CN219391728U - Laser dust particle counter - Google Patents

Abstract

The utility model provides a laser dust particle counter, which comprises a laser dust particle counter body, wherein an air inlet pipe is arranged at the top of the laser dust particle counter body, threads are arranged on the outer wall of the air inlet pipe, a threaded sealing cover is sleeved on the air inlet pipe through threads in a meshing manner, dust collection assemblies for cleaning dust on the inner wall of the air inlet pipe are arranged in the threaded sealing cover, sealing assemblies are arranged on two sides of the dust collection assemblies, the upper frame and the lower frame are fixedly connected through clamping under the action of the dust collection heads, the dust collection heads are arranged at the bottom of an air cylinder, the dust is adsorbed through an adhesive plate, dust on the adhesive plate is cleaned more conveniently, and compared with the prior art, the dust collection mechanism is driven to conduct dust collection on the inner wall of the air pipe while the air pipe is sealed and rotated through the threaded sealing cover, so that the dust collection is automatically removed in the sealing process after each use, the next use is facilitated, and the dust collection work of the air pipe is not required to be independently carried out.

Description

Laser dust particle counter

Technical Field

The utility model relates to the field of laser dust particle counters, in particular to a laser dust particle counter.

Background

The laser dust particle counter is an instrument for measuring the number of dust particles and the particle size distribution in a unit volume in a clean environment, and can be widely applied to manufacturing enterprises and scientific research departments such as laser dust particle counters, blood centers, epidemic prevention stations, disease control centers, authorities of quality supervision houses and the like, electronic industry, pharmaceutical workshops, semiconductors, optical or precision machining, plastics, paint spraying, hospitals, environmental protection, inspection houses and the like;

the basic principle of the laser dust particle counter is that the detection laser of the optical sensor is scattered by dust particles and then is received by the photosensitive element to generate a pulse signal, the pulse signal is output and amplified, then digital signal processing is carried out, and the comparison result is represented by different parameters through comparison with a standard particle signal; the main structure is system light source, measurement cavity, light detector, flow monitor, air pump and filter, circuit system, can set up a breather pipe at laser dust particle counter top generally for with external environment gas input to measurement cavity in detect.

In daily maintenance, because laser dust particle counter is high-accuracy electronic instrument, consequently the breather pipe at its top need adopt the rubber cover to seal when not using, prevents that the dust from getting into and influencing the testing result, but simply relies on the sealed effect of rubber cover, and after every use, the inner wall of breather pipe still can adhere to some dust particle, in order not to influence the testing result, need the manual timing to clear up, and the dust is wasted time and energy.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model aims to provide the laser dust particle counter for solving the problems in the background art, and the laser dust particle counter is novel in structure, and drives the dust collection mechanism to collect dust on the inner wall of the vent pipe while the vent pipe is sealed and rotated by the threaded sealing cover, so that dust is automatically removed in the sealing process after each use, the next use is convenient, and the dust removal work of the vent pipe is not needed to be carried out independently.

In order to achieve the above object, the present utility model is realized by the following technical scheme: the utility model provides a laser dust particle counter, includes laser dust particle counter body, laser dust particle counter body top is provided with the intake pipe, and the intake pipe outer wall is equipped with the screw thread, the intake pipe has cup jointed screw thread sealed lid through the screw thread meshable, the inside dust collection subassembly to intake pipe inner wall clearance dust that is equipped with of screw thread sealed lid, and dust collection subassembly both sides are equipped with seal assembly.

Further, the dust collection assembly comprises an air cylinder, the top of the air cylinder is fixed on the inner wall of the top of the threaded sealing cover, the bottom of the air cylinder is provided with a dust collection head, dust collection openings are formed in two sides of the dust collection head, a piston rod is inserted into the air cylinder in a sliding sealing manner, and the piston rod slides out of the threaded sealing cover in a penetrating manner to be fixed with a pull plate.

Further, the dust collection head comprises an upper frame and a lower frame, the upper frame and the lower frame are in the same specification, the upper frame is fixed at the bottom of the inflator, and the upper frame is fixed with the lower frame in a clamping manner.

Further, the inner walls of the upper frame and the lower frame are provided with sticky plates.

Further, notches are formed on the surfaces of the two sides of the inflator, which are close to the bottom, and the surfaces of the upper frame and the lower frame, which are close to the outlet.

Further, the sealing assembly comprises a long screw, the long screw is engaged and inserted on the threaded sealing cover, a first baffle is fixed at the bottom of the long screw corresponding to the notches at two sides of the inflator, and a second baffle is fixed at the bottom of the long screw corresponding to the notches at two ends of the dust collection head.

Furthermore, the first baffle and the second baffle alternately seal the notches at the two ends of the dust collection head and the surfaces at the two sides of the air cylinder.

