Slit multi-dimensional adjustment optical fiber quick change device

Abstract

The present invention relates to the technical field of optical analysis instruments, and proposes a slit multi-dimensional adjustment optical fiber quick-change device, which comprises: an outer frame; an inner slider, located in the outer frame; a first adjustment component, arranged between the outer frame and the inner slider, to drive the inner slider to reciprocate in the outer frame along a first direction; a second adjustment component, arranged between the outer frame and the inner slider, to drive the inner slider to reciprocate in the outer frame along a second direction; a slit component, arranged on the inner slider, the slit component comprises two slit blades relatively and slidably arranged on the inner slider, a linkage is arranged between the two slit blades, under the action of the linkage, the two slit blades can slide towards or away from each other to change the width of the slit; a slit adjustment component, arranged on the inner slider, the slit adjustment component has an adjustment rod that can push one of the slit blades to slide. The present invention can solve the problem that the existing adjustable slit device is difficult to use a small spectrometer.

Description

Technical Field

[0001] The invention relates to the technical field of optical analysis instruments, and in particular to a quick-change optical fiber device for multi-dimensionally adjusting an entrance slit of a spectrometer. Background Art

[0002] With the development of optoelectronic technology, optical fibers for long-distance light transmission are widely used. Optical fiber light-guiding optoelectronic systems are widely used in spectral scientific research in optical signal measurement, material analysis, environmental protection, medical treatment, chemical industry, metallurgy, and other production, scientific research, and teaching fields. It has a series of advantages such as low cost, high optical signal fidelity, and little interference from electrical signals. For spectrometers, optical fibers can be used as signal coupling devices to couple incident light or measured light into the spectrometer for spectral testing and analysis. In order to maximize the coupling of the energy of the emitted light into the receiving optical path, the test results are directly related to the alignment of the optical fiber and the slit. Therefore, there is an urgent need for a device that can quickly adjust the position of the optical fiber to achieve the alignment of the optical fiber and the slit.

[0003] The slit is the gateway for light to enter the spectrometer, and its size will directly affect the light flux of the fiber optic spectrometer. The larger the slit, the greater the light flux, and the smaller the slit, the smaller the light flux. Adjustable width slits are attracting more and more attention. However, due to the limitation of structural accuracy, adjustable width slits are generally large in size, and the manufacturing and installation processes are more demanding and cumbersome. Under the conditions of rapid development in the optoelectronic field, miniaturized fiber optic spectrometers are becoming more and more mainstream in the market. The current adjustable slits are difficult to adapt to the needs of small spectrometers, so it is necessary to design a miniaturized and high-precision slit adjustment device. Summary of the invention

[0004] The purpose of the present invention is to provide a slit multi-dimensional adjustment optical fiber quick-change device to solve the problem that the existing adjustable slit device is difficult to use a small spectrometer.

[0005] The above technical objectives of the present invention are mainly achieved through the following technical solutions:

[0006] The present invention provides a slit multi-dimensional adjustment optical fiber quick-change device, which comprises:

[0007] Frame;

[0008] An inner slider, located inside the outer frame;

[0009] A first adjustment component is disposed between the outer frame and the inner slider to drive the inner slider to reciprocate in the outer frame along a first direction;

[0010] A second adjustment component is disposed between the outer frame and the inner slider to drive the inner slider to reciprocate in the outer frame along a second direction;

[0011] A slit assembly is arranged on the inner slider, the slit assembly comprises two slit blades which are relatively and slidably arranged on the inner slider, a linkage is arranged between the two slit blades, under the action of the linkage, the two slit blades can slide towards or away from each other to change the width of the slit;

[0012] The slit adjustment component is arranged on the inner sliding block, and the slit adjustment component has an adjustment rod which can push one of the slit blades to slide.

[0013] In a preferred embodiment of the present invention, the first direction is perpendicular to the second direction.

[0014] In a preferred embodiment of the present invention, the first adjustment component comprises:

[0015] A first adjusting thread pair, provided on the outer frame, wherein the end of the adjusting screw in the first adjusting thread pair abuts against a side wall of the inner sliding block;

[0016] A first elastic abutment member is provided on the outer frame, the first elastic abutment member abuts against a side wall of the inner slider, and the first adjusting thread pair and the first elastic abutment member are respectively located at opposite sides of the inner slider;

[0017] Wherein, the axis of the adjusting screw in the first adjusting thread pair and the elastic force direction of the first elastic abutment member are both parallel to the first direction.

[0018] In a preferred embodiment of the present invention, the first elastic abutment member includes a spring and an abutment seat, the spring is arranged in an opening of the inner side wall of the outer frame, the abutment seat is connected to the spring, and the abutment seat can abut against the inner slider under the action of the spring to provide a restoring force to the inner slider toward the first adjusting thread pair.

