CN113700956B - Splicing sealing structure of ventilating duct - Google Patents
Splicing sealing structure of ventilating duct Download PDFInfo
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- CN113700956B CN113700956B CN202111083181.5A CN202111083181A CN113700956B CN 113700956 B CN113700956 B CN 113700956B CN 202111083181 A CN202111083181 A CN 202111083181A CN 113700956 B CN113700956 B CN 113700956B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L21/00—Joints with sleeve or socket
- F16L21/08—Joints with sleeve or socket with additional locking means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L21/00—Joints with sleeve or socket
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- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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Abstract
The invention relates to the technical field of splicing sealing structures, and provides a splicing sealing structure of a ventilating duct, which has the advantages of large sealing contact area, good sealing reliability, long service life, good use flexibility and time and labor saving operation.
Description
Technical Field
The invention relates to the technical field of splicing sealing structures, in particular to a splicing sealing structure of a ventilating duct.
Background
As is well known, a splicing sealing structure of a ventilation duct is an auxiliary sealing and communicating device used for communicating two adjacent ventilation ducts among a plurality of ventilation ducts and simultaneously sealing the two ventilation ducts.
Current air pipe's concatenation seal structure includes rubber seal ring and two angle hoop usually, a plurality of connecting holes have been seted up to the symmetry on two angle hoops, rubber seal ring sets up between two angle hoops, it is when using, with two angle hoops respectively with two air pipe fixed connection that need communicate each other, then insert rubber seal ring between two angle hoops, insert the bolt in the connecting hole that corresponds the coincidence on two angle hoops at last, compress tightly two angle hoops each other through turning tightly the bolt at last, accomplish the concatenation between two air pipe and seal.
Although the splicing of two air pipes can be realized by the prior art scheme, the rubber sealing ring between two angle bars is simply relied on for sealing, so that the area of a sealing contact surface is small, the sealing reliability is poor, and meanwhile, the rubber sealing ring can be aged along with the lapse of service time, so that the sealing failure is easily caused, and a plurality of bolts are required to be inserted into the connecting holes in sequence for installation during installation and construction, so that the operation is relatively laborious.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides the splicing sealing structure of the ventilating duct, which has the advantages of larger sealing contact area, better sealing reliability, better use stability of the sealing part and longer service life, can be suitable for ventilating ducts with different sizes, has better use flexibility and is time-saving and labor-saving to operate.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: the splicing sealing structure of the ventilation pipeline comprises two angle iron rings and two ventilation pipelines, wherein the two angle iron rings are fixedly connected to the side walls of the two ventilation pipelines respectively, the splicing sealing structure further comprises an inner sealing assembly and an outer sealing assembly, one ends of the two angle iron rings, which are far away from each other, are fixedly connected with gradual change rings matched with the outer sealing assembly, the inner sealing assembly comprises four inner lining strip frames, the four inner lining strip frames are connected between the two adjacent inner lining strip frames at the head and the tail through corner sleeves, front wedge push strips and rear wedge push strips are fixedly connected in the four inner lining strip frames, the outer sealing assembly comprises four outer corner sealing sleeves, four outer corner sealing sleeves are connected between every two adjacent outer corner sealing sleeves through outer adjusting joint sleeves, a plurality of tensioning tension springs are fixedly connected between every two adjacent outer corner sealing sleeves in the four outer corner sealing sleeves, two middle cavity holes are formed in the four outer corner sleeves, eight inner thread square plates are slidably connected in the middle cavity holes, eight adjusting bolts are connected in the inner thread square plates in a threaded connection mode, eight sliding blocks are rotatably connected with the four outer corner sealing sleeves, and a transverse transmission assembly are installed in the four outer corner sealing sleeves in a sliding block in a sliding manner.
