CN216082407U - Dust sensor with suction-type sampling function - Google Patents

Abstract

The utility model relates to the technical field of dust detection devices, and discloses a dust sensor with a suction type sampling function, which comprises a shell, wherein an air inlet is formed in one end of the shell, a first control assembly matched with the air inlet is arranged in the shell, a moving assembly is arranged at one end, far away from the air inlet, in the shell, and comprises a moving plate, a countersunk hole is formed in the moving plate, a second control assembly is arranged in the countersunk hole, a partition plate located at one side, far away from the air inlet, of the moving plate is fixedly arranged in the shell, and a dust concentration detection piece is fixedly arranged on the partition plate. Compared with the prior art, the utility model has the beneficial effects that: can inhale the casing with the outside air in, realized the local sampling detection to the air, can avoid remaining the air in the past to exert an influence to follow-up detection with the air discharge casing after detecting last time, be favorable to improving the exactness that detects.

Description

Dust sensor with suction-type sampling function

Technical Field

The utility model relates to the technical field of dust detection devices, in particular to a dust sensor with a suction type sampling function.

Background

Dust refers to solid particles suspended in air. The international organization for standardization stipulates that dust is defined as a solid suspension having a particle size of less than 75 μm. The presence of dust in the atmosphere is one of the main causes for maintaining the earth's temperature, and too much or too little dust in the atmosphere can have a catastrophic effect on the environment. However, in life and work, productive dust is a natural enemy of human health and is a major cause of various diseases.

Need use the dust sensor when detecting dust concentration, current dust sensor is direct when using and carries out direct detection in the region mostly to it is too big to detect data fluctuation, and can appear the air residue after detecting at every turn and lead to follow-up testing result inaccurate, is unfavorable for the use.

Disclosure of Invention

The present invention is directed to a dust sensor with a suction-type sampling function, so as to solve the problems mentioned in the background art.

In order to achieve the purpose, the utility model provides the following technical scheme:

the utility model provides a dust sensor with suction-type sampling function, includes the casing, the inlet port has been seted up to casing one end, is provided with the first control assembly that uses with the inlet port cooperation in the casing, the one end of keeping away from the inlet port in the casing is provided with the removal subassembly, and the removal subassembly includes the movable plate, and the counter sink has been seted up on the movable plate, be provided with the second control assembly in the counter sink, fixed mounting has the baffle that is located the movable plate and keeps away from inlet port one side in the casing, and fixed mounting has dust concentration detection spare on the baffle.

As a further scheme of the utility model: the first control assembly comprises a guide post, the guide post is fixedly installed in the shell and is provided with a plurality of groups, a first baffle matched with the air inlet hole for use is installed on the guide post in a sliding mode, the surface of the first baffle far away from the air inlet hole is fixedly provided with a first elastic piece distributed around the guide post, and one end, far away from the first baffle, of the first elastic piece is fixedly connected with the end of the guide post.

As a further scheme of the utility model: the movable assembly comprises a telescopic piece, the telescopic piece is fixedly installed in the shell, the output end of the telescopic piece penetrates through the partition plate and is in sliding sealing connection with the partition plate, the output end of the telescopic piece extends into the countersunk hole and is fixedly connected with the movable plate, and the outer side surface of the movable plate is in sliding connection with the inner wall of the shell.

As a further scheme of the utility model: the second control assembly comprises a mounting plate, the mounting plate is fixedly mounted in the countersunk hole, a sliding rod penetrating through the mounting plate is slidably mounted on the mounting plate, a second baffle matched with the countersunk hole for use is fixedly mounted at one end of the sliding rod, a second elastic part distributed around the sliding rod is mounted on the surface of the mounting plate close to the second baffle, and one end of the second elastic part far away from the mounting plate is fixedly connected to the second baffle.

As a further scheme of the utility model: the clapboard is communicated with an exhaust pipe with a valve, and the shell is provided with an air outlet for discharging air.

Compared with the prior art, the utility model has the beneficial effects that: can inhale the casing with the outside air in, realized the local sampling detection to the air, can avoid remaining the air in the past to exert an influence to follow-up detection with the air discharge casing after detecting last time, be favorable to improving the exactness that detects.

Drawings

Fig. 1 is a front view of a dust sensor with a suction sampling function.

