High-temperature-resistant and high-pressure-resistant pipeline accelerating connecting plug structure

Abstract

The invention discloses a high-temperature-resistant and high-pressure-resistant pipeline accelerated connecting plug structure which comprises two quick connecting plugs, connecting pipes are arranged on the two quick connecting plugs, a corrugated pipeline is connected between the two connecting pipes, first inner sleeving pipes A are integrally formed at the two ends of the corrugated pipeline, and the first inner sleeving pipes A are matched with the connecting pipes in a sleeving mode. The first inner socketed pipe A covers the outer part of the connecting pipe; the corrugated pipeline is sleeved with a braided pipe, the two ends of the braided pipe are connected with first outer sleeving pipes A, and the first inner sleeving pipes A are sleeved with the first outer sleeving pipes A in a matched mode. According to the structure, under the condition that the caliber of the pipeline is not changed, the high-temperature bursting pressure of the pipeline is enhanced from 0.7 MPa to 5 MPa in the high-temperature state, the existing bursting pressure limit value, namely the pressure resistance value, is improved by 7 times, meanwhile, the flexibility of the corrugated pipeline is still kept, and the connection mode that a plastic pipe can be pressed through a plastic quick-plug connector is kept.

Description

Technical Field

[0001] The present invention relates to the technical field of plastic pipelines, in particular to a high-temperature and high-pressure resistant pipeline accelerating plug-in joint structure. Background Art

[0002] Automotive pipelines are channels for the flow of media. Pipes are indispensable in the automotive parts industry in the following areas: 1. Vehicle cooling systems such as battery pack thermal management systems; 2. Super charging pile power module cooling system; 3. Battery pack cooling system for industrial and commercial energy storage or containerized energy storage; In the above-mentioned scope of use, the pipeline assembly is generally made by pressing nylon plastic tubes with plastic quick-connect connectors or metal quick-connect connectors at room temperature. There is generally a barb structure on the connector. When assembling the plastic pipeline, the protrusion of the barb structure can make the pipeline maintain a certain friction force to prevent the pipeline from detaching under a certain internal pressure. At the same time, there is a sealing ring on the connector, which can provide a certain liquid sealing function after the pipeline is assembled.

[0003] The composition of pipeline products generally includes the following components: 1. Regarding the structure of the female quick-connect connector: In the vehicle cooling system, super charging pile power module cooling system, and energy storage battery pack cooling system industry, because they follow the quick-connect connector standards of the vehicle system, the male or female ends of the quick-connect connectors of the above-mentioned cooling systems generally adopt the automotive connector standards, generally in the form of SAE (American Society of Automotive Engineers) standard connectors, VDA standard connectors (German Association of the Automotive Industry) or CQC standard connectors (a new type of connector in my country, CompactQuickConnector compact quick-connect connector). The shape of its female connector is relatively complex. Due to processing cost considerations, it is mostly produced by plastic injection molding process (injection molded quick-connect connectors are divided into parts, and then the parts are assembled together by welding or assembly to form quick-connect connectors). Due to the room temperature press-fitting of nylon tubes, the female connector will have a barb structure (fir tree structure) at the position where it connects to the plastic tube; 2. About plastic pipes: Plastic pipes in cooling systems are generally made of nylon, with single-layer structures such as PA6, PA11, PA12, and PA612. There are also multi-layer pipes such as PA12 / PP and PA612 / PP. In multi-layer pipes, PP serves as a barrier layer to block water. To ensure its flexibility, plastic pipes generally adopt a corrugated structure. Compared with straight plastic pipes (the cross-sectional size does not change along the pipe axis), corrugated pipes have A1. high flexibility, A2. high adaptability, and can absorb more and larger dimensional tolerances during the installation process of pipe products. B1. Corrugated pipes can absorb more external loads, such as mechanical vibrations or stress acting on the pipe. C1. Because the wall thickness of corrugated pipes is thinner than that of straight pipes, corrugated pipes of the same length are lighter. 3. Other accessories of pipeline products: Generally, due to the need for heat insulation or to prevent condensation, the outside of the pipeline will also be equipped with components such as aluminum foil sheaths or foam sheaths to increase heat insulation protection or heat preservation functions.

