Optical path adjusting structure of infrared wideband detector

Abstract

The utility model relates to a kind of optical path adjusting structures, specifically a kind of optical path adjusting structure of infrared wide-width detector, including shell;Fixed mounting baffle in shell;Still including coarse adjustment frame, slidingly installed in shell;Fine adjustment frame, slidingly installed in coarse adjustment frame;Fine adjustment frame is used for fixed mounting optical path system;Knob, rotationally installed on shell;Coarse adjustment piece, coarse adjustment piece can drive coarse adjustment frame to slide in shell when action;Fine adjustment piece, fine adjustment piece can drive fine adjustment frame to slide in coarse adjustment frame when action;Control piece, control piece can cooperate with coarse adjustment piece or fine adjustment piece;To drive coarse adjustment piece or fine adjustment piece action;By switching the cooperation state of control piece and coarse adjustment piece and fine adjustment piece, the precision adjustment of optical path system is realized;And after adjusting is completed, control piece will be disengaged from the cooperation with coarse adjustment piece and fine adjustment piece, can avoid the position deviation of optical path system due to environmental interference after adjusting is completed, to adjust the stability of detector.

Description

Technical Field

[0001] This utility model relates to an optical path adjustment structure, specifically an optical path adjustment structure for an infrared wide-band detector. Background Technology

[0002] An infrared wide-format detector is a device used to detect the width of objects. Based on the principle of infrared radiation, it achieves non-contact measurement and supports large-format detection. Its core function is to sense the edge position of an object through infrared radiation and combine this with geometric calculations to eliminate interference factors (such as object tilting or warping), thereby acquiring width data in real time. Because it does not directly contact the object, the adjustment of its optical path system is particularly important, directly affecting the detection accuracy.

[0003] Common optical path adjustments include adjusting the detection range and detection area, as well as adjusting the optical path system's calculation correction system. Typically, coarse and fine adjustment structures are used to adjust the detection area, including multiple adjustment knobs and adjustment structures directly connected to the adjustment knobs. By turning the coarse adjustment knob, the optical path system is moved quickly closer to or further away from the object being measured through the coarse adjustment structure. When the distance between the optical path system and the object is approximately appropriate, the fine adjustment knob is turned to move the optical path system slowly through the fine adjustment structure for precise positioning.

[0004] Typically, the knob is directly exposed to the detector and is easily affected by environmental factors such as collisions, vibrations generated during mechanical operation, and accidental human contact, which can easily cause the knob to rotate. Furthermore, since the knob is directly connected to the coarse or fine adjustment structure, rotating the knob will change the detection area or detection range of the optical path system, which is not conducive to effective control of product quality. Utility Model Content

[0005] The purpose of this invention is to provide an optical path adjustment structure for an infrared wide-band detector to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An optical path adjustment structure for an infrared wide-band detector includes a housing; a partition is fixedly installed inside the housing;

[0008] It also includes a coarse adjustment frame, which is slidably mounted within the housing;

[0009] A fine-tuning frame is slidably installed within the coarse-tuning frame; the fine-tuning frame is used to fix the optical path system.

[0010] The knob is rotatably mounted on the housing;

[0011] A coarse adjustment component, which, when activated, can cause the coarse adjustment frame to slide within the housing;

[0012] A fine-tuning component, which, when activated, can cause the fine-tuning frame to slide within the coarse-tuning frame;

[0013] A control component that can cooperate with the coarse adjustment component or the fine adjustment component to drive the coarse adjustment component or the fine adjustment component to move.

[0014] The optical path adjustment structure of the infrared wide-span detector as described above: the coarse adjustment component includes a large threaded sleeve fixedly installed on the coarse adjustment frame; a first lead screw is rotatably installed on the housing and threadedly connected to the large threaded sleeve.

[0015] The optical path adjustment structure of the infrared wide-span detector as described above: the fine adjustment component includes a small threaded sleeve fixedly installed on the fine adjustment frame; a second lead screw thread that is threadedly connected to the small threaded sleeve is rotatably installed on the coarse adjustment frame.

