Conical hood
By introducing a filter screen and drainage channel structure into the conical wind cap, the problems of floating debris clogging and rainwater erosion are solved, achieving convenient cleaning and protection.
Patent Information
- Application Number
- CN202520043468.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-08
- Publication Date
- 2026-01-16
- Estimated Expiration
- 2035-01-08
AI Technical Summary
Existing cone-shaped vent caps are prone to clogging of the drainage holes due to floating debris during use, making cleaning inconvenient and potentially causing rainwater to corrode the pipes.
A conical hood was designed, comprising a lower ventilator and an upper ventilator, equipped with a filter screen and a drain channel. The filter screen is used to filter floating objects, and the drain channel and overflow hole are used to drain water in a timely manner to prevent water accumulation and spread.
Filtering out floating debris with a filter screen prevents clogging, while timely drainage through the drain trough and overflow hole reduces damage to the system, simplifies cleaning, and improves ease of use.
Smart Images
Figure CN223807334U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to rainwater shielding technical field, concretely is a conical hood. BACKGROUND
[0002] The utility model relates to a rainproof conical hood, which is applied to mechanical ventilation engineering and is suitable for the high-altitude discharge of general gas, toxic and harmful gas and dust-containing gas. The top exhaust port of the device can make the airflow have a certain lifting, which is beneficial to the atmospheric dilution of the discharged gas. The special rain collecting and draining component can smoothly and timely drain rainwater, thereby avoiding the rainwater and rainwater containing harmful substances from flowing down along the inner wall and outer wall of the pipeline and further corroding the pipeline.
[0003] The current conical hood usually only has the function of rain shielding during use. During long-term use of the conical hood, floating objects in the air inevitably enter the interior of the conical hood, causing the drainage hole to be blocked. Manual cleaning is required. Since the space in the conical hood is relatively complex, cleaning is relatively inconvenient.
[0004] Therefore, the conical hood is proposed to solve the above problems. UTILITY MODEL CONTENTS
[0005] The utility model aims at solving the above technical problems.
[0006] To achieve the above purpose, the utility model adopts the following technical scheme: a conical hood, comprising a lower ventilation cover and an upper ventilation cover installed on the upper part of the lower ventilation cover; a first ventilation hole is formed in the bottom of the lower ventilation cover, and a second ventilation hole is formed in the top of the upper ventilation cover; a ventilation pipeline extending into the exhaust cover is installed in the first ventilation hole, and a rain shield is arranged above the ventilation pipeline; a drainage groove for draining rainwater is formed between the outer side wall of the ventilation pipeline and the inner side wall of the lower ventilation cover; a drainage hole is formed in the bottom of the lower ventilation cover and communicates with the drainage groove; a mounting seat is installed on the second ventilation hole, and a filter screen is installed on the mounting seat to filter the gas entering the lower ventilation cover and the upper ventilation cover.
[0007] Further, a fixing sleeve sleeved on the ventilation pipeline is further fixed to the bottom end of the lower ventilation cover, and the fixing sleeve is connected to the side wall of the lower ventilation cover through a plurality of fixing bolts.
[0008] Further, a plurality of overflow assemblies are equidistantly formed in the lower part of the circumferential wall of the lower ventilation cover; each overflow assembly comprises a plurality of overflow holes.
[0009] Further, a plurality of protrusions are equidistantly fixed to the circumferential surface of the filter screen, and a plurality of placement grooves equal in number to the protrusions are equidistantly formed in the top of the mounting seat in the circumferential direction.
[0010] Further, a threaded sleeve is threadedly mounted on the mounting seat, and a "ring" shaped sleeve for fixing the filter screen is integrally formed on the top of the threaded sleeve.
[0011] Further, an outwardly expanding expansion opening is integrally formed on the top of the ventilation duct, and a shielding cap fixedly connected with the rainproof cap is arranged above the expansion opening, and a plurality of supports are fixedly arranged between the shielding cap and the lower ventilation cover in the circumferential direction.
[0012] Further, a flange plate is fixedly arranged on the bottom of the ventilation duct, and the flange plate is arranged outside the lower ventilation cover.
[0013] The utility model discloses the beneficial effects of:
[0014] The utility model discloses a filter screen is detachably installed on the upper part of the upper ventilation cover, and the filter screen can directly filter the floating matter in the air, avoids the floating matter from entering the inside of the conical ventilation cap, thereby can only need to clean the filter screen, and need not clean the conical ventilation cap, thereby providing convenience for the staff.
