CN221374484U - Multi-connecting rod proportional valve - Google Patents
Multi-connecting rod proportional valve Download PDFInfo
- Publication number
- CN221374484U CN221374484U CN202323435005.0U CN202323435005U CN221374484U CN 221374484 U CN221374484 U CN 221374484U CN 202323435005 U CN202323435005 U CN 202323435005U CN 221374484 U CN221374484 U CN 221374484U
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- connecting rod
- rotating shaft
- assembly
- fixedly connected
- valve
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- 238000009434 installation Methods 0.000 claims abstract description 9
- 230000007306 turnover Effects 0.000 claims abstract description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 4
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
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Abstract
The utility model provides a multi-connecting rod proportional valve which comprises a pneumatic actuator, a valve pipe, a turning plate, a connecting rod assembly and a turning assembly, wherein the pneumatic actuator is arranged on the valve pipe; the pneumatic actuator is connected with the overturning assembly, the overturning assembly and the connecting rod assembly are fixedly connected with the valve pipe, the turning plate is fixedly connected with the connecting rod assembly, and the connecting rod assembly is connected with the overturning assembly; the turnover assembly comprises a bearing seat, a mounting frame and a rotating shaft, the rotating shaft penetrates through the valve pipe, the rotating shaft is rotationally connected with the connecting rod assembly, two ends of the rotating shaft are respectively rotationally connected with the bearing seat, and the bearing seat is fixedly connected with the outer wall of the valve pipe; the installation frame is fixedly connected with the bearing seat, the pneumatic actuator is fixedly connected with the installation frame, and the rotating shaft sequentially penetrates through the bearing seat and the installation frame to be connected with the output end of the pneumatic actuator for driving the rotating shaft to rotate. The utility model has the beneficial effects that: the application range of the valve is enlarged, and the moment required for opening and closing the valve is reduced.
Description
Technical Field
The utility model belongs to the field of waste gas valve equipment, and particularly relates to a multi-connecting-rod proportional valve.
Background
The exhaust gas proportional valve is an important mechanical device and is widely applied to control and manage the exhaust gas flow in industry and automobile emission. The valve is capable of regulating the amount of exhaust gas flowing through the interior thereof, ensuring that the exhaust system operates in an optimal state, thereby optimizing emission control and reducing environmental pollution. The design and function of the exhaust gas proportional valve are extremely important in the fields of environmental protection and industrial control. Existing exhaust proportioning valves typically employ a single or simple mechanical structure such as a spring-loaded, belt-driven or electric control system. These structural designs are simple and easy to install and maintain, but at the same time limit their application range and adjustment accuracy. In certain demanding applications, such as where very precise flow control is required or when operating under extreme temperature and pressure conditions, resulting in excessive torque loading of the valve when closed, these conventional valves may not be satisfactory.
In view of this, the present utility model aims to provide a multi-link proportional valve, so as to increase the application range of the valve and reduce the moment required for opening and closing the valve.
In order to achieve the above purpose, the technical scheme of the utility model is realized as follows:
A multi-link proportional valve.
Further, the device comprises a pneumatic actuator, a valve tube, a turning plate, a connecting rod assembly and a turning assembly; the pneumatic actuator is connected with the overturning assembly, the overturning assembly and the connecting rod assembly are fixedly connected with the valve pipe, the turning plate is fixedly connected with the connecting rod assembly, and the connecting rod assembly is connected with the overturning assembly; the turnover assembly comprises a bearing seat, a mounting frame and a rotating shaft, the rotating shaft penetrates through the valve pipe, the rotating shaft is rotationally connected with the connecting rod assembly, two ends of the rotating shaft are respectively rotationally connected with the bearing seat, and the bearing seat is fixedly connected with the outer wall of the valve pipe; the installation frame is fixedly connected with the bearing seat, the pneumatic actuator is fixedly connected with the installation frame, and the rotating shaft sequentially penetrates through the bearing seat and the installation frame to be connected with the output end of the pneumatic actuator for driving the rotating shaft to rotate.
