Reflector switching limiting device and spectrograph

Abstract

The utility model relates to a reflector switching limiting device and a spectrograph. The reflector switching limiting device comprises a base, a reflection assembly, a limiting seat assembly and an elastic piece. The reflecting assembly comprises a reflecting mirror seat and a reflecting mirror, the reflecting mirror seat is rotatably arranged on the base, and the reflecting mirror is installed on the reflecting mirror seat; the limiting seat assembly comprises a first limiting seat and a second limiting seat, and the first limiting seat and the second limiting seat are arranged in the first direction and the second direction of the reflecting mirror seat respectively and used for abutting against the reflecting mirror seat so as to limit the rotating range of the reflecting mirror seat; the elastic piece elastically acts on the reflector seat; when the reflector base rotates in the first direction to abut against the first limiting base, the elastic piece provides elastic force to prevent the reflector base from rotating in the second direction, so that the reflector base keeps abutting against the first limiting base. When the reflector base rotates in the second direction to abut against the second limiting base, the elastic piece provides elastic force to prevent the reflector base from rotating in the first direction, so that the reflector base keeps abutting against the second limiting base.

Description

Technical Field

[0001] The utility model relates to the technical field of optics, in particular to a reflector switching limit device and a spectrometer. Background Art

[0002] As one of the core tools of modern analytical science, the spectrometer operates based on optical phenomena such as dispersion, characteristic absorption, and scattering produced when light interacts with matter. These phenomena can reveal a substance's unique spectral fingerprint, enabling precise analysis of its composition, structure, and even physical and chemical properties. Current spectrometer designs on the market often feature a single light input port, which is particularly limiting when analyzing light sources of two different wavelengths. Operators must replace different fiber optic plugs at the light input port to ensure accurate fiber docking. This often involves additional steps such as optical path adjustment and instrument calibration, significantly increasing operational complexity and time costs, and reducing the efficiency of spectral detection. Utility Model Content

[0003] The purpose of the utility model is to provide a reflector switching limit device and a spectrometer, which solve the technical problem of how to simplify the spectrum detection operation and improve the spectrum detection efficiency when performing spectrum detection on light of two wavelengths.

[0004] In order to solve the above technical problems, the present utility model adopts the following technical solutions.

[0005] The utility model provides a reflector switching limit device, which comprises: a base; a reflective assembly, comprising a reflector seat and a reflector, wherein the reflector seat is rotatably arranged on the base in a first direction and a second direction opposite to each other, and the reflector is mounted on the reflector seat; a limit seat assembly, comprising a first limit seat and a second limit seat, wherein the first limit seat and the second limit seat are respectively arranged in the first direction and the second direction of the reflector seat, and are used to counteract the reflector seat to limit the rotation range of the reflector seat; an elastic member, one end of the elastic member is connected to the base, and the other end of the elastic member is connected to the The reflector seat is connected, and the connection center of the other end of the elastic member and the reflector seat does not coincide with the rotation center of the reflector seat and the base; when the reflector seat rotates along the first direction until it abuts against the first limit seat, the elastic member provides an elastic force to prevent the reflector seat from rotating along the second direction, so that the reflector seat remains against the first limit seat; when the reflector seat rotates along the second direction until it abuts against the second limit seat, the elastic member provides an elastic force to prevent the reflector seat from rotating along the first direction, so that the reflector seat remains against the second limit seat.

[0006] In some embodiments of the present application, a movable adjusting member is provided on the second limit seat or the reflector seat, and the second limit seat and the reflector seat are offset against each other through the adjusting member, and the adjusting member can increase or decrease the distance between the second limit seat and the reflector seat when it moves.

[0007] In some embodiments of the present application, a screw hole with an internal thread is provided on the second limit seat or the reflector seat, the adjusting member has an external thread and is screwed into the screw hole, and the second limit seat and the reflector seat are abutted against each other through the end of the adjusting member exposed outside the screw hole.

[0008] In some embodiments of the present application, the connection center between the other end of the elastic member and the reflector seat is located between the rotation center of the reflector seat and the reflector.

[0009] In some embodiments of the present application, a first magnetic component is further provided on the reflector seat, and a second magnetic component is further provided on the base, and when the reflector seat is against the second limit seat or the reflector seat is against the first limit seat, the first magnetic component and the second magnetic component are magnetically attracted to each other.

