CN112196835A - Canvas air pipe connecting device of fire-fighting fan - Google Patents

Canvas air pipe connecting device of fire-fighting fan Download PDF

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Publication number
CN112196835A
CN112196835A CN202011028118.7A CN202011028118A CN112196835A CN 112196835 A CN112196835 A CN 112196835A CN 202011028118 A CN202011028118 A CN 202011028118A CN 112196835 A CN112196835 A CN 112196835A
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CN
China
Prior art keywords
ring
limiting
driving
fan
radial
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.)
Withdrawn
Application number
CN202011028118.7A
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Chinese (zh)
Inventor
兀帅帅
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN202011028118.7A priority Critical patent/CN112196835A/en
Publication of CN112196835A publication Critical patent/CN112196835A/en
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/52—Casings; Connections of working fluid for axial pumps
    • F04D29/522—Casings; Connections of working fluid for axial pumps especially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/64—Mounting; Assembling; Disassembling of axial pumps
    • F04D29/644—Mounting; Assembling; Disassembling of axial pumps especially adapted for elastic fluid pumps
    • F04D29/646—Mounting or removal of fans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
    • F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
    • F04D29/703—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps specially for fans, e.g. fan guards

Abstract

The invention discloses a canvas air pipe connecting device of a fire-fighting fan.A circular left connecting ring is formed at the left end of a fan shell; a canvas air pipe connecting device is arranged at the left end of the fan shell; the canvas air pipe connecting device comprises a pair of circular translation limiting rings and a pair of circular outer supporting rings; the pair of translation limiting rings are synchronously arranged left and right; the translation limiting ring on the left side is positioned on the left side of the left support ring; the translation limiting ring on the right side is positioned between the left support ring and the left connecting ring; a plurality of movable limiting seats which are uniformly distributed circumferentially are respectively arranged on the left end surface of the left support ring and the left end surface of the left connecting ring; the movable limiting seat is elastically arranged in a movable manner; a radial limiting insert block is formed on the outer side end face of the movable limiting seat; the center of the inner cylindrical surface of the outer support ring is provided with a circular ring groove-shaped limiting slot for a radial limiting insertion block.

