A hand-held near infrared spectrometer

Abstract

The utility model discloses a handheld near infrared spectrometer, including near infrared spectrometer body, the bottom surface symmetry of near infrared spectrometer body is installed with two rectangular blocks, and the lateral surface of two rectangular blocks opposite all is seted up with recess, and the inner chamber of one recess is hinged with the handle through the pin shaft, and the inner chamber of two rectangular blocks all is seted up with the empty slot, and the inner side wall of two empty slots all is rotatably connected with the two -way screw rod through the pivot, and the peripheral side of two two -way screw rods all is screwed and is equipped with two moving blocks, and the lateral surface opposite of every two moving blocks all is installed with the clamping block, and the both sides of handle all symmetry is seted up with two and the clamping block adaptation's clamping groove, and every two clamping grooves are seted up between up and down, and the lateral surface symmetry of near infrared spectrometer body at the detection head is installed with two connecting blocks. The handheld near infrared spectrometer has solved the problem that handle can not be folded and stored, and has reduced the influence to near infrared spectrometer portability.

Description

Technical Field

[0001] This utility model belongs to the field of infrared spectrometer technology, and in particular to a handheld near-infrared spectrometer. Background Technology

[0002] A spectrometer, also known as a spectrometer, is widely recognized as a direct-reading spectrometer. It is a device that uses photodetectors such as photomultiplier tubes to measure the intensity of spectral lines at different wavelengths. However, the handles of most handheld near-infrared spectrometers now adopt an integrated fixed structure, which makes it impossible to fold and store the handle according to needs. This increases the overall size of the device and makes it difficult to fit into conventional small portable backpacks, laboratory drawers, or field testing toolboxes, thus affecting the portability of handheld near-infrared spectrometers.

[0003] A Chinese patent (authorization announcement number CN222419986U) discloses a handheld spectrometer for material composition detection, which "comprising: a spectrometer body, two fixing plates fixedly installed on the left and right sides of the spectrometer body, a solar panel fixedly installed on one side of the fixing plate, a solar sub-plate movably connected inside the fixing plate, and a handle fixedly installed in the middle of the bottom of the solar sub-plate." It is evident that the cited patent document has the problem of not being able to fold and store my father according to his needs. Utility Model Content

[0004] The purpose of this invention is to provide a handheld near-infrared spectrometer to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a handheld near-infrared spectrometer, comprising a near-infrared spectrometer body, two rectangular blocks symmetrically mounted on the bottom surface of the near-infrared spectrometer body, each of the two rectangular blocks having a groove on one of their opposite sides, a handle hinged to the inner cavity of one of the grooves via a pin, and slots formed in the inner cavities of the two rectangular blocks, with bidirectional threaded rods rotatably connected to the inner walls of the two slots via a pivot, two moving blocks threaded around the periphery of each of the two bidirectional threaded rods, and a locking block mounted on one of the opposite sides of each pair of moving blocks, and two locking slots symmetrically formed on both sides of the handle to fit the locking blocks, with each pair of locking slots arranged vertically.

[0006] Preferably, the near-infrared spectrometer body has two connecting blocks symmetrically mounted on one side of the detection head, and a rotating rod is rotatably connected between the two connecting blocks.

[0007] Preferably, a rotating block is fixedly sleeved around the circumference of the rotating rod, and a protective cover for covering the detection head of the near-infrared spectrometer body is installed on the top surface of the rotating block.

[0008] Preferably, a mounting block is installed on one side of the near-infrared spectrometer body and above the protective cover, and a limiting groove is formed on one side and the bottom of the mounting block.

[0009] Preferably, a limiting block adapted to the limiting groove is installed on the side of the protective cover away from the rotating block, and through grooves are opened on both inner walls of the limiting groove.

[0010] Preferably, the inner walls of the two through slots are each connected to two springs, and the free ends of each pair of springs are connected to a locking block.

[0011] Preferably, both sides of the limiting block are provided with engaging grooves that fit with the engaging block, and one side of each of the two engaging blocks is connected with a pull rope.

[0012] Compared with the prior art, the technical effects and advantages of this utility model are as follows: This handheld near-infrared spectrometer uses a structure of rectangular block hinges and bidirectional threaded rods to drive the locking block, enabling the switch between vertical use and close-fitting storage of the handle. Compared to existing devices that use an integrated handle fixed structure, this device can fold the handle for storage, reducing the overall size of the device and making it easy to fit into a small backpack, testing toolbox, etc.