[0010] In some embodiments of the present application, the base is provided with a limit member that can move between a first position and a second position. The limit member blocks the rotation of the reflector seat when it is in the first position, and gives way to the rotation of the reflector seat when it is in the second position. When the reflector seat rotates along the first direction until it is against the first limit seat, the limit member is used to block the reflector seat from rotating along the second direction, and the reflector seat is clamped between the first limit seat and the limit member.

[0011] In some embodiments of the present application, a positioning block is provided at the bottom of the reflector seat, and the reflector switching limit device also includes a position sensor, which is used to detect the position of the positioning block. The reflector seat rotates to drive the positioning block closer to or away from the position sensor, and when the reflector seat is against the first limit seat, the positioning block is opposite to the position sensor.

[0012] In some embodiments of the present application, the reflector switching limit device also includes a driving member, the reflector seat includes a rotating seat and a mounting seat, the rotating seat is transmission-connected to the driving member, and the driving member is provided on the base so that the reflector seat can be rotatably provided on the base; the mounting seat is connected to the rotating seat, and the reflector is mounted on the mounting seat.

[0013] The utility model provides a spectrometer, which includes: a base and the reflector switching limit device described in any one of the above embodiments, wherein the base is provided with a chamber, a first light inlet and a second light inlet, the first light inlet is used to allow a first light to enter the chamber, and the second light inlet is used to allow a second light to enter the chamber, when the reflector seat is rotated to abut against the first limit seat, the reflector seat avoids the first light, and the first light propagates along a preset path, when the reflector seat is rotated to abut against the second limit seat, the reflector is opposite to the second light inlet, and the second light propagates along the preset path under the reflection of the reflector.

[0014] It can be seen from the above technical solutions that the embodiments of the present utility model have at least the following advantages and positive effects:

[0015] In the reflector switching limit device of the embodiment of the present invention, the reflector is mounted on the reflector seat and is used to change the incident path of light. The first limit seat defines the limit position of the reflector seat that can rotate in the first direction, and the second limit seat defines the limit position of the reflector assembly that can rotate in the second direction, so that the reflector seat cannot continue to rotate in the original rotation direction. The elastic force provided by the elastic member prevents the reflector seat from rotating in the opposite direction when in the limit position. Through the cooperation between the limit seat and the elastic member, the reflector seat can be limited to the limit position, thereby achieving stable switching of the reflector between two different positions. By fixing the reflector switch in two different positions, two paths of light incident from different positions can continue to propagate along the same path after passing through the reflector switching limit device for spectral detection, without the need to manually plug and unplug the optical fiber plug at the same position to replace the light source of different wavelengths. The operation is more convenient, saves time and cost, and improves the efficiency of spectral detection. On the other hand, the use of the reflector switching limit device can avoid the phenomenon that frequent replacement of light sources causes wear of corresponding components and reduces position accuracy, thereby improving the accuracy of spectral detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The various objects, features, and advantages of the present invention will become more apparent upon consideration of the following detailed description of preferred embodiments of the present invention in conjunction with the accompanying drawings. The accompanying drawings are merely illustrative illustrations of the present invention and are not necessarily drawn to scale. In the accompanying drawings, like reference numerals denote identical or similar components.

[0017] Figure 1 3 is a schematic structural diagram of a reflector switching limit device according to an exemplary embodiment.

[0018] Figure 2 yes Figure 1 Schematic diagram of the structure in another state.

[0019] Figure 3 yes Figure 1 Top view of .

[0020] Figure 4 yes Figure 2 Top view of .

[0021] Figure 5 yes Figure 2 Schematic diagram of the structure from another perspective.

[0022] Figure 6 This is a schematic diagram of the light path of the first light in the spectrometer.

[0023] Figure 7 This is a schematic diagram of the light path of the second light in the spectrometer.

[0024] Figure 8 Is a schematic structural diagram of the mirror switching limit device according to another exemplary embodiment.

