quick-connect coupling structure for electromechanical pipelines in complex working conditions
The quick-connect joint structure with built-in heating element and hot melt adhesive solves the installation problem of electromechanical pipeline joints in confined spaces under complex working conditions, achieving efficient hot melt connection and improving installation efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN AIDE ZHONGCHUANG CONSTR ENG CO LTD
- Filing Date
- 2025-09-01
- Publication Date
- 2026-06-30
AI Technical Summary
Existing electromechanical pipeline joints are difficult to install efficiently in confined spaces under complex working conditions. Traditional hot-melt connections require external hot-melt machines, which increases the difficulty of installation.
The quick-connector structure with built-in heating elements and hot melt adhesive provides energy for hot melt connection through the energy input line, reducing the dependence on external hot melters. The hot melt adhesive is quickly heated by nickel-chromium alloy or iron-chromium-aluminum alloy heating elements to form a sealed adhesive layer.
It enables efficient connection and installation of pipes and joints in confined spaces, reducing installation difficulty and improving installation efficiency.
Smart Images

Figure CN224433680U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of pipeline joint technology, specifically relating to the structure of quick-connect joints for electromechanical pipelines in complex working conditions. Background Technology
[0002] In existing electromechanical pipeline connections, heat fusion is commonly used to seal and fix the pipes and joints. Traditional heat fusion connections rely on an external pipe heat fusion machine, which heats and melts the pipe ends or joint interfaces before quickly connecting and fixing them together.
[0003] However, in complex working conditions (such as building mezzanines, densely equipped areas, underground working spaces, and narrow high-altitude passages), external heat fusion devices are large in size and require a certain amount of space for operation. It is difficult to operate the heat fusion device in a narrow space, which increases the difficulty of connecting pipes and joints and reduces the efficiency of connecting pipes and joints in narrow spaces. Utility Model Content
[0004] The purpose of this utility model is to provide a quick-connect coupling structure for electromechanical pipelines in complex working conditions. It can reduce the space requirement for operating the pipe heat fusion device during coupling installation, making it suitable for use in confined spaces in complex working conditions. It reduces the difficulty of connecting pipes and couplings in confined spaces and improves the efficiency of connecting pipes and couplings in confined spaces.
[0005] The specific technical solution adopted by this utility model is as follows:
[0006] A quick-connector structure for electromechanical pipelines in complex working conditions includes a connecting pipe, both ends of which are fixedly connected to sleeves. A hot melt adhesive and a heating element for heating the hot melt adhesive are fixedly connected inside the sleeves. An energy input line is fixedly connected to the outside of the sleeves, and the energy input line is connected to the heating element.
[0007] Furthermore, the energy input line includes a conductive block and a connecting wire. The conductive block is fixedly connected to the sleeve and is electrically connected to the heating element. The connecting wire can be electrically connected to the conductive block.
[0008] Furthermore, an outer tube located outside the conductive block one is fixedly connected to the outer side of the sleeve, and a threaded cap is fixedly connected to the outer side of the end of the connecting wire. The threaded cap is detachably fixedly connected to the outer side of the outer tube, and a conductive block two that can abut against the conductive block one is fixedly connected inside the threaded cap. The conductive block two and the connecting wire are electrically connected.
[0009] Furthermore, the outer side of the hot melt adhesive is threaded with an annular cap, and the inner side of the annular cap is fixedly connected with a pressure block that can slide along the axis of the hot melt adhesive inside the hot melt adhesive.
[0010] Furthermore, the pressure block may have an inclined surface on the side near the hot melt adhesive.
