CN209927551U

CN209927551U - Explosion-proof type dust sampler

Info

Publication number: CN209927551U
Application number: CN201920299573.7U
Authority: CN
Inventors: 安大力; 江晶; 梁成山
Original assignee: Shenyang Natural Da Environmental Engineering Consulting Co Ltd
Current assignee: Shenyang Natural Da Environmental Engineering Consulting Co Ltd
Priority date: 2019-03-08
Filing date: 2019-03-08
Publication date: 2020-01-10
Anticipated expiration: 2029-03-08

Abstract

The utility model discloses an explosion-proof dust sampler, which comprises a main body, wherein a handle is fixedly connected above the main body, a sleeve is inserted into one side of the interior of the main body, and the interior of the sleeve is communicated with the interior of the main body; the telescopic inside is equipped with first pivot, first pivot is rotated through first bearing and sleeve and is linked to each other, the outer wall bilateral symmetry rigid coupling of first pivot has the brush, and the brush contacts with the sleeve. This explosion-proof type dust sampler, through the cooperation of joint and wire, can examine time measuring in the airtight space of environment dust concentration too high, with main part ground connection, the condition that produces static and lead to deflagration when avoiding detecting appears, greatly increased the security performance, cooperation through gland and torsion spring, can be automatic with the sleeve closure after finishing detecting, avoid the dust deposit on telescopic inner wall, avoid the influence accuracy of testing result next time, staff's use has been made things convenient for.

Description

Explosion-proof type dust sampler

Technical Field

The utility model relates to a dust sampler technical field specifically is an explosion-proof type dust sampler.

Background

The dust sampler is a portable device for collecting dust samples in dust-containing air. The dust concentration in the air is measured, and besides the requirement of safety production management, the dust concentration measuring instrument also aims to provide scientific basis for researching measures of dust prevention, dust fall and dust removal. The dust measurement by using the sampler is a well-known method with higher accuracy. It extensively applies to disease prevention, environmental monitoring, labor protection, safety supervision, military affairs, scientific research teaching, metallurgy, petrochemical, railway, the health monitoring and the evaluation of departments such as building materials, be exclusively used in the average concentration of dust in the air of survey production team workplace, current sample thief, when staff's use equipment detects in the airtight space of environment dust concentration too high, can lead to the appearance of detonation condition because equipment produces static when detecting, greatly reduced the security performance, when examining simultaneously, the dust can be attached to on telescopic inner wall, the operation of cleaning equipment that needs the staff to waste time and energy after every use, the staff uses and is not convenient.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an explosion-proof type dust sample thief to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: an explosion-proof dust sampler comprises a main body, wherein a handle is fixedly connected above the main body, a sleeve is inserted into one side of the interior of the main body, and the interior of the sleeve is communicated with the interior of the main body;

the fan blade type rotating sleeve is characterized in that a first rotating shaft is arranged inside the sleeve and is rotationally connected with the sleeve through a first bearing, brushes are symmetrically and fixedly connected to two sides of the outer wall of the first rotating shaft and are in contact with the sleeve, fan blades are fixedly sleeved in the middle of the outer wall of the first rotating shaft, glands are symmetrically arranged on the upper side and the lower side of one side, far away from a main body, inside the sleeve and are rotationally connected with the sleeve through a pin shaft, a torsion spring is fixedly connected to one side, close to the main body, of each gland, and the torsion spring is fixedly connected with the sleeve;

the improved structure of the wire spring comprises a main body, wherein a first groove is formed in the lower portion of one side, far away from a sleeve, of the inner portion of the main body, a second rotating shaft is arranged in the first groove, the second rotating shaft is connected with the first groove in a rotating mode through a second bearing, a wire shaft is fixedly sleeved in the middle of the outer wall of the second rotating shaft, a wire is wound on the outer wall of the wire shaft, a joint is inserted into one side, far away from the sleeve, of the main body, two ends of the wire are electrically connected with the wire shaft and the joint respectively, a spring is fixedly sleeved on the lower portion of the outer wall of the second rotating shaft and fixedly connected with the first groove, a ratchet wheel is fixedly sleeved on the upper portion of the outer wall of the second rotating shaft, a clamping block is clamped on the upper portion of the ratchet wheel, a second groove is formed in the upper portion of the first groove, a compression spring is fixedly connected to the, and the pressing plate is in sliding clamping connection with the second groove, and the upper part of the clamping block penetrates through the first groove and is fixedly connected with the pressing plate.

