CN214224446U

CN214224446U - Flue leakproofness detects air inlet unit

Info

Publication number: CN214224446U
Application number: CN202120340156.XU
Authority: CN
Inventors: 黄健; 袁江
Original assignee: Ningbo Hebang Testing Research Co ltd
Current assignee: Ningbo Hebang Testing Research Co ltd
Priority date: 2021-02-05
Filing date: 2021-02-05
Publication date: 2021-09-17
Anticipated expiration: 2031-02-05

Abstract

The utility model relates to a flue leakproofness detects air inlet unit, the field that the flue detected is related to, it includes the air-supply line, centrifugal fan and blowing pipe, air-supply line and blowing pipe respectively fixed connection in centrifugal fan's both ends and communicate with each other with centrifugal fan, centrifugal fan's one end and external atmosphere communicate with each other are kept away from to the air-supply line, centrifugal fan's one end and public flue intercommunication are kept away from to the blowing pipe, still include the barrel, the barrel is located in the air-supply line, be equipped with a plurality of first ventilation holes that only supply wind and cigarette to pass through on the end wall of barrel near centrifugal fan's one end, the cigarette cake has been placed in the barrel, the cigarette cake butt is on the end wall of barrel near centrifugal fan's one end. The circuit in the centrifugal fan that has improved the cigarette cake of high temperature and has ignited easily causes centrifugal fan's damage, has the problem of great potential safety hazard, and this application has the cigarette cake and receives centrifugal fan's attraction and is blocked by the diapire of barrel to make the cigarette cake be difficult for getting into in the centrifugal fan to ignite the circuit with centrifugal fan and cause the potential safety hazard, improved the effect of the security of instrument.

Description

Flue leakproofness detects air inlet unit

Technical Field

The application relates to the field of flue detection, in particular to a flue tightness detection air inlet device.

Background

At present, newly-built building floor in city is generally higher and higher, and uses the engineering finish fitting as the main, and high-rise residence mostly adopts indoor range hood, tobacco pipe, fire prevention check valve and public flue to link to each other, makes the oil smoke in the kitchen pass through the tobacco pipe and arranges in the middle of the public flue, and the good or bad direct influence flue gas exhaust effect of flue system of the sealing performance of public flue.

In the related art, referring to fig. 8, a flue gas tightness detection air inlet device includes an air inlet pipe 11, a centrifugal fan 1 and a blowing pipe 12, one end of the air inlet pipe 11 is communicated with outside air, the other end of the air inlet pipe 11 is communicated with the centrifugal fan 1, one end of the blowing pipe 12 is communicated with the centrifugal fan 1, the other end of the air inlet pipe 11 is communicated with an air inlet of a public flue, a tobacco cake 22 is placed in the air inlet pipe 11, the centrifugal fan 1 blows air from the inside of the air inlet pipe 11 through the blowing pipe 12 into the public flue, and the smoke blown out from the tobacco cake 22 enters the public flue, and then is observed by a user, and whether the smoke of the tobacco cake 22 flows into a user's room from the public flue is detected.

Aiming at the related technologies, the inventor thinks that the tobacco cake is placed in the air inlet pipe and is easily adsorbed by the centrifugal fan to enter the centrifugal fan, and the high-temperature tobacco cake easily ignites a circuit in the centrifugal fan to cause damage of the centrifugal fan, so that the centrifugal fan has great potential safety hazard.

SUMMERY OF THE UTILITY MODEL

In order to improve the damage that the circuit in the centrifugal fan caused centrifugal fan is easily ignited to the cigarette cake of high temperature, has the problem of great potential safety hazard, this application provides a flue leakproofness detects air inlet unit.

The application provides a flue leakproofness detects air inlet unit adopts following technical scheme:

the utility model provides a flue leakproofness detects air inlet unit, includes air-supply line, centrifugal fan and blowing pipe, air-supply line and blowing pipe respectively fixed connection in centrifugal fan's both ends and communicate with each other with centrifugal fan, centrifugal fan's one end and external atmosphere communicate with each other are kept away from to the air-supply line, centrifugal fan's one end and public flue intercommunication are kept away from to the blowing pipe, still include the barrel, the barrel is located in the air-supply line, be equipped with a plurality of first ventilation holes that only supply wind and cigarette to pass through on the end wall that the barrel is close to centrifugal fan's one end, the muffin has been placed in the barrel, the muffin butt is on the end wall that the barrel is close to centrifugal fan's one end.

