CN219549173U - Self-closing-preventing multi-blade synchronous regulating valve for exhaust fan - Google Patents
Self-closing-preventing multi-blade synchronous regulating valve for exhaust fan Download PDFInfo
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- CN219549173U CN219549173U CN202321062305.6U CN202321062305U CN219549173U CN 219549173 U CN219549173 U CN 219549173U CN 202321062305 U CN202321062305 U CN 202321062305U CN 219549173 U CN219549173 U CN 219549173U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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Abstract
The utility model relates to the technical field of purifying equipment, in particular to an anti-self-closing multi-blade synchronous regulating valve for an exhaust fan, which comprises a frame and blades rotatably arranged in the frame, wherein a vent is formed in the frame, the blades are provided with a plurality of blades which are uniformly arranged in the vent, connecting rods are arranged between the blades, a driving device is detachably connected outside the frame and is opposite to one blade, the driving device comprises a rotary switch shaft, a worm wheel and a transmission shaft, the rotary switch shaft and the transmission shaft are rotatably arranged on the driving device, the worm is fixedly connected at the end part of the rotary switch shaft, and the worm wheel is fixedly connected at the end part of the transmission shaft; the other end of the transmission shaft penetrates through the frame wall body and is fixedly connected with the blades; the axis of the rotary switch shaft is perpendicular to the axis of the transmission shaft, and the worm is meshed with the worm wheel.
Description
Technical Field
The utility model relates to the technical field of purifying equipment, in particular to an anti-self-closing multi-blade synchronous regulating valve for an exhaust fan.
Background
At present, in the air purification process, a multi-leaf regulating valve is required to be installed at a ventilating duct or a ventilating opening and used for regulating the size and the direction of purified air, so that the purification effect and the stability are guaranteed, the common multi-leaf regulating valve generally comprises an outer frame, blades and a regulating handle, the ventilating opening is arranged on the outer frame, the regulating handle controls the blades to rotate at the ventilating opening, and the size and the direction of the purified air are controlled by regulating the opening and closing angles of the blades; however, the volume of the industrial multi-leaf regulating valve is large, the side length is usually more than one meter, a plurality of blades in the multi-leaf regulating valve are usually arranged, and a linkage device is arranged between every two adjacent blades, but because of the large volume of the blades, the torque required by the blades during rotation is large, the rotation mode of directly adopting a rotating shaft for rotation is large in energy consumption, the balance of the air quantity and the direction is difficult to maintain, and meanwhile, the rotating parts of the blades are easy to loosen after long-time use, so that the problems of shaking, automatic closing and the like are easy to occur in the opening and closing process of the blades.
In order to solve the technical problem, chinese patent CN203585520U discloses a multi-page regulating valve, which comprises an outer frame, blades and a regulating handle, wherein a vent is arranged on the outer frame, a plurality of blades are fixed on the vent side by side through a rotating shaft, reinforcing ribs are arranged on the blades, the reinforcing ribs and the rotating shaft are of an integrated structure, the outer end of the rotating shaft is connected with the regulating handle, and sealing strips are further arranged on the edges of the periphery of the blades. The stability of linkage between the multiple leaves has been guaranteed to this patent, but this patent directly adopts the mode of pivot connection to rotate, and the rotation moment of torsion is big, drives the difficulty.
Therefore, the self-closing prevention multi-blade synchronous regulating valve for the exhaust fan is provided, and aims at blades with larger volumes, high-efficiency and labor-saving driving is provided, so that the problems of shaking, automatic closing and the like of the blades in the opening and closing process are solved by the technical personnel in the field.
Disclosure of Invention
The utility model aims to provide an anti-self-closing multi-blade synchronous regulating valve for an exhaust fan, which aims to solve the technical problems that blades per se are large in size, and shake and automatic closing are easy to generate in the opening and closing process in the prior art.
The technical scheme adopted for solving the technical problems is as follows: the self-closing prevention multi-blade synchronous regulating valve for the exhaust fan comprises a frame and blades rotatably arranged in the frame, wherein a vent is formed in the frame, the blades are provided with a plurality of blades which are uniformly arranged in the vent, connecting rods are arranged between the blades, a driving device is detachably connected outside the frame and is opposite to one blade, the driving device comprises a rotary switch shaft, a worm wheel and a transmission shaft, the rotary switch shaft and the transmission shaft are rotatably arranged on the driving device, the worm is fixedly connected to the end part of the rotary switch shaft, and the worm wheel is fixedly connected to the end part of the transmission shaft; the other end of the transmission shaft penetrates through the frame wall body and is fixedly connected with the blades; the axis of the rotary switch shaft is perpendicular to the axis of the transmission shaft, and the worm is meshed with the worm wheel.
Further, one end of the connecting rod is rotatably connected to one blade, and the other end of the connecting rod is rotatably connected to the other blade.
Further, a connecting rod is arranged between every two adjacent blades.
Further, the rotary switch shaft penetrates through the wall body of the driving device, one end of the rotary switch shaft is located in the driving device, and the other end of the rotary switch shaft is located outside the driving device.
Further, the worm is fixedly connected to the end of the rotary switch shaft located in the driving device.
Further, the transmission shaft penetrates through the wall body of the driving device, one end of the transmission shaft is located in the driving device, and the other end of the transmission shaft is located outside the driving device.
Further, the worm gear is fixedly connected to the end of the transmission shaft located in the driving device.
Further, the end part of the transmission shaft, which is positioned outside the driving device, penetrates through the frame wall body and is fixedly connected with the blades.
Further, the blades are of square plate-shaped structures, rotating shafts are arranged on two sides of the blades, and the rotating shafts are rotatably arranged in the frames; one surface of the blade is smooth, and the other surface of the blade is provided with a reinforcing rib.
Further, the axis of the transmission shaft is mutually overlapped with the axis of the blade rotating shaft.
The beneficial effects of the utility model are as follows: the multi-blade regulating valve is driven by meshing the worm wheel and the worm, so that the rotation of a plurality of blades is controlled, and the worm wheel and worm transmission has the characteristics of small volume, large transmission speed ratio, stable operation, small noise and large worm wheel output torque, so that the multi-blade regulating valve can stably and efficiently drive the plurality of blades to rotate, and the transmission of large blades is more stable; meanwhile, the worm gear has self-locking property, only the worm can drive the worm wheel, but the worm wheel cannot drive the worm, so that the self-closing caused by reversion in the rotation process of the blade is prevented, and the use stability is further improved.
Drawings
FIG. 1 is a perspective view of an anti-self-closing multi-vane synchronous control valve for an exhaust fan according to the present utility model.
FIG. 2 is another perspective view of the self-closing preventive multi-vane synchronous valve for exhaust fans of the present utility model.
Fig. 3 is a front cross-sectional view of the self-closing preventive multi-vane synchronous valve for exhaust fans of the present utility model.
Fig. 4 is an enlarged schematic view of the portion a in fig. 3.
The components in the drawings are marked as follows: 10. a frame; 11. a blade; 12. a vent; 13. a connecting rod; 20. a driving device; 21. rotating the switch shaft; 22. a worm; 23. a worm wheel; 24. and a transmission shaft.
Detailed Description
The present utility model will now be described in detail with reference to the accompanying drawings. The figure is a simplified schematic diagram illustrating the basic structure of the utility model only by way of illustration, and therefore it shows only the constitution related to the utility model.
Referring to fig. 1, 2 and 3, the utility model provides an anti-self-closing multi-vane synchronous regulating valve for an exhaust fan, which comprises a frame 10 and vanes 11 rotatably arranged in the frame 10, wherein the frame 10 is of a square shell-shaped structure with two open sides, a ventilation opening 12 is formed in the frame 10, and the vanes 11 are provided with a plurality of evenly arranged in the ventilation opening 12. When in use, the opening and closing control of the ventilation opening 12 is realized through the rotating blades 11.
Further, a connecting rod 13 is provided between the plurality of blades 11, one end of the connecting rod 13 is rotatably connected to one blade 11, and the other end of the connecting rod 13 is rotatably connected to the other blade 11. A connecting rod 13 is arranged between every two adjacent blades 11. When the utility model is used, after one blade 11 rotates, the connecting rod 13 drives the adjacent blades to synchronously rotate, so that the rotation synchronism of all the blades 11 is ensured, and the use stability of the utility model is improved.
In this embodiment, three blades 11 are provided, the connecting rod 13 is disposed between two adjacent blades 11, and meanwhile, the connecting rod 13 is provided with a plurality of connecting rods and is disposed at two ends of the blades 11 relatively, so as to ensure stability of rotation between the two blades 11, and improve use effect.
It will be appreciated that the synchronous linkage (e.g., link 13) used between the plurality of vanes 11 of the present utility model is consistent with commercially available multi-vane linkages, such as air conditioning vanes or multi-vane valves, and therefore, the specific linkage structure of the vanes 11 and the links 13 is not described in detail herein.
Further, the blade 11 has a square plate structure, two sides of the blade 11 are provided with rotating shafts (not shown), and the rotating shafts are rotatably arranged in the frame 10 by using bearings; the blade 11 one side is smooth plane, is equipped with the strengthening rib (not shown) on the blade 11 another side, during the use, smooth plane is just to air intake (not shown) for guarantee air intake stability, the strengthening rib is used for improving the intensity of blade 11, prevents that the air intake is too big to lead to damaging, improves stability in use and life.
Referring to fig. 3 and 4, a driving device 20 is detachably connected to the outer side of the frame 10, and the driving device 20 faces a blade 11. When in use, the driving device 20 is used for driving one blade 11 to rotate, so that all the blades 11 are driven to synchronously rotate, and the power output is ensured.
Further, the driving device 20 includes a rotary switch shaft 21, a worm 22, a worm wheel 23, and a transmission shaft 24, the driving device 20 is in a square shell structure with a hollow interior, the rotary switch shaft 21 penetrates through a wall of the driving device 20, one end of the rotary switch shaft 21 is located in the driving device 20, and the other end of the rotary switch shaft 21 is located outside the driving device 20. The rotary switch shaft 21 is rotatably disposed on the driving device 20, and a worm 22 is fixedly connected to an end portion of the rotary switch shaft 21 located in the driving device 20.
Further, the transmission shaft 24 penetrates through the wall body of the driving device 20, one end of the transmission shaft 24 is located in the driving device 20, and the other end of the transmission shaft 24 is located outside the driving device 20. The transmission shaft 24 is rotatably arranged on the driving device 20, and a worm wheel 23 is fixedly connected to the end part of the transmission shaft 24 positioned in the driving device 20. The end part of the transmission shaft 24, which is positioned outside the driving device 20, penetrates through the wall body of the frame 10 and is fixedly connected with the blades 11. Preferably, the transmission shaft 24 is fixedly connected with the middle blade 11 of the three blades 11, so as to ensure the stability of power transmission and further improve the stability of synchronous rotation of the plurality of blades 11.
Specifically, the axis of the rotary switch shaft 21 is perpendicular to the axis of the transmission shaft 24, and the worm 22 is meshed with the worm wheel 23. The axis of the transmission shaft 24 is mutually coincident with the axis of the rotation shaft of the blade 11.
When the rotary switch shaft 21 is driven to rotate during use, the worm 22 synchronously rotates, so that the worm wheel 23 and the transmission shaft 24 are driven to rotate, and the transmission shaft 24 further drives the blades 11 to rotate, so that the opening and closing operation of the blades 11 is realized. The utility model utilizes the characteristics of small volume, large transmission speed ratio, stable operation, small noise and large output torque of the worm wheel 23 of worm and gear transmission, so that the multi-blade regulating valve can stably and efficiently drive a plurality of blades 11 to rotate, and the stable use is ensured; meanwhile, the worm gear and worm transmission has self-locking property, and when the lead angle of the worm 22 is smaller than the equivalent friction angle between the meshing wheel teeth, reverse self-locking can be realized, namely, only the worm 22 can drive the worm wheel 23, and the worm wheel 23 cannot drive the worm 22. The self-locking property of the worm and gear transmission is utilized, so that the self-closing caused by the reversion in the rotation process of the blade 11 is prevented, and the use stability is further improved.
In this embodiment, a handle (not shown) is provided on the end of the rotary switch shaft 21 located outside the driving device 20, for facilitating the rotation of the operator.
In another embodiment, a servo feeding motor is disposed on the end portion of the rotary switch shaft 21 located outside the driving device 20, so as to realize full-automatic control, improve convenience in use, and further reduce labor intensity.
The specific operation mode of the utility model is as follows: the rotation switch shaft 21 is driven to rotate, the worm 22 synchronously rotates, the worm wheel 23 and the transmission shaft 24 are driven to rotate, the transmission shaft 24 further drives the blades 11 to rotate, and when one blade 11 rotates, the connecting rod 13 drives adjacent blades to synchronously rotate, so that all the blades 11 synchronously open and close, and the opening and closing control of the ventilation opening 12 is completed.
The utility model utilizes the meshing of the worm wheel 23 and the worm 22 to drive, realizes the control of the rotation of the plurality of blades 11, has the characteristics of small volume, large transmission speed ratio, stable operation, small noise and large output torque of the worm wheel 23, ensures that the multi-blade regulating valve can stably and efficiently drive the plurality of blades 11 to rotate, and is more stable for the transmission of large-scale blades 11; meanwhile, the worm gear and worm transmission has self-locking property, only the worm 22 can drive the worm wheel 23, but the worm wheel 23 cannot drive the worm 22, so that the self-closing caused by the reversion in the rotation process of the blade 11 is prevented, and the use stability is further improved.
It will be understood that the utility model has been described in terms of several embodiments, and that various changes and equivalents may be made to these features and embodiments by those skilled in the art without departing from the spirit and scope of the utility model. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the utility model without departing from the essential scope thereof. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.
Claims (10)
1. The utility model provides an anti-self-closing multi-blade synchronous regulating valve for exhaust fan, includes frame (10) and rotationally sets up blade (11) in frame (10), is formed with vent (12) in frame (10), blade (11) are equipped with a plurality of and evenly arrange in vent (12), are equipped with connecting rod (13) between blade (11), characterized in that, frame (10) are outer to be detachably connected with drive arrangement (20), drive arrangement (20) just face a blade (11), drive arrangement (20) include rotation switch axle (21), worm (22), worm wheel (23) and transmission shaft (24), rotation switch axle (21) and transmission shaft (24) rotationally set up on drive arrangement (20), worm (22) fixed connection is in rotation switch axle (21) tip, worm wheel (23) fixed connection is in transmission shaft (24) tip; the other end of the transmission shaft (24) penetrates through the wall body of the frame (10) and is fixedly connected with the blades (11); the axis of the rotary switch shaft (21) is perpendicular to the axis of the transmission shaft (24), and the worm (22) is meshed with the worm wheel (23).
2. The self-closing-preventing multi-vane synchronous regulating valve for an exhaust fan according to claim 1, wherein one end of the connecting rod (13) is rotatably connected to one vane (11), and the other end of the connecting rod (13) is rotatably connected to the other vane (11).
3. The self-closing-preventing multi-vane synchronous regulating valve for the exhaust fan according to claim 2, wherein a connecting rod (13) is arranged between every two adjacent vanes (11).
4. The self-closing-preventing multi-vane synchronous regulating valve for an exhaust fan according to claim 1, wherein the rotary switch shaft (21) penetrates through a wall body of the driving device (20), one end of the rotary switch shaft (21) is positioned in the driving device (20), and the other end of the rotary switch shaft (21) is positioned outside the driving device (20).
5. The self-closing-preventing multi-vane synchronous valve for an exhaust fan according to claim 4, wherein the worm (22) is fixedly connected to an end portion of the rotary switch shaft (21) located in the driving device (20).
6. The self-closing-preventing multi-vane synchronous regulating valve for the exhaust fan according to claim 1, wherein the transmission shaft (24) penetrates through a wall body of the driving device (20), one end of the transmission shaft (24) is positioned in the driving device (20), and the other end of the transmission shaft (24) is positioned outside the driving device (20).
7. The self-closing-preventing multi-vane synchronous valve for exhaust fans according to claim 6 characterized in that the worm wheel (23) is fixedly connected to the end of the drive shaft (24) located in the driving device (20).
8. The self-closing-preventing multi-vane synchronous regulating valve for the exhaust fan according to claim 1, wherein the end part of the transmission shaft (24) positioned outside the driving device (20) penetrates through the wall body of the frame (10) and is fixedly connected with the vane (11).
9. The self-closing-preventing multi-leaf synchronous regulating valve for the exhaust fan according to claim 1, wherein the blades (11) are of square plate-shaped structures, rotating shafts are arranged on two sides of the blades (11), and the rotating shafts are rotatably arranged in the frame (10); one surface of each blade (11) is in a smooth plane, and reinforcing ribs are arranged on the other surface of each blade (11).
10. The self-closing-preventing multi-vane synchronous regulating valve for an exhaust fan according to claim 9, wherein the axis of the transmission shaft (24) and the axis of the rotation shaft of the vane (11) coincide with each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321062305.6U CN219549173U (en) | 2023-05-06 | 2023-05-06 | Self-closing-preventing multi-blade synchronous regulating valve for exhaust fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321062305.6U CN219549173U (en) | 2023-05-06 | 2023-05-06 | Self-closing-preventing multi-blade synchronous regulating valve for exhaust fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219549173U true CN219549173U (en) | 2023-08-18 |
Family
ID=87737661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321062305.6U Active CN219549173U (en) | 2023-05-06 | 2023-05-06 | Self-closing-preventing multi-blade synchronous regulating valve for exhaust fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219549173U (en) |
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2023
- 2023-05-06 CN CN202321062305.6U patent/CN219549173U/en active Active
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