Gas discharge ventilation device

Abstract

The utility model discloses a gas discharge ventilation device which comprises a square air duct and an air inlet external connection flange arranged outside the front end of the square air duct, an air outlet external connection flange is arranged outside the rear end of the square air duct, and the air inlet external connection flange and the air outlet external connection flange are both fixedly connected with the square air duct through welding. A plurality of installation adjustable devices are additionally arranged at the bottom end of a square air duct, the fixing mode of two concentric-square-shaped installation supports at the bottom of the square air duct is changed, and the mode that the concentric-square-shaped installation supports are fixedly connected with the square air duct in a welding mode is changed into the mode that the concentric-square-shaped installation supports are fixedly connected with the square air duct through the installation adjustable devices. The installation adjustable device can flexibly change the positions of the two concentric-square-shaped installation supports through adjustment, and in the actual installation process, the distance between the concentric-square-shaped installation support A and the concentric-square-shaped installation support B can be accurately adjusted according to different installation environments and use requirements so as to better adapt to different installation spaces and connection requirements.

Description

Technical Field

[0001] This utility model belongs to the technical field of ventilation engineering, and specifically relates to a gas emission ventilation device. Background Technology

[0002] In industrial production, building ventilation, and various scenarios requiring gas exhaust ventilation, gas exhaust ventilation devices play a crucial role. Traditional gas exhaust ventilation devices often face several challenges during installation. For example, the traditional method of fixing the ventilation device typically uses a rigid connection structure, lacking necessary adjustment flexibility. In actual installation scenarios, due to varying installation environments, such as space limitations and coordination with other equipment layouts, the installation position of the ventilation device may be difficult to adjust precisely, resulting in a complex and time-consuming installation process. Any deviation in the installation position may affect the airflow distribution of the entire ventilation system, reduce ventilation efficiency, and even lead to equipment instability and shortened equipment lifespan.

[0003] The inflexibility of traditional fixing methods becomes even more apparent when dealing with different installation conditions and needs. For example, when it is necessary to fine-tune the position of the ventilation device to adapt to new duct connection requirements or optimize the ventilation path, the traditional rigid connection structure is difficult to implement, often requiring complex modifications or replacement of components, which increases installation costs and maintenance difficulty. Utility Model Content

[0004] The purpose of this utility model is to provide a gas emission ventilation device to solve the problems in the installation of traditional gas emission ventilation devices mentioned in the background art, such as the use of rigid connection structure, poor adjustment flexibility, difficulty in accurately adjusting the installation position due to differences in installation environment, complicated and time-consuming process, position deviation affecting ventilation efficiency, equipment stability and lifespan, difficulty in fine-tuning the position to meet different installation conditions, often requiring complex modification or replacement of parts, increasing installation cost and maintenance difficulty.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a gas emission ventilation device, comprising a square duct and an external air inlet flange disposed on the front end of the square duct, and an external air outlet flange disposed on the rear end of the square duct. Both the external air inlet flange and the external air outlet flange are fixedly connected to the square duct by welding. Multiple screw holes are equidistantly arranged inside both the external air inlet flange and the external air outlet flange. The external air inlet flange is connected to an air inlet pipe by multiple screws, and the external air outlet flange is connected to an air outlet pipe by multiple screws. A U-shaped mounting bracket A is disposed on the left side of the bottom center of the square duct, and a U-shaped mounting bracket B is disposed on the right side of the bottom center of the square duct. Multiple bracket mounting slots are disposed inside the bottom ends of both the U-shaped mounting bracket A and the U-shaped mounting bracket B. The U-shaped mounting bracket A and the U-shaped mounting bracket B are connected to the square duct by multiple adjustable mounting devices, and the multiple adjustable mounting devices are respectively fixed at the bottom center of the square duct and on its front and rear sides.

[0006] Preferably, the adjustable mounting device includes a metal screw A, an adjustment groove A, a U-shaped metal base, an adjustment groove B, a metal screw B, and a U-shaped sleeve base. The U-shaped sleeve base is horizontally arranged at the bottom of the square air duct, and the tops of the left and right ends of the U-shaped sleeve base are respectively fixed to the bottom of the left and right ends of the square air duct by welding. The U-shaped opening of the U-shaped sleeve base is sleeved on the outside of the top of the U-shaped mounting bracket A and the U-shaped mounting bracket B with the U-shaped opening facing upward. An adjustment groove A is provided inside the left side of the center of the U-shaped sleeve base, and an adjustment groove B is provided inside the right side of the center of the U-shaped sleeve base. Metal screw A and metal screw B are vertically inserted into the adjustment groove A and the adjustment groove B, respectively. The top of the metal screw A is fixed to the inner wall of the top of the U-shaped mounting bracket A by welding, and the top of the metal screw B is fixedly connected to the inner wall of the top of the U-shaped mounting bracket B by welding.

