CN213348178U - Novel roof ventilation filter screen - Google Patents
Novel roof ventilation filter screen Download PDFInfo
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- CN213348178U CN213348178U CN202022186457.XU CN202022186457U CN213348178U CN 213348178 U CN213348178 U CN 213348178U CN 202022186457 U CN202022186457 U CN 202022186457U CN 213348178 U CN213348178 U CN 213348178U
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Abstract
The utility model discloses a novel roof ventilation filter screen, which comprises a filter screen and a main frame for fixing the filter screen; the main frame is rectangular, a plurality of filter screens are detachably arranged on the main frame, and the filter screens are arranged on the main frame side by side from left to right; the middle part of the main frame is transversely provided with a reinforcing rib, and the reinforcing rib is positioned at the front side or the rear side of the filter screen. The utility model discloses compare the filter screen among the prior art and have the characteristics in aperture less, and aperture one side contacts the air earlier, can effectively block dust, winged insect, tiny fragments, catkin, pollen etc. tiny particle debris in the air to avoid it to adhere to on the cooler surface and cause the jam. Secondly, this application is compared and is had double-deck filter screen structure in prior art, and is wide with the atmosphere interface, and the air volume is big to it is the refrigerated effect promotion. In addition, connect fixedly through the mode of block between this application filter screen, have the installation and dismantle all more convenient advantage.
Description
Technical Field
The utility model relates to a filter screen especially relates to a novel roof ventilation filter screen.
Background
The harmonious electric locomotive has the advantages of large single-shaft power, high automation degree, low failure rate of the whole locomotive and the like, and gradually replaces the traditional alternating-current-direct-current transmission internal combustion and electric locomotive in the railway transportation of China, thereby becoming a main locomotive for the railway trunk transportation. The cooling tower is a heat radiator which combines the oil of the main transformer of the locomotive and the water cooling loop of the main converter, and achieves the purpose of cooling the oil water in the composite cooler through forced air cooling of the composite cooling fan. The heat accumulation of the cooling water of the main converter and the oil heat of the main converter is fast in locomotive application, and the heat dissipation effect directly determines the locomotive application quality. Because the oil and water cooling mode of the locomotive mainly depends on air cooling, the ventilation volume is a key factor influencing the heat dissipation effect.
The air inlet filter screen of the original cooling tower of the harmonious electric locomotive adopts a corrugated single-layer filter screen structure, the contact surface with the atmosphere is small, and the ventilation quantity is limited; meanwhile, the aperture of the filter screen is large, so that physical impurities cannot be effectively filtered, when the locomotive runs, a fan of the cooling tower rotates at a high speed to suck dust, winged insects, small fragments, catkin, pollen and other impurities in the air from an air inlet of the cooling tower at the top of the locomotive, the impurities are attached to the surface of an aluminum corrugated fin of the composite cooler in the cooling tower through an air passage, the impurities accumulate day by day to cause the surface of the cooler to be blocked, the ventilation speed of the cooler is not smooth, the good cooling effect on cooling water and cooling oil is not achieved, the water temperature of the main converter and the oil temperature of the main transformer are increased, and once the water temperature of the main converter or the oil temperature of the main transformer exceeds the rated working temperature of the main converter, the.
In addition, the mounting structure of filter screen is also very important, because the filter screen is the main device that filters external debris, uses the filter screen for a long time and needs timely and periodic washing, and filter screen among the prior art often passes through bolt installation fixed, and it is all very troublesome to dismantle at every turn and wash or change.
SUMMERY OF THE UTILITY MODEL
In order to solve the defects existing in the technology, the utility model provides a novel roof ventilation filter screen.
In order to solve the technical problem, the utility model discloses a technical scheme is: a novel roof ventilation filter screen comprises a filter screen and a main frame for fixing the filter screen; the main frame is rectangular, a plurality of filter screens are detachably arranged on the main frame, and the filter screens are arranged on the main frame side by side from left to right; the middle part of the main frame is transversely provided with a reinforcing rib, and the reinforcing rib is positioned at the front side or the rear side of the filter screen;
the filter screen is in a cylindrical shape, and the diameter of the filter screen hole on the front cambered surface of the filter screen is smaller than that of the filter screen hole on the rear cambered surface; the outside of filter screen is fixed with the screen frame along filter screen a week, and the screen frame can match and install on the main frame.
Further, the diameter of a filter mesh hole of the front cambered surface of the filter screen is 1 mm; the diameter of a filter mesh hole of the rear cambered surface of the filter screen is 1.4 mm.
Furthermore, a groove is formed in the left side edge of the main frame, and extends from top to bottom; the right side of the main frame is internally provided with a left bulge which extends from top to bottom, one end of the right side is hinged on the main frame, the other end of the right side is a free end, and the free end can be fixed on the main frame.