Description

Canvas air pipe connecting device of fire-fighting fan
Technical Field
The invention relates to the technical field of fire-fighting fans, in particular to a canvas air pipe connecting device of a fire-fighting fan.
Background
The fan is a machine for improving gas pressure and discharging gas by means of input mechanical energy, and is a driven fluid machine, the fan is a short-name for Chinese habit on gas compression and gas delivery machines, the fire-fighting fan is an industrial fan which can continuously run for more than 60 minutes at a high temperature of 300 ℃ and is not damaged for 20 hours/time at a temperature of 100 ℃, the air pipe is a pipeline system for air delivery and distribution, the fire-fighting fan is a composite air pipe and an inorganic air pipe, and can be classified according to the cross section shape and the material, the air pipe is made of a stainless steel air pipe, dust and oil stains on the surface of the fire-fighting fan are removed before sealing glue is coated on a seam and a rivet seam, and the air pipe can be divided into a circular air pipe, a rectangular air pipe, a flat circular air pipe and the like according to the cross section shape, wherein the circular air pipe has the smallest resistance but the.
The fire control fan that has now lies in that the tuber pipe is connected and is many flexible coupling, connects through the canvas pipe for the most part, but the too big and vibrating frequency of power of fire control fan is higher, can drop at the during operation canvas pipe, in case drop, the fire control fan of working has just lost the guide effect, dense cigarette just can not be discharged, can give people and bring very big inconvenience, can bring huge economic loss, so propose the fire control fan that prevent wind the pipe and drop and solve the above-mentioned problem that proposes.
Disclosure of Invention
The invention aims to provide a canvas air pipe connecting device of a fire-fighting fan, aiming at the technical problem that a canvas air pipe in flexible connection is easy to accidentally fall.
The technical scheme for solving the technical problems is as follows: a canvas air pipe connecting device of a fire-fighting fan comprises a cylindrical fan shell; a fan motor is arranged in the fan shell; a fan is fixed at the left end of an output shaft of the fan motor; a plurality of cylindrical horizontal connecting rods which are uniformly distributed circumferentially are formed on the left end surface of the fan shell; the left end of the horizontal connecting rod is formed with a circular left supporting ring; the left end of the outer cylindrical surface of the fan shell is formed with a circular left connecting ring; the left end surface of the left connecting ring is flush with the left end surface of the fan shell; a canvas air pipe connecting device is arranged at the left end of the fan shell; the canvas air pipe connecting device comprises a pair of circular translation limiting rings and a pair of circular outer supporting rings; the pair of translation limiting rings are synchronously arranged left and right; the translation limiting ring on the left side is positioned on the left side of the left support ring; the translation limiting ring on the right side is positioned between the left support ring and the left connecting ring; a plurality of movable limiting seats which are uniformly distributed circumferentially are respectively arranged on the left end surface of the left support ring and the left end surface of the left connecting ring; the movable limiting seat is elastically arranged in a movable manner; the movable limiting seat moves left and right along with the pair of translation limiting rings and moves radially; a radial limiting insert block is formed on the outer side end face of the movable limiting seat; a circular ring groove-shaped limiting slot for a radial limiting insertion block is formed in the center of the inner cylindrical surface of the outer support ring; the outer diameters of the left connecting ring, the left supporting ring and the pair of translation limiting rings are the same as the inner diameter of the canvas air pipe; the inner diameter of the outer support ring is the same as the outer diameter of the canvas air pipe.
Preferably, a plurality of radial moving grooves with uniformly distributed circumferences are respectively formed on the left end surface of the left support ring and the left end surface of the left connecting ring; a radial guide rod is formed between the inner side wall and the outer side wall of the radial moving groove; a radial moving block matched with the radial moving groove is formed at the inner side end of the right end face of the moving limiting seat; the radial moving block is arranged in the radial moving groove in a radial moving mode and sleeved on the radial guide rod; the inner side end of the radial guide rod is sleeved with a tension spring; the inner end of the tension spring is fixed on the inner end of the radial moving groove and the outer end of the tension spring is fixed on the inner end face of the radial moving block.
