A flue bending device

Abstract

This utility model relates to the field of flue processing and discloses a flue bending device. It includes a base, a plug-in assembly, a bending and flipping assembly, and a lifting and unloading assembly. The top of the base is provided with a positioning seat for inserting and installing a corrugated flue. The plug-in assembly is located above the positioning seat and is suitable for plugging into or disengaging from the end of the corrugated flue away from the positioning seat. The bending and flipping assembly is connected to the plug-in assembly to drive the plug-in assembly to flip and reset, thereby bending the corrugated flue. The lifting and unloading assembly is located on the outer side of the bent portion of the corrugated flue and is mounted on the base, suitable for lifting the bent corrugated flue onto the positioning seat for unloading. This utility model's lifting and unloading assembly automatically unloads the corrugated flue from the positioning seat, improving work efficiency and reducing labor intensity. The unloading process mainly relies on the offset center of gravity and gravity of the corrugated flue, resulting in a simple structure and smooth unloading.

Description

Technical Field

[0001] This utility model relates to the field of flue processing technology, and more specifically, to a flue bending device. Background Technology

[0002] When laying stainless steel flue pipes, the direction may be changed by bending depending on the needs of the pipe routing. Currently, existing flue pipes use a 90-degree bend in the stainless steel corrugated flue pipe to achieve this bending. The corrugated flue pipe has a corrugated section in the middle and straight ends, making it easier for the ends to connect and assemble with the corresponding flue pipes. The corrugated section in the middle acts as a buffer and adapts to the bending angle, thus preventing the flue pipe from cracking or deforming due to excessive bending. Due to the manufacturing process, the outer diameter of the corrugated section is larger than the outer diameter of the straight ends.

[0003] The bending process of corrugated flue pipes mainly involves using a bending device to achieve a 90-degree bend. Existing bending devices are horizontal structures; that is, the corrugated flue pipe needs to be placed horizontally, one end is fixed, and the other end is connected to the bending structure to achieve the bend. In this technology, both the feeding of the corrugated flue pipe and the unloading after bending require manual operation. Workers must first remove the bent flue pipe from the bending device and place it in a collection basket, and then place the flue pipe to be bent back onto the bending device. This repetitive operation results in low efficiency and increases the labor intensity of the workers. Utility Model Content

[0004] To address at least one of the aforementioned problems, this utility model provides a flue bending device, comprising a base, a plug-in assembly, a bending and flipping assembly, and a lifting and unloading assembly. The base has a positioning seat on its top for inserting a corrugated flue. The plug-in assembly is located above the positioning seat and is adapted to plug into or disconnect from the end of the corrugated flue away from the positioning seat. The bending and flipping assembly is connected to the plug-in assembly to drive the plug-in assembly to flip and reset, thereby bending the corrugated flue. The lifting and unloading assembly is located on the outer side of the bent portion of the corrugated flue and is mounted on the base, adapted to push the bent corrugated flue out onto the positioning seat for unloading.

[0005] Optionally, a collection basket is placed on one side of the base, and the lifting and unloading assembly is adapted to lift the bent corrugated flue into the collection basket.

[0006] Optionally, multiple positioning seats are spaced apart, and the number of the plug-in components and the lifting and unloading components are the same as the number of positioning seats, and they correspond one-to-one.

[0007] Optionally, the bending and flipping assembly includes a flipping frame and a flipping drive component. The flipping frame is rotatably connected to the base, and the flipping drive component is connected to the flipping frame to drive the flipping frame to flip. The plug-in assembly is connected to the flipping frame and flips synchronously.

[0008] Optionally, the plug-in assembly includes a positioning plug-in and a telescopic drive. The telescopic drive is fixedly connected to the bending and flipping assembly, and the telescopic drive is connected to the positioning plug-in to drive the positioning plug-in to plug into the corrugated flue, or to drive the positioning plug-in to disengage from the corrugated flue.

[0009] Optionally, the bottom of the positioning connector is provided with a docking ring groove, and the straight cylinder at the top of the corrugated smoke pipe is inserted into the docking ring groove.

[0010] Optionally, the bottom of the positioning connector is provided with an arc-shaped guide surface to facilitate the insertion of the corrugated smoke pipe into the docking ring groove.

