Extensible objective table of Raman spectrometer

Abstract

The utility model relates to the field of expandable objective tables of Raman spectrometers, in particular to an expandable objective table of a Raman spectrometer, which comprises an adjusting mechanism, and a lifting mechanism is arranged at the top of the adjusting mechanism. The detection expansion lead screw drives the two stirring frames to be far away from each other and pushes the corresponding detection expansion table to slide along the bottom of the detection objective table, and the connection frame moves at the bottom of the detection objective table to lift the detection expansion table to be flush with the detection objective table. Meanwhile, the bottom of the detection expansion table is supported by the stirring frame which continues to move, the placing area of the whole detection objective table is expanded immediately, the two detection expansion frames are far away from the two sides of the detection sliding seat, and a large detected substance can be placed between the two detection expansion frames; and then the detected substances are pressed and fixed through the detection pressing plate, so that different types of objects and the detected substances with different sizes can be conveniently placed.

Description

Technical Field

[0001] The utility model relates to the field of an expandable stage for a Raman spectrometer, in particular to an expandable stage for a Raman spectrometer. Background Art

[0002] According to the patent document with the publication number CN 221174363 U, the detection container is placed on a stage with a circular storage compartment or a stage with a square storage compartment, and the stage can be raised and lowered by the second electric telescopic rod while rotating the stage. The motor 1 drives the bevel gear 1 to mesh with the bevel gear 2, so the bevel gear 1 drives the bevel gear 2, thereby driving the first electric telescopic rod to rotate and make the detected substance rotate on the circular stage. The output end of the motor 2 drives the gear 3 to rotate, and the gear 3 drives the adjusting bolt to move, thereby changing the distance between the sample and the spectrometer.

[0003] During testing, the patent document has the stage of the circular storage compartment and the stage of the square storage compartment in a fixed state and cannot be folded and stored, which will increase the volume of the entire stage. Since the volume of the entire Raman spectrometer is limited, for some materials that need to be adjusted in both directions during testing, the movement of the stage may cause the two sides of the stage to collide with the Raman spectrometer. Utility Model Content

[0004] The purpose of the utility model is to provide an expandable stage for a Raman spectrometer in order to solve the above problems.

[0005] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0006] An expandable stage for a Raman spectrometer includes an adjustment mechanism, a lifting mechanism is provided on the top of the adjustment mechanism, an expansion mechanism for placing a substance to be detected, and a fixing mechanism for pressing the substance to be detected;

[0007] The expansion mechanism includes a detection stage, a concave groove is provided at the rear side of the detection stage, and a detection expansion lead screw is rotatably connected in the concave groove, a detection expansion motor is fixedly provided at the input end of the detection expansion lead screw, two symmetrical detection expansion stages are provided at the bottom of the detection stage, and a connecting frame is hinged at one end of the two detection expansion stages close to each other, a sliding groove for sliding the connecting frame is provided at the bottom of the detection stage, a toggle frame of a Z-shaped structure is provided at the lower side of the detection expansion stage, and a sliding block for sliding in the concave groove is fixed at the rear end of the toggle frame;

[0008] The fixing mechanism includes a detection sliding seat, detection extension frames are provided on both sides of the detection sliding seat, and multiple detection pressure plates are provided on the front side of the detection extension frame. A guide rod is slidably connected inside the detection sliding seat, and one end of the guide rod extending out of the detection sliding seat is fixed at the rear end of the detection extension frame. An axis rod for passing through multiple detection pressure plates is provided on the detection extension frame, and the detection pressure plate and the axis rod are connected by a torsion spring.

[0009] Preferably, two T-slots are formed on the top of the detection stage, and a T-seat for sliding in the two T-slots is fixed on the bottom of the detection sliding seat.

[0010] Preferably: the adjustment mechanism includes a base, two slide rails are provided on the top of the base, and side slide frames are slidably connected to the two slide rails, a second adjustment screw is rotatably connected to the middle position of the base for driving the side slide frame to move, a second drive motor is fixedly provided at the input end of the second adjustment screw, a first adjustment screw is rotatably connected to the upper side of the side slide frame, and a first drive motor is fixedly provided at the input end of the first adjustment screw.

[0011] Preferably: the lifting mechanism includes a moving frame, a threaded hole for engaging with the first adjusting screw is opened at the lower end of the moving frame, a lifting frame is provided on the front side of the moving frame, a lifting screw for driving the lifting frame to move up and down is rotatably connected inside the moving frame, a worm gear is fixed to the lower end of the lifting screw, a worm is meshed with the rear side of the worm gear, and a third drive motor is fixedly provided at the input end of the worm.

