A heating and plumbing duct installation docking device

Abstract

This invention discloses a heating, ventilation, and air conditioning (HVAC) pipe installation and docking device, relating to the field of pipe installation technology. It includes two symmetrically distributed platforms, two sliding blocks, two sets of screw-driven modules, and two sets of first and second clamping arms. The two platforms are respectively mounted on the two sliding blocks, and the two sliding blocks are respectively assembled and connected to the movable ends of the two sets of screw-driven modules. This invention uses the screw-driven modules to drive the sliding blocks, moving the platforms and the HVAC pipes they carry towards another set of HVAC pipes. When the pipe ends contact, guide cones set on the alignment posts enter the guide sleeves on the other side. The docking of the two guide cones with the two guide sleeves allows for guided docking operations at two points on the outside of the pipes, ensuring that the two pipes to be docked are always in a coaxial state. This avoids docking misalignment caused by pipe movement, jamming, or shaking, effectively improving docking accuracy and enabling the two HVAC pipes to ultimately achieve a precise coaxial docking state.

Description

Technical Field

[0001] This invention relates to the field of pipeline installation technology, and in particular to a connecting device for HVAC pipeline installation. Background Technology

[0002] HVAC ducts are the core component of heating, ventilation, and air conditioning systems. Pipe welding is a crucial step in installation and construction, and precise alignment is essential for ensuring project quality and the safe and stable operation of the system. Specifically, precise alignment is fundamental to ensuring welding quality. If there are misalignments, offsets, or uneven gaps at the pipe joints, defects such as slag inclusions, porosity, incomplete penetration, and deformation will occur during welding, leading to insufficient weld strength. Precise alignment ensures a tight fit between pipe joints, guaranteeing a uniform and full weld, improving the structural strength of the weld joint, and preventing cracking and leakage due to uneven stress during pipe operation. Furthermore, precise alignment of HVAC ducts ensures the operational efficiency of the HVAC system. Misalignment can cause changes in internal pipe diameter and bulges in the pipe wall, increasing resistance to water and air flow, leading to decreased heat exchange efficiency, increased energy consumption, uneven heating, and poor ventilation. Precise alignment keeps the inner wall of the pipe smooth and flat, ensuring smooth media transport and guaranteeing that the HVAC system operates within its design specifications.

[0003] Most existing installation and docking equipment for HVAC ducts uses electric or pneumatic propulsion devices to perform docking operations. However, HVAC ducts are usually quite heavy, and during the docking process, uneven weight distribution can cause them to wobble and get stuck. This can lead to the pipe ends not maintaining a coaxial state after docking, resulting in docking misalignment. Operators need to make repeated adjustments, which not only reduces installation efficiency but also can affect the sealing and stability of the ducts in subsequent use due to docking errors. Summary of the Invention

[0004] To address the aforementioned issues, this application provides a heating, ventilation, and air conditioning (HVAC) duct installation and connection device.

[0005] To achieve the above objectives, this application provides the following technical solution: a heating, ventilation and air conditioning (HVAC) pipe installation and docking equipment, comprising two symmetrically distributed platforms, two sliding blocks, two sets of screw propulsion modules, and two sets of first clamping arms and second clamping arms.

[0006] The two platforms are respectively mounted on two slide blocks, and the two slide blocks are respectively assembled and connected to the movable ends of two sets of screw drive modules. The screw drive modules are used to drive the slide blocks to move along the pipe docking direction.

[0007] Two sets of first clamping arms and second clamping arms are respectively disposed on the front side of the two platforms, and each set of first clamping arms and second clamping arms can rotate in opposite directions to clamp the outside of the pipe to be docked, and can rotate in opposite directions to expand the open space for loading and unloading the pipe to be docked.

[0008] One set of the first clamping arms and the second clamping arms of the two sets are fixed with alignment posts at their free ends, and the other set of the first clamping arms and the second clamping arms of the two sets are fixed with guide sleeves at their free ends. Each alignment post is fixed with a guide cone. When the screw push module drives the slide to move the platform and the HVAC pipes it carries toward the other set of HVAC pipes, the guide cone moves to the inside of the guide sleeve until the two HVAC pipes are connected.