Through adopting above-mentioned technical scheme, through setting up the barrel for the cigarette cake receives centrifugal fan's attraction and also can be blocked by the diapire of barrel, thereby makes the difficult circuit that gets into centrifugal fan of cigarette cake ignite and cause the potential safety hazard, has improved the security of instrument.

Optionally, the barrel is kept away from fixedly connected with go-between on the one end wall of centrifugal fan, the go-between butt is kept away from the end wall of centrifugal fan's one end in the air-supply line on, the solid fixed ring of fixed connection on the outer lateral wall of go-between, gu fixed ring cover is located on the air-supply line, fixedly connected with rubber pad on the solid fixed ring's the inside wall, the rubber pad cover is located on the air-supply line and with the outer lateral wall interference fit of air-supply line.

Through adopting above-mentioned technical scheme, the setting of go-between has restricted the position that the barrel got into the air-supply line for the barrel is difficult for removing in the air-supply line, and solid fixed ring cooperation rubber pad is fixed the relative position of barrel and air-supply line, makes the barrel be located the import department of air-supply line all the time, and convenience of customers puts into the barrel with the cigarette cake and lights, lights in the barrel between the cigarette cake can, has improved the convenience and the availability factor of instrument.

Optionally, a cover door is pivoted to the connection ring and covers an opening at one end of the cylinder far away from the centrifugal fan, second ventilation holes only allowing air to pass through are formed in the cover and the door, one side, far away from the pivot joint, of the cover door abuts against the connection ring, and a locking assembly for locking one side, far away from the pivot joint, of the cover door to the connection ring is arranged on one side, far away from the pivot joint, of the cover door.

Through adopting above-mentioned technical scheme, the setting of lid door for the one end that centrifugal fan was kept away from to the barrel is difficult for the cigarette cake breaks away from, has improved the stability in use of cigarette cake.

Optionally, the locking assembly includes a locking rod, the connecting ring is fixedly connected with a support lug, a through hole for the support lug to pass through is formed in the cover door, and a locking hole for the locking rod to pass through is formed in the support lug.

Through adopting above-mentioned technical scheme, the locking lever wears to locate in the locking hole for the journal stirrup is difficult for breaking away from in wearing to locate the hole, and the lid closes the door and leans on the go-between all the time, thereby makes the lid close the door locking, has improved the lid and has closed the stability that the barrel was closed to the door lid.

Optionally, the locking subassembly is still including installation piece and lock pole, the locking lever is the arc setting, the one end fixedly connected with installation piece of locking lever, one side that the installation piece is close to the locking lever is equipped with the mounting groove, the lock pole rotates to be connected in the mounting groove and stretches out outside the mounting groove, the one end butt in the other end of locking lever of mounting groove is kept away from to the lock pole, go back fixedly connected with compression spring on the diapire of mounting groove, compression spring locates the one side that the butt department with the locking lever was kept away from to the lock pole, one side fixedly connected with actuating lever that the lock pole is close to compression spring, compression spring keeps away from the one end butt on the actuating lever of the tank bottom of mounting groove.

By adopting the technical scheme, the compression spring drives the buckling rod to abut against the locking rod, so that the locking rod is matched with the buckling rod and the mounting block to form a closed ring, the locking rod is not easy to separate from the locking hole of the support lug, and the locking stability of the locking assembly is improved.

Optionally, one end of the locking rod, which is close to the locking rod, is provided with a first abutting surface, one end of the locking rod, which is close to the locking rod, is provided with a second abutting surface, and the first abutting surface and the second abutting surface are attached to each other.

Through adopting above-mentioned technical scheme, first butt face butt has increased the area of contact of locking lever and lock pole on the second butt face for lock pole butt is more stable when locking lever is last, has further improved the locking stability of locking subassembly.

Optionally, the installation piece is fixedly connected with a connection rope, and one end of the connection rope far away from the installation piece is fixedly connected to the cover door.

Through adopting above-mentioned technical scheme, connect the setting of rope for locking Assembly is difficult for placing at will and loses when not using, has improved locking Assembly's life.

Optionally, a handle is arranged on one side of the covering door, which is far away from the connecting ring.

Through adopting above-mentioned technical scheme, the setting of handle has increased the area of gripping that the lid closed the door, and convenience of customers closes the door through gripping the handle and rotates, has improved the lid and has closed the door and open and the efficiency that the lid closed.

Optionally, the tobacco cake is a color tobacco cake.

