Spectrometer for inflammable object detection

Abstract

The utility model provides a spectrograph for inflammable object detection, which comprises a spectrograph body, one end of the interior of the spectrograph body is provided with a cavity, the inner surface of the cavity is fixedly connected with a motor, the output end of the motor is fixedly connected with a reflective mirror, and the reflective mirror and the rotation axis of the motor are arranged at a certain angle. A lens cone is fixedly connected to one side of the outer surface of the spectrometer body, a focusing lens is slidably connected to the inner surface of the lens cone, and a fixing ring is fixedly connected to the inner surface of the lens cone. Because the reflective mirror and the rotation axis of the motor are arranged at a certain angle, the angle between the reflective mirror and the laser emitted by the spectrograph body is continuously changed in the rotation process, a light spot formed through the focusing lens is also continuously changed, and the ideal state is that the light spot does circular motion around the axis of the focusing lens, so that the position of a focus on the surface of an object is continuously changed; therefore, the temperature of the detected substance is controlled, and the detection process is safer.

Description

Technical Field

[0001] The utility model relates to the technical field of spectrometers, and more specifically, to a spectrometer for detecting flammable items. Background Art

[0002] A Raman spectrometer is an analytical instrument used to study the composition and molecular structure of substances. It measures the inelastic scattered light generated when substances are irradiated by light, analyzes the relationship between the energy level difference between the scattered light and the incident light and the vibration frequency and rotation frequency of compounds, so as to obtain the molecular vibration and rotation information of substances. The Raman spectrometer has the characteristics of simple structure, easy operation, fast, efficient and accurate measurement, and is especially suitable for micro-area detection and microscopic image measurement of the sample surface.

[0003] When the existing Raman spectrometer works, the laser will continuously irradiate a certain point on the item to be detected, which is not a problem under normal circumstances. However, when the item to be detected is highly sensitive to temperature, flammable or explosive, the detection process will be very dangerous.

[0004] Therefore, we make improvements in this regard and propose a spectrometer for detecting flammable items. Content of the Utility Model

[0005] The purpose of the utility model is to solve the problem that when the item to be detected is highly sensitive to temperature, flammable or explosive, the detection process will be very dangerous.

[0006] In order to achieve the above-mentioned invention purpose, the utility model provides the following technical solutions:

[0007] A spectrometer for detecting flammable items to improve the above problems.

[0008] Specifically, this application is as follows:

[0009] It includes a spectrometer body. One end inside the spectrometer body is provided with a cavity. The inner surface of the cavity is fixedly connected with a motor. The output end of the motor is fixedly connected with a reflecting mirror. The reflecting mirror is arranged at a certain angle with the rotation axis of the motor. One side of the outer surface of the spectrometer body is fixedly connected with a lens barrel. The inner surface of the lens barrel is slidably connected with a focusing lens. The inner surface of the lens barrel is fixedly connected with a fixing ring.

[0010] Because the reflecting mirror is arranged at a certain angle with the rotation axis of the motor, the angle between the reflecting mirror and the laser emitted from the spectrometer body continuously changes during rotation. The light spot formed by the focusing lens also continuously changes. The ideal state is that the light spot makes a circular motion around the axis of the focusing lens, so as to continuously change the position of the focus on the surface of the item, thereby controlling the temperature of the substance to be detected and making the detection process safer.

[0011] As a preferred embodiment of the spectrometer for flammable item detection provided by the present utility model, one side of the focusing lens is attached to the lens barrel, and the other side of the lens barrel is attached to the fixing ring.

[0012] As a preferred embodiment of the spectrometer for flammable item detection provided by the present utility model, the focusing lens is disposed at a ninety-degree angle to the laser emitted from the interior of the spectrometer body.

[0013] As a preferred embodiment of the spectrometer for flammable item detection provided by the present utility model, a reinforcement plate is attached to the upper surface of the motor. Two mounting holes I are provided on the outer surface of the reinforcement plate. A protective plate is attached to the upper surface of the reinforcement plate. Two mounting holes II are provided on the outer surface of the protective plate.

