Laser gas absorption cell structure arranged in wristwatch

Abstract

The utility model discloses a laser gas absorption cell structure arranged in a wristwatch, which comprises a watchcase, a display fixed at the upper end of the watchcase, an adjusting component arranged at the left end of the watchcase, an absorption cell fixed inside the watchcase, a cover plate fixed at the upper end of the absorption cell, an air inlet hole arranged at the left end of the absorption cell, and a transverse absorption cell, the two ends of the transverse absorption cell are communicated with longitudinal absorption cells respectively, a detector and a laser are correspondingly installed in the two longitudinal absorption cells, an adjusting groove is formed in one end of the transverse absorption cell, an installation counter bore is formed in the other end of the transverse absorption cell, a movable reflecting mirror is rotationally connected into the adjusting groove, and a fixing elastic piece is fixed into the installation counter bore. The transverse absorption cell and the two static reflectors are communicated to form a U shape, so that under the condition that the volume is allowed, a structure which is simple to assemble and easy to debug is realized, and the effect of realizing the long-optical-path gas absorption cell in a limited space is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas absorption pools, in particular to a laser gas absorption pool structure placed in a wristwatch. Background Art

[0002] Gas absorption cells are mainly used in air pollution research, environmental monitoring, gas purity analysis, industrial production process monitoring, emission gas analysis and petroleum exploration geological logging process monitoring, and play an extremely important role.

[0003] The existing gas absorption pool will encounter the following problems during use:

[0004] 1. Most of the long optical path gas absorption cells on the market can be roughly divided into White cells, Herriott cells and CMR cells. Among them, White cells, Herriott cells and their improved versions are composed of expensive optical reflectors such as concave reflectors. The CMR cell uses multiple reflections within a circle, and the processing of its cylindrical inner surface is very difficult. This has caused the costs of these three solutions to remain high, and the design, installation and commissioning require a high level of technical skills from the relevant personnel.

[0005] 2. When the gas absorption cell is used outdoors, it is easy to be bumped by external objects, which may cause the inclination angle of the reflector to change, resulting in a change in the reflection path, which may easily affect its normal operation and is not conducive to accurate detection. Utility Model Content

[0006] The purpose of the utility model is to provide a laser gas absorption pool structure placed in a wristwatch, which solves the problems in the above-mentioned prior art.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a laser gas absorption pool structure placed in a wristwatch, comprising a watch case, a display is fixed at the upper end of the watch case, an adjustment component is provided at the left end of the watch case, an absorption pool is fixed inside the watch case, a cover plate is fixed at the upper end of the absorption pool, and an air inlet is opened at the left end of the absorption pool;

[0008] The absorption pool includes a transverse absorption pool, and the two ends of the transverse absorption pool are respectively connected to the longitudinal absorption pools, and the two longitudinal absorption pools are correspondingly installed with detectors and lasers. One end of the transverse absorption pool is provided with an adjustment groove, and the other end of the transverse absorption pool is provided with a mounting countersunk hole. A dynamic reflector is rotatably connected in the adjustment groove, and a fixed spring is fixed in the mounting countersunk hole. A static reflector is fixed to the fixed spring, and the angle between the surface of the mounting countersunk hole that fixes the fixed spring and the transverse absorption pool is 45°.

[0009] Preferably, the transverse absorption tank and the two longitudinal absorption tanks are connected to form a U-shape, and the mounting countersunk hole and the adjustment groove are respectively located at the corners where the transverse absorption tank is connected to the two longitudinal absorption tanks.

[0010] Preferably, the moving reflector corresponds to the laser, the static reflector corresponds to the detector, and the fixed spring sheet includes two spring sheets, one of which is bent upward, and the other spring sheet forms a convex angle downward and then is bent upward.

[0011] Preferably, a driven wheel is fixed to the lower end of the dynamic reflector, and the adjustment assembly includes a connecting rod, an adjusting wheel is fixed to one end of the connecting rod, and a driving wheel corresponding to the driven wheel is fixed to the other end of the connecting rod, and a fixing groove and a switching groove distributed on the left and right are opened on the outer wall of the connecting rod, and a protective cover is fixed on the connecting rod.

[0012] Preferably, a limiting cylinder is fixed inside the protective cover, a spring is provided inside the limiting cylinder, one end of the spring is fixedly connected to the limiting cylinder, a bead seat is fixed to the other end of the spring, the bead seat is rotatably connected to the limiting bead, the bead seat is slidably connected to the limiting cylinder, and the upper and lower ends of the limiting bead are respectively provided with brushes fixedly connected to the limiting cylinder.