Furthermore, the left end of the filter screen frame is provided with a convex connecting tongue along the height of the filter screen, the right end of the filter screen frame is provided with a concave connecting groove, and the connecting tongue on one filter screen can be embedded in the connecting groove on the adjacent filter screen.
Furthermore, the connecting tongue on the filter screen frame can be inserted into the groove on the left side of the main frame, and the protrusion on the right side of the main frame can be inserted into the connecting groove of the filter screen frame.
Furthermore, the upper end of the screen frame is provided with a raised sliding rail, the upper side of the main frame is internally provided with a sliding groove corresponding to the sliding rail, and the sliding rail can be clamped in the sliding groove and can slide along the sliding groove.
Further, the free end of the right side of the main frame is fixed on the main frame through a spring lock.
Furthermore, the main frame is provided with a plurality of screw holes.
Furthermore, one or more fixing rings are sleeved in the filter screen, and the fixing rings are fixedly connected to the filter screen through bolts.
The utility model discloses the beneficial effect who has does: the utility model discloses compare the filter screen among the prior art and have the characteristics in aperture less, and aperture one side contacts the air earlier, can effectively block dust, winged insect, tiny fragments, catkin, pollen etc. tiny particle debris in the air to avoid it to adhere to on the cooler surface and cause the jam. Secondly, this application is compared and is had double-deck filter screen structure in prior art, and is wide with the atmosphere interface, and the air volume is big to it is the refrigerated effect promotion. In addition, connect fixedly through the mode of block between this application filter screen, have the installation and dismantle all more convenient advantage.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic structural view of a filter screen and a filter screen frame.
In the figure: 1. filtering with a screen; 2. a screen frame; 3. a main frame; 4. a connecting tongue; 5. connecting grooves; 6. a slide rail; 7. a stationary ring; 8. a screw hole; 9. and (5) reinforcing ribs.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
The novel roof ventilation filter screen shown in fig. 1 comprises a filter screen 1 and a main frame 3 for fixing the filter screen; the main frame is rectangular, and a plurality of screw holes 8 are formed in the main frame and used for installing the main frame in the air duct.
The filter screen is in a cylinder shape, and the diameter of the filter screen mesh on the front cambered surface of the filter screen is smaller than that of the filter screen mesh on the rear cambered surface. The size of the existing filter screen is about 5 mm-6 mm, partial sundries can be blocked, but the effectiveness of blocking the sundries can be reduced under the influence of wind power when a vehicle runs at a high speed. The diameter of the filter mesh hole of the front cambered surface of the filter screen in the utility model is 1 mm; the diameter of a filter screen hole of the rear arc surface of the filter screen is 1.4 mm, the filter screen hole is obviously smaller than the size of the existing filter screen, the filter screen hole can not be influenced by wind force, visible impurities are effectively prevented from entering the ventilation channel, and the impurities can be blown off the surface of the filter screen under the action of turbulent flow generated by vehicle running on the surface of the filter screen, so that the filter screen hole has a self-cleaning function.
As shown in fig. 2, a screen frame 2 is fixed on the outer side of the screen along the periphery of the screen, the screen frame is used for fixing the screen on the main frame, one or more fixing rings 7 are sleeved in the screen, and the fixing rings are fixedly connected to the screen through bolts and can fix and support the screen.
A groove is formed in the left side edge of the main frame and extends from top to bottom; the right side of the main frame is internally provided with a left bulge which extends from top to bottom. The left end of the filter screen frame is provided with a convex connecting tongue 4 along the height of the filter screen, the right end is provided with a concave connecting groove 5, and the connecting tongue on one filter screen can be embedded in the connecting groove on the adjacent filter screen. The connecting tongue on the filter screen frame can be inserted into the groove on the left side of the main frame, and the protrusion on the right side of the main frame can be inserted into the connecting groove of the filter screen frame.
The filter screen frame can be installed on the main frame in a matching way through the connecting tongues and the connecting grooves, so that a plurality of filter screens are arranged side by side on the main frame from left to right, and the filter screens can be detached. Because the filter screens are mutually connected through the nesting clamping action between the connecting tongues and the connecting grooves, additional screws are not needed for fixing, the filter screens are more convenient and faster to install, and the number of the filter screens can be adjusted according to the size of the air duct.
The upper end of screen frame is provided with bellied slide rail 6, and the inside slide rail that corresponds of the side of going up of main frame is provided with the spout, and the slide rail can block and arrange the spout in, and can follow the spout and slide. And one end of the right side of the main frame is hinged on the main frame, the other end of the right side of the main frame is a free end, and the free end can be fixed on the main frame.
