Light source calibration device

Abstract

The utility model discloses a light source calibration device which comprises a cylinder body, a top cover and an annular installation disc, and the annular installation disc is detachably installed in the cylinder body. The reference plates are respectively mounted on the disc surface of the annular mounting disc through mounting assemblies, and a pin hole is formed in one end of each reference plate; the annular gear disc and the annular mounting disc are concentrically arranged, and a plurality of guide holes are formed in the annular gear disc; a motor is in transmission connection with the annular gear disc through a driving gear so as to drive the guide pin shafts to reciprocate along the guide holes, so that the reference plates are switched between an unfolded state and a folded state, the opening parts are closed when the reference plates are in the unfolded state, and the opening parts are closed when the reference plates are in the folded state; and each reference plate is embedded into the accommodating space when being in a retracted state. Therefore, the light source calibration device can realize light source calibration under the condition of ensuring the normal work of the detection equipment.

Description

TECHNICAL FIELD

[0001] The utility model relates to light source calibration technical field, concretely relates to a light source calibration device. BACKGROUND

[0002] The near infrared detection equipment belongs to integrated equipment, wherein in addition to the light source, other components are also contained, the light source is located in the equipment, is mainly used for providing light for the optical fiber and the surrounding environment, in addition to this, other components such as reflector, lens can be contained.In order to reduce the equipment deadweight and volume, the reference plate of the existing calibration light source is also very small, only applicable to the detection device of small spot light source, for the calibration of large spot light source, if the area of the reference plate is increased, the light of the near infrared detection equipment will be shielded, and the normal work of the near infrared detection equipment is affected.

[0003] Therefore, a light source calibration device is provided to realize light source calibration under the condition of ensuring the normal work of the detection equipment, which becomes a problem to be solved by the person skilled in the art. UTILITY MODEL CONTENT

[0004] Therefore, the utility model embodiment provides a light source calibration device to solve at least one technical problem in the prior art.

[0005] In order to realize the above-mentioned purpose, the utility model embodiment provides the following technical scheme:

[0006] The utility model provides a light source calibration device, which comprises:

[0007] The cylinder body is installed on the container objective lens of the equipment to be calibrated.

[0008] The top cover is installed on the top end of the cylinder body, and an opening part is formed in the top cover.

[0009] The annular mounting disc is detachably installed in the cylinder body.

[0010] The reference plates are installed on the disc surface of the annular mounting disc through the mounting assemblies.

[0011] The annular gear disc is concentrically arranged with the annular mounting disc, and a plurality of guide holes are formed in the annular gear disc.

[0012] The guide pins are equal in number to the guide holes and the pin holes, and each guide pin passes through the guide hole and the pin hole one by one.

[0013] A motor is drivingly connected with the ring gear disc through a driving gear to drive each guide pin shaft to reciprocate along the guide hole, so as to switch each reference plate between the unfolded state and the retracted state, each reference plate closes the opening part when in the unfolded state, and each reference plate is embedded in the accommodating space when in the retracted state.

[0014] In the non-calibration operation state, the reference plates are accommodated in the accommodating space of the top cover, at this time, the opening part of the top cover is in the open state, the device light source can normally emit and be collected by the optical fiber, and the normal work of the device is not affected; when calibration operation is needed, the motor is started, the output shaft of the motor transmits rotation to the ring gear disc through the driving gear, with the rotation of the ring gear disc, each guide pin moves synchronously along each guide hole on the ring gear disc, so that each reference plate moves away from the swing end of the guide pin, so that each swing plate gradually unfolds until the opening part is closed, at this time, the reference plate as one of the calibration components can participate in the calibration operation. In this way, the light source calibration device can realize light source calibration while ensuring the normal work of the detection device.

[0015] In some embodiments, the motor is installed on the inner side wall of the cylinder body, and a protective cover is arranged on the outer side of the top cover and covers the motor.

[0016] In some embodiments, the mounting assembly comprises:

[0017] A plurality of limiting grooves are inclined at a preset angle and are formed on the disc surface of the ring mounting disc.

[0018] A mounting block is arranged on the bottom surface of the reference plate, and each reference plate is one-to-one correspondingly mounted in the limiting groove through the mounting block.

