Calibration device for laser gas analyzer

Abstract

The utility model relates to a calibration device, belongs to the technical field of gas content detection, and particularly relates to a calibration device for a laser gas analyzer, which comprises a mounting sleeve and a connecting assembly, the connecting assembly comprises a fixing block, a threaded ring, a second threaded rod, a gear, a rotating ring, a tooth block, a clamping plate, anti-skid lines and a limiting column. According to the device, the connecting assembly is matched with a limiting column through a fixing block, a threaded ring, a second threaded rod, a gear, a rotating ring, a tooth block, clamping plates, anti-skid lines and a limiting column, the distance between the clamping plates is adjusted, the clamping plates are used for clamping the transmitting ends, the device can adapt to the transmitting ends with different diameters, and the practicability of the device is improved; through cooperation of the first fixing assembly and the second fixing assembly, the laser transmitter is primarily fixed through the extrusion block, and the laser transmitter is secondarily fixed through the first clamping block and the second clamping block, so that the laser transmitter is more stable, and the calibration work effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas content detection, in particular to a calibration device for a laser gas analyzer. Background Art

[0002] The laser gas analyzer is an optical instrument. Its principle is that a transmitter set on one side of the flue emits an infrared laser to a receiver on the opposite side of the flue. When the infrared light passes through the gas in the flue, a part of it will be absorbed by the specific gas, and the remaining infrared light is received by the receiver. By analyzing the amount of laser selectively absorbed by the gas, the concentration data of the specific gas can be obtained.

[0003] Chinese patent publication number CN220552769U discloses a calibration device for a laser gas analyzer, including a laser emitter, a clamping assembly and a connecting section. The laser emitter is clamped in the clamping assembly, the clamping assembly is connected to the first end of the connecting section, and the second end of the connecting section is used to be detachably connected to the pipeline. The clamping assembly also includes multiple clamping parts, and the multiple clamping parts can simultaneously approach or move away from the laser emitter in the radial direction of the laser emitter so that the laser emitter can be located at the center of the clamping assembly. Fixing the laser emitter to one side of the pipeline can ensure the stability of the light source. At the same time, the multiple clamping parts simultaneously approach the laser emitter in the radial direction, and the line connecting the end of the clamping part close to the laser emitter can define a clamping range. The center of the clamping range always coincides with the center of the adjustment flange during the movement of the clamping part, so that the light source position of the laser emitter clamped between the multiple clamping parts coincides with the light source position of the emitting end, thereby improving the efficiency and accuracy of calibration.

[0004] In the above technical solution, due to the different models of laser gas analyzers, the calibers of the transmitting ends are also different, and the diameter of the connecting end of the device is fixed and cannot adapt to transmitting ends of different calibers, which makes the practicality of the device low.

[0005] Based on this, the present application proposes a calibration device for a laser gas analyzer. Utility Model Content

[0006] In order to solve the above technical problems, the utility model proposes a calibration device for a laser gas analyzer, which can adapt to emitting ends of different diameters through a connecting component, and fix the laser emitter through a first fixing component and a second fixing component, thereby improving the stability of the laser emitter.

[0007] The technical solution for achieving the purpose of the utility model is: a calibration device for a laser gas analyzer, comprising a mounting sleeve, a through hole being opened on the mounting sleeve, a connecting assembly being provided on the mounting sleeve, the connecting assembly comprising a fixed block, a threaded ring, a second threaded rod, a gear, a rotating ring, a tooth block, a splint, anti-slip grooves and a limit column, the four fixed blocks being fixedly connected to the mounting sleeve, the four threaded rings being rotatably connected to the four fixed blocks, the four threaded rods being threadedly connected to the four threaded rings, the four gears being fixedly connected to the four threaded rings, the rotating ring being rotatably connected to the mounting sleeve, a plurality of tooth blocks being fixedly connected to the rotating ring, the tooth blocks being meshed with the gears, the four splints being rotatably connected to the four second threaded rods, the four limit columns being fixedly connected to the four splints, the four limit columns being slidably connected to the mounting sleeve, and a first fixed assembly and a second fixed assembly being provided in the mounting sleeve.