[0007] Preferably, the thickness of the U-shaped mounting bracket A and the U-shaped mounting bracket B is equal to the opening depth of the U-shaped socket base, and both the U-shaped mounting bracket A and the U-shaped mounting bracket B can slide left and right inside the U-shaped socket base. The length of the adjusting groove A and the adjusting groove B is less than half the length of the U-shaped socket base.

[0008] Preferably, the adjustable mounting device further includes a fastening nut, and both the metal screw A and the metal screw B are threaded with a fastening nut, which is located at the bottom end of the U-shaped mounting base. The fastening nut can rotate clockwise and counterclockwise to move up and down on the outside of the metal screw A and the metal screw B respectively through the thread action.

[0009] Preferably, after the fastening nut is loosened, the U-shaped mounting bracket A can drive the metal screw A to slide left and right in the adjustment groove A, and the U-shaped mounting bracket B can drive the metal screw B to slide left and right in the adjustment groove B. After the fastening nut is tightened, the top ends of the U-shaped mounting bracket A and the U-shaped mounting bracket B can be firmly clamped between the U-shaped sleeve base and the bottom end of the square air duct.

[0010] Preferably, a motor is installed inside the center of the square air duct, the output shaft of the motor faces forward, and a metal fixing sleeve is fixed to the outside of the motor. Four metal brackets are welded at equal intervals on the circular outer wall of the metal fixing sleeve. The four metal brackets are respectively set perpendicular to the inner walls of the top, bottom and left and right ends of the square air duct.

[0011] Preferably, each of the four metal brackets has a screw fixing block welded to its outer end. The four screw fixing blocks are respectively attached to the inner walls of the left and right ends and the top and bottom ends of the square air duct, and each of the four screw fixing blocks is fixedly connected to the square air duct by multiple screws.

[0012] Preferably, an impeller is fixed to the outside of the front end of the motor's output shaft, and multiple fan blades are equidistantly arranged on the circular outer wall of the impeller, and when the impeller drives the fan blades to rotate, the fan blades do not contact the inner wall of the square air duct.

[0013] Compared with the prior art, the present invention provides a gas emission ventilation device, which has the following features:

[0014] Beneficial effects:

[0015] This invention adds multiple adjustable mounting devices to the bottom of a square air duct and changes the fixing method of the two U-shaped mounting brackets at the bottom of the square air duct. Instead of welding the U-shaped mounting brackets to the square air duct, it uses adjustable mounting devices for fixing. These adjustable devices allow for flexible adjustment of the positions of the two U-shaped mounting brackets. During actual installation, the distance between U-shaped mounting bracket A and U-shaped mounting bracket B can be precisely adjusted according to different installation environments and usage requirements to better adapt to different installation spaces and connection requirements. This flexible adjustment function can also accommodate different specifications of air inlet and outlet pipes, ensuring a more stable and efficient connection between the device and various pipes. Furthermore, this flexible adjustment method avoids the hassle of re-welding when the installation position is inaccurate, effectively improving the versatility and applicability of the device and better meeting diverse engineering installation needs. Attached Figure Description

[0016] Figure 1 This is a side-view perspective three-dimensional structural diagram of a gas emission ventilation device according to the present invention.

[0017] Figure 2 This is a rear view schematic diagram of a gas emission ventilation device according to the present invention.

[0018] Figure 3 This is a front view schematic diagram of a gas emission ventilation device according to the present invention.

[0019] Figure 4 This is a three-dimensional structural diagram of the adjustable mounting device of this utility model, viewed from below.

