Adjusting mechanism of hollow cathode lamp

Abstract

The utility model discloses an adjusting mechanism of a hollow cathode lamp, which belongs to the field of hollow cathode lamps, solves the problem that the light focus point of the existing hollow cathode lamp cannot be flexibly adjusted, and comprises a tube seat, an outer protective window, a main component and a sleeve, a main component is fixedly installed on the upper surface of the tube base and located in the outer protective window, the sleeve is fixedly installed at the top end of the tube base, a lens assembly is installed in the sleeve in a sliding mode, and a lifting mechanism is fixedly installed on the side face of the sleeve. The distance between the lens and the light window at the top end of the hollow cathode lamp can be flexibly adjusted, light emitted by equipment is flexibly focused, the focusing point position of the light of the equipment can be adjusted in real time after the equipment is subsequently installed in the atomic luminoscope, the atomic luminoscope can receive and analyze the light more accurately, and the accuracy of the atomic luminoscope is improved. And the stability of the equipment in use is enhanced.

Description

Technical Field

[0001] The utility model belongs to the field of hollow cathode lamps, and in particular relates to an adjusting mechanism of a hollow cathode lamp. Background Art

[0002] The hollow cathode lamp was proposed by A. Walsh in 1955 to solve the practical measurement problems of the atomic absorption method. It is a special form of low-pressure glow discharge sharp line light source. Because the hollow cathode lamp emits a sharp line light source, it meets the conditions of atomic absorption spectroscopy and is now a commonly used component in atomic fluorescence instruments.

[0003] Chinese utility model patent CN211822256U discloses an adjustment device for a hollow cathode lamp holder, comprising a fixing frame, a horizontal adjustment mechanism and a vertical adjustment mechanism; the vertical adjustment mechanism comprises a screw rod and a first power source for driving the screw rod to rotate, the fixing frame is connected to a support plate that can move up and down along the fixing frame, a screw sleeve is fixedly connected to the support plate, and the screw sleeve is threadedly connected to the screw rod; the horizontal adjustment mechanism comprises a support plate, the support plate is fixedly connected to the support plate, a second power source and a gear driven to rotate by the second power source are arranged on the support plate, a rack meshing with the gear is fixedly connected to the hollow cathode lamp holder, and the hollow cathode lamp holder is slidably connected to the support plate in a horizontal direction;

[0004] The above design can flexibly change the position of the hollow cathode tube base through the use of multiple groups of components, making the operation more convenient. However, when the hollow cathode lamp is actually used, the hollow cathode lamp itself needs to be installed inside the atomic fluorescence instrument. The device cannot focus and adjust the light emitted by the hollow cathode lamp, which affects the practical effect of the device itself. Utility Model Content

[0005] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and utility model name of this application to avoid blurring the purpose of this section, specification abstract and utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0006] In order to solve the problems raised in the above background technology, the utility model adopts the following technical solutions.

[0007] A hollow cathode lamp adjustment mechanism comprises a tube holder, an outer protective window, a main component and a sleeve, wherein the outer protective window is fixedly mounted on the surface of the tube holder, the main component is fixedly mounted on the upper surface of the tube holder inside the outer protective window, the sleeve is fixedly mounted on the top of the tube holder, a lens assembly is slidably mounted inside the sleeve, a lifting mechanism is fixedly mounted on the side of the sleeve, the lifting mechanism comprises a left shell, a screw rod, a moving end and a motor, the left shell is fixedly mounted on the side of the sleeve, the screw rod is rotatably mounted inside the left shell, the moving end is threadedly mounted on the outside of the screw rod, the side of the moving end is fixedly connected to the lens assembly, the motor is fixedly mounted on the bottom end inside the left shell, and the output end of the motor is fixedly connected to the end of the screw rod.

[0008] As a preferred technical solution of the utility model, the lifting mechanism also includes a right shell and a limit rod. The right shell is fixedly installed on the side of the sleeve, the limit rod is fixedly installed inside the right shell, and a moving block is slidably installed outside the limit rod, and the moving block is fixedly connected to the lens assembly.

[0009] As a preferred technical solution of the utility model, the lens assembly includes a convex lens, a fixing frame and a connecting rod. The convex lens is slidably installed inside the sleeve, the fixing frame is symmetrically fixedly installed on both sides of the convex lens, and the connecting rods are fixedly installed on the side of the fixing frame, one group of connecting rods is fixedly connected to the moving end, and the other group of connecting rods is fixedly connected to the moving block.