[0011] Optionally, the top of the positioning seat is provided with an insertion groove. The diameter of the insertion groove is larger than the outer diameter of the straight cylinder on the corrugated flue, but smaller than the outer diameter of the corrugated section on the corrugated flue. The straight cylinder at one end of the corrugated flue is inserted into the insertion groove.

[0012] Optionally, the lifting and unloading assembly includes a lifting and unloading plate and a lifting drive component. The lifting drive component is connected to the lifting and unloading plate and is used to drive the lifting and unloading plate to rise or fall. The lifting and unloading plate cooperates with the corrugated section of the corrugated flue.

[0013] Optionally, the lifting and unloading plate is located on the outer side of the bend of the corrugated flue. The lifting and unloading plate has a groove on the side near the positioning seat. The outer wall of the positioning seat on the side near the lifting and unloading plate is located in the groove, and the other side protrudes from the groove. Two lifting protrusions are spaced apart on the groove wall. The outer wall of the positioning seat has two mating grooves. Both mating grooves penetrate the top of the positioning seat. The two lifting protrusions are respectively inserted into the two mating grooves. After the corrugated flue is inserted into the insertion groove, the corrugated section of the corrugated flue is located on the top of the two lifting protrusions, so that when the lifting protrusions rise, they push the corrugated flue out of the insertion groove.

[0014] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0015] 1. After the corrugated section is loaded, it is placed vertically. After the corrugated flue is bent, the lifting and unloading component will lift the corrugated flue from the positioning seat, releasing the corrugated flue from the positioning seat. The center of gravity of the bent corrugated flue will shift. Therefore, after the bent corrugated flue is lifted, it will automatically fall from the lifting and unloading component into the collection basket under the action of gravity to complete the unloading. The whole process only requires the worker to insert the corrugated flue into the positioning seat. There is no need for the worker to unload and transport it, which improves work efficiency and reduces labor intensity.

[0016] 2. Multiple positioning seats, plug-in components and lifting components form multiple bending stations, which can bend and process multiple corrugated smoke pipes at a time, thus improving processing efficiency;

[0017] 3. The lifting and unloading component is located on the outside of the bent corrugated pipe. Therefore, the bent corrugated pipe can be more easily flipped after being lifted and fall from the lifting and unloading component into the collection basket. The unloading process mainly relies on the offset center of gravity and gravity of the corrugated pipe. The structure is simple and ingenious, and the unloading is also relatively smooth.

[0018] 4. The lifting protrusion increases the contact area between the lifting plate and the corrugated section, improving stability during lifting. When the lifting protrusion is not raised, it is located in the mating groove, making the corrugated flue pipe more stable after being inserted into the positioning seat, and less prone to shaking due to uneven bottom surface, thereby improving the quality of the corrugated flue pipe after bending. Attached Figure Description

[0019] Figure 1 The structure of the flue bending device in this utility model embodiment Figure 1 ;

[0020] Figure 2 The structure of the flue bending device in this utility model embodiment Figure 2 ;

[0021] Figure 3 This is a structural diagram of the plug-in component and the bending and flipping component in the embodiments of this utility model;

[0022] Figure 4 This is an exploded view of the plug-in assembly in an embodiment of this utility model;

[0023] Figure 5 This is a structural diagram of the plug-in assembly in an embodiment of the present utility model;

[0024] Figure 6 The structure of the positioning seat and the lifting and unloading assembly in the embodiments of this utility model Figure 1 ;

[0025] Figure 7 The structure of the positioning seat and the lifting and unloading assembly in the embodiments of this utility model Figure 2 .

[0026] Explanation of reference numerals in the attached drawings: 1. Base; 11. Positioning seat; 111. Insertion slot; 112. Mating slot; 12. Collection basket; 13. Base plate assembly; 131. Driving gear; 132. Driven gear; 14. Placement plate; 2. Insertion assembly; 21. Positioning insertion piece; 211. Docking ring groove; 212. Arc-shaped guide surface; 22. Telescopic drive component; 3. Bending and flipping assembly; 31. Flipping frame; 32. Flipping drive component; 33. Drive shaft; 4. Lifting and unloading assembly; 41. Lifting and unloading plate; 42. Lifting drive component; 43. Connecting shaft; 44. Groove; 45. Lifting protrusion. Detailed Implementation

[0027] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the following description is provided in conjunction with the appendix. Figure 1-7 This application will be described in further detail.

