CN212510532U - Telescopic gas collecting hood - Google Patents
Telescopic gas collecting hood Download PDFInfo
- Publication number
- CN212510532U CN212510532U CN202020842501.5U CN202020842501U CN212510532U CN 212510532 U CN212510532 U CN 212510532U CN 202020842501 U CN202020842501 U CN 202020842501U CN 212510532 U CN212510532 U CN 212510532U
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- CN
- China
- Prior art keywords
- expansion joint
- connecting plate
- collecting hood
- gas collecting
- fixing nut
- 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
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 16
- 239000010959 steel Substances 0.000 claims abstract description 16
- 238000009434 installation Methods 0.000 claims abstract description 6
- 238000007789 sealing Methods 0.000 claims description 15
- 238000004873 anchoring Methods 0.000 claims description 8
- 229910001220 stainless steel Inorganic materials 0.000 claims description 7
- 239000010935 stainless steel Substances 0.000 claims description 7
- 230000002708 enhancing effect Effects 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 230000009975 flexible effect Effects 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 41
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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Abstract
The utility model discloses a telescopic gas collecting hood, which mainly comprises a steel hanger, a connecting plate, an expansion joint and a gas collecting hood; one end of the steel hanger is arranged on the top floor slab, and the other end of the steel hanger is fixedly connected with the connecting plate; the connecting plate is provided with a through hole for mounting a detector, and the through hole is positioned in the middle of the connecting plate; connecting holes with threads for installation are formed in the side face of the connecting plate, the side face of the upper end and the lower end of the expansion joint and the side face of the upper end of the gas collecting hood, and the connecting holes are uniformly and correspondingly distributed; the upper end of the expansion joint is fixed with the connecting plate through a screw or a rivet, and the lower end of the expansion joint is fixedly connected with the upper end of the gas collecting hood through a screw or a rivet. The utility model has the advantages of the expansion joint of the cover body that increases has increased the flexibility of gas collecting channel in other words, when the building height is higher, can open the length of control expansion joint through the anchor assembly adjustment of expansion joint both sides to reach flexible effect. The specific operation is determined according to the field situation.
Description
Technical Field
The utility model relates to a gas collecting channel field especially relates to a retractable gas collecting channel.
Background
In a large commercial project, reserved gas is considered in places with catering, and the air tightness of the gas environment is the biggest problem. According to the requirements of town gas design code GB50028, commercial gas appliances are installed in special rooms with good ventilation. Aiming at the problem of mounting gas in a closed room, an alarm control system (a safety system consisting of a combustible gas detector, an incomplete combustion detector, a combustible gas alarm controller, an emergency cut-off device, an exhaust device and the like) is often seen in gas design.
Commercial buildings tend to have high story heights, typically between 4.5 and 6 meters. According to the technical regulation of urban gas alarm control system CJJ/T146, when the gas source is gas with relative density less than 1 and the vertical distance between the released source and the ceiling exceeds 4 meters, a gas collecting hood or a layered detector is arranged. According to the specification requirements: the vertical distance between the fuel gas release source and the ceiling exceeds 4 meters, and a gas collecting hood is additionally arranged or a combustible gas detector is arranged at one position. From an economic perspective, the cost of adding a gas collecting hood is lower.
According to CJJ/T146 specification requirements: when the gas-collecting hood is arranged, the gas-collecting hood is preferably arranged 4 meters above the release source, the area of the gas-collecting hood is not less than 1 square meter, the height of the skirt edge is not less than 0.1 meter, and the detector is arranged in the gas-collecting hood.
The traditional gas-collecting hood is an integral plate and is formed by simple rolling and anchoring. In actual construction, the steel hanger and the expansion bolt are fixed at the bottom of the floor slab, and a combustible gas detector is arranged in the steel hanger and the expansion bolt. The disadvantages are as follows: this way lacks the flexibility, if meet the floor height when higher, pipeline vertically and horizontally staggered in the furred ceiling, and the kind is numerous and diverse, and the selection of gallows position is difficult. Even if an ideal position can be installed, if the distance between the gas collecting hood and the gas release source is ensured only by depending on the length of the rigid hanging bracket, the installation is obviously not practical. Accordingly, further improvements and improvements are needed in the art.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art not enough, provide a retractable gas collecting channel.
