Air intake pipe structure of all-terrain vehicle

Abstract

The present invention belongs to the technical field of parts of all-terrain vehicles. Provided is an air intake pipe structure of an all-terrain vehicle. The problem in the prior art of the stability of connection between a filter sleeve and an air intake pipe body being relatively poor is solved. The air intake pipe structure of an all-terrain vehicle comprises a pipe body and a filter sleeve, which is arranged on the pipe body, wherein the pipe body is provided with several positioning grooves, the filter sleeve is provided with several positioning blocks, the several positioning grooves are circumferentially distributed in an outer wall of an air intake end of the pipe body, the several positioning blocks are circumferentially distributed on an inner wall of the filter sleeve, the positioning blocks can be embedded into or disengaged from the positioning grooves, and the relative positions of the positioning blocks and the positioning grooves can be adjusted by means of rotation such that a locked or unlocked state can be formed between the positioning blocks and the positioning grooves. The present invention has the advantages of improving the stability of connection between the filter sleeve and an air intake pipe body while being convenient to mount and dismount.

Description

Air intake pipe structure of all-terrain vehicle Technical Field

[0001] The invention belongs to the technical field of all-terrain vehicle parts and relates to an air intake pipe structure of an all-terrain vehicle. Background Art

[0002] Currently, all-terrain vehicles (ATVs) typically install a filter sleeve at the intake end of the intake pipe to filter dust and other impurities from the air and prevent particulate matter from contaminating the piston, which could cause mechanical instability and shorten the lifespan. Existing connections between the filter sleeve and the intake pipe typically use a steel band clamp. However, due to the vibrations generated by the vehicle during driving, the clamp can become loose due to fatigue over time, compromising the stability of the connection between the filter sleeve and the intake pipe.

[0003] Summary of the Invention

[0004] The present invention aims to solve the above problems in the existing technology and proposes an air intake pipe structure for an all-terrain vehicle. The technical problem to be solved by the present invention is how to improve the connection stability between the filter sleeve and the air intake pipe body while facilitating disassembly and assembly.

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] An air intake pipe structure for an all-terrain vehicle includes a pipe body and a filter sleeve arranged on the pipe body, characterized in that the pipe body is provided with a plurality of positioning grooves, and the filter sleeve is provided with a plurality of positioning blocks, the plurality of positioning grooves are distributed circumferentially on the outer wall of the air intake end of the pipe body, and the plurality of positioning blocks are distributed circumferentially on the inner wall of the filter sleeve, the positioning blocks can be embedded in or out of the positioning grooves, and the relative positions of the positioning blocks and the positioning grooves can be adjusted by rotation to form a locked or unlocked state.

[0007] Different from the steel belt hoop fixed structure in the prior art, the intake pipe structure of this all-terrain vehicle adopts a screw-type snap-on structure, that is, the relative position of the positioning block and the positioning groove is adjusted by rotation so that the two are locked or unlocked, and in the locked state, the positioning block can be embedded in the positioning groove, so that the intake pipe body and the filter sleeve are firmly connected and will not loosen due to vibration, thereby avoiding noise caused by unstable connection between the intake pipe body and the filter sleeve.

[0008] In the unlocked state, the positioning block can be disengaged from the positioning groove by rotating in the opposite direction, so that disassembly and assembly are convenient.

[0009] In the aforementioned air intake pipe structure for an all-terrain vehicle, the positioning groove includes an L-shaped guide section and a linear locking section connected to each other. The width of the locking section is gradually narrowed from the entrance, and the entrance of the guide section extends to the edge of the air intake end of the pipe body. The L-shaped guide section and its entrance extending to the edge of the air intake end of the pipe body facilitate the positioning block to enter the positioning groove. At the same time, after the positioning block enters the positioning groove, because the width of the locking section connected to the guide section is gradually narrowed from the entrance, the groove wall of the locking section has a clamping effect on the positioning block in the axial direction. Therefore, the relative position of the positioning block and the positioning groove can be adjusted by rotation to form a locked or unlocked state, making disassembly and assembly convenient.