[0019] In some embodiments, the reference plate is a triangular plate, the pin hole is formed near the wide side of the triangular plate, and when the reference plate is in the unfolded state, the first inclined side of one of the two adjacent reference plates is fitted with the second inclined side of the other reference plate.

[0020] In some embodiments, the reference plate, the guide pin shaft, the pin hole and the guide hole are twelve.

[0021] In some embodiments, a side wall of the top cover is provided with a relief hole, and the driving gear and the ring gear disc are engaged at the position of the relief hole.

[0022] In some embodiments, the guide hole is a strip hole with a preset arc. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the accompanying drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced. Obviously, the accompanying drawings in the following description are only exemplary, and for those skilled in the art, other drawings can be obtained from the provided drawings without creative labor.

[0024] The structures, proportions, sizes, etc. shown in the specification are only used to cooperate with the content disclosed in the specification, to be understood and read by those skilled in the art, and are not used to limit the implementation conditions of the present application, so they do not have technical significance. Any modification of structure, change of proportion relationship or adjustment of size, without affecting the effects and purposes that the present application can produce, should still fall within the scope of the technical content disclosed by the present application.

[0025] Figure 1 Structure schematic view of the light source calibration device provided by the present application in a non-calibration state;

[0026] Figure 2 Structure schematic view of the light source calibration device provided by the present application in a calibration state;

[0027] Figure 3 Partial structure schematic view No. 1 of the light source calibration device provided by the present application;

[0028] Figure 4 Partial structure schematic view No. 2 of the light source calibration device provided by the present application;

[0029] Figure 5 Partial structure schematic view No. 3 of the light source calibration device provided by the present application;

[0030] Figure 6 Structure schematic view of the top cover in the light source calibration device provided by the present application;

[0031] Figure 7 Structure schematic view of the annular gear disc in the light source calibration device provided by the present application;

[0032] Figure 8 Structure schematic view of the reference plate in the light source calibration device provided by the present application;

[0033] Figure 9 Structure schematic view of the annular mounting disc in the light source calibration device provided by the present application;

[0034] Figure 10 Structure of the protective cover in the light source calibration device provided by the present application.

[0035] BRIEF DESCRIPTION OF DRAWINGS

[0036] 1 - barrel;

[0037] 2 - top cover, 21 - opening, 22 - avoiding hole;

[0038] 3 - reference plate, 31 - pin hole, 32 - mounting block;

[0039] 4 - motor;

[0040] 5 - ring gear disc, 51 - guide hole;

[0041] 6 - guide pin shaft;

[0042] 7 - driving gear;

[0043] 8 - protective cover;

[0044] 9 - ring mounting disc, 91 - limiting groove. DETAILED DESCRIPTION

[0045] The embodiments of the present application will be described in detail by the specific embodiments, and the person skilled in the art can easily understand other advantages and effects of the present application from the disclosed content of the specification. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by the person skilled in the art without creative labor fall within the scope of protection of the present application.

[0046] The light source calibration device provided by the present application will be described below. Figures 1-10 The light source calibration device provided by the present application will be described below.

[0047] In one embodiment, the light source calibration device provided by the present application comprises a barrel 1, a top cover 2, a reference plate 3, a ring mounting disc 9, a ring gear disc 5, a guide pin shaft 6 and a motor 4. In this embodiment, the barrel 1 is mounted on the container objective lens of the device to be calibrated. In this embodiment, the barrel 1 can be provided with a plurality of connecting ears in the circumferential direction, and the barrel 1 is mounted on the container objective lens through the connecting ears. The connecting ears and the container objective lens can be detachably connected by screw connection or the like. The cross section of the barrel 1 can be a regular shape, a square shape or the like, which is adapted to the structure of the device to be calibrated.

[0048] The top cover 2 is installed at the top end of the barrel 1, and an opening part 21 is formed in the top cover 2. The top cover 2 and the barrel 1 can be fixed by snap connection or bolt connection. The opening shape and size of the opening part 21 are matched with the number and shape of the reference plates 3, so that each reference plate 3 can close the opening part 21 when it is in a flat unfolded state. In this embodiment, since the reference plates 3 in the retracted state need to be accommodated, the top cover 2 has a receiving space between the top surface of the barrel 1, that is, the top cover 2 is a shell structure with a certain height space.

