A spectrophotometer facilitating sample fixation

Abstract

The utility model discloses a kind of spectrophotometer of sample fixed for the convenience of in the technical field of photometer, including photometer body, the side of photometer body is provided with detector, the side of photometer body is fixedly connected with mounting seat, the inside of mounting seat is rotatably connected with telescopic link, one end of telescopic link is fixedly connected with connecting seat, the inside of connecting seat is rotatably connected with connecting plate, the side of connecting plate is fixedly connected with connecting rod, one end of connecting rod is fixedly connected with mounting bracket, this spectrophotometer of sample fixed for the convenience of, structure design is reasonable, can easily cope with different size (from small particle to larger block) detection object, without replacing special fixed accessory;And position adjustment and clamping operation step are clear, operating personnel can be adjusted according to sample actual situation quickly, reduce the operation complexity, improve the preparation efficiency before detection.

Description

Technical Field

[0001] This utility model relates to the field of photometer technology, specifically a spectrophotometer that facilitates sample fixation. Background Technology

[0002] A spectrophotometer is a precision analytical instrument based on Beer-Lambert's law, which analyzes the composition, concentration, and optical properties of substances by measuring their absorption or transmission of light at specific wavelengths. Its core working principle is as follows: composite light emitted from a light source is dispersed into monochromatic light of a single wavelength by a monochromator, then illuminates a cuvette containing the sample. Part of the light is absorbed by the sample, while the remaining light is received by a detector and converted into an electrical signal. This signal is then processed by a data system to output parameters such as absorbance and transmittance. The absorbance is linearly related to the sample concentration, thus enabling quantitative analysis of the substance.

[0003] Most existing spectrophotometers use a flat contact plate as the core fixing structure for the tested objects. This fixing mode can only be adapted to tested objects with flat surfaces and regular shapes. When dealing with objects with irregular structures, such as parts with protrusions, depressions, or curvatures on the surface, or samples with irregular and asymmetrical geometric shapes, the flat contact plate cannot form a comprehensive and uniform contact support. It is difficult to effectively limit and stably fix irregular objects. Therefore, we propose a spectrophotometer that facilitates sample fixing. Summary of the Invention

[0004] The purpose of this invention is to provide a spectrophotometer that facilitates sample fixation, thereby solving the problem mentioned in the background art that the planar contact plate of existing spectrophotometers cannot form a comprehensive and uniform contact support, making it difficult to effectively limit and stably fix irregularly shaped objects.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a spectrophotometer for easy sample fixation, comprising a spectrophotometer body, a detector disposed on one side of the spectrophotometer body, a mounting base fixedly connected to one side of the spectrophotometer body, a telescopic rod rotatably connected to the inner side of the mounting base, a connecting seat fixedly connected to one end of the telescopic rod, a connecting plate rotatably connected to the inner side of the connecting seat, a connecting rod fixedly connected to one side of the connecting plate, and a mounting bracket fixedly connected to one end of the connecting rod.

[0006] As a further description of the above technical solution: A drive gear is fixedly connected to the top of the inner sidewall of the mounting bracket, and an extension rod is fixedly connected to the top of the drive gear.

[0007] As a further description of the above technical solution: The top end of the extension rod passes through the mounting bracket and extends to the top of the mounting bracket. An embedding groove is provided on the outer side of the extension rod, and the embedding grooves are arranged sequentially from top to bottom. Two driven gears are rotatably connected to the top of the inner sidewall of the mounting bracket.

[0008] As a further description of the above technical solution: The two driven gears are meshed with the drive gear. A positioning plate is fixedly connected to the bottom of the driven gear. An anti-slip pad is adhered to one side of the positioning plate. A fixing bracket is fixedly connected to the top of the mounting bracket.

[0009] As a further description of the above technical solution: A bidirectional screw is rotatably connected to the inner side of the fixing frame, and one end of the bidirectional screw passes through the fixing frame and extends to the outer side of the fixing frame.