[0010] In the aforementioned air intake pipe structure for an all-terrain vehicle, the inlet end of the locking section is open, while the other end is closed. The end wall of the closed end is inclined relative to the groove bottom of the locking section, and a retaining groove is recessed at the junction of the two. The positioning block has a positioning portion that can be embedded in the retaining groove, and the positioning portion can be disengaged from the retaining groove under the action of an external force. The inlet end of the locking section is open, which facilitates the positioning block to enter the positioning groove. The other end of the locking section is closed, so that it can block the positioning block entering the positioning groove in the circumferential direction. The positioning block can rest against the end wall of the closed end, and the positioning portion of the positioning block is embedded in the retaining groove of the positioning groove, so that the two are clamped in the radial direction, thereby achieving a better locking effect between the positioning block and the positioning groove. Based on this, the positioning block can be clamped and limited in the circumferential, axial, and radial directions, making the connection between the entire filter sleeve and the air intake pipe body more stable.

[0011] In the aforementioned intake pipe structure for an all-terrain vehicle, the positioning block is provided with inclined surfaces on either side of the positioning portion. The junction between the retaining groove and the bottom of the locking segment groove comprises an arcuate blocking surface. When the positioning portion is inserted into the retaining groove, one side wall of the positioning block abuts the end wall of the closed end of the locking segment, while the other side wall abuts the blocking surface. When the positioning portion is inserted into the retaining groove, the inclined surfaces on either side of the positioning block abut the end wall of the closed end of the locking segment and the blocking surface, respectively. At this point, the tube body and the filter sleeve disposed thereon are in a state of slight interference fit. Since the blocking surface is actually a curved surface with an inclined arc, the two inclined surfaces respectively abut against the closed end and the blocking surface, which can ensure both the left and right limit in the circumferential direction and the radial limit, so that the locking effect of the positioning block and the positioning groove is better, and because one of the inclined surfaces on the positioning block abuts against the arc-shaped blocking surface, under the action of external force, the positioning part can pass over the blocking surface and then disengage from the blocking groove, and there will also be an operational feel when the positioning part enters the blocking groove, which can distinguish whether the filter sleeve and the intake pipe body are connected in place. Therefore, the arc-shaped blocking surface here can also play a three-in-one effect. In the above-mentioned intake pipe structure of an all-terrain vehicle, a mounting groove is recessed on the outer wall of the intake end of the pipe body, and the mounting groove is located next to a number of positioning grooves and a sealing ring is provided in the mounting groove, and the sealing ring abuts against the inner wall of the filter sleeve. After the filter sleeve and the intake pipe body are connected, the sealing rings located adjacent to the several positioning grooves prevent impurities from entering the gap between the positioning grooves of the intake pipe body and the filter sleeve, thereby ensuring that all air entering the intake pipe is filtered by the filter sleeve. Furthermore, the sealing rings provide significant frictional resistance. Because the sealing rings abut the inner wall of the filter sleeve rather than its upper or lower surface, the direction of this frictional resistance aligns with the sliding direction of the positioning blocks out of the positioning grooves. Therefore, the sealing rings further ensure the stability of the connection between the filter sleeve and the intake pipe body during use.

[0012] Compared with the prior art, the advantages of the intake duct structure of the all-terrain vehicle are as follows: 1. The intake duct structure of the all-terrain vehicle adopts a screw-type buckle structure, that is, the relative position of the positioning block and the positioning groove is adjusted by rotation to lock or unlock the two, making it easy to assemble and disassemble. Because the width of the locking section gradually narrows from the entrance, the groove wall of the locking section clamps the positioning block in the axial direction. At the same time, the positioning portion of the positioning block engages the retaining groove of the positioning groove, so that the two are locked in the radial direction. In addition, in the circumferential direction, the other end of the locking section is closed, which can block the positioning block from entering the positioning groove. At the same time, the arc-shaped blocking surface can enhance the circumferential and radial limiting effects. Therefore, when the positioning block and the positioning groove are locked, the intake duct body and the filter sleeve are firmly connected and will not loosen due to vibration in the axial, circumferential, and radial directions, thereby avoiding noise caused by an unstable connection between the intake duct body and the filter sleeve.