[0010] As an optimal technical solution of the utility model, the fixing frame includes a lower pressure plate, an upper pressure plate and a fixing screw. The lower pressure plate is fixedly installed on the side of the connecting rod, and the upper pressure plate is arranged on the top of the lower pressure plate. The fixing screw is commonly threadedly installed inside the upper and lower pressure plates.

[0011] As a preferred technical solution of the utility model, the fixing frame further includes a cushion block, and the cushion block is arranged between the lower pressing plate and the upper pressing plate.

[0012] As a preferred technical solution of the utility model, the main components include support columns, anodes, middle-end brackets and cathodes, the support columns are symmetrically fixedly installed on the upper surface of the tube seat, the middle-end bracket is fixedly installed on the upper surface of the tube seat, the middle-end bracket is arranged between the support columns, the anode is fixedly installed on the top of the support column, and the cathode is fixedly installed on the top of the middle-end bracket.

[0013] As a preferred technical solution of the utility model, the main component also includes a first electrode block and a second electrode block, the first electrode block is symmetrically fixedly installed at the bottom end of the tube holder, the first electrode block is fixedly connected to the support column, the second electrode block is fixedly installed at the bottom end of the tube holder, and the second electrode block is fixedly connected to the middle end bracket.

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

[0015] In the utility model, by setting a lifting mechanism and a lens assembly, the distance between the lens and the light window at the top of the hollow cathode lamp can be flexibly adjusted, and the light emitted by the device can be flexibly focused and adjusted. After the device is subsequently installed inside the atomic fluorescence instrument, the focusing point of the device's own light can be adjusted in real time, which is convenient for the atomic fluorescence instrument to receive and analyze the light more accurately, thereby enhancing the stability of the device when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0017] Figure 2 It is a three-dimensional diagram of the external structure of the sleeve of the utility model;

[0018] Figure 3 It is a three-dimensional diagram of the lifting mechanism structure of the utility model;

[0019] Figure 4 It is a structural schematic diagram of the lifting mechanism and the lens assembly in the utility model;

[0020] Figure 5 It is a structural schematic diagram of the lens assembly in the utility model;

[0021] Figure 6 It is a structural schematic diagram of the main components in the utility model.

[0022] The corresponding relationship between the various figure labels and component names in the figure is as follows:

[0023] 1. Tube seat; 2. External protective window; 3. Main component; 31. Support column; 32. Anode; 33. Middle bracket; 34. Cathode; 35. First electrode block; 36. Second electrode block; 4. Sleeve; 5. Lens assembly; 51. Convex lens; 52. Fixed frame; 521. Lower pressure plate; 522. Upper pressure plate; 523. Pad; 524. Fixed screw; 53. Connecting rod; 6. Lifting mechanism; 61. Left shell; 62. Screw; 63. Moving end; 64. Motor; 65. Right shell; 66. Limit rod. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0025] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0026] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments. The present invention provides the following embodiments.

[0027] Depend on Figure 1 , Figure 2 and Figure 3 As shown, an adjustment mechanism for a hollow cathode lamp comprises a tube base 1, an outer protective window 2, a main component 3 and a sleeve 4, wherein the outer protective window 2 is fixedly mounted on the surface of the tube base 1, the main component 3 is fixedly mounted on the upper surface of the tube base 1 located inside the outer protective window 2, the sleeve 4 is fixedly mounted on the top of the tube base 1, a lens assembly 5 is slidably mounted inside the sleeve 4, a lifting mechanism 6 is fixedly mounted on the side of the sleeve 4, the lifting mechanism 6 comprises a left shell 61, a screw rod 62, a moving end 63 and a motor 64, the left shell 61 is fixedly mounted on the side of the sleeve 4, the screw rod 62 is rotatably mounted inside the left shell 61, the moving end 63 is threadedly mounted on the outside of the screw rod 62, the side of the moving end 63 is fixedly connected to the lens assembly 5, and the motor 64 is fixedly mounted inside the left shell 61 At the bottom of the part, the output end of the motor 64 is fixedly connected to the end of the screw rod 62. During use, the tube seat 1 is installed into the atomic fluorescence instrument, and then the main component 3 is used to make the equipment work normally. During use, the lifting mechanism 6 is used to make the lens assembly 5 slide up and down inside the sleeve 4, and the light emitted by the main component 3 is focused and adjusted. The motor 64 drives the screw rod 62 to rotate inside the left shell 61. The screw rod 62 is threadedly engaged with the moving end 63, and the moving end 63 moves up and down along the outside of the screw rod 62, thereby driving the lens assembly 5 to slide up and down inside the sleeve 4. Through the use of the lens assembly 5, the light emitted by the main component 3 is focused and adjusted, thereby ensuring the working quality of the equipment itself.