Compared with the prior art, the beneficial effects of the utility model are that: this explosion-proof type dust sampler, cooperation through joint and wire, can examine time measuring in the airtight space of environment dust concentration too high, with main part ground connection, the condition that produces static and lead to deflagration appears when avoiding detecting, greatly increased the security performance, cooperation through gland and torsion spring, can be automatic with the sleeve closure after finishing detecting, avoid the dust deposit on telescopic inner wall, avoid the accuracy of the next testing result of influence, cooperation through flabellum and brush, can automatic clearance telescopic inner wall when extracting gas, avoid the dust to adhere to on telescopic inner wall, the operation of staff's clearance equipment after using at every turn has been saved, staff's use has been made things convenient for.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic top view of the second shaft, ratchet and spool of fig. 1 according to the present invention.

In the figure: 1. the main part, 2, handle, 3, first bearing, 4, torsion spring, 5, round pin axle, 6, gland, 7, first pivot, 8, flabellum, 9, brush, 10, sleeve, 11, wire, 12, second pivot, 13, spool, 14, ratchet, 15, first recess, 16, joint, 17, fixture block, 18, clamp plate, 19, second recess, 20, compression spring, 21, second bearing, 22, clockwork spring.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution: an explosion-proof dust sampler comprises a main body 1, a handle 2 is fixedly connected above the main body 1, a sleeve 10 is inserted into one side inside the main body 1, the inside of the sleeve 10 is communicated with the inside of the main body 1, a worker can take the main body 1 with the handle 2 to switch on an external power supply of the main body 1, the main body 1 extracts air in an environment to be detected through an air extracting device inside the main body 1 and detects the air, and the air enters the main body 1 along a through hole on the left side inside the sleeve 10;

the inside of the sleeve 10 is provided with a first rotating shaft 7, the first rotating shaft 7 is rotatably connected with the sleeve 10 through a first bearing 3, two sides of the outer wall of the first rotating shaft 7 are symmetrically and fixedly connected with brushes 9, the brushes 9 are contacted with the sleeve 10, the middle of the outer wall of the first rotating shaft 7 is fixedly sleeved with fan blades 8, the upper side and the lower side of one side of the inside of the sleeve 10 far away from the main body 1 are symmetrically provided with glands 6, the glands 6 are rotatably connected with the sleeve 10 through a pin shaft 5, one side of the glands 6 close to the main body 1 is fixedly connected with a torsion spring 4, and the torsion spring 4 is fixedly connected with the sleeve 10, when air suction detection is carried out, the glands 6 are rotated and opened around the pin shaft 5 to overcome the pressure of the torsion spring 4 under the action of negative pressure, so that gas enters the inside of the main body 1 along a through hole inside the sleeve 10 for detection, the fan blade 8 drives the brush 9 to rotate around the first bearing 3 through the first rotating shaft 7, the brush 9 brushes dust attached to the inner wall of the sleeve 10 for cleaning, dust accumulation is prevented from influencing the next detection result, and the gland 6 is pushed to rotate and close around the pin shaft 5 under the pressure of the torsion spring 4 after the detection is stopped;

a first groove 15 is formed in the lower portion of one side, away from the sleeve 10, of the interior of the main body 1, a second rotating shaft 12 is arranged in the first groove 15, the second rotating shaft 12 is rotatably connected with the first groove 15 through a second bearing 21, a bobbin 13 is fixedly sleeved in the middle of the outer wall of the second rotating shaft 12, a wire 11 is wound on the outer wall of the bobbin 13, a connector 16 is inserted into one side, away from the sleeve 10, of the main body 1, two ends of the wire 11 are electrically connected with the bobbin 13 and the connector 16 respectively, the connector 16 is made of a metal conductive material, a clockwork spring 22 is fixedly sleeved on the lower portion of the outer wall of the second rotating shaft 12, the clockwork spring 22 is fixedly connected with the first groove 15, a ratchet 14 is fixedly sleeved on the upper portion of the outer wall of the second rotating shaft 12, a clamping block 17 is clamped on the upper portion of the ratchet 14, a second groove 19 is formed on the upper portion of the first groove 15, one side that main part 1 was kept away from to clamp plate 18 runs through second recess 19, and clamp plate 18 and the slip joint of second recess 19, first recess 15 is run through to the top of fixture block 17 and clamp plate 18 is fixed continuous, when detecting in the too high enclosure space of environment dust concentration, the staff will connect 16 and pull out with ground contact, thereby make and connect 16 and pass through wire 11 with main part 1 ground connection, avoid producing static, spool 13 drives ratchet 14 through second pivot 12 and rotates around second bearing 21, then it fixes to be blocked by fixture block 17, after the detection, the staff upwards stimulates clamp plate 18, make fixture block 17 and ratchet 14 separate, it rotates to stimulate second pivot 12 under the pulling force of clockwork spring 22, second pivot 12 drives spool 13 and rotates and rolls up wire 11 and pack up.