[0025] The following are the descriptions of the reference numerals:

[0026] 1. Base; 11. Limiting member; 111. Fixed seat; 112. Movable column; 113. Second magnetic member;

[0027] 2. Reflection assembly; 21. Reflector seat; 211. Rotating seat; 2111. First magnetic member; 2112. Fourth magnetic member; 2113. Positioning block; 212. Mounting seat; 22. Reflector;

[0028] 3. Limit seat assembly; 31. First limit seat; 311. Third magnetic member; 32. Second limit seat;

[0029] 4. Elastic parts;

[0030] 5. Adjustment parts;

[0031] 6. Driving parts;

[0032] 7. Base; 71. First light inlet; 72. Second light inlet; 73. Chamber;

[0033] 8. Position sensor. DETAILED DESCRIPTION

[0034] Although the present invention can be easily embodied as embodiments of different forms, only some of the specific embodiments are shown in the drawings and will be described in detail in this specification. It should be understood that this description should be regarded as an exemplary illustration of the principles of the present invention and is not intended to limit the present invention to that described herein.

[0035] Thus, a feature indicated in this specification is intended to illustrate one of the features of one embodiment of the present invention, rather than implying that every embodiment of the present invention must have the described feature. Furthermore, it should be noted that this specification describes many features. Although certain features can be combined together to illustrate possible system designs, these features can also be used in other, not explicitly described, combinations. Thus, unless otherwise noted, the described combinations are not intended to be limiting.

[0036] In the embodiments shown in the accompanying drawings, directional indications (such as up, down, left, right, front, and back) used to explain the structure and movement of various components of the present invention are not absolute but relative. These descriptions are applicable when these components are in the positions shown in the accompanying drawings. If the descriptions of the positions of these components are changed, these directional indications will also change accordingly.

[0037] See also Figures 1 to 8 The reflector switching limit device provided by one embodiment of the present invention mainly includes a base 1, a reflective assembly 2, a limit seat assembly 3 and an elastic member 4. The reflective assembly 2 includes a reflector seat 21 and a reflector 22. The reflector seat 21 is rotatably arranged on the base 1 in a first direction and a second direction opposite to each other, and the reflector 22 is installed on the reflector seat 21; the limit seat assembly 3 includes a first limit seat 31 and a second limit seat 32. The first limit seat 31 and the second limit seat 32 are respectively arranged in the first direction and the second direction of the reflector seat 21, and are used to counteract the reflector seat 21 to limit the rotation range of the reflector seat 21; one end of the elastic member 4 is connected to the base 1, and the other end of the elastic member 4 is connected to the reflector seat 21 , and the connection center of the other end of the elastic member 4 and the reflector seat 21 does not coincide with the rotation center of the reflector seat 21 and the base 1; when the reflector seat 21 rotates along the first direction until it abuts against the first limit seat 31, the elastic member 4 provides an elastic force to prevent the reflector seat 21 from rotating along the second direction, so that the reflector seat 21 remains against the first limit seat 31; when the reflector seat 21 rotates along the second direction until it abuts against the second limit seat 32, the elastic member 4 provides an elastic force to prevent the reflector seat 21 from rotating along the first direction, so that the reflector seat 21 remains against the second limit seat 32.

[0038] In the reflector switching and limiting device of the embodiment of the present invention, the reflector 22 is mounted on the reflector seat 21 and is used to change the incident path of the light. The first limiting seat 31 defines the limit position of the reflector seat 21 that can rotate in the first direction, and the second limiting seat 32 defines the limit position of the reflector 22 group that can rotate in the second direction, so that the reflector seat 21 cannot continue to rotate along the original rotation direction. The elastic force provided by the elastic member 4 prevents the reflector seat 21 from rotating in the opposite direction when in the limit position. Through the cooperation between the limiting seat and the elastic member 4, the reflector seat 21 can be limited to the limit position, thereby achieving stable switching of the reflector 22 between two different positions. By switching and fixing the reflector 22 in two different positions, two paths of light incident from different positions can continue to propagate along the same path after passing through the reflector switching and limiting device for spectral detection, without the need to manually plug and unplug the optical fiber plug at the same position to replace the light source of different wavelengths. The operation is more convenient, saves time and cost, and improves the efficiency of spectral detection. On the other hand, the use of the reflector switching limit device can avoid the phenomenon that frequent replacement of light sources causes wear of corresponding components and reduces position accuracy, thereby improving the accuracy of spectral detection.

