Quick connection line fitting structure for polyurea spraying equipment

By using a quick-connect pipe joint structure and employing clamps and adapters, the problem of complex and difficult-to-replace pipe joint structures in existing polyurea spraying equipment has been solved, enabling rapid disassembly and sealed connection, thus improving maintenance efficiency.

CN224533735UActive Publication Date: 2026-07-21QINGDAO LICHUAN ELECTROMECHANICAL EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
QINGDAO LICHUAN ELECTROMECHANICAL EQUIP CO LTD
Filing Date
2025-09-11
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

The existing polyurea spraying equipment has a complex pipe joint structure, which makes it difficult to quickly replace and maintain damaged parts, affecting construction quality and progress.

Method used

The quick-connect pipe fitting structure includes two connecting components, clamps, adapters, pressure rods, and pressure caps. The clamps and adapters work together to achieve quick disassembly and sealing connection, while rubber sleeves enhance the sealing performance.

Benefits of technology

It enables rapid connection and disassembly of polyurea spraying equipment and pipelines, ensuring sealing, facilitating quick replacement and maintenance of components, and avoiding the scrapping of the entire component.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of quick connecting pipeline joint structures of polyurea spraying equipment, including connecting component, the connecting component is set two, two The connecting component is butt joint, and the position of the connecting component butt joint is equipped with clamp, the clamp is engaged in the position of two connecting component butt joint, the clamp one end is rotatably connected with adapter, the adapter and clamp are rotatably connected by pin shaft;Adapter is equipped with pressure rod on, the adapter is equipped with pressure cap, the pressure cap is pressed on the one end of clamp not set adapter, the one end of the connecting component towards outside is equipped with pressure head, the pressure head is used to connect the connecting component with polyurea spraying equipment or polyurea spraying pipeline.The utility model is connected with polyurea spraying equipment and polyurea spraying pipeline by setting two connecting components respectively, then two connecting components are connected together using clamp, and good sealing between clamp and connecting component is ensured.
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Description

Technical Field

[0001] This utility model relates to the field of pipe joint technology, specifically a quick-connect pipe joint structure for polyurea spraying equipment. Background Technology

[0002] Polyurea spraying technology, as a highly efficient and environmentally friendly anti-corrosion and waterproofing construction process, has been widely used in construction, chemical, transportation and other fields. Polyurea spraying equipment typically consists of a main unit, spray gun, and material delivery pipeline. Among these, the material delivery pipeline is a key component for transporting polyurea materials, and the reliability and efficiency of its joint connections directly affect the construction quality and progress.

[0003] In the prior art, utility model patent with publication number CN221504265U discloses a spiral wound pipe connection joint, which improves the problems of unreliable pipe connection, poor sealing, and easy fluid leakage. It includes a first spiral wound pipe and a second spiral wound pipe. A threaded block is fixed on one side of the first spiral wound pipe. The threaded block and the second spiral wound pipe are connected by a thread. The connection between the first spiral wound pipe and the second spiral wound pipe is sprayed with silicone paint. A second fastening ring is connected to the outside of the silicone paint. A positioning bolt is connected to one side of the second fastening ring.

[0004] The spiral wound tube connector provided by the aforementioned patent is easy to adjust according to the width of different spiral wound tubes. However, in actual polyurea spraying, the polyurea spraying pipe and the polyurea spraying equipment need to be frequently disassembled and reassembled. Although the existing connector structure can be disassembled and reassembled, the structure of some components is complex, making it difficult to quickly replace damaged components, which is not conducive to the subsequent maintenance and upkeep of the connector. Summary of the Invention

[0005] The purpose of this utility model is to provide a quick-connect pipe joint structure for polyurea spraying equipment, which aims to improve the problem that although existing pipe joints can be disassembled, some components have complex structures, making it difficult to quickly replace damaged components and hindering subsequent maintenance of the pipe joints.

[0006] This utility model is implemented as follows:

[0007] A quick-connect pipe joint structure for a polyurea spraying equipment includes two connecting components that are mated together. A clamp is provided at the mating position of the two connecting components, and the clamp engages with the mating position. One end of the clamp is rotatably connected to an adapter, which is rotatably connected to the clamp via a pin. A pressure rod is fitted onto the adapter, and a pressure cap is provided on the adapter. The pressure cap presses the pressure rod against the end of the clamp without the adapter, ensuring stable connection of the two connecting components. An outward-facing end of each connecting component has a pressure head for connecting the connecting component to the polyurea spraying equipment or a polyurea spraying pipe.