Fig. 2 is an enlarged view at a1 in fig. 1.

FIG. 3 is a schematic diagram of a second control bureau of a dust sensor with a suction sampling function.

Wherein: 1. a housing; 2. a partition plate; 3. an air inlet; 4. a guide post; 5. a first spring; 6. a first baffle plate; 7. moving the plate; 8. a countersunk hole; 9. mounting a plate; 10. a slide bar; 11. a second spring; 12. a second baffle; 13. a dust concentration sensor; 14. an electric telescopic rod; 15. an exhaust pipe; 16. a first control assembly; 17. a second control assembly; 18. and moving the assembly.

Detailed Description

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 by those of ordinary skill in the art through specific situations.

The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

Referring to fig. 1-3, a structure diagram of a dust sensor with a suction-type sampling function according to an embodiment of the present invention includes a housing 1, an air inlet 3 is formed at one end of the housing 1, a first control assembly 16 used in cooperation with the air inlet 3 is disposed in the housing 1, a moving assembly 18 is disposed at one end of the housing 1 away from the air inlet 3, the moving assembly 18 includes a moving plate 7, the moving plate 7 is disposed with a countersunk hole 8, a second control assembly 17 is disposed in the countersunk hole 8, a partition plate 2 located at one side of the moving plate 7 away from the air inlet 3 is fixedly disposed in the housing 1, and a dust concentration detecting element is fixedly disposed on the partition plate 2.

In practical application of the embodiment of the present invention, the housing 1 is installed at the detection position, the moving plate 7 is driven by the moving assembly 18 to move in a direction away from one side of the air inlet 3, at this time, the counter bore 8 is sealed by the second control assembly 17, so as to extrude the air in the housing 1, the air in the housing 1 is reduced to form a negative pressure region, so that the external air pushes the first control assembly 16 to move and enter the housing 1, so as to suck the external air into the housing 1, thereby realizing local sampling detection of the air, when the moving plate 7 stops moving, the first control assembly 16 is restored to the closed state, then the moving assembly 18 drives the moving plate 7 to move to the original position, at this time, the space between the moving plate 7 and the air inlet 3 is reduced, the air pressure is increased, so as to push the moving plate 17 to flow to the other side of the moving plate 7, the second control assembly 17 is closed after the moving plate 7 stops moving, dust concentration in the casing 1 is detected through dust concentration detection piece this moment, detects the completion back, can be with the air escape casing 1 after last time detection when breathing in once more, avoids the last time to remain the air and to subsequent detection production influence, is favorable to improving the exactness that detects.

In an example of the present invention, the dust concentration detector is the dust concentration sensor 13, but may be other components capable of detecting the dust concentration, and the dust concentration can be detected by the dust concentration sensor 13 with respect to the sucked air.

As shown in fig. 1, as a preferred embodiment of the present invention, the first control assembly 16 includes a guide post 4, the guide post 4 is fixedly installed in the housing 1 and is provided with a plurality of sets, a first baffle 6 used in cooperation with the air inlet 3 is installed on the guide post 4 in a sliding manner, a surface of the first baffle 6 away from the air inlet 3 is fixedly provided with a first elastic member distributed around the guide post 4, and one end of the first elastic member away from the first baffle 6 is fixedly connected with an end of the guide post 4.

The embodiment of the utility model provides a when practical application, when casing 1 internal pressure reduces, thereby the outside air promotes first baffle 6 and removes and compress first elastic component and can get into casing 1 in, when casing 1 internal pressure is the same with the external world, thereby promote first baffle 6 and casing 1 in close contact with and seal inlet port 3 under the effect of first elastic component.

In an example of the present invention, the first elastic member is a first spring 5, but may be other elastic members, and the first spring 5 applies pressure to the first baffle 6 to control the closing and opening of the air inlet 3.

As shown in fig. 1-3, as a preferred embodiment of the present invention, the moving assembly 18 includes an expansion member, the expansion member is fixedly installed in the casing 1, an output end of the expansion member passes through the partition plate 2 and is connected with the partition plate 2 in a sliding and sealing manner, an output end of the expansion member extends into the counterbore 8 and is fixedly connected with the moving plate 7, and an outer side surface of the moving plate 7 is connected with an inner wall of the casing 1 in a sliding manner.

