CN111749917A - Fan opening and closing device and ventilation device - Google Patents
Fan opening and closing device and ventilation device Download PDFInfo
- Publication number
- CN111749917A CN111749917A CN202010617283.XA CN202010617283A CN111749917A CN 111749917 A CN111749917 A CN 111749917A CN 202010617283 A CN202010617283 A CN 202010617283A CN 111749917 A CN111749917 A CN 111749917A
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- Prior art keywords
- rolling
- fan
- wall
- side wall
- door
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Classifications
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- 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
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
- F04D25/12—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation the unit being adapted for mounting in apertures
- F04D25/14—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation the unit being adapted for mounting in apertures and having shutters, e.g. automatically closed when not in use
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/02—Shutters, movable grilles, or other safety closing devices, e.g. against burglary
- E06B9/08—Roll-type closures
- E06B9/11—Roller shutters
- E06B9/13—Roller shutters with closing members of one piece, e.g. of corrugated sheet metal
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
- E06B9/58—Guiding devices
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
- E06B9/68—Operating devices or mechanisms, e.g. with electric drive
- E06B9/72—Operating devices or mechanisms, e.g. with electric drive comprising an electric motor positioned inside the roller
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
- E06B9/58—Guiding devices
- E06B2009/587—Mounting of guiding devices to supporting structure
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
- E06B9/58—Guiding devices
- E06B2009/588—Sealings for guides
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
Abstract
The invention discloses a fan opening and closing device and a ventilation device, wherein the fan opening and closing device is arranged at an air inlet of a fan, the fan opening and closing device comprises a roller shutter outer frame, a roller shutter door and a driving mechanism, the roller shutter outer frame comprises an inner wall surface which is arranged in an arc surface, a groove is formed in the inner wall surface, an opening is formed in one side of the roller shutter outer frame along the length direction, the roller shutter door is embedded into the groove, the roller shutter door is composed of a plurality of roller shutter sheets, an upper hook and a second step are arranged on the upper portion of each roller shutter sheet, a lower hook and a first step are arranged on the lower portion of each roller shutter sheet, and the distance between each second step. The invention has the following beneficial effects: when the fan works, the fan opening and closing device can improve the air inlet amount, reduce the wind resistance, improve the air inlet efficiency and improve the energy efficiency ratio of the fan; when the fan is out of work, the air tightness of the closed fan opening and closing device is good.
Description
Technical Field
The invention relates to the technical field of ventilation, in particular to a fan opening and closing device and a ventilation device.
Background
In the ventilation trade, the fan is essential subassembly, and the fan has played the effect of accelerating the fluid circulation, in current ventilation place especially livestock-raising place, is equipped with the fan and opens and shuts the device in vent department to there is certain requirement to ventilate: 1. the area of the air inlet is as large as possible within a reasonable range when the fan operates, and the resistance of the air inlet is as small as possible; 2. when the fan does not work, the air port has good air tightness and good light leakage prevention effect, and air flow between the indoor space and the outdoor space is isolated.
In the prior art, the opening and closing device generally adopts a shutter structure or a double-opening valve structure, but the two structures have the following defects: 1. the opening and closing devices with the two structures are not provided with a current collector structure, so that the air inlet efficiency is poor; 2. the actual air inlet area is smaller than the air inlet area under the influence of the installation of the shutter structure and the double-open valve structure; 3. the wind resistance is large; 4. the energy efficiency ratio of the fan is low.
Disclosure of Invention
In order to solve the above technical problems, an object of the present invention is to provide a fan opening and closing device, which includes a rolling shutter outer frame, a rolling shutter door, and a driving mechanism, and the fan opening and closing device has the advantages of increasing an intake air amount, reducing a wind resistance, increasing an air intake efficiency, increasing a fan energy efficiency ratio, and having good sealing performance when closed.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a fan opening and closing device is arranged at an air inlet of a fan;
the fan opening and closing device comprises a roller shutter outer frame, a roller shutter door and a driving mechanism, wherein an opening is formed in one side of the roller shutter outer frame in the length direction, an air inlet end and an air outlet end are respectively formed in two ends of the roller shutter outer frame in the axis direction of the fan, the roller shutter outer frame comprises a first end face, an inner wall face and a second end face, the first end face is located at the air inlet end, the second end face is located at the air outlet end, the inner wall face is connected with the first end face and the second end face respectively, the inner wall face is arranged in an arc surface mode, a tangent plane of a joint of the inner wall face and the first end face is superposed with the first end face, a tangent plane of a joint of the inner wall face and the second end face is perpendicular to the second end;
the roller shutter door is embedded into the groove and consists of a plurality of roller shutter sheets, each roller shutter sheet comprises a roller shutter sheet main body, an upper hook which is inwards concave is arranged on the right side of the upper part of each roller shutter sheet main body, a lower hook which is outwards convex is arranged on the lower part of each roller shutter sheet main body, two adjacent roller shutter sheets are buckled and connected with the lower hook through the upper hook, the lower hook comprises a vertical section connected with the roller shutter sheet main body, an opening of the lower hook is arranged on the right side of the vertical section, a concave first step is arranged on the left side of the vertical section on the lower part of each roller shutter sheet main body, a convex second step is arranged on the left side of the upper part of each roller shutter sheet main body, the first step is matched with the second step, and the distance between the second step and the upper hook is equal to the thickness of the vertical section;
the driving mechanism is arranged at an opening of the outer frame of the roller shutter and connected with the roller shutter door.