[0013] 2. After the filter sleeve and the intake pipe body are connected, the sealing rings located beside the positioning grooves can prevent air containing impurities from entering through the gap between the positioning grooves of the intake pipe body and the filter sleeve, thereby ensuring that the air entering from the intake pipe has been filtered by the filter sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] FIG1 is a schematic diagram of the three-dimensional structure of the air intake pipe structure of the all-terrain vehicle.

[0015] FIG2 is an exploded view of the air intake pipe structure of the all-terrain vehicle.

[0016] FIG3 is a partial enlarged view of point A in FIG2 .

[0017] FIG4 is a cross-sectional view of the air intake pipe structure of the all-terrain vehicle.

[0018] FIG5 is a partial enlarged view of point B in FIG4 .

[0019] FIG6 is a partial cross-sectional view of the air intake pipe structure of the all-terrain vehicle.

[0020] In the figure, 1, tube body; 1a, air inlet end; 1b, mounting groove; 2, positioning groove; 2a, guide section; 2b, locking section; 3, filter sleeve; 4, positioning block; 4a, positioning part; 4b, inclined surface; 5, blocking groove; 6, blocking surface; 7, sealing ring. DETAILED DESCRIPTION

[0021] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solutions of the present invention, but the present invention is not limited to these embodiments.

[0022] An air intake pipe structure for an all-terrain vehicle, referring to Figures 1-6, includes a tube body 1 and a filter sleeve 3 arranged on the tube body 1, the tube body 1a is provided with a plurality of positioning grooves 2, the filter sleeve 3 is provided with a plurality of positioning blocks 4, the plurality of positioning grooves 2 are distributed circumferentially on the outer wall of the air intake end 1a of the tube body 1, and the plurality of positioning blocks 4 are distributed circumferentially on the inner wall of the filter sleeve 3, the positioning blocks 4 can be embedded in or out of the positioning grooves 2, and the relative positions of the positioning blocks 4 and the positioning grooves 2 can be adjusted by rotation to form a locked or unlocked state.

[0023] Specifically, referring to Figures 2 and 3, the positioning groove 2 includes an L-shaped guide section 2a and a linear locking section 2b connected to each other. The width of the locking section 2b is gradually narrowed from the entrance, and the entrance of the guide section 2a extends to the edge of the air inlet end 1a of the tube body 1.

[0024] Further, referring to Figures 2 and 3, the inlet end of the locking section 2b is open, and the other end is closed. The end wall of the closed end is inclined relative to the groove bottom of the locking section 2b. In this case, the end wall of the closed end is preferably gradually inclined toward the side of the locking section 2b away from the same positioning groove 2 along the axial direction away from the tube body 1, and a retaining groove 5 is recessed at the junction of the two. The positioning block 4 has a positioning portion 4a that can be embedded in the retaining groove 5, and the positioning portion 4a can be separated from the retaining groove 5 under the action of external force. The positioning portion 4a in this embodiment is only a smaller part of the positioning block 4, and after the positioning block 4 and the retaining groove 5 are engaged, the entire tube body 1 and the filter sleeve 3 are interference fit.

