CN211318111U

CN211318111U - Calibrator set for dust meter

Info

Publication number: CN211318111U
Application number: CN201921753908.4U
Authority: CN
Inventors: 陆庆荣
Original assignee: Nanjing Baishi Safety Equipment Co ltd
Current assignee: Nanjing Baishi Safety Equipment Co ltd
Priority date: 2019-10-18
Filing date: 2019-10-18
Publication date: 2020-08-21
Anticipated expiration: 2029-10-18

Abstract

The utility model discloses a dust meter calibrator group, including the range calibrator, inclined plane in the range calibrator passes through fixed establishment and range calibrator fixed connection, be equipped with the opening on the range calibrator lateral wall, the matching is equipped with the fixed block in the opening, inclined plane and fixed block fixed connection, the range calibrator outside is equipped with the limiting plate, the limiting plate area is greater than the opening size, limiting plate and fixed block fixed connection, the limiting plate is close to two stoppers of symmetry fixedly connected with on the terminal surface of range calibrator, the symmetry is equipped with two spacing grooves that match with two stoppers respectively on the outer wall of range calibrator, be equipped with two fixed establishment of fixing two stoppers respectively on the range calibrator. The utility model discloses can be convenient change the inclined plane, do not need complicated operation, holistic fixed knot constructs comparatively stably simultaneously, and the inclined plane can not produce the skew easily, guarantees calibration efficiency.

Description

Calibrator set for dust meter

Technical Field

The utility model relates to a dust meter calibrator technical field especially relates to dust meter calibrator.

Background

The calibrator of the existing laser dust instrument is a calibrator adjusted by screws, and the calibrator extrudes a metal sheet by utilizing the height of the screws to cause the deformation of the metal sheet so as to form a scattering light path. However, since the screw is adjustable, if there is vibration or impact during use, the height of the screw may be slightly changed. Even a small change can cause a change in the scattering optical path, which eventually causes a change in the magnitude of the output optical signal from the calibrator, resulting in calibrator inaccuracy.

Through retrieval, the Chinese patent No. CN205333481U discloses a calibrator group, which comprises a zero calibration calibrator and a measuring range calibrator, wherein the zero calibration calibrator and the measuring range calibrator are matched for use; the zero marking calibrator mainly comprises a zero marking fixing seat, a zero marking rod body, a zero marking positioning pin and an optical trap, wherein the optical trap is arranged on the zero marking rod body; the range calibrator comprises a range fixing base, a range rod body and a range positioning pin, wherein an incidence port and an exit port are formed in the range rod body, frosted glass with fixed inclination angles is arranged on one side of the incidence port and the exit port in the range rod body, and two inclined planes are arranged in the range rod body.

The existing calibrator group has the following defects: the inclined plane passes through the screw fixation, and is comparatively troublesome in the dismouting, need consume more time, and reduce efficiency, the screw fixation structure produces easily not hard up simultaneously, leads to the calibration effect to reduce.

To this end, we propose a dust meter calibrator set to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a dust meter calibrator group.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

dust appearance calibrator group, including the range calibrator, inclined plane in the range calibrator passes through fixed establishment and range calibrator fixed connection, be equipped with the opening on the range calibrator lateral wall, the matching is equipped with the fixed block in the opening, inclined plane and fixed block fixed connection, the range calibrator outside is equipped with the limiting plate, the limiting plate area is greater than the opening size, limiting plate and fixed block fixed connection, the limiting plate is close to two stoppers of symmetry fixedly connected with on the terminal surface of range calibrator, the symmetry is equipped with two spacing grooves that match with two stoppers respectively on the outer wall of range calibrator, be equipped with two fixed establishment of two stoppers respectively on the range calibrator.

Preferably, fixed establishment is including setting up the spout in spacing groove one side, the matching is equipped with the slider in the spout, outside the slider extended to the spout, the terminal surface fixedly connected with inserted bar that the slider is close to the spacing groove, the inserted bar extends to the spacing inslot and runs through the stopper, one side that the spacing groove was kept away from to the slider is equipped with the spring, spring one end and slider fixed connection, and the spring other end and spout inner wall fixed connection.

Preferably, a rubber pad is arranged between the fixing block and the inner wall of the opening.

Preferably, the limiting plate is set to be circular, and a plurality of protective grooves are uniformly formed in the arc-shaped side wall of the limiting plate.

Compared with the prior art, the beneficial effects of the utility model are that:

1. through the limiting effect who sets up inserted bar and stopper, can fix the fixed block at the opening, drive the inserted bar through removing the slider and remove to can make the inserted bar relieve the restriction of stopper, thereby can take out the fixed block, thereby can be convenient dismantle and install.

2. Through the limiting action of fixed block and open-ended limiting action and stopper and spacing groove to restrict the degree of freedom to the inclined plane in vertical direction, restrict the stopper through two inserted bars, thereby carry out the degree of freedom restriction to the inclined plane in the horizontal direction, holistic fastness is higher, and the inclined plane is difficult for producing the skew.

