CN212928257U - Fan for chemical industry - Google Patents
Fan for chemical industry Download PDFInfo
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- CN212928257U CN212928257U CN202021448439.8U CN202021448439U CN212928257U CN 212928257 U CN212928257 U CN 212928257U CN 202021448439 U CN202021448439 U CN 202021448439U CN 212928257 U CN212928257 U CN 212928257U
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- fixed frame
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- chemical industry
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Abstract
The utility model relates to a fan for chemical industry, including the fan main part, establish the fixed frame on the input or the output of fan main part, a plurality of sealed tripes that are used for sealing fixed frame on the fixed frame are established to the interval, establish the electric jar on fixed frame, its one end is connected on the piston rod of electric jar, the other end order and the rigidity stay cord that sealed tripe is connected and the control end connection control part with the control end of electric jar, wherein, fixed frame is in the open mode when the fan main part starts, fixed frame is in the encapsulated situation when the fan main part is closed. The utility model is used for the laboratory air supply, can effectively separate mosquito and mouse etc. has better sealed effect.
Description
Technical Field
The application relates to the technical field of air supply equipment, in particular to a fan for chemical engineering.
Background
In chemical production, partial process all has the requirement to the leakproofness and the air permeability in workshop, for example, some poisonous and harmful production links need be airtight to reduce the pollution of surrounding environment, perhaps some equipment need be protected, avoids biting and eating of mouse etc. to appear damaging, and as the fan that ventilates and use, how compromise leakproofness and air permeability, become a problem that awaits the opportune moment and solve.
SUMMERY OF THE UTILITY MODEL
The application provides a fan for chemical industry, its leakproofness is better.
The above object of the present application is achieved by the following technical solutions:
a fan for chemical industry includes:
a fan main body;
the fixing frame is arranged on the input end or the output end of the fan main body;
the sealing shutters are arranged on the fixed frame at intervals and used for sealing the fixed frame;
the electric cylinder is arranged on the fixed frame;
one end of the rigid pull rope is connected to a piston rod of the electric cylinder, and the other end of the rigid pull rope is sequentially connected with the sealing shutter; and
the control end of the control part is connected with the control end of the electric cylinder;
the fixed frame is in the open mode when the fan main part starts, and the fixed frame is in the closed mode when the fan main part closes.
Through adopting above-mentioned technical scheme, sealed tripe can be opened automatically when fan main part is started, and self-closing when fan main part is closed can improve the sealing performance of fan main part, can reduce the probability that mosquitoes and mice etc. got into through fan main part.
In a preferred example of the present application: the control part comprises a protection resistor, a light emitting diode connected with the protection resistor in series, a photoresistor matched with the light emitting diode, a controller used for sending out a control signal and a control circuit connected with a signal output end of the controller;
the protection resistor and the light emitting diode are connected in parallel to one input voltage of the fan main body;
the photoresistor is connected to a signal input end of the controller;
and the output end of the control circuit is connected to the control end of the electric cylinder.
In a preferred example of the present application: the sealing shutter comprises a shutter body, connecting rods symmetrically arranged at two ends of the shutter body and pull rods arranged on the connecting rods;
the connecting rod is rotatably connected with the fixed frame;
the pull rod is connected with the rigid pull rope.
In a preferred example of the present application: the hinge body is provided with an elastic sheet for sealing a gap between adjacent hinge bodies.
In a preferred example of the present application: the elastic sheet is adhered to the page body.
In a preferred example of the present application: the device also comprises a fixing screw;
and a screw rod of the fixing screw penetrates through the elastic sheet and is fixed on the page body.
Drawings
Fig. 1 is a schematic view of a usage status provided in an embodiment of the present application.
Fig. 2 is a front view given based on fig. 1.
Fig. 3 is a schematic view of the connection between a sealing louver and a rigid pull rope according to an embodiment of the present application.
Fig. 4 is a schematic diagram of a control principle provided in an embodiment of the present application.
Fig. 5 is a block diagram schematically illustrating a structure of a controller according to an embodiment of the present disclosure.
Fig. 6 is a schematic cross-sectional view of a sheet body according to an embodiment of the present application.
In the figure, 11, a fan main body, 12, a fixing frame, 13, a sealing shutter, 14, an electric cylinder, 15, a rigid pull rope, 6, a control part, 61, a protective resistor, 62, a light emitting diode, 63, a photoresistor, 64, a controller, 65, a control circuit, 131, a leaf body, 132, a connecting rod, 133, a pull rod, 134, an elastic sheet, 135 and a fixing screw are arranged.
Detailed Description
The technical solution of the present application will be described in further detail below with reference to the accompanying drawings.