[0013] Preferably, the protective cover is fixedly connected to the watch case, and the connecting rod is rotatably connected to the protective cover.

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

[0015] 1. By connecting the lateral absorption cell and two static reflectors to form a U shape, a structure that is simple to assemble and easy to debug is achieved to achieve the effect of a long optical path gas absorption cell in a limited space when the volume allows.

[0016] 2. Fixing the static reflector by fixing the spring piece is conducive to the rapid installation and replacement of the static reflector. At the same time, adjusting the angle of the dynamic reflector by adjusting the component is conducive to reflecting the laser generated by the laser and making it reflect the laser vertically to the detector through the static reflector. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0018] Figure 2 It is an explosion diagram of the utility model;

[0019] Figure 3 It is an overall schematic diagram of the absorption tank of the utility model;

[0020] Figure 4 It is a schematic cross-sectional view of the absorption tank of the utility model;

[0021] Figure 5 It is a partial enlarged schematic diagram of the absorption tank of the utility model;

[0022] Figure 6 This is a schematic diagram of the interior of the watch case of the utility model;

[0023] Figure 7 It is an overall schematic diagram of the adjustment component of the utility model;

[0024] Figure 8 It is a cross-sectional schematic diagram of the limiting cylinder of the utility model.

[0025] Explanations in the figure: 1. Case; 2. Display; 3. Adjustment component; 4. Absorption pool; 5. Detector; 6. Laser; 301. Connecting rod; 302. Adjustment wheel; 303. Driving wheel; 304. Driven wheel; 305. Protective cover; 306. Limiting cylinder; 401. Cover plate; 402. Air inlet; 403. Horizontal absorption pool; 404. Moving reflector; 405. Static reflector; 406. Fixed spring; 407. Mounting countersunk hole; 408. Adjustment slot; 409. Longitudinal absorption pool; 3011. Fixed slot; 3012. Switching slot; 3061. Spring; 3062. Bead seat; 3063. Limiting bead; 3064. Brush. DETAILED DESCRIPTION

[0026] The following is a further detailed description of the implementation of the present utility model in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0027] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention 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 operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 A laser gas absorption pool structure placed in a wristwatch comprises a watch case 1, a display 2 is fixed on the upper end of the watch case 1, an adjustment component 3 is provided on the left end of the watch case 1, an absorption pool 4 is fixed inside the watch case 1, a cover plate 401 is fixed on the upper end of the absorption pool 4, an air inlet 402 is provided on the left end of the absorption pool 4, a strap is fixed on the lower end of the watch case 1, so that the user can wear the device on the wrist, display the data of the gas detected by the device through the display 2, and the user can clearly observe the value and change of the gas, and the strap can be replaced with different materials according to the user's own habits, and the absorption pool 4 comprises a transverse absorption pool 403, and the two ends of the transverse absorption pool 403 are respectively connected with longitudinal absorption pools 409, and the transverse absorption pool 403 and the two The longitudinal absorption pool 409 is connected to form a U shape, and an air inlet 402 is provided on the absorption pool 4 to facilitate the outside air to enter the absorption pool 4 for detection. The air inlet 402 is located in the center of the transverse absorption pool 403 to prevent the detection gas from directly impacting the detector 5 and the laser 6, thereby affecting the service life of the detector 5 and the laser 6. At the same time, a corresponding fixed cover plate 401 is provided on the transverse absorption pool 403 to seal the transverse absorption pool 403 to prevent the detection gas entering the transverse absorption pool 403 from entering other places inside the device and causing damage to components. By enclosing the transverse absorption pool 403 and the longitudinal absorption pool 409 into a U shape, a structure that is simple to assemble and easy to debug is achieved when the volume permits, so as to achieve the effect of a long optical path gas absorption pool in a limited space.