[0008] Preferably, the connecting assembly includes a connector and a sealing ring, and each of the two connectors has an annular groove at one end close to the other, with the sealing ring installed inside the annular groove.

[0009] Preferably, the outer side of the connector facing outward is provided with a sleeve, the space between the sleeve and the outer side of the connector is provided as a pressure groove, and the side of the sleeve is provided with multiple slots.

[0010] Preferably, the pressure head has a pressure ring at one end facing outwards, and the diameter of the pressure head at the outer end facing outwards is larger than the diameter at the end facing inwards. The pressure head has multiple slits evenly distributed. The pressure ring is provided with a locking plate at the position of the locking groove. The outer side of the locking plate is provided with a set screw. The locking plate is inserted into the locking groove, and the set screw is pressed against the socket joint.

[0011] Preferably, the clamp includes a first clamping plate, a second clamping plate, and a hinge. The bottom ends of the first clamping plate and the second clamping plate are connected by the hinge. The top end of the first clamping plate is provided with a rotating joint, and the rotating joint is provided with a shaft hole in the middle. The top end of the second clamping plate is provided with a pressure plate, and the side of the pressure plate is provided with an arc-shaped groove for pressing the pressure rod onto the pressure plate.

[0012] Preferably, the adapter has a through hole in the middle and a mounting joint in the middle of the side of the adapter, and the mounting joint has a screw.

[0013] Preferably, the pressure rod has a sleeve in the middle of its side, and the sleeve has a connecting hole in the middle of its side, which is fitted onto the screw.

[0014] Preferably, the pressure cap has a threaded hole in the middle and a hexagon on the pressure cap for screwing the pressure cap to press the pressure rod into the arc groove of the pressure plate.

[0015] Preferably, it also includes a rubber sleeve, wherein the inner sides of the first card plate and the second card plate are provided with grooves, the rubber sleeve is embedded in the inner side of the grooves, and the rubber sleeve is fitted at the position where the two connecting components are mated.

[0016] Preferably, the side of the rubber sleeve is provided with multiple anti-slip grooves evenly to ensure that the rubber sleeve is stable inside the grooves.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This utility model sets up two connecting components to connect to the polyurea spraying equipment and the polyurea spraying pipeline respectively, and then uses clamps to connect the two connecting components together, ensuring a good seal between the clamps and the connecting components; and with the cooperation of adapters, pressure rods and pressure caps, the clamps can be easily and quickly disassembled. This facilitates the quick assembly and disassembly of the polyurea spraying pipeline and the polyurea spraying equipment, and allows for quick replacement of each component of the entire pipeline joint if damaged, greatly facilitating the maintenance and upkeep of the entire pipeline joint and avoiding the problem of the entire component being scrapped due to the damage of some components.

[0019] 2. This utility model provides a rubber sleeve at the joint of the two connecting components. The rubber sleeve can further ensure a seal between the two connecting components and the clamp, ensuring that the polyurea spraying pipeline will not easily leak. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the connecting component of this utility model;

[0022] Figure 3 This is a schematic diagram of the pressure head of this utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the rubber sleeve of this utility model;

[0024] Figure 5 This is a schematic diagram of the structure of the clamp of this utility model;

[0025] Figure 6 This is a schematic diagram of the structure of the adapter of this utility model;

[0026] Figure 7 This is a schematic diagram of the structure of the pressure bar of this utility model;

[0027] Figure 8 This is a schematic diagram of the structure of the pressure cap of this utility model.