[0016] The optical path adjustment structure of the infrared wide-span detector as described above: the pitch of the first lead screw is greater than the pitch of the second lead screw.

[0017] The optical path adjustment structure of the infrared wide-span detector as described above includes: a control component comprising a rotating rod rotatably mounted on the housing; the rotating rod being fixedly connected to the knob; two sets of symmetrically arranged fixed turntables fixedly mounted on the rotating rod; a first turntable fixedly connected to the first lead screw being rotatably mounted on the partition plate; a second turntable being rotatably mounted on the housing; multiple sets of toothed blocks being fixedly mounted on the multiple sets of fixed turntables, the first turntable, and the second turntable; and the multiple sets of fixed turntables respectively cooperating with the first turntable and the second turntable; a rotating sleeve rotatably mounted on the partition plate and slidingly engaging with the second lead screw; a large gear being fixedly mounted on the rotating sleeve; and a small gear meshing with the large gear being fixedly mounted on the second turntable.

[0018] The optical path adjustment structure of the infrared wide-span detector as described above includes: the control component further includes a connecting rod rotatably mounted on the rotating rod; a telescopic column is fixedly mounted on the other end of the connecting rod; a fixed sleeve that is slidably connected to the telescopic column is fixedly mounted on both the partition and the housing; a spring is provided inside the fixed sleeve; the two ends of the spring respectively abut against the fixed sleeve and the telescopic column.

[0019] The optical path adjustment structure of the infrared wide-angle detector as described above: multiple sets of protrusions are fixedly installed on the outer surface of the knob.

[0020] Compared with the prior art, the beneficial effects of this utility model are: by switching the cooperation state of the control component with the coarse adjustment component and the fine adjustment component, the precision adjustment of the optical path system can be achieved; and after the adjustment is completed, the control component will disengage from both the coarse adjustment component and the fine adjustment component, which can avoid the position shift of the optical path system due to environmental interference after the adjustment is completed, thereby improving the stability of the detector. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the optical path adjustment structure of an infrared wide-band detector.

[0022] Figure 2 This is a schematic diagram of the coarse adjustment frame in the optical path adjustment structure of an infrared wide-span detector.

[0023] Figure 3 This is a schematic diagram of the fine-tuning frame in the optical path adjustment structure of an infrared wide-span detector.

[0024] Figure 4 This is a schematic diagram of the first and second lead screws in the optical path adjustment structure of an infrared wide-span detector.

[0025] Figure 5 for Figure 4 A schematic diagram of the structure at point A in the middle.

[0026] In the diagram: 1. Shell; 101. Partition;

[0027] 2. Coarse adjustment frame; 201. Large threaded sleeve;

[0028] 3. First turntable;

[0029] 4. First lead screw column;

[0030] 5. Fine-tuning frame; 501. Small threaded sleeve;

[0031] 6. Rotate the sleeve; 601. Large gear;

[0032] 7. Second lead screw column;

[0033] 8. Rotating rod; 801. Fixed turntable;

[0034] 9. Second turntable; 901. Small gear;

[0035] 10. Knob;

[0036] 11. Connecting rod;

[0037] 12. Telescopic bollards;

[0038] 13. Fixing sleeve;

[0039] 14. Spring;

[0040] 15. Tooth block. Detailed Implementation

[0041] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0042] Please see Figures 1-5 As an embodiment of this utility model, the optical path adjustment structure of the infrared wide-angle detector includes a housing 1; a partition 101 is fixedly installed inside the housing 1;

[0043] It also includes a coarse adjustment frame 2, which is slidably installed inside the housing 1;

[0044] The fine-tuning frame 5 is slidably installed within the coarse-tuning frame 2; the fine-tuning frame 5 is used to fix the optical path system.