[0028] The accompanying drawings of this utility model embodiment provide a coordinate system XYZ, where the positive direction of the X-axis represents the right, the negative direction of the X-axis represents the left, the positive direction of the Y-axis represents the front, the negative direction of the Y-axis represents the back, the positive direction of the Z-axis represents the top, and the negative direction of the Z-axis represents the bottom.

[0029] This utility model provides a flue bending device, referring to... Figure 1 and Figure 2 The flue bending device includes a base 1, a plug-in assembly 2, a bending and flipping assembly 3, and a lifting and unloading assembly 4. The base 1 has a positioning seat 11 on its top for inserting and installing the corrugated flue. The plug-in assembly 2 is located above the positioning seat 11, suitable for plugging into or disconnecting the end of the corrugated flue away from the positioning seat 11. The bending and flipping assembly 3 is connected to the plug-in assembly 2 to drive the plug-in assembly 2 to flip and reset, thereby bending the corrugated flue. The lifting and unloading assembly 4 is located on the base 1 and is suitable for ejecting the bent corrugated flue from the positioning seat 11 for unloading. A collection frame 12 is placed on one side of the base 1. After the lifting and unloading assembly 4 lifts the bent corrugated flue from the positioning seat 11, the corrugated flue automatically falls into the collection frame 12, completing the unloading process.

[0030] The corrugated section of the corrugated flue is located in the middle, and both ends of the corrugated flue are circular straight cylinders without corrugated sections. The outer diameter of the corrugated section is larger than the outer diameter of the straight cylinder.

[0031] Reference Figure 1 and Figure 2Multiple positioning seats 11 are spaced apart on the top of the base 1 along the left-right direction. The number of insertion components 2 and lifting and unloading components 4 are the same as the number of positioning seats 11, and they correspond one-to-one. Multiple insertion components 2 are connected to bending and flipping components 3 to achieve synchronous movement. Multiple positioning seats 11, insertion components 2, and lifting components form multiple bending stations, enabling the bending and processing of multiple corrugated smoke pipes at a time, thus improving processing efficiency. In this embodiment, four positioning seats 11 are preferably provided. The following description uses a structure of one positioning seat 11, one insertion component 2, and one lifting and unloading component 4 as an example.

[0032] The positioning seat 11 is welded to the top of the base 1. In another embodiment, the positioning seat 11 can be fixed to the top of the base 1 with bolts. The top of the positioning seat 11 is provided with an insertion groove 111. The straight cylinder at one end of the corrugated flue is inserted into the insertion groove 111. The groove diameter of the insertion groove 111 is larger than the outer diameter of the straight cylinder on the corrugated flue, but smaller than the outer diameter of the corrugated section on the corrugated flue. In this way, the corrugated section on the corrugated flue is not inserted into the insertion groove 111, but is located on the top of the positioning seat 11, thereby positioning the corrugated flue on the base 1.

[0033] Reference Figures 1 to 3 The bending and flipping assembly 3 includes a flipping frame 31 and a flipping drive 32. The flipping frame 31 is a U-shaped frame, rotatably connected to the base 1, and the flipping drive 32 is connected to the flipping frame 31. The insertion assembly 2 is connected to the flipping frame 31 and flips synchronously. After the insertion assembly 2 is inserted into the corrugated pipe, the flipping drive 32 will drive the flipping frame 31 to flip, thereby driving the insertion assembly 2 to bend the corrugated pipe. The degree of flipping of the flipping frame 31 driven by the flipping drive 32 achieves the bending angle of the corrugated pipe. In this embodiment, the corrugated pipe is preferably bent at ninety degrees, and the flipping frame 31 flips to the rear of the base 1, so that the operator can operate from the front of the base 1.

[0034] Two base plate assemblies 13 are symmetrically fixedly mounted on the top of the base 1, and four positioning seats 11 are located between the two base plate assemblies 13. Each base plate assembly 13 is rotatably mounted with a driving gear 131 and a driven gear 132, and the corresponding driving gear 131 and driven gear 132 mesh with each other. The flipping frame 31 is keyed to the gear shafts of the two driven gears 132. When the driving gear 131 rotates, it will drive the driven gear 132 to rotate, which in turn will drive the entire flipping frame 31 to rotate.

