CN117140834A - Hard polyurethane spraying heat preservation pipeline head device - Google Patents
Hard polyurethane spraying heat preservation pipeline head device Download PDFInfo
- Publication number
- CN117140834A CN117140834A CN202311384393.6A CN202311384393A CN117140834A CN 117140834 A CN117140834 A CN 117140834A CN 202311384393 A CN202311384393 A CN 202311384393A CN 117140834 A CN117140834 A CN 117140834A
- Authority
- CN
- China
- Prior art keywords
- hard polyurethane
- circular groove
- spraying heat
- polyurethane spraying
- sealing device
- 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.)
- Pending
Links
- 229920002635 polyurethane Polymers 0.000 title claims abstract description 52
- 239000004814 polyurethane Substances 0.000 title claims abstract description 52
- 238000005507 spraying Methods 0.000 title claims abstract description 44
- 238000004321 preservation Methods 0.000 title claims description 12
- 238000007789 sealing Methods 0.000 claims abstract description 59
- 238000005187 foaming Methods 0.000 claims abstract description 26
- 238000009413 insulation Methods 0.000 claims description 19
- 239000007787 solid Substances 0.000 claims description 7
- 238000009423 ventilation Methods 0.000 claims description 6
- 238000009792 diffusion process Methods 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims 7
- 239000000463 material Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
- B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
- B29C44/18—Filling preformed cavities
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
- B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
- B29C44/18—Filling preformed cavities
- B29C44/188—Sealing off parts of the cavities
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/35—Component parts; Details or accessories
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2075/00—Use of PU, i.e. polyureas or polyurethanes or derivatives thereof, as moulding material
Landscapes
- Thermal Insulation (AREA)
Abstract
The application discloses a hard polyurethane spraying heat-insulating pipeline sealing device which comprises a sealing cover, a fixed ring, a circular groove channel, air holes, a screw rod, a clamping arc plate, a hard polyurethane spraying heat-insulating pipeline body and a foaming layer.
Description
Technical Field
The application relates to the technical field of a hard polyurethane spraying heat-insulating pipeline sealing device, in particular to a hard polyurethane spraying heat-insulating pipeline sealing device.
Background
The rigid polyurethane heat-insulating pipe is used as an excellent heat-insulating material, has wider application range, and is widely used for various pipelines such as heat supply, refrigeration, oil transportation, gas transportation and the like due to simple construction and obvious energy-saving and corrosion-preventing effects. The heat-insulating pipeline is widely used for various pipelines such as heat supply, refrigeration, oil transportation, gas transportation and the like, in the processing technology of the heat-insulating pipeline, foaming materials are required to be filled between the inner pipeline and the outer pipeline, and due to the reasons of filling vibration, expansion in the pipeline caused by the temperature generated during filling of the foaming materials and the like, the pipelines are required to be closed to enable the foaming materials to spread and fill in the pipeline, and high-temperature gas in the pipeline is required to be discharged in time, so that the appearance, the service life and the impact strength of the processed heat-insulating pipeline can reach the standards.
Retrieved, publication (bulletin) number: CN108443635a discloses a thermal insulation pipeline sealing device, which relates to the field of thermal insulation pipelines, and comprises a disc-shaped sealing head body, wherein a through hole is arranged at the central position of the sealing head body, a pulling head is arranged on the upper end face of the outer edge of the through hole, four vent holes are formed in the sealing head body at the periphery of the through hole, and a baffle ring is arranged at the lower edge of the sealing head body.
The technical scheme in the application document still has the defects: when the end socket device is in actual use, the end socket device can only plug a heat-insulating pipe with a pipeline caliber, the practicability of the end socket device is affected, the firmness of the end socket device in fixing is insufficient, the end socket device is easy to loosen and fall off when the air is discharged, and the end socket device is not easy to detach after filling is finished.
Disclosure of Invention
The application aims to provide a hard polyurethane spraying heat-insulation pipeline sealing device, which aims to solve the problems in the background technology.
In order to achieve the above purpose, the present application provides the following technical solutions: the utility model provides a stereoplasm polyurethane spraying heat preservation pipeline head device, includes seal head lid, solid fixed ring, circular groove way, bleeder vent, lead screw, centre gripping arc board, stereoplasm polyurethane spraying heat preservation body and foaming layer, be provided with the circular groove way around seal head lid central point department outside diffusion on the seal head lid side, the bleeder vent has been seted up on the circular groove way, gu install solid fixed ring on the seal head lid, threaded hole has been seted up on the solid fixed ring, threaded hole installs the lead screw, the nut is installed to the one end of lead screw, the other end and the centre gripping arc board of lead screw are connected.