[0045] Knob 10 is rotatably mounted on the housing 1;

[0046] A coarse adjustment component, which, when activated, can cause the coarse adjustment frame 2 to slide within the housing 1;

[0047] The fine-tuning component, when activated, can drive the fine-tuning frame 5 to slide within the coarse-tuning frame 2;

[0048] A control component that can cooperate with the coarse adjustment component or the fine adjustment component to drive the coarse adjustment component or the fine adjustment component to move.

[0049] In this embodiment, housing 1 is used to fix the detector.

[0050] Adjusting the optical path system: First, apply external force to make the control component and the coarse adjustment component cooperate. At this time, the control component and the fine adjustment component are disengaged. Therefore, when the control component moves, it can drive the coarse adjustment component to move, thereby driving the coarse adjustment frame 2 to move closer to or away from the object to be detected along the length direction of the housing 1. This allows the optical path system to move closer to or away from the object to be detected quickly through the fine adjustment frame 5, so as to achieve a rough adjustment of the optical path system and avoid the detection range being limited due to the distance between the object to be detected and the optical path system being too small or too large.

[0051] After the coarse adjustment component completes its approximate adjustment, an external force is applied to disengage the control component from the coarse adjustment component and engage the control component with the fine adjustment component. Therefore, when the control component moves, it can drive the fine adjustment component to move, thereby driving the fine adjustment frame 5 to move closer to or away from the object to be detected along the length of the coarse adjustment frame 2. This causes the optical path system to slowly move closer to or away from the object to be detected, thereby achieving fine adjustment of the optical path system and improving detection accuracy.

[0052] By switching the engagement state of the control unit with the coarse and fine adjustment units, the precision adjustment of the optical path system can be achieved. After the adjustment is completed, the control unit will disengage from both the coarse and fine adjustment units, which can prevent the optical path system from shifting due to environmental interference after the adjustment, thereby improving the stability of the detector.

[0053] As a further embodiment of this utility model, the coarse adjustment component includes a large threaded sleeve 201 fixedly installed on the coarse adjustment frame 2; a first lead screw 4, which is threadedly connected to the large threaded sleeve 201, is rotatably installed on the housing 1.

[0054] In this embodiment, when the control component and the coarse adjustment component work together, the control component will drive the first lead screw 4 to rotate when it is activated. This will cause the large threaded sleeve 201 to move along the length of the first lead screw 4 through the threaded engagement between the first lead screw 4 and the large threaded sleeve 201. This will cause the coarse adjustment frame 2 to move closer to or further away from the object to be detected, thereby quickly adjusting the detection area (detection range) of the optical path system. This will allow for a rough adjustment of the optical path system and prevent the detection range from being limited due to the distance between the object to be detected and the optical path system being too small or too large.

[0055] As a further embodiment of this utility model, the fine-tuning component includes a small threaded sleeve 501 fixedly installed on the fine-tuning frame 5; a second lead screw 7, which is threadedly connected to the small threaded sleeve 501, is rotatably installed on the coarse-tuning frame 2.

[0056] In this embodiment, when the control component and the fine-tuning component work together, the control component will drive the second lead screw 7 to rotate when it is activated. Thus, through the threaded engagement between the second lead screw 7 and the small threaded sleeve 501, the small threaded sleeve 501 is driven to move along the length direction of the second lead screw 7, thereby driving the optical path system to slowly approach or move away from the object to be detected, so as to achieve fine adjustment of the optical path system and improve detection accuracy.

[0057] As a further embodiment of this invention, the pitch of the first lead screw 4 is greater than the pitch of the second lead screw 7.

[0058] In this embodiment, the pitch of the first lead screw 4 is greater than the pitch of the second lead screw 7; therefore, when the control component drives the first lead screw 4 to rotate one revolution, the large threaded sleeve 201 moves the coarse adjustment frame 2 a larger distance (coarse adjustment distance); while when the control component drives the second lead screw 7 to rotate one revolution, the small threaded sleeve 501 moves the fine adjustment frame 5 a smaller distance (fine adjustment distance), and much smaller than the coarse adjustment distance; thereby improving the accuracy of fine adjustment.

