CN109084070B - Explosion-proof fume chamber blast gate drive mechanism - Google Patents
Explosion-proof fume chamber blast gate drive mechanism Download PDFInfo
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- CN109084070B CN109084070B CN201811292619.9A CN201811292619A CN109084070B CN 109084070 B CN109084070 B CN 109084070B CN 201811292619 A CN201811292619 A CN 201811292619A CN 109084070 B CN109084070 B CN 109084070B
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- 230000007246 mechanism Effects 0.000 title claims abstract description 65
- 239000003517 fume Substances 0.000 title claims abstract description 30
- 230000005540 biological transmission Effects 0.000 claims abstract description 114
- 238000004880 explosion Methods 0.000 claims 4
- 230000003139 buffering effect Effects 0.000 abstract 1
- 238000005457 optimization Methods 0.000 description 12
- 238000009423 ventilation Methods 0.000 description 9
- 230000009471 action Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000443 aerosol Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000001717 pathogenic effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 230000009747 swallowing Effects 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/46—Mechanical actuating means for remote operation
- F16K31/465—Mechanical actuating means for remote operation by flexible transmission means, e.g. cable, chain, bowden wire
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K35/00—Means to prevent accidental or unauthorised actuation
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air-Flow Control Members (AREA)
Abstract
The utility model provides an explosion-proof fume chamber blast gate drive mechanism, includes drive mechanism, window that is connected with drive mechanism through the conveyer belt and the blast gate of being connected with drive mechanism, drive mechanism include the fixed plate that two intervals set up, be provided with transmission shaft A, transmission shaft B and transmission shaft C through the bearing between the fixed plate, transmission shaft A pass the fixed plate and pass through the conveyer belt and be connected with the window pivot, transmission shaft A and transmission shaft B on all be provided with the belt pulley, be connected through the driving belt between two belt pulleys, transmission shaft C one end pass the fixed plate and be connected with the blade pivot on the blast gate blade be provided with the self-locking mechanism of transmission and self-locking function on transmission shaft B and the transmission shaft C, this drive mechanism design benefit realizes drive mechanism's miniaturization, is convenient for install and maintain and dismantle, realizes the self-locking function of mechanism, improves life simultaneously, has the buffering protect function.
Description
Technical Field
The invention relates to the technical field of laboratory fume hoods, in particular to an explosion-proof fume hood air valve transmission mechanism which realizes linear control of ventilation quantity of a fume hood and has a self-locking protection function.
Background
Fume hood is an integral part of laboratory ventilation design, and in order to prevent laboratory staff from inhaling or swallowing some toxic, pathogenic or non-toxic chemicals and organisms, and to prevent the absorption of some vapors, gases and particulates (smoke, soot, dust and aerosols), the contaminants must be removed by fume hood, fume hood or local ventilation.
At present, the fume chamber that present laboratory inside was used is in order to realize the linear control of fume chamber ventilation volume, install the executor on the damper generally, install the door high sensor on the fume chamber, simultaneously at ventilation pipeline internally mounted air sensor, the balanced linear control of the inside fume chamber ventilation volume of whole laboratory just can be acted on to the three simultaneously, the control of current fume chamber has the complicated problem of control components and parts, the aforesaid components and parts need electric control simultaneously in the control process, can not reach the explosion-proof purpose of fume chamber, the proposal of solution in patent CN 107838163A still has the following problem, when the window reciprocates and drives the damper and open and close, it can not realize locking to reach the damper after the complete opening of damper or complete closure, under the tiny movement of wind-force or window, the damper can produce tiny rotation, influence the ventilation volume of damper, and the window is moved to minimum or the highest extreme position location back from top to bottom, can not guarantee that the damper blade that the connection realizes the completion is fixed, also can produce the tiny change of position, the window is driven simultaneously and is rotated and has no protection buffer structure, long service life, the maintenance cost is high, and the problem can not appear.