[0011] The technical effects achieved by this utility model are as follows:
[0012] This utility model's quick-connect joint structure for complex working conditions allows the pipe body to be installed inside the sleeve for connection first, and then the sleeve and pipe body are heat-fused together using hot-melt adhesive. This method of assembly followed by heat fusion connection eliminates the need for a pipe heat fusion machine to heat-melt the joint or pipe, thereby reducing the space required for operating the pipe heat fusion machine during joint installation. It is suitable for use in confined spaces under complex working conditions, reducing the difficulty of connecting pipes and joints in confined spaces and improving the efficiency of connecting pipes and joints in confined spaces. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of this utility model;
[0014] Figure 2 This is a cross-sectional structural diagram of the present invention;
[0015] Figure 3 This is a utility model Figure 1 Sectional side view at point A;
[0016] Figure 4 This is a utility model Figure 3 A magnified view of a section at point B.
[0017] The attached diagram lists the components represented by each number as follows:
[0018] 1. Connecting pipe; 2. Sleeve; 3. Hot melt adhesive; 4. Heating element; 5. Outer pipe; 6. Conductive block one; 7. Threaded cap; 8. Conductive block two; 9. Connecting wire; 10. Ring cap; 11. Pressure block; 12. Inclined surface; 13. Pipe body. Detailed Implementation
[0019] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.
[0020] like Figures 1-4As shown, the quick-connect structure for electromechanical pipelines in complex working conditions includes a connecting pipe 1, with sleeves 2 fixedly connected to both ends of the connecting pipe 1. A hot melt adhesive 3 and a heating element 4 for heating the hot melt adhesive 3 are fixedly connected inside the sleeve 2. The heating element 4 is fixedly connected to the outside or inside of the hot melt adhesive 3. In this technical solution, it is preferred that the heating element 4 is fixedly connected to the inside of the hot melt adhesive 3. An energy input line is fixedly connected to the outside of the sleeve 2, and the energy input line is connected to the heating element 4.
[0021] When installing the joint, the ends of the two pipe bodies 13 are respectively inserted into the inside of the two sleeves 2. The ends of the pipe bodies 13 are located inside the hot melt adhesive 3, and the outer diameter of the ends of the pipe bodies 13 and the inner diameter of the hot melt adhesive 3 are fitted with a clearance. After the pipe bodies 13 are installed inside the sleeves 2, energy including electrical energy or thermal energy is input to the heating element 4 through the energy input line, so that the heating element 4 begins to transfer heat energy to the hot melt adhesive 3 and heats the hot melt adhesive 3. When the hot melt adhesive 3 is melted, the sleeve 2 can be hot melt bonded to the outside of the pipe body 13 through the hot melt adhesive 3. During the installation process, it is not necessary to use a pipe hot melter to heat melt the joint or pipe, thereby reducing the space requirement for operating the pipe hot melter when installing the joint. It is suitable for use in confined spaces under complex working conditions, reducing the difficulty of connecting pipe 1 and joint installation in confined spaces, and improving the efficiency of connecting pipe 1 and joint installation in confined spaces.
[0022] Preferably, the energy input line is connected to an external power source to input electrical energy into the heating element 4, causing the heating element 4 to heat up. After the heating element 4 is connected to the power source, it can release a large amount of heat energy into the interior of the hot melt adhesive 3, thereby melting the hot melt adhesive 3.
[0023] Among them, the heating element 4 uses resistance heating materials such as nickel-chromium alloy or iron-chromium-aluminum alloy, which have good conductivity and heating efficiency, and can quickly convert electrical energy into heat energy.
[0024] Among them, the hot melt adhesive 3 is made of hot melt polymer materials such as polyethylene (PE) or polypropylene (PP), which can melt at 60-150℃ and solidify after cooling to form a sealing adhesive layer.
[0025] Specifically, such as Figures 3-4 As shown, the energy input line includes a conductive block 6 and a connecting wire 9. The conductive block 6 is fixedly connected to the sleeve 2 and is electrically connected to the heating element 4. The connecting wire 9 can be electrically connected to the conductive block 6. When the connecting wire 9 is connected to an external power source, it can output electrical energy to the heating element 4.
