High-precision dust particle counter

Abstract

The utility model relates to the technical field of particle counters, and discloses a high-precision dust particle counter which comprises a dust particle counter body, an air inlet communicating pipe is arranged at the top end of the dust particle counter body, and an air inlet pipe head is arranged at the top end of the air inlet communicating pipe. The air inlet pipe head is internally provided with an attached dust cleaning assembly used for rapidly cleaning attached dust, the attached dust cleaning assembly is arranged on the air inlet pipe head, and a fixed connecting cylinder in the attached dust cleaning assembly can shield the inner wall of the air inlet pipe head; the situation that dust directly adheres to the inner wall of the air inlet pipe head and is difficult to clean is avoided, a user can suck air more quickly when using the dust particle counter body, the normal air inlet efficiency of the dust particle counter body is guaranteed, the dust particle counter body counts and detects dust particles in air more accurately, and the user experience is improved. And the user can use conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of particle counters, in particular to a high-precision dust particle counter. Background Art

[0002] A dust particle counter is an instrument used to measure the total number and size distribution of dust particles in the air. It is widely used in the pharmaceutical, electronic, precision machinery, color tube manufacturing, microbiology and other industries to monitor the purification effects and purification levels of workbenches, clean rooms and clean workshops of various clean levels to ensure product quality.

[0003] After searching, the authorized Chinese patent announcement number CN 217819909 U discloses a dust particle counter, including a bottom plate, a dust particle counter body is arranged on one side of the top of the bottom plate, and a rotating groove is opened on the other side of the top of the bottom plate, and a magnet block is glued and connected to the bottom of the rotating groove. The utility model is a dust particle counter, after the column is subjected to an upward force, the rotating block can be separated from the magnet block, at this time, the column can be rotated, and the force applied to the column is stopped, so that the column drops under the action of gravity to contact the magnet block, and then the magnet block adsorbs and fixes the column to fix the dust particle sampling head, which is suitable for being widely promoted and used.

[0004] The dust particle counter in the above patent still has certain shortcomings. When detecting dust particles in the air, the existing high-precision dust particle counter needs to draw air into the air through the air collection pipe. Each time the dust is drawn in, some dust will adhere to the head of the air collection pipe. If it is not cleaned in time, the long-term accumulation will affect the dust gas extraction rate, which will easily lead to large errors in the detection results of the dust particle counter, affecting the user's use. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a high-precision dust particle counter, which solves the problem that the existing high-precision dust particle counter needs to draw air through a collecting air pipe when detecting dust particles in the air. Each time the dust is drawn in, some dust will adhere to the head of the collecting air pipe. If it is not cleaned in time, the long-term accumulation will affect the dust gas extraction rate, which in turn will easily lead to large errors in the detection results of the dust particle counter, affecting the user's use.

[0006] The utility model provides the following technical solutions: a high-precision dust particle counter, comprising a dust particle counter body, an air intake connecting pipe is arranged at the top of the dust particle counter body, an air intake pipe head is arranged at the top of the air intake connecting pipe, an inner thread is arranged on the outer wall of the top of the air intake connecting pipe, an outer thread is arranged on the inner wall of the bottom of the air intake pipe head, the air intake pipe head is connected to the air intake connecting pipe through the inner thread and the outer thread, and an attached dust cleaning component for fast cleaning of attached dust is arranged in the air intake pipe head;

[0007] The attached dust cleaning assembly includes an inner wall annular slot opened on the inner wall of the intake pipe head, a fixed connecting cylinder is inserted in the inner wall annular slot, a fixed ring is arranged on the top of the fixed connecting cylinder, the fixed ring and the fixed connecting cylinder are fixedly connected by a plurality of fixing bolts, an upper connecting net is arranged at the bottom end of the fixed ring, and four ventilation holes are evenly arranged on the bottom side of the upper connecting net.

[0008] Preferred technical solution 1: A lower connecting net is arranged below the upper connecting net, and a connecting screw penetrates the bottom end of the lower connecting net.

[0009] Preferred technical solution 2: The top end of the connecting screw rod passes through the bottom end of the upper connecting net, and the connecting screw rod is sleeved with a first nut and a second nut.

[0010] Preferred technical solution three: the inner wall annular slot is arranged on the inner wall of the intake pipe head, and the fixed connecting cylinder is cylindrical.

[0011] This solution can make the fixed connection tube better cooperate with the air intake pipe head, and make it easier to pull out the fixed connection tube from the air intake pipe head for cleaning.

[0012] Preferred technical solution four: the upper connecting net is in the shape of a downwardly protruding funnel.

[0013] This solution enables the upper connecting net to block the silk threads or blocks in the dusty air, preventing them from entering the main body of the dust particle counter and causing damage to the main body of the dust particle counter.

[0014] Preferred technical solution five: the lower connecting net is in the shape of a triangular cone protruding upward.

[0015] This solution enables dust carried in the air passing through the vents to slide toward the bottom along the raised side walls of the lower connecting net when the dust adheres to the lower connecting net, thereby reducing the impact of dust directly accumulating on the surface of the lower connecting net.