Disclosure of Invention
The invention aims to provide an explosion-proof type fume hood air valve transmission mechanism, which is ingenious in design, realizes miniaturization of the transmission mechanism, is convenient to mount, maintain and dismount, realizes a self-locking function of the mechanism, prolongs the service life and has a buffer protection function.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides an explosion-proof fume chamber blast gate drive mechanism, includes drive mechanism 5, window 2 and blast gate 6 of being connected with drive mechanism 5 through conveyer belt 4, drive mechanism 5 include two fixed plates 9 that the interval set up, be provided with transmission shaft A10, transmission shaft B11 and transmission shaft C12 through the bearing between fixed plates 9, transmission shaft A10 pass fixed plate 9 and be connected with window pivot 3 through conveyer belt 4, transmission shaft A10 and transmission shaft B11 on all be provided with belt pulley 14, be connected through driving belt 13 between two belt pulleys 14, transmission shaft C12 one end pass fixed plate 9 and be connected with the blade pivot 8 on the blast gate blade 7 transmission shaft B11 and transmission shaft C12 on be provided with the self-locking mechanism that plays transmission and self-locking function, self-locking mechanism include the runner A15 that sets up on transmission shaft B11, the runner B16 that sets up on transmission shaft C12 and with the coaxial setting on transmission shaft B11's rotating arm 17 the outside end of rotating arm 17 be provided with guiding axle 18 on the outer side of rotating arm A10 and transmission shaft B11 the one end pass through driving belt 13 and be connected with blade pivot 8, transmission shaft C12 one end is provided with guiding groove 19 along the radial direction 19, along the guiding groove 19 is installed to the inside along the guiding groove.
As optimization, be provided with the dead lever that is located the four corners between the fixed plate, pass through screw connection between fixed plate and the fixed plate, one side and the fume chamber main part upper end fixed connection of fixed plate.
As optimization, the rotating arm 17 and the rotating wheel a15 are coaxially arranged on the transmission shaft B11, the rotating arm 17 is of a strip-shaped structure, and the length of the rotating arm 17 is greater than the radius of the rotating wheel a 15.
As an optimization, the rotating wheel a15 is provided with an arc-shaped groove a20, the rotating arm 17 is arranged in the middle of the arc-shaped groove a20, and the arc-shaped groove a20 is distributed symmetrically left and right along the rotating arm 17.
As an optimization, the rotating wheel B16 is provided with two circular arc grooves B21 with the same radius, the circular arc grooves B21 are symmetrically distributed along the guide groove 19, the guide groove 19 is arranged along the radius of the rotating wheel B16, and the center of the rotating wheel B16 is on the central line of the length direction of the guide groove 19.
Preferably, the distance between the transmission shaft B11 and the transmission shaft C12 is smaller than the sum of the radius of the rotating wheel A15 and the radius of the rotating wheel B16.
As an optimization, the radius of the circular arc-shaped groove B21 is equal to the radius of the rotating wheel a 15.
Preferably, the radius of the circular arc-shaped groove A20 is equal to the radius of the rotating wheel B16.
As an optimization, the transmission shaft C12 is connected with the blade rotating shaft 8 through a flange, and the blade rotating shaft 8 is arranged on the rotation center line of the air valve blade 7.
Preferably, the guiding groove 19 is arranged outwards along the radial direction of the rotating wheel B16, and the outer side of the guiding groove 19 is open, and the guiding shaft 18 can slide along the guiding groove 19 and can be completely separated from the guiding groove 19.
The beneficial effects of the invention are as follows: compared with the prior art, the blast gate transmission mechanism of the explosion-proof type fume hood is miniaturized in structure, convenient to install, capable of converting up-and-down movement of a window into opening and closing of blast gate blades, capable of achieving a self-locking function when the blast gate is completely closed or in a completely opened state through the self-locking mechanism, capable of effectively preventing the blast gate blades from rotating under the action of wind force in the blast gate when the blast gate is completely opened or in a completely closed state, capable of effectively controlling the rotation starting point and the rotation end point of the blast gate blades, capable of avoiding excessive rotation of the blast gate, capable of avoiding damage to the blast gate blades caused by extrusion of the blast gate blades, capable of prolonging the service life, capable of avoiding excessive rotation, capable of avoiding the blast gate from increasing due to wind speed, capable of driving the transmission mechanism to cause window movement, capable of preventing the blast gate from reversely controlling the window movement, and convenient to install and detach.