[0026] Meanwhile, an outer tube 5 located outside the conductive block 6 is fixedly connected to the outside of the sleeve 2. A threaded cap 7 is fixedly connected to the outside of the end of the connecting wire 9. The threaded cap 7 is detachably fixedly connected to the outside of the outer tube 5. Its fixing method can be threaded connection or snap-fit. A conductive block 8 that can abut against the conductive block 6 is fixedly connected inside the threaded cap 7. The conductive block 8 and the connecting wire 9 are electrically connected. When the conductive block 6 and the conductive block 8 abut against each other, the connecting wire 9, the conductive block 8, the conductive block 6, and the heating element 4 are electrically connected together in sequence.
[0027] like Figures 1-3 As shown, in some embodiments, an annular cover 10 is threadedly connected to the outer side of the hot melt adhesive 3, and a pressure block 11 is fixedly connected to the inner side of the annular cover 10, which can slide along the axis of the hot melt adhesive 3. When the hot melt adhesive 3 is hot melted, the pressure block 11 is moved by rotating the annular cover 10, so that the pressure block 11 squeezes the hot melt adhesive 3, which makes the hot melt adhesive 3 more tightly bonded to the pipe body 13 and the sleeve 2.
[0028] Meanwhile, the pressure block 11 may have an inclined surface 12 on the side near the hot melt adhesive 3. The inclined surface 12 slopes from the end near the axis of the sleeve 2 to the end away from the axis of the sleeve 2 towards the direction near the connecting pipe 1. By setting the inclined surface 12, the force applied by the pressure block 11 to the hot melt adhesive 3 can be changed.
[0029] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.
Claims
1. A mechanical and electrical pipeline quick coupling structure for complex working conditions, characterized in that: The device includes a connecting pipe (1), both ends of which are fixedly connected to a sleeve (2). The sleeve (2) contains a hot melt adhesive (3) and a heating element (4) for heating the hot melt adhesive (3). An energy input line is fixedly connected to the outside of the sleeve (2), and the energy input line is connected to the heating element (4).
2. The complex service electromechanical line quick connector structure according to claim 1, characterized in that: The heating element (4) is fixedly connected inside the hot melt adhesive (3).
3. The quick-connect coupling structure for electromechanical pipelines under complex working conditions according to claim 1, characterized in that: The heating element (4) is made of nickel-chromium alloy or iron-chromium-aluminum alloy.
4. The quick-connect coupling structure for electromechanical pipelines under complex working conditions according to claim 1, characterized in that: The hot melt adhesive (3) is made of polyethylene or polypropylene.
5. The quick-connect coupling structure for electromechanical pipelines under complex working conditions according to claim 1, characterized in that: The energy input line includes a conductive block (6) and a connecting wire (9). The conductive block (6) is fixedly connected to the sleeve (2), and the conductive block (6) and the heating element (4) are electrically connected. The connecting wire (9) can be electrically connected to the conductive block (6).
6. The quick-connect coupling structure for electromechanical pipelines under complex working conditions according to claim 5, characterized in that: The outer tube (5) located outside the conductive block (6) is fixedly connected to the outer side of the sleeve (2). The threaded cap (7) is fixedly connected to the outer side of the end of the connecting wire (9). The threaded cap (7) is detachably fixedly connected to the outer side of the outer tube (5). The inner side of the threaded cap (7) is fixedly connected to the conductive block (8) that can abut against the conductive block (6). The conductive block (8) and the connecting wire (9) are electrically connected.
7. The quick-connect coupling structure for electromechanical pipelines under complex working conditions according to claim 1, characterized in that: The outer side of the hot melt adhesive (3) is threaded with an annular cover (10), and the inner side of the annular cover (10) is fixedly connected with a pressure block (11) that can slide along the axis of the hot melt adhesive (3) on the inner side of the hot melt adhesive (3).
8. The quick-connect coupling structure for electromechanical pipelines under complex working conditions according to claim 7, characterized in that: The pressure block (11) may have a sloping surface (12) on the side near the hot melt adhesive (3).