By adopting the technical scheme, the tobacco cake is the colorful tobacco cake, so that the tobacco generated after the tobacco cake is burnt is colorful, the discrimination rate of the tobacco generated by the tobacco cake is increased, convenience is brought to a user to observe and judge the tobacco, and the accuracy of sealing detection is improved.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the cigarette cake is attracted by the centrifugal fan and is blocked by the bottom wall of the barrel, so that the cigarette cake is not easy to enter the centrifugal fan and ignite a circuit of the centrifugal fan to cause potential safety hazards, and the safety of an instrument is improved;

2. the arrangement of the cover door ensures that the tobacco cake is not easy to separate from one end of the cylinder body far away from the centrifugal fan, thereby improving the use stability of the tobacco cake;

3. the cigarette that the cigarette cake burning back produced is the colour, has increased the discrimination of the cigarette that the cigarette cake produced, and convenience of customers observes and judges the cigarette, has improved the accuracy that the leakproofness detected.

Drawings

Fig. 1 is a schematic structural diagram of an air intake device for detecting flue tightness in an embodiment of the present application.

Fig. 2 is a partial plan view of the air inlet duct and the gas generator in the embodiment of the present application.

Fig. 3 is a sectional view taken along the line a-a in fig. 2.

Fig. 4 is a schematic structural diagram of the cylinder and the closing door in the embodiment of the present application.

Fig. 5 is an enlarged schematic view of a portion B in fig. 4.

Fig. 6 is a top view of a locking assembly in an embodiment of the present application.

Fig. 7 is a sectional view taken along line C-C in fig. 6.

Fig. 8 is a schematic structural diagram of a flue sealability detection air intake device in the related art.

Description of reference numerals: 1. a centrifugal fan; 11. an air inlet pipe; 12. a blowpipe; 2. a gas generating device; 21. a barrel; 211. a connecting ring; 212. a fixing ring; 213. a first vent hole; 214. supporting a lug; 2141. a locking hole; 22. a tobacco cake; 23. closing the door; 231. a second vent hole; 232. a handle; 233. a locking assembly; 2331. a locking lever; 23311. a first abutting surface; 2332. mounting blocks; 23321. mounting grooves; 2333. a buckling rod; 23331. a second abutting surface; 23332. a drive rod; 2334. connecting ropes; 2335. a compression spring; 234. perforating holes; 24. and (7) a rubber pad.

Detailed Description

The present application is described in further detail below with reference to figures 1-7.

The embodiment of the application discloses flue leakproofness detects air inlet unit. Referring to fig. 1, the flue sealability detection air inlet device includes an air inlet pipe 11, a centrifugal fan 1, a blowing pipe 12, and a gas generation device 2.

One end of the air inlet pipe 11 is fixedly connected to the centrifugal fan 1, the air inlet pipe 11 is communicated with the centrifugal fan 1, the other end of the air inlet pipe 11 is communicated with the outside atmosphere, so that the centrifugal fan 1 sucks air into the air inlet pipe 11 and then flows into the centrifugal fan 1, one end of the air blowing pipe 12 is fixedly connected to the centrifugal fan 1, the air blowing pipe 12 is communicated with the centrifugal fan 1, the other end of the air blowing pipe 12 is communicated with the public flue, and the air adsorbed in the centrifugal fan 1 flows into the public flue after passing through the air blowing pipe 12.

The gas generating device 2 is arranged in the air inlet pipe 11, and generates visible smoke which enters the public flue along with wind for observation.

Referring to fig. 2 and 3, the gas generator 2 includes a barrel 21, a tobacco cake 22 and a cover door 23, wherein the end of the barrel 21 close to the opening of the air inlet pipe 11 is open, the end of the barrel 21 far away from the opening is a bottom wall, and a plurality of first ventilation holes 213 are arranged on the bottom wall of the barrel 21 for allowing only smoke and wind to pass through. The tobacco cake 22 is a colored tobacco cake 22, and here, the color of the colored tobacco cake 22 is red, so that the smoke entering the public flue is easy to distinguish and has a warning function. The tobacco cake 22 is placed in the cylinder 21, and when the centrifugal fan 1 is started, the tobacco cake 22 abuts against the bottom wall of the cylinder 21 and is not easy to enter the centrifugal fan 1.