Drawings

Fig. 1 is a schematic structural diagram of a dust meter calibrator set provided by the present invention;

FIG. 2 is a schematic view of the structure at A in FIG. 1;

fig. 3 is the external structure schematic diagram of the dust meter calibrator group provided by the utility model.

In the figure: 1 range calibrator, 2 inclined planes, 3 fixed blocks, 4 limiting plates, 5 limiting blocks, 6 sliders, 7 inserted rods and 8 springs.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, dust meter calibrator group, including range calibrator 1, adopt prior art, inclined plane 2 in the range calibrator 1 passes through fixed establishment and range calibrator 1 fixed connection, be equipped with the opening on the range calibrator 1 lateral wall, match and set fixed block 3 in the opening, be equipped with the rubber pad between fixed block 3 and the opening inner wall, increase leakproofness and steadiness,

inclined plane

2 and 3 fixed connection of fixed block, the range calibrator 1 outside is equipped with limiting plate 4, limiting plate 4 area is greater than the opening size, play the limiting action, limiting

plate

4 and 3 fixed connection of fixed block, limiting plate 4 sets up circularly, and evenly be equipped with a plurality of guard grooves on the limiting plate 4 arc lateral wall, conveniently take inclined plane 2 out through limiting plate 4.

Wherein, two limit blocks 5 are symmetrically and fixedly connected on the end surface of the limit plate 4 close to the range calibrator 1, two limit grooves respectively matched with the two limit blocks 5 are symmetrically arranged on the outer wall of the range calibrator 1, the limit blocks 5 can enter the limit grooves to play a limiting role, two fixing mechanisms respectively fixing the two limit blocks 5 are arranged on the range calibrator 1, each fixing mechanism comprises a chute arranged on one side of the limit groove, a slide block 6 is arranged in the chute in a matching way, the slide block 6 extends out of the chute, the slide block 6 can slide in the chute, an inserted link 7 is fixedly connected with the end surface of the slide block 6 close to the limit grooves, the inserted link 7 extends into the limit grooves and penetrates through the limit blocks 5, the position of the limit blocks 5 can be limited by the inserted link 7, a spring 8 is arranged on one side of the slide block 6 far from the limit grooves, one end of the spring, the spring 8 provides elasticity, and the limiting effect on the limiting block 5 is guaranteed under the condition of no external force, so that the fixing effect on the inclined plane is guaranteed.

In the utility model, the inclined plane 2 is limited in the vertical direction through the fixed block 3 and the two limit blocks 5, and the inserted bar 7 is limited in the horizontal direction, so that the whole structure is stable; when the inclined plane 2 needs to be disassembled and assembled, the two sliding blocks 6 are pushed in opposite directions, so that the two insertion rods 7 are separated from the two limiting blocks 5, the limiting effect on the limiting blocks 5 is relieved, then the limiting plates 4 are pulled outwards, and the inclined plane 2 is taken out of the range calibrator 1.

The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be equivalent replacement modes, and all are included in the scope of the present invention.

Claims

1. The dust meter calibrator group comprises a range calibrator (1) and is characterized in that an inclined plane (2) in the range calibrator (1) is fixedly connected with the range calibrator (1) through a fixing mechanism, an opening is arranged on the side wall of the measuring range calibrator (1), a fixed block (3) is matched and arranged in the opening, the inclined plane (2) is fixedly connected with the fixed block (3), a limit plate (4) is arranged on the outer side of the range calibrator (1), the area of the limit plate (4) is larger than the size of the opening, the limit plate (4) is fixedly connected with the fixed block (3), two limiting blocks (5) are symmetrically and fixedly connected on the end surface of the limiting plate (4) close to the range calibrator (1), two limit grooves which are respectively matched with the two limit blocks (5) are symmetrically arranged on the outer wall of the measuring range calibrator (1), the range calibrator (1) is provided with two fixing mechanisms for fixing the two limit blocks (5) respectively.

2. The dust meter calibrator group according to claim 1, wherein the fixing mechanism comprises a sliding groove arranged on one side of a limiting groove, a sliding block (6) is arranged in the sliding groove in a matching manner, the sliding block (6) extends out of the sliding groove, an insertion rod (7) is fixedly connected to the end face, close to the limiting groove, of the sliding block (6), the insertion rod (7) extends into the limiting groove and penetrates through the limiting block (5), a spring (8) is arranged on one side, far away from the limiting groove, of the sliding block (6), one end of the spring (8) is fixedly connected with the sliding block, and the other end of the spring (8) is fixedly connected with the inner wall of the sliding groove.

3. The dust meter calibrator set according to claim 1, wherein a rubber pad is disposed between the fixing block (3) and the inner wall of the opening.

4. The dust meter calibrator group according to claim 1, wherein the limiting plate (4) is circular, and a plurality of protection grooves are uniformly formed in the arc-shaped side wall of the limiting plate (4).