A heating, ventilation and air conditioning pipe bending and shearing device

By designing a HVAC bend cutting device with support, fixing, and cutting components, the problem of difficulty in fixing traditional devices is solved, achieving stable fixing and precise cutting of HVAC bends, reducing the risk of manual operation, and suitable for HVAC bends of various bends and diameters.

CN224463798UActive Publication Date: 2026-07-07WEIFANG HENGSHENG ENERGY SAVING TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WEIFANG HENGSHENG ENERGY SAVING TECHNOLOGY CO LTD
Filing Date
2025-07-31
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

Traditional HVAC bend shearing devices are difficult to use to secure HVAC bends, which can cause movement during shearing and affect the cutting results. Furthermore, the need for manual movement of the bends poses a safety risk.

Method used

A HVAC bend cutting device was designed, comprising a support component, a fixing component, and a cutting component. The device utilizes components such as an electric push rod, an adjusting motor, and a hydraulic cylinder to achieve the fixing and precise cutting of HVAC bends, reducing manual operation.

Benefits of technology

It achieves stable fixing of HVAC bends, avoids movement during shearing, reduces the safety risks of manual operation, and is suitable for HVAC bends of different curvatures and diameters.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of heating and ventilation elbow pipe shearing devices, the utility model relates to heating and ventilation elbow pipe processing equipment technical field, including base, the both sides of base top are equipped with support assembly, support assembly is connected with base by adjusting mechanism, the both sides of support assembly are equipped with fixed component, support plate is equipped between two support assemblies, the bottom surface of support plate is connected with base by hydraulic cylinder one, the top of support plate is equipped with cutting assembly, cutting assembly is connected with base by U-shaped frame. When the device is used, the cooperation of the support assembly and the fixed component can fix the heating and ventilation elbow pipe, avoid the movement of the heating and ventilation elbow pipe during shearing, and affect the shearing effect. The cutting assembly can shear the heating and ventilation elbow pipe, move the position of the cutting knife to shear different positions of the heating and ventilation elbow pipe, and does not need to manually move the heating and ventilation elbow pipe, reducing the danger to the staff.
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Description

Technical Field

[0001] This utility model relates to the technical field of HVAC pipe bending equipment, specifically to an HVAC pipe shearing device. Background Technology

[0002] Heating, ventilation, and air conditioning (HVAC) is a category of building equipment work, encompassing heating, ventilation, and air conditioning. HVAC systems ensure indoor temperature, supply and exhaust air into and out of rooms, regulate indoor temperature and humidity, and provide sufficient fresh air to improve the quality of the living environment. HVAC system installation requires multiple pipes. Because the pipes are laid in a loop, HVAC bends are needed at room corners to connect two pipe sections. At this point, the HVAC bends need to be cut according to the spacing between the two pipe sections, typically requiring a cutting device.

[0003] Traditional shearing devices have the following problems:

[0004] 1. It is inconvenient to fix the HVAC bends, making them prone to movement during cutting and affecting the cutting effect;

[0005] 2. When cutting HVAC bends at different locations, the bends need to be moved manually, which poses a certain danger to the workers. Utility Model Content

[0006] The purpose of this invention is to provide a shearing device for HVAC bends to address the shortcomings of existing technologies.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a heating, ventilation and air conditioning (HVAC) pipe bending shearing device, including a base, with support components on both sides above the base, the support components being connected to the base via an adjustment mechanism, fixing components on both sides of the support components, a support plate between the two support components, the bottom surface of the support plate being connected to the base via a hydraulic cylinder, and a cutting component above the support plate, the cutting component being connected to the base via a U-shaped frame.

[0008] As described above, the HVAC bend shearing device includes a support assembly comprising a movable plate, an electric push rod, and a support base. The front and rear sides of the bottom surface of the movable plate are connected to the adjustment mechanism via the electric push rod. The support base is fixedly installed on the top surface of the movable plate. The top surface of the support base is arc-shaped. Fixing components are provided on both sides of the support base, and the fixing components are fixedly connected to the top surface of the movable plate.

[0009] As described above, the HVAC bend shearing device includes an adjusting mechanism comprising an adjusting motor, a lead screw, and a guide rod. The adjusting motor is fixedly installed at the front of one side of the base. Two strip-shaped grooves are formed on the top surface of the base. A lead screw is rotatably installed in the front strip-shaped groove. The output shaft of the adjusting motor passes through the base and is rotatably connected to the base. The output shaft of the adjusting motor is fixedly connected to one end of the lead screw. Both ends of the lead screw are threadedly connected to threaded sleeves with opposite directions of rotation. A guide rod is fixedly installed in the rear strip-shaped groove. Both ends of the guide rod are slidably equipped with movable sleeves. The movable sleeves are connected to the electric push rod, and the threaded sleeves are connected to the electric push rod through support rods.

[0010] As described above, a HVAC bend shearing device includes a fixing assembly comprising an L-shaped plate, a fixing clamp, and a trapezoidal block. L-shaped plates are fixedly installed on both the front and rear sides of the top surface of the moving plate. The trapezoidal block is fixedly connected to the L-shaped plate via a hydraulic cylinder. A fixing clamp is provided on one side of the trapezoidal block, cooperating with a support base. A fixing sleeve is provided on one side of the fixing clamp, and the fixing sleeve is fixedly connected to the moving plate via a connecting rod. A horizontal bar is slidably installed inside the fixing sleeve, with one end fixedly connected to the corresponding fixing clamp and the other end fixedly installed with a T-shaped block. One side of the trapezoidal block is inclined, and a T-shaped groove is formed on the inclined surface. A corresponding T-shaped groove is slidably installed within the trapezoidal block. A fixing sleeve is provided below the trapezoidal block, and the fixing sleeve is fixedly connected to the L-shaped plate via a fixing rod. A T-shaped rod passes through the fixing sleeve, with its upper end passing through and moving along it. The upper end of the T-shaped rod is fixedly connected to the trapezoidal block.

[0011] As described above, the HVAC bend shearing device includes a moving motor, a lead screw, and a threaded sleeve. The moving motor is fixedly installed on the upper side of one side of the U-shaped frame, and the lead screw is rotatably installed on the upper side inside the U-shaped frame. One end of the lead screw is fixedly connected to the output shaft of the moving motor. A vertical rod is fixedly installed on the top surface of the threaded sleeve, and the threaded sleeve is threadedly connected to the lead screw. The upper end of the vertical rod is slidably connected to the U-shaped frame. A cutting motor is provided below the threaded sleeve, and a cutting blade is fixedly installed on the output shaft of the cutting motor. The cutting motor and the threaded sleeve are fixedly connected by a cylinder.

[0012] Compared with the prior art, the beneficial effects of this utility model are: when this device is in use, the HVAC bend can be fixed by the cooperation of the support component and the fixing component, so as to prevent the HVAC bend from moving easily during the cutting process and affecting the cutting effect.

[0013] The cutting assembly can cut HVAC bends, and the position of the cutting blade can be moved to make it easier to cut different parts of the HVAC bend without the need for manual movement of the HVAC bend, thus reducing the danger to workers.

[0014] The position and height between the two fixed components can be adjusted by adjusting the motor, making it suitable for HVAC bends with different curvatures and increasing the applicability of this device. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 arts Figure 1 An enlarged view of the A-direction view;

[0018] Figure 3 for Figure 1 View B.

[0019] Reference numerals: 1-Base, 2-Support assembly, 21-Moving plate, 22-Electric push rod, 23-Support seat, 3-Adjusting mechanism, 31-Adjusting motor, 32-Lead screw, 33-Guide rod, 34-Strip groove, 35-Moving sleeve, 36-Threaded sleeve, 37-Support rod, 4-Fixing assembly, 41-L-shaped plate, 42-Fixing clamp, 43-Trapezoidal block, 44-Hydraulic cylinder II, 45-Horizontal bar, 46-Fixing sleeve I, 47-T-shaped block, 48-T-shaped slide, 49-Fixing sleeve II, 410-Fixing rod, 411-T-shaped rod, 412-Connecting rod, 5-Support plate, 6-Hydraulic cylinder I, 7-Cutting assembly, 71-Moving motor, 72-Lead screw, 73-Threaded sleeve, 74-Vertical rod, 75-Cutting motor, 76-Cutting blade, 77-Cylinder, 8-U-shaped frame. Detailed Implementation

[0020] 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.

[0021] like Figures 1 to 3As shown in the figure, this embodiment discloses a HVAC bend shearing device, including a base 1. Support components 2 are provided on both sides of the base 1. The support components 2 include a movable plate 21, an electric push rod 22, and a support seat 23. The front and rear sides of the bottom surface of the movable plate 21 are connected to the adjustment mechanism 3 through the electric push rod 22. The support seat 23 is fixedly installed on the top surface of the movable plate 21. The top surface of the support seat 23 is arc-shaped. Fixing components 4 are provided on both sides of the support seat 23. The fixing components 4 are fixedly connected to the top surface of the movable plate 21. The HVAC bend to be sheared is placed on the top surface of the support seat 23. When the electric push rod 22 is activated, the telescopic end of the electric push rod 22 can drive the support seat 23 to move up and down through the movable plate 21, so that the support seat 23 cooperates with the fixing components 4, thereby achieving the fixation of the HVAC bend.

[0022] The support assembly 2 is connected to the base 1 via an adjustment mechanism 3. The adjustment mechanism 3 includes an adjustment motor 31, a lead screw 32, and a guide rod 33. The adjustment motor 31 is fixedly installed on the front side of the base 1. Two strip-shaped grooves 34 are formed on the top surface of the base 1. A lead screw 32 is rotatably installed in the front strip-shaped groove 34. The output shaft of the adjustment motor 31 passes through the base 1 and is rotatably connected to the base 1. The output shaft of the adjustment motor 31 is fixedly connected to one end of the lead screw 32. Both ends of the lead screw 32 are threadedly connected to threaded sleeves 36, with the two threaded sleeves 36 rotating in opposite directions. The guide rod 33 is fixedly installed in the rear strip-shaped groove 34. 3. Both ends of the guide rod 33 are slidably equipped with movable sleeves 35. The movable sleeves 35 are connected to the electric push rod 22, and the screw sleeves 36 are connected to the electric push rod 22 through the support rod 37. When the adjusting motor 31 works, the output shaft of the adjusting motor 31 drives the lead screw 32 to rotate. The rotation of the lead screw 32 can drive the screw sleeve 36 to move. The screw sleeve 36 can drive the support assembly 2 to move through the electric push rod 22. The movable sleeves 35 can support and guide the support assembly 2 along the guide rod 33, thereby adjusting the distance between the two support assemblies 2, and thus supporting HVAC bends with different curvatures.

[0023] Both sides of the support component 2 are provided with fixing components 4. The fixing components 4 include L-shaped plates 41, fixing clamps 42, and trapezoidal blocks 43. L-shaped plates 41 are fixedly installed on the front and rear sides of the top surface of the movable plate 21. The trapezoidal blocks 43 are fixedly connected to the L-shaped plates 41 by hydraulic cylinder 44. A fixing clamp 42 is provided on one side of the trapezoidal block 43. The fixing clamp 42 cooperates with the support base 23. A fixing sleeve 46 is provided on one side of the fixing clamp 42. The fixing sleeve 46 is fixedly connected to the movable plate 21 by connecting rod 412. A crossbar 45 is slidably installed in the fixing sleeve 46. One end of the crossbar 45 is fixedly connected to the corresponding fixing clamp 42. A T-shaped block 47 is fixedly installed on the other end of the crossbar 45. One side of the trapezoidal block 43 is an inclined surface. T-shaped slide groove 48, with sliding arrangement in the corresponding T-shaped slide groove 48. A fixed sleeve 49 is provided below the trapezoidal block 43. The fixed sleeve 49 is fixedly connected to the L-shaped plate 41 by a fixed rod 410. A T-shaped rod 411 passes through the fixed sleeve 49. The upper end of the T-shaped rod 411 passes through the fixed sleeve 49 and can move along the fixed sleeve 49. The upper end of the T-shaped rod 411 is fixedly connected to the trapezoidal block 43. When the hydraulic cylinder 44 is working, the telescopic end of the hydraulic cylinder 44 drives the trapezoidal block 43 to move up and down. The movement of the T-shaped block 47 along the fixed sleeve 49 can guide the trapezoidal block 43. The movement of the trapezoidal block 43 along the T-shaped slide groove 48 via the T-shaped rod 411 can drive the crossbar 45 to move back and forth. The crossbar 45 can drive the crossbar 45 to move back and forth.

[0024] A support plate 5 is provided between the two support components 2. The bottom surface of the support plate 5 is connected to the base 1 via a hydraulic cylinder 6. A cutting component 7 is provided above the support plate 5. The cutting component 7 includes a moving motor 71, a lead screw 72, and a threaded sleeve 73. The moving motor 71 is fixedly installed on the upper side of one side of the U-shaped frame 8. The lead screw 72 is rotatably installed on the upper side inside the U-shaped frame 8. One end of the lead screw 72 is fixedly connected to the output shaft of the moving motor 71. A vertical rod 74 is fixedly installed on the top surface of the threaded sleeve 73. The threaded sleeve 73 is threadedly connected to the lead screw 72. The upper end of the vertical rod 74 is slidably connected to the U-shaped frame 8. A cutting motor 75 is provided below the threaded sleeve 73. A cutting blade 76 is fixedly installed on the output shaft of the cutting motor 75. The cutting motor 75 communicates with the threaded sleeve 73. The cylinder 77 is fixedly connected, and the moving motor 71 works. The output shaft of the moving motor 71 drives the lead screw 72 to rotate. The rotation of the lead screw 72 can drive the threaded sleeve 73 to move. The threaded sleeve 73 drives the cutting motor 75 and the cutting blade 76 to move through the cylinder 77, so that different positions of the HVAC bend can be cut. The upper end of the vertical rod 74 is slidably connected to the U-shaped frame 8, which can guide the threaded sleeve 73. When the cylinder 77 works, the telescopic end of the cylinder 77 can adjust the height of the cutting motor 75 and the cutting blade 76, so that HVAC bends of different diameters can be cut. When the cutting motor 75 works, the output shaft of the cutting motor 75 drives the cutting blade 76 to rotate, and the cutting blade 76 can cut the HVAC bend.

[0025] The cutting component 7 is connected to the base 1 via a U-shaped frame 8.

[0026] The hydraulic cylinders and pneumatic cylinders in this application are all equipped with a power source, and the power source is a conventional setting in the relevant field, which can be completed by technicians based on existing technology.

[0027] Working principle:

[0028] When the regulating motor 31 operates, its output shaft drives the lead screw 32 to rotate. The rotation of the lead screw 32 moves the threaded sleeve 36, which in turn moves the support assembly 2 via the electric push rod 22. The moving sleeve 35, along the guide rod 33, supports and guides the support assembly 2, allowing adjustment of the distance between the two support assemblies 2. This enables support for HVAC bends of varying curvatures. The HVAC bend to be cut is placed on the top surface of the support base 23. The electric push rod 22 operates, its extension end moving up and down via the moving plate 21, engaging the support base 23 with the fixing assembly 4 to fix the HVAC bend. The hydraulic cylinder 44 operates, its extension end moving the trapezoidal block 43 up and down. The T-block 47 moves along the fixing sleeve 49, supporting the trapezoidal block 43. The trapezoidal block 43, acting as a guide, moves along the T-shaped groove 48 via the T-shaped rod 411, which in turn moves the crossbar 45 back and forth. The crossbar 45, in turn, moves the moving motor 71. The output shaft of the moving motor 71 drives the lead screw 72 to rotate. The rotation of the lead screw 72 drives the threaded sleeve 73 to move. The threaded sleeve 73, via the cylinder 77, drives the cutting motor 75 and the cutting blade 76 to move, thus enabling the cutting of HVAC bends at different locations. The upper end of the vertical rod 74 is slidably connected to the U-shaped frame 8, which guides the threaded sleeve 73. The cylinder 77, when in operation, adjusts the height of the cutting motor 75 and the cutting blade 76, thus enabling the cutting of HVAC bends of different diameters. The cutting motor 75, when in operation, drives the cutting blade 76 to rotate via its output shaft, thus enabling the cutting of HVAC bends.

[0029] It should be noted that the above embodiments are only specific and clear descriptions of the technical solutions and features of this application. Solutions or features that are prior art or common knowledge to those skilled in the art will not be described in detail in the above embodiments.

[0030] Furthermore, the technical solutions of this application are not limited to the above embodiments. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A shearing device for HVAC bends, characterized in that: Includes a base (1), with support components (2) on both sides above the base (1). The support components (2) are connected to the base (1) through an adjustment mechanism (3). Fixing components (4) are provided on both sides of the support components (2). A support plate (5) is provided between the two support components (2). The bottom surface of the support plate (5) is connected to the base (1) through a hydraulic cylinder (6). A cutting component (7) is provided above the support plate (5). The cutting component (7) is connected to the base (1) through a U-shaped frame (8).

2. The HVAC bend shearing device according to claim 1, characterized in that: The support assembly (2) includes a movable plate (21), an electric push rod (22), and a support base (23). The front and rear sides of the bottom surface of the movable plate (21) are connected to the adjustment mechanism (3) through the electric push rod (22). The support base (23) is fixedly installed on the top surface of the movable plate (21). The top surface of the support base (23) is arc-shaped. Fixing components (4) are provided on both sides of the support base (23). The fixing components (4) are fixedly connected to the top surface of the movable plate (21).

3. The HVAC bend shearing device according to claim 1, characterized in that: The adjustment mechanism (3) includes an adjustment motor (31), a lead screw (32), and a guide rod (33). The adjustment motor (31) is fixedly installed in front of one side of the base (1). Two strip grooves (34) are opened on the top surface of the base (1). A lead screw (32) is rotatably installed in the front strip groove (34). The output shaft of the adjustment motor (31) passes through the base (1) and is rotatably connected to the base (1). The output shaft of the adjustment motor (31) is fixedly connected to one end of the lead screw (32). Both ends of the lead screw (32) are threadedly connected to the threaded sleeves (36). The two threaded sleeves (36) have opposite rotation directions. The guide rod (33) is fixedly installed in the rear strip groove (34). Both ends of the guide rod (33) are slidably provided with movable sleeves (35). The movable sleeves (35) are connected to the electric push rod (22), and the threaded sleeves (36) are connected to the electric push rod (22) through the support rod (37).

4. The HVAC bend shearing device according to claim 1, characterized in that: The fixing component (4) includes an L-shaped plate (41), a fixing clamp (42), and a trapezoidal block (43). The L-shaped plate (41) is fixedly installed on both the front and rear sides of the top surface of the movable plate (21). The trapezoidal block (43) is fixedly connected to the L-shaped plate (41) through a hydraulic cylinder (44). A fixing clamp (42) is provided on one side of the trapezoidal block (43). The fixing clamp (42) cooperates with the support base (23). A fixing sleeve (46) is provided on one side of the fixing clamp (42). The fixing sleeve (46) is fixedly connected to the movable plate (21) through a connecting rod (412). A crossbar (45) is slidably arranged inside the fixing sleeve (46). One end of the crossbar (45) is connected to the corresponding... The fixed clamp (42) is fixedly connected, and the other end of the crossbar (45) is fixedly installed with a T-shaped block (47). One side of the trapezoidal block (43) is inclined, and a T-shaped groove (48) is opened on the inclined surface of the trapezoidal block (43). A sliding setting is opened in the corresponding T-shaped groove (48). A fixed sleeve (49) is provided below the trapezoidal block (43). The fixed sleeve (49) and the L-shaped plate (41) are fixedly connected by a fixed rod (410). A T-shaped rod (411) passes through the fixed sleeve (49). The upper end of the T-shaped rod (411) passes through the fixed sleeve (49) and can move along the fixed sleeve (49). The upper end of the T-shaped rod (411) is fixedly connected to the trapezoidal block (43).

5. The HVAC bend shearing device according to claim 1, characterized in that: The cutting assembly (7) includes a moving motor (71), a lead screw (72), and a threaded sleeve (73). The moving motor (71) is fixedly installed on the upper side of one side of the U-shaped frame (8). The lead screw (72) is rotatably installed on the upper side inside the U-shaped frame (8). One end of the lead screw (72) is fixedly connected to the output shaft of the moving motor (71). A vertical rod (74) is fixedly installed on the top surface of the threaded sleeve (73). The threaded sleeve (73) is threadedly connected to the lead screw (72). The upper end of the vertical rod (74) is slidably connected to the U-shaped frame (8). A cutting motor (75) is provided below the threaded sleeve (73). A cutting blade (76) is fixedly installed on the output shaft of the cutting motor (75). The cutting motor (75) and the threaded sleeve (73) are fixedly connected by a cylinder (77).