CN215980856U - Air volume adjusting valve for ventilating duct - Google Patents
Air volume adjusting valve for ventilating duct Download PDFInfo
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- CN215980856U CN215980856U CN202121745123.XU CN202121745123U CN215980856U CN 215980856 U CN215980856 U CN 215980856U CN 202121745123 U CN202121745123 U CN 202121745123U CN 215980856 U CN215980856 U CN 215980856U
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- air volume
- volume adjusting
- rotating shaft
- air
- guide groove
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Abstract
The utility model discloses an air volume regulating valve for a ventilating duct, wherein an air duct is arranged inside a valve body; the valve body is provided with a vent; the air quantity adjusting unit comprises guide grooves arranged on two opposite side walls of the air channel, blades arranged in the air channel and a rotating shaft arranged on the blades; the guide groove extends along the length direction of the air duct and is provided with an open end close to the ventilation opening and a closed end far away from the open end; two ends of the rotating shaft are respectively and movably arranged in the guide grooves on the corresponding sides; a detachable limiting piece is arranged on the side wall of the valve body; one end of the limiting piece extends into the guide groove, and a limiting space is formed between the limiting piece and the closed end of the guide groove; the rotating shaft moves along the guide groove and is provided with an installation position; in the mounting position, the rotating shaft is limited in the limiting space; the driving assembly is arranged on the valve body and used for driving the blades to rotate. The blades, the rotating shaft and other parts of the air volume adjusting valve are convenient and quick to mount and dismount, time and labor are saved, and the assembly operation requirement of the air volume adjusting valve is effectively met.
Description
Technical Field
The utility model relates to the technical field of ventilation equipment, in particular to an air volume adjusting valve for a ventilation pipeline.
Background
In ventilation and environmental protection projects, air volume regulating valves are mounted on ventilation pipelines and serve as control devices for regulating or cutting off the flow of a gas medium.
In the air volume adjusting valve in the prior art, the blades and the blade rotating shaft are separated from each other so as to be convenient for installing the blades. The specific installation mode is as follows: the blade is arranged in the valve body in advance, the rotating shaft is inserted into a mounting hole reserved in the surface of the valve body from the outside of the valve body, and the rotating shaft is inserted into the mounting hole in the blade in a knocking mode. The installation mode is tedious, time-consuming and labor-consuming, and when the blade or the rotating shaft needs to be maintained, the blade and the rotating shaft are difficult to disassemble.
SUMMERY OF THE UTILITY MODEL
In view of the above technical problems, the present invention aims to: the utility model provides an air regulation valve for air pipe, parts such as blade, pivot installation and dismantlement convenient and fast, and labour saving and time saving effectively satisfies air regulation valve's equipment operation demand.
The technical solution of the utility model is realized as follows: an air volume adjusting valve for a ventilating duct comprises a valve body, an air volume adjusting unit and a driving assembly; an air duct is arranged inside the valve body; the valve body is provided with a vent communicated with the air duct;
the air quantity adjusting unit comprises guide grooves arranged on two opposite side walls of the air channel, blades arranged in the air channel and a rotating shaft arranged on the blades;
the guide groove extends along the length direction of the air duct and is provided with an open end close to the ventilation opening and a closed end far away from the open end; two ends of the rotating shaft are movably arranged in the guide grooves on the corresponding sides respectively;
a detachable limiting piece is arranged on the side wall of the valve body; one end of the limiting piece extends into the guide groove, and a limiting space is formed between the limiting piece and the closed end of the guide groove;
the rotating shaft moves along the guide groove and is provided with an installation position; in the mounting position, the rotating shaft is limited in the limiting space;
the driving assembly is arranged on the valve body and used for driving the blades to rotate.
Furthermore, a closed end of the guide groove is provided with a closed surface; the closed surface is an arc surface; the arc surface is matched with the peripheral surface of the rotating shaft.
Furthermore, a through hole is formed in the bottom surface of the guide groove; the limiting piece is in threaded connection with the through hole; one end of the limiting part, which extends into the guide groove, is a cylinder.