Drawings
FIG. 1 is a first working state diagram of the present invention;
FIG. 2 is a second working state diagram of the present invention;
FIG. 3 is an enlarged view of the internal structure of the transmission mechanism of the present invention;
FIG. 4 is a front view of the transmission mechanism of the present invention;
FIG. 5 is an enlarged view showing the internal structure of the transmission mechanism in the opened state of the damper according to the present invention;
FIG. 6 is an enlarged view showing the internal structure of the transmission mechanism in the closed state of the damper according to the present invention;
FIG. 7 is an enlarged view of the self-locking state of the transmission mechanism of the present invention;
the device comprises a ventilation cabinet 1, a window 2, a window 3 rotating shaft, a conveyor belt 4, a transmission mechanism 5, a wind valve 6, a wind valve blade 7, a blade 8 rotating shaft, a fixing plate 9, a transmission shaft A10, a transmission shaft B11, a transmission shaft C12, a transmission belt 13, a belt pulley 14, a rotating wheel A15, a rotating wheel B16, a rotating arm 17, a guide shaft 18, a guide groove 19, a circular-arc-shaped groove A20 and a circular-arc-shaped groove B21.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present invention, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present invention and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
The utility model provides an explosion-proof fume chamber blast gate drive mechanism, includes drive mechanism 5, window 2 and blast gate 6 of being connected with drive mechanism 5 through conveyer belt 4, drive mechanism 5 include two fixed plates 9 that the interval set up, be provided with transmission shaft A10, transmission shaft B11 and transmission shaft C12 through the bearing between fixed plates 9, transmission shaft A10 pass fixed plate 9 and be connected with window pivot 3 through conveyer belt 4, transmission shaft A10 and transmission shaft B11 on all be provided with belt pulley 14, be connected through driving belt 13 between two belt pulleys 14, transmission shaft C12 one end pass fixed plate 9 and be connected with the blade pivot 8 on the blast gate blade 7 transmission shaft B11 and transmission shaft C12 on be provided with the self-locking mechanism that plays transmission and self-locking function, self-locking mechanism include the runner A15 that sets up on transmission shaft B11, the runner B16 that sets up on transmission shaft C12 and with the coaxial setting on transmission shaft B11's rotating arm 17 the outside end of rotating arm 17 be provided with guiding axle 18 on the outer side of rotating arm A10 and transmission shaft B11 the one end pass through driving belt 13 and be connected with blade pivot 8, transmission shaft C12 one end is provided with guiding groove 19 along the radial direction 19, along the guiding groove 19 is installed to the inside along the guiding groove.
In the embodiment shown in fig. 1 and 2, the window of fume chamber front end can reciprocate under the manual operation of experimenter, be provided with the belt of perpendicular distribution in the rear side both ends position of window, be provided with window pivot in the top position of fume chamber simultaneously, window pivot and window epaxial belt meshing, window reciprocates and drives window pivot's rotation, be connected through the drive belt between window pivot and drive mechanism and realize the transmission, drive mechanism's the other end is connected with the blade pivot on the blast gate, install the blast gate blade in the blade pivot, the opening of driving the blast gate blade through the rotation of blade pivot is closed, whole drive mechanism fixed mounting is in the top position of fume chamber main part, realize drive mechanism's fixed plate through fixing bolt, thereby realize drive mechanism's fixed, moreover dismantle simple to operate.
In the embodiment shown in fig. 3, the transmission mechanism is arranged between two fixing plates and on three different transmission shafts, the two sides of each transmission shaft are respectively arranged on the fixing plates on the two sides through bearings, the transmission shaft A and the transmission shaft B are connected through a transmission belt, the transmission shaft B is further provided with a rotating wheel A and a rotating arm, the rotating wheel A and the rotating arm rotate simultaneously through the rotation of the transmission shaft B, the rotating wheel A and the rotating arm are fixedly connected, the rotating wheel A is provided with an arc-shaped groove A, the arc center line of the arc-shaped groove A coincides with the length direction center line of the rotating arm, one end of the rotating arm facing to the outer side is provided with a guide shaft, the rotating wheel B arranged on the transmission shaft C is provided with a guide groove which is radially arranged, the guide shaft can slide in the guide groove, the guide shaft can slide along the axis of the transmission shaft B, and the guide shaft can drive the rotating wheel B to rotate along the axis of the transmission shaft C at the same time, and capacity transmission between the transmission shaft B and the transmission shaft C is realized.
