CN209690271U - Protective device for gas concentration detecting head - Google Patents
Protective device for gas concentration detecting head Download PDFInfo
- Publication number
- CN209690271U CN209690271U CN201920325358.XU CN201920325358U CN209690271U CN 209690271 U CN209690271 U CN 209690271U CN 201920325358 U CN201920325358 U CN 201920325358U CN 209690271 U CN209690271 U CN 209690271U
- Authority
- CN
- China
- Prior art keywords
- charge
- general pipeline
- head
- protective device
- gas concentration
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000001681 protective effect Effects 0.000 title claims abstract description 18
- 239000000523 sample Substances 0.000 claims abstract description 14
- 238000010521 absorption reaction Methods 0.000 claims description 8
- 239000002274 desiccant Substances 0.000 claims description 5
- 229920000742 Cotton Polymers 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 235000012773 waffles Nutrition 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 6
- 238000005259 measurement Methods 0.000 abstract description 2
- 238000001514 detection method Methods 0.000 description 5
- 238000004026 adhesive bonding Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000003466 welding Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model relates to the protection technique fields of detector, more particularly to the protective device for gas concentration detecting head, the existing single channel of protective device is for gas to pass through can not accurate measurements gas concentration, protective device for gas concentration detecting head, including outer housing, the outer housing includes probe set casing, gas collecting pipe and dust-proof head, the gas collecting pipe, which includes that general pipeline and general pipeline is coconnected, multiple to be in charge of, the general pipeline is far from the end connection probe set casing being in charge of, each dust-proof head of end connection being in charge of far from general pipeline, increase gas collecting point, it detects more representative, there is good development prospect in the protection technique field of detector.
Description
Technical field
The utility model relates to the protection technique fields of detector, more particularly to the protection for gas concentration detecting head
Device.
Background technique
In explosion-proof battery truck or other explosion-proof mobile type electric equipment, it to be usually equipped with imflammable gas detection control system
It unites, includes burnable gas sensor in system.
Since the quality of imflammable gas is generally all heavier than air, burnable gas sensor is all mounted on mobile device
One lower position might have rainwater infiltration when mobile device is when travelling in the rain or crossing the section of excess surface water
On the sensing element of burnable gas sensor.
The sensing element of burnable gas sensor must be contacted with external air, could accurately be found out in air environment
The concentration of imflammable gas, and sensing element is very accurate and sensitive.The rainwater entered on detecting head sensing element can be made
At the pollution, damage and failure of element, to influence the normal use of equipment.Thus, it is necessary to take measures to prevent combustibility
Rainwater enters in detecting head and leads to its damage detection of gas control system when in use.
202770826 U of Chinese utility model patent application documents CN discloses a kind of gas concentration detecting head protection dress
It sets comprising an isolating cap, the top of the isolating cap are fixed at the periphery of detecting head, and the lower part of the isolating cap is equipped with connection
The extraneous tortuous passageway with detecting head.The periphery of the isolating cap is further provided with the annular rain cover throughout through-hole.The rain cover
Below lid set drain cap, the drain cap be equipped with facilitate rainwater be discharged drainage hole, avoid contacting rain water gas concentration detect
Head.
The utility model when preventing contacting rain water from popping one's head in due to having added isolating cap outside detecting head, gas can only from channel into
Enter detecting head, the area of probe contacts air is caused to reduce, single channel is for gas to pass through can not accurate measurements gas concentration.
Utility model content
For above situation, for the defect for overcoming the prior art, the utility model is provided for gas concentration detecting head
Protective device, solution gas is single through tube contacts probe path, causes gas concentration judgement not have representativeness, accuracy is deposited
The deviation the problem of.
Its technical solution is, for the protective device of gas concentration detecting head, including outer housing, the outer housing, which is located at, to be visited
It outside gauge head, plays a protective role to detecting head, prevents detecting head by rain erosion, the outer housing includes for by outer housing
The gas collecting pipe and gas collection tube of the probe set casing, connection detecting head and the outside air that connect with detecting head are far from detection
The dust-proof head that one end of head is used to prevent sundries from entering gas collecting pipe, the fixed valve jacket of the probe is on detecting head, the spy
Head set casing is spliced by two pieces of identical arc panels, and junction is arranged gasket and is used for waterproof, and two parts pass through screw
It is fixed, be wrapped on detecting head, the gas collecting pipe include general pipeline and general pipeline it is coconnected it is multiple be in charge of, it is each it is described be in charge of for
Bending tube, moisture are not easily accessible, and the general pipeline is far from the end connection probe set casing being in charge of, between the set casing and general pipeline
Be detachably fixed connection by screw, it is each it is described be in charge of the end far from general pipeline and connect dust-proof head, the dust-proof head and be in charge of work
Dynamic connection.
