CN211924591U - Dust keeper of waste gas draught fan - Google Patents
Dust keeper of waste gas draught fan Download PDFInfo
- Publication number
- CN211924591U CN211924591U CN202020437844.3U CN202020437844U CN211924591U CN 211924591 U CN211924591 U CN 211924591U CN 202020437844 U CN202020437844 U CN 202020437844U CN 211924591 U CN211924591 U CN 211924591U
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Abstract
The utility model relates to a dust keeper of waste gas draught fan relates to the technical field of waste gas draught fan, which comprises a bod, the organism is provided with the air inlet end, air inlet lateral wall rotates and is connected with the installing frame, the joint has filtering piece in the installing frame, filter piece fixedly connected with and be used for will filtering the buckle subassembly of piece joint in the installing frame, buckle subassembly is connected in the installing frame, air inlet end lateral wall fixedly connected with is used for will filtering the closed mechanism who holds in the air inlet, closed mechanism can dismantle and connect in the installing frame. The utility model discloses the effect that has extension draught fan life.
Description
Technical Field
The utility model belongs to the technical field of the technique of waste gas draught fan and specifically relates to a dust keeper of waste gas draught fan is related to.
Background
The induced draft fan is mainly used for ventilation and induced draft of industrial waste gas, and the induced draft fan is a device for generating negative pressure through rotation of an impeller and further extracting air from a system.
The traditional Chinese patent with publication number CN103629123A discloses a high-temperature draught fan, which comprises a draught fan main body, wherein the draught fan main body is provided with a draught fan air outlet and an impeller, the impeller is provided with an impeller transmission shaft disc, an impeller fan blade and a fan blade folding sheet, one side of the draught fan main body is provided with a motor, and the motor is provided with a motor transmission shaft disc. The invention has the beneficial effects that: the air quantity of the draught fan can be maximized when the motor rotates at low power, so that the effects of saving energy and prolonging the service life of the motor are achieved, and the cost of enterprises is reduced.
The above prior art solutions have the following drawbacks: because the induced draft fan usually carries out the induced draft to waste gas, nevertheless there are a lot of dusts in waste gas, the sucked dust can cause impeller transmission shaft dish lubrication failure, can not rotate or damage the emergence of trouble such as waiting, has seriously shortened the life of induced draft fan.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a dust keeper of waste gas draught fan, has extension draught fan life's advantage to prior art exists not enough.
The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme: the utility model provides a dust keeper of waste gas draught fan, includes the organism, the organism is provided with the air inlet end, air inlet lateral wall rotates and is connected with the installing frame, the joint has a filtration piece in the installing frame, it is used for will filtering a buckle subassembly of piece joint in the installing frame to filter fixedly connected with, buckle subassembly is connected in the installing frame, air inlet end lateral wall fixedly connected with is used for will filtering a closed closing mechanism in the air inlet end, closing mechanism demountable connection is in the installing frame.
Through adopting above-mentioned technical scheme, before the draught fan operation, can pass through buckle subassembly with filtering piece, make to filter a piece joint in the installing frame, later rotatable installing frame, make the installing frame rotate along the horizontal plane, and it holds to close in the air inlet, operate closing mechanism simultaneously, make closing mechanism joint in the installing frame, thereby make installing frame fixed connection in air inlet end, can open the draught fan afterwards, filter a piece and filter inspiratory waste gas, prevent that dust or impurity in the waste gas from inhaling in the impeller, cause the impeller to damage, thereby draught fan life has been prolonged.
The utility model discloses further set up to: the filter piece comprises a fixed frame connected to the mounting frame, and a filter screen is fixedly connected in the fixed frame.
Through adopting above-mentioned technical scheme, when passing through buckle subassembly with fixed frame and installing in the installing frame, through setting up the filter screen, can carry out the separation with the dust in the waste gas through the filter screen, make the dust separation on the filter screen surface, and then prevent that the dust from getting into the air inlet and holding in, avoid the impeller to receive the damage.