Preferably, the groove comprises a first side wall, a bottom wall and a second side wall, the distance between the first side wall and the second side wall is larger than the thickness of the roller shutter door, and the ratio of the distance between the first side wall and the second side wall to the thickness of the roller shutter door ranges from 1.1:1 to 1.3:1, through the arrangement, after the roller shutter door is embedded into the groove, because the gap between the first side wall and the second side wall is larger than the thickness of the roller shutter door, a gap exists between the roller shutter door and the first side wall and between the roller shutter door and the second side wall, the roller shutter door is prevented from having interference friction with the first side wall or the second side wall during uncoiling or coiling, and the roller shutter door can move more smoothly; the ratio of the distance between the first side wall and the second side wall to the thickness of the roller shutter door is 1.1: 1-1.3: 1, and the roller shutter door is guaranteed to have good tightness after being uncoiled on the premise of avoiding the collision and friction between the roller shutter door and the first side wall or the second side wall; if the ratio of the distance between the first side wall and the second side wall to the thickness of the roller shutter door is less than 1.1: although the tightness of the rolling door after rolling can be better ensured, the gap between the rolling door and the first side wall and the gap between the rolling door and the second side wall are too small, the rolling door has a vibration phenomenon during uncoiling or rolling, and the rolling door may collide and rub with the first side wall or the second side wall; if the ratio of the distance between the first side wall and the second side wall to the thickness of the roller shutter door is more than 1.3: although the contact friction between the rolling door and the first side wall or the second side wall can be well avoided, the gap between the rolling door and the first side wall and the gap between the rolling door and the second side wall are too large, and the tightness of the rolling door after rolling is poor.
Preferably, the first side wall is close to the air inlet end, the second side wall is close to the air outlet end, a sealing wool top is arranged on the second side wall, under the action of fluid pressure, the roller shutter door can be pressed to the second side wall by the fluid pressure normally, the sealing wool top is arranged on the second side wall, the sealing wool top is abutted against the roller shutter door to avoid the friction condition between the roller shutter door and the side wall, the resistance of the roller shutter door during action can be reduced, the noise is reduced, and the sealing performance of the roller shutter door after being uncoiled is improved.
Preferably, the outer rolling shutter frame is composed of a section bar, a plurality of hollow first cavities are arranged in the section bar, the outer rolling shutter frame further comprises an outer wall surface, two ends of the section bar and the corresponding outer wall surface form an angle of 45 degrees, and through the arrangement, the first cavities are arranged, so that the overall structural strength of the outer rolling shutter frame can be ensured, the overall weight of the outer rolling shutter frame can be reduced, the material consumption is reduced, and the production cost is reduced; and the two ends of the sectional materials and the corresponding outer wall surfaces form an angle of 45 degrees, so that the sectional materials can be spliced into the outer rolling screen frame conveniently.
As preferred, the inner wall of couple is the setting of U type down, the tip of going up the couple is equipped with the cylindroid, the cylindroid with the inner wall looks adaptation of couple down, through setting up like this, work as go up the couple with when couple lock is connected down, through go up the couple the cylindroid with the inner wall cooperation of couple down, down the couple can round the axis of cylindroid is relative go up the couple and rotate, be convenient for it is relative to couple down go up the couple and rotate.
As preferred, be equipped with the mousing-hook down on the couple, the second step includes straight section and bending segment, the one end of straight section with roll up a curtain piece main part and connect, the other end of straight section with the one end of bending segment is connected, the other end of bending segment can with the mousing-hook is contradicted, through setting up like this, works as the couple is relative down go up the couple round when the axis of elliptical column is rotatory 90, bending segment with the mousing-hook is contradicted, thereby has restricted the couple is relative down go up the couple further rotates, when the mousing-hook played limiting displacement, also avoided go up couple turned angle too big and the mousing-hook.
Preferably, be equipped with hollow second cavity in rolling up the curtain piece main part, it includes left side wall and right side wall to roll up the curtain piece main part, be equipped with the first strengthening rib of multi-disc in the second cavity, the multi-disc first strengthening rib is followed the parallel interval in direction of height of rolling up the curtain piece main part sets up, just the both ends of first strengthening rib respectively with the left side wall reaches right side wall connects, through setting up like this, is equipped with the second cavity physical stamina improves the noise reduction effect and the heat preservation effect of giving sound insulation of rolling up door, and is equipped with first strengthening rib can improve the structural strength and the anti-wind ability of rolling up door.
Preferably, the driving mechanism comprises a reel, a motor and a bracket, the bracket comprises a bracket bottom plate and a bracket side plate, the two ends of the bracket bottom plate along the length direction are respectively provided with the bracket side plate, the bracket side plates are connected with the rolling screen outer frame, one end of the motor is arranged in one end of the scroll, the other end of the scroll is connected with the bracket side plate positioned at one end of the bracket bottom plate, the other end of the motor is connected with the bracket side plate positioned at the other end of the bracket bottom plate, the rolling door is connected with the scroll, by the arrangement, the support is connected with the rolling screen outer frame, the structural strength of the rolling screen outer frame is improved, the motor drives the rolling shaft to rotate around the axis of the rolling shaft, thereby drive the rolling slats door carry out rolling or open a book the action, thereby control the opening and closing of fan opening and shutting device.
Preferably, the support side plate is provided with a guide block at an opening of the outer frame of the roller shutter, and the guide block guides the roller shutter door at the opening, so that the roller shutter door can be more flexibly and smoothly uncoiled or coiled.
The invention also provides a ventilation device, which comprises a fan and the fan opening and closing device, wherein a ventilation opening is formed in a building wall, the fan is arranged on the outer side of the building wall, an air inlet of the fan is in butt joint with the ventilation opening, the fan opening and closing device is arranged on the inner side of the building wall, and an air outlet end of the fan opening and closing device is in butt joint with the ventilation opening.
