Protection device of high-precision metamaterial magnetic field sensor

Abstract

The utility model discloses a protection device for a high-precision metamaterial magnetic field sensor, which comprises a fixing mechanism, the fixing mechanism comprises a metamaterial magnetic field sensor, the front surface of the metamaterial magnetic field sensor is fixedly connected with a fixing frame, the top of the fixing frame is fixedly connected with a supporting frame, and the supporting frame is fixedly connected with a supporting rod. A motor is fixedly connected to the surface of the supporting frame, a gear is fixedly connected to the output end of the bottom of the motor, toothed plates are engaged with the front face and the back face of the gear correspondingly, limiting plates are slidably connected to the outer sides of the toothed plates correspondingly, and sliding blocks are fixedly connected to the inner sides of the toothed plates correspondingly. The surface of the sliding block is in sliding connection with the surface of the inner wall of the fixing frame. When the cleaning device is used, under the action of the fixing mechanism and the dust cleaning mechanism, the fan filter screen of the high-precision terahertz metamaterial sensor can be cleaned, the fan filter screen is prevented from being blocked and poor heat dissipation caused by long-time use of the sensor, and the cleaning device has the advantage of automatically cleaning the sensor filter screen.

Description

Technical Field

[0001] The utility model relates to the technical field of sensors, in particular to a protection device for a high-precision metamaterial magnetic field sensor. Background Art

[0002] High-precision terahertz metamaterial sensor is a new type of sensor that uses the characteristics of metamaterials for high-precision measurement. Metamaterials are a new type of artificial synthetic material that is periodically arranged according to subwavelength dimensions. They are composed of metal or semi-metal structures that interact with incident electromagnetic waves. These materials have unique electromagnetic properties and functions, such as perfect absorption, transmission and invisibility, which do not exist in natural materials. Metamaterial resonance is highly sensitive to changes in the dielectric constant of the metal gap region. The dielectric material located in the gap will cause changes in the resonant frequency. Therefore, metamaterials are very suitable for sensing dielectric materials. High-precision terahertz metamaterial sensors use these characteristics of metamaterials for high-precision measurements. For example, through the combination of silk protein film layer, metal layer and polyethylene film layer, the sensor's sensitivity to humidity is improved. However, the measuring end of this sensor is usually exposed to the air, and the measurement accuracy is often reduced due to the measuring end of the sensor being covered by dust.

[0003] For example, the patent application number of China Patent Network is: 202310658013.7. The present invention relates to the field of sensor technology, and discloses a protective device for a high-precision metamaterial magnetic field sensor, including a sensor body, a metamaterial sheet bonded to the upper surface of the sensor body, a connecting block fixedly connected to the surface of the sensor body, a rectangular tube fixedly connected to the surface of the connecting block, an air groove is provided on the left side of the connecting block, and a first sealing plate is fixedly connected to the upper surface of the rectangular tube. The present invention prevents dust in the air from being adsorbed on the metamaterial sheet through the cooperation of the connecting block, the rectangular tube, the first sealing plate, the air inlet and the circular dustproof net, thereby preventing the sensor from being covered by dust when the metamaterial sheet is used, resulting in a reduction in measurement accuracy. At the same time, the circular dustproof net is rotated by a driving mechanism, and the dust adsorbed on the circular dustproof net is blown away by a micro fan, thereby preventing the air inside and outside the rectangular tube from being adsorbed on the circular dustproof net. The patent cannot automatically clean the filter of the external fan of the sensor, and long-term use is likely to cause it to be blocked, resulting in it being unable to be used normally.

[0004] Usually, during the use of high-precision terahertz metamaterial sensors, the fan on its surface draws air in and blows air out of the sensor, causing its external filter to be easily contaminated and accumulate dust, causing the filter to be blocked by dust, thus causing the sensor to fail to work normally.

[0005] Therefore, it is necessary to redesign the sensor to effectively prevent the fan filter from being easily blocked. Utility Model Content

[0006] In order to solve the problems raised in the above background technology, the purpose of the utility model is to provide a protection device for a high-precision metamaterial magnetic field sensor, which has the advantage of automatically cleaning the fan filter and solves the problem that the fan filter is easily blocked.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a protective device for a high-precision metamaterial magnetic field sensor, comprising: a fixing mechanism, the fixing mechanism comprising a metamaterial magnetic field sensor, the front of the metamaterial magnetic field sensor is fixedly connected to a fixing frame, the top of the fixing frame is fixedly connected to a supporting frame, the surface of the supporting frame is fixedly connected to a motor, the bottom output end of the motor is fixedly connected to a gear, the front and back of the gear are meshed with tooth plates, the outer sides of the tooth plates are slidably connected to limit plates, the inner sides of the tooth plates are fixedly connected to sliding blocks, the surfaces of the sliding blocks are slidably connected to the surfaces of the inner walls of the fixing frame, the bottom of the sliding block is fixedly connected to a scraper, the back of the scraper is provided with bristles, and the surface of the bristles contacts the surface of the metamaterial magnetic field sensor;

[0008] A dust cleaning mechanism, the dust cleaning mechanism includes an outlet fan, the surface of the outlet fan is fixedly connected to the surface of the inner wall of the fixed frame, the back of the outlet fan is movably connected to the front of the scraper, the surface of the inner wall of the fixed frame is slidably connected to a movable plate, the bottom of the fixed frame is fixedly connected to an air guide frame, and the surface of the inner wall of the air guide frame is slidably connected to a filter plate.

