Air particulate matter sampler

Abstract

The utility model discloses an air particulate matter sampler, which relates to the field of air detection, and comprises a sampling head and a main machine, the sampling head comprises a TSP cutter, a PM cutter and a cutter base which are sequentially arranged from top to bottom; the opposite surfaces of the TSP cutter and the PM cutter are magnetically attracted and fixed through a magnetic attraction structure, and the opposite surfaces of the PM cutter and the cutter base are magnetically attracted and fixed through a magnetic attraction structure; the magnetic attraction structure comprises an upper magnetic column and a lower magnetic column which faces the upper magnetic column and can be connected in a magnetic attraction mode. Sealing rings are arranged on the upper end faces of the joints of the PM cutter and the cutter base. Rapid disassembly and assembly can be achieved through connection of the magnetic attraction structures, the magnetic attraction structures are correspondingly installed up and down during installation, connection can be achieved, and the magnetic attraction structures can be separated and disassembled only by screwing a very small angle to be staggered up and down during disassembly; and meanwhile, a sealing ring is arranged to ensure air tightness.

Description

TECHNICAL FIELD

[0001] The utility model relates to air detection technical field, concretely is an air particulate matter sampler. BACKGROUND

[0002] The air particulate matter sampler is used for collecting particulate matters in the air to detect air quality, and comprises a sampling head and a main machine.

[0003] 1. During actual use and installation, the threads of the cutting devices are not easy to align, installation is not convenient, and disassembly and assembly are complicated.

[0004] 2. The cutting devices are all installed by threads, and it takes many turns to complete the disassembly and assembly of the cutting devices, the sampling head is heavy, and the threading process is time-consuming and laborious.

[0005] In addition, in order to ensure air tightness, the threads of the conventional cutting devices need to be tightened, and the threaded cutting devices are prone to the problem of thread slippage, which affects the air tightness of the cutting devices and causes the air tightness to decrease. INVENTION CONTENTS

[0006] The utility model aims at providing an air particulate matter sampler, which solves the inconvenience, time consumption and labor intensity caused by the threaded installation of conventional cutting devices.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: an air particulate matter sampler, comprising a sampling head and a main machine, the sampling head comprises a TSP cutting device, a PM cutting device and a cutting device base arranged in sequence from top to bottom, an upper end surface of a PM cutting device shell connection is provided with a lip one protruding upward, and an upper end surface of a cutting device base shell connection is provided with a lip two protruding upward.

[0008] The lower port of the TSP cutting device is installed on the lip one, and the opposite surfaces of the TSP cutting device and the PM cutting device are fixed by a magnetic attraction structure, the lower port of the PM cutting device is installed on the lip two, and the opposite surfaces of the PM cutting device and the cutting device base are fixed by a magnetic attraction structure.

[0009] The magnetic attraction structure comprises an upper magnetic column and a lower magnetic column which can be magnetically connected to the upper magnetic column, the magnetic attraction structure is distributed in an equidistant ring shape around the vertical axis of the sampling head, the upper magnetic column is fixed on the lower end surface of the TSP cutting device and the PM cutting device respectively and is flush with the lower end surface, and the lower magnetic column is fixed on the upper end surface of the PM cutting device and the cutting device base connection respectively.

[0010] The upper end surface of the connection between the PM cutter and the cutter base is provided with a sealing ring, and the sealing ring is provided with a reserved hole.

[0011] Preferably, the upper magnetic column and the upper magnetic column are T-shaped, and the reserved hole of the sealing ring is a T-shaped hole with appropriate size.

[0012] Preferably, the sealing ring is sleeved on the lip one and the lip two respectively, the inner wall of the sealing ring is provided with a positioning tooth groove, and the outer wall surface of the lip one and the lip two is provided with a groove type matched with the positioning tooth groove.

[0013] Preferably, the outer shell of the TSP cutter, the PM cutter and the cutter base is provided with an anti-skid strip.

[0014] Preferably, the distribution position of the anti-skid strip corresponds to the distribution position of the magnetic attraction structure.

[0015] Preferably, the sealing ring is a rubber ring.

[0016] Compared with the prior art, the beneficial effects of the utility model lie in that: quick disassembly and assembly can be realized through the magnetic attraction structure connection, which can be completed without rotating multiple turns, the magnetic attraction structure can be connected by corresponding installation up and down during installation, and the magnetic attraction structure can be separated and disassembled by slightly rotating the angle to stagger up and down during disassembly; meanwhile, the sealing ring is arranged to ensure air tightness. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a whole structure schematic view of the utility model;

[0018] Figure 2 It is a sampling head front view of the utility model;

[0019] Figure 3 It is a sampling head perspective view one of the utility model;

[0020] Figure 4 It is a sampling head perspective view two of the utility model;

[0021] Figure 5 It is a PM cutter magnetic attraction structure and sealing ring of the utility model.