Compared with the prior art, the invention has the beneficial technical effects that:
1. when the fan operates, the driving mechanism drives the rolling action of the rolling door, after the rolling door is rolled, namely the actual air inlet area when the fan opening and closing device is opened is relatively large, the inner wall surface of the rolling curtain outer frame is in an arc surface arrangement, and the rolling curtain outer frame has a flow concentration effect and can improve the air inlet amount.
2. When the fan operates, the inner wall surface of the outer rolling curtain frame is arranged in a cambered surface mode, the inner wall surface has a guiding effect on fluid and reduces wind resistance, when the fluid flows from the air inlet end to the air outlet end, the inner wall surface forms a tapered flow channel, the fluid is gradually accelerated, a uniform speed field and a uniform pressure field are established in front of an air inlet of the fan, turbulent airflow is reduced, flow loss is reduced, and therefore air inlet efficiency is improved and the energy efficiency ratio of the fan is improved.
3. When the fan is out of work, actuating mechanism drive the action is opened a book to the rolling slats door, the rolling slats door is opened a book the back, because adjacent two pass through between the book curtain piece go up the couple with couple lock connection down, and adjacent two pass through between the book curtain piece first step with the unsmooth cooperation of second step, the vertical section embedding the second step with go up between the couple, make adjacent two the gap between the book curtain piece is little, just in the rolling slats door embedding in the recess, thereby guarantee the rolling slats door is opened a book the back, promptly the leakproofness when the fan device that opens and shuts is closed is good.
Drawings
FIG. 1 is an isometric schematic view of an embodiment of the invention;
FIG. 2 is an exploded schematic view of an embodiment of the present invention;
FIG. 3 is an enlarged partial view of portion A of FIG. 2 illustrating an embodiment of the present invention;
FIG. 4 is an enlarged partial view of portion B of FIG. 2 illustrating an embodiment of the present invention;
FIG. 5 is a schematic cross-sectional view of a profile of an embodiment of the present invention;
FIG. 6 is a schematic side view of a portion of a roller door according to an embodiment of the present invention;
fig. 7 is a schematic cross-sectional view of a rolling shutter sheet according to an embodiment of the present invention.
Wherein, the technical characteristics that each reference numeral refers to are as follows:
10. a roller shutter door; 11. a rolling shutter sheet; 11.1, rolling shutter sheet main body; 11.1.1, left side wall; 11.1.2, right side wall; 11.1.3, a bottom wall; 11.2, a lower hook; 11.2.1, vertical section; 11.2.2, a connecting segment; 11.2.3, an open section; 11.3, hanging a hook; 11.3.1, elliptic cylinder; 11.3.2, a transverse segment; 11.4, a first step; 11.5, a second step; 11.5.1, a bending section; 11.5.2, a straight section; 11.6, unhooking prevention; 11.6.1, a limiting section; 11.6.2, an outer section; 11.7, a first reinforcing rib; 11.8, second reinforcing ribs; 11.9, positioning grooves; 20. a roller shutter outer frame; 21. a section bar; 21.1, a first end face; 21.2, a second end face; 21.3, inner wall surface; 21.4, outer wall surface; 21.5, grooves; 21.6, a first cavity; 22. sealing the wool tops; 30. a drive mechanism; 31. a reel; 32. a motor; 32.1, a stator; 32.2, a rotor; 32.3, a boss; 33. tail insertion; 34. a bracket side plate; 35. a bracket base plate; 36. a motor fixing plate; 37. an upper guide block; 38. a lower guide block; 40. a fan; 50. building a wall body; 60. angle iron.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments, but the scope of the present invention is not limited to the following embodiments.
Referring to fig. 1 to 7, the present embodiment discloses a fan opening and closing device, which is disposed at an air inlet of a fan 40;
referring to fig. 1, 2 and 5, the fan opening and closing device includes a rolling shutter frame 20, a rolling shutter door 10 and a driving mechanism 30, wherein the rolling shutter frame 20 is in the shape of a roller shutter frame
The rolling curtain outer frame 20 is composed of three sectional materials 21, one side of the rolling curtain outer frame 20 along the length direction is provided with an opening, two ends of the rolling curtain outer frame 20 along the axial direction of the fan 40 are respectively an air inlet end and an air outlet end, the rolling curtain outer frame 20 comprises a first end surface 21.1, an inner wall surface 21.3, a second end surface 21.2 and an outer wall surface 21.4, the first end surface 21.1 and the second end surface 21.2 are oppositely arranged, the first end face 21.1 is located at the air inlet end, the second end face 21.2 is located at the air outlet end, two ends of the inner wall face 21.3 in the axial direction of the fan 40 are respectively connected with the first end face 21.1 and the second end face 21.2, two ends of the outer wall face 21.4 in the axial direction of the fan 40 are respectively connected with the first end face 21.1 and the second end face 21.2, the inner wall face 21.3 is a face located in the roller shutter outer frame 20, the inner wall face 21.3 is opposite to the outer wall face 21.4, two ends of the three profiles 21 and the corresponding outer wall face 21.4 are arranged at an angle of 45 degrees, namely two ends of the profiles 21.The roller shutter frame is arranged at an angle of 45 degrees with an outer wall surface 21.4 of the roller shutter frame, the sectional materials 21 are conveniently spliced to form the roller shutter frame 20, two adjacent sectional materials 21 are spliced to form an included angle of 90 degrees, the two adjacent sectional materials 21 are fixedly connected through angle iron 60, the angle iron 60 is fixedly connected with the sectional materials 21 through screws, the structural strength of the roller shutter frame 20 is guaranteed, the roller shutter frame 20 can be fixedly connected with a building wall 50 through the angle iron 60, an inner wall surface 21.3 is arranged in an arc surface mode, a tangent plane at the joint of the inner wall surface 21.3 and a first end surface 21.1 is coincided with the first end surface 21.1, a tangent plane at the joint of the inner wall surface 21.3 and a second end surface 21.2 is perpendicular to the second end surface 21.2, and a groove 21.5;