[0028] In the diagram: 1. Connecting assembly; 11. Connector; 111. Ring groove; 112. Socket joint; 113. Slot; 114. Pressure groove; 12. Sealing ring; 2. Pressure head; 21. Pressure ring; 22. Gap; 23. Clamping plate; 24. Top screw; 3. Rubber sleeve; 31. Anti-slip groove; 4. Clamp; 41. First clamping plate; 411. Rotary joint; 412. Shaft hole; 42. Second clamping plate; 421. Groove; 422. Pressure plate; 423. Arc groove; 43. Hinge; 5. Adapter; 51. Through hole; 52. Mounting joint; 53. Screw; 6. Pressure rod; 61. Socket joint; 62. Socket hole; 7. Pressure cap; 71. Threaded hole; 72. Hexagon; 8. Pin. Detailed Implementation

[0029] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] The following description, in conjunction with the accompanying drawings and specific embodiments, provides further details: Example

[0031] like Figure 1 As shown, a quick-connect pipe joint structure for a polyurea spraying equipment includes two connecting components 1, which are mated together. These two connecting components 1 facilitate connection to both the polyurea spraying equipment and the polyurea spraying pipeline. A clamp 4 is provided at the mating position of the connecting components 1, engaging with the two connecting components 1. This structure ensures a stable connection between the two connecting components 1, thereby enabling indirect connection and use between the polyurea spraying pipeline and the polyurea spraying equipment. An adapter 5 is rotatably connected to one end of the clamp 4, and the adapter 5 and clamp 4 are rotatably connected via a pin 8, facilitating the rotation and use of the adapter 5. A pressure rod 6 is fitted onto the adapter 5, and a pressure cap 7 is provided on the adapter 5. The pressure cap 7 presses the pressure rod 6 against the end of the clamp 4 without the adapter 5, ensuring the clamp 4 stably connects the two connecting components 1 together, guaranteeing the stability and usability of the entire connecting pipe joint. The connecting component 1 has a pressure head 2 at one end facing outward. The pressure head 2 is used to connect the connecting component 1 to a polyurea spraying equipment or a polyurea spraying pipeline.

[0032] like Figure 2As shown, the connecting assembly 1 includes a connector 11 and a sealing ring 12. Both connectors 11 have annular grooves 111 at their close ends, and the sealing ring 12 is installed inside the annular grooves 111. This structure facilitates effective sealing between the connector 11 and the clamp 4 through tightening, preventing polyurea leakage. A sleeve 112 is provided on the outer side of the connector 11 facing outwards. The space between the sleeve 112 and the outer side of the connector 11 is a pressure groove 114. The sleeve 112 is a connecting part that facilitates connection with polyurea spraying equipment or polyurea spraying pipes, allowing the connecting part to be inserted into the pressure groove 114. Then, the pressure head 2 is continuously inserted into the pressure groove 114, thereby achieving the connection and fixation of the polyurea spraying pipe. Multiple slots 113 are provided on the side of the sleeve 112. The slots 113 facilitate limiting the pressure head 2, allowing for tightening and fixing of the pressure head 2.

[0033] like Figure 3 As shown, the outer end of the pressure head 2 is provided with a pressure ring 21, which is convenient for pressing onto the end face of the socket 112. The diameter of the outer end of the pressure head 2 is larger than the diameter of the inner end, and multiple slits 22 are evenly provided on the pressure head 2. This structure facilitates tightening the pressure head 2, and the pressure head 2 can be stably pressed onto the polyurea spraying pipe.

[0034] like Figure 5 As shown, the clamp 4 includes a first clamping plate 41, a second clamping plate 42, and a hinge 43. The bottom ends of the first clamping plate 41 and the second clamping plate 42 are connected by the hinge 43. This structure allows the clamp 4 to be stably engaged between the two connecting components 1. The top of the first clamping plate 41 is provided with a rotating joint 411, and the middle of the rotating joint 411 is provided with a shaft hole 412, which facilitates the rotating joint 411 to be rotatably connected to the first clamping plate 41. The top of the second clamping plate 42 is provided with a pressure plate 422, and the side of the pressure plate 422 is provided with an arc-shaped groove 423 for pressing the pressure rod 6 onto the pressure plate 422. By pressing the pressure rod 6, the gap 22 between the first clamping plate 41 and the second clamping plate 42 can be tightened.

[0035] like Figure 6 As shown, the adapter 5 has a through hole 51 in the middle, which facilitates the pin 8 to pass through the adapter 5. The adapter 5 also has a mounting joint 52 in the middle of its side, and a screw 53 is provided on the mounting joint 52. The mounting joint 52 and the screw 53 are fitted together to facilitate the fitting onto the pressure rod 6, and the screw 53 facilitates the connection of the pressure cap 7.