[0014] As a preferred embodiment of the spectrometer for flammable item detection provided by the present utility model, both the reinforcement plate and the protective plate are fixedly connected to the spectrometer body by bolts.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] Since the reflecting mirror is disposed at a certain angle to the rotation axis of the motor, the angle between the reflecting mirror and the laser emitted from the spectrometer body continuously changes during rotation. The light spot formed by the focusing lens also continuously changes. In an ideal state, the light spot makes a circular motion around the axis of the focusing lens, thereby continuously changing the position of the focus on the surface of the item, controlling the temperature of the substance to be detected, and making the detection process safer. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the spectrometer for flammable item detection provided by the present application;

[0018] Figure 2 is an upper cross-sectional structural diagram of the spectrometer body of the spectrometer for flammable item detection provided by the present application;

[0019] Figure 3 is an oblique cross-sectional structural diagram of the spectrometer body of the spectrometer for flammable item detection provided by the present application.

[0020] Reference numerals in the figures:

[0021] 1. Spectrometer body; 11. Cavity; 2. Motor; 21. Reflecting mirror; 22. Reinforcement plate; 23. Mounting hole I; 24. Protective plate; 25. Mounting hole II; 3. Lens barrel; 31. Focusing lens; 32. Fixing ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model.

[0023] Therefore, the following detailed description of the embodiments of the present utility model is not intended to limit the scope of the present utility model claimed, but merely represents some embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0024] It should be noted that, without conflict, the embodiments in the present utility model and the features and technical solutions in the embodiments may be combined with each other.

[0025] It should be noted that similar reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0026] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "upper" and "lower" is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the invention product is usually placed during use, or the orientation or positional relationship commonly understood by those skilled in the art. Such terms are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present utility model. In addition, terms such as "first" and "second" are only used for descriptive distinction and cannot be understood as indicating or implying relative importance.

[0027] As described in the background art, when the item to be detected is highly sensitive to temperature, flammable, or explosive, the detection process will be very dangerous.

[0028] To solve this technical problem, the present utility model provides a spectrometer for detecting flammable items.

[0029] Specifically, please refer to Figures 1-3 , the spectrometer for detecting flammable items specifically includes: a spectrometer body 1, a cavity 11 is provided at one end inside the spectrometer body 1, a motor 2 is fixedly connected to the inner surface of the cavity 11, a reflecting mirror 21 is fixedly connected to the output end of the motor 2, the reflecting mirror 21 is disposed at a certain angle with respect to the rotation axis of the motor 2, a lens barrel 3 is fixedly connected to one side of the outer surface of the spectrometer body 1, a focusing lens 31 is slidably connected to the inner surface of the lens barrel 3, and a fixing ring 32 is fixedly connected to the inner surface of the lens barrel 3.

[0030] Since the rearview mirror 21 is arranged at an angle to the rotation axis of the motor 2, the angle between the laser emitted from the spectrometer body 1 and the rearview mirror 21 continuously changes during the rotation of the rearview mirror 21, and the spot formed by the focusing lens 31 also continuously changes. In an ideal state, the spot moves in a circular motion around the axis of the focusing lens 31, thereby continuously changing the position of the focus on the surface of the article, controlling the temperature of the substance to be measured, and making the detection process safer.

[0031] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings.

[0032] It should be noted that, without conflict, the embodiments in the present invention and the features and technical solutions in the embodiments can be combined with each other.