[0004] The above three pipeline products have been maturely applied in the above cooling system. However, with the technological update and iteration of the cooling system, pipeline products have ushered in higher technical requirements. For example, when the joint form does not change, the pressure resistance of the pipeline products, especially the pressure resistance under high temperature conditions, increases exponentially; the demand for improved pressure resistance under high temperature conditions comes from the fact that when the pipeline diameter of the cooling system remains unchanged, the system pressure increases, and the pipeline flow demand per unit time increases. This can fully release the performance of the pump, increase the coolant flow per unit time of the cooling system, and take away more heat in the same time span, thereby releasing more power consumption of the heating components; for example, it can allow the battery cells to be charged and discharged at a larger charge and discharge rate, and allow the super charging pile to charge the vehicle at a higher charging rate while increasing the water cooling heat dissipation power of the power module.

[0005] The pressure resistance of the current bellows press-fit plastic joint under high temperature conditions (80℃~90℃) depends on ① the minimum wall thickness of the bellows (generally the wall thickness is about 0.6mm~1mm, depending on the diameter of the bellows); ② the interface between the plastic joint and the pipeline (the pipeline is pressed onto the joint through a barb structure). Its bursting pressure at 80℃ is generally within 0.7MPa. In order to unlock the power consumption of the heating unit and make full use of the pump head, the bursting pressure of the pipeline at 80℃ is generally required to be at least 2MPa. The existing process and design cannot meet the high bursting pressure requirements under high temperature conditions. If conventional high-pressure resistant rubber hose products are used, the joint needs to be changed to a metal joint, and the connection between the joint and the high-pressure resistant braided rubber hose needs to adopt a retaining process, which cannot meet the requirements of the joint matching.

[0006] To this end, we propose a high-temperature and high-pressure resistant pipeline accelerating plug-in joint structure to solve the above problems. Summary of the Invention

[0007] The purpose of the present invention is to solve the shortcomings of the prior art and propose a high-temperature and high-pressure resistant pipeline quick-plug joint structure. This structure increases the existing bursting pressure limit value, i.e., the pressure resistance value, by 7 times under high temperature conditions while retaining the flexibility of the corrugated pipeline. At the same time, it can still use the plastic quick plug joint to press the plastic pipe connection.

[0008] In order to achieve the above object, the present invention adopts the following technical solutions: A high-temperature and high-pressure resistant pipeline acceleration plug-in joint structure includes two quick-connect joints, both of which have connecting pipes, a corrugated pipe is connected between the two connecting pipes, and both ends of the corrugated pipe are integrally formed with a first inner sleeve pipe A, the first inner sleeve pipe A is fitted with the connecting pipe, and the first inner sleeve pipe A is covered on the outside of the connecting pipe, the outside of the corrugated pipe is covered with a braided tube, and both ends of the braided tube are connected to a first outer sleeve pipe A, and the first outer sleeve pipe A is fitted on the first inner sleeve pipe A.

[0009] As a further feature of the present invention, a first anti-slip barb A is provided on the connecting pipe, and the first inner sleeve pipe A is sleeved on the first anti-slip barb A.

[0010] As a further feature of the present invention, the braided tube is sleeved on the corrugated tube and the first inner sleeve tube A, and both ends of the braided tube are located between the first outer sleeve tube A and the first inner sleeve tube A.

[0011] As a further step in the present invention, the inner ring wall of the first outer sleeve A is provided with a second anti-slip barb A, and the second anti-slip barb A is snapped with the first anti-slip barb A to prevent slipping, so that the first outer sleeve A presses the braided tube and the first inner sleeve A together on the connecting tube to realize the connection between the quick plug connector and the corrugated pipe, and to connect the braided tube to the outside of the corrugated pipe.

[0012] As a further feature of the present invention, a first annular anti-slip groove is provided on the quick-connect connector and located at one end close to the connecting pipe.

[0013] As a further feature of the present invention, the braided tube is made of polyester thread, metal wire or aramid thread.

[0014] As a further feature of the present invention, the braided tube is braided with polyester thread, metal wire or aramid thread to form a mesh structure, and the thickness of the braided tube is 0.05 mm to 0.3 mm.