Preferably, the pair of translation limiting rings are connected into a whole through a plurality of connecting rods uniformly distributed on the circumference; a plurality of driving connecting rods which are uniformly distributed circumferentially are formed on the right end surface of the translation limiting ring on the right side; a plurality of connecting through holes for the left connecting rod to pass through are formed on the left connecting ring; the right end of the connecting through hole is formed into a threaded hole; the right end of the driving connecting rod is pivoted with a driving rotating rod; a driving block is formed on the driving rotating rod; an external thread matched with the threaded hole is formed on the cylindrical surface of the driving block; a rotary driving gear is formed at the right end of the driving rotary rod; the right end of the left connecting ring is pivoted with an annular driving ring; a driving gear ring is formed at the right end of the inner cylindrical surface of the driving ring; the driving gear ring is meshed with the rotary driving gear; a right-angle trapezoidal driving plate is formed on the right end face of the translation limiting ring; the movable limiting seat is in a right-angled trapezoid shape; the driving plate is tightly attached to the inclined surfaces of the movable limiting seat and the movable limiting seat; the left movable limiting seat is provided with a movable avoiding hole for the connecting rod to move radially; the movement limiting seat on the right side is provided with a movement avoiding hole for driving the connecting rod to move radially.
Preferably, the driving ring is radially penetrated and screwed with a plurality of limit bolts uniformly distributed on the circumference; the inner side end of the limiting bolt abuts against the outer cylindrical surface of the left connecting ring.
Preferably, the bottom of the fan casing is formed with a pair of support connecting legs which are bilaterally symmetrical.
Preferably, the bottom of the inner cylindrical surface of the fan shell is provided with a motor mounting plate; the fan motor is fixed on the upper end surface of the motor mounting plate through bolts.
Preferably, the right end of the fan shell is formed with a flange.
As the optimization of the technical scheme, the filter screen is installed at the inlet of the right end of the fan shell.
The invention has the beneficial effects that: simple structure, canvas tuber pipe installation is dismantled conveniently to be difficult for dropping, guaranteed its ventilation function.
Drawings
Fig. 1 is a schematic structural view of a cross section of the present invention.
In the figure, 10, fan casing; 100. a radial movement groove; 101. a radial guide rod; 11. a flange plate; 12. a left connecting ring; 13. supporting the connecting feet; 14. a motor mounting plate; 15. a fan motor; 16. a fan; 17. a filter screen; 18. a horizontal connecting rod; 19. a left support ring; 20. a canvas air pipe; 30. a canvas air pipe connecting device; 31. moving the limiting seat; 310. moving the avoidance hole; 311. a radial moving block; 312. a radial limiting insert block; 32. a tension spring; 33. translating the limiting ring; 331. a drive plate; 34. a connecting rod; 35. a drive link; 36. driving the rotating rod; 361. a drive block; 37. a rotary drive gear; 38. a drive ring; 381. a drive gear ring; 382. a limit bolt; 39. an outer support ring; 390. and limiting the slot.
Detailed Description
As shown in fig. 1, a canvas wind pipe connecting device of a fire-fighting fan comprises a cylindrical fan shell 10; a fan motor 15 is arranged in the fan shell 10; a fan 16 is fixed at the left end of the output shaft of the fan motor 15; a plurality of cylindrical horizontal connecting rods 18 which are uniformly distributed circumferentially are formed on the left end face of the fan shell 10; the left end of the horizontal connecting rod 18 is formed with a circular left supporting ring 19; a circular ring-shaped left connecting ring 12 is formed at the left end of the outer cylindrical surface of the fan shell 10; the left end surface of the left connecting ring 12 is flush with the left end surface of the fan shell 10; a canvas air pipe connecting device 30 is arranged at the left end of the fan shell 10; the canvas air pipe connecting device 30 comprises a pair of circular translation limiting rings 33 and a pair of circular outer supporting rings 39; the pair of translation limiting rings 33 are synchronously arranged in a left-right movement mode; the left translation limiting ring 33 is positioned on the left side of the left support ring 19; the right translation limiting ring 33 is positioned between the left support ring 19 and the left connection ring 12; a plurality of movable limiting seats 31 which are uniformly distributed circumferentially are respectively arranged on the left end surface of the left support ring 19 and the left end surface of the left connecting ring 12; the movable limiting seat 31 is elastically arranged in a movable manner; the movable limiting seat 31 moves along with the left and right movement of the pair of translation limiting rings 33 and moves radially; a radial limiting insert block 312 is formed on the outer side end face of the movable limiting seat 31; a circular ring groove-shaped limiting slot 390 for radially limiting the inserting block 312 is formed in the center of the inner cylindrical surface of the outer support ring 39; the outer diameters of the left connecting ring 12, the left supporting ring 19 and the pair of translation limiting rings 33 are the same as the inner diameter of the canvas air pipe 20; the inner diameter of the outer support ring 39 is the same as the outer diameter of the canvas air duct 20.