Further, the driving assembly comprises a screw rod, a connecting rod and a rotating seat; the first end of the connecting rod is hinged with the blade, and the rotating seat is hinged with the second end of the connecting rod; the screw rod is in threaded connection with the valve body, and one end of the screw rod is rotationally connected with the rotating seat.
Furthermore, the air volume adjusting units are arranged in at least two groups along the width direction of the air duct.
Furthermore, connecting components are arranged between every two air volume adjusting units; the connecting assembly comprises a first connecting piece and a second connecting piece hinged to two ends of the first connecting piece; one of the second connecting pieces is fixedly connected with the blades of one group of air volume adjusting units in the two air volume adjusting units, and the other second connecting piece is fixedly connected with the blades of the other group of air volume adjusting units in the two air volume adjusting units.
Due to the application of the technical scheme, compared with the prior art, the utility model has the following advantages:
according to the utility model, through the use of the rotating shaft and the guide groove, the rotating shaft can enter the guide groove from the open end of the guide groove and move back and forth in the guide groove, so that the blade can freely enter and exit the valve body. Through the cooperation use of locating part, can be spacing the pivot in the guide way for the pivot can only rotate under spacing state. Through the cooperation use of above-mentioned mode, parts such as blade, pivot installation and dismantlement convenient and fast, and labour saving and time saving effectively satisfies air regulation valve's equipment operation demand.
Drawings
The technical scheme of the utility model is further explained by combining the accompanying drawings as follows:
FIG. 1 is a schematic three-dimensional structure of the overall structure of the present invention;
FIG. 2 is an enlarged view taken at A in FIG. 1;
FIG. 3 is a front view structural schematic diagram of FIG. 1;
FIG. 4 is a cross-sectional view taken at D-D of FIG. 3;
FIG. 5 is an enlarged view of FIG. 4 at B;
FIG. 6 is a schematic three-dimensional structure of the valve body of the present invention;
FIG. 7 is a schematic three-dimensional view of a blade, drive assembly, etc. of the present invention;
FIG. 8 is a schematic three-dimensional structure of the driving assembly of the present invention;
FIG. 9 is a schematic three-dimensional structure of a blade and a shaft according to the present invention;
wherein: 1. a valve body; 11. a guide groove; 12. a closed face; 13. a through hole; 14. a sealing strip; 2. a blade; 3. a rotating shaft; 31. a wear-resistant sleeve; 4. a limiting member; 5. a first connecting member; 51. a second connecting member; 6. a screw; 61. a rotating seat; 62. a connecting rod.
Detailed Description
The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the utility model easier to understand by those skilled in the art, and thus will clearly and clearly define the scope of the utility model.
Fig. 1 to 9 show an air volume adjusting valve for a ventilation duct according to the present invention, which is generally installed at a joint of the ventilation duct to adjust the ventilation volume of the ventilation duct.
The air volume adjusting valve comprises a valve body 1, an air volume adjusting unit and a driving assembly. The valve body 1 is a cavity structure formed by welding metal materials. The interior of the valve body 1 forms an air duct. The two ends of the air duct on the valve body 1 form a ventilation opening communicated with the air duct. The cross section of the air duct is rectangular, and the ventilation opening is rectangular. The air quantity adjusting unit is arranged in the air duct and comprises guide grooves 11 welded on two opposite side walls of the air duct, blades 2 and rotating shafts 3 arranged on the blades 2. The blades 2 are mounted in the wind tunnel. The blade 2 and the rotating shaft 3 are connected by welding. The guide groove 11 extends in the length direction of the air duct and has an open end close to the ventilation opening and a closed end remote from the open end. The width of the guide groove 11 is adapted to the outer diameter of the rotating shaft 3, and two ends of the rotating shaft 3 are movably mounted in the guide grooves 11 on the corresponding sides respectively, so that the rotating shaft can move in the guide grooves 11 and rotate around the central axis of the rotating shaft. The distance between the bottom surfaces of the two guide grooves 11 is matched with the distance between the two ends of the rotating shaft 3. A through hole 13 is formed at a predetermined position in the bottom wall of the guide groove 11. The through hole 13 penetrates the side wall of the valve body 1. The stopper 4 is mounted in the through hole 13. The stopper 4 can be inserted into the through hole 13 from the outside of the valve body 1. One end of the limiting piece 4 extends into the guide groove 11, and a limiting space is formed between the limiting piece and the closed end of the guide groove 11. When the rotating shaft 3 moves to a predetermined position along the guide groove 11, the rotating shaft 3 is limited in the limiting space. The spacing between the limiting piece 4 and the closed end of the guide groove 11 is matched with the outer diameter of the rotating shaft 3, and in the limiting space, the rotating shaft 3 can only rotate but cannot move along the guide groove 11. The driving assembly is mounted on the valve body 1 for driving the vane 2 to rotate around the central axis of the rotating shaft 3. The size and the shape of the blade 2 are adapted to the inner contour of the air duct, and the blade 2 can be switched back and forth between an open state for opening the air duct and a closed state for closing the air duct through the rotation of the blade 2, so that the ventilation quantity of the air duct can be adjusted.
