Ventilation pipeline valve structure

Abstract

The utility model discloses a ventilation pipeline valve structure which comprises a pipe body, an installation frame is fixedly connected to the upper surface of the pipe body, a driving mechanism is installed in the installation frame, a sealing mechanism is installed in the pipe body, and the sealing mechanism comprises a first rotating rod. Through the cooperation among the pipe body, the driving mechanism and the sealing mechanism, the positive and negative motor is started through an external control switch, and the first rotating rod is driven to rotate under the cooperation of the second rotating rod, the worm and the worm gear, so that the fixing rod and the sealing plate are driven to rotate with the first rotating rod as the axis; the opening and closing angle of the sealing plate depends on the rotation direction and the duration of the forward and reverse motor controlled by the external control switch, so that the opening degree of the ventilation pipeline valve can be accurately adjusted, and accurate control over the air volume is achieved. And when the sealing plate is closed, the spring in the mounting groove is compressed to push the sealing strip to be tightly attached to the inner wall of the pipe body. Effective sealing is formed, and the sealing performance when the valve is closed is improved.

Description

Technical Field

[0001] This utility model relates to the field of pipeline valve technology, and in particular to a ventilation duct valve structure. Background Technology

[0002] In modern building design, ventilation systems play a vital role, especially in high-rise buildings, underground buildings, and other types of public buildings. As a core control component in the fluid transport system, ventilation duct valves are not only used to isolate ventilation ducts, but also play an important role in regulating air volume.

[0003] However, existing ventilation duct valve structures have significant drawbacks in use. Due to their simple sealing design, the sealing plate cannot fit tightly against the duct body when closed, often resulting in poor sealing and air leakage. Furthermore, traditional valves cannot precisely adjust the opening and closing angle of the sealing plate according to actual needs when regulating airflow, thus failing to achieve accurate control of airflow. To address these issues, we provide a ventilation duct valve structure that solves these problems. Utility Model Content

[0004] The problem this invention aims to solve is to provide a ventilation duct valve structure that can precisely adjust the opening and closing angle of the sealing plate and effectively increase the sealing performance when the sealing plate is closed.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a ventilation duct valve structure, including a pipe body, an installation frame fixedly connected to the upper surface of the pipe body, a drive mechanism installed inside the installation frame, a sealing mechanism installed inside the pipe body, the sealing mechanism including a rotating rod, the rotating rod being rotatably connected inside the pipe body, the upper end of the rotating rod passing through the inner top wall of the pipe body and extending into the interior of the installation frame, and the drive mechanism including a worm gear, the worm gear being fixedly connected to the upper end of the rotating rod.

[0006] Preferably, in the above-mentioned ventilation duct valve structure, a forward and reverse motor is fixedly connected inside the mounting frame, a rotating rod two is fixedly connected to the output end of the forward and reverse motor, the left end of the rotating rod two is rotatably connected to the inner wall of the mounting frame, and a worm gear is fixedly connected to the surface of the rotating rod two, the worm gear meshing with a worm wheel.

[0007] Preferably, in the above-mentioned ventilation duct valve structure, a fixing rod is fixedly connected to the surface of the rotating rod, a sealing plate is fixedly connected to the side surface of the fixing rod, and multiple reinforcing ribs are fixedly connected to the left and right sides of the fixing rod, and all of the multiple reinforcing ribs are fixedly connected to the sealing plate.

[0008] Preferably, in the above-mentioned ventilation duct valve structure, the sealing plate has mounting grooves on both the left and right sides, and multiple springs are fixedly connected inside each of the two mounting grooves. A sealing strip is provided inside each of the two mounting grooves, and the sealing strip is fixedly connected to the multiple springs.

[0009] Preferably, in the above-mentioned ventilation duct valve structure, the inside of the pipe body has two sealing grooves, and an extension pipe is slidably connected inside each of the two sealing grooves. The ends of the two extension pipes that are far apart are located on the front and rear sides of the pipe body, respectively, and a flange is fixedly connected to the ends of the two extension pipes that are far apart.

[0010] Preferably, in the above-mentioned ventilation duct valve structure, two fixing blocks are fixedly connected to the upper surface of the pipe body, and studs are threaded into the interior of both fixing blocks, and the extension pipe is fixedly connected to the pipe body through the studs.

[0011] The advantages and beneficial effects of this utility model are:

[0012] This invention utilizes the cooperation between the pipe body, drive mechanism, and sealing mechanism. An external control switch activates the forward and reverse motors, which, in conjunction with the rotating rod, worm gear, and worm wheel, drive the rotating rod to rotate. This, in turn, causes the fixed rod and sealing plate to rotate around the rotating rod. The opening and closing angle of the sealing plate depends on the direction and duration of rotation of the forward and reverse motors controlled by the external control switch. This allows for precise adjustment of the ventilation duct valve opening, achieving accurate control of airflow. When the sealing plate closes, the spring in the mounting groove is compressed, pushing the sealing strip to tightly adhere to the inner wall of the pipe, forming an effective seal and improving the sealing performance when the valve is closed.