[0016] Compared with the prior art, the utility model provides a high-precision dust particle counter, which has the following beneficial effects:

[0017] The utility model provides an attached dust cleaning assembly on the air intake pipe head, wherein the fixed connecting cylinder in the attached dust cleaning assembly can shield the inner wall of the air intake pipe head, preventing dust from directly adhering to the inner wall of the air intake pipe head and being difficult to clean; the upper connecting net and the lower connecting net arranged on the fixed connecting cylinder can make the disassembly of the fixed connecting cylinder, the upper connecting net and the lower connecting net more convenient by pulling out the fixing bolts and the connecting screws, so that the dust attached thereto can be quickly cleaned; the upper connecting net and the lower connecting net can also intercept large-volume dust blocks, preventing the dust blocks from entering the air intake connecting pipe and the dust particle counter body, thus avoiding the blockage of the air intake connecting pipe and the damage to the dust particle counter body; through the rapid cleaning of the dust accumulated on the attached dust cleaning assembly in the air intake pipe head, the user can draw air more quickly when using the dust particle counter body, thereby ensuring the normal air intake efficiency of the dust particle counter body, making the dust particle counter body more accurate in counting and detecting the dust particles in the air, and facilitating the use of the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic diagram of the structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the main cross-section of the structure of the utility model;

[0020] Figure 3 For the utility model Figure 2 A magnified view of the structure of the middle intake pipe head;

[0021] Figure 4 For the utility model Figure 3 A magnified view of the structure of the annular slot on the inner wall;

[0022] Figure 5 For the utility model Figure 3 Enlarged view of the structure of the central vent.

[0023] In the figure:

[0024] 1. Dust particle counter body; 2. Air intake connecting pipe; 3. Air intake pipe head; 4. Internal thread; 5. External thread; 6. Dust cleaning component;

[0025] 601, inner wall annular slot; 602, fixed connecting tube; 603, fixed ring; 604, fixing bolt; 605, upper connecting net; 606, vent; 607, lower connecting net; 608, connecting screw; 609, first nut; 610, second nut. DETAILED DESCRIPTION

[0026] See also Figure 1-5

[0027] Embodiment 1

[0028] A high-precision dust particle counter comprises a dust particle counter body 1, an air intake connecting pipe 2 is arranged at the top of the dust particle counter body 1, an air intake pipe head 3 is arranged at the top of the air intake connecting pipe 2, an inner thread 4 is arranged on the outer wall of the top of the air intake connecting pipe 2, an outer thread 5 is arranged on the inner wall of the bottom of the air intake pipe head 3, the air intake pipe head 3 is connected to the air intake connecting pipe 2 by the inner thread 4 and the outer thread 5, and a dust cleaning component 6 for quickly cleaning attached dust is arranged in the air intake pipe head 3.

[0029] The dust cleaning assembly 6 includes an inner wall annular slot 601 opened on the inner wall of the air intake pipe head 3, a fixed connecting tube 602 is inserted in the inner wall annular slot 601, a fixed ring 603 is arranged at the top of the fixed connecting tube 602, and the fixed ring 603 and the fixed connecting tube 602 are fixedly connected by a plurality of fixed bolts 604.

[0030] An upper connecting net 605 is provided at the bottom end of the fixed ring 603, and four ventilation holes 606 are evenly opened on the bottom side of the upper connecting net 605. A lower connecting net 607 is provided below the upper connecting net 605, and a connecting screw 608 penetrates the bottom end of the lower connecting net 607, and the top end of the connecting screw 608 penetrates the bottom end of the upper connecting net 605, and a first nut 609 and a second nut 610 are sleeved on the connecting screw 608.

[0031] Embodiment 2

[0032] The difference between this embodiment and the first embodiment is that the inner wall annular slot 601 is arranged on the inner wall of the air intake pipe head 3, and the fixed connection tube 602 is cylindrical.

[0033] The fixed connection tube 602 is better matched with the air intake pipe head 3, and the fixed connection tube 602 is easier to be pulled out and cleaned from the air intake pipe head 3.

[0034] Embodiment 3

[0035] The difference between this embodiment and the first embodiment is that the upper connecting net 605 is in the shape of a downwardly protruding funnel.

[0036] The upper connecting net 605 can block the silk threads or blocks in the dusty air, preventing them from entering the dust particle counter body 1 and causing damage to the dust particle counter body 1.

[0037] Embodiment 4: The difference between this embodiment and embodiment 1 is that the lower connecting net 607 is in the shape of a triangular cone protruding upward.

[0038] When the dust carried in the air passing through the vent 606 adheres to the lower connecting net 607, it can slide toward the bottom side along the raised side wall of the lower connecting net 607, thereby reducing the impact of dust directly accumulating on the surface of the lower connecting net 607.

