Diesel engine air inlet pipe with good silencing effect

Abstract

The utility model discloses a diesel engine air inlet pipe with a good silencing effect in the field of diesel engines, which comprises an air inlet pipe body, a first sleeve, a second sleeve and a first silencing sleeve shell, the first sleeve is positioned on the upper side of the top of the air inlet pipe body, and the second sleeve is positioned on the lower side of the bottom of the air inlet pipe body. The first silencing sleeve shell is fixedly connected to the inner side wall of the first sleeve and the inner side wall of the second sleeve, positioning blocks are fixedly connected to the lower side of the front side wall and the lower side of the rear side wall of the outer side wall of the first sleeve, the positioning blocks are sequentially arranged from left to right, and a first clamping groove is formed in the middle of the right side wall of each positioning block. According to the diesel engine air inlet pipe with the good silencing effect, looseness is not prone to being generated, the silencing effect is good, use is convenient, a noise reduction mechanism of the air inlet pipe can be conveniently and rapidly disassembled, and the use efficiency of the air inlet pipe is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of diesel engines, in particular to an intake pipe of a diesel engine with good silencing effect. Background Art

[0002] An internal combustion engine is a power machine. It is a thermal engine that burns fuel inside the machine and converts the heat energy released directly into power. The internal combustion engine intake pipe refers to the air pipe that introduces the gas required for combustion of the internal combustion engine into the machine.

[0003] At present, during the use of the diesel engine intake pipe, the periodic opening and closing of the diesel engine intake pipe will inevitably cause the air pressure and density in the intake pipe to fluctuate, thereby generating intake noise, and the existing diesel engine intake pipe noise reduction mechanism is prone to loosening, resulting in poor silencing effect and inconvenience in use. At the same time, when the intake pipe is maintained, it is not convenient to quickly remove the noise reduction mechanism of the intake pipe, which reduces the use efficiency of the intake pipe. For this reason, we propose a diesel engine intake pipe with good silencing effect. Utility Model Content

[0004] The utility model aims to provide a diesel engine intake pipe with good silencing effect, so as to solve the problem proposed in the above background technology that the periodic opening and closing of the diesel engine intake pipe will inevitably cause the air pressure and density in the intake pipe to fluctuate, thereby generating intake noise, and the existing diesel engine intake pipe noise reduction mechanism is prone to loosening, resulting in poor silencing effect and inconvenience in use. At the same time, when maintaining the intake pipe, it is not convenient to quickly remove the noise reduction mechanism of the intake pipe, which reduces the use efficiency of the intake pipe.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a diesel engine intake pipe with good silencing effect, comprising an intake pipe body, a first sleeve, a second sleeve and a first silencer sleeve, the first sleeve being located at the top upper side of the intake pipe body, the second sleeve being located at the bottom lower side of the intake pipe body, the first silencer sleeve being fixedly connected to the inner side wall of the first sleeve and the inner side wall of the second sleeve, a positioning block is fixedly connected to the lower side of the front and rear side walls of the outer side wall of the first sleeve, and the positioning blocks are arranged in sequence from left to right, a first slot is opened in the middle of the right side wall of the positioning block, a positioning plate is fixedly connected to the upper side of the front and rear side walls of the outer side wall of the second sleeve, a front side wall of the front positioning plate and a rear side wall of the rear positioning plate are opened with a second slot, and the second slot is Arranged from left to right, a through hole is provided at the top of the positioning plate, and the through holes are arranged from left to right, a sliding block is slidably connected to the inner cavity of the through hole, and positioning grooves are provided on the left and right sides of the top of the positioning plate, the inner wall of the first silencer shell is fixedly connected to a first support sleeve, the top of the inner wall of the upper first support sleeve and the bottom of the inner wall of the lower first support sleeve are fixedly connected to a sleeve, the inner cavity of the sleeve is slidably connected to a push block, a second elastic member is fixedly connected between the top of the upper push block and the top of the inner cavity of the upper sleeve and between the bottom of the lower push block and the bottom of the inner cavity of the lower sleeve, a push rod is fixedly connected to the bottom of the upper push block and the top of the lower push block, and the push rod passes through the inner wall of the sleeve and extends to the outside of the sleeve.

[0006] As a further description of the above technical solution:

[0007] A fixing block is fixedly connected to the lower left side of the front and rear side walls of the outer wall of the first sleeve and the lower right side of the front and rear side walls of the outer wall. A positioning rod is fixedly connected to the middle of the bottom of the fixing block, and the positioning rod is inserted into the inner cavity of the positioning groove.

[0008] As a further description of the above technical solution:

[0009] A first elastic member is fixedly connected between the right side wall of the slider and the right side wall of the inner cavity of the through hole, and the first elastic member and the second elastic member are made of stainless steel.

