Duckbilled hood

Abstract

The utility model discloses a duckbilled air cap, which relates to the technical field of exhaust devices and comprises an air cap body and a fluid bed, the fluid bed is provided with a groove, an air distribution plate is arranged at the groove, a plurality of air holes are arranged on the surface of the air distribution plate, the air cap body comprises an upper cover and a lower cover, the lower cover is positioned at the upper end of the air distribution plate, and the air holes are communicated with the air distribution plate. The upper cover cap is located at the upper end of the lower cover cap, a connecting ring is arranged between the upper cover cap and the lower cover cap, the upper cover cap and the lower cover cap are connected together through the connecting ring, a plurality of fixing blocks are arranged in the hood body and fixedly arranged at the two ends of the lower cover cap respectively, lifting rods are arranged at the ends, away from the lower cover cap, of the fixing blocks, and the lifting rods are inserted into the fixing blocks. The lifting rod is fixedly connected with the upper cover cap, two rotating rods are arranged in the air cap, sliding rods are fixedly arranged at the two ends of each rotating rod, the lower end of the lifting rod is slidably connected with the sliding rods in the transverse direction, and a rotating piece for driving the rotating rods to rotate is arranged at one end of each rotating rod. The air cap has the effect of improving the air diffusion flexibility of the air cap.

Description

Technical Field

[0001] This utility model relates to the field of ventilation device technology, and in particular to a duckbill-shaped vent cap. Background Technology

[0002] As the global construction industry accelerates its transition to zero carbon and environmental regulations become increasingly stringent, the construction sector faces increasingly stringent requirements for energy conservation and emission reduction. In ventilation systems, ventilators, as key components, have become crucial infrastructure for promoting sustainable development. While contributing to energy conservation and emission reduction in buildings, they have also had a profound impact on the sustainable development of the entire construction industry.

[0003] The air cap is generally made of high temperature and wear resistant metal material because when the vibrating fluidized bed is running, the air cap has to withstand high temperature, high speed airflow and the scouring of material particles. The air cap is cylindrical in shape, with a simple structure and easy processing and manufacturing. The airflow is conveyed vertically upward from the bottom. The air cap has air inlet holes on the side, which is conducive to the diffusion of airflow into the vibrating fluidized bed.

[0004] Regarding the aforementioned technologies, different wind speeds can lead to different airflow velocities entering the fluidized bed. When the airflow velocity is too high, the particles in the fluidized bed will be strongly disturbed, resulting in an unstable fluidization state. However, the wind cap's transmission velocity to the airflow is the same, which cannot be flexibly applied to airflows of different velocities, resulting in poor flexibility of the wind cap. Utility Model Content

[0005] To improve the flexibility of airflow diffusion in a windproof hood, this application provides a duckbill-style windproof hood.

[0006] This application provides a duckbill-style hood, which adopts the following technical solution:

[0007] A duckbill-style hood includes a hood body and a fluid bed. The fluid bed has a groove, and a distribution plate is provided in the groove. The surface of the distribution plate has several ventilation holes. The hood body includes an upper cover and a lower cover. The lower cover is located at the upper end of the distribution plate, and the upper cover is located at the upper end of the lower cover. A connecting ring is provided between the upper cover and the lower cover to connect them together. The hood body and the distribution plate are detachably connected. The hood body has several fixing blocks, which are respectively fixed at both ends of the lower cover. The fixing blocks are hollow. A lifting rod is provided at the end of the fixing block away from the lower cover. The lifting rod is inserted into the fixing block, and the upper end of the lifting rod is fixedly connected to the upper cover. The hood has two rotating rods. Both ends of the rotating rods are fixedly provided with sliding rods. The lower end of the lifting rod is slidably connected to the sliding rods in the lateral direction. One end of the rotating rod is provided with a rotating component that drives the two rotating rods to rotate simultaneously.

[0008] By adopting the above technical solution, the upper and lower covers work together to ensure that the airflow is evenly diffused towards the air distribution plate after being blown out. The connecting ring keeps the wind cap body relatively sealed, reducing the probability of solid particles accumulating at the wind cap. The rotating component is activated, which drives the rotating rod to rotate. The rotating rod drives the sliding rod to rotate, which pushes the lifting rod to rise and fall. The rising and falling of the lifting rod drives the upper cover to rise and fall, thereby changing the height of the wind cap body. When encountering changes in airflow velocity, the airflow velocity through the air distribution plate can be relatively stabilized by adjusting the height of the wind cap, improving the flexibility of the wind cap's use.