[0028] By the attached Figure 4 As shown, in this embodiment, the lifting mechanism 6 also includes a right side shell 65 and a limiting rod 66. The right side shell 65 is fixedly installed on the side of the sleeve 4, and the limiting rod 66 is fixedly installed inside the right side shell 65. A moving block is slidably installed outside the limiting rod 66, and the moving block is fixedly connected to the lens assembly 5. During use, through the use of the right side shell 65, when the lens assembly 5 slides up and down inside the sleeve 4, the side of the lens assembly 5 is supported and limited, which assists the lens assembly 5 in stable vertical movement, thereby ensuring the stability of the equipment during operation.

[0029] By the attached Figure 5As shown, in this embodiment, the lens assembly 5 includes a convex lens 51, a fixing frame 52 and a connecting rod 53. The convex lens 51 is slidably installed inside the sleeve 4, the fixing frame 52 is symmetrically fixedly installed on both sides of the convex lens 51, and the connecting rod 53 is fixedly installed on the side of the fixing frame 52. One group of connecting rods 53 is fixedly connected to the moving end 63, and the other group of connecting rods 53 is fixedly connected to the moving block. During use, the convex lens 51 is connected to the connecting rod 53 through the use of the fixing frame 52, and the convex lens 51 is assisted to follow the lifting mechanism 6 to move subsequently. By using two groups of connecting rods 53, the two groups are respectively installed on the moving end 63 and the side of the moving block to ensure the stability of the connection between the components.

[0030] By the attached Figure 5 As shown, in this embodiment, the fixing frame 52 includes a lower pressing plate 521, an upper pressing plate 522 and a fixing screw 524, the lower pressing plate 521 is fixedly installed on the side of the connecting rod 53, the upper pressing plate 522 is arranged at the top of the lower pressing plate 521, and the upper pressing plate 522 and the lower pressing plate 521 are commonly threadedly installed with a fixing screw 524. In use, the lower pressing plate 521 is placed at the bottom end of the convex lens 51, and then the upper pressing plate 522 is used to place the upper pressing plate 522 directly above the lower pressing plate 521, and then the fixing screw 524 is passed through the upper pressing plate 522 and transferred into the lower pressing plate 521, and the distance between the lower pressing plate 521 and the upper pressing plate 522 is adjusted to complete the fixation and connection of the position of the convex lens 51, and to assist the convex lens 51 in connecting the connecting rod 53.

[0031] By the attached Figure 5 As shown, in this embodiment, the fixing frame 52 also includes a cushion block 523, and the cushion block 523 is arranged between the lower pressure plate 521 and the upper pressure plate 522. During use, the cushion block 523 is placed between the lower pressure plate 521 and the upper pressure plate 522 to control the minimum distance between the lower pressure plate 521 and the upper pressure plate 522 to prevent the distance between the lower pressure plate 521 and the upper pressure plate 522 from being too small, which would cause excessive squeezing force on the convex lens 51 itself and affect the normal use of the convex lens 51 itself.

[0032] By the attached Figure 6 As shown, in this embodiment, the main component 3 includes a support column 31, an anode 32, a middle bracket 33 and a cathode 34. The support column 31 is symmetrically fixedly mounted on the upper surface of the tube holder 1, the middle bracket 33 is fixedly mounted on the upper surface of the tube holder 1, and the middle bracket 33 is arranged between the support columns 31. The anode 32 is fixedly mounted on the top of the support column 31, and the cathode 34 is fixedly mounted on the top of the middle bracket 33. During use, the support column 31, the anode 32 and the middle bracket 33, and the cathode 34 are used in coordination to discharge the inside of the external protective window 2, and the discharge is concentrated in the cavity of the cathode 34. When a voltage of 200V-500V is applied between the anode 32 and the anode 32, a glow discharge is generated, which is convenient for subsequent atomic fluorescence instrument detection.