[0020] In the diagram: 1. U-shaped mounting bracket A; 2. U-shaped mounting bracket B; 3. Bracket mounting slot; 4. Adjustable mounting device; 5. External air outlet flange; 6. Square air duct; 7. External air inlet flange; 8. Screw fixing block; 9. Metal bracket; 10. Metal fixing sleeve; 11. Motor; 12. Fan blade; 13. Impeller; 14. Metal screw A; 15. Adjustment slide A; 16. U-shaped metal base frame; 17. Adjustment slide B; 18. Metal screw B; 19. Fastening nut; 20. U-shaped sleeve base frame. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] This utility model provides, for example Figure 1-4The illustrated gas exhaust ventilation device includes a square duct 6 and an inlet flange 7 located on the front exterior of the square duct 6. An outlet flange 5 is located on the rear exterior of the square duct 6. Both the inlet flange 7 and the outlet flange 5 are fixedly connected to the square duct 6 by welding. Multiple screw holes are equidistantly arranged inside both the inlet flange 7 and the outlet flange 5. The inlet flange 7 is connected to the inlet pipe via multiple screws, and the outlet flange 5 is connected to the outlet pipe via multiple screws. The inlet flange 7 and the outlet flange 5 provide a standardized connection method between the ventilation device and the inlet and outlet pipes, enabling the device to be easily and quickly connected to different piping systems, improving the device's versatility and applicability, ensuring smooth gas flow in and out of the ventilation device, and guaranteeing the normal operation of the ventilation system. A U-shaped mounting bracket A1 is located on the left side of the bottom center of the square duct 6, and a U-shaped mounting bracket B2 is located on the right side of the bottom center of the square duct 6. The U-shaped mounting brackets A1 and B2... Multiple bracket mounting slots 3 are provided inside the bottom of the bracket B2. A motor 11 is installed inside the center of the square air duct 6. The output shaft of the motor 11 faces forward. A metal fixing sleeve 10 is sleeved and fixed to the outside of the motor 11. Four metal brackets 9 are welded at equal intervals on the circular outer wall of the metal fixing sleeve 10. The four metal brackets 9 are set perpendicular to the inner walls of the top, bottom and left and right ends of the square air duct 6. Screw fixing blocks 8 are welded to the outer ends of the four metal brackets 9. The four screw fixing blocks 8 are attached to the inner walls of the left, right and top and bottom ends of the square air duct 6, and are fixed to the square air duct 6 by multiple screws. This structure can effectively fix the motor 11 and ensure the stability of the motor 11 during operation. The stable fixation of the motor 11 can ensure the smooth rotation of the output shaft of the motor 11, thereby enabling the impeller 13 at the front end of the output shaft of the motor 11 to drive the fan blades 12 to operate stably, providing stable and continuous power for gas exhaust ventilation, and avoiding the impact of ventilation effect due to the shaking or displacement of the motor 11.

[0023] like Figure 1 , Figure 2 and Figure 3As shown, an impeller 13 is fixed to the outer front end of the output shaft of the motor 11. Multiple fan blades 12 are equidistantly arranged on the circular outer wall of the impeller 13. When the impeller 13 drives the fan blades 12 to rotate, the fan blades 12 do not contact the inner wall of the square air duct 6. The fan blades 12 rotate at high speed under the drive of the impeller 13, which can push air to form a directional flow within the square air duct 6, realizing the intake and exhaust of gas. This is a key component for the ventilation device to achieve the gas exhaust ventilation function. A certain gap is maintained between the fan blades 12 and the inner wall of the square air duct 6 to prevent friction between them during operation, reduce wear and energy loss, extend the service life of the device, and also reduce noise generated during operation, improving the stability and reliability of the device. Regarding gas flow, the device... The inlet flange 7 is connected to the inlet pipe, and the outlet flange 5 is connected to the outlet pipe, thus establishing a gas flow path. When the motor 11 starts, the output shaft of the motor 11 drives the front impeller 13 to rotate, and the multiple fan blades 12 on the impeller 13 rotate accordingly. When the fan blades 12 rotate, they push the air to flow inside the square air duct 6, forming a directional flow of gas. Due to the special design of the fan blades 12, they do not contact the inner wall of the square air duct 6 during rotation, which ensures the normal operation of the fan blades 12 and avoids friction loss and possible malfunctions. The gas in the inlet pipe enters the square air duct 6 under the push of the fan blades 12, passes through the internal channel of the air duct, and is discharged from the outlet flange 5 to the outlet pipe, realizing the function of gas exhaust ventilation.

