CN215633970U - Fan door body opening and closing device - Google Patents
Fan door body opening and closing device Download PDFInfo
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- CN215633970U CN215633970U CN202122256152.6U CN202122256152U CN215633970U CN 215633970 U CN215633970 U CN 215633970U CN 202122256152 U CN202122256152 U CN 202122256152U CN 215633970 U CN215633970 U CN 215633970U
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- contactor
- fan
- door body
- electromagnetic chuck
- heavy hammer
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Abstract
The utility model belongs to the technical field of heat storage ventilation, and particularly relates to a fan door body opening and closing device which comprises an air outlet pipeline, a door body arranged in the air outlet pipeline, a linkage mechanism driving the door body to rotate, and a heavy hammer connected with the linkage mechanism; the weight moves downwards to drive the door body to close, and the weight moves upwards to drive the door body to open; an electromagnetic chuck is arranged above the heavy hammer, and an electromagnet attracted with the electromagnetic chuck is arranged on the heavy hammer; the electromagnetic chuck switches polarity through a polarity exchange circuit. According to the utility model, the electromagnetic chuck is arranged above the heavy hammer, when the fan is started, the electromagnetic chuck and the electromagnet on the heavy hammer are mutually attracted to drive the heavy hammer to swing upwards, and the door body is assisted to be fully opened in place; when the fan stops running, the electromagnetic chuck loses power and repels the electromagnet on the heavy hammer to drive the heavy hammer to swing downwards, the auxiliary door body is closed in place completely, and the success rate of starting and stopping the fan is improved.
Description
Technical Field
The utility model belongs to the technical field of heat storage ventilation, and particularly relates to a fan door body opening and closing device.
Background
Areas such as a turbine room, a fuel room, a lubricating oil room and a load room of the combustion engine are all closed spaces, and in order to prevent equipment damage caused by overhigh temperature of the areas when the combustion engine runs, ventilation fans are arranged in the areas. At present, the fan cannot be started or stopped normally due to the fact that the swing of the fan outlet baffle cannot reach the full-open and full-close position frequently occurs when the fan is started or stopped, the fan can be stopped automatically when the fan cannot detect the full-open signal of the fan outlet baffle, and equipment in a closed space is damaged greatly due to long-term high-temperature conditions.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems in the background art, the utility model provides a fan door body opening and closing device, which influences the attraction and the repulsion of an electromagnetic chuck on an electromagnet through fan starting and stopping signals, further increases the displacement of the up-and-down movement of a heavy hammer, ensures that a door body can be fully opened or fully closed, and achieves the purpose of cooling a combustion engine.
The utility model adopts the following technical scheme:
the utility model provides a fan door body switching device, includes the air-out pipeline, establishes the door body in the air-out pipeline, establishes the weight outside the air-out pipeline and the link gear who is connected respectively with the door body and weight, wherein:
the linkage mechanism is fixedly arranged in the air outlet pipeline and is connected with the heavy hammer through a heavy hammer connecting rod, the lower pendulum of the heavy hammer drives the door body to be closed, and the upper pendulum of the heavy hammer drives the door body to be opened;
an electromagnetic chuck is arranged above the heavy hammer, and an electromagnet attracted with the electromagnetic chuck is arranged on the heavy hammer; the electromagnetic chuck switches polarity through a polarity exchange circuit.
Furthermore, the linkage mechanism comprises a radial rotating shaft, a first gear fixedly arranged on the radial rotating shaft and a second gear meshed with the first gear; the door body is fixed on the radial rotating shaft, one end of the heavy hammer connecting rod is fixedly connected with the heavy hammer, and the other end of the heavy hammer connecting rod is fixedly connected with the second gear.
Furthermore, an infrared locator is arranged between the heavy hammer and the electromagnetic chuck, and an infrared position signal detection point is arranged on the heavy hammer.
Further, the polarity exchange circuit comprises a power supply, a first contactor, a second contactor, a third contactor and a fourth contactor;
the positive pole of the power supply, the first contactor, the electromagnetic chuck, the third contactor and the negative pole of the power supply form a first closed circuit;
the positive electrode of the power supply, the second contactor, the electromagnetic chuck, the fourth contactor and the negative electrode of the power supply form a second closed circuit;
the first contactor and the third contactor receive a fan starting signal;
the second contactor and the fourth contactor receive a fan shutdown signal.
Furthermore, the electromagnet is positioned at the upper part of the heavy hammer, and the N pole of the electromagnet is arranged close to the electromagnetic chuck.