[0019] In a preferred embodiment of the present invention, a double-hook tension spring is connected between the outer frame and the inner slider on the side where the first adjusting thread pair is provided.

[0020] In a preferred embodiment of the present invention, the second adjustment component comprises:

[0021] A second adjusting thread pair is provided on the outer frame, wherein the end of the adjusting screw in the second adjusting thread pair abuts against a side wall of the inner sliding block;

[0022] A second elastic abutment member is provided on the outer frame, the second elastic abutment member abuts against a side wall of the inner slider, and the second adjusting thread pair and the second elastic abutment member are respectively located at opposite sides of the inner slider;

[0023] Wherein, the axis of the adjusting screw in the second adjusting thread pair and the elastic force direction of the second elastic abutment member are both parallel to the second direction.

[0024] In a preferred embodiment of the present invention, the second elastic abutment member includes a spring and an abutment seat, the spring is arranged in an opening of the inner side wall of the outer frame, the abutment seat is connected to the spring, and the abutment seat can abut against the inner slider under the action of the spring to provide a restoring force to the inner slider toward the second adjusting thread pair.

[0025] In a preferred embodiment of the present invention, a double-hook tension spring is connected between the outer frame and the inner slider on the side where the second adjusting thread pair is provided.

[0026] In a preferred embodiment of the present invention, the inner sliding block is provided with two parallel slideways, the two slideways are respectively slidably provided with a first slide bar and a second slide bar, the two slit blades are respectively provided on the first slide bar and the second slide bar, and the adjusting rod can push the first slide bar or the second slide bar to slide.

[0027] In a preferred embodiment of the present invention, one side of the first slide bar is abutted with a third elastic abutment, one side of the second slide bar is abutted with a fourth elastic abutment, the third elastic abutment and the fourth elastic abutment are both arranged on the inner slide bar, the third elastic abutment can provide the first slide bar with a thrust force toward the second slide bar, and the fourth elastic abutment can provide the second slide bar with a thrust force toward the first slide bar.

[0028] In a preferred embodiment of the present invention, the third elastic abutment member includes a spring and a top ball, the spring is arranged in the opening hole of the inner slider, and the top ball is located between the spring and the first slide bar; and / or the fourth elastic abutment member includes a spring and a top ball, the spring is arranged in the opening hole of the inner slider, and the top ball is located between the spring and the second slide bar.

[0029] In a preferred embodiment of the present invention, the linkage member includes a linkage rod, which is connected to the inner slider via a rotating shaft, and the linkage rod is located at the same end of the first slider and the second slider, and the two ends of the linkage rod are respectively abutted against the end of the first slider and the end of the second slider.

[0030] In a preferred embodiment of the present invention, the adjusting rod can push the first slide bar to slide, and the end of the second slide bar away from the linkage rod is abutted against a fifth elastic abutment member, and the fifth elastic abutment member is arranged on the inner slide bar.

[0031] In a preferred embodiment of the present invention, the fifth elastic abutment includes a spring and an abutment seat, the spring is arranged in the opening hole of the inner slider, the abutment seat is connected to the spring, and the abutment seat can abut against the end of the second slide bar under the action of the spring to provide a restoring force to the second slide bar toward the connecting rod.

[0032] In a preferred embodiment of the present invention, a guide block is further provided on the inner sliding block, a triangular groove is formed between one end of the guide block and one end of the first sliding bar, a steel ball is provided in the triangular groove, and the end of the adjusting rod abuts against the steel ball.

[0033] In a preferred embodiment of the present invention, a guide block adjusting member is provided at one end of the guide block away from the triangular groove, and the guide block adjusting member can push the guide block to move so as to change the position of the triangular groove.

[0034] In a preferred embodiment of the present invention, the slit multi-dimensional adjustable optical fiber quick-change device further comprises an optical fiber coupler, a circular hole is formed in the inner slider at a position corresponding to the slit, and the optical fiber coupler is arranged in the circular hole.

[0035] In a preferred embodiment of the present invention, the adjustment rod is a micrometer.

[0036] Compared with the prior art, the technical solution of the present invention has the following characteristics and advantages:

[0037] 1. In the slit multi-dimensional adjustment optical fiber quick-change device described in the present invention, the first adjustment component and the second adjustment component both use high-precision thread pairs to achieve the up-down and left-right micro-translation function of the inner slider, with high movement accuracy and simple and convenient operation.

[0038] 2. In the slit multi-dimensional adjustment optical fiber quick-change device described in the present invention, the first adjustment component and the second adjustment component both use a top wire spring component and a cylindrical pin double hook tension spring component for coordinated adjustment, so that the movement of the inner slider is more stable and reliable.