[0008] Preferably, the first fixing assembly includes a clamping block 1 and a threaded rod 1, the clamping block 1 is slidably connected to the mounting sleeve, the threaded rod 1 is rotationally connected to the mounting sleeve, and the threaded rod 1 is threadedly connected to the clamping block 1.

[0009] Preferably, the first fixing assembly further includes a connecting plate and a rotating rod, the two connecting plates are fixedly connected to the clamping block 1, and the two rotating rods are respectively rotatably connected to the two connecting plates.

[0010] Preferably, the first fixing assembly further includes a clamping block 2 and a slide groove, the slide groove is provided on the mounting sleeve, the two clamping blocks 2 are slidably connected in the slide groove, and the two rotating rods are respectively rotatably connected to the two clamping blocks 2.

[0011] Preferably, the second fixing assembly includes a sliding column and a spring, the four sliding columns are slidably connected to the mounting sleeve, and the four springs are fixedly connected to the mounting sleeve.

[0012] Preferably, the second fixing assembly further includes an extrusion block and a roller, the four extrusion blocks are respectively fixedly connected to the four sliding columns, the four springs are respectively fixedly connected to the four extrusion blocks, and the plurality of rollers are respectively rotatably connected to the four extrusion blocks.

[0013] Compared with the prior art, the present invention has the following significant advantages:

[0014] First, in the present invention, the connection assembly is coordinated by a fixed block, a threaded ring, a second threaded rod, a gear, a rotating ring, a tooth block, a clamping plate, anti-slip grooves and a limit column. The spacing of the clamping plates is adjusted, and the clamping plate is used to clamp the transmitting end, so that the device can adapt to transmitting ends of different diameters, thereby improving the practicality of the device.

[0015] Second: In the present invention, the first fixing component and the second fixing component cooperate to use the extrusion block to preliminarily fix the laser emitter, and the clamping block one and the clamping block two to perform secondary fixation on the laser emitter, making the laser emitter more stable and improving the effect of the calibration work. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further explained below with reference to the accompanying drawings and embodiments:

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

[0018] Figure 2 It is a cross-sectional view of the internal structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of the first fixing component in the present utility model;

[0020] Figure 4 It is a cross-sectional view of the internal structure of the second fixing component in the present utility model.

[0021] Description of reference numerals:

[0022] 1. Mounting sleeve; 2. Through hole; 3. First fixing assembly; 31. Clamping block 1; 32. Threaded rod 1; 33. Connecting plate; 34. Rotating rod; 35. Clamping block 2; 36. Slide groove; 4. Connecting assembly; 41. Fixing block; 42. Threaded ring; 43. Threaded rod 2; 44. Gear; 45. Rotating ring; 46. Gear block; 47. Clamping plate; 48. Anti-slip groove; 49. Limiting column; 5. Second fixing assembly; 51. Sliding column; 52. Spring; 53. Extrusion block; 54. Roller. DETAILED DESCRIPTION

[0023] The following is a detailed description of the present invention, clearly and completely describing the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] The present invention provides an improved calibration device for a laser gas analyzer. The technical solution of the present invention is:

[0025] like Figure 1-Figure 4As shown, a calibration device for a laser gas analyzer includes a mounting sleeve 1, a through hole 2 is opened on the mounting sleeve 1, a connecting assembly 4 is provided on the mounting sleeve 1, and the connecting assembly 4 includes a fixed block 41, a threaded ring 42, a second threaded rod 43, a gear 44, a rotating ring 45, a tooth block 46, a clamping plate 47, an anti-slip pattern 48 and a limiting column 49. Four fixed blocks 41 are fixedly connected to the mounting sleeve 1, and the fixed blocks 41 are distributed in a circular array with the center of the mounting sleeve 1 as the center of the circle. The four threaded rings 42 are respectively rotatably connected to the four fixed blocks 41, the four threaded rods 43 are respectively threadedly connected to the four threaded rings 42, and the four gears 4 4 are respectively fixedly connected to the four threaded rings 42, a rotating ring 45 is rotatably connected to the mounting sleeve 1, a plurality of tooth blocks 46 are fixedly connected to the rotating ring 45, the tooth blocks 46 are distributed in a ring array with the center of the rotating ring 45 as the center of the circle, the tooth blocks 46 are engaged with the gear 44, four clamping plates 47 are respectively rotatably connected to the four threaded rods 43, the cross section of the clamping plates 47 is arc-shaped, four limiting posts 49 are respectively fixedly connected to the four clamping plates 47, the four limiting posts 49 are slidably connected to the mounting sleeve 1, the length of the two limiting posts 49 is greater than the diameter of the mounting sleeve 1, and the first fixing component 3 and the second fixing component 5 are provided in the mounting sleeve 1.

