Spectrum analyzer capable of improving detection efficiency

Abstract

The invention relates to a spectrum analyzer capable of improving detection efficiency, comprising: an excitation table module, the excitation table module is internally provided with a spark chamber, and the bottom of the spark chamber is communicated with a discharge port; the tungsten carbide sheet covers the spark chamber; the excitation module comprises an electrode, a sealing cover and an elastic unit, the tip end of the electrode extends into the spark chamber through the discharging port, a gap between the inner wall forming the discharging port and the side face of the electrode is a dust channel, the sealing cover is fixed to the electrode, the electrode is matched with the elastic unit, and the sealing cover can open and close the dust channel; and the collecting cup is located below the discharging opening. The collecting cup is located outside the spark chamber, so that the collecting cup is convenient to clean, and the working efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of metal detection and analysis, and in particular to a spectrum analyzer for improving detection efficiency. Background Art

[0002] With the development of metal detection and analysis technology, direct-reading spectrometers have emerged and are widely used for elemental composition analysis of metals and alloy compounds. Using electric sparks to ablate the surface material of a metal sample to produce a characteristic emission spectrum, the basic principle is to evaporate, atomize, and excite the sample at a certain energy level, causing it to emit light of a specific wavelength. (Due to the different atomic structures of different metal elements, they emit different characteristic spectral lines after excitation. These spectral lines are arranged in a certain order and maintain a certain intensity ratio.) The wavelength and intensity of these lines are then analyzed and recorded using spectroscopic and detection devices to determine the type and content of the elements in the sample.

[0003] During the excitation process, electrodes ignite sparks in the spark chamber, which is filled with argon gas. The sparks ablate the surface material of the metal sample, generating black dust (carbon deposits). Existing metal detection and analysis technologies use a dust cup within the spark chamber to collect this black dust. However, during use, it was discovered that the spark chamber must be sealed to a certain degree. After the dust cup has collected dust for a period of time, the spark chamber must be opened and the dust cup removed to clean the dust. During this cleaning and installation process, the spectrum analyzer must be paused. Furthermore, opening the sealed spark chamber allows air to enter the spark chamber. After the dust cup is cleaned, argon gas must be refilled to expel the air before testing can resume. These two characteristics require a significant amount of time to clean the dust cup, and the spectrum analyzer cannot function properly during this time, resulting in low efficiency. Summary of the Invention

[0004] Based on this, it is necessary to address the problem of low efficiency of spectrum analyzers.

[0005] Provided is a spectrum analyzer for improving detection efficiency, comprising: The excitation platform module has a spark chamber inside, and the bottom of the spark chamber is connected to a discharge port; Tungsten carbide sheet, tungsten carbide sheet covers the spark chamber; The excitation module includes an electrode, a sealing cover, and an elastic unit. The tip of the electrode extends into the spark chamber through the discharge port. The gap between the inner wall forming the discharge port and the side of the electrode serves as a dust channel. The sealing cover is fixed to the electrode. The electrode cooperates with the elastic unit, and the sealing cover can open and close the dust channel. Collection cup: the collection cup is located below the discharge port.

[0006] In one embodiment, the spark chamber is in an inverted cone shape, and the discharge port is located at the cone tip of the spark chamber.

[0007] In one embodiment, the sealing cover is located within the spark chamber.

[0008] In one embodiment, the sealing cover has adjacent sloped surfaces and a pressing surface, and the pressing surface is attached to the inner wall surface forming the spark chamber; Along the radial direction of the sealing cover, from the electrode to the inner wall surface, the slope surface is inclined downward relative to the horizontal plane.

[0009] In one embodiment, when the elastic unit is in a deformed state, the sealing cover covers the dust passage, and the dust passage is closed; When the elastic unit is in the restored state, the sealing cover is away from the dust passage, and the dust passage is opened.

[0010] In one embodiment, a support frame is provided on the tungsten carbide sheet, and the support frame is in contact with the electrode; The spectrum analyzer also includes a fixture, and the pressure applied by the fixture acts on the tungsten carbide sheet, causing the elastic unit to deform through the support frame and the electrode.