[0059] As a further embodiment of this utility model, the control component includes a rotating rod 8 rotatably mounted on the housing 1; the rotating rod 8 is fixedly connected to the knob 10; two sets of symmetrically arranged fixed turntables 801 are fixedly mounted on the rotating rod 8; a first turntable 3, fixedly connected to the first lead screw 4, is rotatably mounted on the partition plate 101; a second turntable 9 is rotatably mounted on the housing 1; multiple sets of tooth blocks 15 are fixedly mounted on the multiple sets of fixed turntables 801, the first turntable 3, and the second turntable 9; and the multiple sets of fixed turntables 801 respectively cooperate with the first turntable 3 and the second turntable 9; a rotating sleeve 6, which slides and engages with the second lead screw 7, is rotatably mounted on the partition plate 101; a large gear 601 is fixedly mounted on the rotating sleeve 6; and a small gear 901, meshing with the large gear 601, is fixedly mounted on the second turntable 9.

[0060] In this embodiment, coarse adjustment: an external force is applied to the knob 10 to make the fixed turntable 801 engage with the first turntable 3 (the toothed block 15 on the fixed turntable 801 meshes with the toothed block 15 on the first turntable 3); therefore, when the knob 10 is turned, the rotating rod 8 will rotate, thereby driving the first turntable 3 to rotate synchronously through the fixed turntable 801, thereby driving the first lead screw 4 to rotate, so as to realize the coarse adjustment of the optical path system.

[0061] Fine-tuning: Apply external force to knob 10 so that another fixed turntable 801 meshes with the second turntable 9 (the toothed block 15 on the fixed turntable 801 meshes with the toothed block 15 on the second turntable 9); therefore, turning knob 10 will drive the rotating rod 8 to rotate, thereby driving the second turntable 9 to rotate synchronously through the fixed turntable 801, thereby driving the pinion 901 to rotate, and driving the large gear 601 to rotate through meshing. The transmission ratio between the pinion 901 and the large gear 601 is small, so the fixed large gear 601 will rotate slowly, thereby driving the rotating sleeve 6 to rotate slowly, thereby driving the second lead screw 7 to rotate, thus achieving fine-tuning of the optical path system.

[0062] Furthermore, during the coarse adjustment process, the second lead screw 7 will slide inward or outward within the rotating sleeve 6.

[0063] By switching the engagement state of the control unit with the coarse and fine adjustment units, the precision adjustment of the optical path system can be achieved. After the adjustment is completed, the control unit will disengage from both the coarse and fine adjustment units, which can prevent the optical path system from shifting due to environmental interference after the adjustment, thereby improving the stability of the detector.

[0064] As a further embodiment of this utility model, the control component also includes a connecting rod 11 rotatably mounted on the rotating rod 8; a telescopic column 12 is fixedly mounted on the other end of the connecting rod 11; a fixed sleeve 13 that is slidably connected to the telescopic column 12 is fixedly mounted on both the partition plate 101 and the housing 1; a spring 14 is provided inside the fixed sleeve 13; the two ends of the spring 14 respectively abut against the fixed sleeve 13 and the telescopic column 12.

[0065] In this embodiment, during the process of applying external force to make the fixed turntable 801 cooperate with the first turntable 3 or the second turntable 9, the rotating rod 8 will drive the telescopic column 12 to move inward in a fixed sleeve 13 through the connecting rod 11, so as to increase the compression of the spring 14 in the fixed sleeve 13; at the same time, the telescopic column 12 will move outward in another fixed sleeve 13, so as to reduce the compression of the spring 14 in the fixed sleeve 13.

[0066] After adjustment, the applied external force is removed. At this time, under the action of the elastic force of the two springs 14, the telescopic column 12 will gradually reach the equilibrium position (the elastic force of the springs 14 causes the telescopic column 12 to move inward in one fixed sleeve 13 and outward in the other fixed sleeve 13 until the elastic force of the two springs 14 is equal). During this process, the fixed turntable 801 will disengage from the first turntable 3 or the second turntable 9. Therefore, when the knob 10 is rotated due to environmental interference, it will not be able to drive the first lead screw 4 and the second lead screw 7 to rotate, thereby ensuring that the detection accuracy of the optical path system remains stable.

