Plastic pipe coupling

Abstract

The utility model discloses a kind of plastic pipeline connecting pieces, for connecting the double water outlet of cooling water pump, comprising: main body, the main body is T-shaped and is integrally formed by injection molding, cooling water channel is provided in the main body, one end of the main body is provided with two cooling water inlets with cooling water channel through, the other end of the main body is provided with cooling water outlet with cooling water channel through;Inlet joint, the inlet joint is provided with two and is respectively welded with cooling water inlet, two inlet joints are connected with the double water outlet of cooling water pump respectively;Mounting seat, the main body has three branch pipes and extends perpendicularly outward, the branch pipe is through with cooling water channel Settings, the mounting seat is provided with three and is respectively welded with the outer end of three branch pipes, three mounting seats are respectively used for fixing pressure sensor, temperature sensor and flow rate sensor.This plastic pipeline connecting piece has the advantages of simple and stable structure, convenient manufacturing, long service life.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic laser beam welding, in particular to a plastic pipe connector. Background Art

[0002] In an industrial cooling system, as a key interface component between a cooling water pump and an external pipeline, the structural design and manufacturing process of a pipe connector directly affect the reliability of the system and the maintenance cost. At present, the pipe connectors supporting cooling water pumps are mostly made of metal materials (such as stainless steel, aluminum alloy, etc.) through CNC machining. Although such processes can ensure the mechanical strength of components, they have significant defects such as high material costs, long processing cycles, and complex processes. Especially in mass production, the economy is poor.

[0003] To reduce manufacturing costs, some solutions attempt to use injection molding processes to replace metal processing. However, due to the complex functional requirements of pipe connectors, their structures are complex, with undercuts presenting in multiple directions and cannot be developed through a single set of molds. Therefore, after the main body of the connector is injection molded, other parts need to be independently molded and then welded. During welding, ultrasonic welding, vibration friction welding, hot plate welding, etc. are mostly used. The pain points are that the welding methods have certain limitations, with problems such as poor welding quality, low production efficiency, difficulty in welding complex shapes, and short lifespan. Summary of the Utility Model

[0004] Aiming at the deficiencies of the above-mentioned prior art, the technical problem to be solved by this patent application is how to provide a plastic pipe connector with a simple and stable structure, convenient manufacturing, and long service life.

[0005] To solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A plastic pipe connector for connecting the double water outlets of a cooling water pump, comprising:

[0007] A main body, the main body is T-shaped and integrally formed by injection molding. A cooling water flow channel is arranged inside the main body. One end of the main body is provided with two cooling water inlets that are communicated with the cooling water flow channel, and the other end of the main body is provided with a cooling water outlet that is communicated with the cooling water flow channel;

[0008] Inlet connectors, there are two inlet connectors which are respectively welded to the cooling water inlets, and the two inlet connectors are respectively connected to the double water outlets of the cooling water pump;

[0009] Mounting seats, three branch pipes extend vertically outwards from the main body, and the branch pipes are arranged in a penetrating manner with the cooling water flow channel. There are three mounting seats which are respectively welded to the outer ends of the three branch pipes, and the three mounting seats are respectively used to fix a pressure sensor, a temperature sensor, and a flow rate sensor.

[0010] In this way, through a split-structure design, for structures that cannot be integrally injection molded, the main body and components are injection molded separately, and then the components are welded to the main body to complete the manufacturing process. During welding, the heat of the laser beam melts the contact surface between the main body and the component, and then they are polymerized again under clamping force. After cooling, a weld is formed at the joint surface, achieving a welded connection. Especially for plastic packaging internal components that cannot withstand severe vibration, or where watertightness and airtightness requirements are very high, or for use in sterile and dust-free environments, laser beam welding can quickly solve problems and has a long service life.

[0011] When in use, this plastic pipe connector connects to the dual outlets of the cooling water pump via two inlet joints. Pressure sensors, temperature sensors, and flow rate sensors are installed on three mounting bases to detect the pressure, temperature, and flow rate of the cooling water pumped out by the pump, thereby achieving cooling water status monitoring.