[0039] In this embodiment, since the existing high-precision dust particle counter needs to draw air through the air collection pipe when detecting dust particles in the air, each time the dust is drawn in, some dust will adhere to the head of the air collection pipe. If it is not cleaned in time, the long-term accumulation will affect the dust gas extraction rate, which will easily lead to large errors in the detection results of the dust particle counter, affecting the user's use.

[0040] In summary, in specific implementation, when the user needs to detect dust particles in the air, the user starts the dust particle counter main body 1, so that the air intake pipe head 3 connected to the air intake connecting pipe 2 can suck the air. After using it for a period of time, when a certain amount of dust is accumulated on the dust cleaning component 6 provided on the air intake pipe head 3, the user can pull out the fixed connecting tube 602 inserted in the inner wall annular slot 601 opened on the inner wall of the air intake pipe head 3, and by rotating the fixing bolt 604, the fixing ring 603 is separated from the fixed connecting tube 602, and the upper connecting net 605 at the bottom end of the fixing ring 603 can be removed from the fixed connecting tube 602.

[0041] The user then rotates the first nut 609 sleeved on the top of the connecting screw 608 to allow the upper connecting net 605 and the lower connecting net 607 to be disassembled, so that the user can quickly clean the dust attached to the upper connecting net 605, the lower connecting net 607 and the inner wall of the fixed connecting tube 602. Since the fixed connecting tube 602 is inserted into the air intake pipe head 3, the dust in the air can be blocked to prevent the dust from directly adhering to the inner wall of the air intake pipe head 3. The upper connecting net 605 and the lower connecting net 607 can also play a certain role in intercepting large dust blocks to prevent dust blocks from entering the air intake connecting pipe 2 and the dust particle counter body 1.

[0042] The blockage of the air intake connecting pipe 2 and the damage to the dust particle counter body 1 are avoided. By quickly cleaning the dust accumulated on the dust cleaning component 6 in the air intake pipe head 3, the user can inhale the air more quickly when using the dust particle counter body 1, thereby ensuring the normal air intake efficiency of the dust particle counter body 1, making the dust particle count detection in the air by the dust particle counter body 1 more accurate and convenient for users to use.

[0043] It should be noted that the implementation methods not shown or described in the drawings or the text of the specification are all forms known to ordinary technicians in the relevant technical field and are not described in detail. In addition, the above definitions of each element and method are not limited to the various specific structures, shapes or methods mentioned in the embodiments.

[0044] It should also be noted that this document may provide demonstrations of parameters containing specific values, but these parameters do not need to be exactly equal to the corresponding values, but can be approximated to the corresponding values ​​within an acceptable error tolerance or design constraint. Directional terms mentioned in the embodiments, such as "upper", "lower", "front", "back", "left", "right", "inner", "outer", etc., are only referenced to the directions of the drawings and are not intended to limit the scope of protection of this application.

[0045] The above description shows and describes the preferred embodiments of the utility model. As mentioned above, it should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the utility model concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not depart from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.

Claims

1. A high-precision dust particle counter, comprising a dust particle counter body (1), characterized in that: The top of the dust particle counter body (1) is provided with an air intake connecting pipe (2), the top of the air intake connecting pipe (2) is provided with an air intake pipe head (3), the outer wall of the top of the air intake connecting pipe (2) is provided with an internal thread (4), the inner wall of the bottom of the air intake pipe head (3) is provided with an external thread (5), the air intake pipe head (3) and the air intake connecting pipe (2) are connected to each other through the internal thread (4) and the external thread (5), and the air intake pipe head (3) is provided with an attached dust cleaning component (6) for quickly cleaning attached dust; The attached dust cleaning assembly (6) comprises an inner wall annular slot (601) provided on the inner wall of the intake pipe head (3), a fixed connecting tube (602) being inserted into the inner wall annular slot (601), a fixed circular ring (603) being provided at the top of the fixed connecting tube (602), the fixed circular ring (603) being fixedly connected to the fixed connecting tube (602) by a plurality of fixed bolts (604), an upper connecting net (605) being provided at the bottom end of the fixed circular ring (603), and four ventilation holes (606) being evenly provided on the bottom side of the upper connecting net (605).

2. A high-precision dust particle counter according to claim 1, characterized in that: A lower connecting net (607) is arranged below the upper connecting net (605), and a connecting screw (608) penetrates the bottom end of the lower connecting net (607).

3. A high-precision dust particle counter according to claim 2, characterized in that: The top end of the connecting screw (608) passes through the bottom end of the upper connecting net (605), and a first nut (609) and a second nut (610) are sleeved on the connecting screw (608).

4. A high-precision dust particle counter according to claim 3, characterized in that: The inner wall annular slot (601) is arranged on the inner wall of the air intake pipe head (3), and the fixed connection cylinder (602) is cylindrical.

5. A high-precision dust particle counter according to claim 4, characterized in that: The upper connecting net (605) is in the shape of a downwardly protruding funnel.

6. A high-precision dust particle counter according to claim 5, characterized in that: The lower connecting net (607) is in the shape of a triangular pyramid protruding upward.

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