External lens device and infrared handheld equipment

Abstract

The utility model discloses an external lens device and an infrared hand-held device, comprising a lens assembly and an elastic arm, the elastic arm comprises: a fixing member connected with the lens assembly; the transverse moving part can be movably connected with the fixing part in the first direction; the vertical moving part is movably connected with the transverse moving part in the second direction, an included angle is formed between the first direction and the second direction, and a clamping part is arranged at the bottom of the vertical moving part and used for being fixedly connected with the infrared handheld device in a clamped mode. The size of different infrared handheld devices in the first direction can be adapted by adjusting the position of the transverse moving part, the size of different infrared handheld devices in the second direction can be adapted by adjusting the position of the vertical moving part, and the elastic arm is adapted to various types of infrared handheld devices by adjusting the positions of the transverse moving part and the vertical moving part. According to the technical scheme of the utility model, a plurality of infrared handheld devices can share the same external lens device, so that the universality of the external lens device is improved, the situation that a set of special external lens device is designed for each infrared handheld device is avoided, and the cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of external functional components of infrared devices, and more specifically, to an external lens device. In addition, the utility model also relates to an infrared handheld device including the above external lens device. Background Art

[0002] In order to expand the product functions and usage scenarios of infrared handheld devices, an external lens function component is usually added to the infrared handheld device. The external lens function component is provided with an elastic arm, and the external lens function component is fixed to the infrared handheld device through the elastic arm.

[0003] However, in the related art, because the shapes and sizes of different models of handheld infrared devices are different, therefore, a corresponding supporting external lens function component is developed for each handheld infrared device product, that is, the external lens function component cannot be shared by multiple products.

[0004] Therefore, how to improve the versatility of the external lens function component is an urgent problem to be solved by those skilled in the art at present. Summary of the Utility Model

[0005] In view of this, an object of the utility model is to provide an external lens device with good versatility.

[0006] Another object of the utility model is to provide an infrared handheld device including the above external lens device, and the external lens device thereof has versatility.

[0007] In order to achieve the above object, the utility model provides the following technical solutions:

[0008] An external lens device includes a lens component and an elastic arm, and the elastic arm includes:

[0009] A fixing member connected to the lens component;

[0010] A transverse moving member movably connected to the fixing member along a first direction;

[0011] A vertical moving member movably connected to the transverse moving member along a second direction, the first direction and the second direction form an included angle, and a clamping portion is provided at the bottom of the vertical moving member, and the clamping portion is used for clamping and fixing with an infrared handheld device.

[0012] Optionally, a first elastic member is provided between the fixing member and the transverse moving member, and the first elastic member is used to provide an elastic force for the transverse moving member to move in a direction close to the lens component;

[0013] A second elastic member is provided between the vertical moving member and the horizontal moving member, and the second elastic member is configured to provide an elastic force for the vertical moving member to move in a direction close to the horizontal moving member.

[0014] Optionally, the fixing member is provided with at least two first limiting portions arranged in parallel, and at least a part of the first elastic member is arranged between two adjacent first limiting portions to limit the telescopic direction of the first elastic member through the side surfaces of the first limiting portions.

[0015] Optionally, the horizontal moving member is provided with a first abutting surface, and the first abutting surface is configured to abut and limit against the end of the first limiting portion when the first elastic member is in the initial position.

[0016] Optionally, a second limiting portion is provided at one end of the fixing member away from the lens assembly, and the horizontal moving member is provided with a third limiting portion for cooperating with the second limiting portion to limit the maximum position of the horizontal moving member away from the lens assembly.

[0017] Optionally, the side surface of the horizontal moving member is in sliding fit with the first side portion of the second limiting portion.

[0018] Optionally, the fixing member is provided with a first fixing portion, the horizontal moving member is provided with a second fixing portion, one end of the first elastic member is connected to the first fixing portion, and the other end is connected to the second fixing portion.

[0019] Optionally, it further includes a horizontal moving cover plate, which is connected to the fixing member, and the horizontal moving member is located between the fixing member and the horizontal moving cover plate.

[0020] Optionally, one of the horizontal moving cover plate and the fixing member is provided with a first buckling position, and the other is provided with a second buckling position for buckling with the first buckling position.

[0021] Optionally, the horizontal moving cover plate is provided with a first limiting and guiding surface for guiding and limiting the translational movement of the horizontal moving member along the first direction.

[0022] Optionally, the horizontal moving cover plate is provided with a fourth limiting portion for limiting the end of the first elastic member.

[0023] Optionally, the connection structure between the vertical moving member and the horizontal moving member is the same as the connection structure between the horizontal moving member and the fixing member.

[0024] Optionally, the fixing member is detachably connected to the lens assembly.

[0025] An infrared handheld device includes any one of the above-mentioned external lens devices.

[0026] The external lens device provided by the present utility model has the following beneficial effects:

[0027] The transverse moving member can adjust its position relative to the fixed member along the first direction, and the vertical moving member can adjust its position relative to the transverse moving member along the second direction. When the transverse moving member moves relative to the fixed member along the first direction, it can drive the vertical moving member to move along the first direction together, so that the position of the vertical moving member can be adjusted along both the first direction and the second direction. That is, finally, the position of the clamping portion at the bottom of the vertical moving member can be adjusted along both the first direction and the second direction, so that the clamping portion can adapt to infrared handheld devices of different shapes and sizes.

