CN112325017A - Air duct butt joint device for ventilation construction - Google Patents
Air duct butt joint device for ventilation construction Download PDFInfo
- Publication number
- CN112325017A CN112325017A CN202011316999.2A CN202011316999A CN112325017A CN 112325017 A CN112325017 A CN 112325017A CN 202011316999 A CN202011316999 A CN 202011316999A CN 112325017 A CN112325017 A CN 112325017A
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- China
- Prior art keywords
- air duct
- positioning
- rod
- butt joint
- linkage telescopic
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Classifications
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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
- F16L23/00—Flanged joints
- F16L23/12—Flanged joints specially adapted for particular pipes
- F16L23/14—Flanged joints specially adapted for particular pipes for rectangular pipes
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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
- F16L23/00—Flanged joints
- F16L23/02—Flanged joints the flanges being connected by members tensioned axially
- F16L23/036—Flanged joints the flanges being connected by members tensioned axially characterised by the tensioning members, e.g. specially adapted bolts or C-clamps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/02—Ducting arrangements
- F24F13/0209—Ducting arrangements characterised by their connecting means, e.g. flanges
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Joints Allowing Movement (AREA)
- Duct Arrangements (AREA)
Abstract
The invention discloses an air duct butt joint device for ventilation construction, relates to the technical field of air duct butt joint devices, and solves the problems that the existing air duct is high in integrity after butt joint, so that the air duct cannot be independently disassembled in a single section after the air duct is installed, and the disassembly and maintenance of a certain air duct are troublesome. An air duct butt joint device for ventilation construction comprises a butt joint air duct; the butt joint air duct is inserted outside the main air duct. The device docks two main wind channels through the one end outside of butt joint wind channel grafting in main wind channel, and the device's butt joint wind channel can independently stretch out and draw back to the completion is to the dismantlement of the inside main wind channel of one end butt joint wind channel, can be to the independent dismantlement of the main wind channel of single section after the air duct system installation is accomplished, thereby makes things convenient for air duct system's maintenance and maintenance.
Description
Technical Field
The invention belongs to the technical field of air duct butt joint devices, and particularly relates to an air duct butt joint device for ventilation construction.
Background
The ventilation engineering is a general name of air supply, air exhaust, dust removal, pneumatic transmission and system engineering for preventing and exhausting smoke, and a plurality of air channels are butted in the current ventilation engineering so as to realize the air supply function of a ventilator, so that the ventilation, dust exhaust, cooling and other operations can be performed on the interior of a building.
If the application number is: CN201611027655.3 discloses a device for realizing the butt joint/separation of a temperature adjusting unit and a launch canister. Its purpose is in order to provide a simple structure, the air volume is big, environmental suitability is strong and can realize launching tube and the sealed interfacing apparatus of wind channel of the quick butt joint separation of thermoregulation unit. The air channel sealing and butting device comprises an air guide cover (1) and an air cap (2), wherein the upper end of the air guide cover is fixedly and hermetically connected with an air channel (3) of the emission tube, the lower end of the air guide cover is fixedly connected with a rubber sealing ring (4), the air cap is fixedly arranged at a hatch opening of a temperature regulating unit (5), the air guide cover can be sealed at the hatch opening of the temperature regulating unit through the rubber sealing ring, and when the air guide cover is sealed at the hatch opening of the temperature regulating unit through the rubber sealing ring, the temperature regulating unit can be communicated with the air channel of the emission tube through the air cap and the air guide.
The mount is passed through rivet connection with the both ends in wind channel more during current wind channel butt joint, thereby fix two mounts through the screw and realize the butt joint in wind channel, the wind channel wholeness of this kind of butt joint mode is higher for after the wind channel installation is accomplished, the unable solitary single section in wind channel is dismantled, and is more troublesome when dismantling the maintenance to a certain section of wind channel, and the step is loaded down with trivial details, and the practicality is not high.
In view of the above, research and improvement are made on the existing structure and defects, and an air duct docking device for ventilation construction is provided, so as to achieve the purpose of higher practical value.