[0015] As a further feature of the present invention, the corrugated pipe is integrally formed with the first inner sleeve, and the first inner sleeve completely covers the outer surface of the connecting pipe.

[0016] As a further feature of the present invention, the connecting pipe is a through-tube structure, and second inner sleeve tubes are provided at both ends of the corrugated pipe. The second inner sleeve tubes are inserted into the connecting pipe and fixed by laser welding.

[0017] As a further feature of the present invention, a second outer sleeve is provided at both ends of the braided tube, and the inner wall of the second outer sleeve is provided with a second annular anti-slip protrusion and a second annular anti-slip groove, which are respectively clamped with the first annular anti-slip groove and the first annular anti-slip protrusion on the quick-connect connector.

[0018] As a further feature of the present invention, the second outer sleeve is formed by a secondary injection molding process and wrapped around the junction of the quick connector and the connecting pipe.

[0019] Compared with the prior art, the present invention has the following beneficial effects: The present invention adds a braided mesh to the outside of the corrugated pipe. The braided mesh is woven with polyester thread, metal wire or aramid thread to form a mesh structure, so that it can suppress the expansion and deformation of the pipe under high temperature and high pressure conditions to increase the bursting pressure value of the pipe. At the same time, a reinforcement method is used to improve the connection strength between the pipe and the joint, and a fixing method is used to connect the braided mesh to the joint body to suppress the elongation of the bellows under high temperature conditions, which can increase the bursting pressure of the pipe under the same high temperature conditions by 4 to 5 times. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is an axial view of a high-temperature and high-pressure pipeline accelerating plug connector structure proposed in the first embodiment of the present invention; Figure 2 for Figure 1 Exploded view of the braided tube and quick-connect connector; Figure 3 for Figure 2 Schematic diagram of the structure of the middle braided tube and the first outer tube; Figure 4 for Figure 3 Schematic diagram of the disassembly of the middle braided tube and the first outer tube; Figure 5 for Figure 4 Schematic diagram of the inner wall structure of the first outer casing; Figure 6 for Figure 2 Exploded diagram of the medium quick-connect connector and the corrugated pipe; Figure 7 This is a partial structural connection split diagram of Example 1 of the present invention; Figure 8 This is a structural breakdown diagram of a high-temperature and high-pressure pipeline accelerating plug connector structure proposed in the second embodiment of the present invention; Figure 9 for Figure 8 Exploded view of the middle connecting pipe and the second inner sleeve pipe; Figure 10 for Figure 8 Exploded diagram of the middle braided tube and the second outer tube; Figure 11 for Figure 8 A diagram showing the connection between the second outer sleeve, quick connector, and connecting pipe; Figure 12 for Figure 11 Structural breakdown diagram.

[0021] In the figure: 1, quick-connect connector; 11, first annular anti-slip groove; 12, first annular anti-slip protrusion; 2, connecting pipe; 21A, first anti-slip barb; 3, corrugated pipe; 31A, first inner sleeve pipe; 31B, second inner sleeve pipe; 4, braided pipe; 41A, first outer sleeve pipe; 41A1, second anti-slip barb; 41B, second outer sleeve pipe; 41B1, second annular anti-slip protrusion; 41B2, second annular anti-slip groove. DETAILED DESCRIPTION

[0022] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0023] In the description of the present invention, “plurality” means two or more, unless otherwise clearly defined.

[0024] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "mounted / connected," and "connected" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in the present invention in specific circumstances.

[0025] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0026] Example 1 Reference Figures 1 to 7 A high-temperature and high-pressure resistant pipeline acceleration plug-in joint structure includes two quick-connect connectors 1. Both quick-connect connectors 1 have connecting pipes 2. The connecting pipes 2 have first anti-slip barbs 21A. The first inner sleeve 31A is sleeved on the first anti-slip barbs 21A. The quick-connect connector 1 is provided with a first annular anti-slip groove 11 and a first annular anti-slip protrusion 12 at one end near the connecting pipe 2.