[0039] 3. In the slit multi-dimensional adjustable optical fiber quick-change device described in the present invention, the optical fiber coupler adopts a pull-out sleeve structure, which not only meets the adjustment of the incident focal length of the light, but also can meet the rapid replacement of different types of optical fibers and meet the diversity of optical fiber applicability.

[0040] 4. In the slit multi-dimensional adjustment optical fiber quick-change device described in the present invention, a high-precision micrometer is used to adjust the slit width, and the slit can be adjusted with high precision, effectively meeting the requirements of the spectrometer test resolution.

[0041] 5. In the slit multi-dimensional adjustment optical fiber quick-change device described in the present invention, the lever principle (setting of the connecting rod) is used to realize the opening and closing adjustment of the slit blade. The structural design is exquisite, and the implementation is simple and sensitive. It has strong operability and is suitable for small spectrometers. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the prior art descriptions. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0043] The accompanying drawings described herein are only for explanation purposes and are not intended to limit the scope of the present invention in any way. In addition, the shapes and proportional dimensions of the various components in the figures are only schematic, used to help understand the present invention, and are not specifically limited to the shapes and proportional dimensions of the various components of the present invention. Those skilled in the art can select various possible shapes and proportional dimensions to implement the present invention according to the teachings of the present invention.

[0044] Figure 1 This is a schematic diagram of the structure of the optical fiber quick-change device for multi-dimensional adjustment of the slit according to the present invention;

[0045] Figure 2 It is another structural schematic diagram of the optical fiber quick-change device for multi-dimensional adjustment of slits according to the present invention;

[0046] Figure 3 It is a schematic structural diagram of the inner sliding block of the present invention.

[0047] Description of reference numerals:

[0048] 10. outer frame; 11. first adjusting thread pair; 12. first elastic abutment member; 13. second adjusting thread pair; 14. second elastic abutment member; 15. short cylindrical pin; 16. long cylindrical pin; 17. double hook tension spring;

[0049] 20. inner slider; 21. slit blade; 22. adjustment rod; 23. first slider; 231. third elastic abutment member; 24. second slider; 241. fourth elastic abutment member; 242. fifth elastic abutment member; 25. linkage rod; 251. rotating shaft; 26. guide block; 261. guide block adjustment member; 27. steel ball;

[0050] 30. Fiber optic coupler;

[0051] A. First direction; B. Second direction. DETAILED DESCRIPTION

[0052] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0053] It should be noted that when an element is referred to as being "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only embodiment.

[0054] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0055] like Figure 1 and Figure 2 As shown, the present invention provides a slit multi-dimensional adjustment optical fiber quick-change device, which includes: an outer frame 10; an inner slider 20, located in the outer frame 10; a first adjustment component, arranged between the outer frame 10 and the inner slider 20, to drive the inner slider 20 to reciprocate relative to the outer frame 10 and in the outer frame 10 along a first direction A; a second adjustment component, arranged between the outer frame 10 and the inner slider 20, to drive the inner slider 20 to reciprocate relative to the outer frame 10 and in the outer frame 10 along a second direction B; a slit component, arranged on the inner slider 20, the slit component includes two slit blades 21 relatively and slidably arranged on the inner slider 20, a linkage is arranged between the two slit blades 21, under the action of the linkage, the two slit blades 21 can slide toward or away from each other to change the width of the slit; a slit adjustment component, arranged on the inner slider 20, the slit adjustment component has an adjustment rod 22 that can push one of the slit blades 21 to slide.

[0056] The optical fiber quick-change device with multi-dimensional adjustment of the slit of the present invention adopts the first adjustment component and the second adjustment component to fine-tune the slit position on the inner slider 20 in two different directions, with high movement accuracy and simple and convenient operation.

[0057] The slit multi-dimensional adjustment optical fiber quick-change device described in the present invention adopts a linkage to realize the linkage of two slit blades 21. Only one adjustment rod 22 is required to push the two slit blades 21 to slide toward or away from each other. It has a sophisticated and simple structure and strong operability, and is suitable for use in small spectrometers.

[0058] The specific structure of each part of the slit multi-dimensional adjustment optical fiber quick-change device of the present invention, as well as the position and connection relationship between the parts will be described in detail below.

[0059] like Figure 1 As shown, the slit multi-dimensional adjustable optical fiber quick-change device of the present invention mainly includes two parts: an outer frame 10 and an inner slider 20 . The inner slider 20 is movably arranged in the outer frame 10 .

[0060] Specifically, Figure 1 and Figure 2 As shown, the outer frame 10 is a rectangular frame with a hollow middle for assembling the inner slider 20; the inner slider 20 is a block-shaped structure assembled from a number of components, the inner slider 20 is arranged in the outer frame 10, and a certain gap is formed between the four side walls of the inner slider 20 and the inner side wall of the outer frame 10, so as to facilitate the adjustment of the position of the inner slider 20 relative to the outer frame 10.