[0028] It can be seen that the elastic arm of the external lens device is an adjustable elastic arm. By adjusting the position of the transverse moving member, the size of different infrared handheld devices along the first direction can be adapted. By adjusting the position of the vertical moving member, the size of different infrared handheld devices along the second direction can be adapted. Thus, by adjusting the positions of the transverse moving member and the vertical moving member, the elastic arm can be adapted to a variety of styles of infrared handheld devices. That is, multiple infrared handheld devices can share the same external lens device, improving the versatility of the external lens device. Therefore, it is possible to avoid designing a dedicated set of external lens devices for each type of infrared handheld device, thereby reducing costs.

[0029] The infrared handheld device provided by the present utility model includes the above external lens device and has the same beneficial effects as the above external lens device. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or related technologies, the following will briefly introduce the drawings required for use in the description of the embodiments or related technologies. Obviously, the drawings in the following description are only the embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the provided drawings.

[0031] Figure 1 Structural schematic diagram of the external lens device provided by a specific embodiment of the present utility model;

[0032] Figure 2 Structural schematic diagram when the external lens device is applied to an infrared handheld device;

[0033] Figure 3 Exploded view of the elastic arm;

[0034] Figure 4 Structural schematic diagram of the fixed member from the first perspective;

[0035] Figure 5 Structural schematic diagram of the fixed member from the second perspective;

[0036] Figure 6 Structural schematic diagram of the transverse moving member from the first perspective;

[0037] Figure 7 It is a schematic structural diagram of the second perspective of the horizontal moving part;

[0038] Figure 8 It is a schematic structural diagram of the vertical moving part;

[0039] Figure 9 It is a schematic structural diagram of the horizontal moving cover plate;

[0040] Figure 10 It is a schematic structural diagram of the vertical moving cover plate;

[0041] Figure 11 It is a schematic structural diagram before the horizontal moving cover plate and the fixing part are assembled;

[0042] Figure 12 It is a schematic structural diagram before the vertical moving cover plate and the horizontal moving part are assembled;

[0043] Figure 13 It is a cross-sectional view of the external lens device;

[0044] Figure 14 It is a schematic structural diagram before the elastic arm, the lens and the support part are assembled.

[0045] Reference numerals:

[0046] 1 - lens assembly; 11 - support part; 12 - lens; 13 - first fastener; 2 - elastic arm; 21 - fixing part; 211 - first limiting part; 212 - second limiting part; 2121 - first side part; 213 - first fixing part; 214 - second buckling position; 22 - horizontal moving part; 221 - first abutting surface; 222 - third limiting part; 223 - second fixing part; 224 - fifth limiting part; 225 - sixth limiting part; 2251 - second side part; 226 - third fixing part; 227 - fourth buckling position; 23 - vertical moving part; 231 - clamping position; 232 - second abutting surface; 233 - seventh limiting part; 234 - fourth fixing part; 24 - first elastic part; 25 - second elastic part; 26 - horizontal moving cover plate; 261 - first buckling position; 262 - first limiting guiding surface; 263 - fourth limiting part; 27 - vertical moving cover plate; 271 - third buckling position; 272 - second limiting guiding surface; 273 - eighth limiting part; 3 - infrared handheld device. Detailed implementation manners

[0047] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0048] The core of the present utility model is to provide an external lens device with good versatility. Another core of the present utility model is to provide an infrared handheld device including the above-mentioned external lens device, and the external lens device thereof has versatility.

[0049] Please refer to Figure 1 and Figure 2 , an embodiment of the present utility model provides an external lens device, including a lens assembly 1 and an elastic arm 2. The elastic arm 2 includes a fixing member 21, a transverse moving member 22 and a vertical moving member 23. The fixing member 21 is connected to the lens assembly 1; the transverse moving member 22 is connected to the fixing member 21 so as to be movable along a first direction; the vertical moving member 23 is connected to the transverse moving member 22 so as to be movable along a second direction. The first direction and the second direction form an angle. A clamping portion 231 is provided at the bottom of the vertical moving member 23, and the clamping portion 231 is used for clamping and fixing with the infrared handheld device 3.

[0050] That is to say, the transverse moving member 22 can adjust its position relative to the fixing member 21 along the first direction, and the vertical moving member 23 can adjust its position relative to the transverse moving member 22 along the second direction. When the transverse moving member 22 moves relative to the fixing member 21 along the first direction, it can drive the vertical moving member 23 to move together along the first direction, so that the position of the vertical moving member 23 along the first direction and the second direction can be adjusted. That is, finally, the position of the clamping portion 231 at the bottom of the vertical moving member 23 can be adjusted along the first direction and the second direction, so that the clamping portion 231 can adapt to infrared handheld devices 3 with different shapes and sizes.