[0022] In the drawing: 1, sampling head; 11, TSP cutter; 12, PM cutter; 121, lip one; 13, cutter base; 131, lip two; 123, anti-skid strip; 2, main machine; 3, magnetic attraction structure; 31, upper magnetic column; 32, lower magnetic column; 4, sealing ring; 41, positioning tooth groove. DETAILED DESCRIPTION

[0023] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0024] As shown in Figures 1-5 The utility model provides a kind of technical scheme: an air particulate matter sampler, including sampling head 1 and host computer 2, sampling head 1 includes TSP cutter 11, PM cutter 12 and cutter base 13 sequentially arranged from top to bottom, the upper end surface of PM cutter 12 shell connection is equipped with the lip one 121 that projects upwards, the upper end surface of cutter base 13 shell connection is equipped with the lip two 131 that projects upwards;

[0025] TSP cutter 11 lower port is installed on the lip one 121, and the opposite surface of TSP cutter 11 and PM cutter 12 is magnetically attracted and fixed by magnetic attraction structure 3, PM cutter 12 lower port is installed on the lip two 131, and the opposite surface of PM cutter 12 and cutter base 13 is magnetically attracted and fixed by magnetic attraction structure 3;

[0026] Magnetic attraction structure 3 includes upper magnetic column 31 and lower magnetic column 32 which can be magnetically connected opposite upper magnetic column 31, and magnetic attraction structure 3 is distributed in equidistant annular around the vertical axis of sampling head 1, and upper magnetic column 31 is fixed on the lower end surface of TSP cutter 11 and PM cutter 12 respectively and flush with the lower end surface, and lower magnetic column 32 is fixed on the upper end surface of the connection of PM cutter 12 and cutter base 13 respectively;

[0027] The upper end surface of the connection of PM cutter 12 and cutter base 13 is equipped with sealing ring 4, sealing ring 4 is rubber ring, the material of sealing ring 4 is not limited, and a reserved hole is provided on sealing ring 4, lower magnetic column 32 is installed through the reserved hole of sealing ring 4 and flush with the upper surface of sealing ring 4, and upper magnetic column 31 and upper magnetic column 31 are both T-shaped, and the reserved hole of sealing ring 4 is T-shaped hole with suitable size;

[0028] Sealing ring 4 is sleeved on the lip one 121 and the lip two 131 respectively, the inner wall of sealing ring 4 is provided with positioning tooth groove 41, and the outer wall surface of the lip one 121 and the lip two 131 is provided with groove type matched with the positioning tooth groove 41, to ensure that sealing ring 4 is not easy to deform and shift;

[0029] The outer shell of TSP cutter 11, PM cutter 12 and cutter base 13 is provided with anti-skid strip 123, and the distribution position of anti-skid strip 123 corresponds to the distribution position of magnetic attraction structure 3, and the position of anti-skid strip 123 can determine whether the magnetic attraction position of magnetic attraction structure 3 is in place.

[0030] It should be noted that the relational terms herein, such as first and second, and the like, are used solely to distinguish one from another entity or action without necessarily requiring or implying any actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0031] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. An air particulate matter sampler, comprising a sampling head (1) and a main unit (2), characterized in that: The sampling head (1) includes a TSP cutter (11), a PM cutter (12) and a cutter base (13) arranged sequentially from top to bottom. The upper end surface of the PM cutter (12) at the connection of the outer shell is provided with an upward protruding lip (121), and the upper end surface of the cutter base (13) at the connection of the outer shell is provided with an upward protruding lip (131). The lower port of the TSP cutter (11) is mounted on the first lip (121), and the TSP cutter (11) and the PM cutter (12) are magnetically fixed to each other by the magnetic structure (3). The lower port of the PM cutter (12) is mounted on the second lip (131), and the PM cutter (12) and the cutter base (13) are magnetically fixed to each other by the magnetic structure (3). The magnetic structure (3) includes an upper magnetic column (31) and a lower magnetic column (32) that can be magnetically connected to the upper magnetic column (31). The magnetic structure (3) is distributed in a ring at equal intervals around the vertical axis of the sampling head (1). The upper magnetic column (31) is fixed on the lower end face of the TSP cutter (11) and the PM cutter (12) respectively and is flush with the lower end face. The lower magnetic column (32) is fixed on the upper end face of the connection between the PM cutter (12) and the cutter base (13). A sealing ring (4) is provided on the upper surface of the connection between the PM cutter (12) and the cutter base (13). The sealing ring (4) has a reserved hole. The lower magnetic column (32) is installed through the reserved hole of the sealing ring (4) and is flush with the upper surface of the sealing ring (4).

2. An air particulate matter sampler according to claim 1, characterized in that: Both the upper magnetic post (31) and the upper magnetic post (31) are T-shaped, and the reserved hole of the sealing ring (4) is a T-shaped hole with a matching size.

3. An air particulate matter sampler according to claim 1, characterized in that: The sealing ring (4) is respectively fitted onto lip one (121) and lip two (131). The inner wall of the sealing ring (4) is provided with positioning tooth groove (41), and the outer wall surfaces of lip one (121) and lip two (131) are provided with grooves that are compatible with the positioning tooth groove (41).

4. An air particulate matter sampler according to claim 1, characterized in that: The outer shells of the TSP cutter (11), PM cutter (12) and cutter base (13) are all provided with anti-slip strips (123).

5. An air particulate matter sampler according to claim 4, characterized in that: The anti-slip strips (123) are distributed in a position corresponding to the magnetic structure (3).

6. An air particulate matter sampler according to claim 1, characterized in that: The sealing ring (4) is a rubber ring.

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