CN210154996U - Dust concentration measuring instrument - Google Patents
Dust concentration measuring instrument Download PDFInfo
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- CN210154996U CN210154996U CN201920924146.3U CN201920924146U CN210154996U CN 210154996 U CN210154996 U CN 210154996U CN 201920924146 U CN201920924146 U CN 201920924146U CN 210154996 U CN210154996 U CN 210154996U
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- sleeve
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- outer side
- dust concentration
- concentration measuring
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Abstract
The utility model discloses a dust concentration measuring instrument, which comprises a machine box, wherein a transparent display screen window, a circuit board and a sealing cavity are arranged in the machine box, the lower part of the machine box is connected with a pipe sleeve, a detection rod is arranged in the pipe sleeve, the upper end of the detection rod passes through the sealing cavity to be electrically connected with the circuit board, and an insulating sleeve is arranged between the outer side of the detection rod and the inner side of the pipe sleeve; the outer side of the insulating sleeve is further provided with a sealing ring, the inner side of the sealing ring is in interference connection with the outer side of the insulating sleeve, the outer side of the sealing ring is in interference connection with the inner side of the pipe sleeve, a sealing sleeve is further arranged at the lower end of the sealing ring, the lower ends of the detection rod and the insulating sleeve penetrate through the sealing sleeve, the outer side of the part, penetrating through the sealing sleeve, of the insulating sleeve is in interference connection with the inner side of the sealing sleeve, and the upper portion of the sealing sleeve is connected with the lower. The utility model provides a dust concentration measuring apparatu, its adopt the design that detects and show the integration, it is convenient to dismantle, and the testing result is accurate, easily adjusts.
Description
Technical Field
The utility model relates to a dust concentration detection technical field, in particular to dust concentration measuring apparatu.
Background
Dust concentration detector is called dust meter for short, also called dust concentration measuring instrument or dust concentration tester, mainly used for detecting the dust concentration in the ambient air, the kind of dust meter divide into: the online continuous monitoring dust meter, the portable dust meter and the like are widely applied to disease prevention and control centers, mines, metallurgy, power plants, chemical manufacturing, health supervision, environmental protection, environmental online monitoring and the like. The dust detector can be divided into: an online dust detector and a portable dust detector; the measurement principle is divided into: the device comprises a weighing method dust detector, a laser dust detector, an electrostatic dust detector and the like, wherein the electrostatic dust detector utilizes the charge property of solid-phase particles to finally obtain two-phase flow parameters through measurement and analysis of electrostatic signals. The online dust detector can be divided into the following parts according to the field use position: a pipeline dust detector and a space dust detector; the existing pipeline dust detector adopts the design of separating a detection device and a control display device, can not directly observe the dust concentration and is not easy to disassemble.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model discloses a dust concentration measuring instrument, which comprises a machine box, wherein a transparent display screen window, a circuit board and a sealing cavity are arranged in the machine box, the lower part of the machine box is connected with a pipe sleeve, a detection rod is arranged in the pipe sleeve, the upper end of the detection rod passes through the sealing cavity and is electrically connected with the circuit board, and an insulating sleeve is arranged between the outer side of the detection rod and the inner side of the pipe sleeve; the outer side of the insulating sleeve is further provided with a sealing ring, the inner side of the sealing ring is in interference connection with the outer side of the insulating sleeve, the outer side of the sealing ring is in interference connection with the inner side of the pipe sleeve, a sealing sleeve is further arranged at the lower end of the sealing ring, the lower ends of the detection rod and the insulating sleeve penetrate through the sealing sleeve, the outer side of the part, penetrating through the sealing sleeve, of the insulating sleeve is in interference connection with the inner side of the sealing sleeve, and the upper portion of the sealing sleeve is connected with the lower.
Preferably, the outer side of the upper part of the sealing sleeve is connected with the inner side of the lower part of the pipe sleeve through a first thread.
Preferably, the outer side of the lower portion of the sealing sleeve is further provided with a flange, and the outer side of the lower portion of the sealing sleeve is connected with the inner side of the flange through second threads.
Preferably, the flange is provided with a threaded hole, and in the process of detecting dust, the flange and the flange on the dust pipeline to be detected can be fixed by screws through the threaded hole, and then the detection rod is inserted into the pipeline to be detected in the dust concentration.
Preferably, the outer side of the upper part of the pipe sleeve is connected with the inner side of the lower part of the machine box through a third thread.
Preferably, the outer side of the pipe sleeve is uniformly provided with a plurality of protruding parts, so that the pipe sleeve is easy to hold, on the one hand, the contact area between the pipe sleeve and the outside is increased, and the heat dissipation of the whole measuring instrument is facilitated.
The detection rod is an electrostatic sensor.
The utility model has the advantages that:
(1) the utility model provides a dust concentration measuring apparatu, its adopt the design that detects and show the integration, it is convenient to dismantle, and the testing result is accurate, easily adjusts.
(2) Through setting up insulating cover, sealing washer and seal cover, with the seal cover screw in pipe sleeve, interference connection between insulating cover and the sealing washer has strengthened the leakproofness of probe rod, has avoided external environment to the interference of dust concentration measurement result, has improved dust concentration measurement's accuracy.
(3) The pipe sleeve and the machine box, and the pipe sleeve and the sealing sleeve are in threaded connection, so that the pipe sleeve is easy to disassemble.
(4) The flange is arranged on the lower side of the sealing sleeve, so that the dust concentration measuring instrument is fixed in the actual detection process.