[0039] It can be imagined that the connection method of the elastic member 4 provides a structural basis for the elastic member 4 to act stably on the reflector seat 21. Since the connection center between the other end of the elastic member 4 and the reflector seat 21 does not coincide with the rotation center of the reflector seat 21, the position of the elastic member 4 changes accordingly during the rotation of the reflector seat 21, and can automatically generate elastic forces in different directions and provide fixing force when the reflector seat 21 rotates to the extreme position. The automatic adaptation and adjustment mechanism reduces the maintenance cost of the equipment and reduces the difficulty of operation.

[0040] See also Figure 1 and Figure 8 A movable adjustment member 5 is provided on the second position-limiting seat 32 or the reflector seat 21, and the second position-limiting seat 32 and the reflector seat 21 are offset by the adjustment member 5. When the adjustment member 5 is moved, the distance between the second position-limiting seat 32 and the reflector seat 21 can be increased or decreased. Errors may occur during mechanical manufacturing and assembly. The movement of the adjustment member 5 can correctly limit the position of the reflector seat 21, keeping it at an accurate angle, further improving the accuracy of spectral detection.

[0041] In a further embodiment, a screw hole with an internal thread is formed in the second limit seat 32 or the reflector seat 21, and the adjusting member 5 has an external thread and is screwed into the screw hole. The second limit seat 32 and the reflector seat 21 are abutted against each other through the end of the adjusting member 5 exposed outside the screw hole. Due to the threaded engagement between the adjusting member 5 and the screw hole, when the adjusting member 5 is screwed in or out, the end of the adjusting member 5 exposed outside the screw hole can increase or decrease the distance between the second limit seat 32 and the reflector seat 21, thereby simplifying adjustment and reducing maintenance difficulty.

[0042] In this embodiment, the connection center between the other end of the elastic member 4 and the reflector base 21 is located between the rotation center of the reflector base 21 and the reflector 22. The connection center of the elastic member 4 is located between the rotation center and the reflector 22, so that the elastic member 4 generates an optimized torque distribution when the reflector base 21 rotates, thereby improving the balance and stability of the reflector base 21 during the rotation process.

[0043] In a further embodiment, the elastic member 4 is a tension spring and is always in a stretched state. The tension spring is always in a stretched state, which means that at any time, the tension spring has a certain preload force, ensuring the stability of the reflector seat 21 in the initial position and during the rotation process.

[0044] See also Figures 1 to 5 In a specific embodiment, a first magnetic member 2111 is further provided on the reflector seat 21, and a second magnetic member 113 is further provided on the base 1, and when the reflector seat 21 and the second limit seat 32 are against each other, the first magnetic member 2111 and the second magnetic member 113 are magnetically attracted to each other. The magnetic attraction between the first magnetic member 2111 and the second magnetic member 113 plays an auxiliary fixing role, increases the fixing force when the second limit seat 32 and the reflector seat 21 are against each other, can effectively prevent the reflector seat 21 from moving slightly, and enhances the stability and anti-interference ability of the reflector switching limit device. Furthermore, in scenarios such as transportation and handling, the fixing force of the magnetic attraction can effectively fix the reflector seat 21, thereby preventing the reflector seat 21 from colliding with the first limit seat 31 or the second limit seat 32, and ensuring the stability and integrity of the overall structure.

[0045] In a specific embodiment, the first magnetic component 2111 is arranged on one side of the reflector seat 21, and the second magnetic component 113 is arranged on the side of the base 1 facing the reflector seat 21. The first magnetic component 2111 is a screw, and the second magnetic component 113 is an electromagnet. The first magnetic component 2111 can be rotated in and out relative to the reflector seat 21 to adapt to the fine-tuning action of the adjustment component 5, thereby ensuring the magnetic attraction effect of the first magnetic component 2111 and the second magnetic component 113.

[0046] In a further embodiment, a third magnetic part 311 is provided on the first limit seat 31, and a fourth magnetic part 2112 is provided on the reflector seat 21. The first limit seat 31 and the reflector seat 21 are offset by the magnetic attraction of the third magnetic part 311 and the fourth magnetic part 2112, and are further conducive to maintaining the offset state of the two.