[0036] like Figure 7 As shown, a sleeve 61 is provided in the middle of the side of the pressure rod 6, and a sleeve hole 62 is provided in the middle of the sleeve 61. The sleeve hole 62 is fitted onto the screw 53. The fit between the sleeve and the sleeve hole 62 is to facilitate fitting onto the screw 53 and to facilitate the pressure rod 6 to be stably pressed onto the arc groove 423 of the pressure plate 422.

[0037] like Figure 8 As shown, the pressure cap 7 has a threaded hole 71 in the middle, which is convenient to be connected to the screw 53 by threads. The pressure cap 7 also has a hexagon 72, which is used to tighten the pressure cap 7 to press the pressure rod 6 onto the arc groove 423 of the pressure plate 422. Example

[0038] like Figure 1 As shown, a quick-connect pipe joint structure for a polyurea spraying equipment includes two connecting components 1, which are mated together. These two connecting components 1 facilitate connection to both the polyurea spraying equipment and the polyurea spraying pipeline. A clamp 4 is provided at the mating position of the connecting components 1, engaging with the two connecting components 1. This structure ensures a stable connection between the two connecting components 1, thereby enabling indirect connection and use between the polyurea spraying pipeline and the polyurea spraying equipment. An adapter 5 is rotatably connected to one end of the clamp 4, and the adapter 5 and clamp 4 are rotatably connected via a pin 8, facilitating the rotation and use of the adapter 5. A pressure rod 6 is fitted onto the adapter 5, and a pressure cap 7 is provided on the adapter 5. The pressure cap 7 presses the pressure rod 6 against the end of the clamp 4 without the adapter 5, ensuring the clamp 4 stably connects the two connecting components 1 together, guaranteeing the stability and usability of the entire connecting pipe joint. The connecting component 1 has a pressure head 2 at one end facing outward. The pressure head 2 is used to connect the connecting component 1 to a polyurea spraying equipment or a polyurea spraying pipeline.

[0039] like Figure 2 As shown, the connecting assembly 1 includes a connector 11 and a sealing ring 12. Both connectors 11 have annular grooves 111 at their close ends, and the sealing ring 12 is installed inside the annular grooves 111. This structure facilitates effective sealing between the connector 11 and the clamp 4 through tightening, preventing polyurea leakage. A sleeve 112 is provided on the outer side of the connector 11 facing outwards. The space between the sleeve 112 and the outer side of the connector 11 is a pressure groove 114. The sleeve 112 is a connecting part that facilitates connection with polyurea spraying equipment or polyurea spraying pipes, allowing the connecting part to be inserted into the pressure groove 114. Then, the pressure head 2 is continuously inserted into the pressure groove 114, thereby achieving the connection and fixation of the polyurea spraying pipe. Multiple slots 113 are provided on the side of the sleeve 112. The slots 113 facilitate limiting the pressure head 2, allowing for tightening and fixing of the pressure head 2.

[0040] like Figure 3As shown, the outer end of the pressure head 2 is provided with a pressure ring 21, which is convenient for pressing onto the end face of the socket 112. The diameter of the outer end of the pressure head 2 is larger than the diameter of the inner end. Multiple slits 22 are evenly provided on the pressure head 2. This structure facilitates tightening the pressure head 2, which can be stably pressed onto the polyurea spraying pipe. The pressure ring 21 is aligned with the slot 113 and a locking plate 23 is provided. The outer side of the locking plate 23 is provided with a set screw 24. The locking plate 23 is inserted into the slot 113 and the set screw 24 is pressed onto the socket 112, thereby fixing the pressure head 2.

[0041] like Figure 5 As shown, the clamp 4 includes a first clamping plate 41, a second clamping plate 42, and a hinge 43. The bottom ends of the first clamping plate 41 and the second clamping plate 42 are connected by the hinge 43. This structure allows the clamp 4 to be stably engaged between the two connecting components 1. The top of the first clamping plate 41 is provided with a rotating joint 411, and the middle of the rotating joint 411 is provided with a shaft hole 412, which facilitates the rotating joint 411 to be rotatably connected to the first clamping plate 41. The top of the second clamping plate 42 is provided with a pressure plate 422, and the side of the pressure plate 422 is provided with an arc-shaped groove 423 for pressing the pressure rod 6 onto the pressure plate 422. By pressing the pressure rod 6, the gap 22 between the first clamping plate 41 and the second clamping plate 42 can be tightened.