[0013] The dual locking mechanism of the flip-up protective cover and locking block ensures the protection of the detection head, preventing contamination from impacts, dust, and fingerprints. Attached Figure Description

[0014] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the rectangular block and grip of this utility model; Figure 3 This is a cross-sectional view of the rectangular block of this utility model; Figure 4 For the present utility model Figure 1 Enlarged schematic diagram of the structure at point A; Figure 5 This is a front sectional view of the mounting block of this utility model.

[0016] Explanation of reference numerals in the attached figures: In the diagram: 1. Near-infrared spectrometer body; 2. Rectangular block; 3. Groove; 4. Handle; 5. Hollow slot; 6. Bidirectional threaded rod; 7. Moving block; 8. Locking block; 9. Locking slot; 10. Connecting block; 11. Rotating rod; 12. Rotating block; 13. Protective cover; 14. Mounting block; 15. Limiting slot; 16. Limiting block; 17. Through slot; 18. Spring; 19. Engaging block; 20. Engaging slot; 21. Pull rope; 22. Round rod; 23. Round slot. Detailed Implementation

[0017] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.

[0018] Unless otherwise defined, the directions mentioned herein, such as up, down, left, right, front, back, inside, and outside, are based on the directions shown in the figures of this utility model, and are explained here together.

[0019] The connection method can be any existing method, such as bonding, welding, or bolting, depending on the actual needs.

[0020] like Figures 1 to 5 The handheld near-infrared spectrometer shown includes a near-infrared spectrometer body 1, which is an existing model of the supnir-1000 series. Its core components are formed by an optical system (near-infrared light source module, grating monochromator, entrance slit, optical lens group), a detection system (InGaAs detector, cooling module, shutter module), and a circuit system (main control circuit board, power management module, data transmission interface).

[0021] Two rectangular blocks 2 are symmetrically mounted on the bottom surface of the near-infrared spectrometer body 1. A groove 3 is provided on the opposite side of each of the two rectangular blocks 2. A handle 4 is hinged to the inner cavity of one of the grooves 3 by a pin, so that the handle 4 can rotate with the hinge point with the groove 3 as the origin, so that the handle 4 can change from a vertical state to a horizontal state. The end of the horizontal handle 4 will be in the inner cavity of the other groove 3.

[0022] Both rectangular blocks 2 have slots 5 inside their cavities. The inner walls of both slots 5 are rotatably connected to bidirectional threaded rods 6 via pivots. Each bidirectional threaded rod 6 passes through one side of a rectangular block 2 and is connected to a knob. Two movable blocks 7 are threaded onto the periphery of each of the two bidirectional threaded rods 6. A locking block 8 is installed on the opposite side of each pair of movable blocks 7. Two locking slots 9, adapted to the locking blocks 8, are symmetrically provided on both sides of the handle 4. Each pair of locking slots 9 is positioned vertically, so that each pair of locking slots 9 is located on one side of each end of the handle 4. Initially, the handle 4 is folded up and located inside the two recesses 3. When the user needs to use the near-infrared spectrometer body 1, one of the knobs is rotated, causing one of the bidirectional threaded rods 6 to rotate. This causes the bidirectional threaded rod 6 to move the two movable blocks 7 in opposite directions, thereby moving the two locking blocks 8 and allowing them to move out of the two locking slots 9, thus removing the locking block from the handle 4. With the part fixed, the handle 4 is then turned. Since the handle 4 is hinged to one of the grooves 3 via a pin, when the person turns the handle 4, the handle 4 can rotate around the hinge point with the groove 3 as the origin, so that the handle 4 can change from a horizontal state to a vertical state. After it is in the vertical state, the other two slots 9 of the handle 4 are aligned with the other two locking blocks 8. At this time, turning another knob will drive another bidirectional threaded rod 6 to rotate, which will drive the other two moving blocks 7 and locking blocks 8 to move. The other two locking blocks 8 move in opposite directions, so that the other two locking blocks 8 can engage into the other two slots 9 of the handle 4, fixing the vertical state of the handle 4. At this time, the person can hold the handle 4 to move the near-infrared spectrometer body 1, which makes it convenient for the person to fold and store the handle 4, avoiding the problem that the handle 4 cannot be folded and stored as needed, thus increasing the overall size of the equipment and reducing the impact on the portability of the handheld near-infrared spectrometer.