Further, when the first contactor and the third contactor receive a starting signal of the fan, one side of the electromagnetic chuck, which is opposite to the electromagnet, is an S pole;
when the second contactor and the fourth contactor receive a fan outage signal, one side of the electromagnetic chuck, which is opposite to the electromagnet, is an 'N' pole.
In other technical schemes, the electromagnet is positioned at the upper part of the heavy hammer, the S pole of the electromagnet is arranged close to the electromagnetic chuck, and when the first contactor and the third contactor receive a starting signal of the fan, the side, opposite to the electromagnet, of the electromagnetic chuck is the N pole; when the second contactor and the fourth contactor receive a fan outage signal, one side of the electromagnetic chuck, which is opposite to the electromagnet, is an S pole.
Further, the fan starting signal and the fan stopping signal are continuous pulse signals.
Furthermore, the door body is a single-leaf baffle.
Compared with the prior art, the utility model has the beneficial effects that:
according to the utility model, the electromagnetic chuck is arranged above the heavy hammer, when the fan is started, the electromagnetic chuck and the electromagnet on the heavy hammer are mutually attracted to drive the heavy hammer to swing upwards, and the door body is assisted to be fully opened in place; when the fan stops running, the electromagnet loses power and is mutually repelled with the electromagnet on the heavy hammer to drive the heavy hammer to swing downwards, the auxiliary door body is completely closed in place, and the success rate of starting and stopping the fan is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a fan door opening and closing device of the present invention;
FIG. 2 is a circuit diagram of a polarity exchange of the fan door opening and closing device of the present invention;
wherein: 101-fan, 102-air outlet pipeline, 103-first gear, 104-door body, 201-second gear, 202-electromagnet, 203-weight, 204-weight connecting rod, 301-infrared position signal detection point, 302-infrared positioner, 40-polarity exchange circuit, 401-electromagnetic chuck, 402-power supply, 403-first contactor, 404-second contactor, 405-third contactor, 406-fourth contactor, Q-fan starting signal and T-fan stopping signal.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1-2, the present invention provides a fan door opening and closing device, which includes an air outlet duct 11, a door 104 disposed in the air outlet duct 102, a weight 203 disposed outside the air outlet duct 102, and a linkage mechanism respectively connected to the door 104 and the weight 203, wherein: the linkage mechanism is fixedly arranged in the air outlet pipeline 102 and is connected with the heavy hammer 203 through the heavy hammer connecting rod 204, the door body 104 is driven to close by the downward swing of the heavy hammer 203, and the door body 104 is driven to open by the upward swing of the heavy hammer 203; usually, the door 104 at the outlet of the blower will be pushed open by the wind pressure at the outlet when the blower is started, at this time, the weight 203 swings upward, and when the blower is stopped, the door 104 is closed by the gravity of the weight 203.
Specifically, in order to ensure that the door body 104 is fully opened or fully closed, in this embodiment, an electromagnetic chuck 401 is disposed above the weight 203, and the weight 203 is provided with an electromagnet 202 which is attracted to the electromagnetic chuck 401; the electromagnetic chuck 401 switches polarity through the polarity exchange circuit 40; it can be known that the polarity of the electromagnet 202 is "N" or "S" and the polarity of the electromagnetic chuck 401 is also "N" or "S", because the electromagnet 202 is fixedly disposed on the weight 203, the polarity of the side opposite to the electromagnetic chuck 401 is unchanged, and if the electromagnet 202 is "N", the electromagnet 401 and the electromagnet are mutually repelled when the polarity of the electromagnet is "N"; when the electromagnetic chuck 401 is in the "S" pole, the two attract each other, so that the auxiliary weight 203 swings up or down, the door 104 is fully opened or closed through the linkage mechanism, and the success rate of starting and stopping the fan 101 is improved.
Specifically, the linkage mechanism of the present embodiment includes a radial shaft (not shown), a first gear 103, a second gear 201, and a weight link 204; the door body 104 and the first gear 103 are fixedly arranged on the radial rotating shaft, the first gear 103 is embedded in the center of the door body 104, and the first gear 103 rotates to drive the radial rotating shaft and the door body 104 to rotate; one end of the weight link 204 is connected with the weight 203, and the other end is fixedly connected with the second gear 201; the first gear 103 is in meshing transmission with the second gear 201; when the blower 101 is started, the electromagnetic chuck 401 attracts the weight 203 to swing upwards, the weight 203 drives the second gear 201 to rotate through the weight connecting rod 204, and the second gear 201 drives the first gear 103 to rotate, so that the door body 104 is opened; when the blower 101 stops, the electromagnetic chuck 401 repels the weight 203, the weight 203 swings downward under the action of the repulsion force and the gravity, the weight link 204 drives the second gear 201 to rotate, the second gear 201 drives the first gear 103 to rotate, and the door 104 is closed.