Through adopting above-mentioned technical scheme, when installing the seal cover, overlap solid fixed ring on the both ends mouth of stereoplasm polyurethane spraying heat preservation body, according to the pipeline mouth diameter of stereoplasm polyurethane spraying heat preservation body, match the seal cover and go up the circular recess way in the three sets of circular recess ways that set up and align the back, make pipeline mouth wall and the circular recess way of matching agree with, when filling the operation to the foaming layer, the bleeder vent that sets up on the circular recess way communicates with the foaming layer, can carry out the exhaust work, the seal device can seal the stereoplasm polyurethane spraying heat preservation pipeline of different pipeline bore, the practicality of seal device has been improved, make the lead screw rotate through positive and negative rotation nut, because of the screw hole threaded connection of seting up on lead screw and the solid fixed ring, thereby drive the centre gripping arc board of lead screw one end rotation connection reciprocates, two sets of centre gripping arc boards offset with the outer wall of stereoplasm polyurethane spraying heat preservation body, thereby make the seal cover fix in the both ends mouth department of stereoplasm polyurethane spraying heat preservation body, the firmness when having increased the seal device and having avoided when filling the foaming material and produced the exhaust that the foaming material and having set up and having fallen and having caused the device loose, also easy dismantlement device to seal after the end device.
Preferably, three groups of circular grooves are formed in one side surface of the seal head cover in a way of outwards diffusing in sequence.
By adopting the technical scheme, the hard polyurethane spraying heat-insulating pipelines with different pipeline calibers can be plugged, and the practicability of the end socket device is improved.
Preferably, the clamping arc plates arranged on the fixing ring are arranged in two groups.
Through adopting above-mentioned technical scheme, make it offset with the outer wall of stereoplasm polyurethane spraying heat preservation body through removing two sets of centre gripping arc boards, also dismantle easily when having increased the fixed firmness of head device.
Preferably, a non-slip mat is arranged on one side surface of the clamping arc plate.
Through adopting above-mentioned technical scheme, improved the frictional force of centre gripping arc board and stereoplasm polyurethane spraying insulation tube body outer wall, increased fixed effect.
Preferably, a rotating shaft arranged at the bottom end of the screw rod is rotationally connected with the clamping arc plate.
By adopting the technical scheme, the screw rod does not drive the clamping arc plate to rotate when rotating, and the clamping arc plate is prevented from being influenced to move up and down.
Preferably, the air holes formed in the circular groove are annularly arranged around the center point of the circular groove.
By adopting the technical scheme, when the rigid polyurethane spraying heat-insulating pipe body is matched with the circular groove channel, the foaming layer is communicated with the air holes, so that the air discharge work is convenient.
Preferably, the outer layer of the hard polyurethane spraying heat-insulating pipe body is sleeved with a heat-insulating outer protective pipe body, and a foaming layer is formed between the hard polyurethane spraying heat-insulating pipe body and the heat-insulating outer protective pipe body through a bracket.
Preferably, the whole diameter of the hard polyurethane spraying heat-insulating pipe body is the same as the diameter of the circular groove.
Compared with the prior art, the application has the beneficial effects that: the hard polyurethane spraying heat-insulating pipeline with different pipeline calibers can be plugged, the practicability of the end socket device is improved, the firmness of the end socket device in fixing is improved, the end socket device is prevented from loosening and falling due to the exhaust gas generated during filling of foaming materials, and the end socket device is easy to detach after filling is finished.
Drawings
Fig. 1 is a schematic perspective view of the present application.
Fig. 2 is a schematic diagram of the front structure of the present application.
Fig. 3 is a schematic view of the back structure of the present application.
Fig. 4 is a schematic side view of the present application.
Fig. 5 is an enlarged schematic view of the seal head structure of the present application.