referring to fig. 1-2 and 6-7, a rolling shutter door 10 is embedded in a groove 21.5, the rolling shutter door 10 is composed of a plurality of rolling shutter pieces 11, each rolling shutter piece 11 includes a rolling shutter piece main body 11.1, an upper hook 11.3 which is recessed inwards is arranged on the right side of the upper portion of each rolling shutter piece main body 11.1, a lower hook 11.2 which protrudes outwards is arranged on the lower portion of each rolling shutter piece main body 11.1, the upper hook 11.3 is matched with the lower hook 11.2, two adjacent rolling shutter pieces 11 are buckled and connected with the lower hook 11.2 through the upper hook 11.3, the lower hook 11.2 includes a vertical section 11.2.1 connected with the rolling shutter piece main body 11.1, an opening of the lower hook 11.2 is arranged on the right side of the vertical section 11.2.1, a first step 11.4 which is recessed is arranged on the left side of the vertical section 11.2.1 on the lower portion of each rolling shutter piece main body 11.1, a second step 11.5 is arranged on the left side of the upper portion of each rolling shutter piece main body 11.5, and the second step is equal to the thickness of the rolling shutter piece main body 11.1, a hook groove for installing the upper hook 11.3 is formed between the upper hook 11.3 and the second step 11.5 and the rolling shutter sheet main body 11.11;
the driving mechanism 30 is arranged at the opening of the outer rolling shutter frame 20, and the driving mechanism 30 is connected with the rolling shutter door 10;
from the direction of fig. 2, preferably, the end of the rolling shutter frame 20 at the opening is provided with a connecting rod, the two ends of the connecting rod are respectively fixedly connected with the end of the rolling shutter frame 20 at the opening through angle irons 60, and the connecting rod is located below the rolling shutter door 10, so that the overall structural strength of the rolling shutter frame 20 is improved without hindering the rolling or uncoiling of the rolling shutter door 10.
When the fan 40 operates, the driving mechanism 30 drives the rolling door 10 to roll, after the rolling door 10 is rolled, namely the actual air inlet area is relatively large when the fan opening and closing device is opened, the inner wall surface 21.3 of the rolling curtain outer frame 20 is arranged in an arc surface, and the rolling curtain outer frame 20 has a flow collecting effect and can improve the air inlet amount; the inner wall surface 21.3 has a guiding effect on fluid, so that wind resistance is reduced, when the fluid flows from the air inlet end to the air outlet end, the inner wall surface 21.3 forms a tapered flow channel, so that the fluid is gradually accelerated, a uniform velocity field and a uniform pressure field are established in front of an air inlet of the fan 40, turbulent airflow is reduced, flow loss is reduced, and therefore air inlet efficiency is improved and the energy efficiency ratio of the fan 40 is improved;
when the fan 40 is out of work, the driving mechanism 30 drives the rolling shutter door 10 to roll, after the rolling shutter door 10 is rolled, because the two adjacent rolling shutter pieces 11 are connected with the lower hook 11.2 through the upper hook 11.3 in a buckling manner, and the two adjacent rolling shutter pieces 11 are matched with the second step 11.5 through the first step 11.4 in a concave-convex manner, the gap between the two adjacent rolling shutter pieces 11 is small, the rolling shutter door 10 is embedded into the groove 21.5, the vertical section 11.2.1 is embedded into the second step 11.5 and the upper hook 11.3, so that the rolling shutter door 10 is guaranteed to be rolled, and the sealing performance when the fan opening and closing device is closed is good. Referring to fig. 5, further specifically, the radius of the inner wall surface 21.3 is between 80 mm and 90mm, so that the outer rolling shutter frame 20 has a reasonable structure, turbulent airflow is further reduced, flow loss is reduced, and the efficiency of the fan 40 is improved; the groove 21.5 comprises a first side wall, a bottom wall 11.1.3 and a second side wall, the distance between the first side wall and the second side wall is larger than the thickness of the roller shutter door 10, when the roller shutter door 10 is installed in the groove 21.5, because the distance between the first side wall and the second side wall is larger than the thickness of the roller shutter door 10, a gap exists between the roller shutter door 10 and the first side wall and the second side wall, the roller shutter door 10 is prevented from colliding and rubbing with the first side wall or the second side wall when being opened or wound, and the roller shutter door 10 can be smoother when acting.
Referring to fig. 5, in particular, the ratio of the spacing between the first and second sidewalls to the thickness of the tambour door 10 ranges from 1.1: 1-1.3: 1, on the premise of avoiding the collision and friction between the rolling door 10 and the first side wall or the second side wall, ensuring good tightness of the rolling door 10 after rolling; if the ratio of the distance between the first side wall and the second side wall to the thickness of the roller door 10 is less than 1.1: although the tightness of the rolling door 10 after rolling can be better ensured, the rolling door 10 is vibrated when being uncoiled or rolled due to the gap between the rolling door 10 and the first side wall and the gap between the rolling door 10 and the second side wall, and the rolling door 10 may collide and rub against the first side wall or the second side wall; if the ratio of the distance between the first side wall and the second side wall to the thickness of the roller door 10 is greater than 1.3: although the contact friction between the rolling door 10 and the first side wall or the second side wall can be well avoided, the gap between the rolling door 10 and the first side wall or the second side wall is too large, and the sealing performance of the rolling door 10 after rolling is poor.