[0009] As a preferred embodiment of the utility model, a pulley is fixedly connected to the bottom of the scraper, and the bottom of the pulley is slidably connected to the bottom of the inner wall of the fixed frame.

[0010] As a preferred embodiment of the present invention, a pulling handle is fixedly connected to the left side of the movable plate, and the pulling handle is used in conjunction with the movable plate.

[0011] As a preferred embodiment of the utility model, a front side of the movable plate is fixedly connected to a limiting strip, and a left side of the limiting strip is movably connected to a surface of a fixed frame.

[0012] As a preferred embodiment of the present invention, the top and bottom of the filter plate are fixedly connected with magnetic plates, and the back side of the magnetic plate and the front side of the air guide frame are attracted to each other.

[0013] As a preferred embodiment of the present invention, the top of the support frame is movably connected to a protective shell, and the bottom of the protective shell is fixedly connected to the top of the fixed frame.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] 1. When the utility model is used, under the action of the fixing mechanism and the cleaning mechanism, the fan filter of the high-precision terahertz metamaterial sensor can be cleaned, thereby avoiding the clogging of the fan filter caused by long-term use of the sensor and causing poor heat dissipation, so that it has the advantage of automatically cleaning the sensor filter.

[0016] 2. The utility model can support the scraper by setting a pulley, making it smoother and more stable during movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the fixing mechanism of the utility model;

[0019] Figure 3 This is an exploded view of the structure of the utility model;

[0020] Figure 4 It is a three-dimensional diagram of some parts of the utility model;

[0021] Figure 5 For this utility model Figure 3 Enlarged view of point A in the middle.

[0022] In the figure: 1. metamaterial magnetic field sensor; 2. fixed frame; 3. support frame; 4. motor; 5. gear; 6. tooth plate; 7. limit plate; 8. sliding block; 9. scraper; 10. brush; 11. exhaust fan; 12. movable plate; 13. air guide frame; 14. filter plate; 15. pulley; 16. pull handle; 17. limit strip; 18. magnetic plate; 19. protective shell. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] like Figures 1 to 5As shown, the utility model provides a protective device for a high-precision metamaterial magnetic field sensor, comprising: a fixing mechanism, the fixing mechanism comprising a metamaterial magnetic field sensor 1, a fixing frame 2 is fixedly connected to the front of the metamaterial magnetic field sensor 1, a supporting frame 3 is fixedly connected to the top of the fixing frame 2, a motor 4 is fixedly connected to the surface of the supporting frame 3, a gear 5 is fixedly connected to the bottom output end of the motor 4, a tooth plate 6 is meshed on the front and back of the gear 5, a limit plate 7 is slidably connected to the outer side of the tooth plate 6, a sliding block 8 is fixedly connected to the inner side of the tooth plate 6, the surface of the sliding block 8 is slidably connected to the surface of the inner wall of the fixing frame 2, a scraper 9 is fixedly connected to the bottom of the sliding block 8, bristles 10 are arranged on the back of the scraper 9, and the surface of the bristles 10 contacts the surface of the metamaterial magnetic field sensor 1;

[0025] The dust cleaning mechanism includes an outlet fan 11, the surface of the outlet fan 11 is fixedly connected to the surface of the inner wall of the fixed frame 2, the back of the outlet fan 11 is movably connected to the front of the scraper 9, the surface of the inner wall of the fixed frame 2 is slidably connected with a movable plate 12, the bottom of the fixed frame 2 is fixedly connected with an air guide frame 13, and the surface of the inner wall of the air guide frame 13 is slidably connected with a filter plate 14.

[0026] refer to Figure 3 The bottom of the scraper 9 is fixedly connected with a pulley 15 , and the bottom of the pulley 15 is slidably connected with the bottom of the inner wall of the fixed frame 2 .

[0027] As a technical optimization solution of the utility model, by providing a pulley 15, the scraper 9 can be supported to make the movement of the scraper 9 smoother and more stable.

[0028] refer to Figure 1 A pulling handle 16 is fixedly connected to the left side of the movable plate 12 , and the pulling handle 16 is used in conjunction with the movable plate 12 .

[0029] As a technical optimization solution of the present invention, by providing a pulling handle 16, the movable plate 12 can be pulled, making the pulling process more convenient and quick.

[0030] refer to Figure 1 The front of the movable plate 12 is fixedly connected to a limiting strip 17 , and the left side of the limiting strip 17 is movably connected to the surface of the fixed frame 2 .

[0031] As a technical optimization solution of the present invention, by providing a limiting strip 17 , the movable plate 12 can be limited to prevent it from excessively moving and escaping from the interior of the fixed frame 2 .