On the basis of the scheme, the transverse transmission assembly and the vertical transmission assembly respectively comprise a front transverse jacking plate, a rear transverse jacking plate, a front vertical jacking plate and a rear vertical jacking plate, the front transverse jacking plate and the front vertical jacking plate are connected in an outer corner sealing sleeve in a sliding mode, the front transverse jacking plate and the front vertical jacking plate are respectively connected with a front transverse transmission plate and a front vertical transmission plate through a plurality of front jacking springs, the front transverse transmission plate and the front vertical transmission plate are connected in the outer corner sealing sleeve in a sliding mode, the rear transverse jacking plate and the rear vertical jacking plate are respectively connected with a rear transverse transmission plate and a rear vertical transmission plate through a plurality of rear jacking springs, and the rear transverse transmission plate and the rear vertical transmission plate are connected in the outer corner sealing sleeve in a sliding mode.
Preferably on the basis of the scheme, the front transverse dovetail rail is fixedly connected to the front transverse jacking plate and the front transverse transmission plate, the rear transverse dovetail rail is fixedly connected to the rear transverse jacking plate and the rear transverse transmission plate, the front vertical dovetail rail is fixedly connected to the front vertical jacking plate and the front vertical transmission plate, the rear vertical dovetail rail is fixedly connected to the rear vertical jacking plate and the rear vertical transmission plate, the front transverse dovetail groove, the rear transverse dovetail groove, the front vertical dovetail groove and the rear vertical dovetail groove are formed in the outer corner sealing sleeve, and the front transverse dovetail rail, the rear transverse dovetail rail, the front vertical dovetail groove and the rear vertical dovetail groove are respectively connected in the front transverse dovetail groove, the rear transverse dovetail groove, the front vertical dovetail groove and the rear vertical dovetail groove in a sliding manner.
On the basis of the scheme, the front transverse transmission plate, the rear transverse transmission plate, the front vertical transmission plate and the rear vertical transmission plate are fixedly connected with a plurality of reset tension springs which are fixedly connected with the outer corner sealing sleeves.
On the basis of the scheme, the pushing slopes matched with the lining strip frame are arranged on the front transverse transmission plate, the rear transverse transmission plate, the front vertical transmission plate and the rear vertical transmission plate.
On the basis of the scheme, the front transverse tightening plate is in sliding fit with the front transverse transmission plate, the rear transverse tightening plate is in sliding fit with the rear transverse transmission plate, the front vertical tightening plate is in sliding fit with the front vertical transmission plate, and the rear vertical tightening plate is in sliding fit with the rear vertical transmission plate.
As a further aspect of the above, a slope matched with the gradual change ring is provided in the outer corner sealing sleeve near the inner side wall of the gradual change ring.
As a further improvement of the above scheme, the lining strip frame is provided with a groove, the outer corner sealing sleeve is internally provided with a protrusion, and the protrusion is in sliding fit in the groove.
As a further improvement of the above scheme, the end of the lining strip rack close to the ventilation duct and the end of the inner corner sleeve close to the ventilation duct are both provided with a sealing gasket.
As a further scheme of the scheme, the internal thread square plate is made of low-density high-wear-resistance alloy materials.
(III) advantageous effects
Compared with the prior art, the invention provides a splicing sealing structure of a ventilating duct, which has the following beneficial effects:
1. according to the invention, the two ventilation pipelines can be fixedly connected through the matching of the outer corner sealing sleeve, the outer adjusting sleeve and the tension spring, the two ventilation pipelines can be hermetically communicated inside through the matching of the lining strip frame and the corner sleeve, the sealing contact area is larger, the sealing reliability is better, the auxiliary sealing between the two ventilation pipelines can be realized through the matching of the gradual change ring and the outer corner sealing sleeve, the matching of the transverse transmission assembly and the outer corner sealing sleeve and the matching of the vertical transmission assembly and the outer corner sealing sleeve, the use stability of the sealing position is better, and the service life is longer.
2. According to the splicing sealing structure of the ventilation pipeline, the outer corner sealing sleeves, the outer adjusting sleeves, the lining strip frame and the corner sleeves are matched, so that the splicing sealing structure of the ventilation pipeline can be suitable for ventilation pipelines with different sizes, and the splicing sealing structure is good in use flexibility.
3. According to the invention, through the matching of the outer corner sealing sleeve, the internal thread square plate, the sliding block and the lining strip frame, the relative movement between the outer corner sealing sleeve and the lining strip frame can be realized by rotating the adjusting bolt, so that the stability of the relative positions among the outer corner sealing sleeve, the lining strip frame and the ventilation pipeline is facilitated, and the operation is time-saving and labor-saving.