The utility model discloses further set up to: the buckle subassembly is including seting up the recess at fixed frame border outside, the recess is seted up towards the installing frame lateral wall, recess bottom fixedly connected with spring, the one end fixed connection of spring is in the recess bottom, the other end fixedly connected with joint piece of spring, the handle that fixed frame lateral wall was stretched out to joint piece lateral wall fixedly connected with, the dead slot that supplies the handle to slide is seted up to fixed frame, dead slot and recess intercommunication set up, the handle slides in the dead slot, the installing frame is offered the joint groove that is used for holding the joint piece towards the lateral wall of fixed frame, joint piece joint in joint groove, the installing frame both sides lateral wall slides respectively and is connected with the spacing subassembly that is used for spacing fixed frame, spacing subassembly butt in fixed frame.
Through adopting the above-mentioned technical scheme, when needs install fixed frame in the installing frame, with the one end butt of fixed frame in the inside border of installing frame, exert the effort towards the recess bottom to the joint piece simultaneously, make spring compression deformation, and then aim at the joint groove with the joint piece, remove the effort of exerting simultaneously, the spring resumes deformation, promote the joint piece towards joint groove direction, thereby make joint piece joint in the joint inslot, the spacing subassembly that slides simultaneously, make spacing subassembly butt in fixed frame, thereby make fixed frame spacing in the installing frame, and then the filter screen can filter waste gas.
The utility model discloses further set up to: the limiting assembly comprises limiting plates which are respectively connected to the side walls of two sides of the mounting frame in a sliding mode, limiting grooves are formed in the mounting frame and are formed in the direction towards the filter screen, limiting grooves are connected with limiting blocks in a sliding mode, the limiting blocks extend out of ends and are fixedly connected to the limiting plates, the limiting plates are abutted to the fixing frames, the mounting frame is connected with fixing assemblies which are fixed to the limiting plates in a sliding mode, and the fixing assemblies are abutted to the limiting plates.
Through adopting above-mentioned technical scheme, when with joint piece joint in the joint inslot, the while fixed frame is located the installing frame, the limiting plate that slides this moment, makes the limiting plate orientation be close to the filter screen direction and removes, makes the lateral wall butt of the fixed frame of limiting plate orientation in fixed frame lateral wall, the fixed subassembly that slides simultaneously, makes fixed subassembly slide along the direction of perpendicular to spacing groove, makes fixed subassembly butt in the limiting plate to the removal of limiting plate has been restricted, and then makes more stable the installing in the installing frame of fixed frame.
The utility model discloses further set up to: fixed subassembly is including sliding and connecting in the butt piece of installing frame, the groove of sliding has been seted up to the installing frame, the groove of sliding is seted up the direction and is seted up the direction with the spacing groove and is perpendicular, the groove of sliding slides and is connected with the sliding block, the sliding block stretches out end fixed connection in butt piece, the lateral wall butt that the butt piece is close to the filter screen deviates from the lateral wall on one side of the filter screen in the limiting plate.
Through adopting above-mentioned technical scheme, after the limiting plate removed towards the filter screen direction, make the lateral wall butt of the fixed frame of limiting plate orientation in fixed frame lateral wall, can remove the butt piece along the groove of sliding simultaneously, make the butt piece be close to the lateral wall butt of filter screen direction and deviate from the lateral wall of filter screen one side in the limiting plate to prevent the limiting plate and remove, make the limiting plate can last the butt in fixed frame, thereby make the joint that fixed frame can be stable in the installing frame.
The utility model discloses further set up to: the closing mechanism comprises a first connecting plate fixedly connected to the side wall of the air inlet end, a second connecting plate fixedly connected to the edge of the installing frame, one end of the second connecting plate abuts against one end of the first connecting plate, a supporting rod fixedly connected to the first connecting plate is rotatably connected with a locking assembly used for fixing the first connecting plate and the second connecting plate, and the locking assembly is connected to the second connecting plate in a clamped mode.