In fig. 4, two arc-shaped grooves B with the same shape are formed in a rotating wheel B, the diameter of each arc-shaped groove B is equal to that of a rotating wheel a, at the moment, the rotating wheel a can rotate in an arc of the arc-shaped groove B along with the rotation of the rotating wheel B, at the moment, the rotating wheel B rotates under the driving of a guide shaft, and meanwhile, the rotating wheel a and the rotating wheel B rotate simultaneously, so that the rotation transmission is realized.
In fig. 5, when the rotating wheels a and B rotate to the state, the driving mechanism is in the open state of the air valve, at this time, the driving shaft a is driven by the driving belt to rotate anticlockwise, meanwhile, the rotating wheel a is driven by the driving belt to rotate anticlockwise, the rotating arm coaxially arranged with the rotating wheel a also rotates anticlockwise, the guide shaft at the front end of the rotating arm moves towards the outer side of the guide groove along the guide groove, meanwhile, the rotating wheel B is driven to rotate clockwise along the driving shaft C, and the rotating wheel B rotates to drive the blade rotating shaft to rotate clockwise, so that the air valve is opened.
In fig. 6, when the rotating wheels a and B rotate to the state, the driving mechanism is in the closed state of the air valve, at this time, the driving shaft a is driven by the driving belt to rotate clockwise, meanwhile, the rotating wheel a is driven by the driving belt to rotate clockwise, the rotating arm coaxially arranged with the rotating wheel a also rotates clockwise, the guide shaft at the front end of the rotating arm moves towards the outer side of the guide groove along the guide groove, meanwhile, the rotating wheel B is driven to rotate anticlockwise along the driving shaft C, and the rotating wheel B rotates to drive the rotating shaft of the blade to rotate anticlockwise, so that the air valve is closed.
In fig. 7, when the rotating wheel a and the rotating wheel B rotate to the state, the maximum limit state of the transmission mechanism is opened for the air valve, at this time, the transmission shaft a is driven by the transmission belt to rotate anticlockwise, meanwhile, the rotating wheel a is driven by the transmission belt to rotate anticlockwise, the rotating arm coaxially arranged with the rotating wheel a also rotates anticlockwise, the guide shaft at the front end of the rotating arm moves along the guide groove to the outer side of the guide groove, meanwhile, the rotating wheel B is driven to rotate clockwise along the transmission shaft C, the rotating wheel B rotates to drive the blade rotating shaft to rotate clockwise, so that the air valve is opened.
The same principle is that when the rotating arm rotates to the leftmost position as shown in fig. 7, namely, after rotating clockwise by 90 degrees, the rotating arm rotates to a limit position, the air valve is in a completely closed state, the distance between the transmission shaft B and the transmission shaft C is smaller than the sum of the radius of the rotating wheel A15 and the radius of the rotating wheel B16, at the moment, the part inside the circular arc-shaped groove B on the rotating wheel B at the rotating wheel A position can squeeze the rotating wheel A, so that the rotating wheel A can not rotate clockwise any more, at the moment, the locking between the rotating wheel A and the rotating wheel B is formed, the locking of the whole transmission mechanism is realized, the air valve is ensured not to rotate any more, at the moment, the air valve is in the completely closed state, and self-locking is formed, and the transmission mechanism is not driven to cause the window to move when the ventilation quantity in the air valve changes.
As optimization, be provided with the dead lever that is located the four corners between the fixed plate, pass through screw connection between fixed plate and the fixed plate, one side and the fume chamber main part upper end fixed connection of fixed plate.
As optimization, the rotating arm 17 and the rotating wheel a15 are coaxially arranged on the transmission shaft B11, the rotating arm 17 is of a strip-shaped structure, and the length of the rotating arm 17 is greater than the radius of the rotating wheel a 15.
As an optimization, the rotating wheel a15 is provided with an arc-shaped groove a20, the rotating arm 17 is arranged in the middle of the arc-shaped groove a20, and the arc-shaped groove a20 is distributed symmetrically left and right along the rotating arm 17.