[0009] Furthermore, the outer diameter of the guide cone gradually decreases in the direction away from the first clamping arm, and the inner side of the guide sleeve is provided with multiple circumferentially distributed guide petals. The multiple guide petals surround and form a guide space for the guide cone to be inserted. When the guide cone enters the interior of the guide sleeve, the multiple guide petals can elastically open and then close in the radial direction.

[0010] Furthermore, the front end of each guide flap protrudes towards the central axis of the guide sleeve to form a protrusion, and the guide cone has a recess that matches the protrusion. When the guide cone is inserted into the guide sleeve, the circumferentially distributed protrusions can all be embedded in the recess.

[0011] Furthermore, the rear end of each guide sleeve is provided with multiple circumferentially distributed grooves, and the rear end of each guide petal is equipped with a linkage frame that can move synchronously with it. The linkage frame extends through the groove to the rear of the guide sleeve, and the linkage frame and the inner wall of the groove are connected by a pressure spring.

[0012] The inner side of each groove is equipped with guide posts distributed along the diameter direction of the guide sleeve, the linkage frame is sleeved on the guide posts, and the pressure spring surrounds the outer side of the guide posts.

[0013] Furthermore, each of the linkage frames extending to the rear end of the guide sleeve is equipped with a roller, and each of the rear ends of the guide sleeve is equipped with an adjustable handle. A convex ring frame is fixed on the adjustable handle. The adjustable handle and the convex ring frame are located between multiple circumferentially distributed rollers, and multiple protrusions that are adapted to the rollers are distributed on the outer periphery of the convex ring frame. As the adjustable handle and the convex ring frame are rotated synchronously, the convex ring frame can squeeze multiple rollers and the linkage frame to move synchronously until the guide petal adjusts its opening angle.

[0014] Furthermore, each of the platforms is equipped with an extension frame on its front side. The first clamping arm and the second clamping arm are slidably installed on the front and rear sides inside the extension frame, respectively. Both the first clamping arm and the second clamping arm are distributed along an arc-shaped trajectory, and their rotation centers coincide with the central axis of the HVAC duct.

[0015] Furthermore, both the first and second clamping arms are fixed with toothed sets that are equidistantly distributed along an arc-shaped trajectory on their outer sides. Each of the first clamping arms is provided with a first drive gear that meshes with it. Each of the first drive gears is connected to the platform through a first drive shaft. The portion of the first drive shaft located inside the platform is also equipped with a first linkage wheel.

[0016] Each of the second clamping arms is provided with a second drive gear meshing with it. The second drive gears are coaxially distributed with the first drive gears, and a second linkage gear meshing with them is provided below the second drive gears. The second linkage gears are connected to the platform through a second drive shaft. The portion of the second drive shaft located inside the platform is also equipped with a second linkage wheel. The first linkage wheel and the second linkage wheel are connected by a synchronous belt. The inner side of the platform is equipped with a motor drive assembly for driving the second linkage wheel to rotate.

[0017] Furthermore, each of the platforms is provided with a bracket for supporting HVAC ducts, and a wheel is installed on the bracket. The wheel is used to support and guide the HVAC ducts to roll and move.

[0018] Furthermore, each of the platforms is equipped with a crossbeam, and each end of the crossbeam is fitted with a movable clamping seat. The clamping seats are arranged along the length of the crossbeam, and each clamping seat is provided with a positioning clamping block. The positioning clamping block can move toward or away from the HVAC duct.

[0019] Cylinders are mounted on the front and rear sides of the clamping seat. The output ends of the two cylinders face opposite directions and are connected to the two clamping seats respectively. Two sets of symmetrically distributed guide rails are provided on the crossbeam. A slider that can move synchronously with the clamping seat is provided on the inner side of the clamping seat. When the positioning clamp moves toward or away from the HVAC pipe, the slider moves on the guide rail.

[0020] In summary, the technical effects and advantages of this invention are as follows:

[0021] 1. This invention uses a screw-driven module to drive a slide block, which in turn moves a platform and the HVAC pipes it carries towards another set of HVAC pipes. When the pipe ends contact each other, guide cones mounted on the alignment posts enter the guide sleeves on the other side. The docking of the two guide cones with the two guide sleeves allows for guided docking operations at two points on the outside of the pipes, ultimately aligning the end faces of the two pipes. This ensures that the two pipes to be docked are always coaxial, avoiding docking misalignment caused by pipe movement, jamming, or shaking. This effectively improves docking accuracy, enabling the two HVAC pipes to achieve a precise coaxial docking.

[0022] 2. The present invention has multiple movable guide petals inside the guide sleeve. When the guide cone enters the guide sleeve, it can achieve circumferential locking of the guide cone, keeping the guide cone and the guide sleeve in a coaxial state. This can further eliminate residual radial and angular deviations between the two pipes, keeping the two pipes in a highly coaxial state, further improving the docking stability, and facilitating subsequent welding operations. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram from a first perspective of the present invention.

[0025] Figure 2 This is a schematic diagram of the second perspective structure of the present invention.

[0026] Figure 3 This is a schematic diagram of the platform structure of the present invention, which is equipped with an alignment post and a guide cone.

[0027] Figure 4 This is a schematic diagram of the connection structure between the platform equipped with the alignment post and the guide cone and the first clamping arm and the second clamping arm of the present invention.

[0028] Figure 5 This is a schematic diagram of the platform structure equipped with a guide sleeve according to the present invention.

[0029] Figure 6 This is a schematic diagram of the connection structure between the platform equipped with the guide sleeve and the first clamping arm and the second clamping arm of the present invention.

[0030] Figure 7 For the present invention Figure 6 Enlarged structural diagram at point A in the middle.

[0031] Figure 8 This is a schematic diagram of the clamping unit structure of the present invention mounted on the platform.

[0032] Figure 9 This is a schematic diagram of the guide sleeve of the present invention after being cut open.

[0033] Figure 10 For the present invention Figure 9 Enlarged structural diagram at point B.

[0034] Figure 11 This is a schematic diagram of the structure of the guide sleeve after it has been cut open when the guide sleeve and the guide cone are in the docking state.

[0035] Figure 12 For the present invention Figure 11 Enlarged structural diagram at point C.

[0036] In the diagram: 1. Platform; 11. Bracket; 12. Wheel; 13. Crossbeam; 131. Guide rail; 14. Clamping seat; 141. Slider; 15. Positioning clamp; 16. Cylinder; 17. Extension frame; 2. Slide; 3. Screw drive module; 4. First clamping arm; 41. First drive gear; 42. First drive shaft; 43. First linkage wheel; 5. Second clamping arm; 51. Second drive gear; 52. Second linkage gear; 53. Second drive shaft; 54. Second linkage wheel; 55. Synchronous belt; 56. Motor drive assembly; 6. Alignment post; 7. Guide cone; 71. Recess; 8. Guide sleeve; 81. Guide flap; 82. Protrusion; 83. Linkage frame; 84. Guide post; 85. Pressure spring; 86. Roller; 87. Adjustable handle; 88. Convex ring frame; 89. Groove. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] Example 1: Reference Figure 1 , Figure 2 The HVAC duct installation and docking equipment shown includes two symmetrically distributed platforms 1, two sliding blocks 2, two sets of screw propulsion modules 3, and two sets of first clamping arms 4 and second clamping arms 5.

[0039] Two platforms 1 are respectively mounted on two slide blocks 2, and the two slide blocks 2 are respectively assembled and connected to the movable ends of two sets of lead screw propulsion modules 3. When the servo motor is started, the slide blocks 2 are driven to move axially through the transmission action of the lead screw and lead screw nut pair.

[0040] Two sets of first clamping arms 4 and second clamping arms 5 are respectively disposed on the front side of the two platforms 1. Each set of first clamping arms 4 and second clamping arms 5 can rotate in opposite directions to clamp the outside of the pipe to be docked, and can also rotate in opposite directions to expand the open space for loading and unloading the pipe. In actual use, the first clamping arms 4 and second clamping arms 5 are first controlled to rotate outward in opposite directions to form an opening space larger than the outer diameter of the pipe.

[0041] In actual operation, workers can use hoisting equipment or manual methods to place the pipes to be installed onto the platform 1. After the pipes are placed, the first clamping arm 4 and the second clamping arm 5 rotate inward synchronously and wrap around the outer circumference of the pipes, realizing a circumferential clamping operation on the pipes. Subsequently, the screw drive module 3 is activated, causing one or both slide blocks 2 to move towards the middle simultaneously, thereby driving the two pipes to be connected to gradually approach each other.

[0042] Furthermore, such as Figure 3 - Figure 6 As shown, one set of the first clamping arms 4 and the second clamping arms 5 has an alignment post 6 fixed to its free end, while the other set has a guide sleeve 8 fixed to its free end. Each alignment post 6 has a guide cone 7 fixed to it. When the screw drive module 3 drives the slide block 2 to move the platform 1 and its supported HVAC pipes towards the other set of HVAC pipes, the guide cone 7 on the alignment post 6 preferentially enters the guide sleeve 8 on the other side when the pipe ends contact. The docking of the two guide cones 7 with the two guide sleeves 8 allows for guiding docking operations at two points on the outside of the pipes, ultimately aligning the end faces of the two pipes.

[0043] By guiding and connecting the two guide cones 7 and the two guide sleeves 8, the two pipes to be connected can always be kept in a coaxial state, avoiding the connection offset caused by pipe movement, jamming, or shaking. This can effectively improve the connection accuracy, so that the two HVAC pipes can finally reach a coaxial connection state, providing a stable and reliable positioning foundation for subsequent flange connection or welding operations. This effectively reduces the amount of manual correction work and improves installation efficiency and welding quality.

[0044] Example 2: Based on Example 1, such as Figure 9 - Figure 12 As shown, in this embodiment, the outer diameter of the guide cone 7 gradually decreases in the direction away from the first clamping arm 4. The inner side of the guide sleeve 8 is provided with multiple circumferentially distributed guide petals 81. The multiple guide petals 81 surround and form a guide space for the guide cone 7 to be inserted. When the guide cone 7 enters the interior of the guide sleeve 8, the multiple guide petals 81 can elastically open and then close in the radial direction.

[0045] like Figure 10 , Figure 12As shown, specifically, the front ends of the guide petals 81 all protrude towards the central axis of the guide sleeve 8 to form protrusions 82. The guide cone 7 has recesses 71 that mate with the protrusions 82. When the guide cone 7 enters the guide sleeve 8, the conical surface of the guide cone 7 first contacts the multiple protrusions 82. As the guide cone 7 continues to advance, the protrusions 82 and the guide petals 81 are subjected to radial outward thrust and move outward. When the guide cone 7 is inserted into the guide sleeve 8, the circumferentially distributed protrusions 82 can all be embedded in the recesses 71.

[0046] The rear end of the guide sleeve 8 is provided with multiple circumferentially distributed grooves 89. The rear end of the guide petal 81 is equipped with a linkage frame 83 that can move synchronously with it. The linkage frame 83 extends through the groove 89 to the rear of the guide sleeve 8, and the linkage frame 83 and the inner wall of the groove 89 are connected by a pressure spring 85.

[0047] Guide posts 84, distributed along the diameter of the guide sleeve 8, are installed on the inner side of the groove 89. The linkage frame 83 is sleeved on the guide post 84, and the pressure spring 85 surrounds the outer side of the guide post 84. When the guide cone 7 enters the interior of the guide sleeve 8 and the guide petal 81 is subjected to radial outward thrust and moves outward, the pressure spring 85 is compressed and the linkage frame 83 slides synchronously along the guide post 84.

[0048] like Figure 12 As shown, when the guide cone 7 enters the guide sleeve 8 and the recess 71 on the guide cone 7 corresponds to the protrusion 82, the pressure spring 85 elastically resets, thereby driving the guide flap 81 to automatically reset, and multiple protrusions 82 simultaneously enter the recess 71 to achieve circumferential locking of the guide cone 7.

[0049] Multiple guide flaps 81 circumferentially lock the guide cone 7, keeping the guide cone 7 and guide sleeve 8 always coaxial, avoiding positional displacement due to external forces during the docking process. This can further eliminate residual radial and angular deviations between the two pipes, keeping them highly coaxial and ensuring that the two pipes to be docked always remain precisely coaxial, further improving docking stability and facilitating subsequent welding operations.

[0050] Furthermore, after the welding operation is completed, the welded pipe can be removed. Then, the two platforms 1 and the two sets of first clamping arms 4 and second clamping arms 5 need to be moved and reset to prepare for subsequent pipe installation and docking operations. However, because multiple protrusions 82 are inserted into the recesses 71, when the two sets of first clamping arms 4 and second clamping arms 5 move away from each other, the clamping force is insufficient to expand the multiple guide flaps 81, thus preventing the guide cone 7 from smoothly disengaging from the guide sleeve 8.

[0051] To avoid this situation, in this invention, rollers 86 are installed at one end of the linkage frame 83 extending to the rear end of the guide sleeve 8, and adjustable handles 87 are installed at the rear end of the guide sleeve 8. A convex ring frame 88 is fixed on the adjustable handle 87. The adjustable handle 87 and the convex ring frame 88 are located between multiple circumferentially distributed rollers 86, and multiple protrusions that are adapted to the rollers 86 are distributed on the outer periphery of the convex ring frame 88.

[0052] When welding is completed or equipment needs to be disassembled, after removing the welded pipe, the operator needs to rotate the adjustable handle 87, which drives the convex ring frame 88 to rotate synchronously. The protrusions on the outer periphery of the convex ring frame 88 gradually press against the roller 86. The roller 86 drives the linkage frame 83 to move outward along the guide post 84. The linkage frame 83 compresses the pressure spring 85, causing it to elastically contract, and the guide flap 81 to open outward. When the guide flap 81 is completely disengaged from the recess 71, the guide cone 7 can smoothly exit the guide sleeve 8, achieving quick unlocking and separation. Subsequently, the two platforms 1 can be moved away, at which point the guide cone 7 can quickly disengage from the guide sleeve 8 until the two sets of first clamping arms 4 and second clamping arms 5 separate, ready for subsequent pipe installation and docking operations. The entire process can be completed without additional disassembly tools, offering the advantage of portable operation.

[0053] Example 3: Further, to ensure that the first clamping arm 4 and the second clamping arm 5 can be tightly connected to the pipeline, such as... Figure 6 , Figure 7 As shown, in this invention, an extension frame 17 is installed on the front side of the platform 1. The first clamping arm 4 and the second clamping arm 5 are slidably installed on the front and rear sides inside the extension frame 17, respectively. The first clamping arm 4 and the second clamping arm 5 are distributed along an arc-shaped trajectory, and their rotation centers coincide with the central axis of the HVAC pipe. This ensures that the position of the central axis of the pipe remains unchanged during the rotation and clamping process of the first clamping arm 4 and the second clamping arm 5, thereby improving the clamping accuracy.

[0054] like Figure 6 , Figure 7 As shown, the outer sides of the first clamping arm 4 and the second clamping arm 5 are both fixed with toothed groups that are equidistantly distributed along an arc trajectory. The first clamping arm 4 is provided with a first driving gear 41 that meshes with it. The first driving gear 41 is connected to the platform 1 through the first driving shaft 42. The part of the first driving shaft 42 located inside the platform 1 is also equipped with a first linkage wheel 43.

[0055] Each of the second clamping arms 5 is provided with a second drive gear 51 that meshes with it. The second drive gear 51 is coaxially distributed with the first drive gear 41, and a second linkage gear 52 that meshes with it is provided below the second drive gear 51. The second linkage gear 52 is connected to the platform 1 through the second drive shaft 53. The part of the second drive shaft 53 located inside the platform 1 is also equipped with a second linkage wheel 54. The first linkage wheel 43 and the second linkage wheel 54 are connected by a synchronous belt 55. The inner side of the platform 1 is equipped with a motor drive assembly 56 for driving the second linkage wheel 54 to rotate.

[0056] During the use of the first clamping arm 4 and the second clamping arm 5, when the motor drive assembly 56 is started, it can drive the second linkage wheel 54 to rotate. The second linkage wheel 54 drives the first linkage wheel 43 to rotate synchronously through the synchronous belt 55. The first linkage wheel 43 drives the first drive shaft 42 to rotate. The first drive shaft 42 drives the first drive gear 41 to rotate. The first drive gear 41 meshes with the bottom teeth of the first clamping arm 4, thereby driving the first clamping arm 4 to move along an arc trajectory. At the same time, the second drive gear 51 and the second linkage gear 52 mesh synchronously and drive the second clamping arm 5 to move synchronously in the opposite direction to the first clamping arm 4. Therefore, the first clamping arm 4 and the second clamping arm 5 can achieve synchronous opening and closing movements.

[0057] When loading pipes, the two sets of first clamping arms 4 and second clamping arms 5 rotate in opposite directions, lowering the height of their ends and expanding the open space, which is beneficial for pipe placement. When fixing pipes, the two sets of first clamping arms 4 and second clamping arms 5 rotate in opposite directions and wrap around the outer circumference of the pipe. Since the two sets of first clamping arms 4 and second clamping arms 5 always move synchronously, it can be ensured that the pipe clamping center always coincides with the equipment center, further improving the accuracy of subsequent pipe docking.

[0058] Example 4: Figure 8 As shown, each platform 1 is equipped with a bracket 11 for supporting HVAC ducts. Wheels 12 are mounted on the brackets 11, supporting and guiding the HVAC ducts as they roll. Each platform 1 contains a crossbeam 13, with movable clamping seats 14 mounted at both ends. The clamping seats 14 are arranged along the length of the crossbeam 13, and each clamping seat 14 is equipped with a positioning clamping block 15, which can move towards or away from the HVAC ducts.

[0059] Cylinders 16 are mounted on both the front and rear sides of the clamping base 14. The output ends of the two cylinders 16 face opposite directions and are connected to the two clamping bases 14 respectively. Specifically, after the pipe is hoisted onto the platform 1, it is placed on the wheel support 12 on the bracket 11. The wheel support 12 provides rolling support for the pipe, facilitating subsequent position adjustment. Subsequently, the two sets of cylinders 16 drive the corresponding clamping base 14 to move along the guide rail 131. As the clamping base 14 moves, the positioning clamp 15 gradually approaches the outer wall of the pipe until both positioning clamps 15 simultaneously press against the outer circumference of the pipe. At this point, the pipe is reliably fixed at the center position of the platform 1.

[0060] Two sets of symmetrically distributed guide rails 131 are provided on the crossbeam 13. The inner side of the clamping seat 14 is provided with a slider 141 that can move synchronously with it. When the positioning clamping block 15 moves toward or away from the HVAC pipe, the slider 141 moves on the guide rail 131. Since the slider 141 slides with the guide rail 131, the clamping seat 14 can maintain a stable motion state.

[0061] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. A heating, ventilation, and air conditioning (HVAC) pipe installation and docking equipment, characterized in that: It includes two symmetrically distributed platforms (1), two slide blocks (2), two sets of lead screw propulsion modules (3), and two sets of first clamping arms (4) and second clamping arms (5); The two platforms (1) are respectively installed on the two slides (2), and the two slides (2) are respectively assembled and connected to the movable ends of the two sets of screw propulsion modules (3). The screw propulsion modules (3) are used to drive the slides (2) to move along the pipe docking direction. Two sets of first clamping arms (4) and second clamping arms (5) are respectively set on the front side of two platforms (1), and each set of first clamping arms (4) and second clamping arms (5) can rotate in opposite directions to clamp the outside of the pipe to be docked, and can rotate in opposite directions to expand the open space for loading and unloading the pipe to be docked. One set of the first clamping arm (4) and the second clamping arm (5) of the two sets of first clamping arms (4) and second clamping arms (5) are fixed with alignment posts (6) at their free ends, and the other set of the first clamping arm (4) and the second clamping arm (5) are fixed with guide sleeves (8) at their free ends. Each alignment post (6) is fixed with a guide cone (7). When the screw push module (3) drives the slide (2) to move the platform (1) and the HVAC pipes it carries to another set of HVAC pipes, the guide cone (7) moves to the inside of the guide sleeve (8) until the two HVAC pipes are connected.

2. The HVAC duct installation and docking equipment according to claim 1, characterized in that: The outer diameter of the guide cone (7) gradually decreases in the direction away from the first clamping arm (4). The inner side of the guide sleeve (8) is provided with multiple circumferentially distributed guide petals (81). The multiple guide petals (81) enclose a guide space for the guide cone (7) to be inserted. When the guide cone (7) enters the interior of the guide sleeve (8), the multiple guide petals (81) can elastically open and then close in the radial direction.