Through adopting above-mentioned technical scheme, when rotating the installing frame to when closing with the air inlet end, first connecting plate and second connecting plate butt rotate the locking subassembly this moment, because lever principle makes the locking subassembly joint in the second connecting plate to make first connecting plate fixed connection in the second connecting plate, and then make the installing frame tightly close in the air inlet end.
The utility model discloses further set up to: the locking subassembly is including rotating the locking lever of connecting in the bracing piece, first connecting plate deviates from the one end fixedly connected with extension spring of second connecting plate, the one end fixed connection of extension spring in first connecting plate, the other end fixed connection of extension spring in the locking lever, the locking lever deviates from the one end fixedly connected with locking block of extension spring, the locking block sets up towards the second connecting plate, the locking groove that supplies locking block joint is seted up to the second connecting plate.
Through adopting above-mentioned technical scheme, when closing the installing frame in the air inlet end, earlier exert the effort towards first connecting plate direction to the one end that the locking lever deviates from the locking piece, thereby make extension spring compression deformation, according to lever principle, and then make the locking piece move towards the direction that deviates from first connecting plate, when the one end butt of first connecting plate in the one end of second connecting plate, withdraw the effort of exerting on the locking lever, thereby the extension spring resumes deformation, make the locking piece move towards second connecting plate direction, the locking piece joint is in locking inslot, make first connecting plate fixed with the second connecting plate, and then make the installing frame close in the air inlet end.
The utility model discloses further set up to: the filter screen deviates from a plurality of bafflers of one side fixedly connected with of air inlet end, just the baffler is the downward sloping setting by the filter screen to the outside direction.
Through adopting above-mentioned technical scheme, through setting up the baffler, the large granule debris in the waste gas will pass through the baffler earlier before passing through the filter screen, and the baffler is the slope setting and can make debris beat at the baffler lateral wall to along baffler lateral wall landing, thereby avoid large granule debris to adsorb on the filter screen surface, influence the filter effect of filter screen.
To sum up, the utility model discloses a beneficial technological effect does:
before the draught fan moves, can pass through buckle subassembly with filtering the piece, make to filter a piece joint in the installing frame, later rotatable installing frame, make the installing frame rotate along the horizontal plane, and it is closed in the air inlet end, operate closing mechanism simultaneously, make closing mechanism joint in the installing frame, thereby make installing frame fixed connection in air inlet end, can open the draught fan afterwards, filter a piece and filter inspiratory waste gas, prevent that dust or impurity in the waste gas from inhaling in the impeller, cause the impeller to damage, thereby draught fan life has been prolonged.
Through setting up the baffler, the large granule debris in the waste gas will pass through the baffler earlier before passing through the filter screen, and the baffler is the slope setting and can make debris beat at the baffler lateral wall to along baffler lateral wall landing, thereby avoid large granule debris to adsorb at the filter screen surface, influence the filter effect of filter screen.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a sectional view of the mounting frame.
Fig. 3 is a schematic view of the entire structure of the mounting frame.
Fig. 4 is a partial structural view of the fixing frame.
In the figure, 1, a machine body; 2. an air inlet end; 3. installing a frame; 31. a filter member; 4. a buckle assembly; 5. a closing mechanism; 311. a fixing frame; 312. filtering with a screen; 41. a groove; 42. a spring; 43. a clamping block; 44. a clamping groove; 45. a handle; 46. an empty groove; 6. a limiting component; 61. a limiting plate; 62. a limiting groove; 63. a limiting block; 7. a fixing assembly; 71. a butting block; 72. a sliding groove; 73. a sliding block; 51. a first connecting plate; 52. a second connecting plate; 53. a support bar; 8. a locking assembly; 81. a locking lever; 82. a tension spring; 83. a locking block; 84. a locking groove; 9. a barrier plate.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, for the utility model discloses a dust keeper of waste gas draught fan, including organism 1, organism 1 is provided with air inlet end 2, 2 lateral walls of air inlet end articulate there is installing frame 3, installing frame 3 is back the font setting, installing frame 3 rotates along the horizontal direction, 3 interior joints of installing frame have a filtration piece 31, it has buckle assembly 4 who is used for filtering piece 31 joint in installing frame 3 to filter piece 31 welding, buckle assembly 4 connects in 3 inside walls of installing frame, 2 lateral wall welding of air inlet end have be used for filtering piece 31 closed in the closed mechanism 5 of air inlet end 2, closed mechanism 5 can dismantle and connect in installing frame 3.