The purpose of the utility model is realized through the following technical scheme:
a telescopic gas-collecting hood for gas-burning stove is composed of steel hanger, connecting plate, expansion joint and gas-collecting hood. One end of the steel hanger is installed on the top floor slab, and the other end of the steel hanger is fixedly connected with the connecting plate. The connecting plate is provided with a through hole for mounting a detector, and the through hole is positioned in the middle of the connecting plate. The side of connecting plate, the last lower extreme side of expansion joint and gas collecting channel upper end side all are equipped with the screwed connecting hole of establishing that is used for the installation, the even and mutual corresponding distribution of connecting hole. The upper end of the expansion joint is fixed with the connecting plate through a screw or a rivet, and the lower end of the expansion joint is fixedly connected with the upper end of the gas collecting hood through a screw or a rivet.
As the preferred scheme of the utility model, the expansion joint adopts the design of stainless steel many wave bands formula expansion joint structure.
Furthermore, an anchoring piece used for adjusting and fixing the expansion amount of the expansion joint is further arranged on the expansion joint. The anchoring member includes a first fixing nut, a second fixing nut, and an adjusting screw. And the first fixing nut is arranged on the outer side surface of the top of the expansion joint and is fixedly connected with the expansion joint. And the second fixing nut is arranged on the outer side surface of the bottom of the expansion joint and is fixedly connected with the expansion joint. The adjusting screw is provided with positive and negative threads and is respectively connected with the first fixing nut and the second fixing nut which are positioned at the upper side and the lower side, the first fixing nut and the second fixing nut are close to or far away from each other by rotating the adjusting screw, and the expansion joint is shortened or extended.
Furthermore, the adjusting screw rod is also provided with an adjusting section which is convenient to rotate. The adjusting section is positioned in the middle of the adjusting screw rod, and the cross section of the adjusting section is polygonal.
As the utility model discloses a preferred scheme, the anchor assembly is established to 2 to 4 groups, along circumferencial direction evenly distributed around the expansion joint.
Furthermore, a gasket used for enhancing the sealing effect of the connecting plate and the detector is further arranged on the connecting plate. The gasket is made of rubber materials, is arranged on the through hole and is connected with the detector in a sealing mode.
As the preferred proposal of the utility model, the connecting plate, the expansion joint and the gas collecting hood all adopt the design of square structure.
Furthermore, sealing rings for enhancing the sealing performance are arranged on the connecting plate, the expansion joint and the air collecting cover. The sealing rings are positioned at the connecting positions between the connecting plate and the expansion joint and between the expansion joint and the gas-collecting hood.
Compared with the prior art, the utility model discloses still have following advantage:
(1) the utility model provides a retractable gas discharge cover has increased the rubber packing ring, ensures that the leakproofness of gas discharge cover is good.
(2) The utility model provides a retractable gas collecting channel has increased square stainless steel connecting plate, and this board utilizes steel bracket and expansion bolts to fix to locate the installation detector in the centre of a circle.
(3) The utility model provides a retractable gas collecting channel has increased square stainless steel expansion joint (multiband), and both sides set up the flexible anchor assembly of ability control expansion joint, and the quantity of expansion joint is customized according to the current situation. The square stainless steel connecting plate is connected with the square stainless steel expansion joint by rivets.
(4) The utility model provides a retractable gas collecting channel forms for the system of corrosion resistant plate book, and the area is not less than 1 square meter, and the shirt rim height is not less than 0.1 m. The cover body expansion joint is connected with the cover body by rivets.