Disclosure of Invention
In order to solve the technical problems, the invention provides an air duct butt joint device for ventilation construction, which aims to solve the problems that two ends of an air duct are connected with a fixing frame through rivets and the two fixing frames are fixed through screws so as to realize butt joint of the air duct in the existing air duct butt joint mode, the air duct integrity of the butt joint mode is high, the air duct cannot be independently disassembled in a single section after the air duct is installed, the disassembly and maintenance of a certain air duct are troublesome, the steps are complicated, and the practicability is low.
The invention relates to an air duct butt joint device for ventilation construction, which is realized by the following specific technical means:
an air duct butt joint device for ventilation construction comprises a butt joint air duct, a positioning air duct, a linkage telescopic rod, a driven sprocket, a positioning transmission rod and a positioning pin rod; the butt joint air duct is inserted outside the main air duct; two ends of the positioning air duct are respectively inserted into the butt joint air ducts, and the positioning air ducts are screwed and fixed on the corresponding mounting bridge frames through screws; one end of the linkage telescopic rod is rotatably connected to the middle part in the positioning air duct mounting groove; the other end of the linkage telescopic rod is inserted in the middle of a connecting plate of the butt joint air channel; the driven chain wheels are rotatably connected to the four corners inside the positioning air duct mounting groove; the positioning transmission rod is inserted in the mounting block at the bottom of the positioning air channel; a hexagonal groove is formed in the top surface of the cap body at one end of the positioning transmission rod; the positioning pin rod is inserted into the rod body of the positioning transmission rod; the positioning pin rod is connected to the outer end of the positioning transmission rod through a pull rope.
Furthermore, a transmission chain wheel is arranged at one end of the rod body of the linkage telescopic rod, one transmission chain wheel is arranged on each of the four side faces of the positioning air channel of the linkage telescopic rod, and the transmission chain wheels and the driven chain wheels are in chain transmission.
Furthermore, the rod body of linkage telescopic link is the threaded rod design, and the connecting plate middle part of the side in butt joint wind channel is equipped with the screw hole, and the linkage telescopic link passes through the screw thread of the rod body and screws up inside the screw hole in butt joint wind channel.
Furthermore, two groups of linkage telescopic rods and two groups of driven chain wheels are arranged on the outer side of the positioning air channel, and the two groups of linkage telescopic rods and the two groups of driven chain wheels are symmetrically designed.
Furthermore, a transmission gear is arranged on the outer side of the transmission chain wheel of the linkage telescopic rod at the bottom of the positioning air duct, and a positioning gear is arranged in the middle of a rod body of the positioning transmission rod.
Furthermore, the length of the wheel body of the positioning gear is larger than the distance between the outer sides of the transmission gears of the two symmetrical linkage telescopic rods.
Furthermore, a rod body at one end of the positioning transmission rod is provided with three positioning holes, the positioning pin rod is inserted into the positioning holes, and a positioning top spring is sleeved outside the rod body at the other end of the positioning transmission rod.
Compared with the prior art, the invention has the following beneficial effects:
the device docks two main wind channels through the one end outside of butt joint wind channel grafting in main wind channel, and the device's butt joint wind channel can independently stretch out and draw back to the completion is to the dismantlement of the inside main wind channel in one end butt joint wind channel, can be to the independent dismantlement in single section main wind channel after the air duct system installation is accomplished, thereby makes things convenient for air duct system's maintenance and maintenance, has improved the device's practicality and stability.
Firstly, when the positioning gear rotates, the transmission gear can drive the linkage telescopic rod to rotate, under the matching action of the end part transmission chain wheel of the linkage telescopic rod and the driven chain wheel, the synchronous rotation of four linkage telescopic rods on one side can be realized, so that the threads of the rod body of the linkage telescopic rod drive the butt joint air channel to stretch through the threaded hole of the butt joint air channel, the installation and the disassembly of the main air channel at the end are completed, the operation is convenient and flexible, and the flexibility and the practicability of the device are improved.