The end wall of one end of the barrel body 21 close to the opening is fixedly connected with a connecting ring 211, the connecting ring 211 and the barrel body 21 are coaxially arranged, one side of the connecting ring 211 close to the barrel body 21 is abutted against the end wall of the air inlet pipe 11, and the range of the barrel body 21 entering the air inlet pipe 11 is limited. The fixing ring 212 is fixedly connected to the outer circumferential side wall of the connecting ring 211, the fixing ring 212 is located on one side, close to the air inlet pipe 11, of the connecting ring 211, the fixing ring 212 is sleeved on the air inlet pipe 11, the rubber gasket 24 is fixedly connected to the inner circumferential side wall of the fixing ring 212, the rubber gasket 24 is sleeved on the air inlet pipe 11, the rubber gasket 24 is located between the fixing ring 212 and the air inlet pipe 11, and the rubber gasket 24, the fixing ring 212 and the air inlet pipe 11 are in interference fit, so that the barrel body 21 and the air inlet pipe 11 are fixed.

Referring to fig. 4, the covering door 23 is pivotally connected to the connecting ring 211 at a side far from the barrel 21, the covering door 23 is disposed in a circular shape, the covering door 23 and the connecting ring 211 are disposed coaxially, and the covering door 23 is provided with a second ventilation hole 231 for air to enter. One side of the covering door 23 away from the pivot joint is abutted against the connecting ring 211 to cover the opening of the barrel 21.

One side fixedly connected with handle 232 that closes door 23 and keep away from connecting ring 211 makes things convenient for the user to open and close the door 23 that closes through handle 232.

A locking component 233 is disposed on a side of the covering door 23 away from the pivot joint, so that the side of the covering door 23 away from the pivot joint is abutted against the connecting ring 211 for locking.

Referring to fig. 4 and 5, locking assembly 233 includes a locking bar 2331, a mounting block 2332, and a snap bar 2333.

Fixedly connected with journal stirrup 214 on the connecting ring 211, the perpendicular connecting ring 211 setting of journal stirrup 214, the lid closes and is equipped with the through-going hole 234 on the door 23, closes when the lid closes one side butt on the connecting ring 211 that the door 23 kept away from the pin joint department, the journal stirrup 214 passes through the through-going hole 234 and extends to the lid and close one side that the door 23 kept away from the connecting ring 211. The support lug 214 is provided with a locking hole 2141, the locking rod 2331 is arranged in an arc shape, here, the locking rod 2331 is arranged in a U-arc shape, for example, two ends of the locking rod 2331 are close to each other, the locking rod 2331 is arranged in the locking hole 2141 in a penetrating way, two ends of the locking rod 2331 respectively extend to two sides of the support lug 214, and the locking rod 2331 is abutted against the covering door 23, so that the support lug 214 is not easy to be separated from the penetrating hole 234.

The mounting block 2332 is further fixedly connected with a connecting rope 2334, and one end of the connecting rope 2334, which is far away from the mounting block 2332, is wound and fixed on the covering door 23, so that the mounting block 2332 is not easy to be separated from the covering door 23.

Referring to fig. 6 and 7, the mounting block 2332 is fixedly connected to one end of the locking rod 2331, the other end of the locking rod 2331 is separated from the mounting block 2332, a mounting groove 23321 is formed on one side of the mounting block 2332 close to the locking rod 2331, the buckling rods 2333 are rotatably connected to two opposite side walls of the mounting groove 23321, the buckling rods 2333 abut against one end of the locking rod 2331 far from the fixed end, and the buckling rods 2333 form a closed loop with the locking rod 2331 and the mounting block 2332, so that the locking rod 2331 is not easily detached from the locking hole 2141 of the support lug 214. The end of the latch lever 2333 abutting the latch lever 2331 is provided with a second abutting surface 23331, the end of the latch lever 2331 remote from the fixed end is provided with a first abutting surface 23311, and the first abutting surface 23311 abuts and abuts against the second abutting surface 23331, so that the latch lever 2333 is more stable when abutting against the latch lever 2331.

A compression spring 2335 is further bonded to the bottom wall of the bottom of the mounting groove 23321, the compression spring 2335 is located on one side of the buckling rod 2333 away from the abutting position with the locking rod 2331, a driving rod 23332 is fixedly connected to one side of the buckling rod 2333 close to the compression spring 2335, one side of the compression spring 2335 away from the bottom of the mounting groove 23321 abuts against the driving rod 23332, and the driving rod 23332 is driven to rotate to drive the buckling rod 2333 to move towards one end of the locking rod 2331 away from the fixed end.

The fixing connection mode can be welding, bolt connection or integral arrangement, and the concrete actual situation is the standard.

