EGR pipeline structure
By combining the bend assembly, universal assembly, and duct assembly, the problem of needing to replace the entire EGR pipeline structure is solved, enabling flexible adjustment and independent replacement of components, reducing maintenance costs, and improving the operating efficiency of the intake system.
Patent Information
- Application Number
- CN202520195663.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-08
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-02-08
AI Technical Summary
The existing EGR pipeline structure is a single, integral structure. After long-term use, the components age and need to be replaced as a whole, resulting in high costs.
It adopts a combination structure of bending pipe assembly, universal assembly and duct assembly. Each component can be disassembled and adjusted independently to adapt to complex angles in the engine compartment and improve the smooth operation of the intake system.
It enables flexible adjustment and independent replacement of components, reduces maintenance costs, and improves the operating efficiency and reliability of the intake system.
Smart Images
Figure CN223825141U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of engine pipeline, more specifically, the utility model relates to an EGR pipeline structure. BACKGROUND
[0002] Engine cylinder air movement has decisive influence on the formation and combustion process of mixed gas, thus also affecting the power, economy, combustion noise and harmful gas emission of the engine. Well-organized cylinder gas flow plays an important role in improving the flame propagation rate of gasoline engine, reducing combustion cycle fluctuation and adapting to lean or layer combustion. The flow of engine cylinder gas is mainly affected by the intake system, and the intake manifold directly affects the intake effect of each cylinder as a part of the intake system.
[0003] The existing EGR pipeline structure is commonly a single whole structure, but after long-term use, the components are aged, and the whole components need to be replaced, resulting in the problem of high cost. UTILITY MODEL CONTENT
[0004] In order to overcome the above-mentioned defects of the prior art, the embodiments of the utility model provide an EGR pipeline structure, and the technical problems to be solved by the utility model are that the EGR pipeline structure is commonly a single whole structure, but after long-term use, the components are aged, and the whole components need to be replaced, resulting in the problem of high cost.
[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: an EGR pipeline structure, comprising an elbow assembly, one end of the elbow assembly is rotatably connected with a universal assembly, the other end of the elbow assembly and the other end of the universal assembly are rotatably connected with a ball pipe assembly;
[0006] The ball pipe assembly comprises an outer ball pipe, one end of the outer ball pipe is fixedly connected with a second connecting column, a second screw groove is formed in the surface of the second connecting column, a first fixing ring is fixedly connected to the end of the outer ball pipe away from the second connecting column, an inner ball pipe is arranged on the inner side of the end of the outer ball pipe away from the second connecting column, a third connecting column is fixedly connected to the end of the inner ball pipe away from the outer ball pipe, a third screw groove is formed in the surface of the third connecting column, a second fixing ring is sleeved on the surface of the inner ball pipe, a sealing groove is formed at the intersection of the second fixing ring and the first fixing ring, and a sealing ring is arranged in the sealing groove.
[0007] In a preferred implementation, the universal assembly comprises a first elbow pipe, one end of the first elbow pipe is fixedly connected with a first screw pipe, the other end of the first elbow pipe is fixedly connected with a first rotating disc, the first rotating disc is provided with a second rotating disc away from the first rotating disc, the second rotating disc is fixedly connected with a second elbow pipe away from the second rotating disc, the second elbow pipe is fixedly connected with a second screw pipe at one end away from the second rotating disc, and the surfaces of the first elbow pipe and the second elbow pipe are symmetrically sleeved with limiting rings, and rotating grooves are formed in one side of the limiting rings.
[0008] In a preferred implementation, the elbow pipe assembly comprises a bellows pipe, one end of the bellows pipe is fixedly connected with a first steel ring, the other end of the bellows pipe is fixedly connected with a second steel ring, the first steel ring is fixedly connected with a first connecting column away from the bellows pipe, and a first screw groove is formed in the surface of the first connecting column.
[0009] In a preferred implementation, the first fixed ring and the second fixed ring are fixedly connected through bolts, and the sealing property between the first fixed ring and the second fixed ring is ensured through a single sealing ring.
[0010] In a preferred implementation, the second screw pipe is provided with a screw opening in the inner wall, the screw opening is consistent with the first screw groove, the inner diameter of the second screw pipe is consistent with the outer diameter of the third connecting column, and the screw opening in the inner wall of the second screw pipe is matched with the third screw groove.
[0011] In a preferred implementation, the second steel ring is provided with a screw opening in the inner wall, the screw opening is matched with the second screw groove, the inner diameter of the second steel ring is consistent with the outer diameter of the second connecting column, and the outer diameter of the first connecting column is consistent with the inner diameter of the second screw pipe.