[0042] like Figure 6 As shown, the adapter 5 has a through hole 51 in the middle, which facilitates the pin 8 to pass through the adapter 5. The adapter 5 also has a mounting joint 52 in the middle of its side, and a screw 53 is provided on the mounting joint 52. The mounting joint 52 and the screw 53 are fitted together to facilitate the fitting onto the pressure rod 6, and the screw 53 facilitates the connection of the pressure cap 7.

[0043] like Figure 7 As shown, a sleeve 61 is provided in the middle of the side of the pressure rod 6, and a sleeve hole 62 is provided in the middle of the sleeve 61. The sleeve hole 62 is fitted onto the screw 53. The fit between the sleeve and the sleeve hole 62 is to facilitate fitting onto the screw 53 and to facilitate the pressure rod 6 to be stably pressed onto the arc groove 423 of the pressure plate 422.

[0044] like Figure 8 As shown, the pressure cap 7 has a threaded hole 71 in the middle, which is convenient to be connected to the screw 53 by threads. The pressure cap 7 also has a hexagon 72, which is used to tighten the pressure cap 7 to press the pressure rod 6 onto the arc groove 423 of the pressure plate 422.

[0045] like Figure 1 and Figure 5As shown, it also includes a rubber sleeve 3. The inner sides of the first clamping plate 41 and the second clamping plate 42 are both provided with grooves 421. The rubber sleeve 3 is embedded in the inner side of the grooves 421 and is fitted on the position where the two connecting components 1 are mated. This structure makes it convenient to press the rubber sleeve 3 into the position where the two connecting components 1 are mated by the continuous tightening of the first clamping plate 41 and the second clamping plate 42, so as to further seal the two connecting components 1.

[0046] like Figure 4 As shown, the rubber sleeve 3 has multiple anti-slip grooves 31 evenly distributed on its side to ensure that the rubber sleeve 3 is stable inside the groove 421.

[0047] Working principle: Two connecting components 1 are connected to the polyurea spraying equipment and the polyurea spraying pipeline respectively. After docking, a stable connection is achieved through clamps 4. The end of the connector 11 of the connecting component 1 is provided with an annular groove 111 and a built-in sealing ring 12. When the clamp 4 is tightened, the sealing ring 12 can seal the connection between the connector 11 and the clamp 4 to prevent polyurea leakage. The sleeve 112 on the outside of the connector 11 forms a pressure groove 114 with the outer side of the connector 11. After the connecting part of the polyurea pipeline is inserted into the pressure groove 114, the pressure head 2 with a gap 22 is inserted into the pressure groove 114. The pressure head 2 is limited by the groove 113 on the side of the sleeve 112 to prevent the pressure head 2 from rotating. After the pressure head 2 presses and fixes the polyurea pipeline, the screw 24 is tightened to fix the position of the pressure head 2, thereby fixing the pipeline. The clamp 4 consists of a first clamping plate 41 and a second clamping plate 42 connected by a hinge 43. The rotating joint 411 at the top cooperates with the pressure plate 422. The pressure rod 6 is sleeved on the screw 53 of the rotating joint 411 through the sleeve 61. The pressure cap 7 with the hexagon 72 is turned to move along the screw 53, pressing the pressure rod 6 onto the arc groove 423 of the pressure plate 422, causing the clamp 4 to tighten. At the same time, the rubber sleeve 3 in the groove 421 on the inner side of the first clamping plate 41 and the second clamping plate 42 is pressed at the joint of the two connecting components 1, further enhancing the sealing effect at the joint, and finally achieving a stable and sealed connection between the polyurea spraying equipment and the pipeline.

[0048] In summary, compared with the prior art, this application sets up two connecting components 1 to connect to the polyurea spraying equipment and the polyurea spraying pipeline respectively, and then uses clamps 4 to connect the two connecting components 1 together, ensuring a good seal between the clamps 4 and the connecting components 1; and with the cooperation of the adapter 5, the pressure rod 6 and the pressure cap 7, the clamps 4 can be easily and quickly disassembled. This facilitates the quick assembly and disassembly of the polyurea spraying pipeline and the polyurea spraying equipment, and allows for quick replacement of each component of the entire pipeline joint after damage, greatly facilitating the maintenance and upkeep of the entire pipeline joint and avoiding the problem of the entire component being scrapped due to the damage of some components.