In this embodiment, wear-resistant sleeves 31 are sleeved at two ends of the rotating shaft 3, and the wear-resistant sleeves 31 are made of plastics. The wear-resistant sleeve 31 is matched with the guide groove 11, and the wear-resistant sleeve 31 is contacted with the valve body 1 during the rotation of the rotating shaft 3.
The closed end of the guide groove 11 is formed with a closed surface 12. The closing surface 12 is located at the side of the guide groove 11. A limit space is formed between the closed surface 12 and the outer peripheral surface of the limiting member 4. The closing surface 12 is preferably a circular arc surface. The arc surface is matched with the peripheral surface of the rotating shaft 3. When the rotating shaft 3 is limited, the peripheral surface of the rotating shaft 3 is in clearance fit with the arc surface. The through hole 13 is a threaded hole, and the stopper 4 is in threaded connection with the through hole 13. The end of the limiting member 4 extending into the guide groove 11 is a cylinder. When the rotating shaft 3 moves to a predetermined position in the guide groove 11, the position of the rotating shaft 3 can be limited by screwing the position-limiting members 4 into the through holes 13.
As shown in fig. 8, the aforementioned driving assembly includes a screw 6, a link 62, and a rotary base 61. A first end of the link 62 is hinged to the blade 2, and the rotating base 61 is hinged to a second end of the link 62. The screw rod 6 is in threaded connection with the valve body 1, and one end of the screw rod 6 is in rotary connection with the rotary seat 61. In this embodiment, a baffle is formed on the rotating base 61, one end of the screw rod 6 penetrates through the baffle, and a pin rod is inserted into two ends of the screw rod 6, which are located on the baffle. The screw 6 can only rotate through the limit of the pin rod. The screw 6 and the rotating seat 61 can be detached by pulling out the pin rod. When the screw 6 is rotated forward and backward, the blade 2 can be driven to rotate around the central axis of the rotating shaft 3 by the linkage of the connecting rod 62.
At least two groups of air volume adjusting units are arranged along the width direction of the air duct. The blades of the air volume adjusting units are mutually matched in a rotating mode to realize the closing and opening of the air duct. The air volume adjusting units are arranged in two groups in this embodiment. And a connecting component is arranged between every two air quantity adjusting units. The coupling assembly includes a first coupling member 5 and second coupling members 51 hinged to both ends of the first coupling member 5. One of the second connecting pieces 51 is fixedly connected with the blades 2 of one of the air volume adjusting units, and the other second connecting piece 51 is fixedly connected with the blades 2 of the other air volume adjusting unit. Through coupling assembling's linkage, when one of them group air regulation unit's blade 2 rotated, can drive the air regulation unit's of all the other groups blade 2 and rotate. The aforementioned link 62 of the drive assembly is hinged to one of the vanes 2.