[0051] It can be seen that the elastic arm 2 of the external lens device is an adjustable elastic arm 2. By adjusting the position of the transverse moving member 22, the size of different infrared handheld devices 3 along the first direction can be adapted. By adjusting the position of the vertical moving member 23, the size of different infrared handheld devices 3 along the second direction can be adapted. Thus, by adjusting the positions of the transverse moving member 22 and the vertical moving member 23, the elastic arm 2 can adapt to various styles of infrared handheld devices 3. That is, multiple infrared handheld devices 3 can share the same external lens device, improving the versatility of the external lens device. Therefore, it is possible to avoid designing a set of dedicated external lens devices for each type of infrared handheld device 3, thereby reducing costs.

[0052] It should be noted that the specific orientations of the first direction and the second direction in this embodiment are not limited, as long as the first direction and the second direction form an angle and belong to different directions. In some embodiments, the first direction is perpendicular to the second direction. For example, the first direction is the horizontal direction and the second direction is the vertical direction. By adjusting the transverse moving member 22, the external lens device can be adapted to the size in the width direction of the external handheld device, and by adjusting the vertical moving member 23, the external lens device can be adapted to the size in the height direction of the external handheld device.

[0053] In addition, the inventors of the present application found that: in the related art, when the external lens device is fixed by the elastic arm 2, the problem of insecure fixation easily occurs. Especially when the weight of the external lens device is large, combined with problems such as dimensional tolerances, there is a risk of the external lens device falling off.

[0054] To solve the technical problem of insecure fixation, please refer to Figure 3 , in some embodiments, a first elastic member 24 is provided between the fixing member 21 and the transverse moving member 22. The first elastic member 24 is used to provide an elastic force for the transverse moving member 22 to move in a direction close to the lens assembly 1; a second elastic member 25 is provided between the vertical moving member 23 and the transverse moving member 22. The second elastic member 25 is used to provide an elastic force for the vertical moving member 23 to move in a direction close to the transverse moving member 22. In some embodiments, the first elastic member 24 and the second elastic member 25 are respectively tension springs. When in use, by applying an external force to the transverse moving member 22 to make the transverse moving member 22 move relative to the fixing member 21 and move the transverse moving member 22 away from the lens assembly 1, the transverse moving member 22 stretches the first elastic member 24 to generate an elastic force. When the external force applied to the transverse moving member 22 is removed, the elastic force of the first elastic member 24 makes the transverse moving member 22 have a tendency to move in the opposite direction relative to the fixing member 21, that is, makes the transverse moving member 22 always have a tendency to approach the lens assembly 1. By applying an external force to the vertical moving member 23 to make the vertical moving member 23 move relative to the transverse moving member 22 away from the transverse moving member 22, the vertical moving member 23 stretches the second elastic member 25 to generate an elastic force. When the external force applied to the vertical moving member 23 is removed, the elastic force of the second elastic member 25 makes the vertical moving member 23 have a tendency to move in the opposite direction relative to the transverse moving member 22, that is, makes the vertical moving member 23 always have a tendency to approach the transverse moving member 22. Of course, in some other embodiments, the first elastic member 24 and the second elastic member 25 can also be compression springs respectively, that is, the transverse moving member 22 compresses the first elastic member 24 when moving away from the lens assembly 1, and the vertical moving member 23 compresses the second elastic member 25 when moving away from the transverse moving member 22.

[0055] That is to say, in this embodiment, by providing the first elastic member 24 and the second elastic member 25, and using the first elastic member 24 and the second elastic member 25 to apply elastic forces to the transverse moving member 22 and the vertical moving member 23 respectively, the elastic forces finally act on the vertical moving member 23 and the clamping portion 231 at its bottom, so that the clamping portion 231 clamps the infrared handheld device 3, improving the reliability of the connection between the external lens device and the infrared handheld device 3 and preventing the risk of the external lens device falling off.

[0056] It should be noted that the specific structures, quantities, distributions, etc. of the first elastic member 24 and the second elastic member 25 are not limited in this embodiment. In some embodiments, the first elastic member 24 and the second elastic member 25 are springs respectively. The quantities of the first elastic member 24 and the second elastic member 25 can be one respectively, or at least two respectively.

[0057] Furthermore, in order to improve the smoothness of the telescopic movement of the first elastic member 24, please refer to Figure 4 and Figure 11 . In some embodiments, the fixing member 21 is provided with at least two first limiting portions 211 arranged in parallel (it can be understood that the extending direction of the first limiting portion 211 is the same as the first direction). At least a part of the first elastic member 24 is arranged between two adjacent first limiting portions 211 to limit the telescopic direction of the first elastic member 24 through the side surfaces of the first limiting portions 211. That is to say, when the first elastic member 24 expands and contracts, it expands and contracts along the direction defined by the side surfaces of the first limiting portions 211, which is beneficial to ensuring the correctness of the telescopic direction of the first elastic member 24 and the stability of the telescopic movement, and further improving the smoothness of the transverse movement member 22 moving along the first direction. It can be understood that the quantity of the first limiting portions 211 is related to the quantity of the first elastic member 24. When the quantity of the first elastic member 24 is one, the quantity of the first limiting portions 211 is two, and one first elastic member 24 is located between the two first limiting portions 211. When the quantity of the first elastic member 24 is two, the quantity of the first limiting portions 211 can be three or four.