[0049] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A quick-connect pipe joint structure for a polyurea spraying equipment, comprising a connecting component (1), characterized in that, Two connecting components (1) are provided, and the two connecting components (1) are connected together. A clamp (4) is provided at the position where the connecting components (1) are connected. The clamp (4) is engaged at the position where the two connecting components (1) are connected. One end of the clamp (4) is rotatably connected to an adapter (5). The adapter (5) and the clamp (4) are rotatably connected by a pin (8). A pressure rod (6) is sleeved on the adapter (5). A pressure cap (7) is provided on the adapter (5). The pressure cap (7) presses the pressure rod (6) on the end of the clamp (4) where the adapter (5) is not provided, so as to ensure that the clamp (4) stably connects the two connecting components (1) together. A pressure head (2) is provided at the outer end of the connecting component (1). The pressure head (2) is used to connect the connecting component (1) to the polyurea spraying equipment or polyurea spraying pipeline.

2. The quick-connect pipe joint structure for a polyurea spraying equipment according to claim 1, characterized in that, The connecting assembly (1) includes a connector (11) and a sealing ring (12). The two connectors (11) are provided with annular grooves (111) at their close ends. The sealing ring (12) is installed inside the annular grooves (111).

3. The quick-connect pipe joint structure for a polyurea spraying equipment according to claim 2, characterized in that, The connector (11) has a sleeve (112) on the outer side of the outer end facing outward. The space between the sleeve (112) and the outer side of the connector (11) is a pressure groove (114). The sleeve (112) has multiple slots (113) on its side.

4. The quick-connect pipe joint structure for a polyurea spraying equipment according to claim 3, characterized in that, The pressure head (2) has a pressure ring (21) at one end facing outwards, and the diameter of the pressure head (2) at one end facing outwards is larger than the diameter at one end facing inwards. The pressure head (2) has a plurality of slits (22) evenly distributed on it. The pressure ring (21) is aligned with the slot (113) and has a locking plate (23). The locking plate (23) has a set screw (24) on its outer side. The locking plate (23) is inserted into the slot (113) and the set screw (24) is pressed against the socket (112).

5. The quick-connect pipe joint structure for a polyurea spraying equipment according to claim 1, characterized in that, The clamp (4) includes a first clamping plate (41), a second clamping plate (42) and a hinge (43). The bottom ends of the first clamping plate (41) and the second clamping plate (42) are connected by the hinge (43). The top end of the first clamping plate (41) is provided with a rotating joint (411). The rotating joint (411) is provided with a shaft hole (412) in the middle. The top end of the second clamping plate (42) is provided with a pressure plate (422). The side of the pressure plate (422) is provided with an arc groove (423) for pressing the pressure rod (6) onto the pressure plate (422).

6. The quick-connect pipe joint structure for a polyurea spraying equipment according to claim 1, characterized in that, The adapter (5) has a through hole (51) in the middle and an installation connector (52) in the middle of the side of the adapter (5), and a screw (53) is provided on the installation connector (52).

7. The quick-connect pipe joint structure for a polyurea spraying equipment according to claim 6, characterized in that, The pressure rod (6) has a sleeve (61) in the middle of its side, and a sleeve hole (62) in the middle of the sleeve (61) is provided. The sleeve hole (62) is sleeved on the screw (53).

8. The quick-connect pipe joint structure for a polyurea spraying equipment according to claim 5, characterized in that, The pressure cap (7) has a threaded hole (71) in the middle and a hexagon (72) on the pressure cap (7) for turning the pressure cap (7) to press the pressure rod (6) onto the arc groove (423) of the pressure plate (422).

9. The quick-connect pipe joint structure for a polyurea spraying equipment according to claim 5, characterized in that, It also includes a rubber sleeve (3), and the inner sides of the first card plate (41) and the second card plate (42) are provided with grooves (421). The rubber sleeve (3) is embedded in the inner side of the groove (421), and the rubber sleeve (3) is fitted at the position where the two connecting components (1) are joined.

10. The quick-connect pipe joint structure for a polyurea spraying equipment according to claim 9, characterized in that, The rubber sleeve (3) has multiple anti-slip grooves (31) evenly distributed on its side to ensure that the rubber sleeve (3) is stable inside the groove (421).