As an optimization, the rotating wheel B16 is provided with two circular arc grooves B21 with the same radius, the circular arc grooves B21 are symmetrically distributed along the guide groove 19, the guide groove 19 is arranged along the radius of the rotating wheel B16, and the center of the rotating wheel B16 is on the central line of the length direction of the guide groove 19.
Preferably, the distance between the transmission shaft B11 and the transmission shaft C12 is smaller than the sum of the radius of the rotating wheel A15 and the radius of the rotating wheel B16.
As an optimization, the radius of the circular arc-shaped groove B21 is equal to the radius of the rotating wheel a 15.
Preferably, the radius of the circular arc-shaped groove A20 is equal to the radius of the rotating wheel B16.
As an optimization, the transmission shaft C12 is connected with the blade rotating shaft 8 through a flange, and the blade rotating shaft 8 is arranged on the rotation center line of the air valve blade 7.
Preferably, the guiding groove 19 is arranged outwards along the radial direction of the rotating wheel B16, the outer side of the guiding groove 19 is opened, and the guiding shaft 18 can slide along the guiding groove 19 and completely separate from the guiding groove 19.
The air valve transmission mechanism of the explosion-proof type fume hood is miniaturized in structure, convenient to install, capable of converting up-and-down movement of a window into opening and closing of air valve blades, capable of achieving a self-locking function when the air valve is completely closed or in a completely opened state through the self-locking mechanism, capable of effectively preventing the air valve blades from rotating under the action of air valve wind force when the air valve is completely opened or in a completely closed state, capable of effectively controlling the rotation starting point and the rotation end point of the air valve blades, capable of avoiding damage to the air valve blades caused by extrusion due to excessive rotation of the air valve, capable of prolonging the service life, capable of avoiding excessive rotation, capable of avoiding the movement of the window due to the fact that the air valve is increased due to the fact that the air speed is increased, capable of driving the transmission mechanism, capable of preventing the air valve from reversely controlling the window movement, and convenient to install and detach.
The foregoing embodiments are merely specific examples of the present invention, and the scope of the present invention includes, but is not limited to, the forms and styles of the foregoing embodiments, and any suitable changes or modifications made by those skilled in the art consistent with the present invention shall fall within the scope of the present invention.
Claims (5)
1. The utility model provides an explosion-proof fume chamber blast gate drive mechanism, includes drive mechanism (5), window (2) and blast gate (6) of being connected with drive mechanism (5) that are connected with drive mechanism (5) through conveyer belt (4), its characterized in that: the transmission mechanism (5) comprises two fixed plates (9) which are arranged at intervals, a transmission shaft A (10), a transmission shaft B (11) and a transmission shaft C (12) are arranged between the fixed plates (9) through bearings, the transmission shaft A (10) passes through the fixed plates (9) to be connected with a window rotating shaft (3) through a transmission belt (4), belt pulleys (14) are arranged on the transmission shaft A (10) and the transmission shaft B (11), two belt pulleys (14) are connected through a transmission belt (13), one end of the transmission shaft C (12) passes through the fixed plates (9) to be connected with a blade rotating shaft (8) on a wind valve blade (7), a self-locking mechanism which plays a transmission and self-locking function is arranged on the transmission shaft B (11) and the transmission shaft C (12), the self-locking mechanism comprises a rotating wheel A (15) arranged on the transmission shaft B (11), a rotating wheel B (16) arranged on the transmission shaft C (12) and a rotating wheel (17) coaxially arranged on the transmission shaft B (11) with the rotating wheel A (15), one end of the transmission shaft C (12) passes through the fixed plates (9) to be connected with a blade rotating shaft (8) on the wind valve blade (7), one end of the transmission shaft B (12) is provided with a self-locking mechanism which has a self-locking mechanism which plays a transmission function, the self-locking mechanism is arranged on the transmission shaft B (12, and the self-locking mechanism is provided with a guide shaft B (12) through a guide shaft, the guide shaft (18) is arranged inside the guide groove (19) and can slide along the guide groove (19); the rotating arm (17) and the rotating wheel A (15) are coaxially arranged on the transmission shaft B (11), the rotating arm (17) is of a strip-shaped structure, and the length of the rotating arm (17) is larger than the radius of the rotating wheel A (15); the rotating wheel A (15) is provided with an arc-shaped groove A (20), the rotating arm (17) is arranged in the middle of the arc-shaped groove A (20), and the arc-shaped groove A (20) is symmetrically distributed along the rotating arm (17) left and right; the rotating wheel B (16) is provided with two circular arc grooves B (21) with the same radius, the circular arc grooves B (21) are distributed symmetrically left and right along the guide groove (19), the guide groove (19) is arranged along the radius of the rotating wheel B (16), and the circle center of the rotating wheel B (16) is arranged on the central line of the length direction of the guide groove (19); the distance between the transmission shaft B (11) and the transmission shaft C (12) is smaller than the sum of the radius of the rotating wheel A (15) and the radius of the rotating wheel B (16); the guide groove (19) is arranged outwards along the radial direction of the rotating wheel B (16), the outer side of the guide groove (19) is opened, and the guide shaft (18) can slide along the guide groove (19) and can be completely separated from the guide groove (19).
