CN214327991U - Air return box structure for pre-oxidation furnace - Google Patents
Air return box structure for pre-oxidation furnace Download PDFInfo
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- CN214327991U CN214327991U CN202023283797.0U CN202023283797U CN214327991U CN 214327991 U CN214327991 U CN 214327991U CN 202023283797 U CN202023283797 U CN 202023283797U CN 214327991 U CN214327991 U CN 214327991U
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- return box
- filter screen
- groove
- installation
- rotating shaft
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Abstract
The utility model discloses a return air box structure for a pre-oxidation furnace, which comprises a return air box, wherein one side inside the return air box is fixedly provided with a mounting sleeve, a rotating shaft is movably inserted in the return air box, one end of the rotating shaft is fixedly provided with a fan blade, one end of the rotating shaft is fixedly provided with a rotating rod, one side of the rotating shaft is fixedly provided with a cleaning strip, one end inside the return air box is provided with a filter screen, the lower end of the return air box is provided with a groove, the mounting plate is arranged in the return air box, the upper end of the mounting plate is fixedly connected with the lower end of the filter screen, both sides of the surface of the mounting plate are provided with mounting holes, when wind power inside the return air box flows back, the fan blade is driven by wind power to rotate, the rotating shaft is driven by the rotating rod to rotate the cleaning strip, the cleaning strip cleans the inner wall of the filter screen, impurities fall into the collecting groove, and therefore the filter screen is prevented from being blocked, and the wind power circulation is prevented from being influenced.
Description
Technical Field
The utility model relates to a pre-oxidation furnace technical field specifically is a return air case structure for pre-oxidation furnace.
Background
The preoxidation refers to a preoxidation process which is required to be carried out on carbon fiber precursors before carbonization, in the case of pitch-based stabilization, polyacrylonitrile precursor is taken as an example, the carbon fiber precursors are subjected to a series of complex reactions such as cyclization, crosslinking, dehydrogenation, oxidation and the like of molecular chains in air at 200-400 ℃ under proper tension, so that the carbon fiber precursors are converted into a pyridine ring trapezoidal structure which is thermally stable and has a semiconductor resistance value, and the heat resistance, the flame resistance, the conductivity and the like of the carbon fiber precursors are improved. The equipment is mainly continuous, a small amount of batch furnaces are also arranged, and the box-type pre-oxidation furnace is a scientific instrument used in the field of material science.
The air return box is an important component of the pre-oxidation furnace, air needs to be filtered in the air return process, the filter screen is easy to block due to long-term use, a large amount of sundries are adhered to the filter screen and difficult to clean, the air return effect is influenced, and therefore the air return box structure for the pre-oxidation furnace is provided.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a return air case structure for pre-oxidation furnace to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a return air box structure for a pre-oxidation furnace comprises a return air box, wherein a mounting sleeve is fixedly mounted on one side inside the return air box, a rotating shaft is movably inserted in the return air box, a fan blade is fixedly mounted at one end of the rotating shaft, a rotating rod is fixedly mounted at one end of the rotating shaft, a cleaning strip is fixedly mounted on one side of the rotating shaft, a filter screen is mounted at one end inside the return air box, a groove is formed in the lower end of the return air box, a mounting plate is mounted in the return air box, the upper end of the mounting plate is fixedly connected with the lower end of the filter screen, mounting holes are formed in the two sides of the surface of the mounting plate, a gear is movably mounted on one side of the mounting plate, a mounting groove is formed in one side of the mounting plate, a moving block is movably mounted at one end of the moving block, a clamping spring is fixedly mounted at one end of the moving block, and one end of the clamping spring is fixedly connected with one side of the mounting groove, the movable block is characterized in that a movable rod is fixedly mounted at one end of the movable block, an arc-shaped fixture block is fixedly mounted at one end of the movable rod, one side of the arc-shaped fixture block is clamped with the gear, an insertion rod penetrates through the mounting hole, the upper end of the insertion rod is fixedly connected with one side of the inner wall of the groove, a rack is arranged on one side of the insertion rod, and the rack is clamped with the gear.
Preferably, the air return box is fixedly provided with an installation frame in the interior, and the installation frame is provided with a filter screen in the interior.
Preferably, the filter screen is frame-shaped, and one side of the inner wall of the filter screen is attached to one side of the cleaning strip.