[0058] Furthermore, in order to define the limit position of the transverse movement member 22 when it is closest to the lens assembly 1, please refer to Figure 4 , Figure 6 and Figure 11 . In some embodiments, the transverse movement member 22 is provided with a first abutting surface 221, and the first abutting surface 221 is used to abut and limit against the end of the first limiting portion 211 when the first elastic member 24 is in the initial position. It should be noted that the first elastic member 24 being in the initial position means the position of the first elastic member 24 when the transverse movement member 22 is closest to the lens assembly 1. At this time, under the abutting and limiting of the first abutting surface 221 against the end of the first limiting portion 211, the transverse movement member 22 cannot continue to move in the direction close to the lens assembly 1 under the elastic force of the first elastic member 24, so that the transverse movement member 22 stays at the limit position when it is closest to the lens assembly 1. That is to say, at the initial position, the transverse movement member 22 is closest to the lens assembly 1. When it is necessary to adjust the transverse movement member 22, just pull the transverse movement member 22 in the direction away from the lens assembly 1.

[0059] In addition, in order to define the limit position of the transverse movement member 22 when it is farthest from the lens assembly 1, please refer to Figure 4 and Figure 6, in some embodiments, a second limiting portion 212 is provided at one end of the fixing member 21 away from the lens assembly 1, and the traversing member 22 is provided with a third limiting portion 222 for cooperating with the second limiting portion 212 to limit the position, so as to define the maximum position of the traversing member 22 away from the lens assembly 1. That is to say, when the traversing member 22 moves away from the lens assembly 1 relative to the fixing member 21 along the first direction, when the third limiting portion 222 moves to a position where it abuts against the second limiting portion 212, under the blocking action of the second limiting portion 212 on the third limiting portion 222, the traversing member 22 cannot continue to move, so that the traversing member 22 stays at the limit position when it is farthest from the lens assembly 1, realizing the limitation of the maximum traversing stroke of the traversing member 22, and at the same time preventing the traversing member 22 from detaching from the fixing member 21.

[0060] It should be noted that the specific structures and installation positions of the second limiting portion 212 and the third limiting portion 222 in this embodiment are not limited, as long as the two can cooperate to realize the limitation of the maximum stroke of the traversing member 22.

[0061] In some embodiments, the second limiting portion 212 is a first bending portion provided at one end of the fixing member 21 away from the lens assembly 1, and the first bending portion is formed by bending the end portions of the side plates on both sides of the fixing member 21 towards the direction in which the two side plates face each other. The third limiting portion 222 is a second bending portion provided at one end of the traversing member 22, and the second bending portion protrudes outwards from both sides of the traversing member 22.

[0062] Furthermore, in order to ensure the smoothness of the traversing member 22 moving in the first direction, please refer to Figure 4 and Figure 11 , in some embodiments, the side surface of the traversing member 22 is in sliding cooperation with the first side portion 2121 of the second limiting portion 212. That is to say, in this embodiment, the first side portion 2121 of the second limiting portion 212 is used to perform sliding limit on the traversing member 22 to define the translation direction of the traversing member 22, ensuring the correctness of the translation direction of the traversing member 22 and the movement stability.

[0063] In addition, the specific setting method of the first elastic member 24 in the above embodiment is not limited, as long as the first elastic member 24 can be arranged between the traversing member 22 and the fixing member 21.

[0064] Please refer to Figure 4 , Figure 6 and Figure 11, in some embodiments, the fixing member 21 is provided with a first fixing portion 213, the transverse moving member 22 is provided with a second fixing portion 223, one end of the first elastic member 24 is connected to the first fixing portion 213, and the other end of the first elastic member 24 is connected to the second fixing portion 223. That is to say, in this embodiment, by respectively providing the first fixing portion 213 and the second fixing portion 223 on the fixing member 21 and the transverse moving member 22, the fixing of both ends of the first elastic member 24 is realized, and further the first elastic member 24 is arranged between the fixing member 21 and the transverse moving member 22.

[0065] It should be noted that the specific structures of the first fixing portion 213 and the second fixing portion 223 in this embodiment are not limited, as long as the fixing of the first elastic member 24 can be realized. In some embodiments, the first fixing portion 213 is a first fixing column, the second fixing portion 223 is a first hook, the first elastic member 24 is a spring, and both ends of the first elastic member 24 are respectively hung on the first fixing column and the first hook. This structure is simple and convenient to implement. Considering the convenience of setting, in some embodiments, the first hook is arranged at the end of the transverse moving member 22. In this way, it is convenient to process the first hook structure.

[0066] In addition, in order to prevent at least part of the connection structure between the transverse moving member 22 and the fixing member 21 from being exposed, please refer to Figure 11 and Figure 13 , in some embodiments, a transverse moving cover plate 26 is further included, which is connected to the fixing member 21, and the transverse moving member 22 is located between the fixing member 21 and the transverse moving cover plate 26. That is to say, in this embodiment, by providing the transverse moving cover plate 26, at least part of the connection structure between the transverse moving member 22 and the fixing member 21 (such as the first elastic member 24, the first fixing portion 213, the second fixing portion 223, the first limiting portion 211, and the third limiting portion 222, etc.) is hidden between the fixing member 21 and the transverse moving cover plate 26. On the one hand, the structure is made simple and beautiful. On the other hand, it is beneficial to protect the transverse moving member 22 and the connection structure between the transverse moving member 22 and the fixing member 21, and improve the structural reliability.