[0049] The annular mounting disc 9 is detachably mounted in the barrel 1, for example, the annular mounting disc 9 can be fixedly connected with the inner wall of the barrel 1 by snap connection or bolt connection. In order to avoid interference with the meshing of the driving gear 7 and the annular gear disc 5, the side wall of the top cover 2 is provided with a relief hole 22, and the driving gear 7 and the annular gear disc 5 are meshed at the position of the relief hole 22. In theory, the driving gear 7 can also be arranged in the top cover 2, at this time, only a through hole for the output shaft of the motor 4 needs to be formed in the top cover 2.

[0050] The reference plates 3 are a plurality of, each of the reference plates 3 is installed on the disc surface of the annular mounting disc 9 through a mounting assembly, and one end of the reference plate 3 is provided with a pin hole 31. In some embodiments, the reference plates 3, the guide pin shafts 6, the pin holes 31 and the guide holes 51 are twelve, and it should be understood that the number of reference plates 3 can be different according to the shape and angle of the reference plates 3.

[0051] The annular gear disc 5 is concentrically arranged with the annular mounting disc 9, and a plurality of guide holes 51 are arranged on the annular gear disc 5. The guide holes 51 are strip-shaped holes with a preset radian, which can be any angle between 5-30°, which can avoid jamming when the reference plates 3 are unfolded.

[0052] The guide pin shafts 6 are a plurality of, the number of the guide pin shafts 6, the pin holes 31 and the guide holes 51 are equal (12 in this embodiment), and each of the guide pin shafts 6 passes through the guide holes 51 and the pin holes 31 one by one in correspondence.

[0053] The motor 4 is drivingly connected with the annular gear disc 5 through the driving gear 7, to drive the guide pin shafts 6 to reciprocate along the guide holes 51, so as to switch the reference plates 3 between the unfolded state and the retracted state. Each of the reference plates 3 closes the opening part 21 when it is in the unfolded state, and each of the reference plates 3 is embedded in the receiving space when it is in the retracted state.

[0054] The motor 4 is installed on the inner side wall of the barrel 1, and the outer side of the top cover 2 is provided with a protective cover 8 which covers the motor 4, so that the reliability and safety of the motor 4 are improved.

[0055] The mounting assembly between the annular mounting disc 9 and the reference plate 3 comprises limiting grooves 91 and mounting blocks 32; the limiting grooves 91 are a plurality of (equal to the number of the reference plates 3, for example, 12) and are inclinedly formed on the disc surface of the annular mounting disc 9 at a preset angle; and the mounting blocks 32 are arranged on the bottom surface of the reference plate 3, and each reference plate 3 is correspondingly mounted in the limiting groove 91 through the mounting block 32.

[0056] The reference plate 3 is a triangular plate, and the pin hole 31 is formed near the wide side A of the triangular plate; when the reference plate 3 is in an unfolded state, the first inclined side B of one of the two adjacent reference plates 3 is in abutment with the second inclined side C of the other reference plate 3.

[0057] In the non-calibration state, the reference plate 3 is accommodated in the accommodating space of the top cover 2, and at this time, the opening part 21 of the top cover 2 is in an open state, so that the device light source can normally emit and be collected by the optical fiber, and the normal work of the device is not affected; when calibration is needed, the motor 4 is started, the output shaft of the motor 4 transmits the rotation to the annular gear disc 5 through the driving gear 7, and with the rotation of the annular gear disc 5, the guide pins move synchronously along the guide holes 51 on the annular gear disc 5, so that each reference plate 3 moves away from the swing end of the guide pin, and each swing plate is gradually unfolded until the opening part 21 is closed, at this time, the reference plate 3 as one of the calibration components can participate in the calibration work. In this way, the light source calibration device can realize light source calibration while ensuring the normal work of the detection device.

[0058] In order to facilitate understanding, the following will take a use scene as an example to briefly describe the assembly and use process of the light source calibration device provided by the utility model.