In the figure: in the figure: 1. a closure cap; 2. a fixing ring; 3. circular recessed channels; 4. ventilation holes; 5. a threaded hole; 6. a screw rod; 7. a nut; 8. a rotating shaft; 9. clamping the arc plate; 10. an anti-slip pad; 11. a hard polyurethane spraying heat-insulating pipe body; 12. a foaming layer; 13. and (5) insulating the outer protective tube body.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
Referring to fig. 1, 3, 4 and 5, the sealing head cover 1, the fixing ring 2, the circular groove 3, the air vent 4, the screw rod 6, the clamping arc plate 9, the hard polyurethane spraying insulation pipe 11 and the foaming layer 12 are included, the circular groove 3 which diffuses outwards around the center point of the sealing head cover 1 is arranged on one side surface of the sealing head cover 1, the air vent 4 is arranged on the circular groove 3, the fixing ring 2 is arranged on the sealing head cover 1, the threaded hole 5 is arranged on the fixing ring 2, the screw rod 6 is arranged in the threaded hole 5, one end of the screw rod 6 is provided with the nut 7, the other end of the screw rod 6 is connected with the clamping arc plate 9, when the sealing head cover 1 is arranged, the fixing ring 2 is sleeved on two ends of the hard polyurethane spraying insulation pipe 11, one end opening diameter of the hard polyurethane spraying insulation pipe 11 is matched with one circular groove 3 in the sealing head cover 1, the opening wall is matched with the circular groove 3 after the circular groove 3 is aligned with the circular groove, the foaming layer 12 is filled in the sealing head cover 1, the screw rod 6 is arranged on the sealing head cover 2, the two ends of the screw rod 6 are connected with the two ends of the clamping arc plate 9 in a rotating way, the sealing head cover 1 is connected with the two ends of the hard polyurethane spraying insulation pipe 11 in a rotating way, the sealing head cover 1 is connected with the two ends of the sealing arc plate 11, the sealing head 11 is connected with the sealing head 11 in a rotating way, the sealing head cover 1 is connected with the sealing head 1, the two ends of the sealing head 11 is connected with the sealing end of the sealing head 3 through the sealing arc plate is fixed by the sealing arc plate and the sealing device, and the sealing head is connected with the sealing head 11, and the sealing head 11 through the sealing head is fixed by the sealing head and the sealing head 1 and the sealing device. The end socket device is prevented from loosening and falling due to the exhaust gas generated during filling of the foaming material, and the end socket device is easy to detach after filling is finished.
Referring to fig. 1, fig. 3, fig. 4 and fig. 5, the round groove way 3 that the outside diffusion set up in proper order on the one side of the sealing cap 1 has three groups, can carry out the shutoff to the hard polyurethane spraying insulation pipe of different pipeline bore, has improved the practicality of head device, the centre gripping arc board 9 of installation on the solid fixed ring 2 sets up to two groups, makes its outer wall with hard polyurethane spraying insulation pipe 11 offset through removing two groups of centre gripping arc boards 9, also dismantles easily when having increased the fixed firmness of head device, install slipmat 10 on the one side of centre gripping arc board 9, improved the frictional force of centre gripping arc board 9 and hard polyurethane spraying insulation pipe 11 outer wall, increased fixed effect.
Referring to fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5, the rotating shaft 8 installed at the bottom end of the screw rod 6 is rotationally connected with the clamping arc plate 9, so that the screw rod 6 does not drive the clamping arc plate 9 to rotate when rotating, the clamping arc plate 9 is prevented from being influenced to move up and down, the ventilation holes 4 formed in the circular groove 3 are annularly arranged around the central point of the circular groove 3, when the hard polyurethane spraying heat-insulating pipe 11 is matched with the circular groove 3, the foaming layer 12 is communicated with the ventilation holes 4, the air discharging work is convenient, the outer layer of the hard polyurethane spraying heat-insulating pipe 11 is sleeved with the heat-insulating outer protecting pipe 13, the foaming layer 12 is formed between the hard polyurethane spraying heat-insulating pipe 11 and the heat-insulating outer protecting pipe 13 through a bracket, and the overall diameter of the hard polyurethane spraying heat-insulating pipe 11 is the same as that of the circular groove 3.
The embodiment of the application relates to a hard polyurethane spraying heat-insulation pipeline sealing device, which has the implementation principle that: when the sealing cover 1 is installed, the fixing rings 2 are sleeved on two ports of the hard polyurethane spraying heat-insulating pipe body 11, according to the diameter of a pipe port of the hard polyurethane spraying heat-insulating pipe body 11, after one circular groove channel 3 of three groups of circular groove channels 3 arranged on the sealing cover 1 is aligned with the circular groove channel 3, the pipe port wall is matched with the matched circular groove channel 3, when the foaming layer 12 is filled, the ventilation holes 4 formed in the circular groove channel 3 are communicated with the foaming layer 12, air exhaust work can be carried out, the sealing device can seal the hard polyurethane spraying heat-insulating pipe with different pipe diameters, the practicability of the sealing device is improved, the screw rod 6 is rotated through the positive and negative rotation nuts 7, the screw rod 6 is connected with the threaded holes 5 formed in the fixing rings 2 in a threaded mode, so that one end of the screw rod 6 is driven to rotate and be connected with the clamping arc plates 9, the outer wall of the hard polyurethane spraying heat-insulating pipe body 11 is enabled to be matched with the two groups of the clamping arc plates, when the foaming layer 12 is filled, the ventilation holes 4 formed in the circular groove channel 3 are communicated with the foaming layer 12, the sealing cover is increased, the foaming device is enabled to be more firmly filled, the foaming device is prevented from being loosened when the sealing device is filled, and the sealing device is removed easily, and the sealing device is prevented from being removed.