In an embodiment, not shown in the drawings, the sealing wool tops 22 are disposed on at least one of the first side wall or the second side wall, the sealing wool tops 22 are disposed on the first side wall and the second side wall in a sticking manner, the sealing wool tops 22 can abut against the rolling door 10 installed in the groove 21.5, the sealing wool tops 22 can well prevent the rolling door 10 from abutting against the first side wall and the second side wall, and can reduce resistance of the rolling door 10 during operation, reduce noise, and improve tightness of the rolling door 10 after rolling.
Referring to fig. 5, in this embodiment, the first sidewall is close to the air inlet end, the second sidewall is close to the air outlet end, the second sidewall is provided with two first protruding bars arranged in parallel at intervals, a sealing wool top 22 is arranged between the two first protruding bars, the sealing wool top 22 is arranged on the second sidewall through a pasting method, under the action of fluid pressure, the rolling door 10 is usually pressed to the second sidewall, the sealing wool top 22 is arranged on the second sidewall, when the rolling door 10 is pressed to the second sidewall, the sealing wool top 22 is abutted against the rolling door 10, the abutting friction between the rolling door 10 and the second sidewall is avoided, the resistance when the rolling door 10 acts is reduced, the noise is reduced, and the production cost is reduced on the premise of improving the tightness after the rolling door 10 is unrolled.
Referring to fig. 5, a plurality of hollow first cavities 21.6 are arranged in the section bar 21, so that not only the overall strength of the outer rolling shutter frame 20 can be ensured, but also the overall weight of the outer rolling shutter frame 20 can be reduced, the material consumption is reduced, and the production cost is reduced.
Referring to fig. 7, the inner wall of the lower hook 11.2 is U-shaped, the end of the upper hook 11.3 is provided with an elliptic cylinder 11.3.1, the elliptic cylinder 11.3.1 is matched with the inner wall of the lower hook 11.2, specifically, the lower hook 11.2 further comprises a connecting section 11.2.2 and an opening section 11.2.3, one end of the vertical section 11.2.1 is connected with the rolling shutter sheet main body 11.1, the other end of the vertical section 11.2.1 is connected with one end of a connecting section 11.2.2, the other end of the connecting section 11.2.2 is connected with one end of the opening section 11.2.3, a gap exists between the other end of the opening section 11.2.3 and the rolling shutter sheet main body 11.1 to form an opening, the vertical section 11.2.1 is vertically arranged with the connecting section 11.2.2 and the opening section 11.2.3 and the connecting section 11.2.2, the vertical section 11.2.1, the connecting section 11.2.2 and the opening section 11.2.3 form the lower hook 11.2, the vertical section 11.2.1, the connecting section 11.2.2 and the inner side of the opening section 11.2.3 form the inner wall of the lower hook 11.2, the upper hook 11.3 comprises a transverse column 11.3.1 and one end of the rolling shutter sheet main body 58, the other end of transverse section 11.3.2 is connected with the top of elliptical column 11.3.1, transverse section 11.3.2 and elliptical column 11.3.1 form lower couple 11.2, when last couple 11.3 is connected with lower couple 11.2 lock, elliptical column 11.3.1 contradicts and contradicts with the inner wall of lower couple 11.2, through the cooperation of elliptical column 11.3.1 of last couple 11.3 with the inner wall of lower couple 11.2, lower couple 11.2 can rotate around the relative couple 11.3 that goes up of elliptical column 11.3.1's axis, make lower couple 11.2 can smoothly rotate relative couple 11.3 that goes up, be convenient for lower couple 11.2 to rotate relative couple 11.3 that goes up, and when elliptical column 11.3.1 contradicts with the inner wall of lower couple 11.2, the other end and the transverse section 11.3.2 of opening section 11.2.3 contradict, improve rolling slats door 10's tensile strength.
Referring to fig. 7, an anti-unhooking hook 11.6 is arranged on the lower hook 11.2, the second step 11.5 includes a straight section 11.5.2 and a bent section 11.5.1, one end of a straight section 11.5.2 is connected with the rolling shutter sheet main body 11.1, the other end of the straight section 11.5.2 is connected with one end of the bent section 11.5.1, the straight section 11.5.2 is vertically connected with the bent section 11.5.1, and the other end of the bent section 11.5.1 can abut against the anti-unhooking hook 11.6, when the lower hook 11.2 rotates 90 degrees around the axis of the elliptic column 11.3.1 relative to the upper hook 11.3, the bent section 11.5.1 abuts against the anti-unhooking hook 11.6, so that the lower hook 11.2 is limited from further rotating relative to the upper hook 11.3, the anti-unhooking hook 11.6 plays a limiting role, and the phenomenon that the upper hook 11.3 rotates too much to cause unhooking is avoided; the distance between the second step 11.5 and the upper hook 11.3 specifically refers to the minimum distance between the bent section 11.5.1 and the elliptic cylinder 11.3.1, because the surface of the elliptic cylinder 11.3.1 is an arc surface, the distance between the bent section 11.5.1 and the elliptic cylinder 11.3.1 has different values along the perpendicular direction of the bent section 11.5.1, wherein the minimum distance between the bent section 11.5.1 and the elliptic cylinder 11.3.1 is equal to the thickness of the vertical section 11.2.1, when the upper hook 11.3 is buckled and connected with the lower hook 11.2, two sides of the vertical section 11.2.1 can respectively abut against the bent section 11.5.1 and the elliptic section, and the rolling door 10 is ensured to have good sealing performance; and the lower hook 11.2 is made to have directionality when rotating around the axis of the elliptic cylinder 11.3.1 relative to the upper hook 11.3, and the lower hook 11.2 can only rotate clockwise relative to the upper hook 11.3 when viewed from the direction of fig. 6.