As shown in fig. 1, a plurality of radial moving grooves 100 with uniformly distributed circumferences are respectively formed on the left end surface of the left support ring 19 and the left end surface of the left connection ring 12; a radial guide rod 101 is formed between the inner side wall and the outer side wall of the radial moving groove 100; a radial moving block 311 matched with the radial moving groove 100 is formed at the inner end of the right end face of the moving limiting seat 31; the radial moving block 311 is arranged in the radial moving groove 100 in a radial moving mode and sleeved on the radial guide rod 101; the inner side end of the radial guide rod 101 is sleeved with a tension spring 32; the inner end of the tension spring 32 is fixed to the inner end of the radial moving groove 100 and the outer end is fixed to the inner end surface of the radial moving block 311.
As shown in fig. 1, a pair of translation limiting rings 33 are connected into a whole by a plurality of connecting rods 34 which are uniformly distributed on the circumference; a plurality of driving connecting rods 35 which are uniformly distributed circumferentially are formed on the right end surface of the translation limiting ring 33 on the right side; a plurality of connecting through holes for the driving connecting rod 35 to pass through left and right are formed on the left connecting ring 12; the right end of the connecting through hole is formed into a threaded hole; the right end of the driving connecting rod 35 is pivoted with a driving rotating rod 36; a driving block 361 is formed on the driving rotating rod 36; an external thread matched with the threaded hole is formed on the cylindrical surface of the driving block 361; a rotation driving gear 37 is formed at the right end of the driving rotating rod 36; the right end of the left connecting ring 12 is pivoted with an annular driving ring 38; a driving gear ring 381 is formed at the right end of the inner cylindrical surface of the driving ring 38; the drive ring gear 381 meshes with the rotation drive gear 37; a right trapezoid-shaped driving plate 331 is formed on the right end face of the translation limiting ring 33; the movable limiting seat 31 is in a right trapezoid shape; the driving plate 331 is closely attached to the inclined surfaces of the movable limiting seat 31; the left movable limiting seat 31 is provided with a movable avoiding hole 310 for the connecting rod 34 to move radially; the right movement limiting seat 31 is provided with a movement avoiding hole 310 for driving the connecting rod 35 to move radially.
As shown in fig. 1, a plurality of circumferentially and uniformly distributed limit bolts 382 are radially inserted and screwed on the driving ring 38; the inner end of the limit bolt 382 abuts against the outer cylindrical surface of the left connection ring 12.
As shown in fig. 1, a pair of support connection legs 13 is formed at the bottom of the fan housing 10 in bilateral symmetry.
As shown in fig. 1, a motor mounting plate 14 is mounted at the bottom of the inner cylindrical surface of the fan casing 10; the fan motor 15 is fixed on the upper end surface of the motor mounting plate 14 by bolts.
As shown in fig. 1, a flange 11 is formed at the right end of the fan housing 10.
As shown in fig. 1, a filter screen 17 is installed at the right inlet of the fan housing 10.
The working principle of the canvas air pipe connecting device of the fire-fighting fan is that;
before installation, the pair of translation limiting rings 33 are positioned at the leftmost end, the limiting bolt 382 is in a screwed state, namely the inner side end of the limiting bolt 382 abuts against the outer cylindrical surface of the left connecting ring 12, and the movable limiting seat 31 is positioned at the innermost side;
during installation, firstly, the pair of outer support rings 39 are sleeved at the right end of the canvas air pipe 20, then the right end of the canvas air pipe 20 is sleeved on the left connecting ring 12, the left support ring 19 and the pair of translation limiting rings 33, and then the outer support rings 39 are positioned at the outer sides of the radial limiting insertion blocks 312; then the limit bolts 382 are unscrewed, then the drive ring 38 is rotated, all the drive rotary rods 36 are rotated through the drive gear ring 381 and the rotary drive gear 37, and due to the threaded holes at the right ends of the connecting through holes and the drive block 361 which are in threaded connection, the rotary rods 36 are driven to rotate to move rightwards, so that the pair of translation limit rings 33 move rightwards, the drive plate 331 drives the movable limit seats 31 to move radially, so that the canvas air pipe 20 at the outer side is abutted and inserted into the limit slots 390 of the outer support rings 39 at the corresponding side by the radial limit insertion blocks 312, the canvas air pipe 20 is installed and disassembled conveniently, and is not easy to drop, and the ventilation function of the canvas air pipe 20 is ensured.
The above description is only a preferred embodiment of the present invention, and for those skilled in the art, there are variations on the embodiment and the application scope according to the idea of the present invention, and the content of the present description should not be construed as a limitation to the present invention.