[0030] See also Figure 3 , Figure 4 and Figure 5, the two longitudinal absorption pools 409 are correspondingly installed with detectors 5 and lasers 6, one end of the transverse absorption pool 403 is provided with an adjustment slot 408, and the other end of the transverse absorption pool 403 is provided with a mounting countersunk hole 407, a moving reflector 404 is rotatably connected in the adjustment slot 408, a fixed spring 406 is fixed in the mounting countersunk hole 407, a static reflector 405 is fixed to the fixed spring 406, and the angle between the surface of the mounting countersunk hole 407 fixing the fixed spring 406 and the transverse absorption pool 403 is 45°, the detector 5 and the laser 6 are prior art, and no further elaboration is given here, the detector 5 and the laser 6 cooperate to detect the detection gas, and the laser emitted by the laser 6 is reflected by the moving reflector 404 and the static reflector 405, so that the laser can be vertical The surface of the detector 5 is irradiated, and the installation of the static reflector 405 is achieved by setting one surface of the mounting countersunk hole 407 to 45°. There is no need to adjust the inclination angle of the static reflector 405. The fixed spring clip 406 includes two spring clips, and the two spring clips are respectively located on the upper and lower sides of the static reflector 405, one of the spring clips is bent upward, and the other spring clip is bent upward after forming a convex angle downward. The static reflector 405 is clamped and fixed by the two spring clips, so that the static reflector 405 can be quickly installed and disassembled. The mounting countersunk hole 407 and the adjustment groove 408 are respectively located at the corners where the transverse absorption pool 403 and the two longitudinal absorption pools 409 are connected. The dynamic reflector 404 corresponds to the laser 6, and the static reflector 405 corresponds to the detector 5.

[0031] See also Figure 4 and Figure 7 The lower end of the movable reflector 404 is fixed with a driven wheel 304, the adjusting assembly 3 includes a connecting rod 301, one end of the connecting rod 301 is fixed with an adjusting wheel 302, the other end of the connecting rod 301 is fixed with a driving wheel 303 corresponding to the driven wheel 304, the driving wheel 303 and the driven wheel 304 are umbrella wheels respectively, and the driving wheel 303 and the driven wheel 304 are meshed, so that the driving wheel 303 is driven to rotate when the connecting rod 301 rotates, and the driving wheel 303 rotates to drive the driven wheel 304 to rotate , thereby rotating the movable reflector 404, adjusting the angle of the movable reflector 404, and fine-tuning the laser path emitted by the laser 6. The outer wall of the connecting rod 301 is provided with fixed grooves 3011 and switching grooves 3012 distributed on the left and right. A protective cover 305 is fixed on the connecting rod 301. By providing the fixed grooves 3011 and the switching grooves 3012 on the connecting rod 301, the rotation of the connecting rod 301 is switched, thereby preventing the angle of the movable reflector 404 from changing due to accidental touching of the adjustment component 3 during operation.

[0032] See also Figure 7 and Figure 8A limiting cylinder 306 is fixed inside the protective cover 305, and a spring 3061 is arranged inside the limiting cylinder 306. One end of the spring 3061 is fixedly connected to the limiting cylinder 306, and a bead seat 3062 is fixed to the other end of the spring 3061. The bead seat 3062 is rotatably connected to a limiting bead 3063, and the bead seat 3062 is slidably connected to the limiting cylinder 306. The upper and lower ends of the limiting bead 3063 are respectively provided with a brush 3064 fixedly connected to the limiting cylinder 306. The protective cover 305 is fixedly connected to the watch case 1, and the connecting rod 301 is rotatably connected to the protective cover 305. The limiting bead 3063 inside 306 is engaged with the fixed groove 3011 and the switching groove 3012 to realize the switching of the adjustment component 3. When the limiting bead 3063 is engaged in the switching groove 3012, the rotating connecting rod 301 can realize the adjustment of the moving reflector 404. When the limiting bead 3063 corresponds to the fixed groove 3011, the connecting rod 301 is idle when it rotates, and the moving reflector 404 cannot be adjusted to prevent accidental touch. The fixed groove 3011 and the switching groove 3012 are cleaned by the brush 3064, so that the fixed groove 3011 or the switching groove 3012 can slide more smoothly when contacting with the limiting bead 3063.

[0033] When the utility model is used:

[0034] First, the user wears the device on the wrist through the strap and then can use it;

[0035] Then, the detection gas enters the transverse absorption pool 403 and the longitudinal absorption pool 409 through the air inlet 402, and the laser 6 emits a laser. After being reflected by the moving reflector 404 and the static reflector 405, the laser irradiates the detector 5, thereby realizing the detection of the detection gas, and the detection data is displayed through the display 2;

[0036] Next, when the user moves back and forth during the work process, an object may collide with the device, which may cause the inclination angle of the moving reflector 404 or the static reflector 405 inside the device to change, so that the laser emitted by the laser 6 cannot be reflected and irradiated vertically on the detector 5, thereby affecting the detection accuracy of the device;