[0033] By the attached Figure 1 As shown, in this embodiment, the main component 3 also includes a first electrode block 35 and a second electrode block 36, the first electrode block 35 is symmetrically fixedly installed at the bottom of the tube holder 1, the first electrode block 35 is fixedly connected to the support column 31, the second electrode block 36 is fixedly installed at the bottom of the tube holder 1, and the second electrode block 36 is fixedly connected to the middle end bracket 33. During use, the first electrode block 35 and the second electrode block 36 are used to power the various components inside the external protective window 2, and the auxiliary equipment moves stably.

[0034] The above content is a further detailed description of the utility model in combination with specific implementation methods. It cannot be determined that the specific implementation of the utility model is limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, without departing from the concept of the utility model, they can also make several simple deductions or substitutions, which should be regarded as belonging to the scope of protection determined by the claims submitted for the utility model.

Claims

1. An adjustment mechanism for a hollow cathode lamp, comprising a tube base (1), an outer protective window (2), a main component (3) and a sleeve (4), wherein the outer protective window (2) is fixedly mounted on the surface of the tube base (1), the main component (3) is fixedly mounted on the upper surface of the tube base (1) inside the outer protective window (2), and the sleeve (4) is fixedly mounted on the top of the tube base (1), characterized in that: A lens assembly (5) is slidably mounted inside the sleeve (4), and a lifting mechanism (6) is fixedly mounted on the side of the sleeve (4). The lifting mechanism (6) comprises a left shell (61), a screw rod (62), a movable end (63) and a motor (64). The left shell (61) is fixedly mounted on the side of the sleeve (4), the screw rod (62) is rotatably mounted inside the left shell (61), the movable end (63) is threadedly mounted outside the screw rod (62), the side of the movable end (63) is fixedly connected to the lens assembly (5), the motor (64) is fixedly mounted on the bottom end of the left shell (61), and the output end of the motor (64) is fixedly connected to the end of the screw rod (62).

2. The adjustment mechanism of the hollow cathode lamp according to claim 1, characterized in that: The lifting mechanism (6) further comprises a right side shell (65) and a limiting rod (66); the right side shell (65) is fixedly mounted on the side of the sleeve (4); the limiting rod (66) is fixedly mounted inside the right side shell (65); a moving block is slidably mounted outside the limiting rod (66); and the moving block is fixedly connected to the lens assembly (5).

3. The adjustment mechanism of the hollow cathode lamp according to claim 2, characterized in that: The lens assembly (5) comprises a convex lens (51), a fixing frame (52) and connecting rods (53); the convex lens (51) is slidably mounted inside the sleeve (4); the fixing frame (52) is symmetrically fixedly mounted on both sides of the convex lens (51); and the connecting rods (53) are fixedly mounted on the sides of the fixing frame (52); one group of connecting rods (53) is fixedly connected to the moving end (63), and the other group of connecting rods (53) is fixedly connected to the moving block.

4. The adjustment mechanism of the hollow cathode lamp according to claim 3, characterized in that: The fixing frame (52) comprises a lower pressing plate (521), an upper pressing plate (522) and a fixing screw (524); the lower pressing plate (521) is fixedly mounted on the side of the connecting rod (53); the upper pressing plate (522) is arranged on the top of the lower pressing plate (521); and the fixing screw (524) is threadedly mounted inside the upper pressing plate (522) and the lower pressing plate (521).

5. The adjustment mechanism of the hollow cathode lamp according to claim 4, characterized in that: The fixing frame (52) further comprises a cushion block (523), wherein the cushion block (523) is arranged between the lower pressing plate (521) and the upper pressing plate (522).

6. The adjustment mechanism of the hollow cathode lamp according to claim 1, characterized in that: The main component (3) comprises a support column (31), an anode (32), a middle bracket (33) and a cathode (34); the support column (31) is symmetrically fixedly mounted on the upper surface of the tube base (1); the middle bracket (33) is fixedly mounted on the upper surface of the tube base (1); the middle bracket (33) is arranged between the support columns (31); the anode (32) is fixedly mounted on the top of the support column (31); and the cathode (34) is fixedly mounted on the top of the middle bracket (33).

7. The adjustment mechanism of the hollow cathode lamp according to claim 6, characterized in that: The main component (3) further comprises a first electrode block (35) and a second electrode block (36), wherein the first electrode block (35) is symmetrically fixedly mounted on the bottom end of the tube holder (1), the first electrode block (35) is fixedly connected to the support column (31), and the second electrode block (36) is fixedly mounted on the bottom end of the tube holder (1), and the second electrode block (36) is fixedly connected to the middle end bracket (33).

Images