[0012] Preferably: a sliding groove for allowing the lifting frame to slide up and down is opened on the front side of the moving frame.

[0013] Preferably, a sliding hole is provided inside the detection sliding seat, and a spring for pushing the guide rod is provided in the sliding hole.

[0014] The beneficial effects compared with the prior art are as follows:

[0015] 1. The detection extension screw drives the two toggle racks to move away from each other and pushes the corresponding detection extension platform to slide along the bottom of the detection stage. The connection rack moves at the bottom of the detection stage to lift the detection extension platform to the same level as the detection stage. At the same time, the toggle rack that continues to move is used to support the bottom of the detection extension platform, thereby expanding the placement area of ​​the entire detection stage.

[0016] 2. By moving the two detection extension frames away from each other on both sides of the detection sliding seat, a larger object to be detected can be placed between the two detection extension frames, and then the object to be detected can be pressed and fixed by the detection pressing plate, which makes it easy to place objects of different types and sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a structural schematic diagram of an expandable stage of a Raman spectrometer described in the utility model;

[0019] Figure 2 It is a diagram showing the coordination of a detection stage and two detection extension stages of an expandable stage of a Raman spectrometer described in the utility model;

[0020] Figure 3 This is a diagram showing the coordination of a connecting frame, a shifting frame and a detection expansion platform of an expandable stage of a Raman spectrometer described in the utility model;

[0021] Figure 4 It is a cross-sectional view of a lifting mechanism of an expandable stage of a Raman spectrometer described in the utility model;

[0022] Figure 5 It is a cross-sectional view of a fixing mechanism of an expandable stage of a Raman spectrometer described in the utility model;

[0023] Figure 6 It is a partial parts diagram of a detection stage of an expandable stage of a Raman spectrometer described in the utility model;

[0024] Figure 7 It is a partial parts diagram of the fixing mechanism of the expandable stage of the Raman spectrometer described in the utility model;

[0025] Figure 8 This is a diagram of the connection frame and the detection expansion platform of the expandable stage of the Raman spectrometer described in the utility model;

[0026] Fig. 9 This is a partial parts diagram of the adjustment mechanism of the expandable stage of the Raman spectrometer described in the utility model.

[0027] The following are the descriptions of the reference numerals:

[0028] 1. Expansion mechanism; 2. Fixing mechanism; 3. Lifting mechanism; 4. Adjusting mechanism; 11. Detection stage; 12. Detection extension motor; 13. Detection extension screw; 14. Detection extension platform; 15. Connecting frame; 16. Sliding frame; 21. Detection sliding seat; 22. Detection extension frame; 23. Detection pressure plate; 31. Lifting frame; 32. Moving frame; 33. Lifting screw; 34. Worm; 41. Side sliding frame; 42. First adjusting screw; 43. Base; 44. Second adjusting screw. DETAILED DESCRIPTION

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0030] The utility model is further described below in conjunction with the accompanying drawings:

[0031] like Figure 1-Figure 9 As shown, an expandable stage of a Raman spectrometer includes an adjustment mechanism 4, a lifting mechanism 3 is provided on the top of the adjustment mechanism 4, an expansion mechanism 1 for placing a substance to be detected, and a fixing mechanism 2 for pressing the substance to be detected;

[0032] In this embodiment: the expansion mechanism 1 includes a detection stage 11, a concave groove is provided at the rear side of the detection stage 11, and a detection expansion lead screw 13 is rotatably connected in the concave groove, a detection expansion motor 12 is fixedly provided at the input end of the detection expansion lead screw 13, two symmetrical detection expansion stages 14 are provided at the bottom of the detection stage 11, and a connecting frame 15 is hinged at one end of the two detection expansion stages 14 close to each other, a sliding groove for sliding the connecting frame 15 is provided at the bottom of the detection stage 11, a toggle frame 16 of a Z-shaped structure is provided at the lower side of the detection expansion stage 14, and a toggle frame 16 is fixed at the rear end for The sliding block sliding in the concave groove drives the detection extension lead screw 13 to rotate by utilizing the rotating part of the detection extension motor 12. The rotation of the detection extension lead screw 13 drives the two sliding blocks to make the corresponding toggle frames 16 move away from each other. The two toggle frames 16 move away from each other to push the two detection extension platforms 14. At the same time, the connecting frame 15 on the detection extension platform 14 moves along the slide groove of the detection stage 11. When the detection extension platform 14 moves to both ends of the detection stage 11, the detection extension platform 14 is lifted to be flush with the detection stage 11 as the toggle frame 16 continues to move.