[0067] It should be noted that the specific structure of the fixing member 21 in the embodiments of the present invention is not limited. In some embodiments, the fixing member 21 is a plate-shaped member. It is beneficial to make the fixing member 21 cooperate with the transverse moving cover plate 26 to realize a hidden design for part of the transverse moving member 22.

[0068] In addition, the specific connection manner between the transverse moving cover plate 26 and the fixing member 21 in this embodiment is not limited, as long as the connection between the transverse moving cover plate 26 and the fixing member 21 can be realized. Please refer to Figure 4 and Figure 9, in some embodiments, one of the transverse moving cover plate 26 and the fixing member 21 is provided with a first fastening position 261, and the other is provided with a second fastening position 214 for fastening with the first fastening position 261. That is to say, in this embodiment, the connection between the transverse moving cover plate 26 and the fixing member 21 is realized by the fastening of the first fastening position 261 and the second fastening position 214. This connection structure is simple, convenient to connect, and is a detachable connection method, which is convenient for the disassembly and assembly of the transverse moving cover plate 26 and the fixing member 21.

[0069] It should be noted that the specific structures of the first fastening position 261 and the second fastening position 214 in this embodiment are not limited, as long as they can be fastened to each other. For example, in some embodiments, the first fastening position 261 is a first buckle, and the second fastening position 214 is a first slot. By inserting the first buckle into the first slot, the connection between the transverse moving cover plate 26 and the fixing member 21 is realized.

[0070] In addition, in order to assist in the translational limit of the transverse moving member 22, please refer to Figure 9 , in some embodiments, the transverse moving cover plate 26 is provided with a first limiting and guiding surface 262, and the first limiting and guiding surface 262 is used for guiding and limiting the translational movement of the transverse moving member 22 along the first direction. That is to say, when the transverse moving member 22 translates along the first direction, the first limiting and guiding surface 262 can prevent the transverse moving member 22 from tilting, etc., so as to ensure that the transverse moving member 22 translates in a plane parallel to the first limiting and guiding surface 262, which is beneficial to improving the translational stability of the transverse moving member 22. The first limiting and guiding surface 262 and the first side portion 2121 of the second limiting portion 212 act together to make the translational movement of the transverse moving member 22 more accurate and smoother.

[0071] In addition, please continue to refer to Figure 9 , in some embodiments, the transverse moving cover plate 26 is provided with a fourth limiting portion 263, and the fourth limiting portion 263 is used for limiting the end portion of the first elastic member 24. That is to say, in this embodiment, the end portion of the first elastic member 24 is limited by the fourth limiting portion 263 to prevent the end portion of the first elastic member 24 from detaching from the fixing member 21 and / or the transverse moving member 22 after being connected to the fixing member 21 and / or the transverse moving member 22. It should be noted that the specific structure of the fourth limiting portion 263 in this embodiment is not limited, as long as it can prevent the end portion of the first elastic member 24 from detaching from the fixing member 21 and / or the transverse moving member 22. For example, in some embodiments, the fourth limiting portion 263 is a first limiting sleeve, and the first limiting sleeve is sleeved on the free end of the first fixing column on the fixing member 21 to prevent the end of the first elastic member 24 connected to the first fixing column from detaching from the first fixing column and ensure that the first elastic member 24 does not come out.

[0072] In addition, the connection structure between the vertical moving member 23 and the horizontal moving member 22 is not limited in the above embodiments, as long as the vertical moving member 23 can be movably connected to the horizontal moving member 22 along the second direction.

[0073] In some embodiments, the connection structure between the vertical moving member 23 and the horizontal moving member 22 is the same as the connection structure between the horizontal moving member 22 and the fixing member 21.

[0074] Please refer to Figure 4 and Figure 5 , in some embodiments, the horizontal moving member 22 is an L-shaped plate member, and the L-shaped plate member includes a first plate and a second plate. The first plate is used to be movably connected to the fixing member 21 along the first direction, and the second plate is used to be movably connected to the vertical moving member 23 along the second direction.

[0075] Further, in some embodiments, each structure of the right-angle surface of the L-shaped structure for movably connecting to the vertical moving member 23 can be the same as the corresponding structure of the fixing member 21; and each structure of the vertical moving member 23 for connecting to the horizontal moving member 22 can be the same as the corresponding structure of the horizontal moving member 22.

[0076] To improve the smoothness of the expansion and contraction of the second elastic member 25, please refer to Figure 7 and Figure 12 , in some embodiments, the horizontal moving member 22 is provided with at least two parallel fifth limiting portions 224 (the extending direction of the fifth limiting portion 224 is the same as the second direction), and at least a part of the second elastic member 25 is disposed between two adjacent fifth limiting portions 224 to limit the expansion and contraction direction of the second elastic member 25 through the side surface of the fifth limiting portion 224. That is to say, when the second elastic member 25 expands and contracts, it expands and contracts along the direction defined by the side surface of the second limiting portion 212, which is beneficial to ensuring the correctness of the expansion and contraction direction of the second elastic member 25 and the stability of the expansion and contraction, and further improving the smoothness of the movement of the vertical moving member 23 along the second direction. It can be understood that the number of the fifth limiting portions 224 is related to the number of the second elastic members 25. When the number of the second elastic members 25 is one, the number of the fifth limiting portions 224 is two, and one second elastic member 25 is located between the two fifth limiting portions 224; when the number of the second elastic members 25 is two, the number of the fifth limiting portions 224 can be three or four.