In this embodiment, a seal 14 is attached to the inner wall of the air duct, and the seal 14 is substantially flush with the end surface of the guide groove 11. When the blade 2 rotates to the closing state of closing the air duct, the two end faces of the blade 2 are matched with the end face of the sealing strip 14 to form a sealing structure, so that the sealing effect of the air duct in the closing state is improved.
When the installation is carried out, the blades 2, the rotating shafts 3 and the connecting components are assembled in advance, and then each rotating shaft 3 is inserted into the guide groove 11 from the open end of the guide groove 11. When each rotating shaft 3 moves to a predetermined position in the guide groove 11, the limiting member 4 is fitted into each through hole 13. The connecting rod 62 and the rotating seat 61 are assembled in advance, the connecting rod 62 is installed on one blade 2, the screw 6 is installed in a threaded hole which is machined in advance in the valve body 1, and finally one end of the screw 6 is installed on the rotating seat 61 through a pin rod. The pin rod is detached from the screw rod 6, the limiting piece 4 is detached, and then the blade 2, the rotating shaft 3 and other components can be integrally detached from the air duct.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by the present specification, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (6)
1. An air volume adjusting valve for a ventilating duct comprises a valve body, an air volume adjusting unit and a driving assembly; the method is characterized in that:
an air duct is arranged inside the valve body; the valve body is provided with a vent communicated with the air duct;
the air quantity adjusting unit comprises guide grooves arranged on two opposite side walls of the air channel, blades arranged in the air channel and a rotating shaft arranged on the blades;
the guide groove extends along the length direction of the air duct and is provided with an open end close to the ventilation opening and a closed end far away from the open end; two ends of the rotating shaft are movably arranged in the guide grooves on the corresponding sides respectively;
a detachable limiting piece is arranged on the side wall of the valve body; one end of the limiting piece extends into the guide groove, and a limiting space is formed between the limiting piece and the closed end of the guide groove;
the rotating shaft moves along the guide groove and is provided with an installation position; in the mounting position, the rotating shaft is limited in the limiting space;
the driving assembly is arranged on the valve body and used for driving the blades to rotate.
2. The air volume adjusting valve for the ventilation duct according to claim 1, characterized in that: the closed end of the guide groove is provided with a closed surface; the closed surface is an arc surface; the arc surface is matched with the peripheral surface of the rotating shaft.
3. The air volume adjusting valve for the ventilation duct according to claim 1, characterized in that: a through hole is formed in the bottom surface of the guide groove; the limiting piece is in threaded connection with the through hole; one end of the limiting part, which extends into the guide groove, is a cylinder.
4. The air volume adjusting valve for the ventilation duct according to claim 1, characterized in that: the driving assembly comprises a screw, a connecting rod and a rotating seat; the first end of the connecting rod is hinged with the blade, and the rotating seat is hinged with the second end of the connecting rod; the screw rod is in threaded connection with the valve body, and one end of the screw rod is rotationally connected with the rotating seat.
5. The air volume adjusting valve for the ventilation duct according to claim 1, characterized in that: the air volume adjusting units are arranged in at least two groups along the width direction of the air duct.
6. The air volume adjusting valve for the ventilation duct according to claim 5, characterized in that: the air quantity adjusting units are provided with connecting components in pairs; the connecting assembly comprises a first connecting piece and a second connecting piece hinged to two ends of the first connecting piece; one of the second connecting pieces is fixedly connected with the blades of one group of air volume adjusting units in the two air volume adjusting units, and the other second connecting piece is fixedly connected with the blades of the other group of air volume adjusting units in the two air volume adjusting units.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121745123.XU CN215980856U (en) | 2021-07-29 | 2021-07-29 | Air volume adjusting valve for ventilating duct |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121745123.XU CN215980856U (en) | 2021-07-29 | 2021-07-29 | Air volume adjusting valve for ventilating duct |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215980856U true CN215980856U (en) | 2022-03-08 |
Family
ID=80515223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121745123.XU Active CN215980856U (en) | 2021-07-29 | 2021-07-29 | Air volume adjusting valve for ventilating duct |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215980856U (en) |
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2021
- 2021-07-29 CN CN202121745123.XU patent/CN215980856U/en active Active
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