Although embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the application, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a stereoplasm polyurethane spraying heat preservation pipeline head device, includes closing cap (1), solid fixed ring (2), circular recessed channel (3), bleeder vent (4), lead screw (6), centre gripping arc board (9), stereoplasm polyurethane spraying heat preservation body (11) and foaming layer (12), its characterized in that: the sealing head is characterized in that a circular groove (3) surrounding the outside diffusion of the center point of the sealing head cover (1) is formed in one side face of the sealing head cover (1), vent holes (4) are formed in the circular groove (3), a fixing ring (2) is arranged on the sealing head cover (1), a threaded hole (5) is formed in the fixing ring (2), a screw rod (6) is arranged in the threaded hole (5) in a threaded mode, a nut (7) is arranged at one end of the screw rod (6), and the other end of the screw rod (6) is connected with a clamping arc plate (9).
2. The hard polyurethane spray insulation pipeline sealing device according to claim 1, wherein: the round grooves (3) which are sequentially outwards arranged on one side surface of the seal head cover (1) in a diffusing way are three groups.
3. The hard polyurethane spray insulation pipeline sealing device according to claim 1, wherein: the clamping arc plates (9) arranged on the fixed ring (2) are arranged in two groups.
4. The hard polyurethane spray insulation pipeline sealing device according to claim 1, wherein: a non-slip mat (10) is arranged on one side surface of the clamping arc plate (9).
5. The hard polyurethane spray insulation pipeline sealing device according to claim 1, wherein: a rotating shaft (8) arranged at the bottom end of the screw rod (6) is rotationally connected with a clamping arc plate (9).
6. The hard polyurethane spray insulation pipeline sealing device according to claim 1, wherein: the ventilation holes (4) formed in the circular groove (3) are annularly arranged around the center point of the circular groove (3).
7. The hard polyurethane spray insulation pipeline sealing device according to claim 1, wherein: the outer layer of the hard polyurethane spraying heat-insulating pipe body (11) is sleeved with a heat-insulating outer protecting pipe body (13), and a foaming layer (12) is formed between the hard polyurethane spraying heat-insulating pipe body (11) and the heat-insulating outer protecting pipe body (13) through a bracket.
8. The hard polyurethane spray insulation pipeline sealing device according to claim 1, wherein: the whole diameter of the hard polyurethane spraying heat-insulating pipe body (11) is the same as the diameter of the circular groove channel (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311384393.6A CN117140834A (en) | 2023-10-25 | 2023-10-25 | Hard polyurethane spraying heat preservation pipeline head device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311384393.6A CN117140834A (en) | 2023-10-25 | 2023-10-25 | Hard polyurethane spraying heat preservation pipeline head device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117140834A true CN117140834A (en) | 2023-12-01 |
Family
ID=88884489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311384393.6A Pending CN117140834A (en) | 2023-10-25 | 2023-10-25 | Hard polyurethane spraying heat preservation pipeline head device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117140834A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103174908A (en) * | 2013-04-17 | 2013-06-26 | 哈尔滨工业大学 | Reusable diameter-changing gas tube sealing end socket cover |
| CN107310090A (en) * | 2017-08-29 | 2017-11-03 | 天津天地龙管业股份有限公司 | Pipe plug device is used in a kind of Novel heat insulating tube foaming |
| CN207394220U (en) * | 2017-09-11 | 2018-05-22 | 上海乔治费歇尔亚大塑料管件制品有限公司 | Suitable for the end cap of multiple caliber pipeline |
| CN108443635A (en) * | 2018-05-05 | 2018-08-24 | 芜湖君如保温材料有限公司 | A kind of utilidor end-sealing device |