Further, the general pipeline is cylindricality straight tube, is provided on the general pipeline multiple for being in charge of the through-hole of connection, institute
It states through-hole wall and is provided with internal screw thread, it is each described to be in charge of one end outer wall being connected to general pipeline and be provided with and screw-internal thread fit on through-hole
The external screw thread used is in charge of between general pipeline and is connect by being threadedly engaged to be detachably fixed, and the through hole gluing is for sealing
Rubber sheet gasket, avoid general pipeline and it is each be in charge of between tie point gas leakage cause gas concentration judgement inaccuracy, general pipeline with point
Reach between pipe is maintained at tighten screw thread after be in charge of one end of the air inlet for entering general pipeline for ambient atmos and be located below.
Further, it is each it is described be in charge of become Z-shaped pipe by three sections of cylindric straight tubes splicings, the through-hole is located at the side general pipeline
Wall, it is each it is described be in charge of first be in charge of including what is connect with general pipeline and be in charge of the second of connection with first and be in charge of, described first is in charge of
For the right angle tubular structure for welding together and being interconnected, the corner of right angle cylinder is arc, and described second is in charge of and first
One end end edge for being in charge of connection is provided with the rib that diameter is in charge of diameter mouth size greater than second, and described first is in charge of interior setting
Have a groove with rib cooperation, described second be in charge of cover be in charge of first in and be rotatablely connected by the cooperation of rib and groove,
The rotation being in charge of by second, adjusts the position for being in charge of air inlet, and the range size of the gas concentration detected as needed carries out
Distribution, keeps the accuracy of gas concentration, described first be in charge of and second be in charge of between be provided with gasket, the gasket position
It is in charge of above upper groove in first and is in charge of inner wall gluing with first.
Further, it is each it is described be in charge of for " C " shape curved arc pipe, each through-hole is located at general pipeline bottom edge, each described to divide
Managing one end port connecting with general pipeline is pillar buoy, and the end of the pillar buoy is provided with the first gear that diameter is greater than logical aperture port
First flap is stuck in general pipeline by piece, through-hole, is in charge of end setting and first flap of the same size the outside the through-hole
Two baffles, the first flap are located at general pipeline bottom surface both side with second flap and the bottom surface general pipeline are clipped in the middle, and described
Spacing is consistent with general pipeline bottom thickness between one baffle and second flap, and the baffle being in charge of with general pipeline after installing
Welding, the last process for being welded as processing of the bottom surface general pipeline.
Further, the dust-proof head is located at one end end being respectively in charge of far from general pipeline, each described to be in charge of and dust-proof head connects
One end inner wall connect is provided with internal screw thread, and each dust-proof head outer surface, which is provided with, is in charge of the screw thread that screw-internal thread fit uses,
Plastics waffle slab is provided in each dust-proof head.
Further, each inner wall of being in charge of is provided with moisture absorption layer, and the moisture absorption layer is made of cotton package desiccant, institute
It states moisture absorption layer and avoids detecting head impaired by desiccant adsorbing moisture, even if a small amount of moisture is entered by being in charge of air inlet, also can
It is adsorbed.
The utility model has the technical effect that, by be arranged it is multiple be in communication with the outside be in charge of, change existing detection of gas
The single mode of head sampling, by sample and converge by general pipeline to gas in different direction, gas is taken in increase
The accuracy of concentration, to improve the accuracy that gas detector judges gas concentration, the air inlet position for acquiring gas can
To be adjusted by rotation, multiposition collects gas and carries out that the result that obtains of Concentration Testing is more representative, and the pipeline of bending is opposite
It is not easy than straight tube into water, and the protective device can effectively prevent dust to enter, and a small amount of moisture is adsorbed, practicability
By force.
Detailed description of the invention
Fig. 1 is the overall structure diagram that the utility model has that Z-shaped is in charge of.
Fig. 2 is that the utility model Z-shaped is in charge of structural schematic diagram.
Fig. 3 is the overall structure diagram that the utility model has that " C " shape is in charge of.
Fig. 4 is that the utility model " C " shape is in charge of structural schematic diagram.
Specific embodiment
Below in conjunction with Figure of description, specific embodiment is described in further details.
