A duster shaping device

Abstract

The utility model discloses a kind of wind tube shaping devices, support table is provided with driving device, the output end of driving device is connected with connecting plate, the other end of connecting plate is evenly distributed with several fixed rods, the other end of fixed rod is connected with movable ring, movable ring is circular hollow structure, its inside is connected with guide rod, movable ring slidingly cooperates in guide rod, the end of guide rod away from movable ring is fixedly connected with fixed seat with angle, fixed seat is connected between movable ring by scissor type lifting mechanism, shaping plate is connected on scissor type lifting mechanism, shaping plate and wind tube inner wall resist, solve the problem of mechanization shaping from wind tube interior, device is inserted into aluminium wind tube, drive by the piston rod of hydraulic cylinder, drive movable ring to slide on guide rod, simultaneously drive scissor type lifting mechanism, and the height of telescopic rod is adjusted synchronously, make arc shaping plate synchronously outwardly eject, recessed wind tube wall is stably, forcibly restored to original state from inside.

Description

Technical Field

[0001] This utility model relates to the field of ventilation duct equipment technology, specifically a ventilation duct shaping device. Background Technology

[0002] Currently, some of the ventilation ducts used in our mine are made of aluminum. In the complex underground environment, these ducts are constantly subjected to the impact of falling rocks from above, which easily leads to plastic deformation such as dents and twists. Once the duct is deformed, the smooth streamlined structure of its inner wall is destroyed, which not only reduces the ventilation cross-sectional area but also significantly increases the airflow friction resistance, resulting in a series of adverse effects: First, the main ventilation fan needs to output higher power to maintain the air volume, directly leading to increased power consumption; second, the overall efficiency of the ventilation system decreases, resulting in insufficient air volume at the working face and affecting safe production; in addition, eddies are easily generated at the deformation points, causing continuous noise and accelerating the vibration fatigue damage of the duct. Currently, the ducts are repaired by personnel knocking on them, but it is difficult for personnel to enter the duct to knock on it, making it difficult to repair the duct. Utility Model Content

[0003] The purpose of this utility model is to provide a ventilation duct shaping device to solve the problem that some ventilation ducts used in our mine are made of aluminum. In the complex underground environment, these ventilation ducts are subjected to the impact of falling rocks from the top for a long time, which can easily cause plastic deformation such as dents and twists in the duct body. Currently, ventilation ducts are repaired by personnel knocking on them, but it is difficult for personnel to enter the inside of the ventilation duct to knock on it, making it difficult to repair the ventilation duct.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a duct shaping device, comprising a support platform, a drive device, a connecting plate, a movable ring, a scissor-type lifting mechanism, and a shaping plate. A driving device is installed on the support platform. The output end of the driving device is connected to a connecting plate. Several fixed rods are evenly distributed on the other end of the connecting plate. The other end of the fixed rods is connected to a movable ring. The movable ring is a circular hollow structure with a guide rod connected inside. The movable ring is slidably fitted to the guide rod. The end of the guide rod away from the movable ring is fixedly connected to a fixed seat at an angle. The fixed seat and the movable ring are connected by a scissor lift mechanism. A shaping plate is connected to the scissor lift mechanism, and the shaping plate abuts against the inner wall of the air duct.

[0005] Preferably, the support platform is a rectangular hollow structure with an upward opening, and a telescopic rod is provided inside. Several through holes are evenly opened on the telescopic rod, and a positioning hole is opened on the support platform at the position corresponding to the through hole. A positioning bolt is provided in the positioning hole to position the height of the telescopic rod.

[0006] Preferably, the driving device is a hydraulic cylinder, with the cylinder body located at the top of the telescopic rod, and the top of the piston rod of the hydraulic cylinder connected to the center point of the connecting plate.

[0007] Preferably, the scissor lift mechanism includes an outer scissor and an inner scissor, which are a pair of spaced-apart support rods. The inner scissor is located inside the outer scissor. The support rods of the inner and outer scissors are hinged in the middle. The bottom ends of the two support rods of the inner scissor are respectively hinged to the end of one side of the fixed seat, and the top ends are hinged to the connecting block at the bottom of the shaping plate. One end of the two support rods of the outer scissor is respectively hinged to a protrusion on the movable ring, and the other end is hinged to the connecting block at the other end of the bottom of the shaping plate.

[0008] Preferably, the end of the shaping plate that contacts the inner wall of the air duct is arc-shaped.