[0047] In actual usage scenarios, the second magnetic part 113 and the third magnetic part 311 are both electromagnets. When the second magnetic part 113 and the third magnetic part 311 are energized, they can be demagnetized, thereby releasing the magnetic attraction between the second magnetic part 113 and the first magnetic part 2111 and the third magnetic part 311 and the fourth magnetic part 2112, so that the reflector seat 21 can rotate smoothly to switch positions.

[0048] See also Figure 8 In another specific embodiment, the base 1 is provided with a limit member 11 movable between a first position and a second position. When in the first position, the limit member 11 blocks the rotation of the reflector seat 21. When in the second position, the limit member 11 provides a clearance for the rotation of the reflector seat 21. When the reflector seat 21 rotates in the first direction until it abuts against the first limit seat 31, the limit member 11 is used to block the rotation of the reflector seat 21 in the second direction and clamp the reflector seat 21 between the first limit seat 31 and the limit member 11. The limit member 11 can provide additional fixing force, increase the stability of the abutting position of the first limit seat 31 and the reflector seat 21, effectively reduce the phenomenon of slight movement of the reflector seat 21, and thus enhance the anti-interference ability and stability of the reflector switching limit device.

[0049] In this embodiment, the limiting member 11 includes a fixed seat 111 and a movable column 112. The fixed seat 111 is connected to the base 1. A through hole is provided on the fixed seat 111. The movable column 112 can be moved up and down along the through hole and penetrated through the through hole. When the movable member moves up, it can block the rotation of the reflector seat 21. When the movable member moves down, it can make way for the rotation of the reflector seat 21.

[0050] See also Figures 1 to 5 A positioning block 2113 is provided at the bottom of the reflector seat 21. The reflector switching limit device also includes a position sensor 8, which is used to detect the position of the positioning block 2113. The reflector seat 21 rotates to drive the positioning block 2113 toward or away from the position sensor 8. When the reflector seat 21 abuts against the first limit seat 31, the positioning block 2113 is opposite the position sensor 8. The position sensor 8 can detect the position of the reflector seat 21 and provide accurate positioning information, thereby improving the accuracy and stability of the switching of the reflector 22. In this embodiment, the position sensor 8 is a photoelectric switch.

[0051] See also Figure 2 and Figure 8 The reflector switching limit device also includes a driving member 6. The reflector seat 21 includes a rotating seat 211 and a mounting seat 212. The rotating seat 211 is transmission-connected to the driving member 6, and the driving member 6 is provided on the base 1 so that the reflector seat 21 can be rotatably provided on the base 1. The mounting seat 212 is connected to the rotating seat 211, and the reflector 22 is mounted on the mounting seat 212. The use of the driving member 6 can more accurately and quickly control the rotation of the reflector seat 21, and can be applied to occasions requiring high frequency or precise adjustment. The mounting seat 212 can easily replace the reflector 22, and the rotating seat 211 is responsible for transmission. This modular structure simplifies the maintenance and installation of the device and increases the flexibility of the overall structure.

[0052] See also Figure 6 and Figure 7 The spectrometer provided by one embodiment of the present invention mainly includes a base 7 and a reflector switching limit device of any one of the above embodiments. The base 7 is provided with a chamber 73, a first light inlet 71 and a second light inlet 72. The first light inlet 71 is used to allow the first light to enter the chamber 73, and the second light inlet 72 is used to allow the second light to enter the chamber 73. When the reflector seat 21 rotates to abut against the first limit seat 31, the reflector seat 21 avoids the first light, and the first light propagates along a preset path. When the reflector seat 21 rotates to abut against the second limit seat 32, the reflector 22 is opposite to the second light inlet 72, and the second light propagates along the preset path under the reflection of the reflector 22. By connecting light of different wavelengths at different light inlets and precisely controlling the reflector switching limit device, it is possible to ensure that incident light of different wavelengths propagates along the same path, thereby improving the applicability and flexibility of the spectrometer, making the operation quick and convenient, and avoiding the influence of frequent replacement of optical fiber connectors on detection accuracy.