[0032] refer to Figure 3 The top and bottom of the filter plate 14 are fixedly connected with a magnetic plate 18 , and the back side of the magnetic plate 18 and the front side of the air guide frame 13 are attracted to each other.

[0033] As a technical optimization solution of the present invention, by providing a magnetic plate 18, the filter plate 14 can be fixed to prevent it from being tilted or vibrated, which would cause the filter plate 14 to move autonomously.

[0034] refer to Figure 1 The top of the support frame 3 is movably connected to a protective shell 19 , and the bottom of the protective shell 19 is fixedly connected to the top of the fixed frame 2 .

[0035] As a technical optimization solution of the present invention, by providing a protective shell 19, the motor 4 can be protected to prevent it from being hit by other objects and causing damage.

[0036] The working principle and use process of the utility model are as follows: when in use, the movable door is moved to the right to close it, and then the motor 4 and the outlet fan 11 are started to rotate, so that the output end of the motor 4 drives the gear 5 to rotate, and the gear 5 drives the toothed plates 6 on both sides to slide inward at the same time inside the limit plate 7, and drives the sliding block 8 and the scraper 9 to move while sliding, so that the bristles 10 are driven by the scraper 9 to brush the filter screen of the fan on the front of the metamaterial magnetic field sensor 1, and the dust on its surface is brushed off, and the dust brushed off is sucked out by the outlet fan 11 and enters the air guide frame 13, and the dust is filtered and accumulated by the filter plate 14, and then blown out to the outside, thereby avoiding the clogging of the fan filter screen caused by the long-term use of the metamaterial magnetic field sensor 1, resulting in poor heat dissipation, and having the advantage of automatically cleaning the filter screen of the metamaterial magnetic field sensor 1.

[0037] To sum up: when the utility model is used, under the action of the fixing mechanism and the cleaning mechanism, the fan filter of the high-precision terahertz metamaterial magnetic field sensor 1 can be cleaned, thereby avoiding the clogging of the fan filter caused by long-term use of the metamaterial magnetic field sensor 1, resulting in poor heat dissipation. The utility model has the advantage of automatically cleaning the filter of the metamaterial magnetic field sensor 1, and solves the problem that the fan filter is easily clogged.

[0038] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A protective device for a high-precision metamaterial magnetic field sensor, characterized in that: include: A fixing mechanism, the fixing mechanism comprising a metamaterial magnetic field sensor (1), the front of the metamaterial magnetic field sensor (1) is fixedly connected to a fixing frame (2), the top of the fixing frame (2) is fixedly connected to a supporting frame (3), the surface of the supporting frame (3) is fixedly connected to a motor (4), the bottom output end of the motor (4) is fixedly connected to a gear (5), the front and back of the gear (5) are meshed with tooth plates (6), the outer side of the tooth plates (6) are slidably connected to a limit plate (7), the inner side of the tooth plates (6) are fixedly connected to a sliding block (8), the surface of the sliding block (8) is slidably connected to the surface of the inner wall of the fixing frame (2), the bottom of the sliding block (8) is fixedly connected to a scraper (9), the back of the scraper (9) is provided with bristles (10), and the surface of the bristles (10) contacts the surface of the metamaterial magnetic field sensor (1); A dust cleaning mechanism, the dust cleaning mechanism comprising an outlet fan (11), the surface of the outlet fan (11) is fixedly connected to the surface of the inner wall of the fixed frame (2), the back of the outlet fan (11) is movably connected to the front of the scraper (9), the surface of the inner wall of the fixed frame (2) is slidably connected to a movable plate (12), the bottom of the fixed frame (2) is fixedly connected to an air guide frame (13), and the surface of the inner wall of the air guide frame (13) is slidably connected to a filter plate (14).

2. The protective device for a high-precision metamaterial magnetic field sensor according to claim 1, characterized in that: The bottom of the scraper (9) is fixedly connected to a pulley (15), and the bottom of the pulley (15) is slidably connected to the bottom of the inner wall of the fixed frame (2).

3. The protection device for a high-precision metamaterial magnetic field sensor according to claim 1, characterized in that: A pulling handle (16) is fixedly connected to the left side of the movable plate (12), and the pulling handle (16) is used in conjunction with the movable plate (12).

4. The protection device for a high-precision metamaterial magnetic field sensor according to claim 1, characterized in that: The front side of the movable plate (12) is fixedly connected to a limit strip (17), and the left side of the limit strip (17) is movably connected to the surface of the fixed frame (2).

5. The protection device for a high-precision metamaterial magnetic field sensor according to claim 1, characterized in that: The top and bottom of the filter plate (14) are both fixedly connected to a magnetic plate (18), and the back side of the magnetic plate (18) and the front side of the air guide frame (13) are attracted to each other.

6. The protection device for a high-precision metamaterial magnetic field sensor according to claim 1, characterized in that: The top of the support frame (3) is movably connected to a protective shell (19), and the bottom of the protective shell (19) is fixedly connected to the top of the fixed frame (2).

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