Before the draught fan moves, can pass through buckle subassembly 4 with filtering piece 31, make and filter piece 31 joint in installing frame 3, later rotatable installing frame 3, make installing frame 3 rotate along the horizontal plane, and it is closed in air inlet end 2, operate closing mechanism 5 simultaneously, make 5 joints of closing mechanism in installing frame 3, thereby make 3 fixed connection in air inlet end 2 of installing frame, can open the draught fan afterwards, filter piece 31 filters inspiratory waste gas, prevent that dust or impurity in the waste gas from inhaling in the impeller, cause the impeller to damage, thereby draught fan life has been prolonged.
Referring to fig. 2, the filter 31 includes a fixing frame 311 coupled to the mounting frame 3, the fixing frame 311 is formed in a shape of a square, and a filter screen 312 is welded in the fixing frame 311. When installing fixed frame 311 in installing frame 3 through buckle subassembly 4, through setting up filter screen 312, can carry out the separation with the dust in the waste gas through filter screen 312, make the dust separation on filter screen 312 surface, and then prevent that the dust from getting into in the air inlet end 2, avoid the impeller to receive the damage.
Referring to fig. 2 and 3, the fastening assembly 4 includes a groove 41 formed on the outer edge of the fixing frame 311, the groove 41 is formed toward the side wall of the mounting frame 3, a spring 42 is welded at the bottom of the groove 41, one end of the spring 42 is welded at the bottom of the groove 41, a fastening block 43 is welded at the other end of the spring 42, the width of the fastening block 43 is equal to the width of the groove 41, a handle 45 extending out of the side wall of the fixing frame 311 is integrally connected to the side wall of the fastening block 43, the handle 45 is horizontally arranged, the fixing frame 311 is provided with a hollow groove 46 for sliding the handle 45, the opening direction of the hollow groove 46 is parallel to the opening direction of the groove 41, the hollow groove 46 is communicated with the groove 41, the handle 45 slides in the hollow groove 46, the side wall of the mounting frame 3 toward the fixing frame 311 is provided with a fastening groove 44 for accommodating the fastening block 43, the fastening block, the position-limiting component 6 abuts against the fixing frame 311.
When needs install fixed frame 311 in installing frame 3, earlier with the one end butt of fixed frame 311 in the interior border of installing frame 3, exert the effort towards recess 41 bottom to handle 45 simultaneously, make spring 42 compression deformation, and then aim at joint groove 44 with joint piece 43, remove the effort of applying simultaneously, spring 42 resumes deformation, promote joint piece 43 towards joint groove 44 direction, thereby make joint piece 43 joint in joint groove 44, the spacing subassembly 6 that slides simultaneously, make 6 butts of spacing subassembly in fixed frame 311, thereby make fixed frame 311 spacing in installing frame 3, and then filter screen 312 can filter waste gas.
Referring to fig. 3, limiting component 6 is including sliding respectively and connecting in the limiting plate 61 of 3 both sides lateral walls of installing frame, the limiting groove 62 that the cross-section is the T shape is seted up to installing frame 3, limiting groove 62 is seted up along the direction towards filter screen 312, limiting groove 62 slides and is connected with the limiting block 63 that the cross-section is the T shape, limiting block 63 stretches out the end and welds in the limiting plate 61 lateral wall, limiting plate 61 lateral wall butt is in fixed frame 311 lateral wall, installing frame 3 slides and is connected with fixed subassembly 7 of fixed limiting plate 61 position, fixed subassembly 7 butt in limiting plate 61.