When the filter screen frame is installed, the right side edge of the main frame is opened by hinging, the connecting tongue of the filter screen faces the left side, and the filter screen frame is inserted from the opening on the right side of the main frame; then, sequentially installing subsequent filter screens by the same method, wherein the connecting tongue of the rear filter screen can be inserted into the connecting groove of the front filter screen, and the like, and sequentially connecting and fixing all the installed filter screens; and after the last filter screen is installed, the right side edge of the main frame is put down, and the right side edge is fixed through a spring lock on the free end of the right side edge, so that the installation of the whole filter screen is completed.
In order to enhance the connection stability of a plurality of side-by-side filter screens, after the process is completed, the middle part of the main frame is transversely provided with the reinforcing ribs 9, the reinforcing ribs are positioned on the front side or the rear side of the filter screens to cover the filter screens, and the number and the positions of the reinforcing ribs can be selected according to actual conditions so as to ensure the stability.
And finally, the front side surface of the filter screen is arranged in the air channel towards the outlet of the air channel, so that small particles in the air need to pass through the filter screen surface with small aperture and then pass through the filter screen surface with large aperture when entering the air channel.
The above embodiments are not intended to limit the present invention, and the present invention is not limited to the above examples, and the technical personnel in the technical field are in the present invention, which can also belong to the protection scope of the present invention.
Claims (9)
1. The utility model provides a novel roof ventilation filter screen which characterized in that: comprises a filter screen (1) and a main frame (3) for fixing the filter screen; the main frame is rectangular, a plurality of filter screens are detachably arranged on the main frame, and the filter screens are arranged on the main frame side by side from left to right; the middle part of the main frame is transversely provided with a reinforcing rib (9), and the reinforcing rib is positioned at the front side or the rear side of the filter screen;
the filter screen is cylindrical, and the diameter of a filter mesh hole on the front cambered surface of the filter screen is smaller than that of a filter mesh hole on the rear cambered surface; the outside of filter screen is fixed with screen frame (2) along filter screen a week, and screen frame can match and install on the main frame.
2. The novel roof ventilation filter screen of claim 1, wherein: the diameter of a filter screen hole of the front cambered surface of the filter screen is 1 mm; the diameter of a filter mesh hole of the rear cambered surface of the filter screen is 1.4 mm.
3. The novel roof ventilation filter screen of claim 2, wherein: a groove is formed in the left side edge of the main frame and extends from top to bottom; the right side of the main frame is internally provided with a left bulge which extends from top to bottom, one end of the right side is hinged on the main frame, the other end of the right side is a free end, and the free end can be fixed on the main frame.
4. The novel roof ventilation filter screen of claim 3, wherein: the left end of the filter screen frame is provided with a convex connecting tongue (4) along the height of the filter screen, the right end of the filter screen frame is provided with a concave connecting groove (5), and the connecting tongue on one filter screen can be embedded in the connecting groove on the adjacent filter screen.
5. The novel roof ventilation filter screen of claim 4, wherein: the connecting tongue on the filter screen frame can be inserted into the groove on the left side edge of the main frame, and the protrusion on the right side edge of the main frame can be inserted into the connecting groove of the filter screen frame.
6. The novel roof ventilation filter screen of claim 5, wherein: the upper end of the screen frame is provided with a raised sliding rail (6), the upper side of the main frame is internally provided with a sliding groove corresponding to the sliding rail, and the sliding rail can be clamped in the sliding groove and can slide along the sliding groove.
7. The novel roof ventilation filter screen of claim 6, wherein: the free end of the right side of the main frame is fixed on the main frame through a spring lock.
8. The novel roof ventilation filter screen of claim 7, wherein: the main frame is provided with a plurality of screw holes (8).
9. The novel roof ventilation filter screen of claim 8, wherein: one or more fixing rings (7) are sleeved in the filter screen and fixedly connected to the filter screen through bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022186457.XU CN213348178U (en) | 2020-09-29 | 2020-09-29 | Novel roof ventilation filter screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022186457.XU CN213348178U (en) | 2020-09-29 | 2020-09-29 | Novel roof ventilation filter screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213348178U true CN213348178U (en) | 2021-06-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022186457.XU Active CN213348178U (en) | 2020-09-29 | 2020-09-29 | Novel roof ventilation filter screen |
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| CN (1) | CN213348178U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114294756A (en) * | 2021-11-30 | 2022-04-08 | 盐城工学院 | Filter device of air conditioner |
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2020
- 2020-09-29 CN CN202022186457.XU patent/CN213348178U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114294756A (en) * | 2021-11-30 | 2022-04-08 | 盐城工学院 | Filter device of air conditioner |
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