(5) The convex part on the pipe sleeve is beneficial to hand holding, the contact area of the pipe sleeve and the outside is increased, and the heat dissipation of the whole measuring instrument is facilitated.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor.
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic side view of the internal structure of the present invention;
FIG. 3 is an enlarged view of part A of the present invention;
fig. 4 is a partial enlarged view of B of the present invention.
1-a machine box; 11-a transparent display screen window; 12-a circuit board; 13 sealing the cavity; 2-pipe sleeve; 21-a third thread; 22-a boss; 3-a feeler lever; 4-an insulating sleeve; 5-sealing ring; 6-sealing sleeve; 61-a first thread; 62-a second thread; 7-a flange; 71-threaded hole.
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.
It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.
As shown in fig. 1-2, a dust concentration measuring instrument comprises a case 1, wherein a transparent display screen window 11, a circuit board 12 and a sealed cavity 13 are arranged in the case 1, a pipe sleeve 2 is connected to the lower part of the case, a detection rod 3 is arranged in the pipe sleeve 2, the upper end of the detection rod 3 penetrates through the sealed cavity 13 to be electrically connected with the circuit board 12, and an insulating sleeve 4 is arranged between the outer side of the detection rod 3 and the inner side of the pipe sleeve 2; the outer side of the insulating sleeve 4 is further provided with a sealing ring 5, the inner side of the sealing ring 5 is in interference connection with the outer side of the insulating sleeve 4, the outer side of the sealing ring 5 is in interference connection with the inner side of the pipe sleeve 2, the lower end of the sealing ring 5 is further provided with a sealing sleeve 6, the lower ends of the detection rod 3 and the insulating sleeve 4 penetrate through the sealing sleeve 6, the insulating sleeve 4 penetrates through the outer side of the sealing sleeve 6 to be in interference connection with the inner side of the sealing sleeve 6, and the upper portion of the sealing sleeve 6 of the insulating sleeve.
The outer side of the upper part of the sealing sleeve 6 is connected with the inner side of the lower part of the pipe sleeve 2 through a first thread 61.
The outer side of the lower part of the sealing sleeve 6 is also provided with a flange 7, and the outer side of the lower part of the sealing sleeve 6 is connected with the inner side of the flange 7 through a second thread 62.
Be equipped with screw hole 71 on the flange 7, at the in-process that detects the dust, can be with the screw through screw hole 71 with flange 7 with wait to detect the flange on the dust pipeline fixed back, with the probe rod 3 go deep into the pipeline of waiting to detect dust concentration.
The outer side of the upper part of the pipe sleeve 2 is connected with the inner side of the lower part of the machine box 1 through a third thread 21.
The outer side of the pipe sleeve 2 is uniformly provided with a plurality of convex parts 22, so that the pipe sleeve is easy to hold by hand on one hand, and the contact area of the pipe sleeve 2 and the outside is increased on the other hand, thereby being beneficial to the heat dissipation of the whole measuring instrument.
The detection rod 3 is an electrostatic sensor.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention. In addition, the technical solutions between the various embodiments can be combined with each other, but must be based on the realization of those skilled in the art; when the technical solutions are contradictory or cannot be combined, the combination of the technical solutions should be considered to be absent, and is not within the protection scope of the present invention.
Claims (6)
1. A dust concentration measuring instrument is characterized in that: the detection device comprises a machine box, wherein a transparent display screen window, a circuit board and a sealing cavity are arranged in the machine box, the lower part of the machine box is connected with a pipe sleeve, a detection rod is arranged in the pipe sleeve, the upper end of the detection rod penetrates through the sealing cavity to be electrically connected with the circuit board, and an insulating sleeve is arranged between the outer side of the detection rod and the inner side of the pipe sleeve; the outer side of the insulating sleeve is further provided with a sealing ring, the inner side of the sealing ring is in interference connection with the outer side of the insulating sleeve, the outer side of the sealing ring is in interference connection with the inner side of the pipe sleeve, a sealing sleeve is further arranged at the lower end of the sealing ring, the lower ends of the detection rod and the insulating sleeve penetrate through the sealing sleeve, the outer side of the part, penetrating through the sealing sleeve, of the insulating sleeve is in interference connection with the inner side of the sealing sleeve, and the upper portion of the sealing sleeve is connected with the lower.
2. The dust concentration measuring instrument according to claim 1, wherein: the outer side of the upper portion of the sealing sleeve is connected with the inner side of the lower portion of the pipe sleeve through first threads.
3. The dust concentration measuring instrument according to claim 2, wherein: the outer side of the lower portion of the sealing sleeve is further provided with a flange, and the outer side of the lower portion of the sealing sleeve is connected with the inner side of the flange through second threads.
4. The dust concentration measuring instrument according to claim 3, wherein: and the flange is provided with a threaded hole.
5. The dust concentration measuring instrument according to claim 1, wherein: the outer side of the upper part of the pipe sleeve is connected with the inner side of the lower part of the case through a third thread.
6. The dust concentration measuring instrument according to claim 1, wherein: the outer side of the pipe sleeve is uniformly provided with a plurality of convex parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920924146.3U CN210154996U (en) | 2019-06-19 | 2019-06-19 | Dust concentration measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920924146.3U CN210154996U (en) | 2019-06-19 | 2019-06-19 | Dust concentration measuring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210154996U true CN210154996U (en) | 2020-03-17 |
Family
ID=69763430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920924146.3U Active CN210154996U (en) | 2019-06-19 | 2019-06-19 | Dust concentration measuring instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210154996U (en) |
-
2019
- 2019-06-19 CN CN201920924146.3U patent/CN210154996U/en active Active
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