[0027] A corrugated pipe 3 is connected between the two connecting pipes 2, and both ends of the corrugated pipe 3 are integrally formed with a first inner sleeve pipe 31A, the first inner sleeve pipe 31A is fitted with the connecting pipe 2, and the first inner sleeve pipe 31A is covered on the outside of the connecting pipe 2, the outside of the corrugated pipe 3 is sleeved with a braided tube 4, and both ends of the braided tube 4 are connected to a first outer sleeve pipe 41A, and the first outer sleeve pipe 41A is fitted on the first inner sleeve pipe 31A.

[0028] The braided tube 4 is made of polyester thread, metal wire or aramid thread. The polyester thread, metal wire or aramid thread are woven to form a mesh structure. The weaving density can be as long as the maximum width of the woven mesh does not exceed 2 times the thickness of the plastic tube wall. The plastic tube wall thickness is 0.5mm to 1.5mm, so the minimum width between the woven mesh is 1mm. The braided tube 4 is sleeved on the corrugated pipe 3 and the first inner sleeve pipe 31A, and the two ends of the braided tube 4 are located between the first outer sleeve pipe 41A and the first inner sleeve pipe 31A. The first The inner ring wall of the outer sleeve 41A is provided with a second anti-slip barb 41A1, and the second anti-slip barb 41A1 is locked with the first anti-slip barb 21A to prevent slipping. In this way, the first outer sleeve 41A presses the braided tube 4 and the first inner sleeve 31A together on the connecting tube 2. With the mutual locking of the second anti-slip barb 41A1 and the first anti-slip barb 21A, it can prevent easy detachment and realize the quick connection between the quick plug connector 1 and the corrugated pipe 3, and stably connect the braided tube 4 to the outside of the corrugated pipe 3.

[0029] When connecting, first put the braided tube 4 and the two first outer sleeve tubes 41A on the corrugated pipe 3. The two first outer sleeve tubes 41A are located at the two ends of the braided tube 4 and are respectively outside the first inner sleeve tube 31A. Then, the two first inner sleeve tubes 31A are respectively put on the outside of the connecting tube 2 on the two quick-connect connectors 1. There is a first anti-slip barb 21A on the connecting tube 2 at this location. Then, the two ends of the braided tube 4 are respectively put on the two first inner sleeve tubes 31A. At this time, the braided tube 4 covers the outside of the corrugated pipe 3. Then, the first outer sleeve tube 41A is put on the first inner sleeve tube 31A and the end of the braided tube 4 is covered and squeezed. At this time, the second anti-slip barb 41A1 on the inner wall of the first outer sleeve tube 41A squeezes the braided tube 4 and the first inner sleeve tube 31A and covers it on the connecting tube 2. At the same time, the second anti-slip barb 41A1 and the first anti-slip barb 21A are mutually staggered and snapped into and squeeze the braided tube 4 and the first inner sleeve tube 31A, preventing them from easily detaching while connecting.