[0009] Optionally, the connecting ring includes an upper ring, a lower ring, and an elastic element. The lower ring is fixed to the upper end of the lower cover, the upper ring is fixed to the lower end of the upper cover, the upper ring is inserted into the lower ring, the upper ring is slidably connected to the lower ring in a vertical direction, and the elastic element is fixed between the upper ring and the lower ring.

[0010] By adopting the above technical solution, the upper ring is slidably connected to the lower ring along the vertical direction, so that when the height of the upper cover and the lower cover changes, the connecting ring always connects the upper cover and the lower cover together, thereby improving the stability of the wind cap.

[0011] Optionally, the rotating component includes a handle, a first gear, and a second gear. The first gear and the second gear are respectively fixed to one end of two rotating rods, and the first gear meshes with the second gear. The handle is fixed to one end of the rotating rod corresponding to the first gear.

[0012] By adopting the above technical solution, rotating the handle causes the rotating rod corresponding to gear one to rotate, which in turn causes gear one to rotate. Gear one rotates, which in turn causes gear two to rotate, which in turn causes the rotating rod corresponding to gear two to rotate. This allows both rotating rods to rotate simultaneously, thereby adjusting the size of the wind cap and improving the stability of the wind cap during use.

[0013] Optionally, a support plate is provided at the lower end of the hood body. Both ends of the support plate are provided with a connecting rod 1 and a connecting rod 2. The connecting rod 1 is hinged to the support plate. The end of the connecting rod 1 away from the support plate is slidably connected to the air distribution plate in the transverse direction. The connecting rod 2 is slidably connected to the support plate in the length direction of the support plate. The end of the connecting rod 2 away from the support plate is hinged to the air distribution plate. The connecting rod 1 and the connecting rod 2 are also hinged.

[0014] By adopting the above technical solution, the support plate supports the wind cap, and the end of the horizontal sliding link one is close to the air distribution plate. The sliding of link one drives link two to slide horizontally close to the support plate, so that the tilt angle of link one and link two changes, thereby changing the height of the support plate, realizing the adjustment of the wind cap position, and improving the flexibility of the wind cap use.

[0015] Optionally, a slider is fixed at one end of the connecting rod near the air distribution plate. The air distribution plate has several through holes along the transverse direction. A locking rod is provided on one side of the slider. The locking rod passes through the slider and engages with the inner wall of any through hole.

[0016] By adopting the above technical solution, the sliding of the connecting rod drives the sliding block to slide. After the position of the connecting rod is adjusted, the locking rod is inserted through the sliding block into the corresponding through hole, which reduces the probability of the sliding block being displaced due to accidents and improves the stability of the device.

[0017] Optionally, a rubber pad is fixed to the upper end of the support plate, and the wind cap body is in close contact with the rubber pad, which reduces the vibration generated by the wind cap during operation.

[0018] By adopting the above technical solution, the rubber pad fits tightly against the wind cap body, forming a good buffer layer, reducing vibration transmission, reducing the damage of vibration to the wind cap body and support structure during long-term operation, and extending the service life of the equipment.

[0019] Optionally, the surface of the upper cover is provided with a number of reinforcing ribs, which are evenly distributed along the circumference of the upper cover and are inclined from top to bottom away from the lifting rod.

[0020] By adopting the above technical solution, the setting of reinforcing ribs improves the structural strength of the upper cover and effectively reduces the probability of deformation of the upper cover during use. The design of several reinforcing ribs being evenly distributed along the circumference of the upper cover makes the stress more uniform and further enhances the overall stability of the upper cover.

[0021] Optionally, the upper end of the hood body is provided with a threaded rod, which passes through the hood body and is threadedly connected to the air distribution plate. The upper end of the hood body is provided with a fixing nut, which is threadedly connected to the threaded rod.

[0022] By adopting the above technical solution, the wind cap body and the air distribution plate are detachably connected by a threaded rod and a fixing nut. This connection method not only has a simple structure and improves the convenience of use, but also ensures the stability of the connection and reduces the probability of the wind cap body and the air distribution plate separating due to vibration or external force during use.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. Start the rotating component, which drives the rotating rod to rotate. The rotating rod drives the sliding rod to rotate, and the sliding rod drives the lifting rod to rise and fall. The rising and falling of the lifting rod drives the upper cover to rise and fall, thereby changing the height of the wind cap body. When encountering changes in airflow velocity, the wind cap height can be adjusted to make the airflow velocity through the air distribution plate relatively stable, improving the flexibility of wind cap use.