[0012] Preferably, the end of the cooling water inlet is recessed to form a slot, and the end of the inlet connector is protruding and provided with a plug ring that engages with the slot. The insertion surfaces of the cooling water inlet and the inlet connector are both pressed and bonded together by heat melting with a laser beam.

[0013] Preferably, the end of the branch pipe is provided with a countersunk platform, and the end of the mounting base is provided with a protruding protrusion. The countersunk platform and the protrusion are engaged, and the engaging surfaces of the countersunk platform and the protrusion are pressed and bonded together by heat melting with a laser beam.

[0014] Preferably, the main body is provided with end flanges.

[0015] Preferably, the corner of the main body is integrally molded with a corner reinforcement.

[0016] Preferably, the main body is provided with a plurality of reinforcing cylinders, and each of the reinforcing cylinders is provided with an internal threaded hole.

[0017] In summary, this plastic pipe connector has the advantages of simple and stable structure, easy manufacturing, and long service life. Attached Figure Description

[0018] Figure 1 This is a structural schematic diagram of a plastic pipe connector according to the present invention.

[0019] Figure 2 for Figure 1 The split diagram.

[0020] Figure 3 for Figure 2 A diagram showing another location. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings. In the description of the present invention, it should be understood that directional terms such as "upper," "lower," "top," and "bottom" indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are used only for the convenience of describing the present invention and simplifying the description. Unless otherwise stated, these directional terms 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 limiting the scope of protection of the present invention. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0022] like Figure 1-3 As shown, a plastic pipe connector for connecting the dual outlets of a cooling water pump includes:

[0023] The main body 1 is T-shaped and integrally formed by injection molding. Cooling water channels are provided inside the main body. Two cooling water inlets 2 are provided at one end of the main body and are connected to the cooling water channels. Cooling water outlets 3 are provided at the other end of the main body and are connected to the cooling water channels.

[0024] Inlet connector 4, there are two inlet connectors, each welded to a cooling water inlet, and the two inlet connectors are respectively connected to the dual outlets of the cooling water pump;

[0025] Mounting base 5, the main body extends vertically outward with three branch pipes 6, the branch pipes are connected to the cooling water flow channel, the mounting base is provided with three and is welded to the outer end of the three branch pipes respectively, the three mounting bases are used to fix the pressure sensor, temperature sensor and flow rate sensor respectively.

[0026] In this way, through a split-structure design, for structures that cannot be integrally injection molded, the main body and components are injection molded separately, and then the components are welded to the main body to complete the manufacturing process. During welding, the heat of the laser beam melts the contact surface between the main body and the component, and then they are polymerized again under clamping force. After cooling, a weld is formed at the joint surface, achieving a welded connection. Especially for plastic packaging internal components that cannot withstand severe vibration, or where watertightness and airtightness requirements are very high, or for use in sterile and dust-free environments, laser beam welding can quickly solve problems and has a long service life.

[0027] When in use, this plastic pipe connector connects to the dual outlets of the cooling water pump via two inlet joints. Pressure sensors, temperature sensors, and flow rate sensors are installed on three mounting bases to detect the pressure, temperature, and flow rate of the cooling water pumped out by the pump, thereby achieving cooling water status monitoring.

[0028] In implementation, the end of the cooling water inlet is recessed to form a slot 6, and the end of the inlet connector is protruded with a plug ring 7 that engages with the slot. The insertion surfaces of the cooling water inlet and the inlet connector are both heat-melted by a laser beam and then pressed together. By setting the slot and plug ring, the contact area between the cooling water inlet and the inlet connector can be increased, making the connection more stable and reliable after welding.

[0029] In practice, a countersunk plate 8 is provided at the end of the branch pipe, and a protruding block 9 is provided at the end of the mounting base. The countersunk plate and the protruding block are engaged, and the engaging surfaces of the countersunk plate and the protruding block are pressed and bonded together by heat melting with a laser beam. By setting the countersunk plate and the protruding block, the contact area between the end of the branch pipe and the mounting base can be increased, making the connection more stable and reliable after welding.

[0030] In practice, the main body is equipped with end flanges 10. This facilitates the installation of pipe fittings at the required locations, and the installation via the end flanges ensures greater stability.

