CN212459307U

CN212459307U - Laser emitting angle adjusting device

Info

Publication number: CN212459307U
Application number: CN202021218693.9U
Authority: CN
Inventors: 李强
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-06-28
Filing date: 2020-06-28
Publication date: 2021-02-02
Anticipated expiration: 2030-06-28

Abstract

The utility model discloses a laser emission angle adjusting device, which is arranged on a laser detector and is provided with a receiver and a laser, wherein, the outer wall of the receiver is provided with a base supporting sheet for fixing the laser; the base support sheet is provided with two sides which are perpendicular to each other, wherein a first knob used for adjusting the pitching angle of the laser is arranged on the first side, a hinge shaft used for pitching the base support sheet is arranged on the second side, and a second knob used for fixing the pitching angle of the laser is arranged around the hinge shaft. The utility model discloses laser instrument launch angle adjusting device is first knob promptly and fixed knob promptly second knob owing to adopted the adjust knob that the outside perpendicular both sides face distribution that follows the receiver set up, and the degree of freedom when having realized the adjustment and after the adjustment to the accurate fixed of adjustment position, reduces because of the flexible detection error that causes of material.

Description

Laser emitting angle adjusting device

Technical Field

The utility model relates to a timing device of laser measuring apparatu especially relates to, a laser instrument timing device improvement that is arranged in laser particulate matter concentration to detect.

Background

In the pollution degree detecting instrument for detecting and measuring the smoke concentration by laser in the prior art, the angle of the laser needs to be adjusted aiming at chimneys with different diameters, as shown in fig. 1, a receiver receives the intensity of the reflected laser of particulate matters in the view field of the chimney, and therefore the concentration and the size of the particulate matters are judged.

However, the laser needs to intersect and pass through the field of view 102 of the receiver 101 when illuminating the space 100 within the stack, and diffuse reflections within the field of view are formed if particles are encountered, so that the concentration within the stack can be identified by the receiver. The laser 105 emitted by the laser 103 cannot directly irradiate the wall in the field of view of the receiver, otherwise the maximum bright spot in the field of view is formed, and the receiver loses the detection function. The irradiation angle of the laser 103 needs to be fixed after debugging, otherwise different irradiation angles may obtain different receiver readings, and if the detected data is different due to the irradiation angle problem of the laser 103, the system error is included. When the timing detection is performed on the laser system, the stability of the whole system needs to be ensured.

However, in the prior art, the laser 103 is arranged on the spring plate 104 bent into a V shape to adjust the angle of the laser 103 (the V-shaped spring plate is shown in an exaggerated schematic manner in the figure), and the material of the spring plate, the whole laser head bearing bracket, the frame of the receiver, and the like are all made of metal materials, and often made of metal materials of different materials.

Accordingly, the prior art is yet to be improved and developed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a laser instrument launch angle adjusting device to the problem that prior art's timing device receives the temperature influence easily, provides the timing device that can stabilize fixed timing state after the adjustment.

The technical scheme of the utility model as follows:

a laser emission angle adjusting device is arranged on a laser detector and is provided with a receiver and a laser, wherein a base supporting sheet used for fixing the laser is arranged on the outer wall of the receiver; the base support sheet is provided with two sides which are perpendicular to each other, wherein a first knob used for adjusting the pitching angle of the laser is arranged on the first side, a hinge shaft used for pitching the base support sheet is arranged on the second side, and a second knob used for fixing the pitching angle of the laser is arranged around the hinge shaft.

The laser emitting angle adjusting device is characterized in that the base support sheet is arranged in an L shape, and the outer frame of the receiver is also arranged in a square structure matched with the L-shaped base support sheet.

The laser emitting angle adjusting device is characterized in that the second knob is two second bolts arranged on the second side of the base support sheet, arc-shaped slotted holes are respectively formed in the second knob and around the hinge shaft, and the second knob is matched with the arc-shaped slotted holes so as to facilitate pitching adjustment of the base support sheet.

The laser emission angle adjusting device is characterized in that a third bolt is arranged on the hinge shaft and used for locking the hinge connection between the base support sheet and the receiver outer frame support.

The laser emission angle adjusting device is characterized in that the two second bolts and the third bolt form a triangular arrangement.

The laser emission angle adjusting device is characterized in that the first knob is a first bolt, and the bottom end of the first bolt is supported on the outer frame of the receiver.

The laser emitting angle adjusting device is characterized in that a positioning concave part is arranged on the outer frame of the receiver and corresponds to the position of the first bolt.

The laser emission angle adjusting device is characterized in that a wear-resistant material coating is further arranged in the positioning concave part.

The utility model provides a laser instrument launch angle adjusting device, owing to adopted along the perpendicular both sides face in the outside of receiver distribution setting's adjust knob be first knob promptly and fixed knob be the second knob, degree of freedom when having realized the adjustment and after the adjustment to the accurate fixed of adjustment position, reduce because of the flexible detection error that causes of material.

Drawings

FIG. 1 is a schematic diagram of the operation principle of a laser particle detector in the prior art.

Fig. 2 is a schematic perspective view of a preferred embodiment of the laser emitting angle adjusting device of the present invention, in which the second bolt and the third bolt are removed.

Fig. 3 is a schematic diagram of an outer frame of a receiver according to a preferred embodiment of the laser emission angle adjusting device of the present invention.

Fig. 4 is a schematic perspective view of a preferred embodiment of the laser emitting angle adjusting device of the present invention, wherein the second bolt and the third bolt are assembled.

Fig. 5 is another schematic angle diagram of the preferred embodiment of the laser emitting angle adjusting device of the present invention, wherein the second bolt and the third bolt are assembled.

Detailed Description

The following describes in detail preferred embodiments of the present invention.