[0010] As a further description of the above technical solution: Two V-shaped locking blocks are screwed to the outer side of the bidirectional screw, and an embedded gasket is glued to the inner side of the V-shaped locking block. The embedded gasket abuts against the embedded groove.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. This spectrophotometer, designed for easy sample fixation, utilizes a mounting base on the spectrophotometer body for initial position adjustment. The core adjustment component is a telescopic rod rotatably connected to the inner side of the mounting base. Operators can extend and retract the telescopic rod to change the overall distance between the connecting base, connecting plate, and subsequent mounting frame, adapting to different sized objects. Simultaneously, the telescopic rod and connecting plate can rotate around the inner side of the mounting base, allowing for horizontal and vertical angle adjustments to the mounting frame. This ensures the positioning plate aligns with the object to be clamped, facilitating synchronous clamping. Once the position is adjusted, rotating the extension rod drives a drive gear on the top of the inner wall of the mounting frame. Because the drive gear meshes with two driven gears, its rotation synchronously drives the two driven gears to rotate in opposite directions. The positioning plate fixedly connected to the bottom of the driven gear rotates synchronously with the driven gear. The two positioning plates will move towards the object in a symmetrical manner until the anti-slip pad on one side of the positioning plate is in close contact with the surface of the object. The anti-slip pad can increase friction and prevent the object from sliding during the clamping process, thus achieving a stable clamping of regular or irregularly shaped objects.

[0012] This spectrophotometer, designed for easy sample fixation, allows the operator to extend the bidirectional screw to one end of the mounting bracket. Because the bidirectional screw is screwed to two V-shaped locking blocks, and the screw's thread is bidirectional, rotation of the screw causes the two V-shaped locking blocks to move in opposite directions along the inner side of the mounting bracket. As the V-shaped locking blocks approach the extension rod, the embedded pads bonded to their inner sides gradually align with the embedded grooves on the outer side of the extension rod, eventually fully abutting the grooves. This mating structure restricts the rotation and axial movement of the extension rod, thereby locking the position of the drive gear and ensuring a stable clamping state between the driven gear and the positioning plate, preventing loosening of the clamping force and unlocking the operating logic. If it is necessary to adjust the clamping position or remove the object, rotating the bidirectional screw in the opposite direction causes the two V-shaped locking blocks to move in the opposite direction along the screw, disengaging the embedded pads from the grooves, restoring the extension rod's rotational freedom, and allowing the drive gear to rotate again to adjust the position of the positioning plate. Attached Figure Description

[0013] Figure 1 This is a front-view stereoscopic structural diagram of a spectrophotometer that facilitates sample fixation, as proposed in this utility model. Figure 2 This is a schematic diagram of the structure of a spectrophotometer with a changed angle for easy sample fixation, as proposed in this utility model. Figure 3 This is a schematic diagram of the locking structure of a locking mechanism for a spectrophotometer that facilitates sample fixation, as proposed in this utility model. Figure 4 This is a schematic diagram of the unlocking structure of the locking mechanism of a spectrophotometer that facilitates sample fixation, as proposed in this utility model. In the diagram: 1. Photometer body; 101. Detector; 2. Mounting base; 201. Telescopic rod; 202. Connecting base; 3. Connecting plate; 301. Connecting rod; 4. Mounting bracket; 401. Drive gear; 402. Extension rod; 403. Embedded slot; 5. Driven gear; 501. Positioning plate; 502. Anti-slip pad; 6. Fixing bracket; 601. Double-acting screw; 7. V-shaped locking block; 701. Embedded gasket. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0016] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0017] This invention provides a spectrophotometer that facilitates sample fixation, easily handling test objects of different sizes without requiring the replacement of specialized fixing accessories. Furthermore, the position adjustment and clamping operation steps are clearly defined, allowing operators to quickly adjust according to the actual sample conditions, reducing operational complexity and improving pre-test preparation efficiency. (See also: [link to relevant documentation]) Figure 1-4 It includes the photometer body 1 and the mounting base 2; Please refer to it again. Figure 1-4A detector 101 is installed on one side of the photometer body 1. A mounting base 2 is fixedly connected to one side of the photometer body 1. A telescopic rod 201 is rotatably connected to the inner side of the mounting base 2. A connecting seat 202 is fixedly connected to one end of the telescopic rod 201. A connecting plate 3 is rotatably connected to the inner side of the connecting seat 202. A connecting rod 301 is fixedly connected to one side of the connecting plate 3. A mounting bracket 4 is fixedly connected to one end of the connecting rod 301. A drive gear 401 is fixedly connected to the top of the inner wall of the mounting bracket 4. An extension rod 402 is fixedly connected to the top of 401. The top end of the extension rod 402 passes through the mounting bracket 4 and extends to the top of the mounting bracket 4. An embedding groove 403 is provided on the outer side of the extension rod 402. The embedding grooves 403 are arranged sequentially from top to bottom. Two driven gears 5 are rotatably connected to the top of the inner side wall of the mounting bracket 4. The two driven gears 5 mesh with the drive gear 401. A positioning plate 501 is fixedly connected to the bottom of the driven gears 5. An anti-slip pad 502 is glued to one side of the positioning plate 501.