[0009] Preferably, the hydraulic cylinder is connected to the pump station via a pipeline, and a solenoid valve is installed on the pipeline.

[0010] Compared with the prior art, the beneficial effects of this utility model are: This device solves the problem of mechanized shaping from inside the air duct. The device is inserted into the aluminum air duct and driven by the piston rod of the hydraulic cylinder, the movable ring slides on the guide rod. At the same time, it drives the scissor-type lifting mechanism and adjusts the height of the telescopic rod, so that the arc-shaped shaping plate is pushed outward in sync. The concave air duct wall is smoothly and forcibly repaired back to its original shape from the inside, achieving precise restoration "from the inside out". The repaired air duct has good roundness, low ventilation resistance, and significant energy saving and noise reduction effects. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0012] Figure 2 This is a schematic diagram of the scissor lift mechanism of this utility model.

[0013] In the diagram: 1. Support platform; 2. Telescopic rod; 3. Hydraulic cylinder; 4. Connecting plate; 5. Guide rod; 6. Movable ring; 7. Scissor lift mechanism; 8. Shaping plate. Detailed Implementation

[0014] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0015] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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 be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0016] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within 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.

[0017] 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.

[0018] Example 1: Please refer to Figure 1-2 This utility model provides an embodiment of a duct shaping device, comprising a support platform 1, a base serving as a drive device, and an installation platform providing stable support. The contact end between the support platform 1 and the hydraulic cylinder 3 is arc-shaped, with the cylinder body of the hydraulic cylinder 3 embedded within the arc-shaped end. The device also includes a drive device, a connecting plate 4, a movable ring 6, a scissor-type lifting mechanism 7, and a shaping plate 8. A drive device is installed on the support platform 1. The output end of the drive device is connected to a connecting plate 4, which transmits and distributes the linear motion of the piston rod of the hydraulic cylinder 3 to multiple fixed rods. The central driving force is simultaneously and evenly transmitted to the surrounding fixed rods to ensure synchronized action. Several fixed rods are evenly distributed on the other end of the connecting plate 4. The other end of the fixed rods is connected to a movable ring 6, which serves as the drive ring of the scissor lift mechanism 7. It converts the vertical motion of the fixed rods into the retraction action of the inner scissor arms, ensuring that all inner and outer scissors are driven simultaneously and in equal amounts, thereby enabling all shaping plates 8 to expand and shape synchronously. The movable ring 6 is a circular hollow structure with a guide rod 5 connected inside. The movable ring 6 slides in conjunction with the guide rod 5, providing precise guidance and constraint for the movable ring 6, so that it can only slide in a preset direction. To prevent the movable ring 6 from deflecting or jamming during movement and to ensure that the scissor lift mechanism 7 moves along the designed trajectory, a fixed seat is fixedly connected at an angle to the end of the guide rod 5 away from the movable ring 6. The fixed seat and the movable ring 6 are connected through the scissor lift mechanism 7. A shaping plate 8 is connected to the scissor lift mechanism 7, which converts the linear motion of the movable ring 6 into a large-stroke radial expansion motion of the shaping plate 8. Multiple sets of scissor lift mechanisms 7 are evenly distributed around the central axis, enabling synchronous radial expansion. The shaping plate 8 abuts against the inner wall of the air duct. The contact end of the shaping plate 8 with the inner wall of the air duct is arc-shaped, directly contacting the inner wall of the air duct to transmit the corrective force and perform the shaping task. The arc design perfectly fits the inner wall of the air duct, making the force-bearing area large and uniform, avoiding local stress concentration that could lead to air duct damage. The support platform 1 is a rectangular hollow structure with an upward opening. A telescopic rod 2 is installed inside. Several through holes are evenly distributed on the telescopic rod 2. Positioning holes are provided on the support platform 1 at the corresponding positions of the through holes, and positioning bolts are installed in the positioning holes to position the height of the telescopic rod 2. The telescopic rod 2 is used to adjust the working height of the drive device. When the shaping plate 8 is expanded and shaped by the scissor-lift mechanism 7, the position of the connecting plate 4 connected to the drive device changes. Therefore, the height of the drive device needs to be adjusted. Through simple pin-type positioning, it can quickly adapt to maintenance needs at different heights, enhancing the versatility of the device. The driving device is a hydraulic cylinder 3, which is the power source of the entire system. It drives the movable ring 6 to move linearly and can output huge thrust with a small volume, which is enough to cause plastic deformation of the aluminum duct. The hydraulic cylinder 3 in this application is a common hydraulic cylinder 3 on the market. At the same time, how to drive it is the prior art, which will not be described in detail in this application. The cylinder body of the hydraulic cylinder 3 is set at the top of the telescopic rod 2. The top of the piston rod of the hydraulic cylinder 3 is connected to the center point of the connecting plate 4. The scissor lifting mechanism 7 includes an outer scissor and an inner scissor. The outer scissor and the inner scissor are a pair of spaced support rods. The inner scissor is located inside the outer scissor. The middle of the support rods of the inner scissor and the outer scissor are hinged. The bottom ends of the two support rods of the inner scissor are respectively hinged to the end of one side of the fixed seat, and the top ends are hinged to the connecting block at the bottom of the shaping plate 8. One end of the two support rods of the outer scissor is respectively hinged to the protrusion on the movable ring 6, and the other end is hinged to the connecting block at the other end of the bottom of the shaping plate 8. The hydraulic cylinder 3 is connected to the pump station through a pipeline, and a solenoid valve is installed on the pipeline.