In the preferred embodiment of the present invention, as shown in fig. 2 and 3, the laser emitting angle adjusting device is disposed in a laser detector (the whole laser detector is not shown in the figure), it can be understood that, the laser receiver 201 is disposed on the bearing platform and aligned with the space to be detected, for example, in a chimney, in the visual field, a laser is disposed on one side of the laser receiver, for example, but not limited to, above the receiver, the laser body is not shown in the figure, but the mounting hole 202 shown in fig. 2, 4 and 5 is used to mount and fix the laser, and the laser is mounted according to the same direction as the receiver 201 and with a slight included angle.

The L-shaped base plate 203 is disposed on the outer frame of the receiver 201, but not limited to, the outer frame of the receiver 201 is configured to have a square shape, but not limited to this, for example, a cylindrical shape may also be used, but two sides perpendicular to each other are geometrically formed from the side edges, and the base plate 203 does not necessarily have to have an L-shaped structure, as long as an adjustment structure for the laser can be formed from the two sides perpendicular to each other.

On two mutually perpendicular sides, one side of the substrate wafer is arranged with a first knob 204 for adjusting the laser pitch angle, which may be referred to as the first side. On the other side, i.e., a second side perpendicular to the first side, a hinge shaft 205 for facilitating the pitch adjustment of the base plate, and a second knob 206 disposed around the hinge shaft for fixing the pitch angle of the laser are provided. It should be noted that the above descriptions of the first side and the second side are only for convenience of description, and there is no substantial precedence order, and the two can be used interchangeably.

To facilitate the adjustment of the first knob 204, the first knob 204 may be arranged relatively close to the edge, and the hinge 205 may be arranged substantially centrally on the second side, so that the angular adjustment of the laser itself does not require an excessive angle, but may be well within the maximum adjustment amplitude of the first knob 204.

In a simpler implementation, the first knob 204 is formed by a first bolt passing through the base plate 203, the bottom of which abuts against the outer frame outer side wall of the receiver 201.

The second knob 206 is two second bolts and is arranged in a triangle with the hinge shaft 205, and an arc-shaped slot hole 216 with a certain radian around the hinge shaft is further arranged on the base supporting sheet 203, as shown in fig. 2. The hinge shaft 205 may also be implemented by a third bolt, so that when the pitch angle of the laser needs to be fixed, the laser can be screwed tightly from the position of the hinge shaft. Therefore, laser instrument launch angle adjusting device just can be through in mutually perpendicular's both sides on the base plate, wherein one side is used for adjusting the pitch angle of laser instrument, and this vertically opposite side can be fixed through the three base plate, because the principle of three point fixation face, just can be very firm and accurate will the pitch angle of laser instrument is fixed. The third bolt can also adopt a conical sawtooth locking washer arranged in a corresponding hole on the base supporting sheet so as to better lock the hinge shaft.

In the square configuration of the preferred embodiment of the present invention, as shown in the figure, an L-shaped base plate 203 is used, which facilitates assembly of the base plate (on which the laser is mounted) and the outer frame of the receiver.

Timing device of laser instrument, its theory of operation as follows: will the laser instrument is installed the outer frame of receiver 201 is last, utilizes the rotation of first knob 204 to adjust, the base support piece will wind hinge 205 carries out the regulation of every single move angle, and second knob 206 is just in this moment there is the displacement in the arc slotted hole 216 on the base support piece 203.

After the adjustment is completed, the second knob 206 on the second side is locked. In the preferred embodiment, the second knob is provided as two second bolts, and the hinge shaft 205 is also provided as a third bolt, and the distribution of the three bolt positions is in a triangular arrangement, specifically but not limited to the position relationship of an equilateral triangle. By locking the second knob 206 and the bolt on the hinge shaft 205, the angle of the first side can be locked by using the principle of three-point fixed plane. The locking mode is far more accurate than the spring piece mode in the prior art, the adjustment is not needed in the service life process of the whole product, and the locking mode has good keeping stability.

Laser instrument launch angle adjusting device, for having the effect of keeping better, can also with the outer frame setting of base support piece and receiver adopts homogeneous metal material to adopt thicker steel sheet, for example 5 millimeters thick steel with L type base support piece, just so can guarantee the system stability of whole timing device. The utility model discloses a three point fixation of side has reduced the product detection error that the systematic deformation of product in the use leads to, can form accurate detection data.

It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are considered to be within the scope of the invention as defined by the following claims.

Claims

1. A laser emission angle adjusting device is arranged on a laser detector and is provided with a receiver and a laser, and is characterized in that a base supporting sheet used for fixing the laser is arranged on the outer wall of the receiver; the base support sheet is provided with two sides which are perpendicular to each other, wherein a first knob used for adjusting the pitching angle of the laser is arranged on the first side, a hinge shaft used for pitching the base support sheet is arranged on the second side, and a second knob used for fixing the pitching angle of the laser is arranged around the hinge shaft.

2. The laser emission angle adjusting apparatus according to claim 1, wherein the submount sheet is provided in an L-shape, and the outer frame of the receiver is also provided in a square structure matching the L-shaped submount sheet.

3. The apparatus of claim 2, wherein the second knob is two second bolts disposed on the second side of the substrate holder, and an arc slot is disposed around the hinge shaft, respectively, so that the pitch of the substrate holder can be adjusted by the second knob and the arc slot.

4. The device as claimed in claim 3, wherein a third bolt is provided on the hinge shaft for locking the hinge of the base plate and the receiver outer frame bracket.

5. The laser emission angle adjustment device according to claim 4, wherein the two second bolts and the third bolt form a triangular arrangement.

6. The laser emitting angle adjusting apparatus as claimed in claim 1, wherein the first knob is a first bolt, and a bottom end thereof is supported against an outer frame of the receiver.