[0015] The utility model discloses that a plurality of overflow holes are arranged on the side of the lower ventilation cover, and when the water level in the drainage groove reaches a certain liquid level, the water can be timely discharged through the overflow holes, thereby avoiding the water in the drainage groove from spreading to the inside of the ventilation duct, and reducing the damage to the air extraction system or the exhaust system. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 It is the three-dimensional structure schematic diagram of the utility model;
[0017] Figure 2 It is the cross section structure schematic diagram of the utility model;
[0018] Figure 3 It is the three-dimensional structure schematic diagram of the lower ventilation cover in the utility model (from the lower to the upper observation angle);
[0019] Figure 4 It is the explosion structure schematic diagram of the upper ventilation cover, the filter screen and the "ring" shaped sleeve in the utility model.
[0020] The names corresponding to the marks in the drawing are as follows:
[0021] 1, lower ventilation cover, 2, upper ventilation cover, 3, first ventilation hole, 4, second ventilation hole, 5, ventilation duct, 6, rainproof cap, 7, drainage opening, 8, mounting seat, 9, filter screen, 10, fixing sleeve, 11, overflow hole, 12, protrusion, 13, placing groove, 14, threaded sleeve, 15, "ring" shaped sleeve, 16, expansion opening, 17, shielding cap, 18, support, 19, flange plate. DETAILED DESCRIPTION
[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by those skilled in the art belong to the scope of protection of the utility model.
[0023] A conical hood comprises a lower ventilation cover 1 and an upper ventilation cover 2 installed on the upper part of the lower ventilation cover 1; the bottom of the lower ventilation cover 1 is provided with a first ventilation hole 3, and the top of the upper ventilation cover 2 is provided with a second ventilation hole 4; through the cooperation of the first ventilation hole 3 and the second ventilation hole 4, the gas discharged by the exhaust system can be discharged to the outside through the first ventilation hole 3 and the second ventilation hole 4, or the gas sucked by the exhaust system can be delivered to the indoor through the first ventilation hole 3 and the second ventilation hole 4; it should be noted that the exhaust system and the exhaust system belong to the prior art, and the present application will not be described in detail.
[0024] The bottom of the first ventilation hole 3 is integrally formed with a fixing sleeve 10, and the fixing sleeve 10 is threadedly connected with the ventilation pipeline 5 through a plurality of fixing bolts (not shown in the figure); so as to fix the ventilation pipeline 5; the bottom end of the ventilation pipeline 5 extends to the outside of the lower ventilation cover 1 and is provided with a flange plate 19, and the flange plate 19 can be installed at the air outlet of the exhaust system or the air inlet of the exhaust system; so as to fix; prevent the lower ventilation cover 1 and the lower ventilation cover 1 from shaking during use;
[0025] The top end of the ventilation pipeline 5 extends to the inside of the lower ventilation cover 1 and is fixed with an integrally formed expansion port 16, and the upper part of the expansion port 16 is provided with a reverse "conical" shaped shielding cap 17; it should be noted that the lower part of the shielding cap 17 is left with a certain gap with the inner side wall of the expansion port 16, which is used for air inlet or air outlet; a plurality of supports 18 are fixed on the outer surface of the shielding cap 17 at equal intervals in the circumferential direction, and the supports 18 are used to support the shielding cap 17; the upper part of the shielding cap 17 is fixed with a positive "conical" shaped rainproof cap 6, and the rainproof cap 6 is located directly above the expansion port 16; through the setting of the rainproof cap 6, the rainproof cap 6 plays a role in blocking rainwater, preventing rainwater from entering the ventilation system or the exhaust system through the ventilation pipeline 5 and causing damage;
[0026] It should be noted that the outer wall of the ventilation duct 5 and the inner wall of the lower ventilation cover 1 form a drainage groove; the rainwater on the rain cover 6 can fall into the inside of the drainage groove, and the bottom of the lower ventilation cover 1 is equally provided with a plurality of drainage openings 7 in the circumferential direction, which are communicated with the drainage groove; through the setting of the drainage opening 7, the accumulated water in the drainage groove can be discharged in time; to avoid the spread of too much rainwater into the inside of the ventilation duct 5; it should be noted that the sidewall of the lower ventilation cover 1 is equally provided with a plurality of overflow assemblies in the circumferential direction, each overflow assembly includes a plurality of overflow holes 11, through the setting of the overflow hole 11, if the accumulated water in the drainage groove reaches a certain liquid level, it can also be discharged through the overflow hole 11, further playing a positive role in drainage;
[0027] The top of the second ventilation opening 4 is fixed with a mounting seat 8, and the inside of the mounting seat 8 is placed with a filter screen 9, through the setting of the filter screen 9, it plays a role in filtering the gas entering into the lower ventilation cover 1 and the upper ventilation cover 2; to avoid the case that larger floating objects enter into the inside of the lower ventilation cover 1 to block the water flow hole 7 or the overflow hole 8; it should be noted that the outer surface of the filter screen 9 is equally fixed with a plurality of protrusions 12 in the circumferential direction, and the top of the mounting seat 8 is equally provided with a plurality of placing grooves 13 in the circumferential direction, in the process of use, the protrusions 12 can be placed in the inside of the placing grooves 13, thereby playing a limiting role, preventing the filter screen 9 from deviating in the process of use.
