Pipe fitting welding tool
By designing a pipe welding tool, and utilizing a combination of a housing, welding components, and a telescopic arm, automatic docking and welding of pipes in high-altitude operations has been achieved. This solves the problems of operational difficulties and burn risks in high-altitude operations, and improves work efficiency and sealing effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- 吕兆贺
- Filing Date
- 2024-04-02
- Publication Date
- 2026-05-12
AI Technical Summary
Existing water pipe connection methods are difficult to operate with both hands during high-altitude work, posing a risk of burns and poor sealing performance. In particular, adhesive and heat fusion connections are prone to failure under the influence of hot and cold water.
Design a pipe welding tool that combines a housing, welding components, and a telescopic arm. It achieves automatic docking and welding of heating plates through a hydraulic lifting rod and a position sensor. Equipped with a control panel and button operation, it frees up the hands and ensures accurate alignment.
It enables automatic docking of pipe fittings during high-altitude operations, improving work efficiency, preventing burns, ensuring sealing effect, and is simple and safe to operate.
Smart Images

Figure CN122008568A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of hot melt tool technology, and in particular to a pipe welding tool. Background Technology
[0002] In bathroom plumbing and electrical installations, water pipes typically require pipe fittings for secure connection. Currently, two common methods are used: adhesive bonding and heat fusion. Adhesive bonding, however, is susceptible to leaks due to the different materials of the adhesive and fittings, leading to varying degrees of expansion and contraction from hot and cold water. Heat fusion, on the other hand, requires precise alignment of the fused portions of the pipe fitting and fitting to ensure a proper seal. Otherwise, leaks and seal failure can occur, or the installation may be tilted, affecting aesthetics and overall appearance. Current installation methods involve workers holding the water pipe in one hand and the fitting in the other, placing them on either side of a heat fusion machine for heating before joining. However, this method is problematic for working at heights, as it prevents simultaneous use of both hands and poses risks of burns.
[0003] Therefore, this invention proposes a pipe welding tool that can automatically connect pipe joints and fittings after welding, eliminating the need for manual connection, making it convenient, safe, labor-saving, and improving work efficiency. Summary of the Invention
[0004] To address the aforementioned shortcomings in the existing technology, this invention provides a pipe welding tool that is easy to operate and readily applicable.
[0005] A pipe welding tool includes a housing, a welding assembly disposed inside the housing, and telescopic arms disposed on both sides of the housing;
[0006] The welding assembly includes a heating plate, with three sets of heating molds of different sizes on both sides of the heating plate, and a hydraulic lifting rod fixed to the bottom of the heating plate, which drives the heating plate to move up and down.
[0007] The bottom of the telescopic arm is a hydraulic telescopic rod one. The telescopic arm is symmetrically fixed on both sides of the housing. The top of the telescopic arm is provided with a clamp for clamping pipe joints or pipe fittings. The bottom of the clamp is a hydraulic telescopic rod two. A pressure sensor is also installed at the bottom of the clamp.
[0008] The top of the housing is provided with an opening for raising and lowering the welding assembly; a position sensor and a controller are provided inside the housing, the position sensor being used to monitor the position of the heating plate; a control panel is provided outside the housing, the control panel having control buttons.
[0009] Preferably, the first hydraulic telescopic rod and the second hydraulic telescopic rod are respectively connected to an electromagnetic relay switch, and the electromagnetic relay switch is electrically connected to the controller.
[0010] Preferably, the heating plate is provided with an electrically conductive guide rail and an electrically conductive carbon brush inside.
[0011] Preferably, the control buttons include button one, button two, button three, and button four;
[0012] Preferably, the button is used to control the raising and lowering of the hydraulic telescopic rod.
[0013] The second button is used to control the extension and retraction of the first hydraulic telescopic rod;
[0014] The third button is used to control the extension and retraction of the hydraulic telescopic rod 2;
[0015] The fourth button is the power button.
[0016] Preferably, the housing is provided with a plug for external connection.
[0017] The beneficial effects of this invention are as follows:
[0018] This invention relates to a pipe welding tool, which combines a housing, welding components, and a telescopic arm. It can automatically raise and lower the heating plate and automatically control the heating and welding of pipes. It is operated by buttons to prevent burns. Especially for workers at heights, it frees up their hands, making it safer, saving time and effort, and improving work efficiency. Attached Figure Description
[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is a perspective view of the present invention;
[0021] Figure 2 This is an internal sectional view of the present invention;
[0022] Figure 3 This is a diagram showing the usage state of the present invention;
[0023] 1-Housing, 11-Position sensor, 12-Control panel, 13-Button 1, 14-Button 2, 15-Button 3, 16-Button 4, 2-Welding assembly, 21-Heating plate, 22-Heating die head, 23-Hydraulic lifting rod, 24-Powered guide rail, 3-Telescopic arm, 31-Hydraulic telescopic rod 1, 32-Clamp, 33-Hydraulic telescopic rod 2, 34-Pressure sensor. Detailed Implementation
[0024] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0025] In the description of the embodiments of the present invention, it should be noted that if terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of the invention is in use, they are only for the convenience of describing the present invention 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, and therefore should not be construed as a limitation of the present invention. Furthermore, terms such as "first," "second," and "third" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0026] Furthermore, the use of terms such as "horizontal," "vertical," and "sag" does not imply that the component must be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0027] In the description of the embodiments of the present invention, "multiple" means at least two.