[0011] In one embodiment, an elastic ring is installed between the tungsten carbide sheet and the spark chamber; When the elastic unit and the elastic ring are both in a deformed state, the tungsten carbide sheet is in a first position; When the elastic unit is in a restored state and the elastic ring is in a deformed state, the tungsten carbide sheet is in a second position; When the elastic unit and the elastic ring are both in a restored state, the tungsten carbide sheet is in a third position; The height of the first position is smaller than that of the second position, and the height of the second position is smaller than that of the third position.

[0012] In one embodiment, when the tungsten carbide sheet is in the first position or the second position, the support frame contacts the electrode; When the tungsten carbide sheet is at the third position, the support frame is separated from the electrode.

[0013] In one embodiment, the support frame includes at least two columns and a hoop, wherein the at least two columns connect the tungsten sheet body of the tungsten carbide sheet and the hoop, and the hoop is sleeved on the tip of the electrode.

[0014] In one embodiment, the collecting cup has a receiving cavity, a conical central column is provided at the center of the receiving cavity, and the electrode is accommodated in the central column.

[0015] In the above-mentioned spectrum analyzer, a discharge port is provided at the bottom of the spark chamber. The discharge port serves as a channel for the electrode and simultaneously forms a gap between the inner side of the discharge port and the outer side of the electrode as a dust channel. The collection cup is located below the spark chamber. The dust falls into the collection cup by its own gravity. The collection cup is located outside the spark chamber, which facilitates the cleaning of the collection cup and improves work efficiency.

[0016] In the above-mentioned spectrum analyzer, the closing cover installed on the electrode controls the opening and closing of the discharge port according to the deformation or recovery of the elastic unit. The closing cover cooperates with the elastic unit to achieve the closure of the spark chamber and the opening of the dust channel, thereby ensuring the normal detection of the spectrum analyzer while keeping the spark chamber clean. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the three-dimensional structure of a spectrum analyzer provided in one embodiment of the present application.

[0018] Figure 2 A schematic diagram of a portion of the structure of a spectrum analyzer provided in one embodiment of the present application.

[0019] Figure 3 for Figure 2 A local enlarged schematic diagram of point A in the middle.

[0020] Figure 4 This is a schematic diagram of a tungsten carbide sheet at a first position in an optical spectrum analyzer provided by one embodiment of the present application.

[0021] Figure 5 for Figure 4 A partial enlarged schematic diagram of point B in the middle.

[0022] Figure 6 This is a schematic diagram of a tungsten carbide sheet at a second position in an optical spectrum analyzer provided by one embodiment of the present application.

[0023] Figure 7 for Figure 6 A partial enlarged schematic diagram of point C in the middle.

[0024] Figure 8 A schematic diagram of the three-dimensional structure of a tungsten carbide sheet and an electrode provided in one embodiment of the present application.

[0025] Figure 9 This is a schematic diagram of a tungsten carbide sheet at a third position in an optical spectrum analyzer provided by one embodiment of the present application.

[0026] Figure 10 for Figure 9 A local enlarged schematic diagram of point D in the middle.

[0027] Reference numerals: 11. Excitation platform module; 111. Spark chamber; 112. First air hole; 113. Second air hole; 114. Discharge port; 1111. Inner wall surface; 12. Tungsten carbide sheet; 121. Tungsten sheet body; 122. Support frame; 1211. Spark hole; 1221. Column; 1222. Hoop; 13. Clamp; 14. Excitation module; 141. Electrode; 142. Closing cover; 143. Elastic unit; 1411. Conical surface; 1421. Slope surface; 1422. Pressing surface; 15. Elastic ring; 16. Collection cup; 161. Accommodation cavity; 162. Center column.

[0028] 3. Samples to be tested; DETAILED DESCRIPTION

[0029] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0030] In the description of this application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing this application and simplifying the description, and does 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 cannot be understood as a limitation on this application.

[0031] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of this application, if the term "plurality" appears, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0032] In this application, unless otherwise specified or limited, the terms "mounted," "connected," "connected," "fixed," etc., should be interpreted broadly. For example, these terms may refer to fixed connections, removable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediary; and internal communication between two components or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0033] In this application, unless otherwise expressly specified or limited, if a first feature is described as being "above" or "below" a second feature, or similar descriptions, this may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is described as being "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is described as being "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0034] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only embodiment.

