Pipeline assembly for air outlet braking system of air compressor

Abstract

The utility model belongs to the technical field of air compressor air outlet brake pipeline connection, and relates to an air compressor air outlet brake system pipeline assembly, which comprises an air compressor steel pipe, an adapter, a nylon pipe and an air treatment unit modeling hole, the air compressor steel pipe is communicated with one end of the nylon pipe through the adapter, and a nut seat is screwed in the air treatment unit modeling hole. And the other end of the nylon pipe is riveted with a quick connector which is detachably mounted in the nut seat. The pneumatic brake system is connected through the adapter, the quick-plug connector and the nylon pipe, the pneumatic brake system is not limited by narrow assembly space at the tail end of the steel pipe any more during assembly, the quality problem possibly caused by the fact that manufacturing precision is difficult to guarantee and assembly is difficult is reduced, and powerful guarantee is provided for safe braking and efficient operation of commercial vehicles.

Description

Technical Field

[0001] This utility model relates to the field of air compressor outlet brake pipeline connection technology, and in particular to a pipeline assembly for an air compressor outlet brake system. Background Technology

[0002] Air braking systems are an important component of modern transportation and are widely used in various vehicles to ensure driving safety and improve transportation efficiency. Air braking systems use compressed air as a power source to achieve vehicle braking control and are characterized by high efficiency and reliability. The working principle of air braking systems is based on compressed air technology.

[0003] When the engine is running, the air compressor works, delivering compressed air through pipelines to the air handling unit and then to the air reservoir to supply air to the entire braking system.

[0004] However, in the current practical application of air braking systems, major OEMs generally use steel pipes as connecting pipelines when connecting air compressors and air handling units. However, the assembly space at the end of the steel pipe is small, which places extremely high demands on the pipe's profile and manufacturing precision.

[0005] In actual production, meeting stringent precision requirements not only increases manufacturing difficulty and cost, but also leads to numerous difficulties in the assembly of steel pipes, seriously affecting production efficiency and product quality. Utility Model Content

[0006] In order to solve the above-mentioned existing technical problems, this utility model provides a pipeline assembly for an air compressor outlet braking system.

[0007] The technical solution of this utility model is achieved through the following scheme: an air compressor outlet braking system pipeline assembly, including an air compressor steel pipe, an adapter, a nylon pipe and an air treatment unit molding hole, wherein the air compressor steel pipe is connected to one end of the nylon pipe through the adapter, a nut seat is screwed into the air treatment unit molding hole, and a quick-connect connector is riveted to the other end of the nylon pipe, wherein the quick-connect connector is detachably installed in the nut seat;

[0008] The adapter includes a connector nut and a bamboo-joint insert. The connector nut engages with the bamboo-joint insert via the insert engagement surface. The connector nut is screwed onto the air compressor steel pipe via an internal thread.

[0009] The nylon tube (4) is detachably fitted with a partially magnetic pipe limiting component (8).

[0010] The above technical solutions utilize adapters, quick-connect fittings, and nylon tubing for the connection of the air braking system. Compared to the traditional high-precision installation of rigid pipes, nylon tubing improves manufacturing and assembly tolerance, reduces manufacturing costs, ensures pipe strength, effectively increases airflow, and eliminates the limitation of narrow assembly space at the end of the steel pipe during assembly. The detachable installation of quick-connect fittings and nut seats, and the screw connection between the adapter and the air compressor steel pipe, greatly improve assembly efficiency, avoid low production efficiency caused by assembly difficulties, and reduce quality problems that may arise from difficulty in ensuring manufacturing precision and assembly. This provides strong support for the safe and efficient operation of commercial vehicle braking.

[0011] Preferably, the bamboo-joint insert includes an insert body, a first sealing ring, an outer sealing cone surface, and an outer cone surface. One end of the insert body is engaged with the insert snap-fit ​​surface via the outer cone surface. The first sealing ring is installed on the outer sealing cone surface, and the outer sealing cone surface abuts against the air compressor steel pipe.

[0012] Preferably, the other end of the ferrule body is provided with a first toothed end, which is riveted to a nylon tube.

[0013] Preferably, the air compressor steel pipe includes an air compressor outlet steel pipe, an inner sealing cone surface, and an external thread. The air compressor outlet steel pipe is screwed to a connector nut via the external thread. The inner sealing cone surface is provided on the inner cavity of the screw-in end of the air compressor outlet steel pipe, and the inner sealing cone surface abuts against the outer sealing cone surface.