Embodiment one: being provided by Fig. 1 to Fig. 4, described for the protective device of gas concentration detecting head, including outer housing 1
Outer housing 1 is located at outside detecting head, plays a protective role to detecting head, prevents detecting head by rain erosion, and the outer housing 1 wraps
Include for by outer housing 1 connect with detecting head probe set casing 2, connection detecting head and outside air gas collecting pipe 3 and
The dust-proof head 4 that gas collecting pipe 3 is used to prevent sundries from entering gas collecting pipe 3 far from one end of detecting head, the probe are fixed
2 sets of shell on detecting head, the probe set casing 2 is spliced by two pieces of identical arc panels, junction be arranged gasket use
In waterproof, and two parts are fixed by screw, are wrapped on detecting head, and the gas collecting pipe 3 includes general pipeline 31 and general pipeline 31
It is coconnected it is multiple be in charge of 32, it is each it is described be in charge of 32 for bending tube, moisture is not easily accessible, and the general pipeline 31 is far from the end for being in charge of 32
Portion's connection probe set casing 2, is detachably fixed connection by screw between the set casing 2 and general pipeline 31, it is each described in be in charge of 32
End far from general pipeline 31 connects dust-proof head 4, and the dust-proof head 4 is flexibly connected with being in charge of 32, and the general pipeline 31 is cylindricality straight tube,
Multiple through-holes 33 for being used to be in charge of 32 connections are provided on the general pipeline 31,33 inner wall of through-hole is provided with internal screw thread, each institute
State and be in charge of one end outer wall that 32 are connected to general pipeline 31 and be provided with the external screw thread used with screw-internal thread fit on through-hole, be in charge of 32 with it is total
Be detachably fixed connection by being threadedly engaged between pipe, rubber sheet gasket of the through hole gluing for sealing, avoid general pipeline and
Each tie point gas leakage being in charge of between 32 leads to gas concentration judgement inaccuracy, general pipeline 31 and the reach being in charge of between 32
It is maintained at and is in charge of one end of the air inlet that 32 enter general pipeline 31 for ambient atmos after tightening screw thread and is located below.
Embodiment two: each described to be in charge of 32 and become Z-shaped by three sections of cylindric straight tubes splicings on the basis of an embodiment
Pipe, the through-hole 33 are located at 31 side wall of general pipeline, it is each described in be in charge of 32 include that first connect with general pipeline 31 is in charge of 321 and with first
It is in charge of the second of 321 connections and is in charge of 322, described first to be in charge of 321 be the right angle tubular structure for welding together and being interconnected,
The corner of right angle cylinder be arc, described second be in charge of 322 and first be in charge of 321 connections one end end edge be provided with diameter
It is in charge of the rib 34 of 322 diameter mouth sizes greater than second, described first is in charge of the groove being provided in 321 with rib cooperation, described
Second, which is in charge of 322 sets, is in charge of in 321 first and is rotatablely connected by the cooperation of rib and groove, is in charge of 322 by second
Rotation adjusts the position for being in charge of 32 air inlets, and the range size of the gas concentration detected as needed is distributed, and keeps gas
The accuracy of concentration, described first, which is in charge of 321 and second, is in charge of between 322 and is provided with gasket, and the gasket is located at first
It is in charge of above 321 upper grooves and is in charge of 321 inner wall gluings with first.
Embodiment three: on the basis of an embodiment, it is each it is described be in charge of 32 for " C " shape curved arc pipe, each through-hole 33
31 bottom edge of Yu general pipeline, it is each it is described be in charge of one end port that 32 connect with general pipeline 31 for pillar buoy, the end of the pillar buoy
It is provided with the first flap 35 that diameter is greater than 33 diameter mouth of through-hole, first flap 35 is stuck in general pipeline by through-hole 33, the through-hole 33
External is in charge of end setting and the second flap 36 of the same size of first flap 35, and the first flap is divided with second flap 36
General pipeline bottom surface both side and the bottom surface general pipeline Wei Yu not be clipped in the middle, spacing and total between the first flap 35 and second flap 36
31 bottom thickness of pipe is consistent, and the baffle being in charge of welds after installing with general pipeline, and the bottom surface general pipeline is welded as processing
Last process.
On the basis of embodiment two or three, the dust-proof head 4 is located at and is respectively in charge of 32 one end ends far from general pipeline 31, respectively
Described to be in charge of one end inner wall that 32 connect with dust-proof head 4 and be provided with internal screw thread, each dust-proof 4 outer surface of head, which is provided with, to be in charge of
The screw thread that screw-internal thread fit uses, is provided with plastics waffle slab in each dust-proof head 4, each described to be in charge of 32 inner walls and be provided with
Moisture absorption layer, the moisture absorption layer are made of cotton package desiccant, and the moisture absorption layer avoids detecting head by desiccant adsorbing moisture
It is impaired, even if a small amount of moisture is entered by being in charge of air inlet, can also be adsorbed.