[0025] 2. After adjusting the position of connecting rod one, insert the slider clamp into the corresponding through hole to reduce the probability of the slider shifting due to accidents and improve the stability of the device.

[0026] 3. The hood body and the air distribution plate are detachably connected by a threaded rod and a fixing nut. This connection method not only simplifies the structure but also improves the convenience of use. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of a duckbill-style hood.

[0028] Figure 2 This is a cross-sectional schematic diagram intended to highlight the lower cover connection structure in the embodiment.

[0029] Figure 3 This is a schematic diagram intended to highlight the connection structure of the fixed block in the embodiment.

[0030] Explanation of reference numerals in the attached drawings: 1. Wind cap body; 11. Upper cover; 111. Threaded rod; 112. Fixing nut; 113. Reinforcing rib; 12. Lower cover; 121. Rotating handle; 122. Rotating rod; 123. Gear 1; 124. Gear 2; 125. Slide rod; 126. Fixing block; 127. Lifting rod; 13. Connecting ring; 131. Upper ring; 132. Lower ring; 133. Elastic element; 2. Fluid bed; 21. Air distribution plate; 211. Vent hole; 22. Support plate; 221. Connecting rod 1; 222. Connecting rod 2; 223. Sliding block; 224. Locking rod; 225. Rubber pad; 226. Through hole. Detailed Implementation

[0031] The present application will be further described in detail below with reference to all the accompanying drawings.

[0032] This application discloses a duckbill-style hood. Example

[0033] Reference Figure 1 and Figure 2 A duckbill-style windproof cap includes a windproof cap body 1 and a fluid bed 2. The fluid bed 2 has a groove, and a wind distribution plate 21 is provided in the groove. A threaded rod 111 is provided at the upper end of the windproof cap body 1. The threaded rod 111 passes through the windproof cap and is threadedly connected to the wind distribution plate 21. A fixing nut 112 is provided at the upper end of the windproof cap body 1. The fixing nut 112 is threadedly connected to the threaded rod 111. The windproof cap body 1 and the wind distribution plate 21 are detachably connected through the threaded rod 111 and the fixing nut 112. This connection method not only has a simple structure and improves the convenience of use, but also ensures the stability of the connection and reduces the probability of the windproof cap body 1 and the wind distribution plate 21 separating due to vibration or external force during use.

[0034] Reference Figure 1 and Figure 2The wind cap body 1 includes an upper cover 11 and a lower cover 12. The lower cover 12 is located at the upper end of the air distribution plate 21, and the upper cover 11 is located at the upper end of the lower cover 12. A connecting ring 13 is provided between the upper cover 11 and the lower cover 12. The upper cover 11 and the lower cover 12 are connected together by the connecting ring 13 to form a relatively sealed space, reducing the probability of solid particles accumulating at the wind cap. The upper cover 11 and the lower cover 12 cooperate to make the airflow diffuse evenly towards the air distribution plate 21 after it is blown out. Several vent holes 211 are opened on the surface of the air distribution plate 21, and the airflow enters the fluid bed 2 through the vent holes 211.

[0035] Reference Figure 2 The connecting ring 13 includes an upper ring 131, a lower ring 132, and an elastic element 133. The lower ring 132 is fixed to the upper end of the lower cover 12, and the upper ring 131 is fixed to the lower end of the upper cover 11. The upper ring 131 is inserted into the lower ring 132. The upper ring 131 is slidably connected to the lower ring 132 vertically, so that when the height of the upper cover 11 and the lower cover 12 changes, the connecting ring 13 always connects the upper cover 11 and the lower cover 12 together, improving the stability of the wind cap. The elastic element 133 is fixed between the upper ring 131 and the lower ring 132. The elastic element 133 provides a buffering effect for the wind cap, thereby effectively reducing the risk of damage to the wind cap caused by vibration during operation and improving the stability and service life of the wind cap.

