CN202757806U - Locking device used for sampling tube - Google Patents
Locking device used for sampling tube Download PDFInfo
- Publication number
- CN202757806U CN202757806U CN201220413294.7U CN201220413294U CN202757806U CN 202757806 U CN202757806 U CN 202757806U CN 201220413294 U CN201220413294 U CN 201220413294U CN 202757806 U CN202757806 U CN 202757806U
- Authority
- CN
- China
- Prior art keywords
- locking device
- link
- short tube
- set nut
- rubber sealing
- 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 - Lifetime
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Abstract
The utility model relates to a locking device used for a sampling tube. The locking device comprises a locking nut (1) and a flange plate (2), wherein a short tube (3) is welded in the center of the flange plate, the outer wall of the short tube (3) is in a stair shape in an axial direction, the end with a small outer diameter of the short tube (3) is a connecting end (4), the outer surface of the connecting end (4) is provided with threads which can be matched with threads of the locking nut (1), the connecting end (4) is provided with a rubber sealing sleeve (5), and one end of the rubber sealing sleeve (5) is embedded in the connecting end (4). The structure resolves the problem that when rain leaks into a station building on rainy days and equipment needs to be overhauled, working staff can simply loosen the locking nut, lift the sampling tube for a certain height and then lock the locking nut. The locking device used for the sampling tube is simple in operation and enables the equipment to be maintained conveniently.
Description
Technical field
The utility model relates to a kind of locking device for sampling pipe, especially a kind of locking device for Atmospheric particulates online automatic monitor sampling pipe.
Background technology
The Atmospheric particulates online automatic monitor is a kind of device for measuring atmosphere PM2.5 or PM10, the Atmospheric particulates online automatic monitor mainly comprises sampling pipe, be installed in cutter, main frame, the aspiration pump of sampling pipe one end, be provided with air intake opening at main frame.Because sampled point must be to local preferably at the outdoor ventilation environmental facies, so general sampled point is selected in the roof, on the roof station is set, and main frame is placed in the station, open a hole at the top of station, an end of sampling pipe is passed the hole directly be connected with the air intake opening of main frame.Cause instrument damage for preventing that the rainy day rainwater from bleeding in the station, usually need near the sealing station perforate.Existing encapsulating method is that a section with sampling pipe directly is fixed in the perforate and uses sealant sealing, and this fixed form sampling pipe when the needs maintenance tool can't move, thereby causes not easy care of instrument.
The utility model content
The purpose of this utility model is to solve sampling pipe can't move and cause the not problem of easy care of instrument, provides a kind of locking device for sampling pipe, so that sampling pipe is movable fixing.
The technical solution adopted in the utility model is: a kind of locking device for sampling pipe, comprise set nut, ring flange, described ring flange central authorities are welded with short tube, described short tube outer wall axially is being step-like, the end that the short tube external diameter is less is link, the link outside surface is provided with the screw thread suitable with the screw thread of set nut, and described link is provided with rubber sealing boot, and an end of rubber sealing boot is embedded in the link.
As further improvement of the utility model, it is characterized in that the inwall of described set nut is tapered, described link inwall is tapered, and there is the taper chamfering at the two ends of described rubber sealing boot, and the chamfering at two ends is suitable with set nut and link respectively.
The beneficial effect that the utility model adopts is: after having adopted this structure, sampling pipe is inserted short tube, tighten set nut, set nut extruding rubber sealing boot makes its radial shrinkage, thereby make fully sealing between sampling pipe, rubber sealing boot and the set nut three, prevented in the rainy day rainwater bleeds station; When needs maintenance instrument, after only needing set nut unclamped, sampling pipe is upwards mentioned behind certain height again with set nut locking, simple to operate, be convenient to the maintenance to instrument.
Description of drawings
Fig. 1 is the utility model schematic diagram.
Shown in the figure: 1 set nut, 2 ring flanges, 3 short tubes, 4 links, 5 rubber sealing boots.
Embodiment
Below in conjunction with Fig. 1, the utility model is described further.
As shown in Figure 1, a kind of locking device for sampling pipe, comprise set nut 1, ring flange 2, described ring flange central authorities are welded with short tube 3, the inwall of described set nut 1 is tapered, described short tube 3 outer walls axially are being step-like, the end that short tube 3 external diameters are less is link 4, described link 4 inwalls are tapered, link 4 outside surfaces are provided with the screw thread suitable with the screw thread of set nut 1, and described link 4 is provided with rubber sealing boot 5, and an end of rubber sealing boot 5 is embedded in the link 4, there is the taper chamfering at the two ends of described rubber sealing boot 5, and the chamfering at two ends is suitable with set nut 1 and link 4 respectively.
The utility model is to use like this: open a suitable hole on the station top; Behind a circle in the ring flange primary coat, with the link of the short tube on the ring flange up, the other end is placed in the hole with fluid sealant, and firmly spinning to fluid sealant is forced out, and waits for sealing glue solidifying; With an end of sampling pipe be fixedly connected with cutter, the other end inserts and to pass rubber sealing boot and insert in the short tube and then stretch in the station and be connected with the air intake opening of main frame, tightens set nut.
After having adopted this structure, sampling pipe is inserted short tube, tighten set nut, set nut extruding rubber sealing boot makes its radial shrinkage, thereby make fully sealing between sampling pipe, rubber sealing boot and the set nut three, prevented in the rainy day rainwater bleeds station; When needs maintenance instrument, after only needing set nut unclamped, sampling pipe is upwards mentioned behind certain height again with set nut locking, simple to operate, be convenient to the maintenance to instrument.
Claims (2)
1. locking device that is used for sampling pipe, it is characterized in that it comprises set nut (1), ring flange (2), described ring flange central authorities are welded with short tube (3), described short tube (3) outer wall axially is being step-like, the end that short tube (3) external diameter is less is link (4), link (4) outside surface is provided with the screw thread suitable with the screw thread of set nut (1), described link (4) is provided with rubber sealing boot (5), and an end of rubber sealing boot (5) is embedded in the link (4).
2. the locking device of described sampling pipe according to claim 1, the inwall that it is characterized in that described set nut (1) is tapered, described link (4) inwall is tapered, there is the taper chamfering at the two ends of described rubber sealing boot (5), and the chamfering at two ends is suitable with set nut (1) and link (4) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220413294.7U CN202757806U (en) | 2012-08-21 | 2012-08-21 | Locking device used for sampling tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220413294.7U CN202757806U (en) | 2012-08-21 | 2012-08-21 | Locking device used for sampling tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202757806U true CN202757806U (en) | 2013-02-27 |
Family
ID=47736978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220413294.7U Expired - Lifetime CN202757806U (en) | 2012-08-21 | 2012-08-21 | Locking device used for sampling tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202757806U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102901656A (en) * | 2012-08-21 | 2013-01-30 | 安徽蓝盾光电子股份有限公司 | Locking mechanism of sampling tube |
| CN104747809A (en) * | 2015-04-22 | 2015-07-01 | 国家电网公司 | Flue gas sampling sealing device |
-
2012
- 2012-08-21 CN CN201220413294.7U patent/CN202757806U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102901656A (en) * | 2012-08-21 | 2013-01-30 | 安徽蓝盾光电子股份有限公司 | Locking mechanism of sampling tube |
| CN104747809A (en) * | 2015-04-22 | 2015-07-01 | 国家电网公司 | Flue gas sampling sealing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130227 |