CN211653831U - Gas suction structure for gas alarm - Google Patents

Abstract

The utility model discloses a gas alarm utensils suction structure, including shell, gas alarm body, motor, flabellum, holding ring and connecting rod, the gas alarm body is installed to shell top inner wall, the probe that is circular form array distribution is installed to gas alarm body outer wall, gas alarm body below is provided with the motor, the flabellum is installed in the rotation of motor lower extreme, the holding ring is gone in the installation of shell lower extreme inner wall, the inside embedding of holding ring is installed and is the filter screen that circular array distributes, the connecting rod that runs through holding ring centre of a circle position department is installed to the flabellum lower extreme, the dust removal pole is installed to the connecting rod lower extreme, the connecting rod upper end is located flabellum lower surface centre of. The utility model discloses an add the motor and drive the flabellum and rotate for the inside speed of outside air entering shell, and the brush can be cleaned the filter screen, ensures the unobstructed of circulation of air.

Description

Gas suction structure for gas alarm

Technical Field

The utility model relates to a gas alarm technical field specifically is a gas alarm utensils suction structure.

Background

The gas alarm is a gas leakage detection alarm instrument. When combustible or toxic gas in the industrial environment leaks and the gas alarm detects that the gas concentration reaches the critical point set by the explosion or toxic alarm, the alarm can send out an alarm signal to remind the user to take safety measures and drive an air exhaust, cutting off and spraying system to prevent explosion, fire and poisoning accidents, thereby ensuring safe production.

However, in the actual use process of the gas alarm, the dispersion speed of the toxic gas depends on the flow speed of air in the dispersion process, and when the air mixed with the toxic gas is in contact with the probe of the gas alarm, if the flow speed is low, the lower part of the concentration of the toxic gas can not react after being in contact with the probe, namely the toxic gas cannot be detected. The existing gas alarm cannot finish the existing problems, cannot increase the contact rate of the outside air and the probe, has the defect that the toxic gas cannot be rapidly detected when the toxic gas is leaked, and easily causes accidents.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a gas alarm utensils suction structure 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: the utility model provides a gas structure of breathing in for gas alarm, includes shell, gas alarm body, motor, flabellum, holding ring and connecting rod, the gas alarm body is installed to shell top inner wall, the probe that is circular form array distribution is installed to gas alarm body outer wall, gas alarm body below is provided with the motor, the flabellum is installed in the rotation of motor lower extreme, the holding ring is installed to shell lower extreme inner wall, the inside embedding of holding ring is installed and is the filter screen that circular array distributes, the connecting rod that runs through holding ring centre of a circle position department is installed to the flabellum lower extreme, the dust removal pole is installed to the connecting rod lower extreme, the connecting rod upper end is located fla.

Preferably, the outer wall of the upper end of the shell is provided with a first through groove distributed in a circular array, and a first protective net is embedded in the first through groove.

Preferably, a second through groove is formed in the outer wall of the lower end of the shell, and a second protective net is embedded in the second through groove.

Preferably, the dust removal rod is located the holding ring below, and the dust removal rod upper surface is provided with the brush, the brush upper end contacts with the filter screen lower surface.

Preferably, the fixing base is connected to the upper end of the motor in a sleeved mode, fixing rods distributed in a circular array mode are installed on the outer wall of the fixing base, and one end of each fixing rod is connected with the inner wall of the shell.

Preferably, the diameter of the inner wall of the lower end of the shell is smaller than that of the inner wall of the upper end of the shell.

Preferably, the rotation radius of the fan blade is the same as the diameter of the outer wall of the filter screen.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a set up the motor and drive the flabellum and rotate, when the flabellum rotated, can be inside the negative pressure that forms in the shell upper end, can lead to the groove with the outside air through the second and inhale inside the shell, can effectively accelerate the contact rate of the probe of outside air and gas alarm body, can effectively improve the purpose that the probe monitored toxic gas's in to the air content. And the filter screen can filter the dust in the outside air, avoids the outside dust to produce the influence to the working effect of probe, and the flabellum is rotating the in-process, can drive the brush of dust removal pole upper surface and rotate, and the brush can clean the filter screen lower surface, avoids after long-time the use, and the lower surface of filter screen can pile up the dust and influence the permeability and the gas permeability of filter screen, and further inside the entering shell that ensures that the outside air can be unobstructed.

Drawings

Fig. 1 is a schematic main sectional structure diagram of the housing of the present invention;

fig. 2 is an enlarged schematic view of the structure a in fig. 1 according to the present invention;

FIG. 3 is a schematic view of a top cross-sectional structure of the upper end of the housing of the present invention;

fig. 4 is a schematic view of the positioning ring of the present invention.

In the figure: 1. a housing; 2. a gas alarm body; 3. a fixed seat; 4. a motor; 5. a fan blade; 6. a probe; 7. a first through groove; 8. a first protection net; 9. fixing the rod; 10. a positioning ring; 11. a second through groove; 12. a second protective net; 13. a dust removal rod; 14. a brush; 15. filtering with a screen; 16. a connecting rod.

