Automobile flame-retardant corrugated pipe

Abstract

The utility model is suitable for the technical field of corrugated pipes, and provides an automobile flame-retardant corrugated pipe which comprises a corrugated pipe body, the two ends of the corrugated pipe body are fixedly connected with a first connecting edge and a second connecting edge respectively, a connecting assembly comprises a connecting sleeve, a supporting sleeve is installed in the connecting sleeve, and a plurality of elastic pieces are installed on the supporting sleeve. When the first connecting edge is inserted between the connecting sleeve and the supporting sleeve, the locking nut on the connecting sleeve is rotated, the conical sleeve on the locking nut abuts against the outer walls of the elastic pieces, and when the locking nut is rotated, the elastic pieces are tightened, then the first connecting edge is fixed, the corrugated pipe body is fixed conveniently, and disassembly and assembly are more convenient. The fixing assembly comprises a fixing sleeve, a fixing ring is installed in the fixing sleeve, the second connecting edge is inserted between the fixing sleeve and the fixing ring, the outer wall of the second connecting edge is extruded through a plurality of locking nuts, then the second connecting edge is fixed, meanwhile, a plurality of cooling fins are installed on the fixing sleeve, and the cooling area of the fixing sleeve and the cooling area of the tail end of the corrugated pipe body are increased.

Description

Technical Field

[0001] The utility model belongs to the technical field of corrugated pipes, and in particular relates to a flame-retardant corrugated pipe for automobiles. Background Art

[0002] In the current field of bellows technology, bellows mainly include metal bellows, bellows expansion joints, bellows heat exchange tubes, diaphragm boxes and metal hoses. Metal bellows are mainly used to compensate for pipeline thermal deformation, shock absorption, and absorb pipeline settlement deformation. They are widely used in petrochemical, instrumentation, aerospace, chemical, electric power, water conservancy, metallurgy and other industries. Plastic and other materials of bellows play an irreplaceable role in media transportation, power threading, machine tools, home appliances and other fields. In the automotive industry, bellows are mostly used as exhaust pipes.

[0003] The utility model patent with the authorization announcement number CN204113419U discloses a bellows connected to an automobile engine. The automobile exhaust bellows includes an exhaust bellows body, the exhaust bellows body includes an intake pipe section connected to the exhaust port of the engine, the intake pipe section is connected to the end of the bellows section, and the exhaust pipe section is connected to the end of the bellows section, the outer side of the bellows section is sleeved with a heat recovery sleeve, the heat recovery sleeve is fixedly connected to the bellows body, and a heat recovery chamber is formed between the heat recovery sleeve and the bellows body, one end of the heat recovery chamber is provided with an air inlet, and the other end of the heat recovery chamber is provided with an air outlet. The utility model can be used to collect the heat energy of automobile exhaust, and the collected heat energy can be used to increase the temperature in the car or to quickly increase the temperature of the water tank.

[0004] However, the above patent has the following shortcomings:

[0005] The above patent achieves the purpose of saving energy by setting up a heat recovery chamber to raise the vehicle temperature or water tank temperature with excess heat energy. However, when the bellows is used in a car exhaust pipe, it needs to be installed on the car pipe. The ordinary installation method only uses bolts to fix it. The bellows does not need to be disassembled when replaced. At the same time, due to the exhaust gas discharged by the flame retardant pipe, the heat is high and the heat dissipation efficiency is low. Utility Model Content

[0006] The utility model provides a flame retardant corrugated pipe for automobile, aiming to solve the problems mentioned in the above background that the common installation method is only fixed with bolts, the corrugated pipe does not need to be disassembled when replaced, and the exhaust gas discharged by the flame retardant pipe has high heat and low heat dissipation efficiency.

[0007] The utility model is implemented as follows: an automobile flame-retardant corrugated pipe comprises a corrugated pipe body;

[0008] The bellows body has a first annular connecting edge fixedly connected to one side thereof, and a second annular connecting edge fixedly connected to the other side thereof;

[0009] A connection assembly, comprising a connection sleeve with threads on the outer surface, a plurality of elastic sheets are arranged on the side wall of the connection sleeve, a support sleeve is arranged inside the connection sleeve, and the connection edge is inserted between the connection sleeve and the support sleeve;

[0010] A locking nut is threadedly connected to the outer wall of the connecting sleeve, a conical sleeve is installed on the side wall of the locking nut, and the conical sleeve is arranged on the outer walls of the plurality of elastic sheets;

[0011] A fixing assembly is used to fix the bellows body, and the fixing assembly is detachably connected to the second connecting edge.