Secondly, the rod body of the positioning transmission rod of the device is provided with three positioning holes, when the positioning pin rod is inserted into the leftmost positioning hole, the positioning gear is positioned at the rightmost side inside the positioning air duct installation block under the action of the positioning top spring, the positioning gear can independently transmit with a transmission gear at the bottom of the right side linkage telescopic rod, so that the right side linkage telescopic rod can only be driven to rotate to realize the installation and the disassembly of the right side main air duct when the positioning transmission rod is rotated, otherwise, the positioning gear can only transmit with the left side linkage telescopic rod when the positioning pin rod is inserted into the rightmost positioning hole, so that the left side linkage telescopic rod can only be driven to rotate to realize the installation and the disassembly of the left side main air duct when the positioning transmission rod is rotated, the main air ducts at both sides of the device can be independently disassembled and installed, and the device can independently disassemble a single-section main air duct, thereby make things convenient for air duct system's maintenance and maintenance, improved the device's practicality and stability.
Furthermore, when the positioning pin rod is inserted into the positioning hole in the middle of the positioning transmission rod, because the length of the wheel body of the positioning gear is greater than the distance between the outer sides of the transmission gears of the two symmetrical linkage telescopic rods, when the positioning transmission rod is rotated at the moment, the positioning gear of the positioning transmission rod drives the linkage telescopic rods on two sides to rotate simultaneously through the transmission gears, so that the butt joint air channels on two sides can be synchronously oppositely stretched, batch disassembly and assembly of the main air channels inside the air channel system are facilitated, and the flexibility and the adaptability of the device are improved.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic structural view of the bottom of fig. 1 according to the present invention.
Fig. 3 is a schematic view of the internal structure of the present invention.
FIG. 4 is a schematic view of the structure of the right docking air duct of the present invention after independent retraction.
FIG. 5 is a schematic structural diagram of the positioning gear and two transmission gears simultaneously transmitting the present invention.
Fig. 6 is an enlarged schematic structural view of a portion a in fig. 2 according to the present invention.
Fig. 7 is an enlarged structural view of the part B in fig. 3 according to the present invention.
In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:
1. a main air duct; 2. butting an air duct; 3. positioning an air duct; 4. linking the telescopic rod; 5. a driven sprocket; 6. positioning the transmission rod; 7. positioning the pin rod; 401. a drive sprocket; 4011. a transmission gear; 601. positioning a gear; 602. positioning holes; 603. and positioning the top spring.
Detailed Description
The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example (b):
as shown in figures 1 to 7:
the invention provides an air duct butt joint device for ventilation construction, which comprises a butt joint air duct 2, a positioning air duct 3, a linkage telescopic rod 4, a driven sprocket 5, a positioning transmission rod 6 and a positioning pin rod 7, wherein the butt joint air duct is connected with the positioning air duct; the butt joint air duct 2 is inserted outside the main air duct 1; two ends of the positioning air duct 3 are respectively inserted into the butt joint air ducts 2, and the positioning air duct 3 is screwed and fixed on the corresponding mounting bridge frame through screws; a transmission gear 4011 is arranged on the outer side of a transmission chain wheel 401 of a linkage telescopic rod 4 at the bottom of the positioning air duct 3, and a positioning gear 601 is arranged in the middle of a rod body of the positioning transmission rod 6, so that the positioning gear 601 can drive the linkage telescopic rod 4 to rotate through the transmission gear 4011; one end of the linkage telescopic rod 4 is rotatably connected to the middle part in the mounting groove of the positioning air duct 3; the other end of the linkage telescopic rod 4 is inserted in the middle of the connecting plate of the butt joint air duct 2; one end of the rod body of the linkage telescopic rod 4 is provided with a transmission chain wheel 401, one linkage telescopic rod 4 is arranged on each of four side surfaces of the positioning air channel 3, and the transmission chain wheel 401 and the driven chain wheel 5 are in chain transmission; two groups of linkage telescopic rods 4 and driven chain wheels 5 are arranged on the outer side of the positioning air channel 3, and the two groups of linkage telescopic rods 4 and driven chain wheels 5 are symmetrically designed, so that when the positioning gear 601 of the positioning transmission rod 6 drives the linkage telescopic rods 4 on the two sides to rotate simultaneously through the transmission gear 4011, the butt air channels 2 on the two sides can be synchronously extended and retracted oppositely, batch disassembly and assembly of the main air channels 1 in the air channel system are facilitated, and the flexibility and the adaptability of the device are improved; the driven chain wheel 5 is rotationally connected to the four corners inside the mounting groove of the positioning air duct 3; the positioning transmission rod 6 is inserted in the mounting block at the bottom of the positioning air duct 3; a hexagonal groove is formed in the top surface of the cap body at one end of the positioning transmission rod 6; the positioning pin rod 7 is inserted into the rod body of the positioning transmission rod 6; the positioning pin rod 7 is connected to the outer end of the positioning transmission rod 6 through a pull rope.