[0028] In the description of the embodiments of the present invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention according to the specific circumstances.
[0029] As shown in the attached figure, a pipe welding tool includes a housing 1, a welding assembly 2 disposed inside the housing 1, and telescopic arms 3 disposed on both sides of the housing 1.
[0030] The welding assembly 2 includes a heating plate 21, with three sets of heating molds 22 of different sizes on both sides of the heating plate 21. A hydraulic lifting rod 23 is fixed to the bottom of the heating plate 21, and the hydraulic lifting rod 23 drives the heating plate 21 to move up and down. The heating plate 21 is equipped with an electric guide rail 24 and an electric carbon brush inside. The housing 1 is equipped with a plug for external connection.
[0031] The bottom of the telescopic arm 3 is a hydraulic telescopic rod 31. The telescopic arm 3 is symmetrically fixed on both sides of the housing 1. The top of the telescopic arm 3 is provided with a clamp 32 for clamping pipe joints or fittings. The bottom of the clamp 32 is a hydraulic telescopic rod 33. A pressure sensor 34 is also installed at the bottom of the clamp 32. The hydraulic telescopic rod 31 and the hydraulic telescopic rod 33 are respectively connected to an electromagnetic relay switch. The electromagnetic relay switch is electrically connected to the controller.
[0032] The top of the housing 1 is provided with an opening for the lifting and lowering of the welding assembly 2; a position sensor 11 and a controller are provided inside the housing 1, the position sensor 11 is used to monitor the position of the heating plate 21; the pressure sensor 34 and the position sensor 11 are both electrically connected to the controller;
[0033] The exterior of the housing 1 is equipped with a control panel 12, which has control buttons. The control buttons include button 13, button 2 14, button 3 15, and button 4 16; button 13 is used to control the raising and lowering of the hydraulic telescopic rod 31; button 2 14 is used to control the extension and retraction of the hydraulic telescopic rod 31; button 3 15 is used to control the extension and retraction of the hydraulic telescopic rod 33; and button 4 16 is the power button.
[0034] In use, the heating plate is raised to different positions by pressing button one, so that the heating die head 22 to be used is at the same horizontal position as the left and right clamps. The position sensor 11 transmits the detected position information to the controller, which controls the heating plate to rise to the corresponding position. The pipe joint and fitting are placed on the clamps on both sides. The pressure sensor at the bottom of the clamp detects the pressure signal, and the hydraulic telescopic rod two retracts to clamp the pipe fitting. Pressing button two controls the telescopic arm to retract towards the middle, and the pipe joint and fitting are placed on the heating die head for heating. After heating is completed, releasing button two extends the telescopic arm, the lifting plate falls back, and at the same time triggers the controller to retract the telescopic arm again to complete the welding of the pipe joint and joint. After welding is completed, pressing button three extends the hydraulic telescopic rod two and releases the pipe, and the telescopic arm returns to its original position to complete the work.
[0035] This invention provides a pipe welding tool suitable for welding most PPR and PB water pipes on the market. It is easy to operate, provides accurate welding alignment, and frees up your hands. The button operation prevents burns, making it safer, time-saving, labor-saving, and improving work efficiency.
[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A pipe fitting welding tool, characterized in that, It includes a housing (1), a welding assembly (2) disposed inside the housing (1), and telescopic arms (3) disposed on both sides of the housing (1); The welding assembly (2) includes a heating plate (21), and three sets of heating molds (22) of different sizes are provided on both sides of the heating plate (21). A hydraulic lifting rod (23) is fixed at the bottom of the heating plate (21), and the hydraulic lifting rod (23) drives the heating plate (21) to move up and down. The bottom of the telescopic arm (3) is a hydraulic telescopic rod one (31). The telescopic arm (3) is symmetrically fixed on both sides of the housing (1). The top of the telescopic arm (3) is provided with a clamp (32) for clamping pipe joints or pipe fittings. The bottom of the clamp (32) is a hydraulic telescopic rod two (33). A pressure sensor (34) is also installed at the bottom of the clamp (32). The top of the housing (1) is provided with an opening for the lifting and lowering of the welding assembly (2); the housing (1) is provided with a position sensor (11) and a controller, the position sensor (11) is used to monitor the position of the heating plate (21); the exterior of the housing (1) is provided with a control panel (12), the control panel (12) is provided with control buttons.
2. The pipe welding tool according to claim 1, characterized in that: The first hydraulic telescopic rod (31) and the second hydraulic telescopic rod (33) are respectively connected to an electromagnetic relay switch, and the electromagnetic relay switch is electrically connected to the controller.
3. The pipe welding tool according to claim 2, characterized in that: The pressure sensor (34) and the position sensor (11) are both electrically connected to the controller.
4. A pipe welding tool according to claim 3, characterized in that: The heating plate (21) is equipped with an electric guide rail (24) and an electric carbon brush inside.
5. A pipe welding tool according to claim 4, characterized in that: The control buttons include button one (13), button two (14), button three (15) and button four (16).
6. A pipe welding tool according to claim 5, characterized in that: The button (13) is used to control the lifting and lowering of the hydraulic telescopic rod (31); The second button (14) is used to control the extension and retraction of the first hydraulic telescopic rod (31); The third button (15) is used to control the extension and retraction of the second hydraulic telescopic rod (33); Button four (16) is the power button.
7. A pipe welding tool according to claim 1, characterized in that: The housing (1) is provided with a plug for connecting to the outside.