[0012] Preferably, the inner wall of the bellows body is provided with a fire-resistant layer; in this solution, the fire-resistant layer improves the fire resistance of the inner wall of the bellows body, thereby increasing its service life.

[0013] Preferably, a connecting flange is fixedly connected to the side wall of the connecting sleeve, and the connecting flange is fixedly connected to the supporting sleeve; in this solution, the pipeline of the automobile is connected via the connecting flange.

[0014] Preferably, the connecting flange is provided with a plurality of connecting holes penetrating the connecting flange;

[0015] The plurality of connection holes are arranged circumferentially around the center of the connection flange; in this solution, the connection flange is installed on the automobile pipeline by passing a plurality of matching bolts through the plurality of connection holes.

[0016] Preferably, the fixing assembly comprises a fixing sleeve, and a fixing ring is fixedly mounted on the inner wall of the fixing sleeve;

[0017] The second connecting edge is inserted between the fixing sleeve and the fixing ring; in this solution, the second connecting edge is inserted between the fixing sleeve and the fixing ring, and then the fixing assembly is installed on the bellows body.

[0018] Preferably, a plurality of fixing bolts are threadedly connected to the outer wall of the fixing sleeve, and a pressure block is fixedly installed after the plurality of fixing bolts are threadedly connected to the fixing sleeve; in this scheme, by rotating the plurality of fixing bolts, the plurality of fixing bolts are pressed against the outer wall of the connecting side two through the pressure block, thereby fixing the corrugated pipe body.

[0019] Preferably, a plurality of heat dissipation fins are fixedly mounted on the outer wall of the fixing sleeve, and the plurality of heat dissipation fins are evenly distributed on the outer wall of the fixing sleeve;

[0020] A heat dissipation ring is installed on the plurality of heat dissipation fins; in this solution, the contact area between the fixed sleeve and the air is increased by using the plurality of heat dissipation fins, thereby improving the heat dissipation efficiency of the tail end of the bellows body.

[0021] Preferably, a connecting frame is fixedly mounted on the outer wall of the fixing sleeve, and a fixing plate is fixedly mounted on the connecting frame;

[0022] The fixing plate is provided with two fixing holes penetrating the fixing plate. In this scheme, the fixing plate is installed on the chassis of the automobile by passing through the fixing holes through matching bolts, thereby limiting the position of the bellows body and reducing its vibration when the automobile is running.

[0023] Compared with the prior art, the utility model has the following beneficial effects: the utility model is a flame-retardant corrugated pipe for automobiles,

[0024] 1. A support sleeve is installed inside the connecting sleeve, and a plurality of elastic sheets are installed on the supporting sleeve. When the connecting edge 1 is inserted between the connecting sleeve and the supporting sleeve, the locking nut on the connecting sleeve is rotated, and the conical sleeve on the locking nut is used to contact the outer wall of the elastic sheet. When the locking nut is rotated, the plurality of elastic sheets are tightened, thereby fixing the connecting edge 1, which is convenient for fixing the main body of the bellows and making disassembly and assembly more convenient;

[0025] 2. The fixing assembly includes a fixing sleeve, a fixing ring is installed in the fixing sleeve, and the connecting edge 2 is inserted between the fixing sleeve and the fixing ring. The outer wall of the connecting edge 2 is squeezed by multiple locking nuts to fix the connecting edge 2. At the same time, multiple cooling fins are installed on the fixing sleeve, and the heat dissipation area of ​​the fixing sleeve and the tail end of the bellows body is increased, thereby improving its heat dissipation efficiency and extending the service life of the bellows body. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 The schematic diagram of the overall structure of this utility model

[0027] Figure 2 Practical Figure 1 Enlarged view of point A in the middle

[0028] Figure 3 Practical Figure 1 Enlarged view of point B

[0029] Figure 4 The schematic diagram of the structure of the main body of the practical bellows

[0030] Figure 5 Schematic diagram of the structure of the practical connection component

[0031] Figure 6 Schematic diagram of the structure of the practical fixing component

[0032] In the figure:

[0033] 1. Bellows body;

[0034] 11. Connecting edge 1; 12. Connecting edge 2; 13. Refractory layer;

[0035] 2. Connect components;

[0036] 21. Connecting sleeve; 211. Elastic sheet; 22. Locking nut; 221. Conical sleeve; 23. Support sleeve; 24. Connecting flange; 241. Connecting hole;

[0037] 3. Fix the components;

[0038] 31. fixing sleeve; 32. fixing ring; 33. fixing bolt; 331. pressing block; 34. connecting frame; 341. fixing plate; 342. fixing hole; 35. heat dissipation ring; 351. heat dissipation fin. DETAILED DESCRIPTION

[0039] The technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all of the embodiments.