[0036] Reference Figure 2 and Figure 3 The wind cap body 1 has a handle 121 on the outside and two rotating rods 122 inside. The two rotating rods 122 are located at both ends of the wind cap body 1. The wind cap body 1 has a gear 123 and a gear 2 124 inside. The gear 123 and the gear 2 124 are fixedly connected to the two rotating rods 122 respectively, and the gear 123 meshes with the gear 2 124. The handle 121 is fixedly connected to the rotating rod 122 corresponding to the gear 123. When the handle 121 is rotated, the handle 121 rotates and drives the rotating rod 122 corresponding to the gear 123 to rotate, thereby driving the gear 123 to rotate. The rotation of the gear 123 drives the gear 2 124 to rotate, thereby realizing that the two rotating rods 122 rotate simultaneously.

[0037] Reference Figure 2 and Figure 3Several fixing blocks 126 are fixed at both ends of the lower cover 12. The fixing blocks 126 are hollow. A lifting rod 127 is provided at the end of the fixing block 126 away from the lower cover 12. The lifting rod 127 is inserted into the fixing block 126, and the upper end of the lifting rod 127 is fixedly connected to the upper cover 11. Sliding rods 125 are fixed at both ends of the rotating rod 122. The rotation of the rotating rod 122 drives the sliding rod 125 to rotate. The lower end of the lifting rod 127 is slidably connected to the sliding rod 125 in the lateral direction. The rotation of the sliding rod 125 pushes the lifting rod 127 to rise and fall. The rise and fall of the lifting rod 127 drives the upper cover 11 to rise and fall, thereby changing the height of the wind cap body 1. When encountering changes in airflow velocity, the airflow velocity through the wind distribution plate 21 can be relatively stabilized by adjusting the height of the wind cap, thereby improving the flexibility of the wind cap.

[0038] Reference Figure 2 The lower end of the hood body 1 is provided with a support plate 22, which supports the hood body 1. Both ends of the support plate 22 are provided with a first connecting rod 221 and a second connecting rod 222. The first connecting rod 221 is hinged to the support plate 22. The end of the first connecting rod 221 away from the support plate 22 is slidably connected to the air distribution plate 21 in the lateral direction. The second connecting rod 222 is slidably connected to the support plate 22 in the length direction of the support plate 22. The end of the second connecting rod 222 away from the support plate 22 is hinged to the air distribution plate 21. The first connecting rod 221 is slidably laterally close to the end of the first connecting rod 221 near the air distribution plate 21. The sliding of the first connecting rod 221 causes the second connecting rod 222 to slide laterally close to the support plate 22, so that the tilt angle of the first connecting rod 221 and the second connecting rod 222 changes, thereby changing the height of the support plate 22, realizing the adjustment of the hood position, and improving the flexibility of the hood use.

[0039] Reference Figure 2 A slider 223 is fixed to one end of the connecting rod 221 near the air distribution plate 21. Sliding the slider 223 causes the connecting rod 221 to slide. The air distribution plate 21 has several through holes 226 along the transverse direction. A locking rod 224 is provided on one side of the slider 223. After the position of the connecting rod 221 is adjusted, the locking rod 224 is inserted through the slider 223 into the corresponding through hole 226, reducing the probability of the slider 223 being displaced due to accidents and improving the stability of the device. A rubber pad 225 is fixed to the upper end of the support plate 22. The wind cap body 1 is in close contact with the rubber pad 225. The rubber pad 225 effectively reduces the noise generated by the vibration of the wind cap body 1 during operation, forming a good buffer layer, reducing vibration transmission, reducing the damage of vibration to the wind cap body 1 and the support structure during long-term operation, and extending the service life of the equipment.

[0040] Reference Figure 3The upper cover 11 has several reinforcing ribs 113 fixed on its surface, which improves the structural strength of the upper cover 11. The reinforcing ribs 113 are evenly distributed around the upper cover 11, making the force more uniform and enhancing the overall stability of the upper cover 11. The reinforcing ribs 113 are inclined from top to bottom away from the lifting rod 127, which facilitates the guidance of airflow.

[0041] The implementation principle of a duckbill-style hood in this embodiment is as follows: Rotating the handle 121 causes the connected rotating rod 122 to rotate, which in turn drives gear 123 to rotate. Gear 123 then drives gear 124 to rotate, thus rotating both rotating rods 122. The rotation of the rotating rods 122 then drives the sliding rod 125 to rotate, which in turn raises and lowers the lifting rod 127, thereby changing the height of the hood body 1 between the upper cover 11 and the lower cover 12. When encountering changes in airflow velocity, adjusting the hood height alters the hood's resistance to airflow, thus stabilizing the airflow velocity through the air distribution plate 21 and improving the flexibility of the hood's use.