(5) The utility model provides an expansion joint of the cover body that retractable gas collecting channel increases has increased the flexibility of gas collecting channel in other words, when the building height is higher, can be through the anchor assembly adjustment of expansion joint both sides, opens the length of control expansion joint to reach flexible effect. The specific operation is determined according to the field situation.
Drawings
Fig. 1 is a schematic structural view of the retractable gas collecting hood provided by the present invention.
Fig. 2 is a front view, a side view, a sectional view and a top view of the connection plate provided by the present invention.
Fig. 3 is a front view, a top view and a side view of the expansion joint provided by the present invention.
Fig. 4 is a front view and a side view of a gas collecting channel provided by the present invention.
Fig. 5 is a top view of the retractable gas collecting hood provided by the present invention.
The reference numerals in the above figures illustrate:
1-detector, 2-gasket, 3-connecting plate, 4-expansion joint, 5-gas collecting hood, 6-steel hanger, 7-expansion bolt and 8-through hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer and clearer, the present invention will be further described with reference to the accompanying drawings and examples.
Example 1:
as shown in fig. 1 to 5, the present embodiment discloses a retractable gas collecting hood, which mainly includes a steel hanger 6, a connecting plate 3, an expansion joint 4, and a gas collecting hood 5. One end of the steel hanger 6 is installed on the top floor slab through an expansion bolt 7, and the other end of the steel hanger is fixedly connected with the connecting plate 3. The detector is characterized in that a through hole 8 for installing the detector 1 is formed in the connecting plate 3, and the through hole 8 is located in the middle of the connecting plate 3. The side of connecting plate 3, the last lower extreme side of expansion joint 4 and the side of gas collecting channel 5 upper end all are equipped with the connecting hole of establishing the screw thread that is used for the installation, the even and mutual corresponding distribution of connecting hole. The upper end of the expansion joint 4 is fixed with the connecting plate 3 through a screw or a rivet, and the lower end is fixedly connected with the upper end of the gas collecting hood 5 through a screw or a rivet.
As the preferred scheme of the utility model, the expansion joint 4 adopts the 4 structural designs of stainless steel multiband formula expansion joint.
Furthermore, an anchoring part for adjusting and fixing the expansion amount of the expansion joint 4 is also arranged on the expansion joint 4. The anchoring member includes a first fixing nut, a second fixing nut, and an adjusting screw. The first fixing nut is installed on the outer side face of the top of the expansion joint 4 and is fixedly connected with the expansion joint 4. And the second fixing nut is arranged on the outer side surface of the bottom of the expansion joint 4 and is fixedly connected with the expansion joint 4. The adjusting screw is provided with positive and negative threads and is respectively connected with the first fixing nut and the second fixing nut which are positioned at the upper side and the lower side, the first fixing nut and the second fixing nut are close to each other or are far away from each other by rotating the adjusting screw, and the expansion joint 4 is shortened or extended.
Furthermore, the adjusting screw rod is also provided with an adjusting section which is convenient to rotate. The adjusting section is positioned in the middle of the adjusting screw rod, and the cross section of the adjusting section is polygonal.
As the preferred scheme of the utility model, the anchor assembly is set to 2 to 4 groups, along the circumferencial direction evenly distributed around expansion joint 4.
Further, a gasket 2 for enhancing the sealing effect between the connecting plate 3 and the detector 1 is further arranged on the connecting plate 3. The gasket 2 is made of rubber materials, is arranged on the through hole 8 and is connected with the detector 1 in a sealing mode.
As the preferred scheme of the utility model, connecting plate 3, expansion joint 4 and gas collecting channel 5 all adopt square structural design.
Furthermore, sealing rings for enhancing the sealing performance are arranged on the connecting plate 3, the expansion joint 4 and the air collecting cover 5. The sealing rings are positioned at the connecting positions between the connecting plate 3 and the expansion joint 4 and between the expansion joint 4 and the gas-collecting hood 5.
The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be equivalent replacement modes, and all are included in the scope of the present invention.