The utility model has the beneficial effects that: the utility model relates to a laser dust particle counter, which comprises a laser dust particle counter body; an air inlet pipe; a threaded sealing cover; a dust collection assembly; an air cylinder; a notch; a piston rod; pulling a plate; a dust collection head; an upper frame; a lower frame; an adhesive plate; a seal assembly; a long screw; a first baffle; a second baffle;

under the effect of this laser dust particle counter through seal assembly, the breach is sheltered from in turn to first baffle and second baffle, when not influencing dust absorption function, can prevent to dismantle the screw thread sealed lid, the dust is blown off to the inside gas of inflator can be discharged.

This laser dust particle counter passes through under the effect of dust absorption head, and upper frame and lower frame have become the dust absorption head by the joint is fixed and have been installed in the inflator bottom, adsorb the dust through the viscidity glues the board, and it is more convenient to the dust clearance on the viscidity glues the board.

This laser dust particle counter drives dust absorption mechanism and carries out the dust absorption effect to the inner wall of breather pipe when passing sealed pivoted of screw thread sealed lid to the breather pipe for prior art to sealed in-process automatic dust removal at every turn after using, the use of convenient next time does not need the manual work of carrying out the deashing to the breather pipe alone.

Drawings

FIG. 1 is a schematic diagram of the overall front structure of a laser dust particle counter according to the present utility model;

FIG. 2 is a schematic view of a dust collection assembly and a seal assembly of a laser dust particle counter according to the present utility model;

FIG. 3 is a schematic diagram of the seal assembly conditioning function of a laser dust particle counter of the present utility model;

FIG. 4 is a schematic view of a dust collection head of a laser dust particle counter according to the present utility model;

in the figure: 1. a laser dust particle counter body; 2. an air inlet pipe; 3. a threaded sealing cover; 4. a dust collection assembly; 41. an air cylinder; 411. a notch; 42. a piston rod; 43. pulling a plate; 44. a dust collection head; 441. an upper frame; 442. a lower frame; 443. an adhesive plate; 5. a seal assembly; 51. a long screw; 52. a first baffle; 53. and a second baffle.

Description of the embodiments

The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.

Referring to fig. 1 to 4, the present utility model provides a technical solution: the utility model provides a laser dust particle counter, includes laser dust particle counter body 1, laser dust particle counter body 1 top is provided with intake pipe 2, and intake pipe 2 outer wall is equipped with the screw thread, intake pipe 2 has cup jointed screw thread sealed lid 3 through the screw thread meshable, the inside dust collection subassembly 4 that is equipped with the dust to intake pipe 2 inner wall clearance dust of screw thread sealed lid 3, and dust collection subassembly 4 both sides are equipped with seal assembly 5, use at laser dust particle counter body 1 and accomplish the back, cup joint screw thread sealed lid 3 on the breather pipe, and rotate the meshing sealedly, at the rotation in-process, dust collection mechanism absorbs breather pipe inner wall dust.

In this embodiment, the dust collection assembly 4 includes the inflator 41, the inflator 41 top is fixed on the inner wall at the top of screw thread sealed lid 3, and the suction head 44 is installed to inflator 41 bottom, the dust absorption mouth has been seted up to suction head 44 both sides, the inside sliding seal grafting of inflator 41 has piston rod 42, and piston rod 42 slides and wears out screw thread sealed lid 3 and be fixed with arm-tie 43, when rotating screw thread sealed lid 3 meshing and cup joint on the breather pipe, pull arm-tie 43 makes piston rod 42 keep different, cup joints on the breather pipe along with sealed lid, and inflator 41 keeps away from piston rod 42 gradually, forms the effect of bleeding, absorbs the dust on the breather pipe inner wall through the pressure suction head 44 both ends.

In this embodiment, the dust collection head 44 includes an upper frame 441 and a lower frame 442, the upper frame 441 and the lower frame 442 are identical in specification, the upper frame 441 is fixed at the bottom of the air cylinder 41, the upper frame 441 is fastened and fixed with the lower frame 442, an adhesive plate 443 is disposed on the inner walls of the upper frame 441 and the lower frame 442, the upper frame 441 and the lower frame 442 are fastened and fixed to form the dust collection head 44, which is mounted at the bottom of the air cylinder 41, and the adhesive plate 443 is used to absorb dust, so that after the threaded sealing cover 3 is detached, the lower frame 442 and the upper frame 441 can be detached to clean the dust on the adhesive plate 443.