Wherein, the body of rod of linkage telescopic link 4 is the threaded rod design, and the connecting plate middle part of the side in butt joint wind channel 2 is equipped with the screw hole, linkage telescopic link 4 screws up inside the screw hole in butt joint wind channel 2 through the screw thread of the body of rod, this design makes when linkage telescopic link 4 rotates, thereby the screw thread of the 4 bodies of rod of linkage telescopic link drives butt joint wind channel 2 through the screw hole in butt joint wind channel 2 and stretches out and draws back, accomplish installation and the dismantlement to this end main wind channel 1, convenient operation is nimble, make the device can be to the independent dismantlement in single section main wind channel 1 after the air duct system installation is accomplished, thereby make things convenient for air duct system's maintenance and maintenance, the flexibility and.
Wherein, the wheel body length of the positioning gear 601 is greater than the outer side distance of the transmission gears 4011 of the two symmetrical linkage telescopic rods 4, the design ensures that when the positioning pin rod 7 is inserted into the positioning hole 602 at the middle part of the positioning transmission rod 6, because the wheel body length of the positioning gear 601 is greater than the outer side distance of the transmission gears 4011 of the two symmetrical linkage telescopic rods 4, when the positioning transmission rod 6 is rotated at the moment, the positioning gear 601 of the positioning transmission rod 6 drives the linkage telescopic rods 4 at two sides to rotate simultaneously through the transmission gears 4011, the butt joint air ducts 2 at two sides can be synchronously stretched in opposite directions, the batch disassembly and assembly of the main air ducts 1 inside the air duct system are facilitated, and the flexibility and the.
Wherein, the rod body at one end of the positioning transmission rod 6 is provided with three positioning holes 602, the positioning pin rod 7 is inserted into the positioning holes 602, the positioning transmission rod 6 is sleeved with the positioning top spring 603 outside the rod body at the other end of the positioning hole 602, the design is such that when the positioning pin rod 7 is inserted into the leftmost positioning hole 602, the positioning gear 601 is positioned at the rightmost side inside the mounting block of the positioning air duct 3 under the action of the positioning top spring 603, at this time, the positioning gear 601 can independently transmit with the transmission gear 4011 at the bottom of the right side linkage telescopic rod 4, so that when the positioning transmission rod 6 is rotated, the right side linkage telescopic rod 4 can only be driven to rotate to realize the mounting and dismounting of the right side main air duct 1, otherwise when the positioning pin rod 7 is inserted into the rightmost positioning hole 602, the positioning gear 601 can only transmit with the left side linkage telescopic rod 4, so that when the positioning transmission rod 6 is rotated, the, make the main wind channel 1 homoenergetic of the device both sides independently dismantle and install for the device can be to the independent dismantlement of the main wind channel 1 of single section after the air duct system installation is accomplished, thereby make things convenient for air duct system's maintenance and maintenance, improved the device's practicality and stability.