The implementation principle of the flue leakproofness detection air inlet unit of the embodiment of the application is as follows: the latch lever 2333 is pressed to rotate the latch lever 2333 to disengage from the latch lever 2331, the latch lever 2331 is disengaged from the support lug 214, the handle 232 is held, the lid door 23 is opened, the tobacco cake 22 is placed in the tube and ignited, the lid door 23 is closed, the support lug 214 passes through the through hole 234, the latch lever 2333 is pressed to allow the latch lever 2331 to pass through the support lug 214, then the latch lever 2333 is released, and the compression spring 2335 drives the drive lever 23332 to drive the latch lever 2333 to rotate and abut against the latch lever 2331 to lock the lid door 23.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a flue leakproofness detects air inlet unit, includes air-supply line (11), centrifugal fan (1) and blowing pipe (12), air-supply line (11) and blowing pipe (12) respectively fixed connection in the both ends of centrifugal fan (1) and communicate with each other with centrifugal fan (1), the one end that centrifugal fan (1) were kept away from in air-supply line (11) communicates with each other with external atmosphere, the one end and the public flue intercommunication, its characterized in that of centrifugal fan (1) are kept away from in blowing pipe (12): still include barrel (21), in air-supply line (11) was located in barrel (21), be equipped with a plurality of first ventilation holes (213) that only supply air and cigarette to pass through on the end wall of barrel (21) one end near centrifugal fan (1), cigarette cake (22) have been placed in barrel (21), cigarette cake (22) butt is on the end wall of barrel (21) one end near centrifugal fan (1).

2. The flue tightness detecting air intake device according to claim 1, wherein: fixedly connected with go-between (211) on the one end wall of centrifugal fan (1) is kept away from in barrel (21), go-between (211) butt is kept away from the end wall of the one end of centrifugal fan (1) in air-supply line (11), fixed ring (212) of fixed connection on the outer circumferential side wall of go-between (211), fixed ring (212) cover is located on air-supply line (11), fixedly connected with rubber pad (24) on the inside wall of fixed ring (212), rubber pad (24) cover is located on air-supply line (11) and with the outer circumferential side wall interference fit of air-supply line (11).

3. The flue tightness detecting air intake device according to claim 2, wherein: still the pin joint has the lid to close cylinder (21) on go up in go up (211) and closes door (23) of the lid of keeping away from the opening part of centrifugal fan's (1) one end, be equipped with only second ventilation hole (231) that the air feed passes through on lid and the door, the lid closes one side butt that pivot department was kept away from in door (23) on go up (211), the lid closes one side that pivot department was kept away from in door (23) and is equipped with one side that closes door (23) and keep away from the pivot department and lock locking subassembly (233) on go up (211).

4. The flue tightness detecting air intake device according to claim 3, wherein: the locking assembly (233) comprises a locking rod (2331), a support lug (214) is fixedly connected to the connecting ring (211), a penetrating hole (234) for the support lug (214) to penetrate through is formed in the cover door (23), and a locking hole (2141) for the locking rod (2331) to penetrate through is formed in the support lug (214).

5. The flue tightness detection air intake device according to claim 4, wherein: the locking assembly (233) further includes a mounting block (2332) and a snap rod (2333), the locking rod (2331) is arranged in an arc shape, one end of the locking rod (2331) is fixedly connected with an installation block (2332), one side of the mounting block (2332) close to the locking rod (2331) is provided with a mounting groove (23321), the buckling rod (2333) is rotatably connected in the mounting groove (23321) and extends out of the mounting groove (23321), one end of the buckling rod (2333) far away from the mounting groove (23321) is abutted against the other end of the locking rod (2331), a compression spring (2335) is fixedly connected to the bottom wall of the mounting groove (23321), the compression spring (2335) is arranged on one side of the buckling rod (2333) far away from the abutting part of the locking rod (2331), a driving rod (23332) is fixedly connected to one side of the buckling rod (2333) close to the compression spring (2335), one end of the compression spring (2335) far away from the groove bottom of the mounting groove (23321) abuts against the driving rod (23332).

6. The flue tightness detection air intake device according to claim 5, wherein: one end of the locking rod (2331) close to the buckling rod (2333) is provided with a first abutting surface (23311), one end of the buckling rod (2333) close to the locking rod (2331) is provided with a second abutting surface (23331), and the first abutting surface (23311) is abutted to the second abutting surface (23331).

7. The flue tightness detection air intake device according to claim 5, wherein: the mounting block (2332) is fixedly connected with a connecting rope (2334), and one end, far away from the mounting block (2332), of the connecting rope (2334) is fixedly connected to the covering door (23).

8. The flue tightness detecting air intake device according to claim 3, wherein: and a handle (232) is arranged on one side of the cover door (23) far away from the connecting ring (211).

9. The flue tightness detecting air intake device according to claim 1, wherein: the tobacco cake (22) is a colorful tobacco cake (22).