[0024] like Figure 1 and Figure 4As shown, the U-shaped mounting brackets A1 and B2 are connected to the square air duct 6 via multiple adjustable mounting devices 4. These adjustable devices 4 are fixed to the center of the bottom of the square air duct 6 and its front and rear sides. Each adjustable mounting device 4 includes a metal screw A14, an adjustment groove A15, a U-shaped metal base 16, an adjustment groove B17, a metal screw B18, and a U-shaped connecting base 20. The U-shaped connecting base 20 is horizontally positioned at the bottom of the square air duct 6, and its top ends are welded to the bottom left and right ends of the square air duct 6, respectively. The U-shaped opening of the U-shaped connecting base 20 is upward-facing and fitted onto the outside of the top of the U-shaped mounting brackets A1 and B2. This fitting method provides movement space for the two U-shaped mounting brackets while ensuring they are on the same plane and relatively stable. An adjustment groove A15 is located inside the center left side of the U-shaped connecting base 20. The right side is equipped with an adjustment groove B17. Metal screws A14 and B18 are vertically inserted into adjustment grooves A15 and B17 respectively. The top of metal screw A14 is welded to the inner wall of the top of the U-shaped mounting bracket A1, and the top of metal screw B18 is welded to the inner wall of the top of the U-shaped mounting bracket B2. The thickness of the U-shaped mounting brackets A1 and B2 is equal to the opening depth of the U-shaped socket base 20. This ensures the stability and accuracy of the U-shaped mounting brackets when sliding within the U-shaped socket base 20, preventing shaking or displacement. Both U-shaped mounting brackets A1 and B2 can slide left and right within the U-shaped socket base 20. The lengths of adjustment grooves A15 and B17 are less than half the length of the U-shaped socket base 20, limiting the sliding range of the U-shaped mounting brackets and ensuring they move within a reasonable adjustment range, maintaining the overall structural stability of the device.

[0025] like Figure 1 and Figure 4As shown, the adjustable mounting device 4 also includes a fastening nut 19. Both metal screws A14 and B18 are threaded with the fastening nut 19, which is located at the bottom end of the U-shaped socket base 20. The fastening nut 19 can rotate clockwise and counterclockwise, allowing it to move up and down on the outside of metal screws A14 and B18 respectively through the thread action. After loosening the fastening nut 19, the U-shaped mounting bracket A1 can drive metal screw A14 to slide left and right in the adjustment groove A15, and the U-shaped mounting bracket B2 can drive metal screw B18 to slide left and right in the adjustment groove B17. After tightening the fastening nut 19, the top ends of the U-shaped mounting brackets A1 and B2 are firmly clamped between the U-shaped socket base 20 and the bottom end of the square air duct 6. When it is necessary to adjust the position of the U-shaped mounting brackets A1 and B2... Loosen the fastening nut 19. At this time, the constraint of the fastening nut 19 on the metal screw is reduced. The U-shaped mounting bracket A1 can drive the metal screw A14 to slide left and right in the adjustment groove A15, and the U-shaped mounting bracket B2 can drive the metal screw B18 to slide left and right in the adjustment groove B17. Thus, the distance between the two brackets and their positions at the bottom of the square air duct 6 can be flexibly changed according to actual needs. After adjusting to the appropriate position, tighten the fastening nut 19. Through the self-locking action of the thread, the fastening nut 19 moves upward and firmly clamps the top of the U-shaped mounting bracket A1 and the top of the U-shaped mounting bracket B2 between the U-shaped sleeve base frame 20 and the bottom of the square air duct 6, so that the bracket and the square air duct 6 form a stable connection. This ensures that the entire ventilation device is structurally stable and reliable during operation and will not affect the performance of the device due to the loosening of the brackets.