[0014] Through the above technical solutions, the air compressor steel pipe is screwed to the connector nut, and under the pressure of the threaded push, the outer sealing cone surface and the inner sealing cone surface will abut more tightly. The first sealing ring can fill the tiny gap between the two, and the outer cone surface of the insert body and the insert snap-fit ​​surface of the connector nut will also be subjected to force and abut tightly, effectively preventing the leakage of compressed air, improving the sealing performance of the pipeline connection, and ensuring that the air braking system can work stably and reliably.

[0015] Preferably, the nut seat is screwed into the air treatment unit molding hole via an external connecting thread, the screw-in end of the nut seat is provided with a retaining spring, the other end of the nut seat is provided with a second sealing ring between it and the air treatment unit molding hole, and the nut seat has an inner hole.

[0016] Preferably, the quick-connect end of the quick-connect connector engages with the inner hole, and the other end of the quick-connect connector is provided with a second reverse tooth end, through which the quick-connect connector is riveted to the nylon tube.

[0017] Preferably, the quick-connect connector includes a quick-connect body, a first inner sealing ring, a second inner sealing ring, and a retaining groove. The quick-connect end of the quick-connect body has a retaining groove, which engages with a retaining spring. The first inner sealing ring and the second inner sealing ring are installed on the quick-connect body.

[0018] Through the above technical solutions, the design of the nut seat and quick-connect coupling makes the entire system more integrated, and the disassembly and installation are convenient and efficient. It realizes the quick connection between the pipeline joint and the valve body, which not only simplifies the installation process and saves time and labor costs, but also facilitates later maintenance and repair.

[0019] In summary, this utility model has the following beneficial effects:

[0020] 1. This utility model uses adapters, quick-connect couplings, and nylon tubing to connect the air braking system. Compared with the traditional high-precision installation of rigid pipes, nylon tubing improves the manufacturing and assembly tolerance, reduces manufacturing costs, ensures pipe strength, effectively increases airflow, and eliminates the limitation of narrow assembly space at the end of the steel pipe during assembly. The detachable installation of the quick-connect coupling and nut seat, and the screw connection between the adapter and the air compressor steel pipe, greatly improve assembly efficiency, avoid the problem of low production efficiency caused by assembly difficulties, and reduce quality problems that may arise from difficulty in ensuring manufacturing precision and assembly difficulties, thus providing strong protection for the safe and efficient operation of commercial vehicle braking.

[0021] 2. The air compressor steel pipe is screwed to the connector nut, and under the pressure of the threaded push, the outer sealing cone surface and the inner sealing cone surface will abut more tightly. The first sealing ring can fill the tiny gap between the two, and the outer cone surface of the insert body and the insert snap-fit ​​surface of the connector nut will also be subjected to force and abut tightly, effectively preventing the leakage of compressed air, improving the sealing performance of the pipeline connection, and ensuring that the air braking system can work stably and reliably.

[0022] 3. The design of the nut seat and quick-connect coupling makes the entire system more integrated, and the disassembly and installation are convenient and efficient. It realizes the quick connection between the pipeline joint and the valve body, which not only simplifies the installation process and saves time and labor costs, but also facilitates later maintenance and repair.

[0023] 4. The reverse tooth riveting effectively increases the friction at the connection point with the nylon tube, preventing the nylon tube from falling off due to gas pressure or external force during use, thus improving the stability and reliability of the entire pipeline system. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0025] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0026] Figure 3 This is a schematic diagram of the adapter of this utility model from a perspective;

[0027] Figure 4 This is a schematic diagram of the nut seat structure of this utility model;

[0028] Figure 5 This is a schematic diagram of the air compressor steel pipe structure of this utility model;

[0029] Figure 6 This is a schematic diagram of the quick-connect connector structure of this utility model;

[0030] Figure 7 This is a schematic diagram of the pipeline limiting component structure of this utility model;

[0031] Figure 8 This is a schematic diagram of the movement state of the pipeline limiting component of this utility model.

[0032] Explanation of reference numerals in the attached drawings: 1. Air compressor steel pipe; 11. Air compressor outlet steel pipe; 12. Inner sealing cone surface; 13. External thread;

[0033] 2. Connector nut; 21. Internal thread; 22. Insert snap-fit ​​surface; 3. Bamboo-joint insert; 31. First sealing ring; 32. Outer sealing cone surface; 33. Outer cone surface;

[0034] 4. Nylon tubing; 5. Air handling unit vents;

[0035] 6. Nut seat; 61. External connecting thread; 62. Second sealing ring; 63. Inner hole; 64. Snap ring;

[0036] 7. Quick-connect fitting; 71. First inner sealing ring; 72. Second inner sealing ring; 73. Anti-reverse groove;

[0037] 8. Pipeline limiting component; 81. First fastener; 811. First magnetic block; 82. Second fastener; 821. First metal block; 83. Second magnetic block; 84. Third magnetic block; 85. Rotating shaft;

[0038] 91. First reverse tooth end; 92. Second reverse tooth end. Detailed Implementation

[0039] To better understand the above-mentioned objectives, features and advantages of this utility model, the present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0040] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification. The present invention will be further described in detail below with reference to the accompanying drawings.

[0041] A piping assembly for an air compressor outlet braking system, such as Figures 1-6As shown, the system includes an air compressor steel pipe 1, an adapter, a nylon pipe 4, and an air treatment unit molding hole 5. The air compressor steel pipe 1 is connected to one end of the nylon pipe 4 via the adapter. A nut seat 6 is screwed into the air treatment unit molding hole 5. A quick-connect fitting 7 is riveted to the other end of the nylon pipe 4. The quick-connect fitting 7 can be detachably installed in the nut seat 6. The adapter is a DKO fitting. The nylon pipe 4 is an 18*2 nylon pipe with an outer diameter of 18mm and a wall thickness of 2mm. It can be bent and formed. Its material is plastic, especially polyamide. The nylon pipe 4 has good flexibility, which greatly improves the manufacturing and assembly error tolerance and effectively increases the air volume. The nylon pipe 4 can be bent and formed, and its direction can be flexibly adjusted in complex installation environments, avoiding installation difficulties caused by space limitations. The pipe joint and valve body can be quickly connected.

[0042] like Figure 2 and Figure 3 As shown, the adapter includes a connector nut 2 and a bamboo joint insert 3. The connector nut 2 engages with the bamboo joint insert 3 through the insert engagement surface 22. The connector nut 2 is screwed onto the air compressor steel pipe 1 through the internal thread 21. The bamboo joint insert 3 itself only seals against the insert engagement surface 22 of the connector nut 2, and complete sealing assembly is achieved through the subsequent screwing in of the air compressor steel pipe 1.

[0043] The bamboo-joint insert 3 includes an insert body, a first sealing ring 31, an outer sealing cone surface 32, and an outer cone surface 33. One end of the insert body is engaged with the insert snap-fit ​​surface 22 through the outer cone surface 33. The first sealing ring 31 is installed on the outer sealing cone surface 32. The outer sealing cone surface 32 abuts against the air compressor steel pipe 1. The outer sealing cone surface 32 and the inner sealing cone surface 12 of the air compressor steel pipe 1 are compatible. The bamboo-joint insert 3 and the air compressor steel pipe 1 are sealed and connected through the first sealing ring 31.

[0044] The air compressor steel pipe 1 includes an air compressor outlet steel pipe 11, an inner sealing cone surface 12, and an external thread 13. The air compressor outlet steel pipe 11 is screwed into the connector nut 2 through the external thread 13. The inner sealing cone surface 12 is opened on the inner cavity of the screw-in end of the air compressor outlet steel pipe 11. The inner sealing cone surface 12 abuts against the outer sealing cone surface 32. When the air compressor steel pipe 1 is screwed into the connector nut 2 through the inner thread 21, it will further compress the bamboo joint insert 3, so that it forms a tighter seal with the connector nut 2, effectively preventing gas leakage and ensuring the sealing and stability of the system.

[0045] The internal thread 21 of the connector nut 2 is screwed into the external thread of the air compressor steel pipe 1. The bamboo joint insert 3 is snapped into the connector nut 2 through the insert snap-fit ​​surface 22. The split design facilitates the assembly and disassembly of each component.