Referring to fig. 7, the unhooking prevention hook 11.6 includes an outer section 11.6.2 and a limiting section 11.6.1 abutting against the bending section 11.5.1, one end of the limiting section 11.6.1 is connected with the lower hook 11.2, the other end of the limiting section 11.6.1 is connected with one end of the outer section 11.6.2, specifically, one end of the limiting section 11.6.1 is connected with the middle of the connecting section 11.2.2, the limiting section 11.6.1 and the outer section 11.6.2 form the unhooking prevention hook 11.6, an included angle between the limiting section 11.6.1 and the outer section 11.6.2 is greater than 90 °, and when the lower hook 11.2 rotates relative to the upper hook 11.3, the outer section 11.6.2 is prevented from colliding and interfering with the bending section 11.5.1.
Referring to fig. 7, the right side of the other end of bending section 11.5.1 and the left side of the outer wall of lower hook 11.2 are both provided with a rounded corner structure, when lower hook 11.2 rotates relative to upper hook 11.3, bending section 11.5.1 and rounded corner structure of lower hook 11.2 cooperate with each other to play a transition role, so that the flexibility of lower hook 11.2 rotating relative to upper hook 11.3 is improved, and further lower hook 11.2 rotating relative to upper hook 11.3 is convenient.
Referring to fig. 7, a hollow second cavity is arranged in the rolling shutter main body 11.1, so that the sound and noise reduction and heat preservation effects of the rolling shutter door 10 are improved.
Referring to fig. 7, the rolling shutter main body 11.1 includes a left side wall 11.1.1, a right side wall 11.1.2, and a bottom wall 11.1.3, one end of the bottom wall 11.1.3 is vertically connected to the bottom end of the left side wall 11.1.1, the other end of the bottom wall 11.1.3 is vertically connected to the bottom end of the right side wall 11.1.2, the middle of one end bottom wall 11.1.3 of the vertical section 11.2.1 is vertically connected, a concave first step 11.4 is formed between the bottom wall 11.1.3 and the vertical section 11.2.1, one end of the straight section 11.5.2 is vertically connected with the top end of the left side wall 11.1.1, a convex second step 11.5 is formed between the left side wall 11.1.1, the straight section 11.5.2 and the bending section 11.5.1, one end of the transverse section 11.3.2 is vertically connected with the right side wall 11.1.2, a plurality of first reinforcing ribs 11.7 are arranged in the cavity, the plurality of first reinforcing ribs 11.7 are arranged in parallel at intervals along the height direction of the roller shutter sheet main body 11.1, and both ends of first strengthening rib 11.7 are connected with left lateral wall 11.1.1 and right lateral wall 11.1.2 respectively, and first strengthening rib 11.7 can improve rolling slats door 10's structural strength and wind resistance ability.
Referring to fig. 7, a plurality of second reinforcing ribs 11.8 are arranged at intervals in parallel along the height direction of the rolling shutter main body 11.1 on the inner sides of the left side wall 11.1.1 and the right side wall 11.1.2, so that the structural strength and the wind resistance of the rolling shutter door 10 are further improved.
Referring to fig. 7, the outside of left side wall 11.1.1 and right side wall 11.1.2 is equipped with a plurality of constant head tanks 11.9, and constant head tank 11.9 and first strengthening rib 11.7 one-to-one set up, it needs to be connected with spool 31 through self-tapping screw to roll up curtain piece 11, because constant head tank 11.9 and first strengthening rib 11.7 one-to-one set up, the position of first strengthening rib 11.7 is marked to constant head tank 11.9, when avoiding adopting automatic screw to be connected rolling up curtain piece 11 with spool 31, can avoid the position of first strengthening rib 11.7, also be convenient for twist self-tapping screw.