Referring to fig. 1 and 2, a fan disclosed in the embodiment of the present application is mainly composed of a fan main body 11, a fixing frame 12, a sealing louver 13, an electric cylinder 14, a rigid pull rope 15, a control portion 6, and the like, and the fan is mainly used for air supply and air circulation in a laboratory, wherein the sealing louver 13 is opened during operation to continuously provide flowing air, and the sealing louver 13 is automatically closed when the fan stops to seal the fan main body 11.
Specifically, the fixing frame 12 and the sealing louvers 13 are the core of the sealing function, wherein the fixing frame 12 is installed at the input end or the output end of the fan main body 11 for providing a working environment for the sealing louvers 13, and the sealing louvers 13 are plural in number and installed at intervals on the fixing frame 12 for closing the fixing frame 12.
It should be understood that the sealing louver 13 has two working states, i.e., an open state and a closed state, in which the sealing louver 13 is parallel to the air flowing direction or has an angle smaller than ninety degrees with the air flowing direction, and the air flows through the gap between the adjacent sealing louvers 13; in the closed state, the adjacent sealing louvers 13 are tightly attached together to seal the input end or the output end of the fan main body 11.
It will also be understood that the sealing shutter 13 is rotatably connected to the fixed frame 12, so that it is possible to achieve both the open and closed conditions. The power when the sealed louver 13 rotates is provided by the electric cylinder 14 and the rigid pull rope 15, one end of the rigid pull rope 15 is connected to the piston rod of the electric cylinder 14, the rest part of the rigid pull rope 15 is sequentially connected to the sealed louver 13, when the piston rod of the electric cylinder 14 stretches, the rigid pull rope 15 is pulled to move, at the moment, the rigid pull rope 15 can rotate the sealed louver 13, and the switching between the opening state and the closing state is realized.
It should also be understood that, in the technical solutions shown in the embodiments of the present application, an active sealing manner is adopted, which has a higher practicability than a passive sealing manner, and particularly solves the problem that the passive sealing gradually decreases with the increase of the service time.
It should also be understood that in the process of passive sealing, the sealing louver 13 is sealed by gravity, and the rotating part of the sealing louver 13 gradually deforms along with the use, so that the displacement is not in place, which is also the main reason for the reduction of the sealing performance of the passive sealing, while the active sealing can be performed along with the start and stop of the motor, and the sealing louver 13 can move in place, so that better sealing performance can be provided.
The electric cylinder 14 is controlled by the control part 6, and when the fan main body 11 is started and closed, a signal is sent to the control part 6, and the control part 6 controls the electric cylinder 14 through the signal.
In the using process, referring to fig. 2 and 3, when the worker turns on the power supply of the blower main body 11, the blower main body 11 is in the starting state, and at this time, the control portion 6 receives a starting signal and then sends a working signal to the electric cylinder 14. When the electric cylinder 14 receives the operation signal, the piston rod thereof starts to move, and the sealing louver 13 is pulled to rotate through the rigid pull rope 15, so that the sealing louver 13 is converted from the closed state to the open state.
When the blower main body 11 stops working, the control part 6 receives a close signal, the subsequent content of which is the same as the above content, and the details are not described here, and finally, the piston rod of the electric cylinder 14 moves in the opposite direction, and pulls the sealing louver 13 to rotate through the rigid pull rope 15, so that the sealing louver 13 is changed from the open state to the closed state.
Referring to fig. 4, as a specific embodiment of the fan provided by the application, the control portion 6 mainly includes a protection resistor 61, a light emitting diode 62, a light sensitive resistor 63, a controller 64, a control circuit 65, and the like, specifically, the protection resistor 61 and the light emitting diode 62 are connected in series to form a loop and connected to a path of input voltage of the fan main body 11, and when the fan main body 11 is powered on, the light emitting diode 62 can convert electric energy into light energy.
The light sensitive resistor 63 is connected to a signal input terminal of the controller 64, and when the light emitting diode 62 changes, the resistance value of the light sensitive resistor 63 changes simultaneously, and at this time, the controller 64 receives a signal, for example, the resistance value of the light sensitive resistor 63 decreases when being illuminated, and accordingly, a loop where the light sensitive resistor 63 is located is connected, and the signal input terminal of the controller 64 receives a high level, that is, a so-called signal.
After receiving the signal, the controller 64 sends a control signal to the control circuit 65, the control circuit 65 is connected, when the control circuit 65 is connected, the electric cylinder 14 is in a working state, the piston rod starts to extend or shorten, and the sealing louver 13 is driven to rotate by the rigid pull rope 15.
