Curved surface special-shaped exhaust pipe of low-pressure vehicle-mounted double-cylinder air compressor

Abstract

The utility model relates to the technical field of air compressors, in particular to a curved surface special-shaped exhaust pipe of a low-pressure vehicle-mounted double-cylinder air compressor, which comprises an exhaust pipe, exhaust pipe branch pipes and a flange, the exhaust pipe branch pipes are uniformly distributed, the flange is fixedly connected with the left end of the exhaust pipe, and the exhaust pipe branch pipes are communicated with the outer wall of the exhaust pipe. Reinforcing ribs which are evenly distributed are arranged on the outer wall of the exhaust pipe, the outer wall of the exhaust pipe is fixedly connected with an access hole, the access hole is connected with a connecting cover through a sealing structure, and a silencing assembly is arranged at the left end of the flange. Through the arrangement of the silencing assembly, noise generated when gas is exhausted through the exhaust pipe can be absorbed and weakened by the two layers of the inner net, the outer net and the sound absorption layer in the silencing assembly, so that large noise cannot be generated, noise pollution is not prone to being caused when the noise is reduced, and through the arrangement of the access hole and the connecting cover, the noise is reduced, and the service life of the exhaust pipe is prolonged. When the inside of the exhaust pipe goes wrong, the exhaust pipe can be easily opened for maintenance.

Description

Technical Field

[0001] The utility model relates to the technical field of air compressors, in particular to a curved special-shaped exhaust pipe of a low-pressure vehicle-mounted double-cylinder air compressor. Background Art

[0002] An air compressor is a device used to compress gas. Its construction is similar to that of a water pump. Most air compressors use reciprocating pistons, rotary vanes, or rotary screws. Centrifugal compressors are used in very large applications. The compressor has a coarse inlet and a fine outlet. The inlet connects to the evaporator (or gas-liquid separator), and the outlet connects to the condenser. The inlet temperature is low, while the outlet temperature is high.

[0003] A low-pressure vehicle-mounted two-cylinder air compressor curved and shaped exhaust pipe with application number CN202010640413.1 includes an exhaust pipe main pipe, the left end of which is fixedly provided with a main pipe connecting flange, and exhaust pipe branches are connected to the bottom and right end of the exhaust pipe main pipe, and the bottom of the exhaust pipe branch is fixedly provided with a branch pipe connecting flange.

[0004] The above patent document has direct one-piece casting, which reduces the material cost of pipeline connection and the difficulty of pipeline installation, while avoiding the risk of poor sealing due to multiple connections of the pipeline. It has reasonable design, high novelty, and easy-to-achieve beneficial effects. However, when it is installed and used, when the gas is discharged to the outside through the pipeline, it often generates a lot of noise, which easily causes noise pollution. In addition, conventional exhaust pipes are all one-piece molded and have an irregular shape, which is inconvenient to repair. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the existing low-pressure vehicle-mounted dual-cylinder air compressor, in which when the gas is installed and used, it often generates loud noise when it is discharged to the outside through the pipe, which easily causes noise pollution, and the conventional exhaust pipe is all integrally formed and has an irregular shape, which is inconvenient during maintenance.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A low-pressure vehicle-mounted two-cylinder air compressor curved special-shaped exhaust pipe, comprising an exhaust pipe, evenly distributed exhaust pipe branches, and a flange. The left end of the exhaust pipe is fixedly connected to the flange, the exhaust pipe branches are through-connected to the outer wall of the exhaust pipe, the outer wall of the exhaust pipe is provided with evenly distributed reinforcing ribs, the outer wall of the exhaust pipe is fixedly connected to an inspection port, the inspection port is connected to a connecting cover through a sealing structure, and the left end of the flange is provided with a silencer assembly.

[0008] Preferably, evenly distributed fixing rings are fixedly connected between the reinforcing ribs, and the inner walls of the fixing rings are fixedly connected to the outer wall of the exhaust pipe.

[0009] Preferably, the sealing structure includes evenly distributed adapter grooves, mounting blocks, first bolts, and sealing gaskets. The adapter grooves are arranged at the four ends of the outer wall of the inspection port. The mounting blocks are fixedly connected to the outer wall of the connecting cover. The sealing gasket is fixedly connected to the inner wall of the connecting cover. The first bolt is threadedly connected to the mounting block.

[0010] Preferably, the mounting block is slidably connected to the inner wall of the adapting groove, the first bolt is threadedly connected to the bottom end of the inner wall of the adapting groove, and the sealing gasket is slidably connected to the inner wall of the inspection port.

[0011] Preferably, the silencer assembly includes evenly distributed bumps, a second bolt, a sound-absorbing shell, an inner net, a sound-absorbing layer, and an outer net. The bumps are fixedly connected to the outer wall of the sound-absorbing shell facing outward, the second bolt is threadedly connected to the bumps, the sound-absorbing shell is slidably connected to the inner wall of the exhaust pipe, and the inner net, the sound-absorbing layer, and the outer net are all fixedly connected to the inner wall of the sound-absorbing shell.

[0012] Preferably, the second bolt is threadedly connected to the outer wall of the flange, the sound absorbing layer is arranged between the inner net and the outer net, the inner net is arranged on the right side of the sound absorbing layer, and the outer net is arranged on the left side of the sound absorbing layer.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. When the utility model is in use, the noise generated when the gas is discharged through the exhaust pipe can be absorbed and weakened by the two layers of inner and outer nets and the sound-absorbing layer in the noise reduction component through the provided silencer component, thereby preventing the generation of loud noise. The reduced noise makes it less likely to cause noise pollution.

[0015] 2. When the utility model is in use, the inspection port and the connecting cover can be provided so that when there is a problem inside the exhaust pipe, it can be easily opened for inspection. The sealing gasket provided on the connecting cover can prevent gas from leaking from the inspection port, making the inspection of the special-shaped exhaust pipe more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of a curved special-shaped exhaust pipe for a low-pressure vehicle-mounted dual-cylinder air compressor proposed in the utility model;

[0017] Figure 2 This is a vertical half-section schematic diagram of the three-dimensional structure of a curved special-shaped exhaust pipe of a low-pressure vehicle-mounted dual-cylinder air compressor proposed by the utility model;

[0018] Figure 3This is a schematic diagram of the transverse half-section three-dimensional structure of a curved special-shaped exhaust pipe of a low-pressure vehicle-mounted dual-cylinder air compressor proposed in the utility model;

[0019] Figure 4 This is a schematic diagram of the left side three-dimensional structure of a curved special-shaped exhaust pipe of a low-pressure vehicle-mounted dual-cylinder air compressor proposed by the present invention.

[0020] In the figure: 1 exhaust pipe, 2 exhaust pipe branch, 3 flange, 4 reinforcement rib, 5 inspection port, 6 connection cover, 7 silencer assembly, 8 fixing ring, 9 adapter groove, 10 mounting block, 11 first bolt, 12 sealing gasket, 13 protrusion, 14 second bolt, 15 sound-absorbing shell, 16 inner net, 17 sound-absorbing layer, 18 outer net. DETAILED DESCRIPTION

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0022] Reference Figure 1-Figure 4 A curved and special-shaped exhaust pipe for a low-pressure vehicle-mounted two-cylinder air compressor includes an exhaust pipe 1, evenly distributed exhaust pipe branches 2, and a flange 3. The left end of the exhaust pipe 1 is fixedly connected to the flange 3, the exhaust pipe branch 2 is connected to the outer wall of the exhaust pipe 1, and the outer wall of the exhaust pipe 1 is provided with evenly distributed reinforcing ribs 4. An inspection port 5 is fixedly connected to the outer wall of the exhaust pipe 1, and the inspection port 5 is connected to a connecting cover 6 through a sealing structure. A silencer component 7 is provided at the left end of the flange 3.

[0023] It should be noted that the exhaust pipe 1 and exhaust pipe branch 2, flange 3, and sound-absorbing layer 17 are existing technologies. The specific model specifications need to be selected and determined based on the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it will not be repeated.

[0024] Furthermore, evenly distributed fixing rings 8 are fixedly connected between the reinforcing ribs 4 , and the inner walls of the fixing rings 8 are fixedly connected to the outer wall of the exhaust pipe 1 .

[0025] The size of the fixing ring 8 is adjusted according to the thickness of the outer wall of the exhaust pipe 1 , so that the fixing ring 8 and the reinforcing rib 4 can be combined to enhance the strength of the exhaust pipe 1 .

[0026] Furthermore, the sealing structure includes evenly distributed adapter grooves 9, mounting blocks 10, first bolts 11, and sealing gaskets 12. The adapter grooves 9 are arranged at the four ends of the outer wall of the inspection port 5. The mounting blocks 10 are fixedly connected to the outer wall of the connecting cover 6. The sealing gasket 12 is fixedly connected to the inner wall of the connecting cover 6. The first bolt 11 is threadedly connected to the mounting block 10.

[0027] The bottom end of the first bolt 11 penetrates the bottom end of the inner wall of the adapting groove 9 and is threadedly connected, but does not completely penetrate the outer wall of the inspection port 5, so that no gas will leak.

[0028] Furthermore, the mounting block 10 is slidably connected to the inner wall of the adapting groove 9 , the first bolt 11 is threadedly connected to the bottom end of the inner wall of the adapting groove 9 , and the sealing gasket 12 is slidably connected to the inner wall of the inspection port 5 .

[0029] Among them, the sealing structure is achieved by first inserting the sealing gasket 12 into the inspection port 5, then aligning the mounting block 10 with the adapter groove 9 and inserting it until the mounting block 10 is completely fitted with the adapter groove 9, and then using the first bolt 11 to connect the mounting block 10 to the inspection port 5.

[0030] Furthermore, the silencer assembly 7 includes evenly distributed bumps 13, a second bolt 14, a sound-absorbing shell 15, an inner net 16, a sound-absorbing layer 17, and an outer net 18. The bump 13 is fixedly connected to the outer wall of the sound-absorbing shell 15 facing outward, the second bolt 14 is threadedly connected to the bump 13, the sound-absorbing shell 15 is slidably connected to the inner wall of the exhaust pipe 1, and the inner net 16, the sound-absorbing layer 17, and the outer net 18 are all fixedly connected to the inner wall of the sound-absorbing shell 15.

[0031] The sound absorbing layer 17 is a porous sound absorbing material that can absorb sound wave energy, thereby reducing noise.

[0032] Furthermore, the second bolt 14 is threadedly connected to the outer wall of the flange 3 , and the sound absorbing layer 17 is arranged between the inner mesh 16 and the outer mesh 18 , the inner mesh 16 is arranged on the right side of the sound absorbing layer 17 , and the outer mesh 18 is arranged on the left side of the sound absorbing layer 17 .

[0033] The shape and size of the sound absorbing shell 15 are adapted to the shape and size of the inner wall of the exhaust pipe 1 .

[0034] Working principle: When the inside of the exhaust pipe 1 needs to be inspected, the first bolt 11 can be manually tightened to remove the first bolt 11 from the mounting block 10, and then the connecting cover 6 can be pulled backward to open the inspection port. Then, the sealing gasket 12 is first inserted into the inspection port 5, and then the mounting block 10 is aligned with the adapter groove 9 and inserted until the mounting block 10 is completely fitted into the adapter groove 9. Then, the first bolt 11 is used to connect the mounting block 10 to the inspection port 5.

[0035] Then align the second bolt 14 on the protrusion 13 with the threaded hole on the left outer wall of the flange 3 and insert and connect. When it is necessary to reduce noise, the noise will first pass through the outer mesh 18 and the inner mesh 17, and then be partially absorbed by the sound-absorbing layer 17. The passing noise will be partially absorbed again by the next layer of sound-absorbing layer 17, so that no loud noise will be generated. The reduced noise is less likely to cause noise pollution and makes the inspection of the exhaust pipe 1 more convenient.

[0036] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A low-pressure vehicle-mounted double-cylinder air compressor curved special-shaped exhaust pipe, comprising an exhaust pipe (1), evenly distributed exhaust pipe branches (2), and a flange (3), characterized in that: The left end of the exhaust pipe (1) is fixedly connected to a flange (3), the exhaust pipe branch (2) is connected to the outer wall of the exhaust pipe (1), the outer wall of the exhaust pipe (1) is provided with uniformly distributed reinforcing ribs (4), the outer wall of the exhaust pipe (1) is fixedly connected to an inspection port (5), the inspection port (5) is connected to a connection cover (6) through a sealing structure, and the left end of the flange (3) is provided with a silencer assembly (7).

2. The low-pressure vehicle-mounted dual-cylinder air compressor curved special-shaped exhaust pipe according to claim 1, characterized in that: Evenly distributed fixing rings (8) are fixedly connected between the reinforcing ribs (4), and the inner wall of the fixing ring (8) is fixedly connected to the outer wall of the exhaust pipe (1).

3. The low-pressure vehicle-mounted dual-cylinder air compressor curved special-shaped exhaust pipe according to claim 1, characterized in that: The sealing structure comprises evenly distributed adapting grooves (9), a mounting block (10), a first bolt (11), and a sealing gasket (12); the adapting grooves (9) are arranged at four ends of the outer wall of the inspection port (5); the mounting block (10) is fixedly connected to the outer wall of the connecting cover (6); the sealing gasket (12) is fixedly connected to the inner wall of the connecting cover (6); and the first bolt (11) is threadedly connected to the mounting block (10).

4. The low-pressure vehicle-mounted dual-cylinder air compressor curved special-shaped exhaust pipe according to claim 3, characterized in that: The mounting block (10) is slidably connected to the inner wall of the adapting groove (9), the first bolt (11) is threadedly connected to the bottom end of the inner wall of the adapting groove (9), and the sealing gasket (12) is slidably connected to the inner wall of the inspection port (5).

5. The low-pressure vehicle-mounted dual-cylinder air compressor curved special-shaped exhaust pipe according to claim 1, characterized in that: The muffler assembly (7) comprises evenly distributed protrusions (13), a second bolt (14), a sound-absorbing shell (15), an inner net (16), a sound-absorbing layer (17), and an outer net (18); the protrusions (13) are fixedly connected to the outer wall of the sound-absorbing shell (15) facing outward; the second bolt (14) is threadedly connected to the protrusion (13); the sound-absorbing shell (15) is slidably connected to the inner wall of the exhaust pipe (1); and the inner net (16), the sound-absorbing layer (17), and the outer net (18) are all fixedly connected to the inner wall of the sound-absorbing shell (15).

6. The low-pressure vehicle-mounted dual-cylinder air compressor curved special-shaped exhaust pipe according to claim 5, characterized in that: The second bolt (14) is threadedly connected to the outer wall of the flange (3); the sound absorbing layer (17) is arranged between the inner net (16) and the outer net (18); the inner net (16) is arranged on the right side of the sound absorbing layer (17); and the outer net (18) is arranged on the left side of the sound absorbing layer (17).

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