[0023] The grip 4 features an ergonomic curved design, which is slightly thicker in the middle and slightly thinner at both ends, conforming to the natural curve of the palm. The surface of the grip 4 is also covered with a silicone anti-slip sleeve with vertical texture to prevent slipping during testing.

[0024] The double-threaded rod 6 is made of 304 stainless steel and the thread is a fine-pitch trapezoidal thread. The helix angle of the fine-pitch thread is small, which is much smaller than the equivalent friction angle of common material combinations, and fully meets the self-locking conditions.

[0025] A horizontal plate is installed on the inner sidewall of each of the two grooves 3. Each pair of movable blocks 7 is slidably sleeved on the periphery of the horizontal plate, which can limit the movement of the movable blocks 7 and prevent deviation.

[0026] A stop block is installed on the top surface of the rectangular block 2 that is hinged to the handle 4, so that when the handle 4 is in a vertical state, one side of the handle 4 will abut against the stop block, so that the stop block limits the position of the handle 4, ensuring that the handle 4 is in a vertical state, and also ensuring that the other two slots 9 and the other two blocks 8 are aligned.

[0027] Two connecting blocks 10 are symmetrically installed on one side of the near-infrared spectrometer body 1, and a rotating rod 11 is rotatably connected between the two connecting blocks 10. A rotating block 12 is fixedly sleeved on the circumference of the rotating rod 11. A protective cover 13 for covering the detection head of the near-infrared spectrometer body 1 is installed on the top surface of the rotating block 12. In the initial state, the protective cover 13 will cover the detection head to protect it. If the detection head is needed, the protective cover 13 can be turned so that the protective cover 13 can drive the rotating block 12 to rotate around the rotating rod 11, that is, rotate with the rotating rod 11 as the axis, thereby exposing the detection head for operation.

[0028] A mounting block 14 is installed on one side of the near-infrared spectrometer body 1, above the protective cover 13. Limiting grooves 15 are formed on one side and the bottom of the mounting block 14. A limiting block 16, adapted to the limiting groove 15, is installed on the side of the protective cover 13 away from the rotating block 12. Through grooves 17 are formed on the inner walls of both sides of the limiting groove 15. Two springs 18 are connected to the inner walls of each of the two through grooves 17. A locking block 19 is connected to the free ends of each pair of springs 18. The locking block 19 has locking mechanisms on both sides of its sides. Block 19 fits into the matching locking groove 20. Each of the two locking blocks 19 has a pull rope 21 connected to one side. The free ends of both pull ropes 21 are connected to round rods 22. The inner top surfaces of both through grooves 17 have round slots 23 for the round rods 22 to pass through. The ends of the two round rods 22 passing through the round slots 23 are connected to a pull plate. Initially, the locking blocks 19 are positioned within the locking groove 20, fixing the protective cover 13 and protecting the detection head. When the detection head is needed, the pull plate is pulled upwards. The two rods 22 can pull the two ropes 21 to move the device, allowing the two ropes 21 to pull the locking blocks 19 to move, and the locking blocks 19 to compress the spring 18. The spring 18 will deform under compression, buffering the force and achieving a damping effect. When the two ropes 21 pull the locking blocks 19, the two locking blocks 19 will move out of the inner cavity of the locking groove 20, thus releasing the fixation of the limiting block 16. At this time, the protective cover 13 can be pulled, allowing the protective cover 13 to rotate. Rotate around axis 11 to expose the detection head for operation. After operation, push the protective cover 13 in the opposite direction to cover the detection head and allow the limiting block 16 to enter the limiting groove 15, so that the positions of the locking block 19 and the locking groove 20 can be aligned. Then release the pull plate, and the spring 18 will return the locking block 19 to its original position, so that the locking block 19 can be locked into the locking groove 20, fixing the position of the limiting block 16, thereby fixing the position of the protective cover 13.

[0029] A silicone sealing ring is added to the inner edge of the protective cover 13, which completely fits the plane around the detection head when closed, isolating dust and moisture.