[0033] It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0034] Please refer to Figures 1-3 , a spectrometer for detecting flammable items, comprising a spectrometer body 1. One end inside the spectrometer body 1 is provided with a cavity 11. The inner surface of the cavity 11 is fixedly connected with a motor 2. The output end of the motor 2 is fixedly connected with a rearview mirror 21. The rearview mirror 21 is arranged at an angle to the rotation axis of the motor 2. One side of the outer surface of the spectrometer body 1 is fixedly connected with a lens barrel 3. The inner surface of the lens barrel 3 is slidably connected with a focusing lens 31. The inner surface of the lens barrel 3 is fixedly connected with a fixing ring 32. One side of the focusing lens 31 is arranged in contact with the lens barrel 3, and the other side of the lens barrel 3 is arranged in contact with the fixing ring 32. The focusing lens 31 is arranged at a right angle to the laser emitted from the inside of the spectrometer body 1. The upper surface of the motor 2 is arranged in contact with a reinforcing plate 22. Two mounting holes 23 are opened on the outer surface of the reinforcing plate 22. The upper surface of the reinforcing plate 22 is arranged in contact with a protective plate 24. Two mounting holes 25 are opened on the outer surface of the protective plate 24. Both the reinforcing plate 22 and the protective plate 24 are fixedly connected with the spectrometer body 1 by bolts.

[0035] Implementation process: The staff picks up the spectrometer body 1 from the concave surface on the outer surface of the spectrometer body 1, aligns the lens barrel 3 with the item to be detected, the spectrometer body 1 starts to work and emits laser light towards the surface of the reflector 21. At the same time, the motor 2 starts to work and drives the reflector 21 to rotate. The laser light is projected onto the surface of the reflector 21, and then passes through the focusing lens 31 under the refraction of the reflector 21 and is projected onto the surface of the item. Since the reflector 21 is arranged at a certain angle with the rotation axis of the motor 2, the angle between the laser light emitted from the spectrometer body 1 and the reflector 21 continuously changes during the rotation of the reflector 21. The light spot formed by the focusing lens 31 also continuously changes. In an ideal state, the light spot moves in a circular motion around the axis of the focusing lens 31, so as to continuously change the position of the focus on the surface of the item.

[0036] Benefit of implementation: By continuously moving the focus position, the temperature rise of the substance to be measured is controlled.

[0037] The above embodiments are only used to illustrate the present invention and do not limit the technical solutions described in the present invention. Although this specification has described the present invention in detail with reference to the above respective embodiments, the present invention is not limited to the above specific implementation manners. Therefore, any modification or equivalent replacement to the present invention; and all technical solutions and their improvements that do not depart from the spirit and scope of the invention are covered by the scope of the claims of the present invention.

Claims

1. A spectrometer for detecting flammable articles, comprising a spectrometer body (1), characterized in that: A cavity (11) is provided at one end of the interior of the spectrometer body (1); a motor (2) is fixedly connected to the inner surface of the cavity (11); a reflector (21) is fixedly connected to the output end of the motor (2); the reflector (21) is arranged at a certain angle to the rotation axis of the motor (2); a lens barrel (3) is fixedly connected to one side of the outer surface of the spectrometer body (1); a focusing lens (31) is slidably connected to the inner surface of the lens barrel (3); and a fixing ring (32) is fixedly connected to the inner surface of the lens barrel (3).

2. The spectrometer for detecting flammable articles according to claim 1, characterized in that: One side of the focusing lens (31) is fitted with the lens barrel (3), and the other side of the lens barrel (3) is fitted with the fixing ring (32).

3. The spectrometer for detecting flammable articles according to claim 2, characterized in that: The focusing lens (31) is arranged at a 90-degree angle to the laser light emitted from the inside of the spectrometer body (1).

4. The spectrometer for detecting flammable articles according to claim 3, characterized in that: A reinforcing plate (22) is fitted on the upper surface of the motor (2), and two first mounting holes (23) are provided on the outer surface of the reinforcing plate (22). A protective plate (24) is fitted on the upper surface of the reinforcing plate (22), and two second mounting holes (25) are provided on the outer surface of the protective plate (24).

5. The spectrometer for detecting flammable articles according to claim 4, characterized in that: The reinforcement plate (22) and the protection plate (24) are both fixedly connected to the spectrometer body (1) via bolts.

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