In this embodiment, the two side surfaces of the air cylinder 41 near the bottom and the surfaces of the upper frame 441 and the lower frame 442 near the outlet are both provided with the notch 411, the sealing assembly 5 includes the long screw 51, the long screw 51 is engaged and inserted on the threaded sealing cover 3, the position of the bottom of the long screw 51 corresponding to the notch 411 on the two sides of the air cylinder 41 is fixed with the first baffle 52, the position of the bottom of the long screw 51 corresponding to the notch 411 on the two sides of the dust collection head 44 is fixed with the second baffle 53, the first baffle 52 and the second baffle 53 alternately seal the two side surfaces of the air cylinder 41 and the notch 411 on the two sides of the dust collection head 44, in the process of sealing and dedusting the vent pipe, the first baffle 52 and the second baffle 53 seal the notch 411 on the two sides of the air cylinder 41, the second baffle 53 moves towards the interior of the air cylinder 411, the air cylinder 41 is blown out through the notch 41, and the second baffle 53 alternately blow out of the air cylinder 4 is prevented, at the same time, the dust can be sucked into the air cylinder by the piston rod 411 is prevented from being blown out by the second baffle 53, and the function of alternately sealing the air cylinder 41 is not influenced by the notch 411.

After the laser dust particle counter body 1 is used, the threaded sealing cover 3 is sleeved on the vent pipe, the threaded sealing cover is meshed with the vent pipe in a rotating mode, the long screw 51 is rotated, the first baffle plate 52 seals and shields the notches 411 on two sides of the air cylinder 41, the second baffle plate 53 is moved out to seal two ends of the dust collection head 44, at the moment, dust collection tasks can be conducted, the pulling plate 43 is pulled to enable the piston rod 42 to be kept different, the air cylinder 41 is gradually far away from the piston rod 42 along with the fact that the sealing cover is sleeved on the vent pipe, the air cylinder 41 is used for gradually removing the air suction, dust on the inner wall of the vent pipe is absorbed through the two ends of the pressure dust collection head 44, after dust collection is finished, the long screw 51 is reversely rotated, the second baffle plate 53 shields the two ends of the dust collection head 44, the notches 411 on two sides of the air cylinder 41 are leaked, at the moment, along with the movement of the piston rod 42 towards the inside of the insert cylinder, gas is sent out through the notches 411 of the air cylinder 41, the alternate shielding of the first baffle plate 52 and the second baffle plate 53, when the dust collection function is not affected, the dust collection function is prevented from being blown out, and the gas inside the air cylinder 41 can be discharged.

While the fundamental and principal features of the utility model and advantages of the utility model have been shown and described, it will be apparent to those skilled in the art that the utility model is not limited to the details of the foregoing exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims (7)

1. A laser dust particle counter comprising a laser dust particle counter body (1), characterized in that: the laser dust particle counter is characterized in that the top of the laser dust particle counter body (1) is provided with an air inlet pipe (2), the outer wall of the air inlet pipe (2) is provided with threads, the air inlet pipe (2) is sleeved with a threaded sealing cover (3) through the threads in a meshed mode, a dust collection assembly (4) for cleaning dust on the inner wall of the air inlet pipe (2) is arranged inside the threaded sealing cover (3), and sealing assemblies (5) are arranged on two sides of the dust collection assembly (4).

2. A laser dust particle counter according to claim 1, wherein: the dust collection assembly (4) comprises an air cylinder (41), the top of the air cylinder (41) is fixed on the inner wall of the top of the threaded sealing cover (3), a dust collection head (44) is arranged at the bottom of the air cylinder (41), dust collection openings are formed in two sides of the dust collection head (44), a piston rod (42) is inserted into the air cylinder (41) in a sliding sealing mode, and the piston rod (42) slides out of the threaded sealing cover (3) in a penetrating mode to be fixed with a pulling plate (43).

3. A laser dust particle counter according to claim 2, wherein: the dust collection head (44) comprises an upper frame (441) and a lower frame (442), the upper frame (441) and the lower frame (442) are identical in specification, the upper frame (441) is fixed at the bottom of the air cylinder (41), and the upper frame (441) is clamped and fixed with the lower frame (442).

4. A laser dust particle counter according to claim 3, wherein: the inner walls of the upper frame (441) and the lower frame (442) are provided with sticky plates (443).

5. A laser dust particle counter according to claim 3, wherein: both side surfaces of the inflator (41) close to the bottom and the surfaces of the upper frame (441) and the lower frame (442) close to the outlet are provided with notches (411).

6. A laser dust particle counter according to claim 5, wherein: the sealing assembly (5) comprises a long screw (51), the long screw (51) is in meshed connection with the threaded sealing cover (3), a first baffle (52) is fixed at the bottom of the long screw (51) corresponding to the positions of the notches (411) on two sides of the air cylinder (41), and a second baffle (53) is fixed at the bottom of the long screw (51) corresponding to the positions of the notches (411) on two ends of the dust collection head (44).

7. A laser dust particle counter as claimed in claim 6, wherein: the first baffle plate (52) and the second baffle plate (53) alternately seal the notches (411) at the two ends of the dust collection head (44) on the two side surfaces of the air cylinder (41).