Further, the connecting rod assembly comprises a fixed connecting rod, a female connecting rod and a child connecting rod, wherein the fixed connecting rod is fixedly connected with the inner wall of the valve pipe, the fixed connecting rod is rotationally connected with the female connecting rod, and one end of the child connecting rod is fixedly connected with the rotating shaft and positioned on two sides of the female connecting rod.
Further, the first pin shaft and the second pin shaft of the connecting rod assembly are in pin joint with the fixed connecting rod and the female connecting rod, and the rotating shaft of the fixed connecting rod is coaxial with the rotating shaft of the female connecting rod; the second pin shaft is in pin joint with one end of the female connecting rod, which is far away from the rotating shaft.
Further, the connecting rod assembly further comprises a third pin shaft and a connecting rod, the third pin shaft is in pin joint with the connecting rod and the sub-connecting rod, and the rotating shaft of the connecting rod is coaxial with the rotating shaft of the sub-connecting rod; one end of the connecting rod is fixedly connected with the turning plate, and the other end of the connecting rod is in pin joint with the second pin shaft.
Further, the connecting rod is located at two ends of the second pin shaft.
Further, the diameter of the turning plate is the same as the diameter of the inner wall of the valve pipe.
Further, the outer wall of the valve tube is provided with a plurality of reinforcing ribs, and two ends of the valve tube are provided with a plurality of mounting holes.
Further, the bearing seat is fixedly connected with the valve pipe through a bolt, and the mounting frame is fixedly connected with the bearing seat and the pneumatic actuator through a bolt.
Compared with the prior art, the multi-connecting-rod proportional valve has the following beneficial effects:
(1) According to the multi-connecting-rod proportional valve, the moment of turning the turning plate is distributed to one part of the fixed connecting rod, and the other part of the turning plate is distributed to the rotating shaft, so that the pneumatic actuator can close or open the valve with smaller moment;
(2) According to the multi-connecting-rod proportional valve, the first pin shaft is in pin joint with the fixed connecting rod and the female connecting rod, the rotating shaft of the fixed connecting rod is coaxial with the rotating shaft of the female connecting rod, the second pin shaft is in pin joint with one end, far away from the rotating shaft, of the female connecting rod, the third pin shaft is in pin joint with the connecting rod and the sub connecting rod, the rotating shaft of the connecting rod is coaxial with the rotating shaft of the sub connecting rod, one end of the connecting rod is fixedly connected with the turning plate, and the other end of the connecting rod is in pin joint with the second pin shaft, so that the adjusting performance and the precise adjusting capability of the multi-connecting-rod proportional valve are improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:
FIG. 1 is an isometric view of a proportional valve according to an embodiment of the present utility model;
FIG. 2 is an isometric view of a proportional valve according to an embodiment of the present utility model;
FIG. 3 is a schematic top cross-sectional view of a proportional valve according to an embodiment of the present utility model;
FIG. 4 is a schematic partial cross-sectional view of a proportional valve according to an embodiment of the present utility model;
FIG. 5 is a schematic partial cross-sectional view of a proportional valve according to an embodiment of the present utility model;
FIG. 6 is a schematic side view of a proportional valve according to an embodiment of the present utility model;
FIG. 7 is a schematic side view of a proportional valve according to an embodiment of the present utility model;
fig. 8 is a schematic side view of a proportional valve according to an embodiment of the present utility model.
Reference numerals illustrate:
1-a pneumatic actuator; 2-valve tube; 3-turning plates; 4-a connecting rod assembly; 401-fixed link; 402-female connecting rod; 403-sub-links; 404-a first pin; 405-a second pin; 406-a third pin; 407-connecting rod; 5-turning over the assembly; 501-bearing seats; 502-mounting rack; 503-spindle.
Detailed Description
It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.
The utility model will be described in detail below with reference to the drawings in connection with embodiments.