[0018] In the pre-position adjustment stage, the mechanism relies on the mounting base 2 of the photometer body 1 for basic fixation. The telescopic rod 201, which is rotatably connected to the inner side of the mounting base 2, is the core adjustment component. The operator can stretch and retract the telescopic rod 201 to change the overall distance between the connecting base 202, the connecting plate 3, and the subsequent mounting frame 4, adapting to different sizes of objects to be tested. At the same time, the telescopic rod 201 can rotate around the inner side of the mounting base 2, and the connecting plate 3 can rotate around the inner side of the connecting base 202. The two work together to adjust the angle of the mounting frame 4 in the horizontal and vertical directions, ensuring that the positioning plate 501 can be aligned with the object to be clamped. In the synchronous clamping execution stage, when the position is adjusted to the correct position, the drive gear 401 on the top of the inner wall of the mounting frame 4 is driven by rotating the extension rod 402. Since the drive gear 401 is meshed with two driven gears 5, the rotation of the drive gear 401 will synchronously drive the two driven gears 5 to rotate in the opposite direction. The positioning plate 501, which is fixedly connected to the bottom of the driven gear 5, rotates synchronously with the driven gear 5. The two positioning plates 501 will move towards the object in a symmetrical manner until the anti-slip pad 502 on one side of the positioning plate 501 is in close contact with the surface of the object. The anti-slip pad 502 can increase the friction and prevent the object from sliding during the clamping process, thus achieving a stable clamping of regular or irregularly shaped objects.

[0019] Please refer to it again. Figure 1-4 The top of the mounting bracket 4 is fixedly connected to the mounting bracket 6. The inner side of the mounting bracket 6 is rotatably connected to the bidirectional screw 601. One end of the bidirectional screw 601 passes through the mounting bracket 6 and extends to the outer side of the mounting bracket 6. Two V-shaped locking blocks 7 are screwed to the outer side of the bidirectional screw 601. An embedded gasket 701 is glued to the inner side of the V-shaped locking block 7. The embedded gasket 701 abuts against the embedded groove 403.

[0020] The locking mechanism is prepared by a locking mechanism consisting of a fixed frame 6, a bidirectional screw 601, and two V-shaped locking blocks 7. The fixed frame 6 is fixed to the top of the mounting frame 4, providing support for the locking structure. After the variable positioning plate clamping mechanism completes the clamping action and the drive gear 401 stops rotating, the position of the drive gear 401 needs to be fixed by the locking mechanism. At this time, the extension rod 402 fixed to the top of the drive gear 401 is in a stationary state. The insertion grooves 403 arranged from top to bottom on the outer side of the extension rod provide a limiting point for locking. The bidirectional transmission and locking are achieved by the operator rotating the bidirectional screw 601 to one end of the fixed frame 6. Because the bidirectional screw 601 is screwed to the two V-shaped locking blocks 7, and the threads of the bidirectional screw 601 are designed in both directions (the threads on the left and right sides turn in opposite directions), the rotation of the bidirectional screw 601 will drive the two V-shaped locking blocks 7 to move in opposite directions along the inner side of the fixed frame 6. As the V-shaped locking block 7 approaches the extension rod 402, the embedded pad 701 bonded to its inner side gradually aligns with the embedded groove 403 on the outer side of the extension rod 402, until the embedded pad 701 completely abuts against the inside of the embedded groove 403. The engagement structure of the embedded pad 701 and the embedded groove 403 restricts the rotation and axial movement of the extension rod 402, thereby locking the position of the drive gear 401, ensuring that the driven gear 5 and the positioning plate 501 maintain a stable clamping state, preventing the clamping force from loosening, and unlocking the operation logic. If it is necessary to adjust the clamping position or remove the object, the bidirectional screw 601 is rotated in the opposite direction, and the two V-shaped locking blocks 7 will move in the opposite direction along the bidirectional screw 601. The embedded pad 701 disengages from the embedded groove 403, the extension rod 402 regains its rotational freedom, and the drive gear 401 can rotate again to adjust the position of the positioning plate 501.