[0077] Further, to define the limit position of the vertical moving member 23 when it is closest to the horizontal moving member 22, please refer to Figure 7 , Figure 8 and Figure 12, in some embodiments, the vertical moving member 23 is provided with a second abutting surface 232, and the second abutting surface 232 is used to abut and limit the end of the fifth limiting portion 224 when the second elastic member 25 is in the initial position. It should be noted that the second elastic member 25 being in the initial position means the position of the second elastic member 25 when the vertical moving member 23 is closest to the horizontal moving member 22. At this time, under the abutting and limiting action of the second abutting surface 232 and the end of the fifth limiting portion 224, the vertical moving member 23 cannot continue to move in the direction closer to the horizontal moving member 22 under the elastic force of the second elastic member 25, so that the vertical moving member 23 stays at the limit position when it is closest to the horizontal moving member 22. That is to say, at the initial position, the vertical moving member 23 is closest to the horizontal moving member 22. When it is necessary to adjust the vertical moving member 23, the vertical moving member 23 can be pulled in the direction away from the horizontal moving member 22.

[0078] In addition, in order to define the limit position of the vertical moving member 23 when it is farthest from the horizontal member, please refer to Figure 7 , Figure 8 and Figure 12 , in some embodiments, one end of the horizontal moving member 22 is provided with a sixth limiting portion 225, and the vertical moving member 23 is provided with a seventh limiting portion 233 for cooperating with the sixth limiting portion 225 to limit the maximum position of the vertical moving member 23 away from the horizontal moving member 22. That is to say, when the vertical moving member 23 moves away from the horizontal moving member 22 relative to the horizontal moving member 22 along the second direction, when the seventh limiting portion 233 moves to the position where it abuts against the sixth limiting portion 225, under the blocking action of the sixth limiting portion 225 on the seventh limiting portion 233, the vertical moving member 23 cannot move any further, so that the vertical moving member 23 stays at the limit position when it is farthest from the horizontal moving member 22, realizing the limit of the maximum stroke of the vertical moving member 23, and at the same time preventing the vertical moving member 23 from detaching from the horizontal moving member 22.

[0079] It should be noted that in this embodiment, the specific structures and installation positions of the sixth limiting portion 225 and the seventh limiting portion 233 are not limited, as long as the two can cooperate to realize the limit of the maximum stroke of the vertical moving member 23.

[0080] In some embodiments, the sixth limiting portion 225 is a third bending portion provided at one end of the horizontal moving member 22, and the third bending portion is formed by bending the ends of the side plates on both sides of the horizontal moving member 22 towards the direction in which the two side plates face each other. The seventh limiting portion 233 is a fourth bending portion provided at one end of the vertical moving member 23, and the fourth bending portion protrudes outward from both sides of the vertical moving member 23.

[0081] Furthermore, in order to ensure the smoothness of the vertical moving member 23 moving horizontally along the second direction, please refer to Figure 7 and Figure 12, in some embodiments, the side surface of the vertical moving member 23 is in sliding fit with the second side portion 2251 of the sixth limiting portion 225. That is to say, in this embodiment, the second side portion 2251 of the sixth limiting portion 225 is used to slide limit the vertical moving member 23 to define the translation direction of the vertical moving member 23, ensuring the correctness of the translation direction of the vertical moving member 23 and the movement stability.

[0082] In addition, the specific setting manner of the second elastic member 25 in the above embodiment is not limited, as long as the second elastic member 25 can be arranged between the horizontal moving member 22 and the vertical moving member 23.

[0083] Please refer to Figure 7 , Figure 8 and Figure 12 , in some embodiments, the horizontal moving member 22 is provided with a third fixing portion 226, the vertical moving member 23 is provided with a fourth fixing portion 234, one end of the second elastic member 25 is connected to the third fixing portion 226, and the other end of the second elastic member 25 is connected to the fourth fixing portion 234. That is to say, in this embodiment, by respectively providing the third fixing portion 226 and the fourth fixing portion on the horizontal moving member 22 and the vertical moving member 23, the fixation of both ends of the second elastic member 25 is realized, and then the second elastic member 25 is arranged between the horizontal moving member 22 and the vertical moving member 23.

[0084] It should be noted that the specific structures of the third fixing portion 226 and the fourth fixing portion 234 in this embodiment are not limited, as long as the fixation of the second elastic member 25 can be realized. In some embodiments, the third fixing portion 226 is a second fixing column, the fourth fixing portion 234 is a second hook, the second elastic member 25 is a spring, and both ends of the second elastic member 25 are respectively hung on the second fixing column and the second hook. This structure is simple and convenient to realize. Considering the convenience of setting, in some embodiments, the second hook is arranged at the end of the vertical moving member 23. In this way, it is convenient to process the second hook structure.