When in the joint of joint piece 43 in joint groove 44, fixed frame 311 is located installing frame 3 simultaneously, limiting plate 61 slides this moment, make limiting plate 61 move towards being close to filter screen 312 direction, make the lateral wall butt of the fixed frame 311 of limiting plate 61 orientation in fixed frame 311 lateral wall, the fixed subassembly 7 that slides simultaneously, make fixed subassembly 7 slide along the direction of perpendicular to spacing groove 62, make fixed subassembly 7 butt in limiting plate 61, thereby the removal of limiting plate 61 has been restricted, and then make more stable the installing in installing frame 3 of fixed frame 311.
Referring to fig. 3 and 4, the fixing component 7 includes a sliding connection in the abutting block 71 of the mounting frame 3, the mounting frame 3 is provided with a sliding groove 72 with a T-shaped cross section, the sliding groove 72 is provided with a direction perpendicular to the direction of the limiting groove 62, the sliding groove 72 is connected with a sliding block 73 with a T-shaped cross section in a sliding manner, the extending end of the sliding block 73 is welded to the abutting block 71, and the abutting block 71 abuts against the side wall of the limiting plate 61 on the side away from the filter screen 312 near the filter screen 312.
After the limiting plate 61 removes towards filter screen 312 direction, make the lateral wall butt of the fixed frame 311 of limiting plate 61 orientation in fixed frame 311 lateral wall, simultaneously can remove butt piece 71 along sliding groove 72, make the butt piece 71 be close to the lateral wall butt of filter screen 312 direction and deviate from the lateral wall of filter screen 312 one side in limiting plate 61, thereby prevent the limiting plate 61 and remove, make limiting plate 61 can last butt in fixed frame 311, thereby make the joint that fixed frame 311 can be stable in installing frame 3, secondly when installing frame 3 is closed in air inlet end 2, air inlet end 2 is all arranged in to limiting plate 61 and butt plate, thereby can not interfere the closed air inlet end 2 of installing frame 3.
Referring to fig. 3, closing mechanism 5 is including welding in the first connecting plate 51 of 2 lateral walls in air inlet end, and first connecting plate 51 is vertical setting, and the welding of 3 borders of installing frame is vertical second connecting plate 52, and second connecting plate 52 aligns the setting with first connecting plate 51, and first connecting plate 51 welding has and is horizontally bracing piece 53, and bracing piece 53 top is rotated and is connected with and is used for locking installing frame 3 in the locking Assembly 8 of air inlet end 2, and locking Assembly 8 joint is in second connecting plate 52.
When rotating installing frame 3 to close with air inlet end 2, first connecting plate 51 and second connecting plate 52 butt rotate locking Assembly 8 this moment, because lever principle makes locking Assembly 8 joint in second connecting plate 52 to make first connecting plate 51 fixed connection in second connecting plate 52, and then make installing frame 3 closely close in air inlet end 2.
Locking subassembly 8 includes rotation connection in the locking lever 81 on bracing piece 53 top, locking lever 81 is the level setting, first connecting plate 51 has the extension spring 82 in the one end welding that deviates from second connecting plate 52, the one end of extension spring 82 welds in first connecting plate 51, the other end of extension spring 82 welds in locking lever 81, locking lever 81 has the locking piece 83 that is the horizontally in the one end welding that deviates from extension spring 82, and locking piece 83 sets up towards second connecting plate 52, second connecting plate 52 is seted up and is supplied locking piece 83 joint to lock groove 84, when preventing locking lever 81 from rotating, locking piece 83 causes the interference, the width that locks groove 84 is greater than the width of locking piece 83.
When closing installing frame 3 in air inlet end 2, exert the effort to the one end that locking lever 81 deviates from locking piece 83 earlier, thereby make extension spring 82 compression deformation, according to lever principle, and then make locking piece 83 rebound, when the one end butt of first connecting plate 51 in the one end of second connecting plate 52, withdraw the effort of exerting on locking lever 81, thereby make extension spring 82 resume deformation, make locking piece 83 move down, locking piece 83 joint is in locking groove 84, make first connecting plate 51 fixed with second connecting plate 52, and then make installing frame 3 close in air inlet end 2.