[0035] See Figure 1-4 As shown, an embodiment of the present application provides a spectrum analyzer for improving detection efficiency, including an excitation platform module 11, a tungsten carbide sheet 12, a fixture 13, an excitation module 14 and a collection cup 16. The tungsten carbide sheet 12 is close to the working plane of the excitation platform module 11. The excitation platform module 11 has a spark chamber 111. The spark chamber 111 forms an opening on the working plane of the excitation platform module 11. The bottom of the spark chamber 111 is connected to a discharge port 114. The tungsten carbide sheet 12 covers the opening so that the tungsten carbide sheet 12 covers the spark chamber 111. The tungsten carbide sheet 12 is used to hold the sample 3 to be tested. The tungsten carbide sheet 12 has a spark hole 1211 on its tungsten sheet body 121. The sample 3 to be tested is placed in a position to cover the spark hole 1211. The fixture 13 is arranged on one side of the excitation platform module 11. The fixture 13 has a pressure head, which presses the sample 3 to be tested onto the tungsten sheet body 121.

[0036] The excitation module 14 includes an electrode 141, a sealing cover 142, and an elastic unit 143. The tip of the electrode 141 extends into the spark chamber 111 through the discharge port 114. The gap between the inner wall forming the discharge port 114 and the side of the electrode 141 is a dust channel. The sealing cover 142 is fixedly connected to the electrode 141. The electrode 141 cooperates with the elastic unit 143 to enable the sealing cover 142 to control the opening and closing of the dust channel. The collection cup 16 is located below the discharge port 114. In this embodiment, the tip of the electrode 141 is arranged corresponding to the spark hole 1211. Specifically, the axis of the tip of the electrode 141 is aligned with the axis of the spark hole 1211, so that the spark generated by the tip of the electrode 141 can more easily pass through the spark hole 1211 to ablate the sample 3 to be tested.

[0037] The electrode 141 cooperates with the elastic unit 143, and the sealing cover 142 controls the opening and closing of the dust channel. Specifically, the electrode 141 can cause the elastic unit 143 to elastically deform, and the elastic unit 143 can also elastically recover and drive the electrode 141 to reset. The sealing cover 142 controls the opening and closing of the dust channel, including: When the elastic unit 143 is in the deformed state, the sealing cover 142 covers the dust passage, and the dust passage is closed. When the elastic unit 143 is in the restored state, the sealing cover 142 is away from the dust passage, and the dust passage is opened.

[0038] In one embodiment, the spark chamber 111 has an inner wall surface 1111, which surrounds the spark chamber 111 to form an inverted cone. A discharge port 114 is located at the tip of the spark chamber 111. Dust generated during the ablation process can flow along the inner wall surface 1111 and, relying on its own weight, fall to the bottom of the spark chamber 111, i.e., the tip of the spark chamber 111. The discharge port 114 is located at the tip of the spark chamber 111, and the dust accumulates at the tip of the spark chamber 111. After the dust passage is opened, the dust can be quickly conveyed through the dust passage into the collection cup 16 to keep the spark chamber 111 clean.

[0039] Further, combined with Figure 5-10 As shown, the tungsten carbide sheet 12 has a support frame 122, which is mounted on the bottom surface of the tungsten sheet body 121, so that the support frame 122 is located in the spark chamber 111 and contacts the electrode 141. In this solution, the fixture 13 applies pressure to the sample 3 to be tested, and the sample 3 to be tested pushes the tungsten carbide sheet 12 toward the spark chamber 111. Since the support frame 122 contacts the electrode 141, the tungsten carbide sheet 12 moves toward the spark chamber 111, and the support frame 122 pushes the electrode 141, causing the elastic unit 143 to deform.

[0040] In this embodiment, the support frame 122 includes at least two columns 1221 and a hoop 1222. The at least two columns 1221 connect the tungsten sheet body 121 of the tungsten carbide sheet 12 to the hoop 1222. The hoop 1222 is sleeved on the tip of the electrode 141. Specifically, multiple columns 1221 are circumferentially distributed outside the spark hole 1211. The annular hoop 1222 is arranged concentrically with the spark hole 1211. The multiple columns 1221 are connected to the hoop 1222 to support the hoop 1222. Because the support frame 122 contacts the conical surface 1411 forming the tip of the electrode 141, if the hoop 1222 is not used, the posts 1221 will easily bend in a direction away from the spark hole 1211 due to the guidance of the conical surface 1411 when the posts 1221 directly contact the conical surface 1411, resulting in insufficient movement of the electrode 141 and difficulty in ensuring that the sealing cover 142 can completely close the dust passage. To improve the radial stability of the posts 1221, the posts 1221 are connected to each other by the hoop 1222 to limit the relative position of the posts 1221.