[0040] The components of the embodiments of the present invention generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0041] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

[0042] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the 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 cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0043] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] See also Figure 1-6 The utility model provides a technical solution: an automobile flame-retardant corrugated pipe, comprising a corrugated pipe body 1, the inner wall of which is provided with a fire-resistant layer 13, one side of the corrugated pipe body 1 is fixedly connected with an annular connecting edge 11, and the other side of the corrugated pipe body 1 is fixedly connected with an annular connecting edge 2 12.

[0045] The fire-resistant layer 13 on the inner wall of the bellows body 1 may be a silicate fire-retardant coating, which improves the high temperature resistance of the bellows body 1 and prolongs the service life of the bellows body 1 .

[0046] The connecting assembly 2 includes a connecting sleeve 21 with a thread on the outer surface, a plurality of elastic sheets 211 are arranged on the side wall of the connecting sleeve 21, and a supporting sleeve 23 is arranged inside the connecting sleeve 21. A connecting edge 11 is inserted between the connecting sleeve 21 and the supporting sleeve 23. A locking nut 22 is threadedly connected to the outer wall of the connecting sleeve 21, and a conical sleeve 221 is installed on the side wall of the locking nut 22. The conical sleeve 221 is arranged on the outer wall of the plurality of elastic sheets 211.

[0047] Among them, the connecting edge 11 is inserted between the connecting sleeve 21 and the supporting sleeve 23, and the locking nut 22 is rotated to make the locking nut 22 move toward the connecting flange 24, so that the conical sleeve 221 on the locking nut 22 contacts the outer wall of the elastic sheet 211, so that multiple elastic sheets 211 are close to each other, thereby fixing the connecting edge 11 and making disassembly more convenient.

[0048] A connecting flange 24 is fixedly connected to the side wall of the connecting sleeve 21 , and the connecting flange 24 is fixedly connected to the supporting sleeve 23 . The connecting flange 24 is provided with a plurality of connecting holes 241 penetrating the connecting flange 24 , and the plurality of connecting holes 241 are arranged circumferentially around the center of the connecting flange 24 .

[0049] Furthermore, the connecting flange 24 is fixed to the automobile pipeline by passing the matching bolts through the connecting holes 241 , and only the bellows body 1 needs to be disassembled, and the connecting assembly 2 does not need to be disassembled.

[0050] The fixing component 3 is used to fix the corrugated pipe body 1. The fixing component 3 is detachably connected to the connecting edge 2 12. The fixing component 3 includes a fixing sleeve 31. A fixing ring 32 is fixedly installed on the inner wall of the fixing sleeve 31. The connecting edge 2 12 is inserted between the fixing sleeve 31 and the fixing ring 32. A plurality of fixing bolts 33 are threadedly connected on the outer wall of the fixing sleeve 31. After the plurality of fixing bolts 33 are threadedly connected to the fixing sleeve 31, a pressure block 331 is fixedly installed.

[0051] In addition, the second connecting side 12 is inserted between the fixing sleeve 31 and the fixing ring 32 , and the second connecting side 12 is fixed by rotating the plurality of fixing bolts 33 and using the plurality of pressing blocks 331 to press the outer wall of the second connecting side 12 .

[0052] A plurality of heat dissipation fins 351 are fixedly mounted on the outer wall of the fixing sleeve 31 . The plurality of heat dissipation fins 351 are evenly distributed on the outer wall of the fixing sleeve 31 . A heat dissipation ring 35 is mounted on the plurality of heat dissipation fins 351 .

[0053] In addition, the plurality of heat dissipation fins 351 increase the heat dissipation area of ​​the fixing sleeve 31 and the rear end of the bellows body 1 , thereby improving the heat dissipation efficiency, and the heat dissipation ring 35 can fix the plurality of heat dissipation fins 351 .

[0054] A connecting frame 34 is fixedly mounted on the outer wall of the fixing sleeve 31 , a fixing plate 341 is fixedly mounted on the connecting frame 34 , and two fixing holes 342 penetrating the fixing plate 341 are formed on the fixing plate 341 .