[0059] Taking the far infrared device calibration of a large spot light source as an example, the light source calibration device comprises a shell, an annular mounting disc 9, a reference plate 3, an annular gear disc 5, a guide pin and a motor 4; the shell is fixed on the container sight glass through four mounting holes, the mounting disc is fixed on the four mounting holes of the shell through four buckles, 12 reference plates 3 are sequentially mounted in the limiting grooves 91 on the annular mounting disc 9, the annular gear disc 5 is mounted above the reference plates 3, the guide grooves of the annular gear disc 5 are aligned with the positioning holes of the reference plates 3, 12 guide pins are sequentially mounted in the positioning holes of the reference plates 3 through the guide grooves of the annular gear disc 5, the motor 4 is fixed on the outer wall of the shell after the driving gear 7 is mounted on the motor 4, the driving gear 7 cooperates with the annular gear disc 5, and finally the motor 4 protection shell and the top cover 2 are mounted.

[0060] In the process of detection, the light source is calibrated according to the use requirement, the component required for calibration is generally the reference plate 3, after the calibration device is installed, the whole equipment is installed on the container sight glass through four long bolts, when the light source passes normally and the optical fiber collects normally, the motor 4 works, the driving gear 7 drives the ring gear disc 5 to rotate, the reference plate 3 moves on the limiting groove 91 of the guiding groove installation disc through the guiding nail, the reference plate 3 diffuses outward, the polygonal hole in the middle of the equipment makes the light source pass through. When the light source needs to be calibrated in the detection process, the motor 4 starts to work after receiving the signal, the ring gear disc 5 is also driven to rotate, the reference plate 3 is contracted to the center, the center forms a closed surface, the light source irradiates on the surface, the optical fiber collects and calibrates.

[0061] The above detailed description is used to further explain the purpose, technical scheme and beneficial effects of the utility model, and it should be understood that the above is only the specific implementation of the utility model, and is not used to limit the protection scope of the utility model, any modification, equivalent replacement, improvement, etc. made on the basis of the technical scheme of the utility model should be included in the protection scope of the utility model.

Claims

1. A light source calibration device, characterized in that: include: a barrel, the barrel being mounted on a container objective lens of a device to be calibrated; A top cover is mounted on the top of the cylinder, and an opening is formed on the top cover, with an accommodation space being defined between the top cover and the upper surface of the cylinder; an annular mounting plate, the annular mounting plate being detachably mounted in the barrel; Reference plates, wherein there are a plurality of reference plates, each of which is mounted on the disk surface of the annular mounting disk through a mounting assembly, and a pin hole is provided at one end of the reference plate; An annular gear plate, the annular gear plate is concentrically arranged with the annular mounting plate, and the annular gear plate is provided with a plurality of guide holes; There are a plurality of guide pins, the number of the guide pins, the number of the pin holes, and the number of the guide holes are equal, and each guide pin passes through the guide hole and the pin hole in sequence in a one-to-one correspondence; A motor is connected to the annular gear plate through a driving gear to drive each guide pin shaft to reciprocate along the guide hole, so that each reference plate can switch between an extended state and a retracted state. When each reference plate is in the extended state, the opening is closed, and when each reference plate is in the retracted state, it is embedded in the accommodating space.

2. The light source calibration device according to claim 1, characterized in that: The motor is mounted on the inner side wall of the cylinder, and a protective cover is provided on the outer side of the top cover, wherein the protective cover is arranged outside the motor.

3. The light source calibration device according to claim 1, wherein: The installation components include: There are a plurality of limiting grooves, each of which is inclined at a preset angle on the surface of the annular mounting plate; The mounting block is arranged on the bottom surface of the reference plate, and each reference plate is mounted in the limiting groove in a one-to-one correspondence through its own mounting block.

4. The light source calibration device according to any one of claims 1 to 3, characterized in that: The reference plate is a triangular plate, and the pin hole is opened near the wide side of the triangular plate. When the reference plate is in the unfolded state, the first oblique side of one of the two adjacent reference plates fits with the second oblique side of the other reference plate.

5. The light source calibration device according to claim 4, characterized in that: There are twelve reference plates, twelve guide pins, twelve pin holes and twelve guide holes.

6. The light source calibration device according to any one of claims 1 to 3, characterized in that: A side wall of the top cover is provided with an avoidance hole, and the driving gear is meshed with the annular gear plate at the position of the avoidance hole.

7. The light source calibration device according to any one of claims 1 to 3, characterized in that: The guide hole is a strip-shaped hole with a preset curvature.

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