[0030] Example 2 Reference Figures 8-12 , a high-temperature and high-pressure resistant pipeline accelerating plug-in joint structure, as another connection method of the present invention, the connecting pipe 2 in this method is different from that in embodiment 1. The connecting pipe 2 in this method is a through pipe. The straight-through pipe shown in the figure is only a schematic display diagram. It can actually be a curved pipe with a spatial shape after thermoforming. The two ends of the corrugated management 3 can also be made into a straight tubular second inner sleeve 31B, which can be plugged into the connecting pipe 2. The two ends of the braided tube 4 can be made into a shape with a second outer sleeve 41B. The inner ring wall of the second outer sleeve 41B does not have a fir-tree-shaped barb or convexity, but has a second annular anti-slip protrusion 41B1 and a second annular anti-slip groove 41B2. The second annular anti-slip protrusion 41B1 and the second annular anti-slip groove 41B2 are respectively matched with the first annular anti-slip groove 11 and the first annular anti-slip protrusion 12 on the quick-connect connector 1; During connection, the braided tube 4 and the two second outer tubes 41B are placed on the corrugated pipe 3, and the two second outer tubes 41B are respectively placed in the position of the second inner tubes 31B. The two second inner tubes 31B are respectively inserted into the connecting tubes 2 on the two quick connectors 1. The connecting tubes 2 are made of a light-transmitting material. Laser welding is used to penetrate the connecting tubes 2 and melt the surface of the second inner tubes 31B and dissolve them into the inner wall of the connecting tube 2, and solidify together after cooling. Then, the two ends of the braided tube 4 are placed in the positions of the two connecting tubes 2, where the braided tube 4 covers the outside of the corrugated pipe 3, and the second outer sleeve 41B is placed on the quick-plug connector 1, and the second annular anti-slip protrusion 41B1 is stuck in the first annular anti-slip groove 11, and the second annular anti-slip groove 41B2 is placed on the outside of the first annular anti-slip protrusion 12, so that the second outer sleeve 41B is connected to the connecting tube 2 and the connecting tube 2. At this time, the end of the braided tube 4 is squeezed outside the connecting tube 2 by the second outer sleeve 41B, that is, the end of the braided tube 4 is squeezed to the position of the inner wall of the second outer sleeve 41B and the outer wall of the connecting tube 2; more specifically, the second outer sleeve 41B consists of two parts, a large-diameter sleeve part and a small-diameter sleeve part, the large-diameter sleeve part is sleeved on the quick-plug connector 1, and the small-diameter sleeve part is sleeved on the connecting tube 2, and the second annular anti-slip protrusion 41B1 and the second annular anti-slip groove 41B2 are located on the inner wall of the large-diameter sleeve part.

[0031] Example 3 Compared with the connection method in Example 2, the laser welding process has not changed, but the change is that the final molding process is a secondary injection molding process, that is, the second outer sleeve 41B in this embodiment is injection molded and connected. Specifically, after the laser melting welding is completed, the laser welded and braided pipeline in Example 2 is placed in an injection mold, and a shell is injection-molded. The shell is the second outer sleeve 41B, and the injection-molded second outer sleeve 41B is used to wrap the first annular anti-slip groove 11 and the first annular anti-slip protrusion 12 on the quick-plug connector 1 and the outside of the connecting pipe 2 and the braided pipe 4 to achieve connection.

[0032] Connection process Example 1 Connection process (barb snap-on type) ① Pre-install the braided tube and the outer tube: put the braided tube (4) on the outside of the corrugated tube (3), and place the two first outer tubes (41A) at both ends of the corrugated tube (3).

[0033] ② Install the inner sleeve tube and the quick connector: Sleeve the first inner sleeve tube (31A) at both ends of the corrugated pipe (3) onto the connecting pipe (2) of the quick connector (1), ensuring that the inner wall of the first inner sleeve tube (31A) is fully engaged with the first anti-slip barb (21A) of the connecting pipe (2).

[0034] ③ Fix the ends of the braided tube: pull the two ends of the braided tube (4) to the outer wall of the first inner sleeve tube (31A), then put the first outer sleeve tube (41A) onto the first inner sleeve tube (31A), so that the second anti-slip barb (41A1) on the inner wall of the first outer sleeve tube (41A) and the first anti-slip barb (21A) of the connecting tube (2) are mutually staggered and engaged, and the ends of the braided tube (4) are pressed tightly.

[0035] ④ Anti-slip verification: Check the snap-fit status of the first annular anti-slip notch (11) and the first outer sleeve (41A) to ensure that there is no looseness.

[0036] Example 2: Connection process (laser welding) ① Pre-install the braided tube and the outer tube: put the braided tube (4) on the outside of the corrugated tube (3), and place the two second outer tubes (41B) at both ends of the corrugated tube (3).

[0037] ② Insertion and welding: insert the second inner sleeve tube (31B) of the corrugated pipe (3) into the connecting pipe (2), use laser to penetrate the light-transmitting material of the connecting pipe (2), melt the surface of the second inner sleeve tube (31B) and weld it to the inner wall of the connecting pipe (2).

[0038] ③ Install the outer sleeve: put the second outer sleeve (41B) onto the quick connector (1), so that the second annular anti-slip protrusion (41B1) is inserted into the first annular anti-slip groove (11) of the quick connector (1), and the second annular anti-slip groove (41B2) is sleeved on the outer wall of the first annular anti-slip protrusion (12).