Drawings
FIG. 1 is a partially cut-away perspective view of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1A;
FIG. 3 is a schematic perspective view of the present invention;
FIG. 4 is an exploded perspective view of the present invention;
FIG. 5 is a schematic perspective view of the combination of the lining strip holder, corner sleeves and front wedge push strips of the present invention;
FIG. 6 is a schematic view of an exploded perspective structure of the front horizontal tightening plate, the rear horizontal tightening plate, the front vertical tightening plate, and the like in cooperation according to the present invention;
FIG. 7 is a schematic perspective view of the outer corner sealing sleeve, outer adjusting sleeve and tension spring of the present invention.
In the figure: 1. an angle iron ring; 2. a ventilation duct; 3. a gradual change ring; 4. a lining strip frame; 5. a corner sleeve; 6. a front wedge-shaped push bar; 7. a rear wedge-shaped push bar; 8. an outer corner sealing sleeve; 9. an outer adjusting sleeve; 10. tensioning the tension spring; 11. an internal thread square plate; 12. adjusting the bolt; 13. a slider; 14. a front horizontal jacking plate; 15. a rear horizontal jacking plate; 16. a front vertical jacking plate; 17. a back vertical jacking plate; 18. a front jacking spring; 19. a front transverse transmission plate; 20. a front vertical transmission plate; 21. a spring is tightly pressed at the back; 22. a rear horizontal transmission plate; 23. a rear vertical transmission plate; 24. a forward transverse dovetail rail; 25. a posterior lateral dovetail rail; 26. a front vertical dovetail rail; 27. a rear vertical dovetail rail; 28. a return tension spring; 29. pushing the slope.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
Referring to fig. 1-7, a splicing sealing structure of a ventilation duct comprises two angle iron rings 1 and two ventilation ducts 2, wherein the two angle iron rings 1 are respectively and fixedly connected to the side walls of the two ventilation ducts 2, the splicing sealing structure further comprises an inner sealing assembly and an outer sealing assembly, the ends, far away from each other, of the two angle iron rings 1 are respectively and fixedly connected with a gradual change ring 3 matched with the outer sealing assembly, the inner sealing assembly comprises four lining strip frames 4, sealing gaskets are respectively arranged at one ends, close to the ventilation ducts 2, of the lining strip frames 4 and at one ends, close to the ventilation ducts 2, of the inner corner sleeves 5, the two lining strip frames 4 adjacent to each other end to end of the four lining strip frames 4 are connected through the corner sleeves 5, the sealing communication between the two ventilation ducts 2 can be realized inside, the sealing contact area is large, the sealing reliability is good, a front wedge-shaped push strip 6 and a rear wedge-shaped push strip 7 are respectively and fixedly connected in the four lining strip frames 4, the outer sealing assembly comprises four outer corner sealing sleeves 8, the inner side wall of each outer corner sealing sleeve 8 close to the gradual change ring 3 is provided with a slope matched with the gradual change ring 3, the sealing effect between the two gradual change rings 3 is improved while the two gradual change rings 3 are pressed, a groove is formed in the lining strip frame 4, a bulge is arranged in each outer corner sealing sleeve 8 and is in sliding fit in the groove, the directionality of relative motion between the lining strip frame 4 and the outer corner sealing sleeves 8 is better, every two adjacent outer corner sealing sleeves 8 in the four outer corner sealing sleeves 8 are connected through an outer adjusting sleeve 9, the two outer corner sealing sleeves 8, the outer adjusting sleeve 9 and the tension springs 10 are matched to realize the fixed connection between the two ventilation pipelines 2, and a plurality of tension springs 10 are fixedly connected between every two adjacent outer corner sealing sleeves 8 in the four outer corner sealing sleeves 8, two middle cavity holes are respectively formed in the four outer corner sealing sleeves 8, inner thread square plates 11 are respectively connected in the eight middle cavity holes in a sliding manner, adjusting bolts 12 are respectively connected in the eight inner thread square plates 11 in a threaded manner, sliding blocks 13 are respectively connected in the eight adjusting bolts 12 in a rotating manner, the eight sliding blocks 13 are respectively connected with the four lining strip frames 4 in a sliding manner, the relative movement between the outer corner sealing sleeves 8 and the lining strip frames 4 can be realized by rotating the adjusting bolts 12 through the matching of the outer corner sealing sleeves 8, the inner