[0041] However, it can be found that after the hoop 1222 contacts the conical surface 1411 , a dead angle is formed between the hoop 1222 and the conical surface 1411 . If dust accumulates in the dead angle formed by the hoop 1222 and the conical surface 1411 , it is difficult for the dust to fall normally and gather at the conical tip of the spark chamber 111 .

[0042] In order to solve the problem of dust accumulation in the dead angle formed by the hoop 1222 and the conical surface 1411, in a specific embodiment, an elastic ring 15 is installed between the tungsten carbide sheet 12 and the spark chamber 111; the deformation degree of the elastic ring 15 is greater than that of the elastic unit 143, so that after the elastic unit 143 recovers, the elastic ring 15 is still in a deformed state. The elastic ring 15 continues to recover elastically until it drives the hoop 1222 to separate from the conical surface 1411, so that the dead angle formed by the hoop 1222 and the conical surface 1411 is eliminated. Specifically, When the elastic unit 143 and the elastic ring 15 are both in a deformed state, the tungsten carbide sheet 12 is in the first position. At this time, the hoop 1222 contacts the conical surface 1411 and the dust passage is closed. When the elastic unit 143 is in the restored state and the elastic ring 15 is in the deformed state, the tungsten carbide sheet 12 is in the second position. At this time, the hoop 1222 is in contact with the cone surface 1411, but the dust passage is open. When the elastic unit 143 and the elastic ring 15 are both in the restored state, the tungsten carbide sheet 12 is in the third position, the hoop 1222 is separated from the cone surface 1411, and the dust channel is still in the open state; The height of the first position is smaller than that of the second position, and the height of the second position is smaller than that of the third position.

[0043] In this specific embodiment, the elastic ring 15 can be a rubber ring. The tungsten sheet body 121 is stepped, and the elastic ring 15 is mounted on the stepped portion of the tungsten sheet body 121. The elastic ring 15 also contacts the opening of the spark chamber 111. The elastic ring 15 not only drives the tungsten carbide sheet 12 relative to the electrode 141, thereby eliminating corners where dust can accumulate, but also acts as a seal between the tungsten sheet body 121 and the spark chamber 111 when the tungsten sheet body 121 applies force to the elastic ring 15 and deforms it.

[0044] In some embodiments of the present application, a sealing cover 142 is located within the spark chamber 111. In this embodiment, the sealing cover 142 has adjacent sloped surfaces 1421 and a pressing surface 1422. The pressing surface 1422 is attached to the inner wall surface 1111 forming the spark chamber 111. In this embodiment, the pressing surface 1422 may have a serrated shape to ensure that the pressing surface 1422 contacts the inner wall surface 1111 to achieve a tight seal that closes the dust passage.

[0045] Along the radial direction of sealing cover 142, from electrode 141 to inner wall surface 1111, slope surface 1421 slopes downward relative to the horizontal plane. Dust that falls on slope surface 1421 slides down slope surface 1421 onto inner wall surface 1111 and then falls into the dust passage along inner wall surface 1111. By providing inclined slope surface 1421 on sealing cover 142, dust can be discharged from spark chamber 111 as much as possible, maintaining a clean environment within spark chamber 111.

[0046] Furthermore, the collection cup 16 has a receiving cavity 161, with a conical central column 162 located at the center of the receiving cavity 161. The electrode 141 is housed within the central column 162. The conical central column 162 allows dust falling from above to flow along the inclined side of the central column 162 into the receiving cavity 161, away from the dust passage, thereby increasing the capacity of the collection cup 16.

[0047] Although not shown in the drawings, it is understandable that the sealing cover 142 may also be disposed outside the spark chamber 111 , that is, inside the collecting cup 16 .