[0085] In addition, in order to prevent at least part of the connection structure between the vertical moving member 23 and the horizontal moving member 22 from being exposed, please refer to Figure 10 , Figure 12 and Figure 13 , in some embodiments, a vertical moving cover plate 27 is further included. The vertical moving cover plate 27 is connected to the horizontal moving member 22, and the vertical moving member 23 is located between the horizontal moving member 22 and the vertical moving cover plate 27. That is to say, in this embodiment, by providing the vertical moving cover plate 27, at least part of the connection structure between the vertical moving member 23 and the horizontal moving member 22 (such as the second elastic member 25, the third fixing portion 226, the fourth fixing portion 234, the fifth limiting portion 224, and the seventh limiting portion 233, etc.) is hidden between the horizontal moving member 22 and the vertical moving cover plate 27. On the one hand, the structure is made simple and beautiful. On the other hand, it is beneficial to protect the vertical moving member 23 and the connection structure between the vertical moving member 23 and the horizontal moving member 22, improving the structural reliability.

[0086] In addition, the specific connection method between the vertically moving cover plate 27 and the horizontally moving member 22 in this embodiment is not limited, as long as the connection between the vertically moving cover plate 27 and the horizontally moving member 22 can be realized. Please refer to Figure 7 and Figure 10 , in some embodiments, one of the vertically moving cover plate 27 and the horizontally moving member 22 is provided with a third latching position 271, and the other is provided with a fourth latching position 227 for latching with the third latching position 271. That is to say, in this embodiment, the connection between the vertically moving cover plate 27 and the horizontally moving member 22 is realized by latching the third latching position 271 with the fourth latching position 227. This connection structure is simple and convenient, and is a detachable connection method, which is convenient for the disassembly and assembly of the vertically moving cover plate 27 and the horizontally moving member 22.

[0087] It should be noted that the specific structures of the third latching position 271 and the fourth latching position 227 in this embodiment are not limited, as long as the latching of the two can be realized. For example, in some embodiments, the third latching position 271 is a second buckle, and the fourth latching position 227 is a second slot, and the connection between the vertically moving cover plate 27 and the horizontally moving member 22 is realized by inserting the second buckle into the second slot.

[0088] In addition, in order to assist in the translational limit of the vertically moving member 23, please refer to Figure 10 , in some embodiments, the vertically moving cover plate 27 is provided with a second limiting and guiding surface 272, and the second limiting and guiding surface 272 is used for guiding and limiting the translational movement of the vertically moving member 23 along the second direction. That is to say, when the vertically moving member 23 translates along the second direction, the second limiting and guiding surface 272 can prevent the vertically moving member 23 from tilting, etc., so as to ensure that the vertically moving member 23 translates in a plane parallel to the second limiting and guiding surface 272, which is beneficial to improving the translational stability of the vertically moving member 23. The second limiting and guiding surface 272 and the second side portion 2251 of the sixth limiting portion 225 act together to make the translational movement of the vertically moving member 23 more accurate and smoother.

[0089] In addition, please refer to Figure 10, in some embodiments, the vertically moving cover plate 27 is provided with an eighth limiting portion 273, and the eighth limiting portion 273 is used to limit the end portion of the second elastic member 25. That is to say, in this embodiment, the end portion of the second elastic member 25 is limited by the eighth limiting portion 273 to prevent the end portion of the second elastic member 25 from detaching from the vertically moving member 23 and / or the horizontally moving member 22 after being connected to the vertically moving member 23 and / or the horizontally moving member 22 due to insecure connection. It should be noted that the specific structure of the eighth limiting portion 273 in this embodiment is not limited, as long as it can prevent the end portion of the second elastic member 25 from detaching from the fixing member 21 and / or the horizontally moving member 22. For example, in some embodiments, the eighth limiting portion 273 is a second limiting sleeve, and the second limiting sleeve is sleeved on the free end of the second fixing post on the horizontally moving member 22 to prevent the end of the second elastic member 25 connected to the second fixing post from detaching from the second fixing post and ensure that the second elastic member 25 does not come out.

[0090] It should be noted that the specific connection manner between the fixing member 21 and the lens assembly 1 in the above various embodiments is not limited, as long as the connection between the fixing member 21 and the lens assembly 1 can be achieved. That is, the fixing member 21 and the lens assembly 1 can be fixedly connected or detachably connected.

[0091] In order to further improve the adaptability of the external lens device, in some embodiments, the fixing member 21 and the lens assembly 1 are detachably connected. In this way, by disassembling the fixing member 21 and the lens assembly 1, the replacement of the lens assembly 1 can be realized. That is, the elastic arm 2 can be commonly used for different styles of infrared handheld devices 3, and by replacing different lens assemblies 1, the lens assembly 1 can be adapted to the infrared handheld device 3. Therefore, the versatility of the external lens device can be further improved, and by replacing different lens assemblies 1, the external lens device can be adapted to more infrared handheld devices 3.

[0092] It should be noted that the specific detachable connection structure between the fixing member 21 and the lens assembly 1 in this embodiment is not limited, as long as the detachable connection between the fixing member 21 and the lens assembly 1 can be achieved.