thread square plates 11, sliding blocks 13 and the lining strip frames 4, so that the stability of the relative positions among the outer corner sealing sleeves 8, the lining strip frames 4 and the ventilating duct 2 is convenient to stabilize, the operation is time-saving and labor-saving, the inner thread square plates 11 are made of low-density high-wear-resistant alloy materials, the wear-resistant effect of the inner thread square plates 11 is improved, and transverse transmission components and vertical transmission components are respectively installed in the four outer corner sealing sleeves 8, the transverse transmission assembly and the vertical transmission assembly respectively comprise a front transverse jacking plate 14, a rear transverse jacking plate 15, a front vertical jacking plate 16 and a rear vertical jacking plate 17, the front transverse jacking plate 14 and the front vertical jacking plate 16 are both connected in an outer corner sealing sleeve 8 in a sliding manner, the front transverse jacking plate 14 and the front vertical jacking plate 16 are both connected with a front transverse transmission plate 19 and a front vertical transmission plate 20 through a plurality of front jacking springs 18 respectively, the front transverse transmission plate 19 and the front vertical transmission plate 20 are both connected in the outer corner sealing sleeve 8 in a sliding manner, the rear transverse jacking plate 15 and the rear vertical jacking plate 17 are both connected with a rear transverse transmission plate 22 and a rear vertical transmission plate 23 through a plurality of rear jacking springs 21 respectively, the rear transverse transmission plate 22 and the rear vertical transmission plate 23 are both connected in the outer corner sealing sleeve 8 in a sliding manner, and the sealing sleeves are matched with the outer corner 8 through a gradual change ring 3, the cooperation between horizontal drive assembly and the outer corner seal cover 8 and the cooperation between perpendicular drive assembly and the outer corner seal cover 8 can realize the auxiliary seal between two air pipe 2, and sealed department stability in use is better, and life is longer.
It should be further noted that the front transverse tightening plate 14 and the front transverse transmission plate 19 are both fixedly connected with a front transverse dovetail rail 24, the rear transverse tightening plate 15 and the rear transverse transmission plate 22 are both fixedly connected with a rear transverse dovetail rail 25, the front vertical tightening plate 16 and the front vertical transmission plate 20 are both fixedly connected with a front vertical dovetail rail 26, the rear vertical tightening plate 17 and the rear vertical transmission plate 23 are both fixedly connected with a rear vertical dovetail rail 27, the outer corner sealing sleeve 8 is internally provided with a front transverse dovetail groove, a rear transverse dovetail groove, a front vertical dovetail groove and a rear vertical dovetail groove, the front transverse dovetail rail 24, the rear transverse dovetail rail 25, the front vertical dovetail rail 26 and the rear vertical dovetail rail 27 are respectively and slidably connected in the front transverse dovetail groove, the rear transverse dovetail groove, the front vertical dovetail groove and the rear vertical dovetail groove, the direction during the adjustment movement process is better, the front transverse transmission plate 19, the rear transverse transmission plate 22, the front vertical transmission plate 20 and the rear vertical transmission plate 23 are all fixedly connected with a plurality of reset dovetail grooves 28, and a plurality of reset tension springs 28 are fixedly connected with the outer corner sealing sleeve 8 when being disassembled, be convenient for preceding horizontal drive plate 19, back horizontal drive plate 22, the restoration of preceding vertical drive plate 20 and back vertical drive plate 23, on the preceding horizontal drive plate 19, on the back horizontal drive plate 22, all be provided with on the preceding vertical drive plate 20 and the back vertical drive plate 23 with inside lining strip frame 4 assorted promotion domatic 29, be convenient for inside lining strip frame 4 promote preceding horizontal drive plate 19, back horizontal drive plate 22, the motion of preceding vertical drive plate 20 and back vertical drive plate 23, be sliding fit between preceding horizontal top tension plate 14 and the preceding horizontal drive plate 19, be sliding fit between back horizontal top tension plate 15 and the back horizontal drive plate 22, be sliding fit on preceding vertical top tension plate 16 and between the preceding vertical drive plate 20, be sliding fit on the back vertical top tension plate 17 and between the back vertical drive plate 23.