Specifically, an infrared locator 302 is disposed between the weight 203 and the electromagnetic chuck 401 in this embodiment, and an infrared position signal detection point 301 is disposed on the weight 203. When the fan 101 is started, the electromagnetic chuck 401 attracts the weight 203 to swing upwards to drive the door body 104 to rotate, when the weight 203 swings upwards to the infrared locator detection 302 to the infrared position signal detection point 301, the door body 104 is judged to be in a fully open state, a fan fully open signal is triggered to be transmitted to the fan 101, and the fan 101 is judged to be normally started after receiving the door body fully open signal; if the weight 203 swings to the full-open position, the infrared locator 302 does not detect the infrared signal, at this time, it is determined that the door 104 is not fully opened, and the fan 101 automatically stops after 20s of delay time when not receiving the fan door full-open signal. It should be noted that, in this embodiment, the fan delay automatic stop is controlled by a PLC provided in the control system.
Specifically, the polarity switching circuit 40 in the present embodiment includes a power source 402, a first contactor 403, a second contactor 404, a third contactor 405, and a fourth contactor 406; the positive pole of the power supply, the first contactor 403, the electromagnetic chuck 401, the third contactor 405 and the negative pole of the power supply form a first closed circuit; a second closed circuit is formed by the positive pole of the power supply, the second contactor 404, the electromagnetic chuck 401, the fourth contactor 406 and the negative pole of the power supply; the first contactor 403 and the third contactor 405 receive a fan start signal Q; the second contactor 404 and the fourth contactor 406 receive the fan shutdown signal T.
In one embodiment, the electromagnet 202 is located at the upper part of the weight 203, the "N" pole of the electromagnet 202 is arranged close to the electromagnetic chuck 401, after the blower is started, the blower starting signal Q is transmitted to the first contactor 403 and the third contactor 405, at this time, the first contactor 403 and the third contactor 405 are switched on, the second contactor 404 and the fourth contactor 406 are switched off, the first closed circuit is switched on, the surface of the electromagnetic chuck 401 facing the electromagnet 202 is the "S" pole, which attracts the electromagnet 202 to drive the weight 203 to swing upwards, so that the door 104 is rotated to the full open position, and the blower is ensured to be normally started; when the fan stops, a fan stop signal T is transmitted to the second contactor 404 and the fourth contactor 406, the first contactor 403 and the third contactor 405 are switched off, the second contactor 404 and the fourth contactor 406 are switched on, the direction of current entering the electromagnetic chuck 401 is changed, the polarity of the electromagnetic chuck 401 is changed, one surface of the electromagnetic chuck 401, facing the electromagnet 202, is an 'N' pole and is repelled with the electromagnet 202, a downward boosting force is provided for the hammer 203, and the door body 104 is enabled to rotate to a fully closed position.
In other embodiments, the electromagnet 202 is located at the upper part of the weight 203, the "S" pole of the electromagnet 202 is arranged close to the electromagnetic chuck 401, after the blower is started, the blower start signal Q is transmitted to the first contactor 403 and the third contactor 405, at this time, the first contactor 403 and the third contactor 405 are switched on, the second contactor 404 and the fourth contactor 406 are switched off, the first closed circuit is switched on, the side of the electromagnetic chuck 401 facing the electromagnet 202 is the "N" pole, which attracts the electromagnet 202 to drive the weight 203 to swing upwards, so that the door 104 is turned to the full open position, and the blower 101 is ensured to be normally started; when the fan stops, a fan stop signal T is transmitted to the second contactor 404 and the fourth contactor 406, the first contactor 403 and the third contactor 405 are switched off, the second contactor 404 and the fourth contactor 406 are switched on, the direction of current entering the electromagnetic chuck 401 is changed, the polarity of the electromagnetic chuck 401 is changed, one surface, facing the electromagnet 202, of the electromagnetic chuck 401 is an S pole and is repelled with the electromagnet 202, a downward boosting force is provided for the hammer 203, and the door body is enabled to rotate to a fully closed position.
Specifically, the fan start signal Q and the fan stop signal T in this embodiment are continuous pulse signals that can be directly led out from the combustion engine control system, the fan is started after a fan start-stop instruction is sent from the combustion engine control computer, and the started state is fed back to the computer.