Preferably, the upper end of the mounting plate is provided with a collecting groove, and the collecting groove is located at the lower end inside the filter screen.
Preferably, the two sides of the surface of the mounting sleeve are fixedly provided with mounting rods, and the mounting rods are fixedly connected with the two sides of the inner wall of the air return box.
Preferably, one side of the surface of the mounting plate is provided with a hidden groove, the middle position inside the mounting plate is provided with a sliding groove, a push block is movably mounted inside the sliding groove, and one end of the push block is fixedly connected with one side of the moving block.
Preferably, a connecting groove is formed in one side of the inserting rod, and a rack is fixedly mounted on one side of the inner wall of the connecting groove.
Compared with the prior art, the beneficial effects of the utility model are that:
1. through the setting of rotation axis for the integrated device has fine effect of cleaning, when the inside wind-force of return-air case flows back, wind-force drives the flabellum and rotates, and the flabellum drives the rotation axis and rotates in the inside of installation cover, and the rotation axis drives through the rotary rod and cleans the strip and rotate, cleans the inner wall of filter screen, makes impurity fall into the inside of collecting tank, avoids the filter screen to block up, influences the circulation of wind-force.
2. Through the setting of inserted bar, make the integrated device have fine installation effect, the user inserts the filter screen inside the installing frame of return-air case, the inside of recess is inserted to the mounting panel, the movable block moves in the inside of mounting groove, the movable block drives the arc cardboard through the movable rod and moves, make the arc cardboard break away from with the ring gear, the inside of mounting hole is inserted to the inserted bar, rack and gear engagement, the insertion of the inserted bar of being convenient for, when the mounting panel pastes with the inner wall of recess, the movable block resumes under the effect of the solid spring of card, make arc fixture block and gear looks joint, be convenient for block solid to the gear, the card of wheel and rack is solid, thereby be convenient for the mounting panel to fix in the inside of recess, be convenient for the installation of filter screen.
3. Through the setting of ejector pad, the dismantlement of the filter screen of being convenient for, the user promotes the ejector pad, and the ejector pad drives the movable block and removes in the inside of mounting groove for arc fixture block breaks away from with the gear mutually, makes gear revolve, makes the gear break away from along the rack mutually, and the mounting panel of being convenient for is taken out from the inside of recess, the dismantlement of the filter screen of being convenient for.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of the structure A in FIG. 1 according to the present invention;
FIG. 3 is a schematic view of the structure of the filter net of the present invention;
in the figure: 1. an air return box; 2. installing a sleeve; 3. a fan blade; 4. mounting a rod; 5. a rotating shaft; 6. rotating the rod; 7. cleaning strips; 8. a filter screen; 9. installing a frame; 10. a movable rod; 11. mounting a plate; 12. a gear; 13. inserting a rod; 14. a rack; 15. a groove; 16. an arc-shaped fixture block; 17. a moving block; 18. mounting grooves; 19. clamping and fixing the spring; 20. a push block; 21. and (7) installing holes.
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 embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the technical scheme in the utility model, all other embodiments that ordinary skilled person in the art obtained under the prerequisite of not making the creative work all belong to the scope of the utility model protection.