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.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" 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 simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 4, the present invention provides an embodiment: the utility model provides a gas alarm utensils structure of breathing in, including shell 1, gas alarm body 2, motor 4, flabellum 5, holding ring 10 and connecting rod 16, gas alarm body 2 is installed to shell 1 top inner wall, gas alarm body 2 outer wall is installed and is the round shape array distribution's probe 6, gas alarm body 2 below is provided with motor 4, as is known by technical personnel in the field, the provision of gas alarm body 2 and motor 4 is common, it all belongs to conventional means or common general knowledge, it is no longer repeated here, technical personnel in the field can carry out arbitrary apolegamy according to its needs or facility. The upper end of the motor 4 is sleeved with a fixed seat 3, the outer wall of the fixed seat 3 is provided with fixed rods 9 distributed in a circular array, one end of each fixed rod 9 is connected with the inner wall of the shell 1, the lower end of the motor 4 is rotatably provided with a fan blade 5, the motor 4 drives the fan blade 5 to rotate, when the fan blade 5 rotates, negative pressure can be formed inside the upper end of the casing 1, external air can be sucked into the casing 1 through the second through groove 11, can effectively accelerate the contact rate of the outside air and the probe 6 of the gas alarm body 2, can effectively improve the purpose that the probe 6 monitors the content of toxic gas in the air, avoids the phenomenon that the air mixed with the toxic gas can not effectively contact with the probe 6 when the air flow speed is slow, and lead to 6 unable to detect toxic gas of probe, and then gas alarm body 2 can't carry out the early warning to produce the accident.

The inner wall of the lower end of the shell 1 is provided with a positioning ring 10, a filter screen 15 distributed in a circular array is embedded in the positioning ring 10, the rotating radius of the fan blade 5 is the same as the diameter of the outer wall of the filter screen 15, the lower end of the fan blade 5 is provided with a connecting rod 16 penetrating through the circle center position of the positioning ring 10, the lower end of the connecting rod 16 is provided with a dust removing rod 13, the upper end of the connecting rod 16 is positioned at the circle center position of the lower surface of the fan blade 5, the dust removing rod 13 is positioned below the positioning ring 10, the upper surface of the dust removing rod 13 is provided with a brush 14, the upper end of the brush 14 is contacted with the lower surface of the filter screen 15, the outer wall of the upper end of the shell 1 is provided with a first through groove 7 distributed in a circular array, a first protective screen 8 is embedded in the first through groove 7, the outer wall of the lower end of the shell 1, avoid inside external debris and the insect gets into shell 1, ensure the normal far-reaching of gas alarm body 2 and motor 4 and change. The inner wall diameter of the lower end of the shell 1 is smaller than the inner wall diameter of the upper end of the shell 1, the filter screen 15 can filter dust in the external air, the external dust is prevented from influencing the working effect of the probe 6, the fan blades 5 rotate in the process, the brush 14 capable of driving the upper surface of the dust removal rod 13 can rotate, the brush 14 can clean the lower surface of the filter screen 15, the lower surface of the filter screen 15 is prevented from being used for a long time, the dust can be accumulated on the lower surface of the filter screen 15, the permeability and the air permeability of the filter screen 15 are influenced, and the external air can be further ensured to be unobstructed.

The working principle is as follows: motor 4 drives flabellum 5 and rotates, when flabellum 5 rotates, can be at the inside negative pressure that forms of 1 upper end of shell, can lead to groove 11 with the outside air through the second and inhale 1 inside the shell, can effectively accelerate the contact rate of outside air and the probe 6 of gas alarm body 2, can effectively improve the purpose that the probe 6 carries out the monitoring to the content of toxic gas in the air, avoid appearing when the air flow speed is slower, the air that is mingled with the toxic gas can not carry out effectual contact with probe 6, and lead to probe 6 unable to detect toxic gas, and then gas alarm body 2 can't carry out the early warning, thereby the production accident. And filter screen 15 can filter the dust in the outside air, avoid the outside dust to produce the influence to the working effect of probe 6, and flabellum 5 is rotating the in-process, can drive the brush 14 of dust removal pole 13 upper surface and rotate, brush 14 can clean filter screen 15 lower surface, avoid after long-time the use, filter screen 15's lower surface can pile up the dust and influence filter screen 15's permeability and gas permeability, further ensure inside outside air can unobstructed entering shell 1.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention 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.

Claims (7)

1. The utility model provides a gas alarm utensils suction structure, includes shell (1), gas alarm body (2), motor (4), flabellum (5), holding ring (10) and connecting rod (16), its characterized in that: gas alarm body (2) are installed to shell (1) top inner wall, gas alarm body (2) outer wall is installed and is probe (6) that circular form array distributes, gas alarm body (2) below is provided with motor (4), motor (4) lower extreme rotates and installs flabellum (5), holding ring (10) are installed to shell (1) lower extreme inner wall, the inside embedding of holding ring (10) is installed and is filter screen (15) that circular array distributes, connecting rod (16) that run through holding ring (10) centre of a circle position department are installed to flabellum (5) lower extreme, dust removal pole (13) are installed to connecting rod (16) lower extreme, connecting rod (16) upper end is located flabellum (5) lower surface centre of a circle position department.

2. The suction structure for a gas alarm according to claim 1, wherein: first logical groove (7) that are circular array and distribute are seted up to shell (1) upper end outer wall, first logical groove (7) inside all imbeds and installs first protection network (8).

3. The suction structure for a gas alarm according to claim 1, wherein: a second through groove (11) is formed in the outer wall of the lower end of the shell (1), and a second protective net (12) is embedded in the second through groove (11).

4. The suction structure for a gas alarm according to claim 1, wherein: dust removal pole (13) are located holding ring (10) below, and dust removal pole (13) upper surface is provided with brush (14), brush (14) upper end contacts with filter screen (15) lower surface.

5. The suction structure for a gas alarm according to claim 1, wherein: the fixing seat (3) is sleeved at the upper end of the motor (4), fixing rods (9) distributed in a circular array are installed on the outer wall of the fixing seat (3), and one ends of the fixing rods (9) are connected with the inner wall of the shell (1).

6. The suction structure for a gas alarm according to claim 1, wherein: the diameter of the inner wall of the lower end of the shell (1) is smaller than that of the inner wall of the upper end of the shell (1).

7. The suction structure for a gas alarm according to claim 1, wherein: the rotating radius of the fan blade (5) is the same as the diameter of the outer wall of the filter screen (15).

Images