[0046] like Figure 2 and Figure 4As shown, the nut seat 6 is screwed into the air treatment unit molding hole 5 via an external connecting thread 61. The screw-in end of the nut seat 6 is provided with a retaining spring 64, and the other end of the nut seat 6 is provided with a second sealing ring 62 between it and the air treatment unit molding hole 5. The nut seat 6 has an inner hole 63. The end of the nut seat 6 with the retaining spring 64 is screwed into the air treatment unit molding hole 5, and the other end protrudes out of the air treatment unit molding hole 5. The corner of the protruding part is provided with a second sealing ring 62, which is sealed and connected to the air treatment unit molding hole 5.

[0047] like Figure 2 and Figure 6 As shown, the quick-connect connector 7 has a quick-connect end that snaps into the inner hole 63, making the connection between the pipeline and the air handling unit more convenient and faster. Simply insert the quick-connect connector 7 into the inner hole 63 of the nut seat 6 to complete the connection between the pipeline and the air handling unit, simplifying the installation steps and improving installation efficiency. The quick-connect connector 7 includes a quick-connect body, a first inner sealing ring 71, a second inner sealing ring 72, and a backstop groove 73. The quick-connect body has a backstop groove 73 at the quick-connect end, which snaps into a retaining spring 64, mechanically locking and restricting the quick-connect connector 7 from axial movement. Even if the system is subjected to vibration or external impact during operation, the reliability of the connection can be guaranteed. The quick-connect body is equipped with a first inner sealing ring 71 and a second inner sealing ring 72. The multiple sealing structure of the first inner sealing ring 71 and the second inner sealing ring 72 improves the pressure resistance of the system. The first inner sealing ring 71 and the second inner sealing ring 72 are sealed and snapped into the inner hole 63 of the nut seat 6.

[0048] The other end of the insert body is provided with a first toothed end 91, which is riveted to a nylon tube 4. The other end of the quick connector 7 is provided with a second toothed end 92, which is riveted to the nylon tube 4 through the second toothed end 92. Both ends of the nylon tube 4 are riveted and sealed to the first toothed end 91 and the second toothed end 92 respectively by a press fitting machine (existing technology). The inverted toothed structure has high friction and can effectively prevent gas leakage at the connection point after being press-fitted and riveted to the nylon tube 4, ensuring the efficiency and safety of gas transmission and enabling the entire system to withstand higher gas pressure.

[0049] The riveting and sealing assembly of nylon tube 4 and components is relatively simple, without the need for expensive connectors or complex processing technology. As an existing technology, the press fitting machine has relatively low equipment cost and can be reused, reducing the overall production cost of the device and improving economic efficiency.

[0050] like Figure 7 and Figure 8As shown, a partially magnetic pipe limiting component 8 is detachably installed on the nylon tube 4. The pipe limiting component 8 includes a first fastener 81 and a second fastener 82. The first fastener 81 is composed of a first arc plate and a first L-shaped support, which are integrally formed. The second fastener 82 is composed of a second arc plate and a second L-shaped support, which are also integrally formed. The ends of the first arc plate and the second arc plate are connected by a pivot 85 and can rotate relative to each other to fasten and limit the nylon tube 4. A first magnetic block is installed on the inner wall of the first L-shaped support. 811 is positioned opposite to the first metal block 821 on the inner wall of the second L-shaped support and is locked by magnetic attraction. The bases of the first L-shaped support and the second L-shaped support are respectively embedded with the second magnetic block 83 and the third magnetic block 84. During installation, the fastener is fastened to the nylon tube 4, and the second magnetic block 83 and the third magnetic block 84 are attracted to the nearby metal structure (such as the frame) to limit the nylon tube 4. After all the tube structures in the module are connected, the fastener is removed, and the tube structures are uniformly laid out, bundled and fixed.

[0051] Working principle: First, the 18x2 nylon tube 4 is cut into tubes, and then the tube is formed by existing forming equipment. The bamboo joint insert 3 is assembled with the first sealing ring 31, and then assembled with the connector nut 2. Finally, the 18*2 nylon tube 4 is riveted to the first toothed end 91 of the DKO connector using a press fitting machine.

[0052] Further, the quick-connect fitting 7 is assembled with the first inner sealing ring 71 and the second inner sealing ring 72. Then, the other end of the 18x2 nylon tube 4 is riveted to the second toothed end 92 of the quick-connect fitting 7 using a press fitting machine to complete the assembly of the pipeline product.

[0053] During the installation of the pipeline product, the nylon tube 4 is first limited by the pipeline limiting component 8 to prevent it from becoming entangled or misaligned during subsequent installation;

[0054] The second sealing ring 62 and the snap ring 64 are then assembled onto the nut seat 6. The nut seat 6 is then fixed onto the air unit molding hole using a wrench. The internal thread 21 of the DKO connector is then connected to the external thread 13 of the air compressor outlet steel pipe 11. The sealing contact is achieved through the first sealing ring 31, the outer sealing cone surface 32, and the inner sealing cone surface 12. The other end, the quick-connect connector 7, is inserted into the nut seat 6 and assembled. The snap ring 64 and the anti-reverse groove 73 limit the movement. The first inner sealing ring 71 and the second inner sealing ring 72 cooperate with the inner hole 63 of the nut seat 6 for sealing.

[0055] After all the tubular structures within the module are connected, remove the fasteners and uniformly lay, bundle, and fix the tubular structures.

[0056] Finally, compressed air enters from the air compressor steel pipe 1, flows out through the molding hole 5 of the air handling unit, and enters the air handling unit.

[0057] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A piping assembly for an air compressor outlet braking system, characterized in that: The air compressor steel pipe (1), adapter, nylon pipe (4) and air treatment unit molding hole (5) are included. The air compressor steel pipe (1) is connected to one end of the nylon pipe (4) through the adapter. A nut seat (6) is screwed into the air treatment unit molding hole (5). A quick connector (7) is riveted to the other end of the nylon pipe (4). The quick connector (7) can be detachably installed in the nut seat (6). The adapter includes a connector nut (2) and a bamboo joint insert (3). The connector nut (2) engages with the bamboo joint insert (3) through the insert engagement surface (22). The connector nut (2) is screwed with the air compressor steel pipe (1) through the internal thread (21). The nylon tube (4) is detachably fitted with a partially magnetic pipe limiting component (8).

2. The piping assembly for an air compressor outlet braking system according to claim 1, characterized in that: The bamboo-joint insert (3) includes an insert body, a first sealing ring (31), an outer sealing cone surface (32) and an outer cone surface (33). One end of the insert body is engaged with the insert snap-fit ​​surface (22) through the outer cone surface (33). The first sealing ring (31) is installed on the outer sealing cone surface (32), and the outer sealing cone surface (32) abuts against the air compressor steel pipe (1).

3. The piping assembly for an air compressor outlet braking system according to claim 2, characterized in that: The other end of the insert body is provided with a first toothed end (91), and the first toothed end (91) is riveted to a nylon tube (4).

4. The piping assembly for an air compressor outlet braking system according to claim 2, characterized in that: The air compressor steel pipe (1) includes an air compressor outlet steel pipe (11), an inner sealing cone surface (12) and an external thread (13). The air compressor outlet steel pipe (11) is screwed to the connector nut (2) through the external thread (13). The inner sealing cone surface (12) is opened on the inner cavity of the screw-in end of the air compressor outlet steel pipe (11), and the inner sealing cone surface (12) abuts against the outer sealing cone surface (32).

5. The piping assembly for an air compressor outlet braking system according to claim 1, characterized in that: The nut seat (6) is screwed into the air treatment unit molding hole (5) via an external connecting thread (61). The screw-in end of the nut seat (6) is provided with a retaining ring (64). The other end of the nut seat (6) is provided with a second sealing ring (62) between it and the air treatment unit molding hole (5). The nut seat (6) has an inner hole (63).

6. The piping assembly for an air compressor outlet braking system according to claim 5, characterized in that: The quick-connect connector (7) has a quick-connect end that engages with the inner hole (63), and the other end of the quick-connect connector (7) is provided with a second reverse tooth end (92). The quick-connect connector (7) is riveted to the nylon tube (4) through the second reverse tooth end (92).

7. The piping assembly for an air compressor outlet braking system according to claim 6, characterized in that: The quick-connect connector (7) includes a quick-connect body, a first inner sealing ring (71), a second inner sealing ring (72), and a backstop groove (73). The quick-connect body has a backstop groove (73) at the quick-connect end. The backstop groove (73) engages with a snap ring (64). The quick-connect body is equipped with the first inner sealing ring (71) and the second inner sealing ring (72).

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