Referring to fig. 1 to 3, the present invention provides a technical solution: a return air box structure for a pre-oxidation furnace comprises a return air box 1, wherein a mounting sleeve 2 is fixedly mounted on one side inside the return air box 1, a rotating shaft 5 is movably inserted in the return air box, a fan blade 3 is fixedly mounted at one end of the rotating shaft 5, a rotating rod 6 is fixedly mounted at one end of the rotating shaft 5, a cleaning strip 7 is fixedly mounted at one side of the rotating shaft, a filter screen 8 is mounted at one end inside the return air box 1, a groove 15 is formed in the lower end of the return air box 1, a mounting plate 11 is mounted in the return air box, the upper end of the mounting plate 11 is fixedly connected with the lower end of the filter screen 8, mounting holes 21 are formed in both sides of the surface of the mounting plate 11, a gear 12 is movably mounted at one side of the mounting plate 11, a mounting groove 18 is formed in one end of the mounting plate 11, a moving block 17 is movably mounted at one end of the moving block 17, a clamping spring 19 is fixedly mounted at one end of the clamping spring 19, and is fixedly connected with one side of the mounting groove 18, one end of the moving block 17 is fixedly provided with a moving rod 10, one end of the moving rod 10 is fixedly provided with an arc-shaped fixture block 16, one side of the arc-shaped fixture block 16 is clamped with the gear 12, the inside of the mounting hole 21 is inserted with an insertion rod 13, the upper end of the insertion rod is fixedly connected with one side of the inner wall of the groove 15, one side of the insertion rod 13 is provided with a rack 14, the rack 14 is clamped with the gear 12, when the wind power inside the air return box 1 flows back, the wind power drives the fan blade 3 to rotate, the fan blade 3 drives the rotating shaft 5 to rotate inside the mounting sleeve 2, the rotating shaft 5 drives the cleaning strip 7 to rotate through the rotating rod 6, the cleaning strip 7 cleans the inner wall of the filter screen 8, so that impurities fall into the inside the collecting groove, the filter screen 8 is prevented from being blocked, the circulation of the wind power is influenced, a user inserts the filter screen 8 into the mounting frame 9 of the air return box 1, and the mounting plate 11 is inserted into the groove 15, the moving block 17 moves in the mounting groove 18, the moving block 17 drives the arc-shaped clamping plate to move through the movable rod 10, the arc-shaped clamping plate is separated from the toothed ring, the inserted link 13 is inserted into the mounting hole 21, the rack 14 is meshed with the gear 12, the inserted link 13 is convenient to insert, when the mounting plate 11 is attached to the inner wall of the groove 15, the moving block 17 restores to the original position under the action of the clamping spring 19, the arc-shaped clamping block 16 is connected with the gear 12 in a clamping mode, the gear 12 is convenient to clamp and fix, the gear 12 is fixed with the rack 14 in a clamping mode, the mounting plate 11 is convenient to fix in the groove 15, and the filter screen 8 is convenient to mount.
Further, the inside fixed mounting of return-air case 1 has installing frame 9, and the internally mounted of installing frame 9 has filter screen 8, and filter screen 8 is the frame form, and one side of the 8 inner walls of filter screen and one side of cleaning strip 7 are laminated mutually, are convenient for install and clear up filter screen 8.
Further, a collecting groove is formed in the upper end of the mounting plate 11 and located at the lower end inside the filter screen 8, and therefore impurities can be collected conveniently.
Furthermore, the installation rod 4 is fixedly installed on two sides of the surface of the installation sleeve 2, and the installation rod 4 is fixedly connected with two sides of the inner wall of the air return box 1, so that the installation sleeve 2 is supported conveniently.
Further, one side on the surface of the mounting plate 11 is provided with a hidden groove, a sliding groove is formed in the middle of the mounting plate, a pushing block 20 is movably mounted inside the sliding groove, one end of the pushing block is fixedly connected with one side of the moving block 17, a user pushes the pushing block 20, the pushing block 20 drives the moving block 17 to move inside the mounting groove 18, the arc-shaped clamping block 16 is separated from the gear 12, the gear 12 rotates, the gear 12 can be separated from the rack 14, the mounting plate 11 is convenient to take out from the inside of the groove 15, and the filter screen 8 is convenient to detach.
Furthermore, a connecting groove is formed in one side of the inserting rod 13, and a rack 14 is fixedly mounted on one side of the inner wall of the connecting groove, so that meshing between the gear 12 and the rack 14 is enhanced, and dislocation of the gear 12 is avoided.