[0026] Further, such as Figure 1-Figure 3 As shown, the first fixing component 3 includes a clamping block 31 and a threaded rod 32. The clamping block 31 is slidably connected to the mounting sleeve 1. The clamping block 31 is located below the through hole 2. The threaded rod 32 is rotatably connected to the mounting sleeve 1. The threaded rod 32 is threadedly connected to the clamping block 31.

[0027] Further, such as Figure 1-Figure 3 As shown, the first fixing assembly 3 also includes a connecting plate 33 and a rotating rod 34. The two connecting plates 33 are fixedly connected to the clamping block 1 31. The two connecting plates 33 are symmetrical with the clamping block 1 31 as the axis. The two rotating rods 34 are respectively rotatably connected to the two connecting plates 33.

[0028] Further, such as Figure 1-Figure 3 As shown, the first fixing component 3 also includes a clamp block 2 35 and a slide groove 36. The slide groove 36 is opened on the mounting sleeve 1. The slide groove 36 is located above the through hole 2. The two clamp blocks 2 35 are slidably connected in the slide groove 36. The length of the clamp block 2 35 is greater than the length of the through hole 2. The two rotating rods 34 are respectively rotatably connected to the two clamp blocks 2 35.

[0029] Further, such as Figure 1-Figure 4 As shown, the second fixing assembly 5 includes sliding columns 51 and springs 52. The four sliding columns 51 are slidably connected to the mounting sleeve 1. The sliding columns 51 are distributed in a circular array with the center of the mounting sleeve 1 as the center of the circle. The four springs 52 are fixedly connected to the mounting sleeve 1.

[0030] Further, such as Figure 2-Figure 4As shown, the second fixing component 5 also includes an extrusion block 53 and a roller 54. The four extrusion blocks 53 are respectively fixedly connected to the four sliding columns 51. In the initial state, the four extrusion blocks 53 are fitted together and have a semicircular groove thereon. The four springs 52 are respectively fixedly connected to the four extrusion blocks 53. A plurality of rollers 54 are respectively rotatably connected to the four extrusion blocks 53. The rollers 54 are located at one end of the extrusion block 53 away from the spring 52. The rollers 54 are distributed in a linear array on the extrusion block 53.

[0031] The specific working method is: when the laser gas analyzer needs to be calibrated, the installation sleeve 1 of the device is put on the emitting end of the analyzer, and then the rotating ring 45 is rotated, and the tooth block 46 rotates accordingly. Since the tooth block 46 is engaged with the gear 44, the gear 44 rotates accordingly, driving the threaded ring 42 to rotate. Since the threaded rod 2 43 is threadedly connected to the threaded ring 42, the threaded rod 2 43 moves with the rotation of the threaded ring 42, driving the clamping plate 47 to move inward, so that the spacing between the clamping plates 47 becomes smaller, and the emitting end is clamped by the clamping plate 47, thereby completing the installation of the installation sleeve 1, and then the laser emitter is passed through the through hole 2, and the laser emitter is pushed to squeeze the squeezing block 53, so that the squeezing block 53 moves in the direction of the spring 52. When the roller 54 contacts the laser emitter, the laser emitter is stopped from being pushed. At this time, the laser emitter is multiple The roller 54 is clamped and initially fixed, and then the threaded rod 1 32 is rotated. Since the clamping block 1 31 is threadedly connected to the threaded rod 1 32, the clamping block 1 31 moves toward the through hole 2 as the threaded rod 1 32 rotates, and the connecting plate 33 moves accordingly, and the connecting plate 33 is rotatably connected to the rotating rod 34, so the rotating rod 34 starts to rotate. Since the rotating rod 34 is rotatably connected to the clamping block 2 35, and the clamping block 2 35 is slidably connected to the slide groove 36, the clamping block 2 35 moves toward the through hole 2 as the rotating rod 34 rotates. The laser emitter is clamped by the clamping block 1 31 and the clamping block 2 35 and is fixed for a second time, making the laser emitter more stable, thereby improving the efficiency of the calibration work. After the installation is completed, the laser emitter is started and adjusted and calibrated by adjusting the flange according to the position of the laser at the receiving end.