Specifically, the door 104 in this embodiment is a single-leaf type shutter.
According to the utility model, the electromagnetic chuck 401 is arranged above the heavy hammer 203, when the fan is started, the electromagnetic chuck 401 and the electromagnet 202 on the heavy hammer 203 attract each other to drive the heavy hammer 202 to swing upwards, so that the auxiliary door body 104 is fully opened in place; when the fan stops running, the electromagnetic chuck 401 loses power and repels the electromagnet 202 on the heavy hammer 203, so that the heavy hammer 203 is driven to swing downwards, the auxiliary door body 104 is closed in place, and the success rate of starting and stopping the fan is greatly improved.
The present invention has been further described with reference to specific embodiments, but it should be understood that the detailed description should not be construed as limiting the spirit and scope of the present invention, and various modifications made to the above-described embodiments by those of ordinary skill in the art after reading this specification are within the scope of the present invention.
Claims (10)
1. The utility model provides a fan door body switching device, its characterized in that includes the air-out pipeline, establishes door body in the air-out pipeline, establish outside the air-out pipeline the weight and with the door body with the link gear that the weight is connected respectively, wherein:
the linkage mechanism is fixedly arranged in the air outlet pipeline and is connected with the heavy hammer through a heavy hammer connecting rod, the lower pendulum of the heavy hammer drives the door body to be closed, and the upper pendulum of the heavy hammer drives the door body to be opened;
an electromagnetic chuck is arranged above the heavy hammer, and an electromagnet attracted with the electromagnetic chuck is arranged on the heavy hammer; the electromagnetic chuck switches polarity through a polarity exchange circuit.
2. The fan door body opening and closing device according to claim 1, wherein the linkage mechanism comprises a radial rotating shaft, a first gear fixedly arranged on the radial rotating shaft, and a second gear meshed with the first gear; the door body is fixed on the radial rotating shaft, one end of the heavy hammer connecting rod is fixedly connected with the heavy hammer, and the other end of the heavy hammer connecting rod is fixedly connected with the second gear.
3. The fan door body opening and closing device according to claim 1, wherein an infrared locator is arranged between the heavy hammer and the electromagnetic chuck, and an infrared position signal detection point is arranged on the heavy hammer.
4. The fan door body switching device according to claim 1, wherein the polarity exchange circuit comprises a power supply, a first contactor, a second contactor, a third contactor and a fourth contactor;
the power supply positive electrode, the first contactor, the electromagnetic chuck, the third contactor and the power supply negative electrode form a first closed circuit;
the power supply positive electrode, the second contactor, the electromagnetic chuck, the fourth contactor and the power supply negative electrode form a second closed circuit;
the first contactor and the third contactor receive a fan starting signal;
and the second contactor and the fourth contactor receive a fan shutdown signal.
5. The blower door opening and closing device according to claim 4, wherein the electromagnet is located at an upper portion of the weight, and an "N" pole of the electromagnet is disposed close to the electromagnetic chuck.
6. The fan door body switching device according to claim 5, wherein when the first contactor and the third contactor receive a fan starting signal, the side of the electromagnetic chuck opposite to the electromagnet is an "S" pole;
when the second contactor and the fourth contactor receive a fan outage signal, one side of the electromagnetic chuck opposite to the electromagnet is an N pole.
7. The blower door opening and closing device according to claim 4, wherein the electromagnet is located at an upper portion of the weight, and the "S" pole of the electromagnet is disposed close to the electromagnetic chuck.
8. The fan door body switching device according to claim 5, wherein when the first contactor and the third contactor receive a fan starting signal, the side of the electromagnetic chuck opposite to the electromagnet is an "N" pole;
when the second contactor and the fourth contactor receive a fan outage signal, one side of the electromagnetic chuck opposite to the electromagnet is an S pole.
9. The fan door body opening and closing device according to claim 4, wherein the fan start signal and the fan stop signal are continuous pulse signals.
10. The fan door opening and closing device according to claim 1, wherein the door is a single-leaf baffle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122256152.6U CN215633970U (en) | 2021-09-16 | 2021-09-16 | Fan door body opening and closing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122256152.6U CN215633970U (en) | 2021-09-16 | 2021-09-16 | Fan door body opening and closing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215633970U true CN215633970U (en) | 2022-01-25 |
Family
ID=79917366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122256152.6U Active CN215633970U (en) | 2021-09-16 | 2021-09-16 | Fan door body opening and closing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215633970U (en) |
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2021
- 2021-09-16 CN CN202122256152.6U patent/CN215633970U/en active Active
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