Claims (8)

1. The utility model provides a canvas tuber pipe connecting device of fire control fan which characterized in that: comprises a cylindrical fan housing (10); a fan motor (15) is arranged in the fan shell (10); a fan (16) is fixed at the left end of an output shaft of the fan motor (15); a plurality of cylindrical horizontal connecting rods (18) which are uniformly distributed on the circumference are formed on the left end surface of the fan shell (10); a circular left support ring (19) is formed at the left end of the horizontal connecting rod (18); a circular ring-shaped left connecting ring (12) is formed at the left end of the outer cylindrical surface of the fan shell (10); the left end surface of the left connecting ring (12) is flush with the left end surface of the fan shell (10); a canvas air pipe connecting device (30) is arranged at the left end of the fan shell (10); the canvas air pipe connecting device (30) comprises a pair of circular translation limit rings (33) and a pair of circular outer support rings (39); the pair of translation limiting rings (33) are synchronously arranged left and right; the left translation limiting ring (33) is positioned on the left side of the left support ring (19); the translation limiting ring (33) on the right side is positioned between the left support ring (19) and the left connecting ring (12); a plurality of movable limiting seats (31) which are uniformly distributed circumferentially are respectively arranged on the left end surface of the left support ring (19) and the left end surface of the left connecting ring (12); the movable limiting seat (31) is elastically arranged in a movable manner; the movable limiting seat (31) moves along with the left and right movement of the pair of translation limiting rings (33) and moves radially; a radial limiting insert block (312) is formed on the outer side end face of the movable limiting seat (31); a limiting slot (390) in the shape of a circular ring groove for radially limiting the inserting block (312) is formed in the center of the inner cylindrical surface of the outer supporting ring (39); the outer diameters of the left connecting ring (12), the left supporting ring (19) and the pair of translation limiting rings (33) are the same as the inner diameter of the canvas air pipe (20); the inner diameter of the outer support ring (39) is the same as the outer diameter of the canvas air pipe (20).
2. A sail cloth hose connection for a fire fighting blower as defined in claim 1, wherein: a plurality of radial moving grooves (100) which are uniformly distributed circumferentially are respectively formed on the left end surface of the left support ring (19) and the left end surface of the left connecting ring (12); a radial guide rod (101) is formed between the inner side wall and the outer side wall of the radial moving groove (100); a radial moving block (311) matched with the radial moving groove (100) is formed at the inner end of the right end face of the moving limiting seat (31); the radial moving block (311) is arranged in the radial moving groove (100) in a radial moving mode and sleeved on the radial guide rod (101); the inner side end of the radial guide rod (101) is sleeved with a tension spring (32); the inner end of the tension spring (32) is fixed on the inner end of the radial moving groove (100) and the outer end is fixed on the inner end surface of the radial moving block (311).
3. A sail cloth hose connection for a fire fighting blower as defined in claim 1, wherein: the translation limiting rings (33) are connected into a whole through a plurality of connecting rods (34) which are uniformly distributed on the circumference; a plurality of driving connecting rods (35) which are uniformly distributed circumferentially are formed on the right end surface of the translation limiting ring (33) on the right side; a plurality of connecting through holes for the left and right penetration of the driving connecting rod (35) are formed on the left connecting ring (12); the right end of the connecting through hole is formed into a threaded hole; the right end of the driving connecting rod (35) is pivoted with a driving rotating rod (36); a driving block (361) is formed on the driving rotating rod (36); an external thread matched with the threaded hole is formed on the cylindrical surface of the driving block (361); a rotary driving gear (37) is formed at the right end of the driving rotary rod (36); the right end of the left connecting ring (12) is pivoted with an annular driving ring (38); a driving gear ring (381) is formed at the right end of the inner cylindrical surface of the driving ring (38); the drive ring gear (381) is meshed with the rotary drive gear (37); a right trapezoid-shaped driving plate (331) is formed on the right end face of the translation limiting ring (33); the movable limiting seat (31) is in a right-angled trapezoid shape; the driving plate (331) is closely attached to the inclined surfaces of the movable limiting seat (31); the left movable limiting seat (31) is provided with a movable avoiding hole (310) for the connecting rod (34) to move in the radial direction; the right movable limiting seat (31) is provided with a movable avoiding hole (310) for driving the connecting rod (35) to move radially.
4. A sail cloth hose connection for a fire fighting blower as defined in claim 3, wherein: a plurality of limit bolts (382) which are uniformly distributed on the circumference are radially penetrated and screwed on the driving ring (38); the inner end of the limit bolt (382) abuts against the outer cylindrical surface of the left connecting ring (12).
5. A sail cloth hose connection for a fire fighting blower as defined in claim 1, wherein: a pair of bilaterally symmetrical supporting and connecting feet (13) are formed at the bottom of the fan shell (10).
6. A sail cloth hose connection for a fire fighting blower as defined in claim 1, wherein: a motor mounting plate (14) is arranged at the bottom of the inner cylindrical surface of the fan shell (10); the fan motor (15) is fixed on the upper end surface of the motor mounting plate (14) through bolts.
7. A sail cloth hose connection for a fire fighting blower as defined in claim 1, wherein: the right end of the fan shell (10) is formed with a flange (11).
8. A sail cloth hose connection for a fire fighting blower as defined in claim 1, wherein: a filter screen (17) is arranged at the inlet of the right end of the fan shell (10).
CN202011028118.7A 2020-09-26 2020-09-26 Canvas air pipe connecting device of fire-fighting fan Withdrawn CN112196835A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011028118.7A CN112196835A (en) 2020-09-26 2020-09-26 Canvas air pipe connecting device of fire-fighting fan