[0013] This invention utilizes the cooperation between the sealing groove, the extension tube, the fixing block, and the stud. When the installation length of the pipe body needs to be adjusted, the extension tube can be slid along the sealing groove until the required length is reached. Then, by turning the stud inside the fixing block, the extension tube is firmly fixed to the pipe body. This design allows the overall length of the pipe body structure to be adjusted according to installation requirements, improving the flexibility and adaptability of the valve structure. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural schematic diagram of the present invention in cross-section;

[0015] Figure 2 This is a three-dimensional structural schematic diagram of the present invention;

[0016] Figure 3 This is a three-dimensional structural schematic diagram of the drive mechanism and sealing mechanism of this utility model in cross-section.

[0017] Figure 4 yes Figure 3 Enlarged structural diagram at point A in the middle.

[0018] In the diagram: 1. Pipe body; 2. Mounting frame; 3. Drive mechanism; 301. Forward and reverse motor; 302. Rotating rod two; 303. Worm gear; 304. Worm wheel; 4. Sealing mechanism; 401. Rotating rod one; 402. Fixed rod; 403. Sealing plate; 404. Reinforcing rib; 405. Mounting groove; 406. Spring; 407. Sealing strip; 5. Sealing groove; 6. Extension pipe; 7. Fixing block; 8. Stud; 9. Flange. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0020] like Figures 1 to 4 As shown, a ventilation duct valve structure includes a pipe body 1, an mounting frame 2 fixedly connected to the upper surface of the pipe body 1, a drive mechanism 3 installed inside the mounting frame 2, and a sealing mechanism 4 installed inside the pipe body 1. The sealing mechanism 4 includes a rotating rod 401, which is rotatably connected inside the pipe body 1. The upper end of the rotating rod 401 passes through the inner top wall of the pipe body 1 and extends into the interior of the mounting frame 2. The drive mechanism 3 includes a worm gear 304, which is fixedly connected to the upper end of the rotating rod 401.

[0021] The operation of the drive mechanism 3 is controlled by an external control switch. The drive mechanism 3 is installed inside the mounting frame 2, and the sealing mechanism 4 is installed inside the pipe body 1. The operation of the drive mechanism 3 can drive the sealing mechanism 4 to open or close inside the pipe body 1. The rotating rod 401 is rotatably connected to the inner wall of the pipe body 1. The upper end of the rotating rod 401 passes through the inner top wall of the pipe body 1 and extends into the interior of the mounting frame 2. The upper end of the rotating rod 401 is fixedly connected to the worm gear 304 in the drive mechanism 3.

[0022] A forward and reverse motor 301 is fixedly connected inside the mounting frame 2. A rotating rod 302 is fixedly connected to the output end of the forward and reverse motor 301. The left end of the rotating rod 302 is rotatably connected to the inner wall of the mounting frame 2. A worm gear 303 is fixedly connected to the surface of the rotating rod 302. The worm gear 303 meshes with a worm wheel 304.

[0023] When the forward and reverse motor 301 is started by an external control switch, the rotating rod 302 fixedly connected to its output end begins to rotate. The worm 303 fixed on the surface of the rotating rod 302 rotates accordingly. The worm wheel 304 meshing with the worm 303 rotates due to the rotation of the worm 303. The worm wheel 304 is fixedly connected to the upper end of the rotating rod 401, so the rotating rod 401 also rotates accordingly.

[0024] A fixing rod 402 is fixedly connected to the surface of the rotating rod 401. A sealing plate 403 is fixedly connected to the side surface of the fixing rod 402. Multiple reinforcing ribs 404 are fixedly connected to the left and right sides of the fixing rod 402. All the reinforcing ribs 404 are fixedly connected to the sealing plate 403.

[0025] As the rotating rod 401 rotates, the fixed rod 402 and the sealing plate 403 fixed on its surface begin to rotate around the rotating rod 401. The opening and closing angle of the sealing plate 403 depends on the rotation direction and duration of the forward and reverse motors 301, thereby enabling precise adjustment of the opening degree of the ventilation duct valve. There are multiple reinforcing ribs 404, which are symmetrically distributed on the left and right sides of the fixed rod 402. The setting of the reinforcing ribs 404 significantly enhances the connection strength between the sealing plate 403 and the fixed rod 402, and helps to prevent the sealing plate 403 from deforming or being damaged when subjected to wind pressure or other external forces.

[0026] The sealing plate 403 has mounting grooves 405 on both the left and right sides. Multiple springs 406 are fixedly connected inside the two mounting grooves 405. A sealing strip 407 is provided inside the two mounting grooves 405. The sealing strip 407 is fixedly connected to the multiple springs 406.

[0027] Multiple springs 406 are equidistantly distributed inside the mounting groove 405. The sealing strip 407 can retract into the mounting groove 405 by the action of the springs 406. When the sealing plate 403 is in the closed state, the springs 406 in the mounting groove 405 are compressed, pushing the sealing strip 407 to fit tightly against the inner wall of the pipe body 1, forming an effective seal and effectively improving the sealing performance when the sealing plate 403 is closed.