Referring to fig. 3, in order to prevent the filter screen 312 from being blocked by large particles and impurities in the exhaust gas, a plurality of baffle plates 9 are welded on one side of the filter screen 312 away from the air inlet end 2, the baffle plates 9 are arranged by the filter screen 312 in a downward inclination manner towards the outside direction, and the baffle plates 9 are arranged in a matrix. Through setting up baffler 9, the large granule debris in the waste gas will pass through baffler 9 earlier before passing through filter screen 312, and baffler 9 is the slope setting and can make debris beat at baffler 9 lateral wall to along baffler 9 lateral wall landing, thereby avoid large granule debris to adsorb on filter screen 312 surface, influence filter screen 312's filter effect.
The implementation principle of the embodiment is as follows: before the induced draft fan operates, one end of the first fixing frame 311 is abutted to the inner edge of the mounting frame 3, meanwhile, force towards the bottom direction of the groove 41 is applied to the handle 45, the clamping block 43 is aligned to the clamping groove 44, when external force is removed, the clamping block 43 is clamped in the clamping groove 44, the limiting plate 61 can slide at the moment, the side wall of the limiting plate 61 is abutted to the side wall of the fixing frame 311, the abutting block 71 slides towards the limiting groove 62, the side wall of the abutting block 71, which is close to the filter screen 312, is abutted to the side wall of the limiting plate 61, which is far away from the filter screen 312, so that the movement of the limiting plate 61 is limited, the filter screen 312 can be clamped in the mounting frame 3 more stably, meanwhile, the mounting frame 3 rotates towards the air inlet end 2 direction, the filter screen 312 is closed at the air inlet end 2, meanwhile, acting force is applied to one end, which is far away from the locking block 83, of the tension spring 82 is, when first connecting plate 51 butt in second connecting plate 52, withdraw the effort this moment, extension spring 82 resumes deformation, makes locking block 83 rotate towards the direction of second connecting plate 52 to make locking block 83 joint in locking groove 84, thereby make installing frame 3 can close in air inlet end 2, and then make filter screen 312 filter the waste gas of inhaling, prevent that the dust from getting into in the air inlet end 2, damage the impeller, thereby prolong the life of draught fan.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (8)
1. The utility model provides a dust keeper of waste gas draught fan, includes organism (1), organism (1) is provided with air inlet end (2), its characterized in that: air inlet end (2) lateral wall rotates and is connected with installing frame (3), the joint has a filtration piece (31) in installing frame (3), it is used for will filtering a buckle subassembly (4) of piece (31) joint in installing frame (3) to filter piece (31) fixedly connected with, buckle subassembly (4) are connected in installing frame (3), air inlet end (2) lateral wall fixedly connected with is used for filtering closed (5) in the closed mechanism (5) of air inlet end (2) of piece (31), closed mechanism (5) can be dismantled and connect in installing frame (3).
2. The dust-proof device of the exhaust gas induced draft fan of claim 1, wherein: the filter piece (31) comprises a fixing frame (311) connected to the mounting frame (3), and a filter screen (312) is fixedly connected to the inside of the fixing frame (311).
3. The dust-proof device of the exhaust gas induced draft fan of claim 2, wherein: the buckle component (4) comprises a groove (41) arranged at the outer edge of the fixing frame (311), the groove (41) is arranged towards the side wall of the mounting frame (3), a spring (42) is fixedly connected to the bottom of the groove (41), one end of the spring (42) is fixedly connected to the bottom of the groove (41), a clamping block (43) is fixedly connected to the other end of the spring (42), a handle (45) extending out of the side wall of the fixing frame (311) is fixedly connected to the side wall of the clamping block (43), an empty groove (46) for sliding the handle (45) is formed in the fixing frame (311), the empty groove (46) is communicated with the groove (41), the handle (45) is slid in the empty groove (46), a clamping groove (44) for accommodating the clamping block (43) is formed in the side wall of the fixing frame (311) of the mounting frame (3), and the clamping block (43) is clamped in the clamping groove (44), the mounting frame (3) both sides lateral wall slides respectively and is connected with spacing subassembly (6) that are used for spacing fixed frame (311), spacing subassembly (6) butt in fixed frame (311).