[0010] As a further description of the above technical solution:

[0011] A clamping sleeve is rotatably connected between the top and the bottom of the sliding block, and the clamping sleeve is clamped between the inner cavities of the first clamping slot and the second clamping slot.

[0012] As a further description of the above technical solution:

[0013] A second support sleeve is fixedly connected between the bottom end of the upper push rod and the top end of the lower push rod, a second silencer sleeve is fixedly connected to the inner side wall of the second support sleeve, and the second silencer sleeve and the first silencer sleeve are made of polyester fiber cotton.

[0014] As a further description of the above technical solution:

[0015] The inner side wall of the second sound-absorbing shell is fixedly connected with a buffer shell, and the buffer shell is made of polyurethane foam material.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The diesel engine intake pipe with good silencing effect drives the second elastic member to compress and generate rebound force through the pressure generated by the contact between the buffer sleeve and the intake pipe body, and cooperates with the push block, the push rod and the second support sleeve to drive the second silencer sleeve to closely contact the intake pipe body with the help of the buffer sleeve, which is not easy to loosen, and the noise generated by the intake pipe is double-silenced by the first silencer sleeve and the second silencer sleeve, so that the intake pipe has good silencing effect and is easy to use.

[0018] 2. The diesel engine intake pipe with good silencing effect can be separated from the first and second slots and rotated to the left by pulling the card sleeve to the right to drive the slider to compress the first elastic member, and then the first sleeve and the second sleeve can be separated from the intake pipe body by the positioning rod and the positioning slot, so that the intake pipe is easy to quickly remove the noise reduction mechanism of the intake pipe, thereby improving the use efficiency of the intake pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a three-dimensional structural schematic diagram of a diesel engine intake pipe with good silencing effect proposed by the utility model;

[0020] Figure 2 This is a rear cross-sectional structural diagram of a diesel engine intake pipe with good silencing effect proposed by the utility model;

[0021] Figure 3 This is a schematic diagram of the main cross-sectional structure of a diesel engine intake pipe with good silencing effect proposed by the utility model;

[0022] Figure 4 The utility model provides a diesel engine intake pipe with good silencing effect. Figure 3 Enlarged structural diagram at A in the middle.

[0023] In the figure: 100, air intake pipe body; 200, first sleeve; 210, positioning block; 220, first slot; 230, fixing block; 240, positioning rod; 300, second sleeve; 310, positioning plate; 320, second slot; 330, through hole; 340, slider; 350, first elastic member; 360, sleeve; 370, positioning slot; 400, first silencer shell; 410, first support sleeve; 420, sleeve; 430, push block; 440, second elastic member; 450, push rod; 460, second support shell; 470, second silencer shell; 480, buffer shell. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model 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 a limitation on the present utility model. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0026] 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.

[0027] The utility model provides a diesel engine intake pipe with good silencing effect, which has good silencing effect and is convenient for quick removal of the intake pipe noise reduction mechanism. Figure 1-4, comprising an air intake pipe body 100, a first sleeve 200, a second sleeve 300 and a first silencer casing 400;

[0028] Please refer again Figure 1-4 The air intake pipe body 100 is used to support the first sleeve 200, the second sleeve 300 and the first silencer shell 400;

[0029] Please refer again Figure 1-4 The first sleeve 200 is fixedly connected to the lower side of the front and rear side walls of the outer wall of the first sleeve 200 with a positioning block 210, and the positioning blocks 210 are arranged from left to right. A first slot 220 is opened in the middle of the right side wall of the positioning block 210. The positioning block 210 is used to cooperate with the first slot 220 to limit the sleeve 360. The first sleeve 200 is located on the top upper side of the intake pipe body 100. The first sleeve 200 is used to support the first silencer shell 400;

[0030] Please refer again Figure 1-4 The upper sides of the front and rear side walls of the outer wall of the second sleeve 300 are fixedly connected with a positioning plate 310, and the positioning plate 310 is used to support the slider 340. The front side wall of the front positioning plate 310 and the rear side wall of the rear positioning plate 310 are provided with a second slot 320, and the second slots 320 are arranged in sequence from left to right. A through hole 330 is provided on the top of the positioning plate 310, and the through holes 330 are arranged in sequence from left to right. The second slot 320 is used to limit the sleeve 360. The inner cavity of the through hole 330 is slidably connected with the slider 340, and the slider 340 is used to support the sleeve 360. Positioning grooves 370 are provided on the left and right sides of the top of the positioning plate 310. The positioning grooves 370 are used to limit the positioning rod 240. The second sleeve 300 is located at the bottom lower side of the air inlet pipe body 100. The second sleeve 300 is used to cooperate with the first sleeve 200 to cover the air inlet pipe body 100 with the first silencer shell 400;

[0031] Please refer again Figure 1-4The inner wall of the first silencer housing 400 is fixedly connected with a first support sleeve 410, and the first support sleeve 410 is used to support the sleeve 420. The top of the inner wall of the upper first support sleeve 410 and the bottom of the inner wall of the lower first support sleeve 410 are fixedly connected with the sleeve 420, and the sleeve 420 is used to limit the push block 430. The inner cavity of the sleeve 420 is slidably connected with the push block 430, and the top of the upper push block 430 and the top of the inner cavity of the upper sleeve 420 and the bottom of the lower push block 430 and the bottom of the inner cavity of the lower sleeve 420 are fixedly connected. A second elastic member 440 is fixedly connected, and a push rod 450 is fixedly connected to the bottom of the upper push block 430 and the top of the lower push block 430, and the push rod 450 passes through the inner wall of the sleeve 420 and extends to the outside of the sleeve 420. The push block 430 is used to cooperate with the second elastic member 440 and the push rod 450 to push the buffer sleeve 480 to closely contact the intake pipe body 100. The first silencer sleeve 400 is fixedly connected to the inner wall of the first sleeve 200 and the inner wall of the second sleeve 300. The first silencer sleeve 400 is used for secondary silencing of noise.

[0032] Please refer again Figure 1-4 A fixing block 230 is fixedly connected to the lower left side of the front and rear side walls of the outer wall of the first sleeve 200 and the lower right side of the front and rear side walls of the outer wall. A positioning rod 240 is fixedly connected to the middle of the bottom of the fixing block 230, and the positioning rod 240 is inserted into the inner cavity of the positioning groove 370. The positioning rod 240 can cooperate with the positioning groove 370 to limit the left and right positions of the first sleeve 200 and the second sleeve 300.

[0033] Please refer again Figure 1-4 A first elastic member 350 is fixedly connected between the right side wall of the slider 340 and the right side wall of the inner cavity of the through hole 330. The first elastic member 350 and the second elastic member 440 are made of stainless steel. The first elastic member 350 and the second elastic member 440 made of stainless steel have high strength.

[0034] Please refer again Figure 1-4 A clamping sleeve 360 ​​is rotatably connected between the top and bottom of the slider 340, and the clamping sleeve 360 ​​is clamped between the inner cavities of the first clamping slot 220 and the second clamping slot 320. The clamping sleeve 360 ​​can cooperate with the first clamping slot 220 and the second clamping slot 320 to limit the upper and lower positions of the positioning block 210 and the positioning plate 310.

[0035] Please refer again Figure 1-4A second supporting shell 460 is fixedly connected between the bottom end of the upper push rod 450 and the top end of the lower push rod 450, and a second silencer shell 470 is fixedly connected to the inner side wall of the second supporting shell 460. The second silencer shell 470 and the first silencer shell 400 are made of polyester fiber cotton material. The second silencer shell 470 and the first silencer shell 400 made of polyester fiber cotton material have a higher sound insulation effect.

[0036] Please refer again Figure 1-4 The inner wall of the second silencer shell 470 is fixedly connected with a buffer shell 480, and the buffer shell 480 is made of polyurethane foam material. The buffer shell 480 made of polyurethane foam material has a high buffering capacity and high heat insulation performance, which can prevent the second silencer shell 470 from being damaged.

[0037] To summarize, the pressure generated by the contact between the buffer sleeve 480 and the intake pipe body 100 drives the second elastic member 440 to compress and generate a rebound force, and cooperates with the push block 430, the push rod 450 and the second support sleeve 460 to drive the second silencer sleeve 470 to closely contact the intake pipe body 100 with the help of the buffer sleeve 480, and is not easy to loosen, and the noise generated by the intake pipe is double-silenced by the first silencer sleeve 400 and the second silencer sleeve 470, so that the intake pipe has a good silencing effect and is easy to use.

[0038] To summarize, by pulling the card sleeve 360 ​​to the right, the slider 340 is driven to compress the first elastic member 350, and can be disengaged from the first card slot 220 and the second card slot 320 to rotate to the left, and then the first sleeve 200 and the second sleeve 300 can be disengaged from the air intake pipe body 100 by means of the positioning rod 240 and the positioning slot 370, so that the air intake pipe is easy to quickly remove the noise reduction mechanism of the air intake pipe, thereby improving the use efficiency of the air intake pipe.

[0039] In specific use, the technical personnel in this field first manually cover the outer wall of the air intake pipe body 100 with the first sleeve 200 and the second sleeve 300, drive the buffer sleeve 480 to closely contact the air intake pipe body 100, and the pressure generated by the buffer sleeve 480 contacting the outer wall of the air intake pipe body 100 compresses the second elastic member 440 with the help of the second support sleeve 460, the push rod 450 and the push block 430, and then completely merge the first sleeve 200 and the second sleeve 300 to drive Insert the positioning rod 240 into the positioning slot 370, then hold the ferrule 360 ​​and pull it to the right, drive the slider 340 to move the ferrule 360 ​​to the right by compressing the first elastic member 350, then rotate the ferrule 360 ​​to drive the ferrule 360 ​​into the first slot 220 and the second slot 320, and release the ferrule 360, drive the ferrule 360 ​​to reset by the rebound force of the first elastic member 350, and drive the ferrule 360 ​​to be stuck in the first slot 220 and the second slot 320.

[0040] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0041] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A diesel engine intake pipe with good silencing effect, characterized in that: The invention comprises an air intake pipe body (100), a first sleeve (200), a second sleeve (300) and a first silencer casing (400), wherein the first sleeve (200) is located at the top upper side of the air intake pipe body (100), the second sleeve (300) is located at the bottom lower side of the air intake pipe body (100), the first silencer casing (400) is fixedly connected to the inner side wall of the first sleeve (200) and the inner side wall of the second sleeve (300), and the outer side wall of the first sleeve (200) is fixedly connected to the lower side of the front and rear side walls. A positioning block (210) is connected, and the positioning blocks (210) are arranged in sequence from left to right, a first slot (220) is opened in the middle of the right side wall of the positioning block (210), a positioning plate (310) is fixedly connected to the upper sides of the front and rear side walls of the outer side wall of the second sleeve (300), a front side wall of the front positioning plate (310) and a rear side wall of the rear positioning plate (310) are opened with a second slot (320), and the second slots (320) are arranged in sequence from left to right, and a through hole (220) is opened on the top of the positioning plate (310) 330), and the through holes (330) are arranged in sequence from left to right, the inner cavity of the through hole (330) is slidably connected with a slider (340), the left and right sides of the top of the positioning plate (310) are provided with positioning grooves (370), the inner side wall of the first silencer shell (400) is fixedly connected with a first support sleeve (410), the top of the inner side wall of the first support sleeve (410) on the upper side and the bottom of the inner side wall of the first support sleeve (410) on the lower side are fixedly connected with a sleeve (420), and the inner cavity of the sleeve (42 ... and the inner side wall of the first support sleeve (410) is fixedly connected with a sleeve (420), and the inner cavity of the sleeve (420) is slidably connected with a slider (340), the left and right sides of the top of the positioning plate (310) are provided with positioning grooves (370), the inner side wall of the first silencer shell (400) is fixedly connected with a first support sleeve (410), and the inner side wall of the first support sleeve (410) A push block (430) is connected, and a second elastic member (440) is fixedly connected between the top of the upper push block (430) and the top of the inner cavity of the upper sleeve (420) and between the bottom of the lower push block (430) and the bottom of the inner cavity of the lower sleeve (420). A push rod (450) is fixedly connected between the bottom of the upper push block (430) and the top of the lower push block (430), and the push rod (450) passes through the inner wall of the sleeve (420) and extends to the outside of the sleeve (420).

2. A diesel engine intake pipe with good silencing effect according to claim 1, characterized in that: A fixing block (230) is fixedly connected to the lower left side of the front and rear side walls of the outer wall and the lower right side of the front and rear side walls of the outer wall of the first sleeve (200), and a positioning rod (240) is fixedly connected to the middle of the bottom of the fixing block (230), and the positioning rod (240) is inserted into the inner cavity of the positioning groove (370).

3. A diesel engine intake pipe with good silencing effect according to claim 1, characterized in that: A first elastic member (350) is fixedly connected between the right side wall of the slider (340) and the right side wall of the inner cavity of the through hole (330), and the first elastic member (350) and the second elastic member (440) are made of stainless steel.

4. A diesel engine intake pipe with good silencing effect according to claim 1, characterized in that: A clamping sleeve (360) is rotatably connected between the top and bottom of the slider (340), and the clamping sleeve (360) is clamped between the inner cavities of the first clamping slot (220) and the second clamping slot (320).

5. A diesel engine intake pipe with good silencing effect according to claim 1, characterized in that: A second support sleeve (460) is fixedly connected between the bottom end of the upper push rod (450) and the top end of the lower push rod (450), and a second silencer sleeve (470) is fixedly connected to the inner side wall of the second support sleeve (460). The second silencer sleeve (470) and the first silencer sleeve (400) are made of polyester fiber cotton material.

6. A diesel engine intake pipe with good silencing effect according to claim 5, characterized in that: The inner side wall of the second sound-absorbing casing (470) is fixedly connected to a buffer casing (480), and the buffer casing (480) is made of polyurethane foam material.

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