[0030] Pulling the pull plate moves the two pull ropes 21 via the two round rods 22. The round rods 22 move within the cavity of the round groove 23, which limits the stretching of the two pull ropes 21 and prevents the pull plate from deviating. Limiting rollers are installed on the inner walls of the two through grooves 17. The two pull ropes 21 pass under the limiting rollers, allowing them to be at right angles. This ensures that when the pull plate pulls the pull ropes 21 via the round rods 22, the pull ropes 21 can pull the locking block 19 laterally. Sliding rods are installed on the inner walls of the two through grooves 17. The locking block 19 slides around the sliding rods, which limits the movement of the locking block 19 and prevents deviation.

[0031] Working principle: In its initial state, the handle 4 of this handheld near-infrared spectrometer is folded up and located within the two recesses 3. When the user needs to use the spectrometer body 1, they first turn one of the knobs, causing one of the bidirectional threaded rods 6 to rotate. This causes the bidirectional threaded rod 6 to move two moving blocks 7 in opposite directions, thereby moving two locking blocks 8. The two locking blocks 8 can then be disengaged from the two locking slots 9, thus releasing the fixation on the end of the handle 4. At this point, when the user bends the handle 4, since it is hinged to one of the recesses 3 via a pin, the handle 4 can rotate around the hinge point with respect to the recess 3. This allows the handle 4 to change from a horizontal to a vertical position. At this point, turning another knob rotates another bidirectional threaded rod 6, which in turn moves the other two moving blocks 7 and locking blocks 8. The other two locking blocks 8 move in opposite directions, allowing them to engage with the other two locking slots 9 of the handle 4, thus fixing the handle 4 in a vertical position. At this point, the user can hold the handle 4 to move the near-infrared spectrometer body 1, which also facilitates the folding and storage of the handle 4. This avoids the problem of the handle 4 not being able to be folded and stored as needed, thus increasing the overall size of the device and reducing the impact on the portability of the handheld near-infrared spectrometer.

[0032] It should be noted that, in this document, relational terms such as "one" and "two" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A handheld near-infrared spectrometer, comprising a near-infrared spectrometer body (1), characterized in that: Two rectangular blocks (2) are symmetrically installed on the bottom surface of the near-infrared spectrometer body (1). A groove (3) is provided on the opposite side of the two rectangular blocks (2). A handle (4) is hinged to the inner cavity of one of the grooves (3) by a pin. A slot (5) is provided in the inner cavity of the two rectangular blocks (2). A bidirectional threaded rod (6) is rotatably connected to the inner side wall of the two slots (5) by a rotating shaft. Two moving blocks (7) are threaded on the periphery of the two bidirectional threaded rods (6). A locking block (8) is installed on the opposite side of each pair of moving blocks (7). Two slots (9) that are adapted to the locking blocks (8) are symmetrically opened on both sides of the handle (4). The slots (9) are arranged vertically between each pair of slots (9).

2. The handheld near-infrared spectrometer according to claim 1, characterized in that: The near-infrared spectrometer body (1) has two connecting blocks (10) symmetrically installed on one side of the detection head, and a rotating rod (11) is rotatably connected between the two connecting blocks (10).

3. A handheld near-infrared spectrometer according to claim 2, characterized in that: A rotating block (12) is fixedly sleeved on the periphery of the rotating rod (11), and a protective cover (13) for covering the detection head of the near-infrared spectrometer body (1) is installed on the top surface of the rotating block (12).

4. A handheld near-infrared spectrometer according to claim 3, characterized in that: A mounting block (14) is installed on one side of the near-infrared spectrometer body (1) and above the protective cover (13). A limiting groove (15) is provided on one side and the bottom of the mounting block (14).

5. A handheld near-infrared spectrometer according to claim 4, characterized in that: The protective cover (13) is equipped with a limiting block (16) that is compatible with the limiting groove (15) on one side away from the rotating block (12), and the inner walls on both sides of the limiting groove (15) are provided with through grooves (17).

6. A handheld near-infrared spectrometer according to claim 5, characterized in that: Two springs (18) are connected to the inner walls of the two through slots (17), and the free ends of each pair of springs (18) are connected to a locking block (19).

7. A handheld near-infrared spectrometer according to claim 6, characterized in that: Both sides of the limiting block (16) are provided with engaging grooves (20) that fit with the engaging block (19), and one side of each of the two engaging blocks (19) is connected with a pull rope (21).

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