[0037] Finally, by pulling the adjustment component 3 outward, the switching groove 3012 on the connecting rod 301 corresponds to the limiting bead 3063 on the limiting cylinder 306, the connecting rod 301 is rotated, and the brush 3064 cleans the surface of the switching groove 3012. The rotation of the connecting rod 301 drives the driving wheel 303 to rotate, and the driving wheel 303 and the driven wheel 304 are engaged, so that when the connecting rod 301 rotates, the driving wheel 303 rotates, and the driving wheel 303 rotates and drives the driven wheel 304 to rotate, thereby causing the driving reflection The mirror 404 rotates to adjust the angle of the moving reflector 404, and then fine-tune the laser path emitted by the laser 6. The laser generated by the laser 6 is reflected by the moving reflector 404 and the static reflector 405 and then vertically irradiated on the surface of the detector 5 to ensure the accuracy of the detection. After the adjustment of the moving reflector 404 is completed, press the adjustment component 3 to make the fixed groove 3011 on the connecting rod 301 correspond to the limiting bead 3063 on the limiting cylinder 306. At this time, the connecting rod 301 is rotated to make it idle.

[0038] 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 laser gas absorption cell structure placed in a wristwatch, characterized in that: It comprises a watch case (1), a display (2) is fixed to the upper end of the watch case (1), an adjustment component (3) is provided at the left end of the watch case (1), an absorption pool (4) is fixed inside the watch case (1), a cover plate (401) is fixed to the upper end of the absorption pool (4), and an air inlet (402) is provided at the left end of the absorption pool (4); The absorption pool (4) comprises a transverse absorption pool (403), the two ends of the transverse absorption pool (403) are respectively connected to the longitudinal absorption pool (409), the two longitudinal absorption pools (409) are respectively installed with a detector (5) and a laser (6), one end of the transverse absorption pool (403) is provided with an adjustment groove (408), the other end of the transverse absorption pool (403) is provided with a mounting countersunk hole (407), a moving reflector (404) is rotatably connected in the adjustment groove (408), a fixed spring sheet (406) is fixed in the mounting countersunk hole (407), a static reflector (405) is fixed to the fixed spring sheet (406), and the angle between the surface of the mounting countersunk hole (407) fixing the fixed spring sheet (406) and the transverse absorption pool (403) is 45 degrees.

2. The laser gas absorption cell structure placed in a wristwatch according to claim 1, characterized in that: The transverse absorption pool (403) and the two longitudinal absorption pools (409) are connected to form a U shape, and the mounting countersunk hole (407) and the adjustment groove (408) are respectively located at the corners where the transverse absorption pool (403) and the two longitudinal absorption pools (409) are connected.

3. The laser gas absorption cell structure placed in a wristwatch according to claim 1, characterized in that: The moving reflector (404) corresponds to the laser (6), the static reflector (405) corresponds to the detector (5), and the fixed spring sheet (406) includes two spring sheets, one of which is bent upward, and the other of which is bent upward after forming a convex angle downward.

4. The laser gas absorption cell structure placed in a wristwatch according to claim 1, characterized in that: A driven wheel (304) is fixed to the lower end of the movable reflector (404); the adjustment component (3) comprises a connecting rod (301); an adjustment wheel (302) is fixed to one end of the connecting rod (301); a driving wheel (303) corresponding to the driven wheel (304) is fixed to the other end of the connecting rod (301); a fixing groove (3011) and a switching groove (3012) are provided on the outer wall of the connecting rod (301) and are distributed on the left and right; and a protective cover (305) is fixed to the connecting rod (301).

5. The laser gas absorption cell structure placed in a wristwatch according to claim 4, characterized in that: A limiting cylinder (306) is fixed inside the protective cover (305), a spring (3061) is provided inside the limiting cylinder (306), one end of the spring (3061) is fixedly connected to the limiting cylinder (306), the other end of the spring (3061) is fixedly connected to a bead seat (3062), the bead seat (3062) is rotatably connected to a limiting bead (3063), the bead seat (3062) is slidably connected to the limiting cylinder (306), and the upper and lower ends of the limiting bead (3063) are respectively provided with brushes (3064) fixedly connected to the limiting cylinder (306).

6. The laser gas absorption cell structure placed in a wristwatch according to claim 4, characterized in that: The protective cover (305) is fixedly connected to the watch case (1), and the connecting rod (301) is rotatably connected to the protective cover (305).

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