Explosion-proof structure of dust sampler

Abstract

The utility model discloses an explosion-proof structure of dust sampler, including shell and gas flowmeter, the inside of shell is fixedly connected with the fixed plate, the bottom of fixed plate is fixedly connected with the exhaust fan, the upper surface of fixed plate is fixedly connected with a plurality of first support rod, the top end of a plurality of first support rod is fixedly connected with the box body, and the top end of the box body is fixedly connected with the gas flowmeter. The top end and the bottom end of the gas flowmeter are communicated with the box body and the air inlet end of the exhaust fan respectively, an upper cover is arranged on the top of the shell, a plurality of second supporting rods are fixedly connected to the bottom of the upper cover, a box cover is fixedly connected between the second supporting rods, and the box cover makes contact with the box body. According to the exhaust fan, dust in air entering the exhaust fan can be filtered, meanwhile, a worker can conveniently clean or replace the filtering cotton, and the box cover and the box body can be connected more tightly through the first sealing ring.

Description

TECHNICAL FIELD

[0001] The utility model relates to a dust sampler technical field especially relates to a dust sampler's explosion -proof structure. BACKGROUND

[0002] Dust sampler is a kind of portable appliance in dust air collection dust sample, widely used in disease prevention, environmental monitoring, labor protection, railway and building material department's health monitoring and evaluation, is used to measure the average concentration of dust in the air in production team workplace.

[0003] Through the retrieval, the patent for grant announcement No.CN207662664U discloses a kind of dust sampler, the sealing strip is arranged at the opening of inner box, can reduce dust, dust etc. into inner box, can also play the effect of waterproof simultaneously, trace dust into the box in detection process will enter into the air extractor, long-term use can affect the normal work of air extractor, there is security risk. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the shortcomings in prior art, and proposes a kind of dust sampler's explosion -proof structure.

[0005] To achieve the above object, the utility model adopts the following technical scheme:

[0006] A kind of dust sampler's explosion -proof structure, including shell and gas flowmeter, the inside fixedly connected with fixed plate of shell, the bottom of fixed plate is fixedly connected with air extractor, the upper surface of fixed plate is fixedly connected with multiple first support rods, the top of multiple first support rods is fixedly connected with box body, and the top and bottom of gas flowmeter are communicated with the air inlet end of box body and air extractor respectively, the top of shell is equipped with upper cover, the bottom of upper cover is fixedly connected with multiple second support rods, multiple second support rods are fixedly connected with box cover between, and box cover is in contact with box body, the inside of upper cover is equipped with connecting groove, first connecting pipe is equipped in connecting groove, and first connecting pipe is fixed with box cover, the top of first connecting pipe is fixedly connected with sampling head, the inner wall of box body is fixedly connected with frame, and filter cotton is arranged above frame.

[0007] As further scheme of the utility model, the multiple side inner walls of box body are all equipped with second back type groove, and second back type groove is equipped with second sealing ring.

[0008] As further scheme of the utility model, second sealing ring is in contact with filter cotton.

[0009] As further scheme of the utility model, the top of box body is equipped with multiple first back type groove, and first back type groove is equipped with first sealing ring.

[0010] As a further scheme of the utility model, the first sealing ring is in contact with the box cover.

[0011] As a further scheme of the utility model, the second connecting pipe is communicated with one end of the air outlet of the air extractor, and the other end of the second connecting pipe penetrates through the shell.

[0012] The utility model discloses beneficial effects are:

[0013] 1. The utility model discloses a filter cotton is set, the dust in the air that enters the air extractor is filtered, avoids the dust from entering the air extractor and long -term use to exist security risk, makes the air extractor more durable, improves the service life of the air extractor.

[0014] 2. The utility model discloses a box cover and upper cover are used in cooperation, and the box cover is separated with the box body conveniently for staff, makes filter cotton move out from the box body, and then the filter cotton is cleaned or replaced conveniently for staff, improves the convenience of device.

[0015] 3. The utility model discloses a second sealing ring makes filter cotton be used for the connection between box body more closely, and first sealing ring makes the connection between box cover and box body more closely, improves the sealing effect of device. DRAWINGS

[0016] Fig. 1 It is the three-dimensional structure schematic diagram of the explosion -proof structure of dust sampler that the utility model proposes;

[0017] Fig. 2 It is the internal structure schematic diagram of the explosion -proof structure of dust sampler that the utility model proposes;

[0018] Fig. 3 It is the partial explosion structure schematic diagram of the explosion -proof structure of dust sampler that the utility model proposes.

[0019] In the drawing: 1, shell;2, first connecting pipe;3, sampling head;4, fixed plate;5, first support rod;6, gas flowmeter;7, box body;8, box cover;9, second support rod;10, air extractor;11, second connecting pipe;12, filter cotton;13, first back groove;14, first sealing ring;15, second back groove;16, second sealing ring;17, frame. SPECIFIC IMPLEMENTATION

[0020] The technical solutions in the embodiments of the present utility model will be clearly and completely described in the embodiments of the present utility model in combination with the drawings in the embodiments of the present utility model, and the described embodiments are only part of the embodiments of the present utility model, rather than all the embodiments of the present utility model, and other embodiments obtained by those skilled in the art without creative labor on the basis of the embodiments in the present utility model all belong to the protection scope of the present utility model.