3. The HVAC duct installation and docking equipment according to claim 2, characterized in that: The front end of each guide flap (81) protrudes towards the central axis of the guide sleeve (8) to form a protrusion (82). The guide cone (7) has a recess (71) that matches the protrusion (82). When the guide cone (7) is inserted into the guide sleeve (8), the circumferentially distributed protrusions (82) can all be embedded in the recess (71).

4. The HVAC duct installation and docking equipment according to claim 3, characterized in that: The guide sleeve (8) has multiple circumferentially distributed grooves (89) at its closed rear end. The guide petal (81) is equipped with a linkage frame (83) that can move synchronously with it at its rear end. The linkage frame (83) extends through the groove (89) to the rear of the guide sleeve (8). The linkage frame (83) and the inner wall of the groove (89) are connected by a pressure spring (85). The groove (89) is equipped with guide posts (84) distributed along the diameter of the guide sleeve (8), the linkage frame (83) is sleeved on the guide posts (84), and the pressure spring (85) surrounds the outside of the guide posts (84).

5. The HVAC duct installation and docking equipment according to claim 4, characterized in that: Rollers (86) are installed at one end of the linkage frame (83) extending to the rear end of the guide sleeve (8). An adjustable handle (87) is installed at the rear end of the guide sleeve (8). A convex ring frame (88) is fixed on the adjustable handle (87). The adjustable handle (87) and the convex ring frame (88) are located between multiple circumferentially distributed rollers (86). Multiple protrusions that are compatible with the rollers (86) are distributed on the outer periphery of the convex ring frame (88). As the adjustable handle (87) and the convex ring frame (88) rotate synchronously, the convex ring frame (88) can squeeze multiple rollers (86) and the linkage frame (83) to move synchronously until the guide petal (81) adjusts the opening angle.

6. The HVAC duct installation and docking equipment according to claim 1, characterized in that: The platform (1) is equipped with an extension frame (17) on the front side. The first clamping arm (4) and the second clamping arm (5) are slidably installed on the front and rear sides inside the extension frame (17), respectively. The first clamping arm (4) and the second clamping arm (5) are distributed along an arc trajectory, and their rotation centers coincide with the central axis of the HVAC pipe.

7. The HVAC duct installation and docking equipment according to claim 6, characterized in that: The first clamping arm (4) and the second clamping arm (5) are both fixed with toothed groups that are evenly distributed along an arc trajectory. The first clamping arm (4) is provided with a first driving gear (41) meshing with it. The first driving gear (41) is connected to the platform (1) through a first driving shaft (42). The part of the first driving shaft (42) located inside the platform (1) is also equipped with a first linkage wheel (43). Each of the second clamping arms (5) is provided with a second drive gear (51) meshing with it. The second drive gear (51) is coaxially distributed with the first drive gear (41). A second linkage gear (52) meshing with it is provided below the second drive gear (51). The second linkage gear (52) is connected to the platform (1) through the second drive shaft (53). The part of the second drive shaft (53) located inside the platform (1) is also equipped with a second linkage wheel (54). The first linkage wheel (43) and the second linkage wheel (54) are connected by a synchronous belt (55). The inner side of the platform (1) is equipped with a motor drive assembly (56) for driving the second linkage wheel (54) to rotate.

8. The HVAC duct installation and docking equipment according to claim 1, characterized in that: Each of the platforms (1) is provided with a bracket (11) for supporting HVAC pipes. A wheel (12) is installed on the bracket (11) for supporting and guiding the HVAC pipes to roll.

9. The HVAC duct installation and docking equipment according to claim 1, characterized in that: Each of the platforms (1) is equipped with a crossbeam (13), and each of the two ends of the crossbeam (13) is equipped with a movable clamping seat (14). The clamping seat (14) is arranged along the length of the crossbeam (13), and each clamping seat (14) is provided with a positioning clamping block (15). The positioning clamping block (15) can move toward or away from the HVAC pipe. The clamping seat (14) is equipped with cylinders (16) on both the front and rear sides. The output ends of the two cylinders (16) face opposite directions and are connected to the two clamping seats (14) respectively. The crossbeam (13) is provided with two sets of symmetrically distributed guide rails (131). The clamping seat (14) is provided with a slider (141) that can move synchronously with it. When the positioning clamp (15) moves toward or away from the HVAC pipe, the slider (141) moves on the guide rail (131).

Images