[0039] Example 3 Connection process (injection molding) The pipe welded by the [Example 2 connection process (laser welding)] is placed in an injection mold, and a second outer sleeve (41B) is injection molded to wrap the joint between the quick connector (1) and the connecting pipe (2). It should be noted that compared with the connection process in Example 2, except for the injection molding step, all other changes remain unchanged.

[0040] The above embodiments are preferred implementation modes of the present invention, but the implementation modes of the present invention are not limited to the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principles of the present invention should be considered as equivalent replacement methods and are included in the scope of protection of the present invention.

Claims

1. A high temperature and high pressure resistant pipeline quick plug connector structure, comprising two quick plug connectors (1), characterized in that: Both of the quick-connect connectors (1) have connecting pipes (2), a corrugated pipe (3) is connected between the two connecting pipes (2), and both ends of the corrugated pipe (3) are integrally formed with a first inner sleeve pipe (31A); The first inner sleeve tube (31A) is fitted with the connecting tube (2), and the first inner sleeve tube (31A) is covered on the outside of the connecting tube (2); The corrugated pipeline (3) is externally sleeved with a braided tube (4), and both ends of the braided tube (4) are connected to a first outer sleeve tube (41A), and the first outer sleeve tube (41A) is sleeved on the first inner sleeve tube (31A).

2. A high temperature and high pressure resistant pipeline accelerating plug connector structure according to claim 1, characterized in that: The connecting tube (2) is provided with a first anti-slip barb (21A), the first inner sleeve tube (31A) is sleeved on the first anti-slip barb (21A), and the inner wall of the first inner sleeve tube (31A) is engaged with the first anti-slip barb (21A).

3. The high temperature and high pressure resistant pipeline accelerating plug connector structure according to claim 1, characterized in that: The braided tube (4) is sleeved on the corrugated pipe (3) and the first inner sleeve tube (31) A, and both ends of the braided tube (4) are located between the first outer sleeve tube (41A) and the first inner sleeve tube (31A).

4. The high temperature and high pressure resistant pipeline accelerating plug connector structure according to claim 1, characterized in that: The inner ring wall of the first outer sleeve (41A) is provided with a second anti-slip barb (41A1), and the second anti-slip barb (41A1) is locked with the first anti-slip barb (21A) to prevent slipping.

5. The high temperature and high pressure resistant pipeline accelerating plug connector structure according to claim 1, characterized in that: A first annular anti-slip groove (11) and a first annular anti-slip protrusion (12) are provided on the quick-connect connector (1) and at one end close to the connecting pipe (2).

6. The high temperature and high pressure resistant pipeline accelerating plug connector structure according to claim 1, characterized in that: The braided tube (4) is woven into a mesh structure by means of polyester threads, metal wires or aramid threads, and the thickness of the braided tube (4) is 0.05 mm to 0.3 mm.

7. The high temperature and high pressure resistant pipeline accelerating plug connector structure according to claim 1, characterized in that: The corrugated pipe (3) and the first inner sleeve pipe (31A) are integrally formed, and the first inner sleeve pipe (31A) completely covers the outer surface of the connecting pipe (2).

8. The high temperature and high pressure resistant pipeline accelerating plug connector structure according to claim 1, characterized in that: The connecting pipe (2) is a through-tube structure, and second inner sleeve pipes (31B) are provided at both ends of the corrugated pipe (3). The second inner sleeve pipes (31B) are inserted into the connecting pipe (2) and fixed by laser welding.

9. The high temperature and high pressure resistant pipeline accelerating plug connector structure according to claim 1, characterized in that: The braided tube (4) is provided with a second outer tube (41B) at both ends, and the inner wall of the second outer tube (41B) is provided with a second annular anti-slip protrusion (41B1) and a second annular anti-slip notch (41B2), which are respectively engaged with the first annular anti-slip notch (11) and the first annular anti-slip protrusion (12) on the quick-connect connector (1).

10. The high temperature and high pressure resistant pipeline accelerating plug connector structure according to claim 1, characterized in that: The second outer sleeve (41B) is formed by a secondary injection molding process and is wrapped around the joint between the quick connector (1) and the connecting pipe (2).

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