[0035] Reference Figures 1 to 3A support platform is placed on the left side of the base 1, and the tilting drive 32 is fixedly installed on the top of the support platform. In this embodiment, the tilting drive 32 is preferably a motor; in another embodiment, the tilting drive 32 can be a cylinder. A metal coupling is keyed to the motor shaft of the motor, and a drive shaft 33 is keyed to the other end of the metal coupling. The drive shaft 33 passes through two base plate assemblies 13 and is rotatably connected to the two base plate assemblies 13. Both drive gears 131 are keyed to the drive shaft 33. Therefore, when the tilting drive 32 drives the drive shaft 33 to rotate, the two drive gears 131 rotate synchronously with the drive shaft 33, thereby driving the tilting frame 31 to tilt.

[0036] Reference Figure 3 and Figure 4 The insertion assembly 2 includes a positioning insertion member 21 and a telescopic drive member 22. Both the telescopic drive member 22 and the positioning insertion member 21 are located above the positioning seat 11. The telescopic drive member 22 is fixedly connected to the flipping frame 31 and is connected to the positioning insertion member 21 to drive the positioning insertion member 21 to insert into the corrugated smoke pipe, or to drive the positioning insertion member 21 to disengage from the corrugated smoke pipe.

[0037] Combination Figure 1 Reference Figure 3 and Figure 4 In this embodiment, the telescopic drive component 22 is preferably a cylinder. The cylinder body is fixedly installed on the top of the top plate of the tilting frame 31 by bolts. The telescopic rod of the cylinder passes through the top plate of the tilting frame 31 and is located at the bottom of the top plate of the tilting frame 31, and is in a cantilevered state. The end of the telescopic rod of the cylinder is provided with a threaded section, which is located at the bottom of the top plate of the tilting frame 31. The top of the connector is provided with a threaded groove, and the threaded section is inserted into the threaded groove and threadedly connected to the connector. Therefore, when the telescopic rod of the cylinder moves, it will drive the connector to move, so that the connector is inserted into the end of the corrugated smoke pipe away from the positioning seat 11 to bend the corrugated smoke pipe; or it can be pulled out from the end of the corrugated smoke pipe away from the positioning seat 11 so that the lifting and unloading assembly 4 can lift the bent corrugated smoke pipe from the positioning seat 11 for unloading.

[0038] A first guide optical axis is bolted to the positioning connector 21, extending upwards. A through hole is provided on the top plate of the flipping frame 31, into which a first optical axis guide sleeve (a common mechanical component, its specific structure is not described in detail) is inserted. The first optical axis guide sleeve is fixedly connected to the flipping frame 31 by bolts. The top of the first guide optical axis is inserted into the first optical axis guide sleeve, and the top of the first guide optical axis protrudes from the first optical axis guide sleeve, located on the top of both the first optical axis guide sleeve and the top plate of the flipping frame 31. The cooperation between the first guide optical axis and the first optical axis guide sleeve enables the cylinder to drive the positioning connector 21 to move stably in a specific direction, while also reducing friction on the first guide optical axis and improving its service life.

[0039] Reference Figures 3 to 5 The bottom of the positioning connector 21 has a docking groove 211. The straight end of the corrugated pipe away from the positioning seat 11 is inserted into the docking groove 211. When the flipping frame 31 rotates, the positioning connector 21 will drive the corrugated pipe to bend. The bottom of the positioning connector 21 also has an arc-shaped guide surface 212. The arc-shaped guide surface 212 is located within the inner diameter of the docking groove 211, and the arc-shaped guide surface 212 protrudes from the docking groove 211 and is exposed to the outside. When the telescopic drive 22 drives the positioning connector 21 to move closer to the corrugated pipe, the arc-shaped guide surface 212 can guide the straight end of the corrugated pipe to be accurately inserted into the docking groove 211. In this embodiment, the arc-shaped guide surface 212 is preferably a hemispherical arc surface.