[0048] In some embodiments of the present application, Figure 2 As shown in FIG3 , the spark chamber 111 further includes a first air hole 112 and a second air hole 113 , which can be connected to the argon gas input port and the exhaust gas inlet port, respectively. Furthermore, the first air hole 112 and the second air hole 113 can also serve as light channels for the excitation light of the sample 3 to be tested.

[0049] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0050] The above embodiments merely illustrate several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, all of which fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A spectrum analyzer for improving detection efficiency, characterized in that: include: An excitation platform module (11), wherein the excitation platform module (11) has a spark chamber (111), and the bottom of the spark chamber (111) is connected to a discharge port (114); a tungsten carbide sheet (12), the tungsten carbide sheet (12) covering the spark chamber (111); An excitation module (14), the excitation module (14) comprising an electrode (141), a sealing cover (142) and an elastic unit (143), the tip of the electrode (141) extending into the spark chamber (111) through the discharge port (114), a gap between an inner wall forming the discharge port (114) and a side surface of the electrode (141) forming a dust channel, the sealing cover (142) being fixed on the electrode (141), the electrode (141) cooperating with the elastic unit (143), and the sealing cover (142) being capable of opening and closing the dust channel; A collecting cup (16), the collecting cup (16) is located below the discharge port (114).

2. The spectrum analyzer for improving detection efficiency according to claim 1, characterized in that: The spark chamber (111) is in an inverted cone shape, and the discharge port (114) is located at the cone tip of the spark chamber (111).

3. The spectrum analyzer for improving detection efficiency according to claim 2, characterized in that: The sealing cover (142) is located in the spark chamber (111).

4. The spectrum analyzer for improving detection efficiency according to claim 3, characterized in that: The sealing cover (142) has adjacent sloped surfaces (1421) and a pressing surface (1422), and the pressing surface (1422) is attached to the inner wall surface (1111) forming the spark chamber (111); Along the radial direction of the sealing cover (142), from the electrode (141) to the inner wall surface (1111), the slope surface (1421) is inclined downward relative to the horizontal plane.

5. The spectrum analyzer for improving detection efficiency according to claim 1, characterized in that: When the elastic unit (143) is in a deformed state, the sealing cover (142) covers the dust passage, and the dust passage is closed; When the elastic unit (143) is in a restored state, the sealing cover (142) is away from the dust passage, and the dust passage is open.

6. The spectrum analyzer for improving detection efficiency according to claim 5, characterized in that: The tungsten carbide sheet (12) has a support frame (122), and the support frame (122) is in contact with the electrode (141); The spectrum analyzer further comprises a fixture (13), wherein the pressure applied by the fixture (13) acts on the tungsten carbide sheet (12), causing the elastic unit (143) to deform via the support frame (122) and the electrode (141).

7. The spectrum analyzer for improving detection efficiency according to claim 6, characterized in that: An elastic ring (15) is installed between the tungsten carbide sheet (12) and the spark chamber (111); When the elastic unit (143) and the elastic ring (15) are both in a deformed state, the tungsten carbide sheet (12) is in a first position; When the elastic unit (143) is in a restored state and the elastic ring (15) is in a deformed state, the tungsten carbide sheet (12) is in a second position; When the elastic unit (143) and the elastic ring (15) are both in a restored state, the tungsten carbide sheet (12) is in a third position; The height of the first position is smaller than that of the second position, and the height of the second position is smaller than that of the third position.

8. The spectrum analyzer for improving detection efficiency according to claim 7, characterized in that: When the tungsten carbide sheet (12) is in the first position or the second position, the support frame (122) is in contact with the electrode (141); When the tungsten carbide sheet (12) is at the third position, the support frame (122) is separated from the electrode (141).

9. The spectrum analyzer for improving detection efficiency according to any one of claims 5 to 8, characterized in that: The support frame (122) comprises at least two columns (1221) and a hoop (1222), wherein at least two of the columns (1221) connect the tungsten sheet body (121) of the tungsten carbide sheet (12) and the hoop (1222), and the hoop (1222) is sleeved on the tip of the electrode (141).

10. The spectrum analyzer with improved detection efficiency according to any one of claims 1 to 8, characterized in that: The collecting cup (16) has a receiving cavity (161) therein, a conical central column (162) is provided at the center of the receiving cavity (161), and the electrode (141) is accommodated in the central column (162).

Images