Claims (8)
1. A telescopic gas collecting hood is characterized by comprising a steel hanger, a connecting plate, an expansion joint and a gas collecting hood; one end of the steel hanger is arranged on the top floor slab, and the other end of the steel hanger is fixedly connected with the connecting plate; the connecting plate is provided with a through hole for mounting a detector, and the through hole is positioned in the middle of the connecting plate; connecting holes with threads for installation are formed in the side face of the connecting plate, the side face of the upper end and the lower end of the expansion joint and the side face of the upper end of the gas collecting hood, and the connecting holes are uniformly and correspondingly distributed; the upper end of the expansion joint is fixed with the connecting plate through a screw or a rivet, and the lower end of the expansion joint is fixedly connected with the upper end of the gas collecting hood through a screw or a rivet.
2. The telescoping gas skirt of claim 1, wherein said expansion joint is a stainless steel multi-band expansion joint design.
3. The retractable gas collecting hood as claimed in claim 1, wherein the expansion joint is further provided with an anchoring member for adjusting and fixing the expansion amount of the expansion joint; the anchoring piece comprises a first fixing nut, a second fixing nut and an adjusting screw rod; the first fixing nut is arranged on the outer side surface of the top of the expansion joint and is fixedly connected with the expansion joint; the second fixing nut is arranged on the outer side face of the bottom of the expansion joint and is fixedly connected with the expansion joint; the adjusting screw is provided with positive and negative threads and is respectively connected with the first fixing nut and the second fixing nut which are positioned at the upper side and the lower side, the first fixing nut and the second fixing nut are close to or far away from each other by rotating the adjusting screw, and the expansion joint is shortened or extended.
4. The retractable gas collecting hood as claimed in claim 3, wherein the adjusting screw is further provided with an adjusting section for facilitating rotation; the adjusting section is positioned in the middle of the adjusting screw rod, and the cross section of the adjusting section is polygonal.
5. The telescoping gas skirt according to claim 3, wherein said anchoring elements are provided in groups of 2 to 4, circumferentially evenly distributed around the expansion joint.
6. The retractable gas collecting hood as claimed in claim 1, wherein the connecting plate is further provided with a gasket for enhancing the sealing effect between the connecting plate and the detector; the gasket is made of rubber materials, is arranged on the through hole and is connected with the detector in a sealing mode.
7. The telescoping gas skirt of claim 1, wherein said connecting plate, expansion joint, and skirt are of a square design.
8. The retractable gas collecting hood as claimed in claim 1, wherein the connecting plate, the expansion joint and the gas collecting hood are provided with sealing rings for enhancing the sealing performance; the sealing rings are positioned at the connecting positions between the connecting plate and the expansion joint and between the expansion joint and the gas-collecting hood.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020842501.5U CN212510532U (en) | 2020-05-19 | 2020-05-19 | Telescopic gas collecting hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020842501.5U CN212510532U (en) | 2020-05-19 | 2020-05-19 | Telescopic gas collecting hood |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212510532U true CN212510532U (en) | 2021-02-09 |
Family
ID=74381537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020842501.5U Expired - Fee Related CN212510532U (en) | 2020-05-19 | 2020-05-19 | Telescopic gas collecting hood |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212510532U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114192537A (en) * | 2021-11-23 | 2022-03-18 | 中国葛洲坝集团生态环境工程有限公司 | Smoke collecting device for excavation surface of elemental phosphorus-containing polluted soil |
-
2020
- 2020-05-19 CN CN202020842501.5U patent/CN212510532U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114192537A (en) * | 2021-11-23 | 2022-03-18 | 中国葛洲坝集团生态环境工程有限公司 | Smoke collecting device for excavation surface of elemental phosphorus-containing polluted soil |
| CN114192537B (en) * | 2021-11-23 | 2023-09-19 | 葛洲坝集团生态环保有限公司 | Smoke collecting equipment for excavation surface of soil polluted by elemental phosphorus |
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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 |
Granted publication date: 20210209 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |