Automobile noise reduction pipe structure

Abstract

The utility model discloses an automobile noise reduction pipe structure which comprises a first branch pipe, a second branch pipe and a connecting pipe arranged between the first branch pipe and the second branch pipe, a plurality of limiting protrusions are arranged on the connecting pipe, noise reduction pieces are arranged among the limiting protrusions, and protruding teeth are arranged on the inner sides of the noise reduction pieces. The two ends of the connecting pipe are fixed to the first branch pipe and the second branch pipe through quick release structures, each quick release structure comprises first ring bodies arranged on the outer sides of the two ends of the connecting pipe, a plurality of inserting pieces are arranged on the sides, away from the noise reduction piece, of the first ring bodies, and open grooves are formed in the side faces of one ends of the inserting pieces. According to the automobile noise reduction pipe structure, through mutual cooperation of the first ring body, the second ring body, the inserting pieces, the open grooves, the inserting openings, the protruding rods, the circular rings, the notches, the inserting heads, the protrusions and the springs, disassembly and assembly of the connecting pipe, the first branch pipe and the second branch pipe can be facilitated, operation is convenient, the protruding rods can be pushed and pulled, and efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of automobile noise reduction pipes, and particularly relates to an automobile noise reduction pipe structure. Background Technique

[0002] The cooling system of an automobile has a heater hose. One end of the heater hose is connected to the engine, and the other end is connected to the heater core aluminum pipe on the air-conditioning main box. Since the fuel system and the high-pressure fuel pump are both arranged on the engine, the engine becomes a huge noise carrier. The air-conditioning main unit is arranged in the cab. During the operation of the engine, the noise on the engine will be transmitted to the cab through the heater rubber hose.

[0003] Because the rubber material has good noise isolation and vibration absorption effects, the noise reduction pipes in the prior art are made of rubber materials. However, the existing noise reduction pipes have limited noise and vibration isolation effects, resulting in a problem of high noise in the cab. In the prior art, to solve the above technical problems, a commonly used and easily thought-of method is to increase the thickness of the noise reduction pipe to improve the noise isolation and vibration absorption effects of the air-conditioning warm air; or an absorber is arranged on the noise reduction pipe. However, the above two methods increase the weight of the noise reduction pipe on the one hand and increase the manufacturing cost of the noise reduction pipe on the other hand, which is not conducive to popularization.

[0004] In the Chinese utility model patent application No.: 202022895255.2, a noise reduction pipe is disclosed. The device includes a pipe body made of rubber material. The pipe body includes a separately arranged first branch pipe and a second branch pipe. The noise reduction pipe further includes a connecting pipe made of metal material. A noise reduction member capable of reducing noise is arranged on the connecting pipe. The first branch pipe and the second branch pipe are fixedly connected through the connecting pipe. The noise reduction pipe has the advantage of reducing the noise in the cab after the engine is started.

[0005] In the above prior art, the two of the connecting pipes are respectively connected to the first branch pipe and the second branch pipe through clamps. When disassembling and assembling the connecting pipe and the branch pipes, it is necessary to operate the two clamps one by one. The clamp fixing operation is relatively cumbersome, the convenience is poor, and the efficiency is affected.

[0006] Therefore, it is very necessary to propose an automobile noise reduction pipe structure to solve the above problems. Content of the Utility Model

[0007] The main purpose of the utility model is to provide an automobile noise reduction pipe structure, which can effectively solve the problems in the background technique.

[0008] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0009] An automotive noise reduction pipe structure includes a first branch pipe, a second branch pipe, and a connecting pipe disposed between the first branch pipe and the second branch pipe. A plurality of limiting protrusions are provided on the connecting pipe, a noise reduction member is provided between the limiting protrusions, and convex teeth are provided on the inner side of the noise reduction member.

[0010] Both ends of the connecting pipe are fixed to the first branch pipe and the second branch pipe through a quick-release structure. The quick-release structure includes a first ring body provided on the outer sides of both ends of the connecting pipe. A plurality of insertion pieces are provided on the side of the first ring body away from the noise reduction member. A slot is provided on the side surface of one end of the insertion piece. Second ring bodies are provided at both ends of the first branch pipe and the second branch pipe close to the connecting pipe. Sockets corresponding to the insertion pieces are provided on the side of the second ring body close to the connecting pipe. An annular groove is provided on the side of the second ring body away from the noise reduction member. A circular ring is movably provided inside the annular groove. A notch corresponding to the socket is provided on the inner side of the circular ring. A plug is provided at one end inside the notch. One end of the circular ring is open, and a protrusion is provided at the corresponding position of the inner side of the annular groove and the opening of the circular ring. Springs are provided on both sides of the protrusion. A convex rod is provided at one end of the circular ring.

[0011] Preferably, the insertion piece is inserted and cooperates with the socket and the notch.

[0012] Preferably, the end of the spring away from the protrusion is connected to the end of the circular ring, and the plug is inserted and cooperates with the slot in the reset state of the spring.

[0013] Preferably, a through groove is provided on one side of the second ring body, and the end of the convex rod away from the circular ring extends to the outside of the second ring body through the through groove.

[0014] Preferably, it further includes a synchronous rod member. The synchronous rod member includes a force application rod provided at the end of the convex rod away from the circular ring. A plugging rod is provided at the end of one force application rod away from the convex rod, and a movable groove is provided at the end of the other force application rod away from the convex rod.

[0015] Preferably, the plugging rod is movably inserted and cooperates with the movable groove.

[0016] Preferably, sealing pipes are symmetrically provided on the inner perimeters of both ends of the connecting pipe. The sealing pipes have a certain taper, and the two sealing pipes are respectively inserted and cooperated with the inner sides of the ends of the first branch pipe and the second branch pipe close to the connecting pipe, and the outer sides of the ends of the sealing pipes close to the connecting pipe are tightly abutted and cooperated with the inner edges of the ends of the first branch pipe and the second branch pipe.

[0017] Beneficial effects

[0018] Compared with the prior art, the present utility model provides an automotive noise reduction pipe structure, which has the following beneficial effects:

[0019] 1. The automobile noise reduction pipe structure can facilitate the disassembly and assembly of the connecting pipe and the first branch pipe and the second branch pipe through the mutual cooperation of the first ring body, the second ring body, the insert, the slot, the socket, the convex rod, the circular ring, the recess, the plug, the protrusion and the spring. The operation is convenient and can be achieved by pushing and pulling the convex rod, thereby improving efficiency and convenience. The sealing pipe has a certain taper and abuts against the inner edges of the ends of the first branch pipe and the second branch pipe, thereby improving the sealing performance.

[0020] 2. The automobile noise reduction pipe structure can link the two protruding rods through the force rod, the movable groove and the plug-in rod, so that the connecting pipe and the first branch pipe and the second branch pipe can be disassembled and assembled by simply pushing the force rod, which further improves efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the utility model;

[0022] Figure 2 It is a structural schematic diagram of the utility model in which the connecting pipe, the first branch pipe and the second branch pipe are separated;

[0023] Figure 3 It is a structural schematic diagram of the connecting pipe of the utility model;

[0024] Figure 4 It is a structural schematic diagram of the second branch of the utility model;

[0025] Figure 5 It is a schematic diagram of the cross-sectional structure of the second ring body of the utility model when viewed from above.

[0026] In the figure: 1, first branch pipe; 2, second branch pipe; 3, connecting pipe; 4, limiting protrusion; 5, noise reduction member; 6, convex teeth; 7, convex rod; 8, force rod; 9, plug rod; 10, sealing pipe; 11, first ring body; 12, insert; 13, slot; 14, second ring body; 15, socket; 16, through slot; 17, movable slot; 18, annular slot; 19, circular ring; 20, notch; 21, plug; 22, protrusion; 23, spring. DETAILED DESCRIPTION

[0027] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0028] like Figures 1-5 As shown, a noise reduction pipe structure for an automobile comprises a first branch pipe 1, a second branch pipe 2 and a connecting pipe 3 arranged between the first branch pipe 1 and the second branch pipe 2, a plurality of limiting protrusions 4 are arranged on the connecting pipe 3, a noise reduction member 5 is arranged between the limiting protrusions 4, and a convex tooth 6 is arranged on the inner side of the noise reduction member 5;

[0029] Both ends of the connecting pipe 3 are fixed to the first branch pipe 1 and the second branch pipe 2 through a quick-release structure. The quick-release structure includes a first ring body 11 arranged on the outer sides of both ends of the connecting pipe 3. A plurality of insertion pieces 12 are arranged on the side of the first ring body 11 away from the noise reduction member 5. A slot 13 is arranged on the side surface of one end of the insertion piece 12. Second ring bodies 14 are arranged at one ends of the first branch pipe 1 and the second branch pipe 2 close to the connecting pipe 3. Sockets 15 corresponding to the insertion pieces 12 are arranged on the side of the second ring body 14 close to the connecting pipe 3. An annular groove 18 is arranged on the side of the second ring body 14 away from the noise reduction member 5. A circular ring 19 is movably arranged inside the annular groove 18. A notch 20 corresponding to the socket 15 is arranged inside the circular ring 19. The insertion piece 12 is in plug-in connection with the socket 15 and in plug-in cooperation with the notch 20. A plug 21 is arranged at one end inside the notch 20. One end of the circular ring 19 is open. A protrusion 22 is arranged at the corresponding position of the inner side of the annular groove 18 and the opening of the circular ring 19. Springs 23 are arranged on both sides of the protrusion 22. One end of the spring 23 away from the protrusion 22 is connected to the end of the circular ring 19. And in the reset state of the spring 23, the plug 21 is in plug-in connection with the slot 13. A convex rod 7 is arranged at one end of the circular ring 19. A through groove 16 is arranged on one side of the second ring body 14. One end of the convex rod 7 away from the circular ring 19 extends to the outside of the second ring body 14 through the through groove 16.

[0030] Furthermore, it further includes a synchronous rod member. The synchronous rod member includes a force application rod 8 arranged at one end of the convex rod 7 away from the circular ring 19. A plugging rod 9 is arranged at one end of one of the force application rods 8 away from the convex rod 7. An activity groove 17 is arranged at one end of the other force application rod 8 away from the convex rod 7. The plugging rod 9 is in movable plug-in connection with the activity groove 17.

[0031] Furthermore, sealing pipes 10 are symmetrically arranged inside the two ends of the connecting pipe 3. The sealing pipes 10 have a certain taper. And the two sealing pipes 10 are respectively in plug-in connection with the inner sides of one ends of the first branch pipe 1 and the second branch pipe 2 close to the connecting pipe 3. And the outer sides of one ends of the sealing pipes 10 close to the connecting pipe 3 are in close abutting connection with the inner edges of the ends of the first branch pipe 1 and the second branch pipe 2.

[0032] It should be noted that the present utility model is an automobile noise reduction pipe structure. When in use, the first branch pipe 1, the second branch pipe 2, the connecting pipe 3, the limiting protrusion 4, the noise reduction member 5, and the convex teeth 6 are prior arts. How to reduce noise will not be elaborated too much.

[0033] When disassembling the connecting pipe 3, the force-applying rod 8 is pushed. The force-applying rod 8 drives the two convex rods 7 to rotate. The convex rods 7 drive the ring 19 to rotate inside the annular groove 18. The ring 19 cooperates with the protrusion 22 to compress the spring 23, so that the plug 21 disengages from the inside of the slot 13. Then, the first branch pipe 1 and the second branch pipe 2 are pulled away from each other. The insertion rod 9 moves inside the annular groove 18, and the insertion piece 12 disengages from the inside of the socket 15. The sealing pipe 10 disengages from the inside of the first branch pipe 1 and the second branch pipe 2, thus realizing the disassembly of the connecting pipe 3 from the first branch pipe 1 and the second branch pipe 2. The installation is carried out in the same way.

[0034] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only used to illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. An automotive noise reduction pipe structure, comprising a first branch pipe (1), a second branch pipe (2), and a connecting pipe (3) disposed between the first branch pipe (1) and the second branch pipe (2). A plurality of limiting protrusions (4) are provided on the connecting pipe (3), a noise reduction member (5) is provided between the limiting protrusions (4), and convex teeth (6) are provided on the inner side of the noise reduction member (5). It is characterized in that: Both ends of the connecting pipe (3) are fixed to the first branch pipe (1) and the second branch pipe (2) through a quick-release structure. The quick-release structure includes a first ring body (11) disposed on the outer sides of both ends of the connecting pipe (3). A plurality of insertion pieces (12) are provided on the side of the first ring body (11) away from the noise reduction member (5). A slot (13) is provided on the side surface of one end of the insertion piece (12). Second ring bodies (14) are provided at both ends of the first branch pipe (1) and the second branch pipe (2) close to the connecting pipe (3). Sockets (15) corresponding to the insertion pieces (12) are provided on the side of the second ring body (14) close to the connecting pipe (3). An annular groove (18) is provided on the side of the second ring body (14) away from the noise reduction member (5). A circular ring (19) is movably provided inside the annular groove (18). A notch (20) corresponding to the socket (15) is provided on the inner side of the circular ring (19). A plug (21) is provided at one end inside the notch (20). One end of the circular ring (19) is open, and a protrusion (22) is provided at the corresponding position of the inner side of the annular groove (18) and the opening of the circular ring (19). Springs (23) are provided on both sides of the protrusion (22). A convex rod (7) is provided at one end of the circular ring (19).

2. The structure of an automotive noise reduction pipe according to claim 1, wherein: The insertion piece (12) is inserted into the socket (15) and is in plug-in fit with the notch (20).

3. The structure of an automotive noise reduction tube according to claim 2, characterized in that: One end of the spring (23) away from the protrusion (22) is connected to the end of the circular ring (19), and the plug (21) is in plug-in fit with the slot (13) in the reset state of the spring (23).

4. The structure of an automotive noise reduction tube according to claim 3, characterized in that: A through groove (16) is provided on one side of the second ring body (14). One end of the convex rod (7) away from the circular ring (19) extends to the outside of the second ring body (14) through the through groove (16).

5. The structure of an automotive noise reduction pipe according to claim 4, characterized in that: It further includes a synchronous rod member. The synchronous rod member includes a force application rod (8) provided at one end of the convex rod (7) away from the circular ring (19). A plugging rod (9) is provided at one end of one force application rod (8) away from the convex rod (7), and a movable groove (17) is provided at one end of the other force application rod (8) away from the convex rod (7).

6. The structure of an automotive noise reduction pipe according to claim 5, characterized in that: The plugging rod (9) is in movable plug-in fit with the movable groove (17).

7. A noise reduction pipe structure for an automobile according to claim 1, characterized in that: Sealing pipes (10) are symmetrically provided on the inner perimeters of both ends of the connecting pipe (3), and the two sealing pipes (10) are respectively in plug-in fit with the inner sides of the ends of the first branch pipe (1) and the second branch pipe (2) close to the connecting pipe (3), and the outer sides of the ends of the sealing pipes (10) close to the connecting pipe (3) are in close abutting fit with the inner edges of the ends of the first branch pipe (1) and the second branch pipe (2).

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