It should be understood that the control circuit 65 is mainly composed of two parts, a contactor and a commutator, wherein the contactor is responsible for starting and stopping the electric cylinder 14, the commutator is responsible for reversing the electric cylinder 14, the contactor and the commutator are controlled by the contactor, and the contactor is controlled by the controller 64.
It should be understood that referring to fig. 5, the controller 64 mentioned above may be a CPU, microprocessor, ASIC, or one or more integrated circuits for controlling the execution of the programs described above. The controller 11 mainly includes a CPU641, a RAM642, a ROM643, a system bus 644, and the like, wherein the CPU641, the RAM642, and the ROM643 are connected to the system bus 644.
Referring to fig. 2 and 6, as a specific embodiment of the fan provided by the application, the sealing louver 13 mainly comprises two parts, namely, a leaf 131 and a connecting rod 132, wherein two sides of each leaf 131 are fixed with one connecting rod 132, and the connecting rod 132 extends into a hole on the fixed frame 12 and is rotatably connected with the fixed frame 12. The connecting rod 132 is further fixed with a pull rod 133, the pull rod 133 is connected with the rigid pull rope 15, the rigid pull rope 15 can drive the pull rod 133 to swing, and when the pull rod 133 swings, the connecting rod 132 rotates together with the rigid pull rope.
Furthermore, the elastic sheet 134 is added on the page body 131, when the page body 131 is in a closed state, the elastic sheet 134 is positioned between the adjacent page bodies 131, and the gap between the adjacent page bodies 13 can be closed, so that the sealing performance is further improved.
In one possible implementation, the elastic sheet 134 is adhered to the sheet body 131.
In addition, the fixing screws 135 can be used to improve the connection stability of the elastic sheet 134 and the sheet 131, specifically: through holes are added on the elastic sheets 134, threaded holes are added on the page body 131, and the fixing screws 135 are screwed on the page body 131 after passing through the through holes on the elastic sheets 134.
The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (6)
1. The utility model provides a fan for chemical industry which characterized in that includes:
a fan main body (11);
a fixed frame (12) arranged on the input end or the output end of the fan main body (11);
a plurality of sealing louvers (13) which are arranged on the fixed frame (12) at intervals and used for sealing the fixed frame (12);
an electric cylinder (14) arranged on the fixed frame (12);
a rigid pull rope (15), one end of which is connected to the piston rod of the electric cylinder (14), and the other end is connected with the sealing shutter (13) in sequence; and
a control part (6) with a control end connected with the control end of the electric cylinder (14);
wherein the fixed frame (12) is in an open state when the fan main body (11) is started, and the fixed frame (12) is in a closed state when the fan main body (11) is closed.
2. The fan for chemical industry according to claim 1, characterized in that: the control part (6) comprises a protective resistor (61), a light-emitting diode (62) connected with the protective resistor (61) in series, a photoresistor (63) matched with the light-emitting diode (62), a controller (64) used for sending out a control signal and a control circuit (65) connected with a signal output end of the controller (64);
the protection resistor (61) and the light emitting diode (62) are connected in parallel to one input voltage of the fan main body (11);
the photoresistor (63) is connected to a signal input of a controller (64);
the output end of the control circuit (65) is connected to the control end of the electric cylinder (14).
3. The fan for chemical industry according to claim 1, characterized in that: the sealing louver (13) comprises a louver body (131), connecting rods (132) symmetrically arranged at two ends of the louver body (131) and pull rods (133) arranged on the connecting rods (132);
the connecting rod (132) is rotatably connected with the fixed frame (12);
the pull rod (133) is connected with the rigid pull rope (15).
4. The fan for chemical industry according to claim 3, characterized in that: the elastic sheets (134) used for sealing gaps between the adjacent page bodies (131) are arranged on the page bodies (131).
5. The blower for chemical industry according to claim 4, wherein: the elastic sheet (134) is adhered to the sheet body (131).
6. The fan for chemical industry according to claim 5, characterized in that: also includes a set screw (135);
the screw rod of the fixing screw (135) passes through the elastic sheet (134) and is fixed on the page body (131).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021448439.8U CN212928257U (en) | 2020-07-21 | 2020-07-21 | Fan for chemical industry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021448439.8U CN212928257U (en) | 2020-07-21 | 2020-07-21 | Fan for chemical industry |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212928257U true CN212928257U (en) | 2021-04-09 |
Family
ID=75331744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021448439.8U Active CN212928257U (en) | 2020-07-21 | 2020-07-21 | Fan for chemical industry |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212928257U (en) |
-
2020
- 2020-07-21 CN CN202021448439.8U patent/CN212928257U/en active Active
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