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011028118.7A CN112196835A (en) 2020-09-26 2020-09-26 Canvas air pipe connecting device of fire-fighting fan

Publications (1)

Publication Number Publication Date
CN112196835A true CN112196835A (en) 2021-01-08

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011028118.7A Withdrawn CN112196835A (en) 2020-09-26 2020-09-26 Canvas air pipe connecting device of fire-fighting fan

Country Status (1)

Country Link
CN (1) CN112196835A (en)

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1603127A1 (en) * 1989-01-16 1990-10-30 Всесоюзный научно-исследовательский и конструкторско-технологический институт резиновой промышленности Undetachable coupling of high-pressure hose with connection fittings
SU1629677A1 (en) * 1989-05-12 1991-02-23 Специальное Конструкторско-Технологическое Бюро Главмосинжстроя При Мосгорисполкоме Hose end coupling
JP2007120724A (en) * 2005-10-31 2007-05-17 Tokai Rubber Ind Ltd Connecting structure of hose fitting
KR20110001999A (en) * 2010-12-30 2011-01-06 이방수 Jointing structure of airconditioner hose
CN103542213A (en) * 2013-08-19 2014-01-29 泉州市三星消防设备有限公司 Fire hose provided with press fitting buckles
CN103612481A (en) * 2013-10-30 2014-03-05 高斯图文印刷系统（中国）有限公司 Printing plate tensioning air bag of printer
CN204267940U (en) * 2014-10-28 2015-04-15 扬州妙极机械制造有限公司 A kind of PVC hose connection set
CN208330844U (en) * 2018-04-03 2019-01-04 重庆市环境保护工程设计研究院有限公司 A kind of fan inlet connection maintenance unit
CN209083616U (en) * 2018-08-30 2019-07-09 广州市耀安实业发展有限公司 A kind of firefighting fan that anti-air hose is fallen
CN209180119U (en) * 2018-12-14 2019-07-30 安徽爱戈德生物科技有限公司 A kind of soft connection device of aspiration channel canvas of air-introduced machine
CN110529663A (en) * 2019-09-11 2019-12-03 杨希敏 A kind of light air pipe connection based on clip fastening

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1603127A1 (en) * 1989-01-16 1990-10-30 Всесоюзный научно-исследовательский и конструкторско-технологический институт резиновой промышленности Undetachable coupling of high-pressure hose with connection fittings
SU1629677A1 (en) * 1989-05-12 1991-02-23 Специальное Конструкторско-Технологическое Бюро Главмосинжстроя При Мосгорисполкоме Hose end coupling
JP2007120724A (en) * 2005-10-31 2007-05-17 Tokai Rubber Ind Ltd Connecting structure of hose fitting
KR20110001999A (en) * 2010-12-30 2011-01-06 이방수 Jointing structure of airconditioner hose
CN103542213A (en) * 2013-08-19 2014-01-29 泉州市三星消防设备有限公司 Fire hose provided with press fitting buckles
CN103612481A (en) * 2013-10-30 2014-03-05 高斯图文印刷系统（中国）有限公司 Printing plate tensioning air bag of printer
CN204267940U (en) * 2014-10-28 2015-04-15 扬州妙极机械制造有限公司 A kind of PVC hose connection set
CN208330844U (en) * 2018-04-03 2019-01-04 重庆市环境保护工程设计研究院有限公司 A kind of fan inlet connection maintenance unit
CN209083616U (en) * 2018-08-30 2019-07-09 广州市耀安实业发展有限公司 A kind of firefighting fan that anti-air hose is fallen
CN209180119U (en) * 2018-12-14 2019-07-30 安徽爱戈德生物科技有限公司 A kind of soft connection device of aspiration channel canvas of air-introduced machine
CN110529663A (en) * 2019-09-11 2019-12-03 杨希敏 A kind of light air pipe connection based on clip fastening

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