[0055] Specifically, the fixing plate 341 is fixed to the chassis of the automobile by means of matching bolts passing through the fixing holes 342 , thereby fixing the bellows body 1 and improving the firmness of the bellows body 1 .

[0056] The working principle and use process of this utility model: please refer to Figure 1-6 The fire-resistant layer 13 on the inner wall of the bellows body 1 can be a silicate fire-retardant coating to improve the high temperature resistance of the bellows body 1 and extend the service life of the bellows body 1. The connecting edge 11 is inserted between the connecting sleeve 21 and the supporting sleeve 23, and the locking nut 22 is rotated to make the locking nut 22 move toward the connecting flange 24, so that the conical sleeve 221 on the locking nut 22 contacts the outer wall of the elastic sheet 211, so that the multiple elastic sheets 211 are close to each other, thereby fixing the connecting edge 11, making it more convenient to disassemble, and passing through the matching bolts. The connecting flange 24 is fixed to the automobile pipe through the connecting hole 241. It is only necessary to disassemble the bellows main body 1 without disassembling the connecting assembly 2. The connecting edge 12 is inserted between the fixing sleeve 31 and the fixing ring 32. By rotating multiple fixing bolts 33, multiple pressing blocks 331 are used to squeeze the outer wall of the connecting edge 12 to fix the connecting edge 12. Multiple heat dissipation fins 351 increase the heat dissipation area of ​​the fixing sleeve 31 and the tail end of the bellows main body 1, thereby improving its heat dissipation efficiency, and the heat dissipation ring 35 can fix multiple heat dissipation fins 351.

[0057] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A flame-retardant corrugated pipe for automobiles, characterized in that: It comprises a bellows body (1); The bellows body (1) has a first annular connecting edge (11) fixedly connected to one side thereof, and a second annular connecting edge (12) fixedly connected to the other side thereof; A connection assembly (2), comprising a connection sleeve (21) with a threaded outer surface, a plurality of elastic sheets (211) being arranged on the side wall of the connection sleeve (21), a support sleeve (23) being arranged inside the connection sleeve (21), and the connection edge (11) being inserted between the connection sleeve (21) and the support sleeve (23); A locking nut (22) is threadedly connected to the outer wall of the connecting sleeve (21), a conical sleeve (221) is installed on the side wall of the locking nut (22), and the conical sleeve (221) is arranged on the outer walls of the plurality of elastic sheets (211); A fixing component (3) is used to fix the bellows body (1), and the fixing component (3) is detachably connected to the second connecting edge (12).

2. The automotive flame-retardant corrugated pipe according to claim 1, characterized in that: The inner wall of the bellows body (1) is provided with a fire-resistant layer (13).

3. The automotive flame-retardant corrugated pipe according to claim 1, characterized in that: A connecting flange (24) is fixedly connected to the side wall of the connecting sleeve (21), and the connecting flange (24) is fixedly connected to the supporting sleeve (23).

4. The automotive flame-retardant corrugated pipe according to claim 3, characterized in that: The connecting flange (24) is provided with a plurality of connecting holes (241) penetrating the connecting flange (24); The plurality of connection holes (241) are arranged circumferentially around the center of the connection flange (24).

5. The automotive flame-retardant corrugated pipe according to claim 1, characterized in that: The fixing assembly (3) comprises a fixing sleeve (31), and a fixing ring (32) is fixedly mounted on the inner wall of the fixing sleeve (31); The second connecting edge (12) is inserted between the fixing sleeve (31) and the fixing ring (32).

6. The automotive flame-retardant corrugated pipe according to claim 5, characterized in that: A plurality of fixing bolts (33) are threadedly connected to the outer wall of the fixing sleeve (31), and a pressing block (331) is fixedly installed after the plurality of fixing bolts (33) are threadedly connected to the fixing sleeve (31).

7. The automotive flame-retardant corrugated pipe according to claim 5, characterized in that: A plurality of heat dissipation fins (351) are fixedly mounted on the outer wall of the fixing sleeve (31), and the plurality of heat dissipation fins (351) are evenly distributed on the outer wall of the fixing sleeve (31); A heat dissipation ring (35) is installed on the plurality of heat dissipation fins (351).

8. The automotive flame-retardant corrugated pipe according to claim 5, characterized in that: A connecting frame (34) is fixedly mounted on the outer wall of the fixing sleeve (31), and a fixing plate (341) is fixedly mounted on the connecting frame (34); The fixing plate (341) is provided with two fixing holes (342) penetrating the fixing plate (341).

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