[0067] As a further improvement of this utility model, multiple sets of protrusions are fixedly installed on the outer surface of the knob 10.

[0068] In this embodiment, the protrusion increases the coefficient of friction of the knob 10, thereby reducing the difficulty of turning the knob 10 and improving the convenience of adjusting the optical path system.

[0069] The above embodiments are exemplary and not restrictive. Therefore, without departing from the spirit or basic characteristics of this utility model, any technical solutions that can be implemented in other specific forms are included in this utility model.

Claims

1. An optical path adjustment structure for an infrared wide-span detector, comprising a housing (1); a partition (101) is fixedly installed inside the housing (1); Its features are, It also includes a coarse adjustment frame (2), which is slidably installed inside the housing (1); The fine-tuning frame (5) is slidably installed inside the coarse-tuning frame (2); the fine-tuning frame (5) is used to fix the optical path system. A knob (10) is rotatably mounted on the housing (1); The coarse adjustment component, when activated, can drive the coarse adjustment frame (2) to slide within the housing (1); Fine adjustment component, when the fine adjustment component is activated, can drive the fine adjustment frame (5) to slide within the coarse adjustment frame (2); A control component that can cooperate with the coarse adjustment component or the fine adjustment component to drive the coarse adjustment component or the fine adjustment component to move.

2. The optical path adjustment structure for an infrared wide-swath detector according to claim 1, characterized in that, The coarse adjustment component includes a large threaded sleeve (201) fixedly installed on the coarse adjustment frame (2); a first lead screw (4) that is threadedly connected to the large threaded sleeve (201) is rotatably installed on the housing (1).

3. The optical path adjustment structure for an infrared wide-swath detector according to claim 2, characterized in that, The fine adjustment component includes a small threaded sleeve (501) fixedly installed on the fine adjustment frame (5); a second lead screw (7) that is threadedly connected to the small threaded sleeve (501) is rotatably installed on the coarse adjustment frame (2).

4. The optical path adjustment structure for an infrared wide-swath detector according to claim 3, characterized in that, The pitch of the first lead screw (4) is greater than the pitch of the second lead screw (7).

5. The optical path adjustment structure for an infrared wide-swath detector according to claim 3, characterized in that, The control component includes a rotating rod (8) rotatably mounted on the housing (1); the rotating rod (8) is fixedly connected to the knob (10); two sets of symmetrically arranged fixed turntables (801) are fixedly mounted on the rotating rod (8); a first turntable (3) fixedly connected to the first lead screw column (4) is rotatably mounted on the partition plate (101); a second turntable (9) is rotatably mounted on the housing (1); multiple sets of tooth blocks (15) are fixedly mounted on multiple sets of fixed turntables (801), the first turntable (3) and the second turntable (9); and multiple sets of fixed turntables (801) respectively cooperate with the first turntable (3) and the second turntable (9); a rotating sleeve (6) rotatably mounted on the partition plate (101) and slidingly engaged with the second lead screw column (7); a large gear (601) is fixedly mounted on the rotating sleeve (6); and a small gear (901) meshing with the large gear (601) is fixedly mounted on the second turntable (9).

6. The optical path adjustment structure for an infrared wide-swath detector according to claim 5, characterized in that, The control component also includes a connecting rod (11) rotatably mounted on the rotating rod (8); a telescopic column (12) is fixedly mounted on the other end of the connecting rod (11); a fixed sleeve (13) that is slidably connected to the telescopic column (12) is fixedly mounted on both the partition plate (101) and the housing (1); a spring (14) is provided inside the fixed sleeve (13); the two ends of the spring (14) respectively abut against the fixed sleeve (13) and the telescopic column (12).

7. The optical path adjustment structure for an infrared wide-swath detector according to claim 1, characterized in that, Multiple protrusions are fixedly installed on the outer surface of the knob (10).

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