[0042] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A duckbill-style hood, comprising a hood body (1) and a fluid bed (2), characterized in that: The fluid bed (2) has a groove, and an air distribution plate (21) is provided in the groove. The surface of the air distribution plate (21) has several ventilation holes (211). The hood body (1) includes an upper cover (11) and a lower cover (12). The lower cover (12) is located at the upper end of the air distribution plate (21), and the upper cover (11) is located at the upper end of the lower cover (12). A connecting ring (13) is provided between the upper cover (11) and the lower cover (12). The connecting ring (13) connects the upper cover (11) and the lower cover (12) together. The hood body (1) is detachably connected to the air distribution plate (21). Several fixing blocks (126) are provided inside the hood body (1). Several fixing blocks (126) are respectively fixed at both ends of the lower cover (12). The fixing blocks (126) are hollow. A lifting rod (127) is provided at one end of the fixing block (126) away from the lower cover (12). The lifting rod (127) is inserted into the fixing block (126), and the upper end of the lifting rod (127) is fixedly connected to the upper cover (11). Two rotating rods (122) are provided inside the hood. Sliding rods (125) are fixed at both ends of the rotating rods (122). The lower end of the lifting rod (127) is slidably connected to the sliding rods (125) in the transverse direction. A rotating component is provided at one end of the rotating rod (122) to drive the two rotating rods (122) to rotate simultaneously.

2. The duckbill-style hood according to claim 1, characterized in that: The connecting ring (13) includes an upper ring (131), a lower ring (132) and an elastic element (133). The lower ring (132) is fixed to the upper end of the lower cover (12), the upper ring (131) is fixed to the lower end of the upper cover (11), the upper ring (131) is inserted into the lower ring (132), the upper ring (131) is slidably connected to the lower ring (132) in the vertical direction, and the elastic element (133) is fixed between the upper ring (131) and the lower ring (132).

3. A duckbill-style hood according to claim 1, characterized in that: The rotating component includes a handle (121), a first gear (123), and a second gear (124). The first gear (123) and the second gear (124) are respectively fixed at one end of two rotating rods (122), and the first gear (123) meshes with the second gear (124). The handle (121) is fixed at one end of the rotating rod (122) corresponding to the first gear (123).

4. A duckbill-style hood according to claim 1, characterized in that: The lower end of the hood body (1) is provided with a support plate (22). Both ends of the support plate (22) are provided with a connecting rod 1 (221) and a connecting rod 2 (222). The connecting rod 1 (221) is hinged to the support plate (22). The end of the connecting rod 1 (221) away from the support plate (22) is slidably connected to the air distribution plate (21) in the transverse direction. The connecting rod 2 (222) is slidably connected to the support plate (22) along the length direction of the support plate (22). The end of the connecting rod 2 (222) away from the support plate (22) is hinged to the air distribution plate (21). The connecting rod 1 (221) and the connecting rod 2 (222) are also hinged.

5. A duckbill-style hood according to claim 4, characterized in that: The connecting rod (221) is fixed with a slider (223) at one end near the air distribution plate (21). The air distribution plate (21) has several through holes (226) in the transverse direction. A locking rod (224) is provided on one side of the slider (223). The locking rod (224) passes through the slider (223) and engages with the inner wall of any through hole (226).

6. A duckbill-style hood according to claim 4, characterized in that: A rubber pad (225) is fixed at the upper end of the support plate (22), and the wind cap body (1) is in close contact with the rubber pad (225). The rubber pad (225) reduces the vibration generated by the wind cap during operation.

7. A duckbill-style hood according to claim 1, characterized in that: The upper cover (11) is fixed with a number of reinforcing ribs (113), which are evenly distributed around the upper cover (11) and are inclined from top to bottom away from the lifting rod (127).

8. A duckbill-style hood according to claim 1, characterized in that: The upper end of the hood body (1) is provided with a threaded rod (111), which passes through the hood body (1) and is threadedly connected to the air distribution plate (21). The upper end of the hood body (1) is provided with a fixing nut (112), which is threadedly connected to the threaded rod (111).

Images