[0061] A first adjustment component and a second adjustment component are provided between the inner slider 20 and the outer frame 10. Under the action of the first adjustment component, the inner slider 20 can reciprocate along the first direction A in the outer frame 10. Under the action of the second adjustment component, the inner slider 20 can reciprocate along the second direction B in the outer frame 10, thereby adjusting the position of the inner slider 20. The first adjustment component and the second adjustment component can adopt position adjustment devices commonly used in the prior art, such as setting adjustment knobs on both sides of the inner slider 20, or setting corresponding sliding tracks and driving motors separately, and converting the rotation of the motor into the sliding of the inner slider 20 through the transmission structure. The specific form of the adjustment component used for adjusting the position of the inner slider 20 can be selected according to actual needs, and is not specifically limited here.

[0062] Furthermore, a slit assembly capable of forming a slit is provided on the inner slider 20, and the slit assembly includes two slit blades 21, which are arranged opposite to each other and slidably mounted on the inner slider 20. When the width of the slit needs to be adjusted, the distance between the two slit blades 21 can be changed. Usually, each slit blade 21 needs to be connected to an adjustment member that drives it to slide. In order to simplify the structure, the present invention adopts a linkage method of the two. By setting a linkage member between the two slit blades 21, one of the slit blades 21 can drive the other slit blade 21 to slide together, thereby reducing the number of adjustment members. The linkage method of the two slit blades 21 can adopt a connecting rod structure, a gear structure, a chain structure, etc.; that is, the transmission method of the linkage member can be selected according to actual needs, and is not specifically limited here.

[0063] The inner slider 20 is also provided with an adjustment rod 22 for driving the slit blades 21 to slide relative to the inner slider 20. The end of the adjustment rod 22 can directly or indirectly push one of the slit blades 21 to slide. Driven by the linkage, the other slit blade 21 can slide in the opposite direction, thereby increasing or decreasing the width of the slit. The adjustment rod 22 can be a screw threadedly connected to the inner slider 20, and the slit blades 21 can be pushed to slide by rotating the screw.

[0064] Further, such as Figure 2 As shown, a notch is provided at the position of the outer frame 10 corresponding to the adjusting rod 22 to avoid interference between the adjusting rod 22 and the outer frame 10 and facilitate the operator to perform the screwing operation.

[0065] The structure and technical effects of the preferred embodiment of the slit multi-dimensional adjustment optical fiber quick-change device of the present invention will be further described below.

[0066] According to one embodiment of the present invention, Figure 2 As shown, the first direction A is perpendicular to the second direction B; the two adjustment directions of the inner slider 20 are perpendicular to each other, which is convenient for operators to perform position adjustment operations. In this embodiment, the first direction A is a horizontal direction, and the second direction B is a vertical direction.

[0067] According to one embodiment of the present invention, Figure 2 As shown, the first adjustment component includes: a first adjustment thread pair 11, which is arranged on the outer frame 10, and the end of the adjustment screw in the first adjustment thread pair 11 abuts against a side wall of the inner slider 20; a first elastic abutment 12, which is arranged on the outer frame 10, and the first elastic abutment 12 abuts against a side wall of the inner slider 20, and the first adjustment thread pair 11 and the first elastic abutment 12 are respectively located on opposite sides of the inner slider 20; wherein, the axis of the adjustment screw in the first adjustment thread pair 11 and the elastic force direction of the first elastic abutment 12 are both parallel to the first direction A (horizontal direction).

[0068] The first adjustment component adopts a structure in which a high-precision thread pair and an elastic abutment member cooperate to realize the left and right micro-movement function of the inner slider 20 in the horizontal direction, with high movement accuracy and simple and convenient operation.

[0069] Specifically, Figure 2 As shown, the first adjusting thread pair 11 includes a nut sleeve and an adjusting screw. The nut sleeve is fixed on the opening of the side wall of the outer frame 10. The opening is a through hole. The adjusting screw is threadedly connected to the nut sleeve. The end of the adjusting screw located on the outside of the outer frame 10 has an adjusting knob, and the end of the adjusting screw located on the inside of the outer frame 10 abuts against the side wall of the inner slider 20. The first elastic abutment 12 is also installed on the outer frame 10, and the first elastic abutment 12 and the first adjusting thread pair 11 are respectively located on the two sides corresponding to the inner slider 20, and the first elastic abutment 12 has a certain elasticity. When the adjusting screw in the first adjusting thread pair 11 is tightened, the inner slider 20 moves toward the first elastic abutment 12 (moves toward the left) and compresses it; when the adjusting screw in the first adjusting thread pair 11 is loosened, the first elastic abutment 12 returns to its original state and pushes the inner slider 20 to move toward the first adjusting thread pair 11 (moves toward the right).

[0070] Better, such as Figure 2 As shown, the first elastic abutment 12 includes a spring and an abutment seat. The spring is arranged in an opening of the inner wall of the outer frame 10. The abutment seat is connected to the spring. The abutment seat can abut against the inner slider 20 under the action of the spring to provide a restoring force to the inner slider 20 toward the first adjusting thread pair 11.

[0071] Specifically, a hole is opened on the side wall of the outer frame 10 opposite to the first adjusting thread pair 11. The hole can be a countersunk hole or a through hole. If it is a through hole, a plug needs to be provided on the outside of the through hole. The spring is installed in the above-mentioned hole, one end of the spring abuts against the bottom wall of the hole, and the other end of the spring is connected to the abutment seat, and the abutment seat abuts against the side wall of the inner slider 20. A groove is opened on the side wall of the inner slider 20 corresponding to the position of the abutment seat, and the end of the abutment seat can be embedded in the corresponding groove, thereby realizing the limitation of the inner slider 20. In order to improve the stability of the inner slider 20 during the movement process, a plurality of the above-mentioned first elastic abutment members 12 can be arranged side by side on the side wall of the outer frame 10.

[0072] According to one embodiment of the present invention, Figure 2 As shown, on the side provided with the first adjusting thread pair 11, a double hook tension spring 17 is connected between the outer frame 10 and the inner slider 20. The double hook tension spring 17 and the first elastic abutment member 12 are respectively located on opposite sides of the inner slider 20, and the cooperation of the two can further improve the stability of the inner slider 20 when it moves in the first direction A (horizontal direction).

[0073] Specifically, Figure 2 As shown, a short cylindrical pin 15 is installed on the inner slider 20, a long cylindrical pin 16 is installed on the outer frame 10, and both ends of the double hook tension spring 17 are respectively hung on the short cylindrical pin 15 and the long cylindrical pin 16. In order to further improve stability, multiple double hook tension springs 17 can be arranged side by side between the outer frame 10 and the inner slider 20.

[0074] According to one embodiment of the present invention, Figure 2 As shown, the second adjustment component includes: a second adjustment thread pair 13, which is arranged on the outer frame 10, and the end of the adjustment screw in the second adjustment thread pair 13 abuts against a side wall of the inner slider 20; a second elastic abutment 14, which is arranged on the outer frame 10, and the second elastic abutment 14 abuts against a side wall of the inner slider 20, and the second adjustment thread pair 13 and the second elastic abutment 14 are respectively located on opposite sides of the inner slider 20; wherein, the axis of the adjustment screw in the second adjustment thread pair 13 and the elastic force direction of the second elastic abutment 14 are both parallel to the second direction B.

[0075] Preferably, the second elastic abutment 14 includes a spring and an abutment seat, the spring is arranged in an opening of the inner wall of the outer frame 10, the abutment seat is connected to the spring, and the abutment seat can abut against the inner slider 20 under the action of the spring to provide a restoring force to the inner slider 20 toward the second adjusting thread pair 13.

[0076] The structure of the second adjusting thread pair 13 is basically the same as that of the first adjusting thread pair 11 , and the structure of the second elastic abutment 14 is basically the same as that of the first elastic abutment 12 . The only difference is the setting position and direction, which will not be repeated here.

[0077] According to one embodiment of the present invention, Figure 2 As shown, on the side where the second adjusting thread pair 13 is provided, a double-hook tension spring 17 is connected between the outer frame 10 and the inner slider 20. The double-hook tension spring 17 and the second elastic abutment member 14 are respectively located on opposite sides of the inner slider 20, and the cooperation of the two can further improve the stability of the inner slider 20 when it moves in the second direction B (vertical direction). The connection structure of the double-hook tension spring 17 has been described above and will not be repeated here.

[0078] According to one embodiment of the present invention, Figure 2 and Figure 3 As shown, the inner slider 20 is provided with two parallel slideways, on which the first slide bar 23 and the second slide bar 24 are slidably clamped respectively, and the two slit blades 21 are respectively arranged on the first slide bar 23 and the second slide bar 24, and the adjustment rod 22 can push the first slide bar 23 or the second slide bar 24 to slide.

[0079] Specifically, in the present embodiment, an upper slideway and a lower slideway which are opposite to each other are provided on the inner slider 20, the first slide bar 23 is installed on the upper slideway, and the second slide bar 24 is installed on the lower slideway; the length direction of the first slide bar 23 and the length direction of the second slide bar 24 are both arranged along the first direction A (horizontal direction), and a slit blade 21 is installed on the first slide bar 23 and the second slide bar 24 by screws, wherein one slit blade 21 is installed at the right end of the first slide bar 23, and the other slit blade 21 is installed at the left end of the second slide bar 24.

[0080] According to one embodiment of the present invention, Figure 3 As shown, one side of the first slide bar 23 is abutted against the third elastic abutment 231, and one side of the second slide bar 24 is abutted against the fourth elastic abutment 241. The third elastic abutment 231 and the fourth elastic abutment 241 are both arranged on the inner slider 20. The third elastic abutment 231 can provide a thrust force for the first slide bar 23 toward the second slide bar 24, and the fourth elastic abutment 241 can provide a thrust force for the second slide bar 24 toward the first slide bar 23.

[0081] By providing the third elastic abutment member 231 and the fourth elastic abutment member 241 , the slide bar is brought close to the inner surface of the corresponding slideway, thereby preventing the slide bar from slightly shaking and affecting the adjustment accuracy of the slit.

[0082] Better, such as Figure 3 As shown, the third elastic abutment 231 includes a spring and a top ball, the spring is arranged in the opening hole of the inner slider 20, and the top ball is located between the spring and the first slide bar 23; the fourth elastic abutment 241 includes a spring and a top ball, the spring is arranged in the opening hole of the inner slider 20, and the top ball is located between the spring and the second slide bar 24.

[0083] Specifically, above the first slide bar 23 and below the second slide bar 24, a hole is opened on the inner slide 20. The hole can be a countersunk hole or a through hole. If it is a through hole, a plug needs to be set on the outside of the through hole. The spring is installed in the above-mentioned hole, one end of the spring abuts against the bottom wall of the hole, and the other end of the spring abuts against the top bead, so that the top bead abuts against the side wall of the corresponding slide bar. In order to further improve the adjustment accuracy of the slit, a plurality of third elastic abutting members 231 are arranged at intervals on the inner slide 20 along the length direction of the first slide bar 23; and a plurality of fourth elastic abutting members 241 are arranged at intervals on the inner slide 20 along the length direction of the second slide bar 24.

[0084] According to one embodiment of the present invention, Figure 2 and Figure 3As shown, the linkage member includes a linkage rod 25, which is connected to the inner slider 20 via a rotating shaft 251. The linkage rod 25 is located at the same end of the first slider 23 and the second slider 24, and the two ends of the linkage rod 25 are respectively abutted against the end of the first slider 23 and the end of the second slider 24. The linkage between the first slider 23 and the second slider 24 is achieved by using the lever principle, and the structural design is exquisite, which facilitates the miniaturization of the structure.

[0085] Specifically, the linkage rod 25 is arranged on the right side of the first slide bar 23 and the second slide bar 24, and the middle part of the linkage rod 25 is fixed on the inner slide bar 20 through a rotating shaft 251. The linkage rod 25 can rotate relative to the rotating shaft 251, and the upper end of the linkage rod 25 abuts against the right end of the first slide bar 23, and the lower end of the linkage rod 25 abuts against the right end of the second slide bar 24; preferably, a roller is connected to both ends of the linkage rod 25, and the linkage rod 25 abuts against the first slide bar 23 and the second slide bar 24 through the roller. When the first slide bar 23 slides toward the right side, it will push the linkage rod 25 to rotate clockwise, and the linkage rod 25 drives the second slide bar 24 to slide toward the left side, thereby increasing the width of the slit; when the second slide bar 24 slides toward the right side, it will push the linkage rod 25 to rotate counterclockwise, and the linkage rod 25 drives the first slide bar 23 to slide toward the left side, thereby reducing the width of the slit.

[0086] According to one embodiment of the present invention, Figure 2 and Figure 3 As shown, the end of the second slide bar 24 away from the linkage rod 25 abuts against a fifth elastic abutment member 242 , and the fifth elastic abutment member 242 is provided on the inner slide block 20 .

[0087] The fifth elastic abutment 242 has a certain elasticity. When the adjusting rod 22 is tightened, the second slide bar 24 slides toward the fifth elastic abutment 242 (slides to the left) and compresses it, and the width of the slit increases; when the adjusting rod 22 is loosened, the fifth elastic abutment 242 returns to its original state and pushes the second slide bar 24 to slide to the right, and the width of the slit decreases.

[0088] Better, such as Figure 3 As shown, the fifth elastic abutment 242 includes a spring and an abutment seat. The spring is arranged in the opening of the inner slider 20. The abutment seat is connected to the spring. The abutment seat can abut against the end of the second slide bar 24 under the action of the spring to provide a restoring force to the second slide bar 24 toward the connecting rod 25.

[0089] Specifically, a hole is opened at a position opposite to the left end of the inner slider 20 and the second slide bar 24. The hole can be a countersunk hole or a through hole. If it is a through hole, a plug needs to be provided on the outside of the through hole. The spring is installed in the above-mentioned opening, one end of the spring abuts against the bottom wall of the opening, and the other end of the spring is connected to the abutment seat, which abuts against the left end of the second slide bar 24.

[0090] According to one embodiment of the present invention, Figure 2 and Figure 3 As shown, a guide block 26 is further provided on the inner slider 20 , a triangular groove is formed between one end of the guide block 26 and one end of the first slide bar 23 , a steel ball 27 is provided in the triangular groove, and the end of the adjusting rod 22 can abut against the steel ball 27 .

[0091] Specifically, the guide block 26 is installed on the left side of the first slide bar 23. The upper end of the guide block 26 has an inclined surface, and a triangular groove is formed between the inclined surface and the left end surface of the first slide bar 23. A steel ball 27 is placed in the triangular groove. By rotating the adjusting rod 22, the steel ball 27 can slide along the above-mentioned inclined surface, thereby pushing the first slide bar 23 to slide toward the right side, that is, the vertical linear motion is converted into horizontal linear motion through the triangular groove formed between the guide block 26 and the first slide bar 23.

[0092] According to one embodiment of the present invention, Figure 3 As shown, a guide block adjusting member 261 is provided at one end of the guide block 26 away from the triangular groove, and the guide block adjusting member 261 can push the guide block 26 to move so as to change the position of the triangular groove.

[0093] According to one embodiment of the present invention, Figure 1 As shown, the slit multi-dimensional adjustment optical fiber quick-change device also includes an optical fiber coupler 30. The inner slider 20 is provided with a circular hole at the position corresponding to the slit, and the optical fiber coupler 30 is arranged in the circular hole. The optical fiber coupler 30 is a pull-out sleeve structure, which can realize front and rear focal length adjustment. At the same time, the optical fiber coupler 30 can replace multiple optical fiber conversion joints to realize different types of optical fiber quick change.

[0094] According to one embodiment of the present invention, Figure 1 As shown, the adjustment rod 22 is a micrometer; the adjustment accuracy of the micrometer (micrometer) is relatively high and can meet the requirements of the resolution of the micro-spectrometer test.

[0095] The specific embodiments described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A slit multi-dimensional adjustment optical fiber quick-change device, characterized in that: include: Outer frame (10); An inner sliding block (20) located inside the outer frame (10); A first adjustment component is provided between the outer frame (10) and the inner slider (20) to drive the inner slider (20) to reciprocate in the outer frame (10) along a first direction (A); A second adjustment component is provided between the outer frame (10) and the inner slider (20) to drive the inner slider (20) to reciprocate in the outer frame (10) along a second direction (B); A slit assembly is arranged on the inner slider (20), the slit assembly comprising two slit blades (21) which are relatively and slidably arranged on the inner slider (20), a linkage being arranged between the two slit blades (21), and driven by the linkage, the two slit blades (21) can slide towards or away from each other to change the width of the slit; A slit adjustment component, disposed on the inner slider (20), the slit adjustment component having an adjustment rod (22) capable of pushing one of the slit blades (21) to slide; The inner slide block (20) is provided with two parallel slideways, and the two slideways are respectively slidably provided with a first slide bar (23) and a second slide bar (24), and the two slit blades (21) are respectively provided on the first slide bar (23) and the second slide bar (24), and the adjustment rod (22) can push the first slide bar (23) or the second slide bar (24) to slide; The inner slide block (20) is further provided with a guide block (26), a triangular groove is formed between one end of the guide block (26) and one end of the first slide bar (23), a steel ball (27) is provided in the triangular groove, and the end of the adjusting rod (22) can abut against the steel ball (27); A guide block adjusting member (261) is provided at one end of the guide block (26) away from the triangular groove, and the guide block adjusting member (261) can push the guide block (26) to move so as to change the position of the triangular groove.

2. The slit multi-dimensional adjustment optical fiber quick-change device according to claim 1, characterized in that: The first direction (A) is perpendicular to the second direction (B).

3. The slit multi-dimensional adjustment optical fiber quick-change device according to claim 1, characterized in that: The first adjustment component comprises: A first adjusting thread pair (11) is provided on the outer frame (10), wherein the end of the adjusting screw in the first adjusting thread pair (11) abuts against a side wall of the inner sliding block (20); a first elastic abutment member (12) disposed on the outer frame (10), the first elastic abutment member (12) abutting against a side wall of the inner sliding block (20), the first adjusting thread pair (11) and the first elastic abutment member (12) being respectively located on opposite sides of the inner sliding block (20); Wherein, the axis of the adjusting screw in the first adjusting thread pair (11) and the elastic force direction of the first elastic abutment member (12) are both parallel to the first direction (A).

4. The slit multi-dimensional adjustment optical fiber quick-change device according to claim 3, characterized in that: The first elastic abutment member (12) comprises a spring and an abutment seat, wherein the spring is arranged in an opening of an inner wall of the outer frame (10), and the abutment seat is connected to the spring. The abutment seat can abut against the inner slider (20) under the drive of the spring to provide a restoring force to the inner slider (20) toward the first adjusting thread pair (11).

5. The slit multi-dimensional adjustment optical fiber quick-change device according to claim 3 or 4, characterized in that: On the side where the first adjusting thread pair (11) is provided, a double-hook tension spring (17) is connected between the outer frame (10) and the inner sliding block (20).

6. The slit multi-dimensional adjustment optical fiber quick-change device according to claim 1 or 3, characterized in that: The second adjustment component comprises: A second adjusting thread pair (13) is provided on the outer frame (10), wherein the end of the adjusting screw in the second adjusting thread pair (13) abuts against a side wall of the inner sliding block (20); a second elastic abutment member (14) disposed on the outer frame (10), the second elastic abutment member (14) abutting against a side wall of the inner sliding block (20), the second adjusting thread pair (13) and the second elastic abutment member (14) being respectively located on opposite sides of the inner sliding block (20); Wherein, the axis of the adjusting screw in the second adjusting thread pair (13) and the elastic force direction of the second elastic abutment member (14) are both parallel to the second direction (B).

7. The slit multi-dimensional adjustment optical fiber quick-change device according to claim 6, characterized in that: The second elastic abutment member (14) comprises a spring and an abutment seat, wherein the spring is arranged in an opening of the inner wall of the outer frame (10), and the abutment seat is connected to the spring. The abutment seat can abut against the inner slider (20) under the drive of the spring to provide a restoring force to the inner slider (20) toward the second adjusting thread pair (13).

8. The slit multi-dimensional adjustment optical fiber quick-change device according to claim 6, characterized in that: On the side where the second adjusting thread pair (13) is provided, a double-hook tension spring (17) is connected between the outer frame (10) and the inner sliding block (20).

9. The slit multi-dimensional adjustment optical fiber quick-change device according to claim 1, characterized in that: A third elastic abutment member (231) is abutted on one side of the first slide bar (23), and a fourth elastic abutment member (241) is abutted on one side of the second slide bar (24). The third elastic abutment member (231) and the fourth elastic abutment member (241) are both arranged on the inner slide bar (20). The third elastic abutment member (231) can provide a thrust force for the first slide bar (23) toward the second slide bar (24), and the fourth elastic abutment member (241) can provide a thrust force for the second slide bar (24) toward the first slide bar (23).

10. The slit multi-dimensional adjustment optical fiber quick-change device according to claim 9, characterized in that: The third elastic abutment member (231) comprises a spring and a top ball, the spring being arranged in an opening of the inner slider (20), and the top ball being located between the spring and the first slider (23); and / or the fourth elastic abutment member (241) comprises a spring and a top ball, the spring being arranged in an opening of the inner slider (20), and the top ball being located between the spring and the second slider (24).

11. The slit multi-dimensional adjustment optical fiber quick-change device according to claim 1, characterized in that: The linkage member comprises a linkage rod (25), the linkage rod (25) being connected to the inner slide block (20) via a rotating shaft (251), the linkage rod (25) being located at the same end of the first slide bar (23) and the second slide bar (24), and the two ends of the linkage rod (25) being respectively in contact with the end of the first slide bar (23) and the end of the second slide bar (24).

12. The slit multi-dimensional adjustment optical fiber quick-change device according to claim 11, characterized in that: The adjusting rod (22) can push the first sliding bar (23) to slide, and the end of the second sliding bar (24) away from the linkage rod (25) is in contact with a fifth elastic abutment member (242), and the fifth elastic abutment member (242) is provided on the inner sliding block (20).

13. The slit multi-dimensional adjustment optical fiber quick-change device according to claim 12, characterized in that: The fifth elastic abutment member (242) comprises a spring and an abutment seat, wherein the spring is arranged in an opening of the inner slider (20), and the abutment seat is connected to the spring. Driven by the spring, the abutment seat can abut against the end of the second slide bar (24) to provide a restoring force to the second slide bar (24) toward the linkage rod (25).

14. The slit multi-dimensional adjustment optical fiber quick-change device according to claim 1, characterized in that: The slit multi-dimensional adjustable optical fiber quick-change device further comprises an optical fiber coupler (30); a circular hole is provided at a position of the inner sliding block (20) corresponding to the slit, and the optical fiber coupler (30) is arranged in the circular hole.

15. The slit multi-dimensional adjustable optical fiber quick-change device according to claim 1, characterized in that: The adjusting rod (22) is a micrometer.

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