In this embodiment, when in use, a worker connects the external power supply of the main body 1, the air draft device inside the main body 1 starts to draw air for detection, the gland 6 rotates around the pin 5 to overcome the pressure of the torsion spring 4 and opens under the action of negative pressure, so that the air enters the main body 1 along the through hole inside the sleeve 10 for detection, meanwhile, the fan blade 8 is blown by wind power to rotate, the fan blade 8 drives the brush 9 to rotate around the first bearing 3 through the first rotating shaft 7, the brush 9 brushes dust attached to the inner wall of the sleeve 10 for cleaning, thereby avoiding dust accumulation from influencing the next detection result, after the detection is stopped, the gland 6 is pushed under the pressure of the torsion spring 4 to rotate around the pin 5 for closing, when a closed space with too high environmental dust concentration is detected, the worker pulls the joint 16 out to contact with the ground, thereby enabling the joint 16 to ground the main body 1 through the wire 11, the spool 13 drives the ratchet 14 to rotate around the second bearing 21 through the second rotating shaft 12 to avoid generating static electricity, then the spool is clamped and fixed by the clamping block 17, after detection is finished, a worker pulls the pressing plate 18 upwards to separate the clamping block 17 from the ratchet 14, the second rotating shaft 12 is pulled to rotate under the pulling force of the spring 22, and the second rotating shaft 12 drives the spool 13 to rotate to roll and retract the wire 11.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An explosion-proof type dust sampler, includes main part (1), its characterized in that: a handle (2) is fixedly connected above the main body (1), a sleeve (10) is inserted into one side of the interior of the main body (1), and the interior of the sleeve (10) is communicated with the interior of the main body (1);

the novel fan is characterized in that a first rotating shaft (7) is arranged inside the sleeve (10), the first rotating shaft (7) is rotatably connected with the sleeve (10) through a first bearing (3), brushes (9) are symmetrically and fixedly connected to two sides of the outer wall of the first rotating shaft (7), the brushes (9) are in contact with the sleeve (10), fan blades (8) are fixedly sleeved in the middle of the outer wall of the first rotating shaft (7), glands (6) are symmetrically arranged on the upper side and the lower side of one side, far away from the main body (1), of the inside of the sleeve (10), the glands (6) are rotatably connected with the sleeve (10) through a pin shaft (5), a torsion spring (4) is fixedly connected to one side, close to the main body (1), of the glands (6), and the torsion spring (4) is fixedly connected with the sleeve (10;

the improved structure of the wind power generator is characterized in that a first groove (15) is formed in one side lower portion, far away from a sleeve (10), of the interior of a main body (1), a second rotating shaft (12) is arranged in the first groove (15), the second rotating shaft (12) is rotationally connected with the first groove (15) through a second bearing (21), a spool (13) is fixedly sleeved in the middle of the outer wall of the second rotating shaft (12), a wire (11) is wound on the outer wall of the spool (13), a connector (16) is inserted into one side, far away from the sleeve (10), of the main body (1), two ends of the wire (11) are electrically connected with the spool (13) and the connector (16) respectively, a spring (22) is fixedly sleeved on the outer wall lower portion of the second rotating shaft (12), the spring (22) is fixedly connected with the first groove (15), a ratchet wheel (14) is fixedly sleeved on the outer wall upper portion of the second rotating shaft (12), and a clamping block (17) is clamped on, second recess (19) have been opened to the top of first recess (15), the inside top rigid coupling of second recess (19) has compression spring (20), the below rigid coupling of compression spring (20) has clamp plate (18), one side that main part (1) was kept away from in clamp plate (18) runs through second recess (19), and clamp plate (18) and second recess (19) slip joint, the top of fixture block (17) runs through first recess (15) and clamp plate (18) is fixed continuous.