[0033] In this embodiment: the fixing mechanism 2 includes a detection sliding seat 21, detection extension frames 22 are provided on both sides of the detection sliding seat 21, and a plurality of detection pressing plates 23 are provided on the front side of the detection extension frame 22. A guide rod is slidably connected inside the detection sliding seat 21, and one end of the guide rod extending from the detection sliding seat 21 is fixed to the rear end of the detection extension frame 22. An axial rod for passing through the plurality of detection pressing plates 23 is provided on the detection extension frame 22, and the detection pressing plate 23 is connected to the axial rod by a torsion spring. A sliding hole is provided inside the detection sliding seat 21, and a spring for pushing the guide rod is provided in the sliding hole. Two T-slots are provided on the top of the test stage 11, and a T-seat for sliding in the two T-slots is fixed at the bottom of the test sliding seat 21. The two test extension frames 22 are pulled away from each other. During this process, the guide rod on the test extension frame 22 will be pulled out of the inside of the test sliding seat 21 by a certain distance. By moving the two test extension frames 22 away from each other, the distance between the test pressure plates 23 on both sides is increased. At this time, a larger material to be tested can be placed on the test stage 11, and then the test pressure plate 23 is pressed on the material to be tested for fixation through the torsion spring on the shaft.

[0034] In this embodiment: the adjusting mechanism 4 includes a base 43, two slide rails are provided on the top of the base 43, and the side slide 41 is slidably connected to the two slide rails, and a second adjusting screw 44 for driving the side slide 41 to move is rotatably connected to the middle position of the base 43, and a second driving motor is fixedly provided at the input end of the second adjusting screw 44, and a first adjusting screw 42 is rotatably connected to the upper side of the side slide 41, and a first driving motor is fixedly provided at the input end of the first adjusting screw 42, and the second driving motor is used to drive the second adjusting screw 44 to rotate, and the rotation of the second adjusting screw 44 drives the side slide 41 to reciprocate on both sides of the base 43, and in addition, the first adjusting screw 42 is driven to rotate by the first driving motor, and the rotation of the first adjusting screw 42 drives the lifting mechanism 3 to move front and back.

[0035] In this embodiment: the lifting mechanism 3 includes a moving frame 32, a threaded hole for engaging with the first adjusting screw 42 is provided at the lower end of the moving frame 32, a lifting frame 31 is provided on the front side of the moving frame 32, and a lifting screw 33 is rotatably connected inside the moving frame 32 for driving the lifting frame 31 to move up and down, a worm gear is fixed to the lower end of the lifting screw 33, a worm 34 is meshed on the rear side of the worm gear, a third driving motor is fixed to the input end of the worm 34, a sliding groove for allowing the lifting frame 31 to slide up and down is provided on the front side of the moving frame 32, the worm 34 is driven to rotate by the third driving motor, and the lifting screw 33 is driven to rotate by the worm 34 through the worm gear, and the lifting frame 31 is moved up and down in front of the moving frame 32 by the rotation of the lifting screw 33, thereby adjusting the height of the detection platform 11.

[0036] Working principle: When it is necessary to inspect items on the inspected material, the inspected material is placed on the inspection stage 11, and the two inspection stretching frames 22 are pulled away from each other. During this process, the guide rod on the inspection stretching frame 22 is pulled out of the inspection sliding seat 21 for a certain distance, and the distance between the two inspection pressure plates 23 on both sides is increased by moving the two inspection stretching frames 22 away from each other. At this time, a larger inspected material can be placed between the two inspection stretching frames 22, and then the torsion spring on the shaft of the inspection stretching frame 22 is used to press the inspection pressure plate 23 on the inspected material, and then the inspected material is pressed and fixed by the inspection pressure plate 23;

[0037] When the height of the detection stage 11 needs to be adjusted, the worm 34 is driven to rotate by the third driving motor, and the worm 34 drives the lifting screw 33 to rotate through the worm gear. The lifting screw 33 is rotated to move the lifting frame 31 up and down in front of the moving frame 32, thereby adjusting the height of the detection stage 11;

[0038] When the movement of the detection stage 11 on both sides needs to be adjusted, the second drive motor drives the second adjusting screw 44 to rotate, and the rotation of the second adjusting screw 44 drives the side slide 41 to reciprocate on both sides on the base 43. In addition, the first drive motor drives the first adjusting screw 42 to rotate, and the rotation of the first adjusting screw 42 drives the lifting mechanism 3 to move forward and backward on both sides;