The utility model has the technical effect that, by be arranged it is multiple be in communication with the outside be in charge of, change existing detection of gas
The single mode of head sampling, by sample and converge by general pipeline to gas in different direction, gas is taken in increase
The accuracy of concentration, to improve the accuracy that gas detector judges gas concentration, the air inlet position for acquiring gas can
To be adjusted by rotation, multiposition collects gas and carries out that the result that obtains of Concentration Testing is more representative, and the pipeline of bending is opposite
It is not easy than straight tube into water, and the protective device can effectively prevent dust to enter, and a small amount of moisture is adsorbed, practicability
By force.
The utility model is described in detail above by specific embodiment and embodiment, but these are not structure
At limitations of the present invention.In the case where not departing from the utility model principle, those skilled in the art can also be made
Many modification and improvement, these also should be regarded as the protection scope of the utility model.
Claims (6)
1. being used for the protective device of gas concentration detecting head, including outer housing (1), which is characterized in that the outer housing (1) includes
It pops one's head in set casing (2), gas collecting pipe (3) and dust-proof head (4), the gas collecting pipe (3) include general pipeline (31) and general pipeline
(31) it is coconnected it is multiple be in charge of (32), the general pipeline (31) far from be in charge of (32) end connection probe set casing (2), each institute
State the dust-proof head (4) of end connection for being in charge of (32) separate general pipeline (31).
2. the protective device according to claim 1 for gas concentration detecting head, which is characterized in that the general pipeline (31)
For cylindricality straight tube, be provided on the general pipeline (31) it is multiple for being in charge of the through-holes (33) of (32) connection, in the through-hole (33)
Wall is provided with internal screw thread, each described to be in charge of (32) and be provided with and screw-internal thread fit on through-hole with general pipeline (31) one end outer wall being connected to
The external screw thread used.
3. the protective device according to claim 2 for gas concentration detecting head, which is characterized in that be in charge of described in each
(32) be Z-shaped pipe, the through-hole (33) is located at general pipeline (31) side wall, it is each described in be in charge of (32) include connecting with general pipeline (31)
First is in charge of (321) and is in charge of (321) are connect second with first and be in charge of (322), and described second is in charge of (322) is in charge of with first
(321) one end end edge connected is provided with the rib (34) that diameter is in charge of (322) diameter mouth size greater than second, and described first
It is in charge of the groove being provided in (321) with rib cooperation, described second, which is in charge of (322), covers and be in charge of in (321) and pass through first
The cooperation of rib and groove is rotatablely connected, and described first, which is in charge of (321) and second, is in charge of between (322) and is provided with gasket.
4. the protective device according to claim 2 for gas concentration detecting head, which is characterized in that be in charge of described in each
(32) be " C " shape curved arc pipe, each through-hole (33) is located at general pipeline (31) bottom edge, it is each described in be in charge of (32) and general pipeline (31)
One end port of connection is pillar buoy, and the end of the pillar buoy is provided with the baffle (35) that diameter is greater than through-hole (33) diameter mouth.
5. the protective device according to claim 3 or 4 for gas concentration detecting head, which is characterized in that described dust-proof
Head (4) is located at one end end far from general pipeline (31) of being respectively in charge of (32), each described to be in charge of one end that (32) are connect with dust-proof head (4)
Inner wall is provided with internal screw thread, and each dust-proof head (4) outer surface, which is provided with, is in charge of the screw thread that screw-internal thread fit uses, each described
Plastics waffle slab is provided in dust-proof head (4).
6. the protective device according to claim 3 or 4 for gas concentration detecting head, which is characterized in that each described point
Pipe (32) inner wall is provided with moisture absorption layer, and the moisture absorption layer is made of cotton package desiccant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920325358.XU CN209690271U (en) | 2019-03-14 | 2019-03-14 | Protective device for gas concentration detecting head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920325358.XU CN209690271U (en) | 2019-03-14 | 2019-03-14 | Protective device for gas concentration detecting head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209690271U true CN209690271U (en) | 2019-11-26 |
Family
ID=68604821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920325358.XU Expired - Fee Related CN209690271U (en) | 2019-03-14 | 2019-03-14 | Protective device for gas concentration detecting head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209690271U (en) |
-
2019
- 2019-03-14 CN CN201920325358.XU patent/CN209690271U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191126 |