The working principle is as follows: when wind power in the air return box 1 flows back, the wind power drives the fan blades 3 to rotate, the fan blades 3 drive the rotating shaft 5 to rotate in the installation sleeve 2, the rotating shaft 5 drives the cleaning strips 7 to rotate through the rotating rods 6, the cleaning strips 7 clean the inner wall of the filter screen 8, so that impurities fall into the collection groove to avoid the filter screen 8 from being blocked and influence the circulation of the wind power, a user inserts the filter screen 8 into the installation frame 9 of the air return box 1, the installation plate 11 is inserted into the groove 15, the moving block 17 moves in the installation groove 18, the moving block 17 drives the arc-shaped clamping plate to move through the movable rod 10, so that the arc-shaped clamping plate is separated from the gear ring, the inserted rod 13 is inserted into the installation hole 21, the rack 14 is meshed with the gear 12 to facilitate the insertion of the inserted rod 13, when the installation plate 11 is attached to the inner wall of the groove 15, the moving block 17 is restored to the original position under the action of the clamping spring 19, make arc fixture block 16 and gear 12 joint mutually, be convenient for block admittedly to gear 12, gear 12 blocks admittedly with the card of rack 14, thereby be convenient for mounting panel 11 to fix in the inside of recess 15, be convenient for filter screen 8's installation, the user promotes ejector pad 20, ejector pad 20 drives movable block 17 and removes in the inside of mounting groove 18, make arc fixture block 16 break away from mutually with gear 12, make gear 12 rotate, make gear 12 can break away from along rack 14 mutually, be convenient for mounting panel 11 to take out from the inside of recess 15, be convenient for filter screen 8's dismantlement.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a return-air case structure for pre-oxidation furnace, includes return-air case (1), its characterized in that: the wind return box is characterized in that an installation sleeve (2) is fixedly installed on one side inside the wind return box (1), a rotating shaft (5) is movably inserted in the wind return box, a fan blade (3) is fixedly installed at one end of the rotating shaft (5), a rotating rod (6) is fixedly installed at one end of the rotating shaft (5), a cleaning strip (7) is fixedly installed on one side of the rotating shaft, a filter screen (8) is installed at one end inside the wind return box (1), a groove (15) is formed in the lower end of the wind return box (1), an installation plate (11) is installed in the wind return box, the upper end of the installation plate (11) is fixedly connected with the lower end of the filter screen (8), installation holes (21) are formed in two sides of the surface of the installation plate (11), a gear (12) is movably installed on one side of the installation plate (11), an installation groove (18) is formed in one side of the installation plate (11), and a moving block (17) is movably installed at one end of the installation plate, one end of the moving block (17) is fixedly provided with a clamping spring (19), one end of the clamping spring (19) is fixedly connected with one side of the mounting groove (18), one end of the moving block (17) is fixedly provided with a movable rod (10), one end of the movable rod (10) is fixedly provided with an arc-shaped clamping block (16), one side of the arc-shaped clamping block (16) is clamped with the gear (12), an inserting rod (13) is inserted into the mounting hole (21), the upper end of the inserting rod is fixedly connected with one side of the inner wall of the groove (15), one side of the inserting rod (13) is provided with a rack (14), and the rack (14) is clamped with the gear (12).
2. The air return box structure for the pre-oxidation furnace according to claim 1, characterized in that: the air return box is characterized in that an installation frame (9) is fixedly installed inside the air return box (1), and a filter screen (8) is installed inside the installation frame (9).
3. The air return box structure for the pre-oxidation furnace according to claim 2, characterized in that: the filter screen (8) is in a frame shape, and one side of the inner wall of the filter screen (8) is attached to one side of the cleaning strip (7).
4. The air return box structure for the pre-oxidation furnace according to claim 3, wherein: the upper end of the mounting plate (11) is provided with a collecting groove, and the collecting groove is located at the lower end inside the filter screen (8).
5. The air return box structure for the pre-oxidation furnace according to claim 1, characterized in that: the installation sleeve is characterized in that installation rods (4) are fixedly installed on two sides of the surface of the installation sleeve (2), and the installation rods (4) are fixedly connected with two sides of the inner wall of the air return box (1).
6. The air return box structure for the pre-oxidation furnace according to claim 1, characterized in that: the mounting plate is characterized in that a hidden groove is formed in one side of the surface of the mounting plate (11), a sliding groove is formed in the middle of the inside of the mounting plate, a pushing block (20) is movably mounted in the sliding groove, and one end of the pushing block is fixedly connected with one side of a moving block (17).
7. The air return box structure for the pre-oxidation furnace according to claim 1, characterized in that: a connecting groove is formed in one side of the inserting rod (13), and a rack (14) is fixedly mounted on one side of the inner wall of the connecting groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023283797.0U CN214327991U (en) | 2020-12-30 | 2020-12-30 | Air return box structure for pre-oxidation furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023283797.0U CN214327991U (en) | 2020-12-30 | 2020-12-30 | Air return box structure for pre-oxidation furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214327991U true CN214327991U (en) | 2021-10-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023283797.0U Active CN214327991U (en) | 2020-12-30 | 2020-12-30 | Air return box structure for pre-oxidation furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214327991U (en) |
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2020
- 2020-12-30 CN CN202023283797.0U patent/CN214327991U/en active Active
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