[0053] While the present invention has been described with reference to several exemplary embodiments, it should be understood that the terms used are illustrative and exemplary rather than restrictive. Since the present invention can be embodied in a variety of forms without departing from the spirit or essence of the invention, it should be understood that the above-described embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope of the appended claims. Therefore, all changes and modifications that fall within the scope of the claims or their equivalents are intended to be covered by the appended claims.

Claims

1. A reflector switching limit device, characterized in that: include: base; A reflective assembly comprising a reflector seat and a reflector, wherein the reflector seat is rotatably disposed on the base in a first direction and a second direction opposite to each other, and the reflector is mounted on the reflector seat; A limit seat assembly includes a first limit seat and a second limit seat, wherein the first limit seat and the second limit seat are respectively arranged in a first direction and a second direction of the reflector seat, and are used to offset the reflector seat to limit the rotation range of the reflector seat; an elastic member, one end of the elastic member being connected to the base, the other end of the elastic member being connected to the reflector seat, and a connection center between the other end of the elastic member and the reflector seat not coinciding with a rotation center between the reflector seat and the base; When the reflector seat rotates along the first direction until it abuts against the first limiting seat, the elastic member provides an elastic force to prevent the reflector seat from rotating along the second direction, so that the reflector seat remains abutted against the first limiting seat; When the reflector seat rotates along the second direction until it abuts against the second limiting seat, the elastic member provides elastic force to prevent the reflector seat from rotating along the first direction, so that the reflector seat remains abutted against the second limiting seat.

2. The reflector switching limit device according to claim 1, characterized in that: A movable adjusting member is provided on the second limit seat or the reflector seat, and the second limit seat and the reflector seat are offset against each other through the adjusting member. When the adjusting member moves, the distance between the second limit seat and the reflector seat can be increased or decreased.

3. The reflector switching limit device according to claim 2, characterized in that: A screw hole with internal threads is provided on the second limit seat or the reflector seat, the adjusting member has external threads and is screwed into the screw hole, and the second limit seat and the reflector seat are butted against each other through one end of the adjusting member exposed outside the screw hole.

4. The reflector switching limit device according to claim 1, characterized in that: The connection center between the other end of the elastic member and the reflector seat is arranged between the rotation center of the reflector seat and the reflector.

5. The reflector switching and limiting device according to claim 1, characterized in that: The reflector seat is further provided with a first magnetic member, and the base is further provided with a second magnetic member. When the reflector seat is against the second limit seat or the reflector seat is against the first limit seat, the first magnetic member and the second magnetic member are magnetically attracted to each other.

6. The reflector switching limit device according to claim 1, characterized in that: The base is provided with a limit member that can move between a first position and a second position. The limit member blocks the rotation of the reflector seat when it is in the first position, and gives way to the rotation of the reflector seat when it is in the second position. When the reflector seat rotates along the first direction until it abuts against the first limit seat, the limit member is used to block the reflector seat from rotating along the second direction, and the reflector seat is clamped between the first limit seat and the limit member.

7. The reflector switching and limiting device according to claim 1, characterized in that: A positioning block is provided at the bottom of the reflector seat, and the reflector switching limit device also includes a position sensor, which is used to detect the position of the positioning block. The reflector seat rotates to drive the positioning block to move closer to or away from the position sensor, and when the reflector seat and the first limit seat are against each other, the positioning block is opposite to the position sensor.

8. The reflector switching and limiting device according to claim 1, characterized in that: The reflector switching and limiting device further includes a driving member, the reflector seat includes a rotating seat and a mounting seat, the rotating seat is transmission-connected to the driving member, and the driving member is provided on the base so that the reflector seat can be rotatably provided on the base; The mounting seat is connected to the rotating seat, and the reflector is mounted on the mounting seat.

9. A spectrometer, characterized in that: It includes a base and the reflector switching limit device according to any one of claims 1 to 8 above, wherein the base is provided with a chamber, a first light inlet and a second light inlet, the first light inlet is used to allow the first light to enter the chamber, and the second light inlet is used to allow the second light to enter the chamber, when the reflector seat is rotated to abut against the first limit seat, the reflector seat avoids the first light, and the first light propagates along a preset path, when the reflector seat is rotated to abut against the second limit seat, the reflector is opposite to the second light inlet, and the second light propagates along the preset path under the reflection of the reflector.

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