[0032] The technical means disclosed in the present invention are not limited to the technical means disclosed in the above technical means, but also include technical solutions composed of equivalent replacements of the above technical features. Matters not covered in the present invention belong to the common knowledge of those skilled in the art.

Claims

1. A calibration device for a laser gas analyzer, comprising a mounting sleeve (1), wherein the mounting sleeve (1) is provided with a through hole (2), and wherein: The mounting sleeve (1) is provided with a connecting assembly (4), and the connecting assembly (4) includes a fixed block (41), a threaded ring (42), a second threaded rod (43), a gear (44), a rotating ring (45), a tooth block (46), a clamping plate (47), an anti-slip pattern (48) and a limiting column (49), the four fixed blocks (41) are fixedly connected to the mounting sleeve (1), the four threaded rings (42) are respectively rotatably connected to the four fixed blocks (41), the four threaded rods (43) are respectively threadedly connected to the four threaded rings (42), and the four gears (44) are respectively threadedly connected to the four threaded rings (42). ) are respectively fixedly connected to the four threaded rings (42), the rotating ring (45) is rotatably connected to the mounting sleeve (1), the plurality of tooth blocks (46) are fixedly connected to the rotating ring (45), the tooth blocks (46) are engaged with the gear (44), the four clamping plates (47) are respectively rotatably connected to the four threaded rods (43), the four limiting columns (49) are respectively fixedly connected to the four clamping plates (47), the four limiting columns (49) are slidably connected to the mounting sleeve (1), and the mounting sleeve (1) is provided with a first fixing component (3) and a second fixing component (5).

2. A calibration device for a laser gas analyzer according to claim 1, characterized in that: The first fixing assembly (3) comprises a clamping block (31) and a threaded rod (32), wherein the clamping block (31) is slidably connected to the mounting sleeve (1), the threaded rod (32) is rotatably connected to the mounting sleeve (1), and the threaded rod (32) is threadedly connected to the clamping block (31).

3. A calibration device for a laser gas analyzer according to claim 2, characterized in that: The first fixing assembly (3) further comprises a connecting plate (33) and a rotating rod (34), wherein the two connecting plates (33) are fixedly connected to the clamping block (31), and the two rotating rods (34) are respectively rotatably connected to the two connecting plates (33).

4. A calibration device for a laser gas analyzer according to claim 3, characterized in that: The first fixing assembly (3) further comprises a clamping block (35) and a sliding groove (36), wherein the sliding groove (36) is provided on the mounting sleeve (1), the two clamping blocks (35) are slidably connected in the sliding groove (36), and the two rotating rods (34) are respectively rotatably connected to the two clamping blocks (35).

5. The calibration device for a laser gas analyzer according to claim 1, characterized in that: The second fixing assembly (5) comprises a sliding column (51) and a spring (52), wherein the four sliding columns (51) are slidably connected to the mounting sleeve (1), and the four springs (52) are fixedly connected to the mounting sleeve (1).

6. A calibration device for a laser gas analyzer according to claim 5, characterized in that: The second fixing assembly (5) further comprises an extrusion block (53) and a roller (54), wherein the four extrusion blocks (53) are respectively fixedly connected to the four sliding columns (51), the four springs (52) are respectively fixedly connected to the four extrusion blocks (53), and the plurality of rollers (54) are respectively rotatably connected to the four extrusion blocks (53).

Images