The specific use mode and function of the embodiment are as follows:
in the invention, the device is inserted outside one end of a main air duct 1 through a butt air duct 2 to butt two main air ducts 1, and the butt air duct 2 of the device can independently extend and retract so as to finish the disassembly of the main air duct 1 inside the butt air duct 2 at one end, and after an air duct system is installed, a single-section main air duct 1 can be independently disassembled so as to facilitate the maintenance and the maintenance of the air duct system, a rod body of a positioning transmission rod 6 of the device is provided with three positioning holes 602, when a positioning pin rod 7 is inserted inside the leftmost positioning hole 602, a positioning gear 601 is positioned at the rightmost side inside an installation block of the positioning air duct 3 under the action of a positioning top spring 603, at the moment, the positioning gear 601 can independently transmit with a transmission gear 4011 at the bottom of a right-side linkage telescopic rod 4, when the positioning gear 601 drives the linkage telescopic rod 4 to rotate through the transmission gear 4011, under the matching action of a transmission chain wheel 401 at, the synchronous rotation of the four linkage telescopic rods 4 on one side can be realized, so that the threads of the rod bodies of the linkage telescopic rods 4 drive the butt joint air channel 2 to stretch through the threaded holes of the butt joint air channel 2, the installation and the disassembly of the main air channel 1 at the end are finished, the operation is convenient and flexible, only the right linkage telescopic rod 4 can be driven to rotate to realize the installation and the disassembly of the main air channel 1 on the right side when the positioning transmission rod 6 is rotated, otherwise, when the positioning pin rod 7 is inserted into the rightmost positioning hole 602, the positioning gear 601 can only drive the linkage telescopic rod 4 on the left side to transmit, only the linkage telescopic rod 4 on the left side can be driven to rotate to realize the installation and the disassembly of the main air channel 1 on the left side when the positioning transmission rod 6 is rotated, the main air channels 1 on the two sides of the device can be independently disassembled and installed, the device can independently disassemble, when the positioning pin rod 7 is inserted into the positioning hole 602 in the middle of the positioning transmission rod 6, because the length of the wheel body of the positioning gear 601 is greater than the distance between the outer sides of the transmission gears 4011 of the two symmetrical linkage telescopic rods 4, when the positioning transmission rod 6 is rotated at the moment, the positioning gear 601 of the positioning transmission rod 6 drives the linkage telescopic rods 4 on the two sides to rotate simultaneously through the transmission gears 4011, so that the butt joint air ducts 2 on the two sides can be synchronously extended in opposite directions, and batch disassembly and assembly of the main air ducts 1 in the air duct system are facilitated.
The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (7)
1. The utility model provides an air duct interfacing apparatus for ventilation construction which characterized in that: the device comprises a butt joint air duct (2), a positioning air duct (3), a linkage telescopic rod (4), a driven chain wheel (5), a positioning transmission rod (6) and a positioning pin rod (7); the butt joint air duct (2) is inserted outside the main air duct (1); two ends of the positioning air duct (3) are respectively inserted into the butt joint air ducts (2), and the positioning air duct (3) is screwed and fixed on the corresponding mounting bridge frame through screws; one end of the linkage telescopic rod (4) is rotatably connected to the middle part in the mounting groove of the positioning air duct (3); the other end of the linkage telescopic rod (4) is inserted in the middle of a connecting plate of the butt joint air duct (2); the driven chain wheel (5) is rotatably connected to the four corners inside the mounting groove of the positioning air duct (3); the positioning transmission rod (6) is inserted in the mounting block at the bottom of the positioning air duct (3); a hexagonal groove is formed in the top surface of the cap body at one end of the positioning transmission rod (6); the positioning pin rod (7) is inserted into the rod body of the positioning transmission rod (6); the positioning pin rod (7) is connected to the outer end of the positioning transmission rod (6) through a pull rope.
2. The air duct interfacing apparatus for ventilating construction as set forth in claim 1, wherein: the utility model discloses a wind tunnel four sides in the air duct (3) that link rod (4) are equipped with drive sprocket (401) in the body of rod one end of link rod (4), and link rod (4) all are equipped with one in four sides in location wind channel (3), and drive sprocket (401) pass through chain drive with driven sprocket (5).
3. The air duct interfacing apparatus for ventilating construction as set forth in claim 1, wherein: the rod body of linkage telescopic link (4) is the threaded rod design, and the connecting plate middle part of the side in butt joint wind channel (2) is equipped with the screw hole, and linkage telescopic link (4) are twisted through the screw thread of the rod body and are connect inside the screw hole in butt joint wind channel (2).