[0031] In implementation, corner reinforcement members 11 are integrally molded at the corners of the main body through injection molding. This increases the strength of the main body. The main body has cooling water channels and must withstand the high-pressure cooling water pumped out by the cooling water pump. Failure is very likely to occur at the corners. Therefore, adding corner connectors can increase the structural strength of the main body and extend its service life.

[0032] In implementation, the main body is provided with several reinforcing cylinders 12, each of which has an internal threaded hole. The reinforcing cylinders are provided to facilitate connection between the main body and other components by providing internal threaded holes.

[0033] The connections between the cooling water inlet and inlet connector, as well as the branch pipes and mounting bases, are all achieved using laser beam welding. A high-energy-density laser beam is used as a heat source to melt the contact surfaces of the thermoplastic plastic, thus achieving the connection. When the laser beam irradiates the plastic surface, some of the laser energy is absorbed by the plastic and converted into heat, causing the plastic to rapidly heat up to its melting point, thereby fusing the welded parts.

[0034] The following two methods can be used for specific welding:

[0035] Contour welding: Using a collimated focusing welding head, the focused laser spot moves along the welding path, melting sequentially and forming a weld.

[0036] Synchronous welding: Using a laser emitter with multiple laser ports, the direction and shape of the laser beam are adjusted by optical devices. The laser beam is guided by a program to weld along the contour line of the welding layer.

[0037] Plastic pipe fittings are produced by laser beam welding, which has the following advantages:

[0038] 1. Plastic laser welding is precise, strong, and airtight, preventing water leakage. The welding process results in minimal resin degradation and fewer debris, and the surfaces of the packaged products can be tightly joined together around the weld.

[0039] 2. Easy to control, capable of welding small plastic parts with complex shapes and structures, and even products with three-dimensional geometry;

[0040] 3. Compared to other welding methods, laser welding significantly reduces vibration and thermal stress on packaging products, meaning that the aging rate of internal components in packaging products or devices is slower. It can also weld many different types of materials; for example, it can join polycarbonate that transmits infrared laser light and glass fiber reinforced black polybutylene terephthalate, which is simply impossible for other welding methods to join two polymers so different in structure, softening point, and reinforcing materials.

[0041] Therefore, this plastic pipe connector achieves integral bonding through laser beam welding, and has the advantages of simple and stable structure, convenient manufacturing, and long service life.

[0042] Finally, it should be noted that those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A plastic pipe connector for connecting the dual outlets of a cooling water pump, characterized in that, include: The main body is T-shaped and integrally formed by injection molding. Cooling water channels are provided inside the main body. Two cooling water inlets communicating with the cooling water channels are provided at one end of the main body, and a cooling water outlet communicating with the cooling water channels is provided at the other end of the main body. The inlet connector has two parts, each welded to a cooling water inlet, and the two inlet connectors are respectively connected to the dual outlets of the cooling water pump. The mounting base has three branch pipes extending vertically outward from the main body. The branch pipes are connected to the cooling water flow channel. There are three mounting bases, each welded to the outer end of one of the three branch pipes. The three mounting bases are used to fix the pressure sensor, temperature sensor and flow rate sensor respectively.

2. A plastic pipe connector according to claim 1, characterized in that, The end of the cooling water inlet is recessed to form a slot, and the end of the inlet connector is protruding and provided with a plug ring that engages with the slot. The insertion surfaces of the cooling water inlet and the inlet connector are both pressed and bonded together by heat melting with a laser beam.

3. A plastic pipe connector according to claim 1, characterized in that, The branch pipe end is provided with a countersunk platform, and the end of the mounting base is provided with a protruding protrusion. The countersunk platform and the protrusion are engaged. The engaging surfaces of the countersunk platform and the protrusion are both pressed and bonded by heat melting with a laser beam.

4. A plastic pipe connector according to claim 1, characterized in that, The main body is provided with end flanges.

5. A plastic pipe connector according to claim 1, characterized in that, The corner of the main body is integrally molded with corner reinforcements.

6. A plastic pipe connector according to claim 1, characterized in that, The main body is provided with several reinforcing cylinders, and each reinforcing cylinder is provided with an internal threaded hole.

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