4. The dust-proof device of the exhaust gas induced draft fan of claim 3, wherein: spacing subassembly (6) including sliding respectively connect in limiting plate (61) of installing frame (3) both sides lateral wall, spacing groove (62) have been seted up in installing frame (3), spacing groove (62) are seted up along the direction towards filter screen (312), spacing groove (62) slide and are connected with stopper (63), stopper (63) stretch out end fixed connection in limiting plate (61), limiting plate (61) butt is in fixed frame (311), installing frame (3) slide and are connected with fixed subassembly (7) of fixed limiting plate (61) position, fixed subassembly (7) butt is in limiting plate (61).
5. The dust-proof device of the exhaust gas induced draft fan of claim 4, wherein: fixed subassembly (7) including sliding connect in butt piece (71) of installing frame (3), sliding groove (72) have been seted up in installing frame (3), sliding groove (72) are seted up the direction and are seted up the direction perpendicularly with spacing groove (62), sliding groove (72) are slided and are connected with sliding block (73), sliding block (73) stretch out end fixed connection in butt piece (71), the lateral wall butt that butt piece (71) are close to filter screen (312) deviates from the lateral wall of filter screen (312) one side in limiting plate (61).
6. The dust-proof device of the exhaust gas induced draft fan of claim 1, wherein: closing mechanism (5) are including first connecting plate (51) of fixed connection in air inlet end (2) lateral wall, installing frame (3) border fixedly connected with second connecting plate (52), second connecting plate (52) one end butt in the one end of first connecting plate (51), first connecting plate (51) fixedly connected with bracing piece (53), bracing piece (53) rotate be connected with be used for with first connecting plate (51) and second connecting plate (52) fixed locking subassembly (8), locking subassembly (8) joint in second connecting plate (52).
7. The dust-proof device of the exhaust gas induced draft fan of claim 6, wherein: locking subassembly (8) are including rotating locking lever (81) of connecting in bracing piece (53), first connecting plate (51) deviate from one end fixedly connected with extension spring (82) of second connecting plate (52), the one end fixed connection of extension spring (82) is in first connecting plate (51), the other end fixed connection of extension spring (82) is in locking lever (81), locking lever (81) deviate from one end fixedly connected with locking block (83) of extension spring (82), locking block (83) set up towards second connecting plate (52), second connecting plate (52) are seted up and are supplied locking block (83) locking groove (84) of joint.
8. The dust-proof device of the exhaust gas induced draft fan of claim 5, wherein: one side fixedly connected with a plurality of bafflers (9) that filter screen (312) deviate from air inlet end (2), just baffler (9) are the downward sloping setting by filter screen (312) outside direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020437844.3U CN211924591U (en) | 2020-03-30 | 2020-03-30 | Dust keeper of waste gas draught fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020437844.3U CN211924591U (en) | 2020-03-30 | 2020-03-30 | Dust keeper of waste gas draught fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211924591U true CN211924591U (en) | 2020-11-13 |
Family
ID=73348294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020437844.3U Expired - Fee Related CN211924591U (en) | 2020-03-30 | 2020-03-30 | Dust keeper of waste gas draught fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211924591U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113250987A (en) * | 2021-05-31 | 2021-08-13 | 江苏恒康机电有限公司 | Factory fan with filtering and dustproof functions |
-
2020
- 2020-03-30 CN CN202020437844.3U patent/CN211924591U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113250987A (en) * | 2021-05-31 | 2021-08-13 | 江苏恒康机电有限公司 | Factory fan with filtering and dustproof functions |
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| GR01 | Patent grant | ||
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Granted publication date: 20201113 |