4. The air duct interfacing apparatus for ventilating construction as set forth in claim 1, wherein: the linkage telescopic rods (4) and the driven chain wheels (5) are arranged in two groups on the outer side of the positioning air duct (3), and the two groups of linkage telescopic rods (4) and the driven chain wheels (5) are symmetrically designed.
5. The air duct interfacing apparatus for ventilating construction as set forth in claim 1, wherein: the outer side of the transmission chain wheel (401) of the positioning air duct (3) bottom linkage telescopic rod (4) is provided with a transmission gear (4011), and the middle of the rod body of the positioning transmission rod (6) is provided with a positioning gear (601).
6. The air duct interfacing apparatus for ventilating construction as set forth in claim 5, wherein: the length of the wheel body of the positioning gear (601) is larger than the outer side distance of the transmission gears (4011) of the two symmetrical linkage telescopic rods (4).
7. The air duct interfacing apparatus for ventilating construction as set forth in claim 1, wherein: the positioning device is characterized in that a rod body at one end of the positioning transmission rod (6) is provided with three positioning holes (602), a positioning pin rod (7) is inserted into the positioning holes (602), and a positioning top spring (603) is sleeved outside the rod body at the other end of the positioning transmission rod (6) positioned in the positioning holes (602).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011316999.2A CN112325017B (en) | 2020-11-23 | 2020-11-23 | Air duct butt joint device for ventilation construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011316999.2A CN112325017B (en) | 2020-11-23 | 2020-11-23 | Air duct butt joint device for ventilation construction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112325017A true CN112325017A (en) | 2021-02-05 |
| CN112325017B CN112325017B (en) | 2022-05-06 |
Family
ID=74322015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011316999.2A Active CN112325017B (en) | 2020-11-23 | 2020-11-23 | Air duct butt joint device for ventilation construction |
Country Status (1)
| Country | Link |
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| CN (1) | CN112325017B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113339605A (en) * | 2021-08-06 | 2021-09-03 | 南通联泷装配式建筑科技有限公司 | Quick supporting and reinforcing device for floor conveying pump pipe |
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| EP2273175A1 (en) * | 2009-07-08 | 2011-01-12 | Parker-Hannifin Corporation | Sealing joint for connecting adjoining duct pieces in an engine exhaust system |
| CN203907027U (en) * | 2014-06-10 | 2014-10-29 | 宁波中安锻造有限公司 | Pipe clamp |
| CN208535389U (en) * | 2018-07-11 | 2019-02-22 | 佛山市汇灿机械设备有限公司 | A kind of pipeline quick-make connector for repairing of speedily carrying out rescue work |
| CN111173976A (en) * | 2020-02-22 | 2020-05-19 | 孙庆峰 | Three-way valve |
| CN211118160U (en) * | 2019-12-10 | 2020-07-28 | 刘华 | Water supply and drainage structure of rigid-flexible composite sleeve |
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2020
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2273175A1 (en) * | 2009-07-08 | 2011-01-12 | Parker-Hannifin Corporation | Sealing joint for connecting adjoining duct pieces in an engine exhaust system |
| CN203907027U (en) * | 2014-06-10 | 2014-10-29 | 宁波中安锻造有限公司 | Pipe clamp |
| CN208535389U (en) * | 2018-07-11 | 2019-02-22 | 佛山市汇灿机械设备有限公司 | A kind of pipeline quick-make connector for repairing of speedily carrying out rescue work |
| CN211118160U (en) * | 2019-12-10 | 2020-07-28 | 刘华 | Water supply and drainage structure of rigid-flexible composite sleeve |
| CN111173976A (en) * | 2020-02-22 | 2020-05-19 | 孙庆峰 | Three-way valve |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113339605A (en) * | 2021-08-06 | 2021-09-03 | 南通联泷装配式建筑科技有限公司 | Quick supporting and reinforcing device for floor conveying pump pipe |
| CN113339605B (en) * | 2021-08-06 | 2021-10-01 | 南通联泷装配式建筑科技有限公司 | Quick supporting and reinforcing device for floor conveying pump pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112325017B (en) | 2022-05-06 |
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