The second control assembly 17 comprises a mounting plate 9, the mounting plate 9 is fixedly mounted in the countersunk hole 8, a sliding rod 10 penetrating through the mounting plate 9 is slidably mounted on the mounting plate 9, a second baffle plate 12 matched with the countersunk hole 8 for use is fixedly mounted at one end of the sliding rod 10, a second elastic part distributed around the sliding rod 10 is fixedly mounted on the surface of the mounting plate 9 close to the second baffle plate 12, and one end of the second elastic part far away from the mounting plate 9 is fixedly connected to the second baffle plate 12.

The clapboard 2 is communicated with an exhaust pipe 15 with a valve, and the shell 1 is provided with an air outlet for discharging air.

The embodiment of the utility model provides a when in actual application, drive movable plate 7 through the watering spare and remove, when movable plate 7 moves to inlet port 3 one side, space through between movable plate 7 and the inlet port 3 reduces this moment, thereby the air pressure increase promotes second baffle 12 and tensile second elastic component, and then the air can flow to the opposite side of movable plate 7, when movable plate 7 stops, make second baffle 12 get back to original position closed counter sink 8 under the effect of second elastic component, when movable plate 7 moves to keeping away from inlet port 3 one side, counter sink 8 is in the closed condition this moment, can inhale the casing 1 with the outside air through inlet port 3 in, the air that the previous time detected in the casing 1 of movable plate 7 promotion simultaneously passes through blast pipe 15 and leaves casing 1, avoid the previous time to remain the air and produce the influence to follow-up detection, be favorable to improving the exactness of detection.

In an example of this utility model, the second elastic component is second spring 11, and certainly also can be other elastic parts that have, thereby exert pulling force to second baffle 12 through second spring 11 and control opening and closing of counter sink 8, the extensible member is electric telescopic handle 14, and certainly also can be other parts that can initiatively alternate length, thereby it gets into and discharges casing 1 to drive movable plate 7 through electric telescopic handle 14 and remove control air.

Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims (5)

1. The utility model provides a dust sensor with suction-type sampling function, includes the casing, its characterized in that, the inlet port has been seted up to casing one end, is provided with the first control assembly who uses with the inlet port cooperation in the casing, the one end of keeping away from the inlet port in the casing is provided with the removal subassembly, and the removal subassembly includes the movable plate, and the countersunk hole has been seted up on the movable plate, be provided with the second control assembly in the countersunk hole, fixed mounting has the baffle that is located the movable plate and keeps away from inlet port one side in the casing, and fixed mounting has dust concentration detection spare on the baffle.

2. The dust sensor with the suction type sampling function according to claim 1, wherein the first control assembly comprises a guide post, the guide post is fixedly installed in the housing and provided with a plurality of groups, a first baffle matched with the air inlet is installed on the guide post in a sliding mode, a first elastic member distributed around the guide post is fixedly installed on the surface of the first baffle far away from the air inlet, and one end, far away from the first baffle, of the first elastic member is fixedly connected with the end of the guide post.

3. The dust sensor with suction-type sampling function according to claim 1, wherein the moving assembly comprises a telescopic member, the telescopic member is fixedly installed in the housing, an output end of the telescopic member penetrates through the partition plate and is in sliding sealing connection with the partition plate, an output end of the telescopic member extends into the counterbore and is fixedly connected with the moving plate, and an outer side surface of the moving plate is in sliding connection with an inner wall of the housing.

4. The dust sensor with the suction type sampling function according to claim 3, wherein the second control assembly comprises a mounting plate, the mounting plate is fixedly mounted in the countersunk hole, a sliding rod penetrating through the mounting plate is slidably mounted on the mounting plate, a second baffle plate used in cooperation with the countersunk hole is fixedly mounted at one end of the sliding rod, a second elastic member distributed around the sliding rod is fixedly mounted on the surface of the mounting plate close to the second baffle plate, and one end, far away from the mounting plate, of the second elastic member is fixedly connected to the second baffle plate.

5. The dust sensor with the suction-type sampling function as claimed in claim 1, wherein the partition plate is communicated with an exhaust pipe with a valve, and the housing is provided with an air outlet for discharging air.

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