[0021] With reference to Figs. 1-3 The dust sampler explosion-proof structure, including casing 1 and gas flow meter 6, gas flow meter 6 detects the flow of gas in the device, the inside of casing 1 is fixed with fixed plate 4 through bolt, the bottom of fixed plate 4 is fixed with suction fan 10 through bolt, the upper surface of fixed plate 4 is fixed with a plurality of first support rod 5 through bolt, the top of a plurality of first support rod 5 is fixed with box body 7 through bolt, and the top and bottom of gas flow meter 6 are communicated with the air inlet end of box body 7 and suction fan 10 respectively, the top of casing 1 is equipped with upper cover, the bottom of upper cover is fixed with a plurality of second support rod 9 through bolt, a plurality of second support rod 9 is fixed with box cover 8 through bolt, and box cover 8 is in contact with box body 7, when gas flow meter 6 detects that the flow is small, filter cotton 12 is blocked, the staff pulls the upper cover upwards, makes second support rod 9 drive box cover 8 to move upwards and separate from box body 7, then removes filter cotton 12 from box body 7, and then the staff is convenient to clean or replace filter cotton 12, the inside of upper cover is provided with connecting groove, the connecting groove is equipped with first connecting pipe 2, and the first connecting pipe 2 is fixed with box cover 8, the top of first connecting pipe 2 is fixed with sampling head 3 through bolt, the inner wall of box body 7 is fixed with frame 17 through bolt, the top of frame 17 is equipped with filter cotton 12, suction fan 10 makes the outside air enter the inside of box body 7 through sampling head 3 and first connecting pipe 2, at this time, filter cotton 12 filters the air in dust, makes the filtered air enter suction fan 10 through gas flow meter 6, and is discharged through second connecting pipe 11.

[0022] In the present utility model, it should be pointed out that the plurality of inner walls of box body 7 are provided with second back-shaped grooves 15, the second back-shaped grooves 15 are equipped with second sealing rings 16, the second back-shaped grooves 15 can position the second sealing rings 16, the second sealing rings 16 are in contact with filter cotton 12, the second sealing rings 16 make filter cotton 12 connect more closely between box body 7, the top of box body 7 is provided with a plurality of first back-shaped grooves 13, the first back-shaped grooves 13 are equipped with first sealing rings 14, the first sealing rings 14 are in contact with box cover 8, the first sealing rings 14 make box cover 8 connect more closely between box body 7, one end of suction fan 10 air outlet is communicated and fixed with second connecting pipe 11, and one end of second connecting pipe 11 passes through casing 1.

[0023] Working principle: when the dust sampling is needed, the air pump 10 is started, the external air enters into the box body 7 through the sampling head 3 and the first connecting pipe 2, at this time, the filter cotton 12 filters the air in the dust, the filtered air enters into the air pump 10 through the gas flow meter 6, and is discharged through the second connecting pipe 11, meanwhile, the gas flow meter 6 detects the flow of the gas of the device, when the flow is small, the filter cotton 12 is blocked, the worker pulls the upper cover upward, the second supporting rod 9 drives the box cover 8 to move upward and separate from the box body 7, then the filter cotton 12 is removed from the box body 7, thereby the worker can clean or replace the filter cotton 12.

[0024] In addition, the terms "mounting", "setting", "connecting", "sleeving" should be understood broadly. For example, it can be fixed connection, detachable connection, or integral structure; it can be mechanical connection or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by the person skilled in the art according to the specific situation.

Claims

1. An explosion-proof structure of a dust sampler comprising a housing (1) and a gas flow meter (6), characterized by, The inside of the shell (1) is fixedly connected with a fixed plate (4), the bottom of the fixed plate (4) is fixedly connected with an air extractor (10), the upper surface of the fixed plate (4) is fixedly connected with a plurality of first support rods (5), the top ends of the plurality of first support rods (5) are fixedly connected with a box body (7), and the top end and the bottom end of the gas flow meter (6) are respectively communicated with the box body (7) and the air inlet end of the air extractor (10), the top of the shell (1) is provided with an upper cover, the bottom of the upper cover is fixedly connected with a plurality of second support rods (9), the plurality of second support rods (9) are fixedly connected with a box cover (8) between them, and the box cover (8) is in contact with the box body (7), a connecting groove is formed in the inside of the upper cover, a first connecting pipe (2) is arranged in the connecting groove, and the first connecting pipe (2) is fixed with the box cover (8), the top end of the first connecting pipe (2) is fixedly connected with a sampling head (3), the inner wall of the box body (7) is fixedly connected with a frame (17), and the upper portion of the frame (17) is provided with filter cotton (12).

2. The explosion-proof structure of a dust sampler according to claim 1, wherein The plurality of inner walls of the box body (7) are all provided with second return grooves (15), and the second return grooves (15) are provided with second sealing rings (16).

3. The explosion-proof structure of a dust sampler according to claim 2, wherein The second sealing ring (16) is in contact with the filter cotton (12).

4. The explosion-proof structure of a dust sampler according to claim 1, wherein The top of the box body (7) is provided with a plurality of first return grooves (13), and the first return grooves (13) are provided with first sealing rings (14).

5. The explosion-proof structure of a dust sampler according to claim 4, wherein The first sealing ring (14) is in contact with the box cover (8).

6. The explosion-proof structure of a dust sampler according to claim 1, wherein One end of the air outlet of the air extractor (10) is fixedly connected with a second connecting pipe (11), and one end of the second connecting pipe (11) penetrates through the shell (1).

Images