[0019] When in use, first insert the device into the air duct, then activate the hydraulic cylinder 3. The piston rod of the hydraulic cylinder 3 extends, simultaneously driving the connecting plate 4 to slide, and synchronously driving the movable ring 6 to slide on the guide rod 5. At the same time, as the device is inserted, the shaping plate 8 at the bottom abuts against the inner wall of the air duct for support. During the sliding of the movable ring 6, the scissor lifting mechanism 7 expands, changing the angle between the outer and inner scissors, and the device is raised in height. At the same time, the height of the hydraulic cylinder 3 is manually adjusted. When the central axis of the guide rod 5 is aligned with the central axis of the air duct, the positioning bolt is inserted. Then, the piston rod of the hydraulic cylinder 3 is continuously extended, and the arc-shaped end of the shaping plate 8 shapes the inner wall of the air duct.

[0020] The above description is merely an embodiment of this utility model, and common knowledge regarding specific structures and characteristics is not described in detail here. It will be apparent to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this utility model is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A duct shaping device, characterized in that: It includes a support platform (1), a drive unit, a connecting plate (4), a movable ring (6), a scissor lift mechanism (7), and a shaping plate (8). A drive device is provided on the support platform (1). The output end of the drive device is connected to a connecting plate (4). Several fixed rods are evenly distributed on the other end of the connecting plate (4). The other end of the fixed rod is connected to a movable ring (6). The movable ring (6) is a circular hollow structure with a guide rod (5) connected inside. The movable ring (6) is slidably fitted to the guide rod (5). The end of the guide rod (5) away from the movable ring (6) is fixedly connected to a fixed seat at an angle. The fixed seat and the movable ring (6) are connected through a scissor lift mechanism (7). A shaping plate (8) is connected to the scissor lift mechanism (7). The shaping plate (8) abuts against the inner wall of the air duct.

2. The duct shaping device according to claim 1, characterized in that: The support platform (1) is a rectangular hollow structure with an upward opening. A telescopic rod (2) is installed inside. Several through holes are evenly opened on the telescopic rod (2). A positioning hole is opened on the support platform (1) at the position corresponding to the through hole. A positioning bolt is installed in the positioning hole to position the height of the telescopic rod (2).

3. The duct shaping device according to claim 1, characterized in that: The driving device is a hydraulic cylinder (3), the cylinder body of the hydraulic cylinder (3) is located at the top of the telescopic rod (2), and the top of the piston rod of the hydraulic cylinder (3) is connected to the center point of the connecting plate (4).

4. The duct shaping device according to claim 1, characterized in that: The scissor lift mechanism (7) includes an outer scissor and an inner scissor. The outer scissor and the inner scissor are a pair of spaced support rods. The inner scissor is located inside the outer scissor. The support rods corresponding to the inner and outer scissors are hinged in the middle. The bottom ends of the two support rods of the inner scissor are respectively hinged to the end of one side of the fixed seat, and the top ends are hinged to the connecting block at the bottom of the shaping plate (8). One end of the two support rods of the outer scissor is respectively hinged to the protrusion on the movable ring (6), and the other end is hinged to the connecting block at the other end of the bottom of the shaping plate (8).

5. The duct shaping device according to claim 1, characterized in that: The shaping plate (8) is arc-shaped at the contact end with the inner wall of the air duct.

6. The duct shaping device according to claim 3, characterized in that: The hydraulic cylinder (3) is connected to the pump station through a pipeline, and a solenoid valve is installed on the pipeline.

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