Bending device for water heater accessories

By using a motor-driven bidirectional worm gear and worm wheel meshing design and a cylinder-driven slide, combined with a replaceable arc-shaped shaping block, the problems of high labor intensity, low accuracy, and cumbersome operation of existing water heating fitting bending devices are solved, achieving efficient and accurate pipe bending and multi-angle adaptation.

CN224010922UActive Publication Date: 2026-03-20ZHANGJIAKOU ZEBANG MECHANICAL & ELECTRICAL EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-24
Publication Date
2026-03-20

AI Technical Summary

Technical Problem

Existing bending devices for plumbing and heating components are labor-intensive, inaccurate, and cumbersome to operate, making it difficult to efficiently adjust bending angles and pipe diameters.

Method used

The design employs a motor-driven bidirectional worm gear and worm wheel meshing connection, combined with a pressure cylinder to push the slide and arc-shaped shaping block, to achieve precise bending and angle adjustment of the pipeline. The replaceable arc-edged shaping block can adapt to different needs.

Benefits of technology

It improves the accuracy and efficiency of pipeline bending, simplifies the operation process, and expands the applicability and adaptability of the device.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224010922U_ABST
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Abstract

A bending device for water heater accessories comprises an operation table. Stand columns are oppositely arranged on the two sides of the operation table. The tops of the two stand columns are connected with a suspended ceiling. Guide rails are oppositely arranged on the two side stand columns; a sliding table is slidably arranged between the two guide rails; two groups of lifting arms are arranged on the sliding table in a relatively rotating manner; the two lifting arms on the same side are arranged in a V shape; a plurality of mounting holes are formed in the lifting arm; a supporting rod is arranged in the mounting hole between the two opposite lifting arms; worm gear teeth are arranged at the lower ends of the lifting arms; a motor is arranged on one side of the sliding table opposite to one group of lifting arms; a motor rotating shaft extends into the sliding table and is rotationally provided with a two-way worm; the spiral directions of the two-way worm from the middle to the two sides are opposite; the two-way worm is in meshed connection with the opposite worm gear teeth; an arc-edge shaping block with an arc-shaped groove is fixedly arranged on the lower side of the suspended ceiling opposite to the sliding table; the operating platform is provided with a pressure cylinder on one side of the hanging bracket; and a T-shaped connecting block is rotationally connected between the lower part of the sliding table and the cylinder head of the pressure cylinder and the operating table.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of water heating installation auxiliary tool, especially relates to a water heating fitting bending device. BACKGROUND

[0002] In the installation and processing of water heating pipe fittings, the bending device is a commonly used auxiliary tool, mainly used for bending straight pipes into specific angles or radians to adapt to complex pipe layout requirements. Compared with the commonly used pipe joint technology, the bending device can avoid pipe cutting and welding, has lower pipe leakage risk after bending, has compact pipe layout, can be customized according to the field requirements, greatly reduces the fluid resistance in the pipe in subsequent use, and is widely applied. The commonly used water heating fitting bending device at present includes a manual bending tool and a hydraulic bending tool. The manual bending tool has high labor intensity, and the bending angle of the pipe depends entirely on the experience of the user, so the accuracy is low. The hydraulic bending tool has high operation difficulty, and the adjustment process is relatively complicated when the bending angle of the required bending pipe is changed, so the bending efficiency is low. SUMMARY

[0003] The utility model aims at providing a water heating fitting bending device to solve the technical problems that the manual bending tool has high labor intensity, the bending angle of the pipe depends entirely on the experience of the user, the accuracy is low, the hydraulic bending tool has high operation difficulty, and the adjustment process is relatively complicated when the bending angle of the required bending pipe is changed, and the bending efficiency is low.

[0004] To achieve the above-mentioned purpose, the specific technical scheme of the utility model of a water heating fitting bending device is as follows:

[0005] A water heating fitting bending device, comprising an operating table, two opposite sides of the operating table are provided with stand columns, the top of the two stand columns is connected and provided with a ceiling, the two stand columns are provided with guide rails opposite to each other, a sliding table is slidably arranged between the two guide rails, two groups of lifting arms are rotatably arranged on the sliding table, the two lifting arms on the same side are arranged in a V shape, a plurality of mounting holes are arranged on the lifting arms, a supporting rod is arranged in the mounting holes between the two opposite lifting arms, a worm gear is arranged at the lower end of the lifting arm, a motor is arranged at a position opposite to one group of lifting arms on one side of the sliding table, a bidirectional worm is rotatably arranged in the sliding table and extends from the rotating shaft of the motor, the spiral directions of the bidirectional worm are opposite to each other from the middle to the two sides, the bidirectional worm and the opposite worm gear are connected in meshing, an arc edge shaping block with an arc-shaped groove is fixedly arranged at a position opposite to the sliding table on the lower side of the ceiling, a pressure cylinder is arranged on one side of the operating table, and a T-shaped connecting block is rotatably connected between the cylinder head of the pressure cylinder, the lower part of the sliding table and the operating table.

[0006] Further, an adjuster is arranged between the pressure cylinder and the operating table, and an adjusting roller is arranged on one side of the adjuster.

[0007] Further, the arc edge shaping block can be replaced with different arc edges and groove sizes according to the use requirements.

[0008] The water heating gas accessory bending device has the following advantages: the cylinder head of the pressing cylinder pushes the connecting block to move, the connecting block pushes the sliding table to slide and move up on the guide rails of the two stand columns, the pipeline placed on the supporting rod is abutted on the arc edge shaping block, the rear pressing rod continuously exerts force, the sliding table is moved up to extrude and fit the pipeline in the arc-shaped groove, the bending work of the pipeline is completed, the pressing cylinder pushes the bent pipeline, the accuracy and control degree of the pipeline bending are higher, the bending degree is larger, the required bending angle can be conveniently set, the bending operation process is simple and convenient, and the bending work efficiency is increased; the motor drives the bidirectional worm to rotate, the bidirectional worm and the worm gear are meshed and connected to drive the lifting arm to rotate and adjust the angle on the sliding table, the bending device can be used for the requirement of different bending angles, the mold does not need to be replaced, different pipeline diameters can be adapted by adjusting the angle of the lifting arm, the application range of the device is increased, the angle of the lifting arm is adjusted by the motor, the operation process is more convenient and the adjustment time is reduced, and the bending work efficiency is increased. BRIEF DESCRIPTION OF DRAWINGS

[0009] Figure 1 It is a whole structure schematic view of the utility model;

[0010] Figure 2 It is a sliding table installation structure schematic view of the utility model;

[0011] Figure 3 It is the utility model Figure 2 It is an A area enlarged schematic view;

[0012] Marking description in the figure: 1, operation table; 2, stand column; 3, ceiling; 4, guide rail; 5, sliding table; 6, lifting arm; 7, mounting hole; 8, supporting rod; 9, worm gear; 10, motor; 11, bidirectional worm; 12, arc edge shaping block; 13, pressing cylinder; 14, connecting block; 15, adjuster; 16, adjusting roller. DETAILED DESCRIPTION

[0013] In order to better understand the purpose, structure and function of the utility model, the utility model water heating gas accessory bending device is further described in detail below in combination with the drawings.

[0014] As Figures 1-3The utility model discloses a water heating gas fitting bending device, including operation platform 1, two sides of operation platform 1 are provided with the stand 2, the top of two stands 2 is connected with the ceiling 3, two stands 2 are provided with the guide rail 4, the sliding setting of two guide rails 4 has the slide 5, two groups of lifting arms 6 are provided with the relative rotation on the slide 5, the V-shaped setting of two lifting arms 6 between same side, be provided with a plurality of mounting hole 7 on lifting arm 6, be provided with the support rod 8 in mounting hole 7 between two lifting arms 6, the lower end of lifting arm 6 is provided with the worm wheel tooth 9, one side of slide 5 is provided with motor 10 relative to a group of lifting arms 6 position, the rotation setting of the extension of motor 10 rotating shaft has two -way worm 11 in slide 5, the opposite spiral direction of two -way worm 11 from the middle to both sides, the meshing connection between two -way worm 11 and relative worm wheel tooth 9, the arc edge sizing block 12 with arc recess is fixedly arranged in the position of the lower side of ceiling 3 relative to slide 5, the cylinder 13 is arranged in the side of the suspension frame of operation platform 1, the T-shaped connecting block 14 is arranged between the lower part of slide 5 and the cylinder head of cylinder 13 and operation platform 1 through the rotation connection.

[0015] Combine Figures 1-3 When using, the pipeline to be bent is placed on the support rod 8 connected by the two opposite lifting arms 6, the cylinder 13 is started, the connecting block 14 is moved by the cylinder head of the cylinder 13, the slide 5 is pushed to slide and move up on the guide rail 4 of the two stands 2 by the connecting block 14, the pipeline placed on the support rod 8 is abutted on the arc edge sizing block 12, the rear pressing rod continuously generates force, the pipeline is extruded and fitted in the arc recess by the upward movement of the slide 5, the bending work of the pipeline is completed, the bent pipeline is pushed by the cylinder 13, the bending accuracy and control degree of the pipeline are higher, the bending force is larger, the required bending angle is convenient to set, and the bending operation process is simple and convenient, the bending work efficiency is increased.

[0016] When the angle or the size of the arc of the bent pipeline needs to be adjusted, the motor 10 is started, the two -way worm 11 is rotated by the motor 10, the lifting arm 6 is rotated and adjusted on the slide 5 by the meshing connection between the two -way worm 11 and the worm wheel tooth 9, because the spiral direction of the two -way worm 11 from the middle to both sides is opposite, the movement direction of the two lifting arms 6 meshing connected with the same two -way worm 11 is opposite, the action of folding or opening of the lifting arm 6 is realized, so that the functions of adjusting the height and the opening angle of the support rod 8 are realized, the bending device can be used for the demand of different bending angles, without replacing the mold, the pipeline of different pipe diameters can be adapted by adjusting the angle of the lifting arm 6, the application range of the device is increased, the angle of the lifting arm 6 is adjusted by the motor 10, the operation process is more convenient and the adjustment time is reduced, the bending work efficiency is increased.

[0017] The adjusting device 15 is provided between the pressing cylinder 13 and the operation table 1; one side of the adjusting device 15 is provided with an adjusting handle 16; by rotating the adjusting handle 16, the position of the adjusting device 15 is adjusted, so that the adjusting device 15 drives the pressing cylinder 13 to move on the operation table 1, the position of the pressing cylinder 13 is adjusted, the pushing stroke distance of the pressing cylinder 13 is adjusted according to the diameter of the pipe to be bent, the adaptability of the device is increased, and the operation is convenient and easy to adjust.

[0018] The arc edge shaping block 12 can be replaced according to the use requirement, different arc edges and groove sizes are replaced, by replacing the arc edge shaping block 12, the adaptability of the device to the pipe to be bent is further increased, the applicability of the device is increased, compared with the commonly used bending tool, the operation difficulty is low, the use range is wide, and the bending work efficiency is increased.

[0019] It can be understood that the utility model is described through some embodiments, and those skilled in the art know that various changes or equivalent replacements can be made to these features and embodiments without departing from the spirit and scope of the utility model.In addition, under the guidance of the utility model, these features and embodiments can be modified to adapt to specific conditions and materials without departing from the spirit and scope of the utility model.Therefore, the utility model is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application belong to the scope protected by the utility model.

Claims

1. A bending device for water heating accessories, characterized in that, Includes an operating table (1); two columns (2) are arranged opposite each other on the operating table (1); a ceiling (3) is connected to the top of the two columns (2); guide rails (4) are arranged opposite each other on the two columns (2); a slide table (5) is slidably arranged between the two guide rails (4); two sets of lifting arms (6) are arranged opposite each other on the slide table (5); the two lifting arms (6) on the same side are arranged in a V shape; multiple mounting holes (7) are provided on the lifting arms (6); a support rod (8) is provided in the mounting hole (7) between the two opposite lifting arms (6); a worm gear (9) is provided at the lower end of the lifting arm (6); a set of opposite groups on one side of the slide table (5) A motor (10) is installed at the lifting arm (6); the motor (10) shaft extends into the slide (5) and is rotatably equipped with a bidirectional worm gear (11); the bidirectional worm gear (11) has opposite spiral directions from the middle to both sides; the bidirectional worm gear (11) is meshed with the corresponding worm gear teeth (9); a curved edge shaping block (12) with an arc groove is fixedly installed on the lower side of the ceiling (3) relative to the slide (5); a pressure cylinder (13) is installed on the side of the operating table (1) on the hanger; a T-shaped connecting block (14) is rotatably connected between the lower part of the slide (5), the cylinder head of the pressure cylinder (13), and the operating table (1).

2. The bending device for water heating accessories according to claim 1, characterized in that, An adjuster (15) is provided between the pressure cylinder (13) and the operating table (1); an adjusting rocker wheel (16) is provided on one side of the adjuster (15).

3. The bending device for water heating accessories according to claim 1, characterized in that, The arc-edge shaping block (12) can be replaced with different arc-edge and groove sizes according to usage requirements.