| CN213563931U (en) * | 2020-11-09 | 2021-06-29 | 沧州融通管道装备有限公司 | Novel foaming platform without support |
| CN215763947U (en) * | 2021-09-06 | 2022-02-08 | 天津市安竣管道工程有限公司 | Empty pipeline plugging device with good leakproofness |
| CN216242991U (en) * | 2021-11-23 | 2022-04-08 | 天津市宇刚保温建材有限公司 | Prefabricated direct-burried insulating tube shutoff processing apparatus |
| CN216267193U (en) * | 2021-11-23 | 2022-04-12 | 天津市宇刚保温建材有限公司 | Prefabricated direct-burried insulating tube foaming plugging device |
| CN217531614U (en) * | 2022-05-11 | 2022-10-04 | 黑龙江京聚保温材料有限公司 | Seal head support for support-free foaming platform |
| CN219532507U (en) * | 2023-03-30 | 2023-08-15 | 四川省特种设备检验研究院 | Sealing device for flue gas sampling hole of tail flue of boiler |
-
2023
- 2023-10-25 CN CN202311384393.6A patent/CN117140834A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103174908A (en) * | 2013-04-17 | 2013-06-26 | 哈尔滨工业大学 | Reusable diameter-changing gas tube sealing end socket cover |
| CN107310090A (en) * | 2017-08-29 | 2017-11-03 | 天津天地龙管业股份有限公司 | Pipe plug device is used in a kind of Novel heat insulating tube foaming |
| CN207394220U (en) * | 2017-09-11 | 2018-05-22 | 上海乔治费歇尔亚大塑料管件制品有限公司 | Suitable for the end cap of multiple caliber pipeline |
| CN108443635A (en) * | 2018-05-05 | 2018-08-24 | 芜湖君如保温材料有限公司 | A kind of utilidor end-sealing device |
| CN213563931U (en) * | 2020-11-09 | 2021-06-29 | 沧州融通管道装备有限公司 | Novel foaming platform without support |
| CN215763947U (en) * | 2021-09-06 | 2022-02-08 | 天津市安竣管道工程有限公司 | Empty pipeline plugging device with good leakproofness |
| CN216242991U (en) * | 2021-11-23 | 2022-04-08 | 天津市宇刚保温建材有限公司 | Prefabricated direct-burried insulating tube shutoff processing apparatus |
| CN216267193U (en) * | 2021-11-23 | 2022-04-12 | 天津市宇刚保温建材有限公司 | Prefabricated direct-burried insulating tube foaming plugging device |
| CN217531614U (en) * | 2022-05-11 | 2022-10-04 | 黑龙江京聚保温材料有限公司 | Seal head support for support-free foaming platform |
| CN219532507U (en) * | 2023-03-30 | 2023-08-15 | 四川省特种设备检验研究院 | Sealing device for flue gas sampling hole of tail flue of boiler |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN117140834A (en) | Hard polyurethane spraying heat preservation pipeline head device | |
| CN102135215A (en) | Drainage pipe fixing and connecting device | |
| CN212004270U (en) | Flow-adjustable fire hydrant | |
| CN213685585U (en) | Pipeline with good fixing effect | |
| CN108061216B (en) | Pipeline plugging tool with pressure relief structure | |
| CN200989509Y (en) | Spigot-and-socket multifunction fast urgent repair device | |
| CN204533956U (en) | A kind of pipeline leakage plugging device | |
| CN202457829U (en) | Pressure cooker gravity pressure limiting valve | |
| CN210949913U (en) | Baffle door axle head oiling is sealed device | |
| CN2854285Y (en) | Air duct compensater | |
| CN215161043U (en) | Protection type carbon monoxide gas making furnace | |
| CN203772492U (en) | Quick pressure test device for radiant tube | |
| CN216241304U (en) | Air blower shell convenient to dismantle and install | |
| CN100404944C (en) | Obstructing and conducting device for pipe | |
| CN214250531U (en) | Rotary kiln head sealing device | |
| CN220600783U (en) | Security protection device for heating and ventilation pipeline | |
| CN219994747U (en) | Quick plugging device under water of drainage pipe | |
| CN211411306U (en) | Pipeline explosion-proof device for dust processor | |
| CN212774860U (en) | Cooling fan convenient to heat dissipation | |
| CN220749453U (en) | Heat supply pipeline maintenance device | |
| CN211145757U (en) | Natural gas line end cap | |
| CN204253317U (en) | Air compressor | |
| CN214744161U (en) | Device is prevented leaking in natural gas line maintenance | |
| CN213626098U (en) | Pipeline fire prevention plugging device | |
| CN210292218U (en) | Manual exhaust valve of fan-coil unit and air conditioner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |