hole is provided on the detection housing is used as the limiting cavity wall; the fixing portion is provided with an insertion space, or there is an insertion space between the fixing portion and the limiting cavity wall, and the locking member is provided with an insertion arm, and the insertion arm is inserted into the insertion space and limited to the limiting cavity wall.

[0009] In some of these embodiments, the fixing portion is provided with a jack, and the jack forms the insertion space; alternatively, the locking member has a width direction, and at least one side of the fixing portion along the width direction is recessed with a slot, and the slot forms the insertion space; alternatively, the fixing portion is provided with a limiting ring platform, and there is an insertion space between the limiting ring platform and the limiting cavity wall.

[0010] In some of these embodiments, the locking member is provided with a force-applying portion for applying force.

[0011] In some of these embodiments, the detection housing is provided with a sliding groove for the sliding fit of the locking member, a first limiting platform is arranged in the sliding groove, and the locking member is provided with a second limiting platform, and the second limiting platform is in abutting cooperation with the first limiting platform.

[0012] In some of these embodiments, a sealing member is pressed between the fixing portion and the hole wall of the assembly hole.

[0013] In some of these embodiments, at least one of the fixing portion and the hole wall of the assembly hole is provided with a sealing groove, and a part of the sealing member is arranged in the sealing groove.

[0014] In some of these embodiments, the assembling portion is provided with an installation cavity for installing a laser, the fixing portion is provided with an installation hole communicating with the installation cavity, and the installation hole is used for introducing the connecting wire of the laser into the assembly cavity.

[0015] In some of these embodiments, the fixing portion is provided with a first wire routing groove communicating with the installation hole, and / or the locking member is provided with a second wire routing groove. Description of the Drawings

[0016] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0017] Figure 1 It is a partial schematic diagram of a handheld thermal imaging device provided by an embodiment of the present application;

[0018] Figure 2 is Figure 1 a partial enlarged view of part A in;

[0019] Figure 3 It is a partial sectional view of a handheld thermal imaging device provided by an embodiment of the present application;

[0020] Figure 4 is Figure 1 a schematic diagram of a laser installed on a mounting base in the provided handheld thermal imaging device;

[0021] Figure 5 It is a schematic diagram of a locking member in a handheld thermal imaging device provided by an embodiment of the present application;

[0022] Figure 6 It is a partial schematic diagram of a detection housing in a handheld thermal imaging device provided by an embodiment of the present application;

[0023] Figure 7 It is a partial bottom view of a detection housing in a handheld thermal imaging device provided by an embodiment of the present application.

[0024] Reference numerals: 10, detection housing; 11, limiting cavity wall; 12, clamping boss; 13, first limiting platform; 14, second abutting surface; 20, mounting base; 21, assembly part; 22, fixing part; 30, locking member; 31, inserting arm; 32, force-applying part; 33, second wire groove; 34, second limiting platform; 40, laser; 41, connecting wire; 50, seal; 51, seal groove; 101, assembly cavity; 102, assembly hole; 201, inserting space; 202, first abutting surface; 211, mounting cavity; 213, injection molding reserved cavity; 221, mounting hole; 222, first wire groove; 321, force-applying hole; 2201, slot. Detailed implementation manners

[0025] To make the above objects, features, and advantages of the present application more apparent and understandable, the following provides a detailed description of the specific embodiments of the present application with reference to the accompanying drawings. Many specific details are set forth in the following description to facilitate a thorough understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0026] It should be noted that when a component is referred to as "fixed to" or "disposed on" another component, it can be directly on the other component or there can also be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right", and similar expressions used in the specification of the present application are for illustrative purposes only and do not represent the only implementation.

[0027] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0028] In the present application, unless otherwise clearly defined and limited, the first feature may be in direct contact with the second feature "on" or "under" the second feature, or the first feature and the second feature may be in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over", and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or only indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath", and "underneath" the second feature may mean that the first feature is directly below or obliquely below the second feature, or only indicates that the first feature has a lower horizontal height than the second feature.

[0029] Unless otherwise defined, all technical and scientific terms used in the specification of the present application have the same meaning as commonly understood by those skilled in the technical field to which the present application belongs. The terms used in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application. The term "and / or" used in the specification of the present application includes any and all combinations of one or more of the related listed items.

[0030] A laser is provided in the handheld temperature measurement thermal imager to achieve the purpose of auxiliary aiming and target indication. Since most handheld temperature measurement thermal imagers need to be used outdoors, the assembly requirements for the laser are relatively high. It is necessary not only to ensure the aiming field of view but also to ensure the reliability of the connection. In the related art, most lasers are assembled to the housing of the handheld temperature measurement thermal imager by means of glue bonding to ensure firm installation. However, precisely because of the use of glue bonding, it is necessary to use glue baking equipment for reinforcement during the assembly process, which is equivalent to adding a glue bonding process, resulting in an extension of the overall assembly production time and a reduction in assembly efficiency. Moreover, during glue bonding, multiple glue applications are required to ensure sufficient bonding area and improve connection reliability, which also leads to a long glue bonding process and further reduces assembly efficiency. In addition, glue bonding belongs to a kind of non-detachable connection. If the laser is damaged by impact during use, it is not convenient to replace it in time; and if the laser needs to be replaced, even the entire handheld temperature measurement thermal imager needs to be replaced, resulting in a high cost.

[0031] Based on this, an embodiment of the present application provides a handheld thermal imaging device, which simplifies the assembly process of the laser, reduces the assembly time-consuming, improves the assembly efficiency, facilitates the disassembly and assembly of the laser, is conducive to timely replacement, does not affect the handheld thermal imaging device body, and reduces the cost. The following is a detailed description of the handheld thermal imaging device.

[0032] Please refer to Figures 1 to 3 and Figure 6 、 Figure 7 Exemplarily, the handheld thermal imaging device includes a detection housing 10, a mounting base 20, and a locking member 30. The detection housing 10 is provided with an assembly cavity 101 and an assembly hole 102 communicating with the assembly cavity 101. The assembly cavity 101 is used for installing detection components in the handheld thermal imaging device, such as detectors, imagers, etc. The assembly hole 102 is used for the assembly of the mounting base 20 relative to the detection housing 10. The mounting base 20 is used for installing the laser 40. The locking member 30 is located inside the detection housing 10 to lock the mounting base 20 relative to the detection housing 10, thereby realizing the assembly of the laser 40 relative to the detection housing 10.

[0033] Specifically, the mounting base 20 includes an assembling part 21 and a fixing part 22 connected to the assembling part 21. The fixing part 22 passes through the assembling hole 102 on the detection housing 10 and extends into the assembling cavity 101. The locking member 30 is detachably connected to the part of the fixing part 22 extending into the assembling cavity 101. The assembling part 21 is located outside the assembling cavity 101 and is used for mounting the laser 40, reducing the occlusion, interference, etc. caused by the detection housing 10 to the laser emission of the laser 40, and ensuring the detection field of view of the laser. Due to the detachable connection between the locking member 30 and the fixing part 22, not only the locking of the mounting base 20 relative to the detection housing 10 is realized, but also it is beneficial to disassemble the mounting base 20 relative to the detection housing 10, facilitating the replacement of a new laser 40, etc.

[0034] That is to say, the assembling of the laser 40 is realized by using the assembling part 21, and then the fixing part 22 extends into the assembling cavity 101 of the detection housing 10 to cooperate with the locking member 30 to realize the fixing of the mounting base 20 relative to the detection housing 10, and then the laser 40 is mounted on the detection housing 10. With such a setting, there is no need to use glue for fixing. Just extending the fixing part 22 into the assembling cavity 101 to connect with the locking member 30 in the assembling cavity 101 can meet the assembly requirements. The overall operation is simple, the assembly process is simplified, there is no need to wait for the glue to cure, the assembly time is reduced, and thus the assembly efficiency is improved. Since the assembling part 21 is located outside the assembling cavity 101, the field of view of the laser 40 is ensured, and there is no need to specially reserve space for the assembly of the laser 40 in the assembling cavity 101, reducing assembly interference. At the same time, precisely because of the detachable connection between the locking member 30 and the fixing part 22, it is convenient for the assembly and disassembly of the laser 40 relative to the detection housing 10, replacing lasers 40 of different models and new lasers 40, increasing the applicable range and extending the service life. Moreover, with such a setting, there is no direct connection relationship between the laser 40 and the detection housing 10. The replacement of the laser 40 does not affect the disassembly of the detection housing 10, thereby reducing the overall cost. In addition, precisely because the locking member 30 and the fixing part 22 cooperate in the assembling cavity 101, the problem of being easily damaged due to the exposed mating position is improved.

[0035] Such as Figure 3 、 Figure 4 、 Figure 6 and Figure 7 As shown in, further, a sealing member 50 is press-fitted between the fixing part 22 and the hole wall of the assembling hole 102, which can ensure the sealing performance of the connection part and reduce the infiltration of moisture.

[0036] For example, the outer wall of the fixing portion 22 may be provided with a sealing groove 51, and part of the sealing member 50 may be provided in the sealing groove 51 and pressed between the fixing portion 22 and the hole wall of the assembly hole 102. The sealing member 50 may be a sealing ring, and the sealing groove 51 may be an annular groove to ensure the sealing performance at all places in the circumferential direction. Of course, the hole wall of the assembly hole 102 may also be provided with a sealing groove 51 for installing the sealing member 50 to achieve the sealing purpose of the connection. Alternatively, the sealing groove 51 may be provided on both the outer wall of the fixing portion 22 and the hole wall of the assembly hole 102, and it is sufficient as long as the sealing member 50 can be assembled, which is only used as an example here.

[0037] The shape of the fixing portion 22 matches the shape of the assembly hole 102. For example, if the assembly hole 102 is a circular hole, the fixing portion 22 is a cylinder, which is more conducive to the assembly of the sealing ring, reduces stress concentration, and ensures structural strength.

[0038] See also Figures 2 to 7 Optionally, the locking member 30 is plugged into and matched with the portion of the fixing portion 22 located in the assembly cavity 101. Such a configuration not only facilitates the detachable connection between the locking member 30 and the fixing portion 22, but also further simplifies the assembly process, making the operation more convenient. When the locking member 30 is plugged into and matched with the fixing portion 22, the locking member 30 is limited to the cavity wall of the assembly cavity 101. At the same time, the mounting seat 20 is provided with a first abutting surface 202, the first abutting surface 202 is located on the side of the assembly portion 21 facing the fixing portion 22, the first abutting surface 202 is located outside the assembly cavity 101, and abuts against the outer side wall of the detection housing 10. The axial direction of the assembly hole 102 is along the Z-axis direction.

[0039] It can be understood that when the locking member 30 is plugged into the fixing portion 22, the first abutting surface 202 on the mounting seat 20 abuts against the detection housing 10, and the locking member 30 abuts against the cavity wall of the assembly cavity 101, thereby forming a two-way limit along the Z-axis direction to meet the locking requirements of the mounting seat 20 and the detection housing 10 through the locking member 30. In actual use, a second abutting surface 14 is provided on the detection housing 10 on the side of the limiting cavity wall 11 away from the assembly cavity 101, and the first abutting surface 202 abuts against the second abutting surface 14 to achieve assembly limit. Both the first abutting surface 202 and the second abutting surface 14 are planes to ensure uniform force. Of course, both the first abutting surface 202 and the second abutting surface 14 can be arc-shaped surfaces bent around the axis of the assembly cavity 101, as long as the two are adapted to meet the aforementioned two-way limit, which is only illustrated here.

[0040] Among them, a side wall of the assembly part 21 itself along the Z-axis direction facing the fixed part 22 can be used as the first abutting surface 202. Such a setting can reduce the overall size of the mounting seat 20 along the Z-axis direction. Alternatively, an abutting limit platform can be provided on the side of the assembly part 21 along the Z-axis direction facing the fixed part 22, surrounding the outer peripheral side of the fixed part 22, and the side wall of the abutting limit platform away from the assembly part 21 along the Z-axis direction serves as the first abutting surface 202.

[0041] like Figure 4 As shown, further, the fixing portion 22 and the assembly portion 21 are arranged at an angle. With such an arrangement, the assembly portion 21 can be used to limit the extension of the fixing portion 22 relative to the assembly hole 102, ensuring that the scanning field of view of the laser 40 on the assembly portion 21 is not affected. In actual use, the plane size of the fixing portion 22 is smaller than the plane size of the assembly portion 21, so as to ensure that the side of the assembly portion 21 facing the fixing portion 22 has sufficient area, increase the abutment area with the detection housing 10, and improve the connection reliability.

[0042] In some embodiments, a sealing member may be pressed between the assembly portion 21 and the detection housing 10 , which only needs to seal the assembly hole 102 and reduce moisture, impurities, etc. that penetrate from the assembly hole 102 .

[0043] Please continue reading Figures 2 to 7 Optionally, the cavity wall where the detection housing 10 is provided with the assembly hole 102 is used as the limiting cavity wall 11. The fixing portion 22 is provided with an insertion space 201, and the locking member 30 is provided with a plug-in arm 31, and the plug-in arm 31 is inserted into the insertion space 201 and limited to the limiting cavity wall 11. In other words, the locking member 30 and the fixing portion 22 of the mounting seat 20 are connected in a detachable manner by means of the plug-in cooperation between the plug-in arm 31 and the insertion space 201. When the plug-in arm 31 is inserted into the insertion space 201, due to the limitation of the cavity wall surrounding the insertion space 201, especially the cavity wall located on the side of the plug-in arm 31 away from the assembly portion 21 along the axial direction of the assembly hole 102, the mounting seat 20 can be prevented from being separated from the detection housing 10 as much as possible; at this time, due to the cooperation between the first abutting surface 202 and the second abutting surface 14 on the aforementioned mounting seat 20, the two-way limitation is satisfied. Furthermore, since the insertion space 201 is disposed on the fixing portion 22 , that is, there is no protrusion on the fixing portion 22 along the radial direction of the assembly hole 102 , it is convenient for the fixing portion 22 to pass through the assembly hole 102 , thereby reducing assembly interference.

[0044] The assembly cavity 101 of the detection housing 10 has an axial direction along the X-axis direction. The locking member 30 has a width direction along the Y-axis direction, and the locking member 30 moves along the X-axis direction to be inserted and cooperated with the fixing portion 22. In some specific embodiments, the fixing portion 22 is provided with an insertion hole, and the axial direction of the insertion hole is along the X-axis direction to form the aforementioned insertion space 201. The insertion arm 31 is inserted into the insertion hole and limited by the cavity wall of the assembly cavity 101, so as to realize the assembly of the mounting seat 20 relative to the detection housing 10. When there is one insertion hole, it can be located in the middle along the Y-axis direction of the fixing portion 22 or in the middle of the area; when there are two insertion holes, they are arranged at intervals along the Y-axis direction.

[0045] Alternatively, at least one side of the fixing portion 22 along the Y-axis direction is recessed with a slot 2201, and the slot 2201 forms the aforementioned insertion space 201. The slot 2201 has opposite and spaced limiting slot walls along the Z-axis direction. When the insertion arm 31 is inserted into the slot 2201, the limiting slot wall located above along the Z-axis direction can press on the insertion arm 31, so that the insertion arm 31 is limited on the limiting cavity wall 11, realizing the assembly of the mounting seat 20 and the detection housing 10. For example, slots 2201 can be recessed on both sides of the fixing portion 22 along the Y-axis direction. Correspondingly, two insertion arms 31 spaced along the Y-axis direction are provided on the locking member 30, and the two insertion arms 31 are respectively inserted into a slot 2201. Such a setting can avoid the middle position of the fixing portion 22, which is beneficial to the arrangement of the connecting wire 41 on the laser 40.

[0046] Another alternative is that the fixing portion 22 is provided with an annular groove recessed radially inward along the assembly hole 102, so that an annular limiting ring platform is formed on the fixing portion 22, and an insertion space 201 is provided between the limiting ring platform and the limiting cavity wall 11. At this time, two insertion arms 31 spaced along the Y-axis direction are provided on the locking member 30, and the two insertion arms 31 are respectively arranged on both sides of the fixing portion 22 in the radial direction and are limited between the limiting ring platform and the limiting cavity wall 11. Of course, it is also possible to use one insertion arm 31 for insertion and cooperation. However, when there are two insertion arms 31, it is equivalent to having forces on both sides of the fixing portion 22 along the Y-axis direction, improving the connection reliability.

[0047] It should be noted that whether it is the aforementioned slot 2201 or the aforementioned annular groove, they are both arranged at intervals along the Z-axis direction with the sealing groove 51 provided on the fixing portion 22, and the sealing groove 51 is located below in the Z-axis direction.

[0048] Please refer to Figures 2 to 4, Further, the assembly part 21 is provided with an installation cavity 211 for installing the laser 40, and the fixing part 22 is provided with an installation hole 221 communicating with the installation cavity 211. The installation hole 221 is used for leading out the connection wire 41 of the laser 40 into the assembly cavity 101. In this way, the connection wire 41 of the laser 40 can be electrically connected to structures such as the control board in the assembly cavity 101 to realize the transmission of electrical signals.

[0049] Among them, the mounting seat 20 can be injection molded. The assembly part 21 is provided with an injection molding reserved cavity 213 on the side facing the detection housing 10 to reduce the shrinkage effect during the injection molding of the mounting seat 20; moreover, the injection molding reserved cavity 213 is open at the first abutting surface 202 to reduce the contact area with the second abutting surface 14 and reduce friction.

[0050] Please continue to refer to Figures 2 to 4 , in actual use, a first wire groove 222 communicating with the installation hole 221 is recessed at one end of the fixing part 22 away from the assembly part 21. The connection wire 41 is electrically connected to the control board through the first wire groove 222, improving the problem that the connection wire 41 is easily damaged due to protrusion and causing assembly interference. Alternatively, the fixing part 22 is provided with a wire hole penetrating through the radial direction of the assembly hole 102, and the connection wire 41 is led out through the wire hole and electrically connected to the control board.

[0051] Please continue to refer to Figures 2 to 7 , in some embodiments, the detection housing 10 has a limiting cavity wall 11 provided with an assembly hole 102. A sliding groove is provided on the limiting cavity wall 11, and the locking member 30 is arranged in the sliding groove and can reciprocate along the X-axis direction in the sliding groove to be inserted and matched with the fixing part 22. That is to say, by using the sliding of the locking member 30 relative to the detection housing 10 along the X-axis direction, the insertion and matching and the release of the insertion and matching between the locking member 30 and the fixing part 22 are realized. For example, when the locking member 30 moves to the right along the X-axis direction, it is inserted and matched with the slot 2201 on the fixing part 22 to realize the assembly; on the contrary, when the locking member 30 moves to the left along the X-axis direction, the insertion and matching with the fixing part 22 are released, facilitating the replacement of the laser 40 installed at the assembly part 21.

[0052] Specifically, a clamping boss 12 protrudes from the side of the limiting cavity wall 11 away from the assembly part 21. The clamping boss 12 and the limiting cavity wall 11 jointly enclose a sliding groove, and the locking member 30 is inserted into the sliding groove and slides along the X-axis direction in the sliding groove. Among them, one side of the detection housing 10 along the Z-axis direction is used as the assembly side, and the sliding groove penetrates to the assembly side, facilitating the locking member 30 to move into and out of the assembly cavity 101 relative to it and reducing interference. The setting of the sliding groove not only restricts the locking member 30 but also guides the movement of the locking member 30.

[0053] Furthermore, a first limiting platform 13 is provided in the slide groove, and a corresponding locking member 30 is provided with a second limiting platform 34. The abutment between the first limiting platform 13 and the second limiting platform 34 is used to limit the movement of the locking member 30 relative to the assembly cavity 101 along the X-axis direction. Among them, the first limiting platform 13 is provided with a first inclined surface on the side away from the assembly hole 102 along the X-axis direction, and the corresponding second limiting platform 34 is also provided with a matching second inclined surface, which has a buffering effect. In some specific embodiments, the first limiting platform 13 extends along the X-axis direction toward the side close to the assembly hole 102 to raise the plug arm 31 on the locking member 30, adapt to the slot 2201 on the fixing portion 22, and improve the connection reliability.

[0054] In some specific embodiments, the locking member 30 is disposed on both sides of the fixing portion 22 in the radial direction through two plug-in arms 31, and is correspondingly plugged into a slot 2201. The locking member 30 is pressed on the side of the limiting cavity wall 11 facing the assembly cavity 101, and the assembly portion 21 on the mounting seat 20 abuts against the side of the limiting cavity wall 11 away from the assembly cavity 101. In this way, a two-way limit along the Z-axis direction can be formed to realize the assembly of the mounting seat 20 and the detection housing 10.

[0055] Alternatively, the cross-section of the snap-fitting boss 12 can be an inverted L-shape, so as to form a U-shaped slide groove with the limiting cavity wall 11. The locking member 30 is arranged in the slide groove and limited between the snap-fitting boss 12 and the limiting cavity wall 11, so as to limit the assembly of the locking member 30 along the Z-axis direction, ensuring that the locking member 30 can only move back and forth along the X-axis direction.

[0056] Among them, the locking piece 30 has a central axis along the X-axis direction, and the thickness of the locking piece 30 is gradually reduced from the central axis toward the extended edge along the Y-axis direction, so that the thickness of the locking piece 30 on both sides along the Y-axis direction is smaller, and the size of the corresponding clamping boss 12 can also be set smaller to reduce assembly interference.

[0057] like Figure 2 and Figure 5 As shown, in some embodiments, the locking member 30 is provided with a force-applying portion 32 for applying force, so that the user can apply force to the locking member 30 through the force-applying portion 32 to achieve reciprocating movement of the locking member 30 along the X-axis direction. For example, the force-applying portion 32 can be a force-applying protrusion convexly provided on the locking member 30, and the force-applying protrusion is located on the side of the locking member 30 away from the limiting cavity wall 11 along the Z-axis direction, for the user to hold. Alternatively, it can also be that the force-applying portion 32 is a force-applying hole 321 that penetrates the locking member 30 along the Z-axis direction, and the user inserts a finger into the force-applying hole 321 to push or pull the locking member 30. When it is a force-applying hole 321, since the thickness of the aforementioned locking member 30 near the middle is thicker, the corresponding force-applying hole 321 has a larger depth along the Z-axis direction, which increases the force-applying area and is more conducive to operating the movement of the locking member 30.

[0058] During actual use, the force application part 32 is provided with a second wire routing groove 33. After the aforementioned connecting wire 41 is led out through the first wire routing groove 222, it can be threaded through the second wire routing groove 33, further improving the regularity of wire routing and reducing risks such as interference caused by the connecting wire 41 being disorderly. The second wire routing groove 33 is provided in the middle of the locking member 30 in the Y-axis direction.

[0059] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the various technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0060] The above-described embodiments merely represent several implementation manners of the present application. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several deformations and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.

Claims

1. A handheld thermal imaging device, characterized in that, Comprising: A detection housing (10) provided with an assembly cavity (101) and an assembly hole (102) communicating with the assembly cavity (101); A mounting base (20) including an assembly portion (21) and a fixing portion (22) connected to the assembly portion (21), the fixing portion (22) passing through the assembly hole (102) and extending into the assembly cavity (101), the assembly portion (21) being located outside the assembly cavity (101) and used for mounting a laser (40); A locking member (30) provided in the assembly cavity (101) and detachably connected to the portion of the fixing portion (22) located in the assembly cavity (101) for locking the mounting base (20) to the detection housing (10).

2. The handheld thermal imaging device according to claim 1, wherein The locking member (30) is in plug-in fit with the fixing portion (22) and presses against the cavity wall of the assembly cavity (101); On one side of the mounting base (20) where the assembly portion (21) faces the fixing portion (22), a first abutting surface (202) is provided, the first abutting surface (202) being located outside the assembly cavity (101) and abutting against the outer side wall of the detection housing (10).

3. The handheld thermal imaging device according to claim 2, wherein Taking the cavity wall of the detection housing (10) where the assembly hole (102) is provided as the limiting cavity wall (11); The fixing portion (22) is provided with a plug-in space (201), or there is a plug-in space (201) between the fixing portion (22) and the limiting cavity wall (11), the locking member (30) is provided with a plug-in arm (31), and the plug-in arm (31) is inserted into the plug-in space (201) and limited by the limiting cavity wall (11).

4. The handheld thermal imaging device according to claim 3, characterized in that, The fixing portion (22) is provided with a jack, and the jack forms the plug-in space (201); or, The locking member (30) has a width direction, at least one side of the fixing portion (22) along the width direction is recessed with a slot (2201), and the slot (2201) forms the plug-in space (201); or, The fixing portion (22) is provided with a limiting ring platform, and there is a plug-in space (201) between the limiting ring platform and the limiting cavity wall (11).

5. The handheld thermal imaging device according to claim 2, wherein The locking member (30) is provided with a force-applying portion (32) for applying force.

6. The handheld thermal imaging device according to claim 2, characterized in that, The detection housing (10) is provided with a sliding groove for the sliding fit of the locking member (30), a first limiting platform (13) is provided in the sliding groove, the locking member (30) is provided with a second limiting platform (34), and the second limiting platform (34) is in abutting fit with the first limiting platform (13).

7. The handheld thermal imaging device according to any one of claims 1 to 6, characterized in that A sealing member (50) is pressed between the fixing portion (22) and the hole wall of the assembly hole (102).

8. The hand-held thermal imaging device according to claim 7, wherein At least one of the fixing portion (22) and the hole wall of the assembly hole (102) is provided with a sealing groove (51), and a part of the sealing member (50) is arranged in the sealing groove (51).

9. The handheld thermal imaging device according to any one of claims 1 to 6, characterized in that, The assembly part (21) is provided with an installation cavity (211) for installing the laser (40), the fixing part (22) is provided with an installation hole (221) communicating with the installation cavity (211), and the installation hole (221) is used for introducing the connection wire (41) of the laser (40) into the assembly cavity (101).

10. The handheld thermal imaging device according to claim 9, characterized in that, The fixing part (22) is provided with a first wire routing groove (222) communicating with the installation hole (221), and / or the locking member (30) is provided with a second wire routing groove (33).

Images