[0093] Please refer to Figure 14 , in some embodiments, the lens assembly 1 includes a support member 11 and a lens 12 provided on the support member 11, and the fixing member 21 is connected to the support member 11 through a first fastening member 13. For example, the first fastening member 13 can be a screw. This connection structure is simple and convenient to implement.

[0094] In addition, the specific connection manner between the lens 12 and the support member 11 in this embodiment is not limited. For example, in some embodiments, the lens 12 can be fixed to the support member 11 by a second fastening member, dispensing, welding, or thermal connection, etc.

[0095] In addition to the above external lens device, the present utility model further provides an infrared handheld device 3 including the external lens device disclosed in the above embodiment. For the structures of other parts of the infrared handheld device 3, reference may be made to the related art and will not be elaborated herein.

[0096] The focus of this embodiment lies in: adopting the external lens device disclosed in any one of the above embodiments, which has the same beneficial effects as the external lens device and will not be elaborated herein.

[0097] It should also be noted that in this specification, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0098] In this specification, the various embodiments are described in a progressive manner. The key point of each embodiment is to illustrate the differences from other embodiments. For the same or similar parts among the various embodiments, reference may be made to each other.

[0099] The above has introduced in detail the external lens device and the infrared handheld device 3 provided by the present utility model. Specific examples are used herein to elaborate on the principle and implementation manner of the present utility model. The description of the above embodiments is only used to help understand the method and its core idea of the present utility model. It should be pointed out that for those of ordinary skill in the art in this technical field, without departing from the principle of the present utility model, several improvements and modifications can be made to the present utility model, and these improvements and modifications also fall within the protection scope of the present utility model.

Claims

1. An external lens device, characterized in that, It includes a lens assembly (1) and a spring arm (2), and the spring arm (2) includes: A fixing member (21) connected to the lens assembly (1); A transverse moving member (22) connected to the fixing member (21) so as to be movable along a first direction; A vertical moving member (23) connected to the transverse moving member (22) so as to be movable along a second direction. The first direction and the second direction form an angle. A clamping portion (231) is provided at the bottom of the vertical moving member (23), and the clamping portion (231) is used for clamping and fixing with an infrared handheld device (3).

2. The external lens device according to claim 1, characterized in that, A first elastic member (24) is provided between the fixing member (21) and the transverse moving member (22), and the first elastic member (24) is used for providing an elastic force to the transverse moving member (22) to move in a direction close to the lens assembly (1); A second elastic member (25) is provided between the vertical moving member (23) and the transverse moving member (22), and the second elastic member (25) is used for providing an elastic force to the vertical moving member (23) to move in a direction close to the transverse moving member (22).

3. The external lens device according to claim 2, wherein At least two first limiting portions (211) arranged in parallel are provided on the fixing member (21), and at least a part of the first elastic member (24) is arranged between two adjacent first limiting portions (211) to limit the telescopic direction of the first elastic member (24) through the side surfaces of the first limiting portions (211).

4. The external lens device according to claim 3, wherein The transverse moving member (22) is provided with a first abutting surface (221), and the first abutting surface (221) is used for abutting and limiting with the end of the first limiting portion (211) when the first elastic member (24) is in the initial position.

5. The external lens device according to claim 1, characterized in that, A second limiting portion (212) is provided at one end of the fixing member (21) away from the lens assembly (1), and the transverse moving member (22) is provided with a third limiting portion (222) for cooperating with the second limiting portion (212) to limit the maximum position of the transverse moving member (22) away from the lens assembly (1).

6. The external lens device according to claim 5, wherein The side surface of the transverse moving member (22) is in sliding fit with the first side portion (2121) of the second limiting portion (212).

7. The external lens device according to claim 2, characterized in that, The fixing member (21) is provided with a first fixing portion (213), and the transverse moving member (22) is provided with a second fixing portion (223). One end of the first elastic member (24) is connected to the first fixing portion (213), and the other end is connected to the second fixing portion (223).

8. The external lens device according to claim 2, wherein, It further includes a transverse moving cover plate (26) connected to the fixing member (21), and the transverse moving member (22) is located between the fixing member (21) and the transverse moving cover plate (26).

9. The external lens device according to claim 8, characterized in that, One of the transverse moving cover plate (26) and the fixing member (21) is provided with a first buckling position (261), and the other is provided with a second buckling position (214) for buckling with the first buckling position (261).

10. The external lens device according to claim 8, characterized in that, The transverse moving cover plate (26) is provided with a first limiting and guiding surface (262) for guiding and limiting the translational movement of the transverse moving member (22) along the first direction.

11. The external lens device according to claim 8, wherein The transverse moving cover plate (26) is provided with a fourth limiting portion (263) for limiting the end of the first elastic member (24).

12. The external lens device according to any one of claims 1-11, characterized in that, The connection structure between the vertical moving member (23) and the horizontal moving member (22) is the same as the connection structure between the horizontal moving member (22) and the fixing member (21).

13. The external lens device according to any one of claims 1-11, characterized in that, The fixing member (21) is detachably connected to the lens assembly (1).

14. An infrared handheld device, characterized in that, An external lens device according to any one of claims 1-13 is included.

Images