Referring to fig. 1-4, the driving mechanism 30 includes a winding shaft 31, a motor 32 and a bracket, the bracket includes a bracket bottom plate 35 and a bracket side plate 34, the bracket bottom plate 35 has bracket side plates 34 at both ends along the length direction, the bracket side plate 34 includes a panel and a flange outward around, the flange of the bracket side plate 34 includes an upper flange, a lower flange, a left flange and a right flange, the lower flange of the bracket side plate 34 is fixedly connected with the bracket bottom plate 35 through screws, so as to improve the structural strength of the bracket, the bracket side plates 34 at both ends are respectively fixedly connected with the end of the rolling curtain outer frame 20 at the opening through angle iron 60 and screws, so that the rolling curtain outer frame 20 and the bracket form a whole, so as to improve the structural strength of the rolling curtain outer frame 20, one end of the motor 32 is disposed in one end of the winding shaft 31, the other end of the winding shaft 31 is connected with the bracket side plate 34 at one end of the bracket bottom plate 35, specifically, the motor 32 is a tubular motor, the tubular motor is a prior art, and details are not repeated herein, the motor 32 includes a cylindrical stator 32.1 and rotors 32.2 disposed at two ends of the stator 32.1, the rotors 32.2 are octagonal, a through hole adapted to the rotors 32.2 is disposed in the reel 31, one end of the motor 32 is disposed in one end of the reel 31, the rotors 32.2 are fixedly connected to the reel 31 through tapping screws, the other end of the reel 31 is sleeved with a tail plug 33, the tail plug 33 includes a rotor and a fixed shaft, the rotor is sleeved outside the fixed shaft, the rotor is disposed in the reel 31, the rotor is fixedly connected to the reel 31 through tapping screws, the fixed shaft is disposed in a bracket side plate 34 disposed at one end of a bracket bottom plate 35, a rectangular boss 32.3 is disposed on an end of the stator 32.1 of the motor 32 outside the reel 31, the bracket side plate 34 disposed at the other end of the bracket bottom plate 35 is, be equipped with the locating hole with boss 32.3 looks adaptation on the motor fixed plate 36, stator 32.1 wears to locate in the support curb plate 34 that is located the support bottom plate 35 other end, and boss 32.3 wears to locate in the locating hole, be equipped with the pinhole on the boss 32.3, the axis of pinhole and stator 32.1's axis mutually perpendicular, boss 32.3 wears to locate behind the locating hole, the pinhole is located the outside of motor fixed plate 36, adopt the pinhole to wear to locate motor 32 and spool 31 in boss 32.3 and fix a position, restriction motor 32 and spool 31 can not remove along the axis direction, roll up curtain piece 11 and spool 31 on rolling door 10 top pass through self-tapping screw fixed connection, it rotates around the axis of spool 31 to drive rolling door 10, thereby drive rolling door 10 carries out the rolling or opens and shuts the action, thereby control opening and closing of fan switching device and close.
Referring to fig. 1 to 4, the bracket side plate 34 is provided with a guide block at an opening of the roll screen housing 20, specifically, the guide block includes an upper guide block 37 and a lower guide block 38, the upper guide block 37 is provided to a left-turned side of the bracket side plate 34, and the upper guide block 37 is abutted against the left side wall 11.1.1 of the rolling shutter piece 11, the lower guide block 38 is provided on the lower hem of the bracket side plate 34, the lower guide block 38 is abutted against the right side wall 11.1.2 of the rolling sheet 11, and the rolling sheet 11 abutted between the upper guide block 37 and the lower guide block 38 and the rolling sheet 11 positioned in the rolling outer frame 20 are arranged in an included angle, when the driving mechanism 30 drives the rolling door 10 to roll, the rolling door 10 is located at the opening of the rolling door outer frame 20 and separated from the groove 21.5, and the upper guide block 37 and the lower guide block 38 play a role in guiding the rolling door 10, so that the rolling door 10 can be well transited to the scroll 31 from the opening; when the driving mechanism 30 drives the rolling door 10 to unwind, the rolling door 10 is located at the opening of the outer frame of the rolling door 10 and enters the groove 21.5, and the upper guide block 37 and the lower guide block 38 play a guiding role for the rolling door 10, so that the rolling door 10 can better transit from the opening to the groove 21.5, and the rolling door 10 can be unwound or wound more flexibly and smoothly.
Referring to fig. 1-4, a lower rolling shutter pendulum is arranged on the rolling shutter piece 11 at the bottom end of the rolling shutter door 10, an upper hook 11.3 is arranged at the upper part of the lower rolling shutter pendulum, the upper hook 11.3 of the lower rolling shutter pendulum is buckled and connected with a lower hook 11.2 of the rolling shutter piece 11 at the bottom end of the rolling shutter door 10, due to the fact that the lower rolling shutter pendulum has certain weight, the rolling shutter door 10 located in the outer rolling shutter frame 20 is always in a vertical state, and after the rolling shutter door 10 is uncoiled, the lower rolling shutter pendulum is embedded into a groove 21.5 of a section bar 21 far away from an opening, and the sealing performance of the fan opening and closing.
Referring to fig. 1-2, an embodiment of the present invention further discloses a ventilation device, which includes a fan 40 and the above fan opening and closing device, a ventilation opening is formed on the building wall 50, the fan 40 is disposed on the outer side of the building wall 50, an air inlet of the fan 40 is in butt joint with the ventilation opening, the fan opening and closing device is disposed on the inner side of the building wall 50, and an air outlet end is in butt joint with the ventilation opening.
Variations and modifications to the above-described embodiments may occur to those skilled in the art, which fall within the scope and spirit of the above description. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and variations of the present invention should fall within the scope of the claims of the present invention. Furthermore, although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.
Claims (10)
1. A fan opening and closing device is arranged at an air inlet of a fan (40);
the fan opening and closing device is characterized by comprising a rolling screen outer frame (20), a rolling screen door (10) and a driving mechanism (30), wherein an opening is formed in one side of the rolling screen outer frame (20) in the length direction, an air inlet end and an air outlet end are respectively arranged at two ends of the rolling screen outer frame (20) in the axis direction of a fan (40), the rolling screen outer frame (20) comprises a first end face (21.1), an inner wall face (21.3) and a second end face (21.2), the first end face (21.1) is located at the air inlet end, the second end face (21.2) is located at the air outlet end, the inner wall face (21.3) is respectively connected with the first end face (21.1) and the second end face (21.2), the inner wall face (21.3) is arranged in an arc face manner, a tangent plane at the connection position of the inner wall face (21.3) and the first end face (21.1) is superposed with the first end face (21.1), and a tangent plane at the connection position of the inner wall face (21.3) and the second end face (21.2) is perpendicular to, the inner wall surface (21.3) is provided with a groove (21.5) for mounting the rolling door (10);
the rolling slats door (10) imbeds in recess (21.5), rolling slats door (10) is rolled up curtain piece (11) by the multi-disc and is constituteed, roll up curtain piece (11) including rolling slats door piece main part (11.1), the upper portion right side of rolling slats door piece main part (11.1) is equipped with inside sunken last couple (11.3), the lower part of rolling slats door piece main part (11.1) is equipped with outside protruding lower couple (11.2), adjacent two roll up curtain piece (11) and pass through go up couple (11.3) with couple (11.2) lock is connected down, just down couple (11.2) include with vertical section (11.2.1) that roll up curtain piece main part (11.1) is connected, the opening setting of couple (11.2) is in the right side of vertical section (11.2.1), the lower part of rolling slats door piece main part (11.1) is located the left side of vertical section (11.2.1) is equipped with sunken first step (11.4), the left side of rolling slats door piece main part (11.1) is equipped with protruding second step (11.5) upper portion, the first step (11.4) is matched with the second step (11.5), and the distance between the second step (11.5) and the upper hook (11.3) is equal to the thickness of the vertical section (11.2.1);
the driving mechanism (30) is arranged at an opening of the rolling shutter outer frame (20), and the driving mechanism (30) is connected with the rolling shutter door (10).