In conclusion, the working principle and the working process of the splicing sealing structure of the ventilation pipeline are that when the splicing sealing structure is used, firstly, the two ventilation pipelines 2 are respectively inserted into a gap between the lining strip frame 4 and the outer corner sealing sleeve 8 from two ends, then the gradual-change ring 3 leans against the outer corner sealing sleeve 8, the relative communication between the two ventilation pipelines 2 is realized by rotating the adjusting bolt 12, the lining strip frame 4 and the outer corner sealing sleeve 8 are close to each other in the rotating process of the adjusting bolt 12, the transverse transmission assembly and the vertical transmission assembly realize the compression positioning of the two angle iron rings 1 and the two gradual-change rings 3 in the outer corner sealing sleeve 8 when the lining strip frame 4 moves relative to the outer corner sealing sleeve 8, and further the mutual stabilization and the communication between the two ventilation pipelines 2 are realized.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A splicing sealing structure of a ventilation pipeline comprises two angle iron rings (1) and two ventilation pipelines (2), wherein the two angle iron rings (1) are respectively and fixedly connected to the side walls of the two ventilation pipelines (2), the splicing sealing structure is characterized by further comprising an inner sealing assembly and an outer sealing assembly, one end, far away from each other, of each two angle iron rings (1) is fixedly connected with a gradual change ring (3) matched with the outer sealing assembly, the inner sealing assembly comprises four inner lining strip frames (4), the four inner lining strip frames (4) are connected between the two adjacent inner lining strip frames (4) at the head and the tail through corner sleeves (5), the four inner lining strip frames (4) are fixedly connected with front wedge-shaped push strips (6) and rear wedge-shaped push strips (7), the outer sealing assembly comprises four outer corner sealing sleeves (8), each two adjacent outer corner frames (8) in the four outer corner frames (8) are connected through an outer adjusting sleeve (9), a plurality of inner thread adjusting sealing sleeves (10) are fixedly connected between each two adjacent outer corner frames (8) in the four outer corner frames (8), each two inner thread adjusting square holes (11) in the four outer corner sleeves are connected with eight inner thread adjusting square holes (12), and eight inner thread adjusting square adjusting bolt holes (11) are formed in each two inner thread adjusting square holes in each four inner thread adjusting sealing sleeves (8), eight inner thread adjusting square holes (12) are formed in each eight inner thread adjusting sealing sleeves (12) in each two sliding blocks (8), the eight sliding blocks (13) are respectively in sliding connection with four lining strip frames (4), a transverse transmission assembly and a vertical transmission assembly are respectively installed in four outer corner sealing sleeves (8), the transverse transmission assembly and the vertical transmission assembly respectively comprise a front transverse jacking plate (14), a rear transverse jacking plate (15), a front vertical jacking plate (16) and a rear vertical jacking plate (17), the front transverse jacking plate (14) and the front vertical jacking plate (16) are respectively in sliding connection with the outer corner sealing sleeves (8), the front transverse jacking plate (14) and the front vertical jacking plate (16) are respectively in sliding connection with a front transverse transmission plate (19) and a front vertical transmission plate (20) through a plurality of front jacking springs (18), the front transverse transmission plate (19) and the front vertical transmission plate (20) are respectively in sliding connection with the outer corner sealing sleeves (8), the rear transverse jacking plate (15) and the rear vertical jacking plate (17) are respectively in sliding connection with a plurality of front vertical jacking plates (23), the front transverse jacking plate (23) and rear vertical jacking plates (23) are respectively in sliding connection with the front vertical jacking plates (23), last equal fixedly connected with back horizontal forked tail track (25) of back horizontal top tight plate (15) and back horizontal transmission board (22), on preceding vertical top tight plate (16) and on preceding vertical transmission board (20) equal fixedly connected with before vertical forked tail track (26), after erect on tight plate (17) and after erect on transmission board (23) equal fixedly connected with after erect forked tail track (27), set up preceding horizontal dovetail groove, back horizontal dovetail groove, preceding vertical dovetail groove and after erect dovetail groove in outer corner seal cover (8), preceding horizontal dovetail track (24), back horizontal dovetail track (25), preceding vertical dovetail track (26) and back erect dovetail groove in preceding horizontal dovetail groove, in the back horizontal dovetail groove, in the preceding vertical dovetail groove and in the back vertical dovetail groove respectively sliding connection.