[0012] The technical effects and advantages of the utility model are as follows:
[0013] 1. The utility model discloses a bending pipe assembly, universal assembly and bulb pipe assembly are used in cooperation, can directly have the steering function through three assemblies in the later use, can adapt to various tricky angles in the engine compartment when using, to guarantee the smooth operation of the air intake system, improve the use effect, and three parts can be independently disassembled and replaced, solve the problem of high cost caused by the need to replace the overall part after long-term use and part aging.
[0014] 2. The utility model discloses a bending pipe assembly, universal assembly and bulb pipe assembly, the bellows pipe in the bending pipe assembly can freely change direction, the first elbow pipe and the second elbow pipe in the universal assembly are rotated through the first rotating disc and the second rotating disc in the rotating groove, and the inner bulb pipe and the outer bulb pipe in the bulb pipe assembly can be rotated, the inner bulb pipe is limited through the second fixed ring, and all parts can be adjusted through the use scene in the later use. DRAWINGS
[0015] Figure 1 It is the whole structure schematic view of the utility model.
[0016] Figure 2 It is the elbow pipe assembly structure schematic view of the utility model.
[0017] Figure 3 It is the universal assembly structure exploded view of the utility model.
[0018] Figure 4 It is the bulb pipe assembly structure exploded view of the utility model.
[0019] Figure 5 It is the bulb pipe assembly structure sectional view of the utility model.
[0020] The figure mark is: 1, elbow pipe assembly;11, bellows;12, first steel ring;13, second steel ring;14, first connecting column;15, first screw groove;2, universal assembly;21, first elbow pipe;22, first screw pipe;23, first rotating disc;24, second rotating disc;25, second elbow pipe;26, second screw pipe;27, limit ring;28, rotating groove;29, connecting flange;3, bulb pipe assembly;31, outer bulb pipe;32, second connecting column;33, second screw groove;34, first fixed ring;35, inner bulb pipe;36, third connecting column;37, third screw groove;38, second fixed ring;39, sealing groove;310, sealing ring. DETAILED DESCRIPTION
[0021] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0022] The utility model provides a kind of EGR pipeline structure, including elbow pipe assembly 1, elbow pipe assembly 1 one end is rotatably connected with universal assembly 2, and elbow pipe assembly 1 other end and universal assembly 2 other end are rotatably connected with bulb pipe assembly 3;
[0023] The ball tube assembly 3 comprises an outer ball tube 31, one end of the outer ball tube 31 is fixedly connected with a second connecting column 32, a second screw groove 33 is formed in the surface of the second connecting column 32, the outer ball tube 31 is fixedly connected with a first fixing ring 34 at the end away from the second connecting column 32, an inner ball tube 35 is arranged on the inner side of the end of the outer ball tube 31 away from the second connecting column 32, the inner ball tube 35 is fixedly connected with a third connecting column 36 at the end away from the outer ball tube 31, a third screw groove 37 is formed in the surface of the third connecting column 36, the inner ball tube 35 is sleeved with a second fixing ring 38, the second fixing ring 38 and the first fixing ring 34 are both provided with sealing grooves 39, and sealing rings 310 are arranged in the sealing grooves 39.
[0024] Wherein, the universal assembly 2 comprises a first elbow pipe 21, one end of the first elbow pipe 21 is fixedly connected with a first screw pipe 22, the other end of the first elbow pipe 21 is fixedly connected with a first rotating disc 23, the first rotating disc 23 is provided with a second rotating disc 24 away from the first elbow pipe 21, the second rotating disc 24 is fixedly connected with a second elbow pipe 25 away from the first rotating disc 23, the second elbow pipe 25 is fixedly connected with a second screw pipe 26 at the end away from the second rotating disc 24, the surfaces of the first elbow pipe 21 and the second elbow pipe 25 are symmetrically sleeved with limiting rings 27, and rotating grooves 28 are formed in one side of the limiting rings 27.
[0025] Wherein, the elbow pipe assembly 1 comprises a corrugated pipe 11, one end of the corrugated pipe 11 is fixedly connected with a first steel ring 12, the other end of the corrugated pipe 11 is fixedly connected with a second steel ring 13, the first steel ring 12 is fixedly connected with a first connecting column 14 at the end away from the corrugated pipe 11, and a first screw groove 15 is formed in the surface of the first connecting column 14.
[0026] Wherein, the first fixing ring 34 and the second fixing ring 38 are fixedly connected through bolts, and the single sealing ring 310 is arranged between the first fixing ring 34 and the second fixing ring 38 to ensure the sealing property.
[0027] Wherein, the inner wall of the second screw pipe 26 is provided with a screw opening consistent with the first screw groove 15, the inner diameter of the second screw pipe 26 is consistent with the outer diameter of the third connecting column 36, and the screw opening formed in the inner wall of the second screw pipe 26 is consistent with the third screw groove 37; the consistent size improves the stable sealing property of the connecting part.
[0028] Wherein, the inner wall of the second steel ring 13 is provided with a screw opening consistent with the second screw groove 33, the inner diameter of the second steel ring 13 is consistent with the outer diameter of the second connecting column 32, and the outer diameter of the first connecting column 14 is consistent with the inner diameter of the second screw pipe 26; the connection stability of the models of each component can be improved during later use.
[0029] The working principle of the utility model:
[0030] The bellows 11 in the bend pipe assembly 1 can be freely changed direction, the first bend pipe 21 and the second bend pipe 25 in the universal assembly 2 are rotated through the first rotating disc 23 and the second rotating disc 24 in the rotating groove 28, the inner ball pipe 35 and the outer ball pipe 31 in the ball pipe assembly 3 can be rotated, the inner ball pipe 35 is limited through the second fixing ring 38, and all parts can be adjusted through use scene in later use.
[0031] Finally, it should be noted that: first, in the description of the present application, it should be pointed out that, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, which can be mechanical connection or electrical connection, or the communication between two elements, or direct connection, "up", "down", "left", "right" and the like are only used to indicate relative positional relationship, when the absolute position of the described object changes, the relative positional relationship may change;
[0032] Secondly: the utility model discloses the embodiment of the drawings, only relate to the structure involved in the embodiment of the present disclosure, other structures can refer to the usual design, under the condition of no conflict, the same embodiment and different embodiments of the utility model can be combined with each other;
[0033] Finally: the above only for the preferred embodiment of the utility model has, and does not use for limiting the utility model, any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the utility model, should be included in the protection scope of the utility model.
Claims
1. An EGR pipeline structure, comprising a bend assembly (1), characterized in that: One end of the bend assembly (1) is rotatably connected to a universal assembly (2), and the other end of the bend assembly (1) and the other end of the universal assembly (2) are both rotatably connected to a ball tube assembly (3); The X-ray tube assembly (3) includes an outer X-ray tube (31), one end of which is fixedly connected to a second connecting post (32). The surface of the second connecting post (32) is provided with a second threaded groove (33). The end of the outer X-ray tube (31) away from the second connecting post (32) is fixedly connected to a first fixing ring (34). An inner X-ray tube (35) is provided on the inner side of the end of the outer X-ray tube (31) away from the second connecting post (32). The end of the inner X-ray tube (35) away from the outer X-ray tube (31) is fixedly connected to a third connecting post (36). The surface of the third connecting post (36) is provided with a third threaded groove (37). A second fixing ring (38) is sleeved on the surface of the inner X-ray tube (35). A sealing groove (39) is provided at the intersection of the second fixing ring (38) and the first fixing ring (34). A sealing ring (310) is provided in the sealing groove (39).
2. The EGR pipeline structure according to claim 1, characterized in that: The universal assembly (2) includes a first bent tube (21), one end of which is fixedly connected to a first screw tube (22), and the other end of which is fixedly connected to a first rotating disk (23). A second rotating disk (24) is provided on the side of the first rotating disk (23) away from the first bent tube (21). A second bent tube (25) is fixedly connected on the side of the second rotating disk (24) away from the first rotating disk (23). A second screw tube (26) is fixedly connected on the end of the second bent tube (25) away from the second rotating disk (24). Limiting rings (27) are symmetrically sleeved on the surfaces of the first bent tube (21) and the second bent tube (25). A rotating groove (28) is provided on one side of each limiting ring (27).
3. The EGR pipeline structure according to claim 2, characterized in that: The bending assembly (1) includes a corrugated pipe (11), one end of which is fixedly connected to a first steel ring (12), and the other end of which is fixedly connected to a second steel ring (13). The end of the first steel ring (12) away from the corrugated pipe (11) is fixedly connected to a first connecting post (14), and the surface of the first connecting post (14) is provided with a first threaded groove (15).
4. The EGR pipeline structure according to claim 1, characterized in that: The first fixing ring (34) and the second fixing ring (38) are fixedly connected by bolts, and the first fixing ring (34) and the second fixing ring (38) are sealed by a single sealing ring (310).
5. An EGR pipeline structure according to claim 3, characterized in that: The inner wall of the second screw tube (26) is provided with a screw opening that is consistent with the first screw groove (15). The inner diameter of the second screw tube (26) is consistent with the outer diameter of the third connecting post (36). The screw opening on the inner wall of the second screw tube (26) matches the third screw groove (37).
6. An EGR pipeline structure according to claim 5, characterized in that: The inner wall of the second steel ring (13) is provided with a threaded opening that matches the second threaded groove (33). The inner diameter of the second steel ring (13) is the same as the outer diameter of the second connecting post (32), and the outer diameter of the first connecting post (14) is the same as the inner diameter of the second threaded tube (26).