[0021] In practical use, the device in this technical field is based on the photometer body 1. The operator first uses the telescopic rod 201 rotatably connected inside the mounting base 2 to adjust the relative distance between the connecting base 202, the connecting plate 3, and the mounting frame 4 and the photometer body 1 (including the detector 101) by stretching and contracting. Combined with the rotation of the telescopic rod 201 around the mounting base 2 and the connecting plate 3 around the connecting base 202, the angle of the mounting frame 4 is adjusted so that the positioning plate 501 is aligned with the object clamping point. After the position is adjusted, the extension rod 402 fixed to the drive gear 401 inside the mounting frame 4 is driven to rotate the drive gear 401. Because the drive gear 401 meshes with two driven gears 5, they will rotate synchronously. Drive the driven gear 5 to rotate in the opposite direction, causing the positioning plate 501 at the bottom of the driven gear 5 to symmetrically approach the object until the anti-slip pad 502 is tightly attached to the object to achieve a stable clamping. Then, rotate the double-ended screw 601 on the outside of the fixing frame 6, using its double-ended thread to drive the two V-shaped locking blocks 7 to move towards each other, so that the embedded pad 701 on the inner side of the V-shaped locking block 7 is embedded in the embedded groove 403 of the extension rod 402, locking the position of the drive gear 401 to prevent the clamping from loosening. After the inspection is completed, rotate the double-ended screw 601 in the opposite direction to make the embedded pad 701 disengage from the embedded groove 403, and then drive the extension rod 402 in the opposite direction to separate the positioning plate 501 and remove the object. If a new object needs to be inspected, repeat the above process.

[0022] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0023] Although embodiments of the present invention have been shown and described, those skilled in the art will understand 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 claims and their equivalents.

Claims

1. A spectrophotometer for easy sample fixation, comprising a spectrophotometer body (1), characterized in that: A detector (101) is provided on one side of the photometer body (1). A mounting base (2) is fixedly connected to one side of the photometer body (1). A telescopic rod (201) is rotatably connected to the inner side of the mounting base (2). A connecting seat (202) is fixedly connected to one end of the telescopic rod (201). A connecting plate (3) is rotatably connected to the inner side of the connecting seat (202). A connecting rod (301) is fixedly connected to one side of the connecting plate (3). A mounting bracket (4) is fixedly connected to one end of the connecting rod (301).

2. The spectrophotometer for easy sample fixation according to claim 1, characterized in that: A drive gear (401) is fixedly connected to the top of the inner side wall of the mounting bracket (4), and an extension rod (402) is fixedly connected to the top of the drive gear (401).

3. A spectrophotometer for easy sample fixation according to claim 2, characterized in that: The top end of the extension rod (402) passes through the mounting bracket (4) and extends to the top of the mounting bracket (4). An embedding groove (403) is provided on the outer side of the extension rod (402), and the embedding grooves (403) are arranged sequentially from top to bottom. Two driven gears (5) are rotatably connected to the top of the inner sidewall of the mounting bracket (4).

4. A spectrophotometer for easy sample fixation according to claim 3, characterized in that: The two driven gears (5) are meshed with the drive gear (401). A positioning plate (501) is fixedly connected to the bottom of the driven gear (5). An anti-slip pad (502) is glued to one side of the positioning plate (501). A fixing bracket (6) is fixedly connected to the top of the mounting bracket (4).

5. A spectrophotometer for easy sample fixation according to claim 4, characterized in that: The inner side of the fixing frame (6) is rotatably connected to a bidirectional screw (601), one end of which passes through the fixing frame (6) and extends to the outer side of the fixing frame (6).

6. A spectrophotometer for easy sample fixation according to claim 5, characterized in that: Two V-shaped locking blocks (7) are screwed to the outer side of the bidirectional screw (601), and an embedded gasket (701) is bonded to the inner side of the V-shaped locking block (7), and the embedded gasket (701) abuts against the embedded groove (403).

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