2. The fan opening and closing device according to claim 1, wherein the groove (21.5) comprises a first side wall, a bottom wall (11.1.3) and a second side wall, the distance between the first side wall and the second side wall is larger than the thickness of the roller shutter door (10), and the ratio of the distance between the first side wall and the second side wall to the thickness of the roller shutter door (10) ranges from 1.1:1 to 1.3: 1.
3. The fan opening and closing device according to claim 2, wherein the first side wall is close to the air inlet end, the second side wall is close to the air outlet end, and a sealing wool top (22) is arranged on the second side wall.
4. The fan opening and closing device according to claim 3, wherein the outer rolling shutter frame (20) is composed of a section bar (21), a plurality of hollow first cavities (21.6) are arranged in the section bar (21), the outer rolling shutter frame (20) further comprises an outer wall surface (21.4), and two ends of the section bar (21) and the corresponding outer wall surface (21.4) are arranged at an angle of 45 degrees.
5. The fan opening and closing device according to any one of claims 1 to 4, wherein the inner wall of the lower hook (11.2) is U-shaped, the end of the upper hook (11.3) is provided with an elliptic cylinder (11.3.1), and the elliptic cylinder (11.3.1) is matched with the inner wall of the lower hook (11.2).
6. The fan opening and closing device according to claim 5, wherein an anti-drop hook (11.6) is arranged on the lower hook (11.2), the second step (11.5) comprises a straight section (11.5.2) and a bent section (11.5.1), one end of the straight section (11.5.2) is connected with the rolling shutter main body (11.1), the other end of the straight section (11.5.2) is connected with one end of the bent section (11.5.1), and the other end of the bent section (11.5.1) can be abutted against the anti-drop hook (11.6).
7. The fan opening and closing device according to claim 6, wherein a hollow second cavity is arranged in the roller shutter main body (11.1), the roller shutter main body (11.1) comprises a left side wall (11.1.1) and a right side wall (11.1.2), a plurality of first reinforcing ribs (11.7) are arranged in the second cavity, the first reinforcing ribs (11.7) are arranged in parallel at intervals along the height direction of the roller shutter main body (11.1), and two ends of the first reinforcing ribs (11.7) are respectively connected with the left side wall (11.1.1) and the right side wall (11.1.2).
8. The blower opening and closing device according to any one of claims 1-4 or 6-7, characterized in that the driving mechanism (30) comprises a scroll (31), a motor (32) and a bracket, the bracket comprises a bracket bottom plate (35) and bracket side plates (34), the bracket side plates (34) are respectively arranged at the two ends of the bracket bottom plate (35) along the length direction, the bracket side plate (34) is connected with the outer rolling screen frame (20), one end of the motor (32) is arranged in one end of the rolling shaft (31), the other end of the scroll (31) is connected with the bracket side plate (34) which is positioned at one end of the bracket bottom plate (35), the other end of the motor (32) is connected with the support side plate (34) positioned at the other end of the support bottom plate (35), and the rolling door (10) is connected with the scroll (31).
9. The fan opening and closing device according to claim 8, wherein a guide block is arranged at the opening of the outer rolling shutter frame (20) of the bracket side plate (34).
10. A ventilation device, characterized in that, includes a fan (40) and the fan opening and closing device of any claim 1-9, a vent is provided on the building wall (50), the fan (40) is provided on the outer side of the building wall (50), and the air inlet of the fan (40) is butted with the vent, the fan opening and closing device is provided on the inner side of the building wall (50), and the air outlet end is butted with the vent.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010617283.XA CN111749917B (en) | 2020-06-30 | 2020-06-30 | Fan opening and closing device and ventilation device |
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| CN202010617283.XA CN111749917B (en) | 2020-06-30 | 2020-06-30 | Fan opening and closing device and ventilation device |
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| CN111749917A true CN111749917A (en) | 2020-10-09 |
| CN111749917B CN111749917B (en) | 2021-12-31 |
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| CN202010617283.XA Active CN111749917B (en) | 2020-06-30 | 2020-06-30 | Fan opening and closing device and ventilation device |
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| WO2023138819A1 (en) * | 2022-01-24 | 2023-07-27 | Telefonaktiebolaget Lm Ericsson (Publ) | Device for cooling electronic equipment |
| CN116906105A (en) * | 2023-06-20 | 2023-10-20 | 国网上海市电力公司 | Ventilating and guiding device and method suitable for cable tunnel |
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| CN111749917B (en) | 2021-12-31 |
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