The design of the multiple connecting rods of the technical scheme provides higher adjustment flexibility and precision, and can realize smaller moment overturning effect, so that the valve is better adapted to complex and severe working conditions, the application range of the valve is enlarged, and the adjustment performance and reliability of the valve are improved, especially in industrial application requiring fine control.
A multi-link proportional valve, as shown in figures 1-5, comprises a pneumatic actuator 1, a valve tube 2, a turning plate 3, a link assembly 4 and a turning assembly 5. The pneumatic actuator 1 is connected with the overturning assembly 5, the overturning assembly 5 and the connecting rod assembly 4 are fixedly connected with the valve tube 2, the overturning plate 3 is fixedly connected with the connecting rod assembly 4, the connecting rod assembly 4 is connected with the overturning assembly 5, and the pneumatic actuator 1 drives the overturning assembly 5 to drive the connecting rod assembly 4 to rotate. Specifically, the turnover assembly 5 comprises a bearing seat 501, a mounting frame 502 and a rotating shaft 503, the rotating shaft 503 penetrates through the valve tube 2, the rotating shaft 503 is rotationally connected with the connecting rod assembly 4, two ends of the rotating shaft 503 are respectively rotationally connected with the bearing seat 501, and the bearing seat 501 is fixedly connected with the outer wall of the valve tube 2. The mounting frame 502 is fixedly connected with the bearing seat 501, the pneumatic actuator 1 is fixedly connected with the mounting frame 502, the rotating shaft 503 sequentially penetrates through the bearing seat 501 and the mounting frame 502 to be connected with the output end of the pneumatic actuator 1 and used for driving the rotating shaft 503 to rotate, and in the embodiment, the valve tube comprises at least two bearing seats 501, and the bearing seats 501 are used for connecting the rotating shaft 503 with the valve tube 2 and enabling the rotating shaft 503 to relatively rotate.
As shown in fig. 2, the link assembly 4 includes a fixed link 401, a female link 402, a sub link 403, a first pin 404, a second pin 405, a third pin 406, and a connecting rod 407, where the fixed link 401 is fixedly connected to the inner wall of the valve tube 2, the fixed link 401 is rotatably connected to the female link 402, and one end of the sub link 403 is fixedly connected to the rotating shaft 503 and located on two sides of the female link 402. A first pin 404 and a second pin 405 of the connecting rod assembly 4, wherein the first pin 404 is in pin joint with the fixed connecting rod 401 and the female connecting rod 402, and the rotating shaft of the fixed connecting rod 401 is coaxial with the rotating shaft of the female connecting rod 402; the second pin 405 is pinned to an end of the female link 402 remote from the pivot 503. The connecting rod assembly 4 further comprises a third pin shaft 406 and a connecting rod 407, wherein the third pin shaft 406 is in pin joint with the connecting rod 407 and the sub-connecting rod 403, and the rotating shaft of the connecting rod 407 is coaxial with the rotating shaft of the sub-connecting rod 403; one end of the connecting rod 407 is fixedly connected with the turning plate 3, and the other end of the connecting rod 407 is in pin joint with the second pin shaft 405. The connecting rods 407 are located at both ends of the second pin 405.
Alternatively, as shown in fig. 3, the flap 3 has the same diameter as the inner wall of the valve tube 2. The outer wall of the valve tube 2 is provided with a plurality of reinforcing ribs, and two ends of the valve tube 2 are provided with a plurality of mounting holes. The bearing seat 501 is fixedly connected with the valve pipe 2 through bolts, and the mounting frame 502 is fixedly connected with the bearing seat 501 and the pneumatic actuator 1 through bolts.