[0028] The mounting seat 8 is threadedly provided with a threaded sleeve 14, and the top of the threaded sleeve 14 is fixed with a "ring" shaped sleeve 15, it should be noted that the hole diameter of the "ring" shaped sleeve 15 is smaller than the filter screen 9; in the process of rotating the threaded sleeve 14 on the mounting seat 8, it can drive the "ring" shaped sleeve 15 to move downward and fasten the filter screen 9, further playing a role in fixing the filter screen 9.
[0029] The conical air cap can be installed at the air outlet of the exhaust system for use; it can also be installed at the air inlet of the exhaust system for use;
[0030] When the exhaust system exhausts: it can extract the indoor gas and discharge it to the outdoor; the discharged gas first enters into the inside of the lower ventilation cover 1 and the upper ventilation cover 2 through the ventilation duct 5, and then is discharged through the filter screen 9; thereby it can discharge the indoor gas to the outdoor, thereby completing the discharge work.
[0031] When the exhaust system exhausts: it can extract the indoor gas and discharge it to the outdoor; the discharged gas first enters into the inside of the lower ventilation cover 1 and the upper ventilation cover 2 through the ventilation duct 5, and then is discharged through the filter screen 9; thereby it can discharge the indoor gas to the outdoor, thereby completing the discharge work.
[0032] If it is raining, rain will drip on the rain hat 6, because the rain hat 6 is conical shape, the rain on the rain hat 6 can fall to the inside of the drain groove; Through the drain 7 can be discharged in time; If the rain is more, the water in the drain groove continues to rise; If the water level in the drain groove reaches the overflow hole 11, through the overflow hole 11 can also be discharged in time, to avoid the case of too much rain spreading to the ventilation duct 5.
[0033] In the case of not being used, the floating material (usually refers to fallen leaves) in the air can also be filtered by the filter screen 9, to avoid the floating material floating in the air to the inside of the ventilation cover 1, causing the water inlet 7 and the overflow hole 11 to be blocked.
Claims
1. A conical hood, comprising a lower ventilation cover (1) and an upper ventilation cover (2) installed on the upper portion of the lower ventilation cover (1); a first ventilation hole (3) is formed on the bottom of the lower ventilation cover (1), and a second ventilation hole (4) is formed on the top of the upper ventilation cover (2); a ventilation duct (5) extending into the lower ventilation cover (1) is installed in the first ventilation hole (3), and a rain cover (6) is arranged above the ventilation duct (5); a drainage groove for discharging rainwater is formed between the outer side wall of the ventilation duct (5) and the inner side wall of the lower ventilation cover (1); and a drain hole (7) communicating with the drainage groove is formed on the bottom of the lower ventilation cover (1); characterized in that: The second ventilation opening (4) is provided with a mounting seat (8), and the mounting seat (8) is provided with a filter screen (9) for filtering the gas entering the lower ventilation cover (1) and the upper ventilation cover (2).
2. A conical drape according to claim 1, wherein: The bottom end of the lower ventilation cover (1) is further provided with a fixing sleeve (10) sleeved on the ventilation duct (5), and the fixing sleeve (10) is connected with the side wall of the lower ventilation cover (1) through a plurality of fixing bolts.
3. A conical drape according to claim 1, wherein: A plurality of groups of overflow assemblies are equidistantly arranged on the lower part of the circumferential wall of the lower ventilation cover (1); each group of overflow assemblies comprises a plurality of overflow holes (11).
4. A conical drape according to claim 1, wherein: A plurality of protrusions (12) are equidistantly arranged on the circumferential surface of the filter screen (9), and a plurality of placing grooves (13) are equidistantly arranged on the top of the mounting seat (8) in the circumferential direction, and the number of the placing grooves (13) is same as that of the protrusions (12).
5. A conical drape according to claim 4, wherein: A threaded sleeve (14) is threadedly arranged on the mounting seat (8), and the top of the threaded sleeve (14) is integrally provided with an annular sleeve (15) for fixing the filter screen (9).
6. A conical drape according to claim 1, wherein: The top of the ventilation duct (5) is integrally provided with an outwardly expanding expansion opening (16), and the upper part of the expansion opening (16) is provided with a shielding cap (17) fixedly connected with the rainproof cap (6), and a plurality of supports (18) are equidistantly arranged between the shielding cap (17) and the lower ventilation cover (1) in the circumferential direction.
7. A conical drape according to claim 1, wherein: The bottom of the ventilation duct (5) is fixedly provided with a flange plate (19), and the flange plate (19) is located outside the lower ventilation cover (1).