[0026] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A gas exhaust ventilation device, comprising a square duct (6) and an external air inlet flange (7) disposed on the front end of the square duct (6), wherein an external air outlet flange (5) is disposed on the rear end of the square duct (6), characterized in that: The inlet flange (7) and outlet flange (5) are fixedly connected to the square air duct (6) by welding. The inlet flange (7) and outlet flange (5) are provided with multiple screw holes at equal intervals. The inlet flange (7) is connected to the inlet pipe by multiple screws. The outlet flange (5) is connected to the outlet pipe by multiple screws. A U-shaped mounting bracket A (1) is provided on the left side of the bottom center of the square air duct (6). A U-shaped mounting bracket B (2) is provided on the right side of the bottom center of the square air duct (6). The bottom of the U-shaped mounting bracket A (1) and the U-shaped mounting bracket B (2) are provided with multiple bracket mounting slots (3). The U-shaped mounting bracket A (1) and the U-shaped mounting bracket B (2) are connected to the square air duct (6) by multiple adjustable mounting devices (4). The multiple adjustable mounting devices (4) are fixed at the bottom center of the square air duct (6) and its front and rear sides respectively. The adjustable mounting device (4) includes a metal screw A (14), an adjustment slide A (15), a U-shaped metal base (16), an adjustment slide B (17), a metal screw B (18), and a U-shaped sleeve base (20). The U-shaped sleeve base (20) is horizontally arranged at the bottom of the square air duct (6), and the tops of the left and right ends of the U-shaped sleeve base (20) are respectively fixed to the bottom of the left and right ends of the square air duct (6) by welding. The U-shaped sleeve base (20) with its U-shaped opening facing upwards is sleeved on the U-shaped mounting bracket A (1) and the U-shaped mounting bracket B (2). At the top exterior, an adjustment groove A (15) is provided on the left side of the center of the U-shaped socket base (20), and an adjustment groove B (17) is provided on the right side of the center of the U-shaped socket base (20). Metal screws A (14) and B (18) are vertically inserted into the adjustment grooves A (15) and B (17), respectively. The top of the metal screw A (14) is fixed to the inner wall of the top of the U-shaped mounting bracket A (1) by welding, and the top of the metal screw B (18) is fixedly connected to the inner wall of the top of the U-shaped mounting bracket B (2) by welding.

2. The gas exhaust ventilation device according to claim 1, characterized in that: The thickness of the U-shaped mounting bracket A (1) and the U-shaped mounting bracket B (2) is equal to the opening depth of the U-shaped socket base (20), and both the U-shaped mounting bracket A (1) and the U-shaped mounting bracket B (2) can slide left and right inside the U-shaped socket base (20). The length of the adjustment groove A (15) and the adjustment groove B (17) is less than half the length of the U-shaped socket base (20).

3. A gas exhaust ventilation device according to claim 2, characterized in that: The adjustable mounting device (4) also includes a fastening nut (19). The fastening nut (19) is threaded onto the outside of both the metal screw A (14) and the metal screw B (18). The fastening nut (19) is located at the bottom of the U-shaped mounting base (20). The fastening nut (19) can rotate clockwise and counterclockwise and move up and down on the outside of the metal screw A (14) and the metal screw B (18) respectively through the action of the threads.

4. A gas exhaust ventilation device according to claim 3, characterized in that: After the fastening nut (19) is loosened, the U-shaped mounting bracket A (1) can drive the metal screw A (14) to slide left and right in the adjustment groove A (15), and the U-shaped mounting bracket B (2) can drive the metal screw B (18) to slide left and right in the adjustment groove B (17). After the fastening nut (19) is tightened, the top ends of the U-shaped mounting bracket A (1) and the U-shaped mounting bracket B (2) can be firmly clamped between the U-shaped sleeve base frame (20) and the bottom end of the square air duct (6).

5. A gas exhaust ventilation device according to claim 1, characterized in that: A motor (11) is installed inside the center of the square air duct (6). The output shaft of the motor (11) faces forward. A metal fixing sleeve (10) is fixed to the outside of the motor (11). Four metal brackets (9) are welded at equal intervals on the circular outer wall of the metal fixing sleeve (10). The four metal brackets (9) are respectively set perpendicular to the inner walls of the square air duct (6) at the top, bottom and left and right ends.

6. A gas exhaust ventilation device according to claim 5, characterized in that: Each of the four metal brackets (9) has a screw fixing block (8) welded to its outer end. The four screw fixing blocks (8) are respectively attached to the inner walls of the left and right ends and the upper and lower ends of the square air duct (6), and the four screw fixing blocks (8) are fixedly connected to the square air duct (6) by multiple screws.

7. A gas exhaust ventilation device according to claim 6, characterized in that: The output shaft of the motor (11) is fixed with an impeller (13) at the front end. Multiple fan blades (12) are equidistantly arranged on the circular outer wall of the impeller (13). When the impeller (13) drives the fan blades (12) to rotate, the fan blades (12) do not contact the inner wall of the square air duct (6).

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