The working principle of the proportional valve is as follows: as shown in fig. 6-8, the pneumatic actuator 1 drives the rotating shaft 503 to rotate, the rotating shaft 503 drives the sub-link 403 to rotate under the limitation of the fixed link 401, so that the turning plate 3 rotates to realize proportional opening or closing of the proportional valve, meanwhile, under the limitation of the second pin 405 and the third pin 406, the female link 402 starts to rotate around the first pin 404, the moment of the turning plate 3 rotation is distributed to one part of the fixed link 401, the other part is distributed to the rotating shaft 503, and the pneumatic actuator 1 can close or open the valve with smaller moment similar to the pulley principle.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model, and are intended to be included within the scope of the appended claims and description.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.
Claims (8)
1. A multi-connecting rod proportional valve is characterized in that: comprises a pneumatic actuator, a valve tube, a turning plate, a connecting rod assembly and a turning assembly;
The pneumatic actuator is connected with the overturning assembly, the overturning assembly and the connecting rod assembly are fixedly connected with the valve pipe, the turning plate is fixedly connected with the connecting rod assembly, and the connecting rod assembly is connected with the overturning assembly;
the turnover assembly comprises a bearing seat, a mounting frame and a rotating shaft, the rotating shaft penetrates through the valve pipe, the rotating shaft is rotationally connected with the connecting rod assembly, two ends of the rotating shaft are respectively rotationally connected with the bearing seat, and the bearing seat is fixedly connected with the outer wall of the valve pipe; the installation frame is fixedly connected with the bearing seat, the pneumatic actuator is fixedly connected with the installation frame, and the rotating shaft sequentially penetrates through the bearing seat and the installation frame to be connected with the output end of the pneumatic actuator for driving the rotating shaft to rotate.
2. The multi-link proportional valve of claim 1, wherein: the connecting rod assembly comprises a fixed connecting rod, a female connecting rod and a child connecting rod, wherein the fixed connecting rod is fixedly connected with the inner wall of the valve pipe, the fixed connecting rod is rotationally connected with the female connecting rod, and one end of the child connecting rod is fixedly connected with the rotating shaft and positioned on two sides of the female connecting rod.
3. The multi-link proportional valve of claim 2, wherein: the first pin shaft and the second pin shaft of the connecting rod assembly are in pin joint with the fixed connecting rod and the female connecting rod, and the rotating shaft of the fixed connecting rod is coaxial with the rotating shaft of the female connecting rod;
the second pin shaft is in pin joint with one end of the female connecting rod, which is far away from the rotating shaft.
4. A multi-link proportional valve as claimed in claim 3, wherein: the connecting rod assembly further comprises a third pin shaft and a connecting rod, the third pin shaft is in pin joint with the connecting rod and the sub-connecting rod, and the rotating shaft of the connecting rod is coaxial with the rotating shaft of the sub-connecting rod;
One end of the connecting rod is fixedly connected with the turning plate, and the other end of the connecting rod is in pin joint with the second pin shaft.
5. The multi-link proportional valve of claim 4, wherein: the connecting rod is located the both ends of second round pin axle.
6. The multi-link proportional valve of claim 1, wherein: the diameter of the turning plate is the same as the diameter of the inner wall of the valve pipe.
7. The multi-link proportional valve of claim 1, wherein: the outer wall of the valve tube is provided with a plurality of reinforcing ribs, and a plurality of mounting holes are formed in two ends of the valve tube.
8. The multi-link proportional valve of claim 1, wherein: the bearing seat is fixedly connected with the valve pipe through a bolt, and the mounting frame is fixedly connected with the bearing seat and the pneumatic actuator through a bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323435005.0U CN221374484U (en) | 2023-12-15 | 2023-12-15 | Multi-connecting rod proportional valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323435005.0U CN221374484U (en) | 2023-12-15 | 2023-12-15 | Multi-connecting rod proportional valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221374484U true CN221374484U (en) | 2024-07-19 |
Family
ID=91860117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323435005.0U Active CN221374484U (en) | 2023-12-15 | 2023-12-15 | Multi-connecting rod proportional valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221374484U (en) |
-
2023
- 2023-12-15 CN CN202323435005.0U patent/CN221374484U/en active Active
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