2. An explosion proof fume hood damper drive mechanism according to claim 1, wherein: fixing rods positioned at four corners are arranged between the fixing plates, the fixing plates are connected with each other through screws, and one side of each fixing plate is fixedly connected with the upper end of the main body of the ventilating cabinet.
3. An explosion proof fume hood damper drive mechanism according to claim 1, wherein: the radius of the arc-shaped groove B (21) is equal to the radius of the rotating wheel A (15).
4. An explosion proof fume hood damper drive mechanism according to claim 1, wherein: the radius of the arc-shaped groove A (20) is equal to the radius of the rotating wheel B (16).
5. An explosion proof fume hood damper drive mechanism according to claim 1, wherein: the transmission shaft C (12) is connected with the blade rotating shaft (8) through a flange, and the blade rotating shaft (8) is arranged on the rotation center line of the air valve blade (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811292619.9A CN109084070B (en) | 2018-11-01 | 2018-11-01 | Explosion-proof fume chamber blast gate drive mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811292619.9A CN109084070B (en) | 2018-11-01 | 2018-11-01 | Explosion-proof fume chamber blast gate drive mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109084070A CN109084070A (en) | 2018-12-25 |
| CN109084070B true CN109084070B (en) | 2023-10-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811292619.9A Active CN109084070B (en) | 2018-11-01 | 2018-11-01 | Explosion-proof fume chamber blast gate drive mechanism |
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| CN (1) | CN109084070B (en) |
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| GB631131A (en) * | 1946-07-16 | 1949-10-27 | Teleflex Prod Ltd | Improvements in and relating to locking devices in irreversible transmissions |
| GB1588712A (en) * | 1976-10-15 | 1981-04-29 | Turner Ltd H | Window adjustment mechanism |
| US4389014A (en) * | 1981-04-16 | 1983-06-21 | Melnor Industries, Inc. | Vent damper with emergency manual override |
| EP0924475A1 (en) * | 1997-12-15 | 1999-06-23 | Kyoritsu Air Tech Inc. | Airflow-adjusting damper |
| JP2009136590A (en) * | 2007-12-08 | 2009-06-25 | Nobuyuki Tsuboi | Automatic opening/closing device for hanging member |
| CN101932464A (en) * | 2008-02-28 | 2010-12-29 | 爱信精机株式会社 | Vehicle door opening/closing device |
| CN201355106Y (en) * | 2008-12-30 | 2009-12-02 | 烟台良荣机械精业有限公司 | Automatic control intermediate air door |
| CN202202690U (en) * | 2011-07-15 | 2012-04-25 | 广州市瑞翔机电有限公司 | Clutch device |
| CN204267756U (en) * | 2014-11-28 | 2015-04-15 | 嘉兴鸿利机械有限公司 | Air-valve can be located |
| CN207019245U (en) * | 2017-05-05 | 2018-02-16 | 北京吉盛机电设备有限公司 | The combination air-valve of new type sealing device |
| CN207776697U (en) * | 2017-11-29 | 2018-08-28 | 应得来 | A kind of aluminum window with automatic adjustment air quantity function |
| CN209084134U (en) * | 2018-11-01 | 2019-07-09 | 山东龙腾电力科技有限公司 | A kind of explosion-proof type vent cabinet air-valve transmission mechanism |
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| CN109084070A (en) | 2018-12-25 |
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