[0040] Reference Figures 2 to 5 Because the tilting frame 31 tilts backward toward the base 1, the inner side of the bent corrugated pipe is at the rear of the base 1, and the outer side is at the front of the base 1. The lifting and unloading assembly 4 is located on one side of the outer side of the corrugated pipe. After the corrugated pipe bends backward, its center of gravity shifts to the rear. Therefore, after the lifting and unloading assembly 4 lifts the bent corrugated pipe, it will tilt backward and fall off the lifting and unloading assembly 4 due to the shift in the center of gravity. The collection basket 12 is located behind the base 1. Therefore, after the bent corrugated pipe falls from the lifting and unloading assembly 4, it will fall into the collection basket 12 for collection. Because the corrugated pipe itself has a certain thickness, it has high strength. Therefore, when it falls into the collection basket 12, it will not be dented due to impact.

[0041] Combination Figure 2 Reference Figure 6 and Figure 7 The lifting and unloading assembly 4 includes a lifting and unloading plate 41 and a lifting drive component 42. The lifting drive component 42 is connected to the lifting and unloading plate 41 and is used to drive the lifting and unloading plate 41 to rise or fall. The lifting and unloading plate 41 cooperates with the corrugated section of the corrugated flue. By lifting the corrugated section, the corrugated flue is completely pushed out of the insertion slot 111, so that the corrugated flue falls into the collection basket 12 due to the shift in the center of gravity, thus completing the unloading.

[0042] Combination Figure 3 Reference Figure 6 and Figure 7In this embodiment, the preferred lifting drive component 42 is a cylinder. A fixed plate is fixedly installed at the bottom of the base 1, and the cylinder body is located at the bottom of the top plate of the base 1, and is bolted to the fixed plate. The telescopic rod of the cylinder passes through the top plate of the base 1 and is located above the top plate of the base 1, in a cantilevered state. A coupling is sleeved on the top of the cylinder telescopic rod, located on the top of the base 1, and the coupling is fixedly connected to the cylinder telescopic rod by a set screw (i.e., the outer wall of the coupling has a threaded hole that communicates with the inside of the coupling, and the outer wall of the telescopic rod also has a threaded hole, and the set screw is threaded into the threaded hole of the coupling and the telescopic rod) to achieve synchronous lifting. A connecting shaft 43 is inserted into the other end of the coupling, and the connecting shaft 43 is also fixedly connected to the coupling by a set screw, thereby achieving synchronous lifting. The top of the connecting shaft 43 is provided with an external thread, and the bottom of the lifting and unloading plate 41 is provided with a threaded connection hole. The end of the connecting shaft 43 with the external thread is inserted into the threaded connection hole and threadedly connected to the lifting and unloading plate 41. Therefore, when the telescopic rod of the cylinder is raised and lowered, it can drive the connecting shaft 43 and the lifting and unloading plate 41 to be raised and lowered, thus completing the lifting and unloading action of the corrugated flue.

[0043] A second guide optical shaft is bolted to the lifting unloading plate 41. The second guide optical shaft extends downwards and passes through the top plate of the base 1, located below the top plate. A through hole is formed in the top plate of the base 1, into which a second optical shaft guide sleeve is inserted. The second optical shaft guide sleeve is fixedly connected to the top plate of the base 1 by bolts. The second guide optical shaft is inserted into the second optical shaft guide sleeve, with its bottom end protruding from the second optical shaft guide sleeve and located at the top of both the second optical shaft guide sleeve and the top plate of the base 1. The cooperation between the second guide optical shaft and the second optical shaft guide sleeve enables the cylinder to drive the lifting unloading plate 41 to move stably in a directional direction, while also reducing friction on the second guide optical shaft and improving its service life.

[0044] Reference Figure 6 and Figure 7 The lifting and unloading plate 41 has a groove 44 on the side near the positioning seat 11. The groove 44 extends vertically through the lifting and unloading plate 41. The outer wall of the positioning seat 11 on the side (front side) near the lifting and unloading plate 41 is located in the groove 44, but is spaced apart from the groove wall of the groove 44. The other side (rear side) protrudes from the groove 44, so that the corrugated flue pipe has enough space when it is lifted and flipped backward, and will not interfere with the lifting and unloading plate 41.

[0045] Two lifting protrusions 45 are spaced apart on the groove wall of the groove 44. The two lifting protrusions 45 are located on the left and right sides of the corrugated pipe, thereby increasing the contact area between the lifting unloading plate 41 and the corrugated section and improving the stability during lifting. Matching grooves 112 are respectively opened on the left and right sides of the outer wall of the positioning seat 11. Both matching grooves 112 penetrate the top of the positioning seat 11. When the lifting unloading plate 41 is not raised, the two lifting protrusions 45 are inserted into the two matching grooves 112 respectively, without protruding out of the matching grooves 112. After the corrugated pipe is inserted into the insertion groove 111, the corrugated section of the corrugated pipe is located on top of the two lifting protrusions 45. When the lifting protrusions 45 rise, they directly apply a lifting force to the corrugated section of the corrugated pipe, thereby pushing the corrugated pipe out of the insertion groove 111.

[0046] Reference Figure 1 and Figure 3 The corrugated flue is made of stainless steel sheet rolled and welded, thus having a weld seam. When bending the corrugated flue, the weld seam faces backward, making it less noticeable on the inside of the bent flue and improving its aesthetics. A placement plate 14 is fixedly connected to the front of the base 1. Workers can take multiple corrugated flues that need to be bent from the transfer box and place them on the placement plate 14, pre-arranging the direction of the weld seam. When bending is required, the corrugated flue can be directly picked up and inserted into the insertion slot 111.

[0047] Reference Figures 1 to 7 A push-button switch is installed on the top of the base 1. After the corrugated flue is inserted into the insertion slot 111, the operator presses the push-button switch. The control system controls the telescopic drive 22 to drive the positioning insertion piece 21 to descend and connect with the corrugated flue. Then, the control system controls the flip drive 32 to drive the flip frame 31 to flip the insertion assembly 2, causing the corrugated flue to bend. After that, the control system controls the telescopic drive 22 to drive the positioning insertion piece 21 to retract and pull it out of the corrugated flue. Then, the control system controls the lifting drive 42 to drive the lifting unloading plate 41 to rise, pushing the corrugated flue out of the insertion slot 111, completing the unloading. The flip drive 32 drives the flip frame 31 to rotate and reset the insertion assembly 2, and so on.

[0048] The implementation principle of the flue bending device in this application embodiment is as follows: The operator inserts the straight cylinders at one end of four corrugated flues into the four insertion slots 111 respectively. Then, the operator presses the button switch, and the four telescopic drive members 22 drive the four positioning insertion members 21 to descend synchronously. The straight cylinders above the corrugated flues are accurately inserted into the docking ring grooves 211 under the action of the arc-shaped guide surface 212. Then, the flip drive member 32 drives the flip frame 31 to flip the four insertion components 2, so that the corrugated flues are bent. Then, the four telescopic drive members 22 drive the four positioning insertion members 21 to retract synchronously and pull them out of the corrugated flues. The four lifting drive members 42 drive the corresponding lifting and unloading plates 41 to rise. By lifting the corrugated section, the bent corrugated flue is pushed out of the insertion slots 111. Since the center of gravity of the bent corrugated flue is shifted, the bent corrugated flue will automatically flip backward and fall into the collection basket 12.

[0049] Similarly, the components included in the "components," "mechanisms," and "devices" of this disclosure can also be flexibly combined. They can be modularly produced according to actual needs and assembled as an independent module; or they can be assembled separately to form a module in this device. The division of the above-mentioned components in this disclosure is only one embodiment for ease of reading and is not intended to limit the scope of protection of this disclosure. Any technical solution that includes the above-mentioned components and has the same function should be understood as an equivalent technical solution of this disclosure.

[0050] In the description of this disclosure, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" 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 disclosure 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 disclosure.

[0051] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include at least one of that feature. In the description of this disclosure, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0052] In this disclosure, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0053] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0054] It should be noted that when a component is referred to as "fixed to," "set on," "fixed to," or "mounted on" another component, it can be directly on the other component or there may be an intervening component. When a component is considered to be "connected to another component," it can be directly connected to the other component or there may be an intervening component. Furthermore, when a component is considered to be "fixedly connected" to another component, the connection can be detachable or non-detachable, such as through socketing, snap-fitting, integral molding, welding, etc., which are achievable in conventional technologies and will not be elaborated upon here.

[0055] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0056] The above embodiments are merely illustrative of several implementation methods of this disclosure, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the inventive concept of this disclosure, and these modifications and improvements all fall within the protection scope of this disclosure.