2. The splicing sealing structure of the ventilation pipeline according to claim 1, characterized in that a plurality of reset tension springs (28) are fixedly connected to the front transverse transmission plate (19), the rear transverse transmission plate (22), the front vertical transmission plate (20) and the rear vertical transmission plate (23), and the reset tension springs (28) are fixedly connected to the outer corner sealing sleeve (8).
3. Splicing and sealing structure of ventilation ducts according to claim 2, characterized in that pushing slopes (29) matched with the lining strip frame (4) are arranged on the front transverse transmission plate (19), the rear transverse transmission plate (22), the front vertical transmission plate (20) and the rear vertical transmission plate (23).
4. A splicing sealing structure of ventilation ducts according to claim 3, characterized in that the front cross tightening plate (14) is in sliding fit with the front cross transmission plate (19), the rear cross tightening plate (15) is in sliding fit with the rear cross transmission plate (22), the front vertical tightening plate (16) is in sliding fit with the front vertical transmission plate (20), and the rear vertical tightening plate (17) is in sliding fit with the rear vertical transmission plate (23).
5. Splicing and sealing structure of ventilation ducts according to claim 4, characterized in that the inner side wall of the outer corner sealing sleeve (8) close to the gradual change ring (3) is provided with a slope matching the gradual change ring (3).
6. Splicing and sealing structure of ventilation ducts according to claim 5, characterized in that the lining strip holder (4) is provided with a groove, and the outer corner sealing sleeve (8) is provided with a protrusion, which is slidably fitted in the groove.
7. A splicing sealing structure of a ventilation duct according to claim 6, characterized in that the end of the lining strip frame (4) close to the ventilation duct (2) and the end of the inner corner sleeve (5) close to the ventilation duct (2) are provided with sealing gaskets.
8. The splicing sealing structure of the ventilation pipeline is characterized in that the square plate (11) with the internal threads is made of low-density high-wear-resistance alloy materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111083181.5A CN113700956B (en) | 2021-09-15 | 2021-09-15 | Splicing sealing structure of ventilating duct |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111083181.5A CN113700956B (en) | 2021-09-15 | 2021-09-15 | Splicing sealing structure of ventilating duct |
Publications (2)
| Publication Number | Publication Date |
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| CN113700956A CN113700956A (en) | 2021-11-26 |
| CN113700956B true CN113700956B (en) | 2022-11-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111083181.5A Active CN113700956B (en) | 2021-09-15 | 2021-09-15 | Splicing sealing structure of ventilating duct |
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Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2330848Y (en) * | 1997-07-25 | 1999-07-28 | 陈福华 | Clamp type sealed connection device for pipeline |
| US9101969B2 (en) * | 2002-02-01 | 2015-08-11 | Jeffrey Allen Hermanson | Rectangular/square spiral ducting systems with flange connectors |
| US7195289B2 (en) * | 2004-03-26 | 2007-03-27 | Ingersoll-Rand Company | Fluid distribution system |
| CN210106799U (en) * | 2019-04-27 | 2020-02-21 | 深圳市中港建筑工程有限公司 | Carbon steel air pipe convenient to installation |
| CN213040020U (en) * | 2020-07-02 | 2021-04-23 | 江西联祥通风设备有限公司 | Metal air duct connecting device |
| CN214171605U (en) * | 2020-12-30 | 2021-09-10 | 北京国建建筑装饰工程有限公司 | Sealed energy-conserving air pipe structure |
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2021
- 2021-09-15 CN CN202111083181.5A patent/CN113700956B/en active Active
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