[0039] When it is necessary to expand the area of ​​the entire detection platform 11 for detection, the detection expansion screw 13 is driven to rotate by the rotating part of the detection expansion motor 12, and the rotation of the detection expansion screw 13 drives the two sliding blocks to make the corresponding toggle frames 16 move away from each other, and the two detection expansion platforms 14 are pushed by the mutual movement of the two toggle frames 16. At the same time, the connecting frame 15 on the detection expansion platform 14 will move along the slide groove of the detection platform 11. When the detection expansion platform 14 moves to the two ends of the detection platform 11, as the toggle frame 16 continues to move, the detection expansion platform 14 is lifted to a state flush with the detection platform 11, thereby expanding the area of ​​the entire detection platform 11; when it is necessary to move the detection platform 11 at a uniform speed to observe the state of the object, the uniform rotation of the second adjusting screw 44 allows the side slide frame 41 to drive the lifting frame 31 and the detection platform 11 to move slowly and uniformly.

[0040] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. An expandable stage for a Raman spectrometer, comprising an adjustment mechanism (4), wherein a lifting mechanism (3) is provided on the top of the adjustment mechanism (4), characterized in that: It also includes an expansion mechanism (1) for placing the substance to be detected and a fixing mechanism (2) for compacting the substance to be detected; The expansion mechanism (1) comprises a detection platform (11), a concave groove is provided on the rear side of the detection platform (11), and a detection expansion lead screw (13) is rotatably connected in the concave groove, a detection expansion motor (12) is fixedly arranged at the input end of the detection expansion lead screw (13), two symmetrical detection expansion platforms (14) are provided at the bottom of the detection platform (11), and a connecting frame (15) is hinged at one end of the two detection expansion platforms (14) close to each other, a sliding groove for allowing the connecting frame (15) to slide is provided at the bottom of the detection platform (11), and a toggle frame (16) with a Z-shaped structure is provided on the lower side of the detection expansion platform (14), and a sliding block for sliding in the concave groove is fixed at the rear end of the toggle frame (16); The fixing mechanism (2) comprises a detection sliding seat (21), detection extension frames (22) are provided on both sides of the detection sliding seat (21), a plurality of detection pressing plates (23) are provided on the front side of the detection extension frame (22), a guide rod is slidably connected inside the detection sliding seat (21), and one end of the guide rod extending from the detection sliding seat (21) is fixed to the rear end of the detection extension frame (22), a shaft rod for passing through the plurality of detection pressing plates (23) is provided on the detection extension frame (22), and the detection pressing plate (23) is connected to the shaft rod via a torsion spring.

2. The expandable stage of a Raman spectrometer according to claim 1, characterized in that: The top of the detection stage (11) is provided with two T-shaped slots, and the bottom of the detection sliding seat (21) is fixed with a T-shaped seat for sliding in the two T-shaped slots.

3. The expandable stage of a Raman spectrometer according to claim 1, characterized in that: The adjustment mechanism (4) comprises a base (43), the top of the base (43) is provided with two slide rails, and the two slide rails are slidably connected to a side slide frame (41), a second adjustment screw (44) is rotatably connected to the middle position of the base (43) for driving the side slide frame (41) to move, a second drive motor is fixedly arranged at the input end of the second adjustment screw (44), and a first adjustment screw (42) is rotatably connected to the upper side of the side slide frame (41), and a first drive motor is fixedly arranged at the input end of the first adjustment screw (42).

4. The expandable stage of a Raman spectrometer according to claim 3, characterized in that: The lifting mechanism (3) comprises a moving frame (32), a threaded hole for engaging with a first adjusting screw (42) is provided at the lower end of the moving frame (32), a lifting frame (31) is provided at the front side of the moving frame (32), a lifting screw (33) is rotatably connected inside the moving frame (32) for driving the lifting frame (31) to move up and down, a worm wheel is fixed at the lower end of the lifting screw (33), a worm (34) is meshed at the rear side of the worm wheel, and a third driving motor is fixedly provided at the input end of the worm (34).

5. The expandable stage of a Raman spectrometer according to claim 4, characterized in that: The front side of the movable frame (32) is provided with a sliding groove for allowing the lifting frame (31) to slide up and down.

6. The expandable stage of a Raman spectrometer according to claim 1, characterized in that: A sliding hole is provided inside the detection sliding seat (21), and a spring for pushing the guide rod is provided in the sliding hole.

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