Claims

1. A smoke tube bending device characterized by: The device includes a base (1), a plug-in assembly (2), a bending and flipping assembly (3), and a lifting and unloading assembly (4). The base (1) has a positioning seat (11) on its top for inserting and installing a corrugated smoke pipe. The plug-in assembly (2) is located above the positioning seat (11) and is adapted to plug into or disconnect the corrugated smoke pipe from the end away from the positioning seat (11). The bending and flipping assembly (3) is connected to the plug-in assembly (2) to drive the plug-in assembly (2) to flip and reset, thereby bending the corrugated smoke pipe. The lifting and unloading assembly (4) is located on the side outside the bend of the corrugated smoke pipe. The lifting and unloading assembly (4) is mounted on the base (1) and is adapted to push the bent corrugated smoke pipe out of the positioning seat (11) for unloading.

2. A flue bending arrangement according to claim 1, characterised in that: A collection basket (12) is placed on one side of the base (1), and the lifting and unloading assembly (4) is adapted to lift the bent corrugated flue into the collection basket (12).

3. The flue bending apparatus according to claim 1, wherein: The positioning seats (11) are arranged in multiple intervals. The number of the plug-in components (2) and the lifting and unloading components (4) are the same as the number of the positioning seats (11) and correspond one-to-one.

4. The flue bending apparatus according to claim 1, wherein: The bending and flipping assembly (3) includes a flipping frame (31) and a flipping drive (32). The flipping frame (31) is rotatably connected to the base (1). The flipping drive (32) is connected to the flipping frame (31) and is used to drive the flipping frame (31) to flip. The plug-in assembly (2) is connected to the flipping frame (31) and flips synchronously.

5. The flue bending apparatus according to claim 1, wherein: The plug-in assembly (2) includes a positioning plug-in (21) and a telescopic drive (22). The telescopic drive (22) is fixedly connected to the bending and flipping assembly (3), and the telescopic drive (22) is connected to the positioning plug-in (21) to drive the positioning plug-in (21) to plug into the corrugated smoke pipe, or to drive the positioning plug-in (21) to disconnect from the corrugated smoke pipe.

6. A flue bending arrangement according to claim 5, wherein: The bottom of the positioning connector (21) is provided with a docking ring groove (211), and the straight tube at the top of the corrugated smoke pipe is inserted into the docking ring groove (211).

7. The flue bending device according to claim 6, characterized in that: The bottom of the positioning connector (21) is provided with an arc-shaped guide surface (212) to facilitate the insertion of the corrugated smoke pipe into the docking ring groove (211).

8. The flue bending device according to any one of claims 1-7, characterized in that: The top of the positioning seat (11) is provided with a insertion groove (111). The groove diameter of the insertion groove (111) is larger than the outer diameter of the straight cylinder on the corrugated smoke pipe, but smaller than the outer diameter of the corrugated section on the corrugated smoke pipe. The straight cylinder at one end of the corrugated smoke pipe is inserted into the insertion groove (111).

9. The flue bending device according to claim 8, characterized in that: The lifting and unloading assembly (4) includes a lifting and unloading plate (41) and a lifting drive (42). The lifting drive (42) is connected to the lifting and unloading plate (41) and is used to drive the lifting and unloading plate (41) to rise or fall. The lifting and unloading plate (41) cooperates with the corrugated section of the corrugated flue.

10. The flue bending device according to claim 9, characterized in that: The lifting and unloading plate (41) is located on the outer side of the bend in the corrugated flue. The lifting and unloading plate (41) has a groove (44) on the side near the positioning seat (11). The outer wall of the positioning seat (11) on the side near the lifting and unloading plate (41) is located in the groove (44), and the other side protrudes from the groove (44). Two lifting protrusions (45) are spaced apart on the groove wall of the groove (44). The outer wall of the positioning seat (11) has a groove (45) on the groove wall. There are two mating grooves (112), both of which penetrate the top of the positioning seat (11). Two lifting protrusions (45) are respectively inserted into the two mating grooves (112). After the corrugated pipe is inserted into the insertion groove (111), the corrugated section of the corrugated pipe is located at the top of the two lifting protrusions (45), so that when the lifting protrusions (45) rise, they will push the corrugated pipe out of the insertion groove (111).

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