[0028] The pipe body 1 has two sealing grooves 5 inside, and extension pipes 6 are slidably connected inside the two sealing grooves 5. The ends of the two extension pipes 6 that are far apart are located on the front and rear sides of the pipe body 1, respectively. The ends of the two extension pipes 6 that are far apart are fixedly connected to flanges 9.

[0029] Two sealing grooves 5 are symmetrically distributed at both ends inside the pipe body 1. Two extension pipes 6 are slidably connected inside the two sealing grooves 5. By sliding the extension pipes 6 along the sealing grooves 5, the installation length of the pipe body 1 can be adjusted as needed. The flange 9 makes the structure easy to install quickly with external pipelines.

[0030] Two fixing blocks 7 are fixedly connected to the upper surface of the tube body 1. Both fixing blocks 7 are threaded with studs 8 inside, and the extension tube 6 is fixedly connected to the tube body 1 through the studs 8.

[0031] The two fixing blocks 7 correspond to the positions of the two extension tubes 6 respectively. The studs 8 connected by the internal threads of the fixing blocks 7 pass through the upper surface of the tube body 1 and extend into the interior of the tube body 1. By turning the studs 8 inside the fixing blocks 7, the extension tubes 6 and the tube body 1 can be firmly fixed together.

[0032] Working principle: In use, the extension pipe 6 is slid outward along the sealing groove 5 to the outside of the pipe body 1. The overall length of the pipe body 1 is adjusted according to the installation requirements. Then, the extension pipe 6 is firmly fixed to the pipe body 1 by turning the stud 8 inside the fixing block 7. The structure is quickly installed with the external pipeline through the flange 9. The forward and reverse motor 301 is started by the external control switch. With the cooperation of the rotating rod 302, the worm gear 303 and the worm wheel 304, the rotating rod 401 can be rotated. This drives the fixing rod 402 and the sealing plate 403 to rotate around the rotating rod 401. The opening and closing angle of the sealing plate 403 depends on the rotation direction and duration of the forward and reverse motor 301 controlled by the external control switch. When the sealing plate 403 is closed, the spring 406 in the mounting groove 405 is compressed, pushing the sealing strip 407 to fit tightly against the inner wall of the pipe body 1, thus forming an effective seal.

[0033] In the description of this utility model, it should be understood that the terms "upper," "lower," "left," and "right," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or a specific orientational structure and operation. Therefore, they should not be construed as limitations on this utility model. Furthermore, "first" and "second" are only for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "multiple" means two or more.

[0034] It should be noted that all standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, which will not be described in detail here.

[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A valve structure for a ventilation duct, characterized in that: The device includes a tube body (1), a mounting frame (2) is fixedly connected to the upper surface of the tube body (1), a drive mechanism (3) is installed inside the mounting frame (2), a sealing mechanism (4) is installed inside the tube body (1), the sealing mechanism (4) includes a rotating rod (401), the rotating rod (401) is rotatably connected to the inside of the tube body (1), the upper end of the rotating rod (401) passes through the inner top wall of the tube body (1) and extends into the inside of the mounting frame (2), and the drive mechanism (3) includes a worm gear (304), the worm gear (304) is fixedly connected to the upper end of the rotating rod (401).

2. The ventilation duct valve structure according to claim 1, characterized in that: A forward and reverse motor (301) is fixedly connected inside the mounting frame (2). A rotating rod (302) is fixedly connected to the output end of the forward and reverse motor (301). The left end of the rotating rod (302) is rotatably connected to the inner wall of the mounting frame (2). A worm (303) is fixedly connected to the surface of the rotating rod (302). The worm (303) meshes with a worm wheel (304).

3. The ventilation duct valve structure according to claim 1, characterized in that: A fixing rod (402) is fixedly connected to the surface of the rotating rod (401), and a sealing plate (403) is fixedly connected to the side surface of the fixing rod (402). A plurality of reinforcing ribs (404) are fixedly connected to the left and right sides of the fixing rod (402), and the plurality of reinforcing ribs (404) are fixedly connected to the sealing plate (403).

4. The ventilation duct valve structure according to claim 3, characterized in that: The sealing plate (403) has mounting grooves (405) on both the left and right sides. Multiple springs (406) are fixedly connected inside the two mounting grooves (405). A sealing strip (407) is provided inside the two mounting grooves (405). The sealing strip (407) is fixedly connected to the multiple springs (406).

5. The ventilation duct valve structure according to claim 1, characterized in that: The pipe body (1) has two sealing grooves (5) inside. The two sealing grooves (5) are slidably connected to extension pipes (6). The ends of the two extension pipes (6) that are far apart are located on the front and rear sides of the pipe body (1), respectively. The ends of the two extension pipes (6) that are far apart are fixedly connected to flanges (9).

6. The ventilation duct valve structure according to claim 5, characterized in that: Two fixing blocks (7) are fixedly connected to the upper surface of the tube body (1). The two fixing blocks (7) are threaded with studs (8) inside, and the extension tube (6) is fixedly connected to the tube body (1) through the studs (8).

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