[0025] Furthermore, referring to Figures 2, 3, 4, and 5, the positioning block 4 is provided with inclined surfaces 4b on either side of the positioning portion 4a. The junction between the locking groove 5 and the bottom of the locking section 2b has an arcuate blocking surface 6. When the positioning portion 4a is inserted into the locking groove 5, one sidewall of the positioning block 4 abuts the end wall of the closed end of the locking section 2b, while the other sidewall abuts the blocking surface 6. Furthermore, the inclined surfaces 4b on either side of the positioning portion 4a in this embodiment smoothly transition with the surface of the positioning block 4. This structural arrangement, combined with the inclined end wall of the closed end, ensures that when an operator quickly tightens the pipe body 1 and the filter sleeve 3, even if excessive force causes the final position to be slightly overshot, the inclined surfaces 4b can smoothly return the positioning portion 4a to the locking groove 5. This slight return signal, combined with the feel of the positioning portion 4b entering the locking groove 5, reminds the operator that the limit position has been exceeded and the positioning portion 4b has been smoothly returned to the correct position.

[0026] 2 , 3 and 6 , a mounting groove 1 b is recessed on the outer wall of the air inlet end 1 a of the tube body 1 , the mounting groove 1 b is located beside the plurality of positioning grooves 2 and a sealing ring 7 is provided in the mounting groove 1 b , the sealing ring 7 abuts against the inner wall of the filter sleeve 3 .

[0027] In this embodiment, a plurality of positioning grooves 2 are preferably evenly distributed along the circumferential direction on the outer wall of the air inlet end 1a of the tube body 1, and a plurality of positioning blocks 4 are evenly distributed along the circumferential direction on the inner wall of the filter sleeve 3. The sealing ring 7 is preferably a sponge sealing strip. The sponge sealing strip has good resilience, good sealing performance, cold resistance and aging resistance, and a long service life.

[0028] When in use, first align the several positioning blocks 4 on the filter sleeve 3 with the entrances of the guide sections 2a on the several positioning grooves 2 on the intake pipe body 1, and then move the filter sleeve 3 toward the pipe body 1 so that the positioning blocks 4 enter the guide sections 2a of the positioning grooves 2, and then adjust the relative positions of the positioning blocks 4 and the positioning grooves 2 by rotating the filter sleeve 3 so that the two form a locked state (the locked state is that the positioning parts 4a on the positioning blocks 4 are stuck in the stuck grooves 5). When disassembling, rotate the filter sleeve 3 in the opposite direction so that the positioning parts 4a on the positioning blocks 4 are disengaged from the stuck grooves 5, and then continue to rotate the filter sleeve 3 so that the positioning blocks 4 return to the guide section 2a from the locking section 2b, and finally move the filter sleeve 3 in the direction away from the pipe body 1 so that the positioning blocks 4 are disengaged from the entrance of the guide section 2a.

[0029] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope of the appended claims.

Claims

1. An air intake pipe structure for an all-terrain vehicle, comprising a pipe body (1) and a filter sleeve (3) arranged on the pipe body (1), characterized in that: The tube body (1a) is provided with a plurality of positioning grooves (2), and the filter sleeve (3) is provided with a plurality of positioning blocks (4). The plurality of positioning grooves (2) are circumferentially distributed on the outer wall of the air inlet end (1a) of the tube body (1), and the plurality of positioning blocks (4) are circumferentially distributed on the inner wall of the filter sleeve (3). The positioning blocks (4) can be embedded in or separated from the positioning grooves (2), and the relative positions of the positioning blocks (4) and the positioning grooves (2) can be adjusted by rotation so that the two can be locked or unlocked.

2. The air intake pipe structure of an all-terrain vehicle according to claim 1, characterized in that: The positioning groove (2) comprises an L-shaped guide section (2a) and a linear locking section (2b) connected to each other, the width of the locking section (2b) gradually narrowing from the entrance, and the entrance of the guide section (2a) extends to the edge of the air inlet end (1a) of the tube body (1).

3. The air intake pipe structure of an all-terrain vehicle according to claim 2, characterized in that: The inlet end of the locking section (2b) is open, and the other end is closed. The end wall of the closed end is inclined relative to the groove bottom of the locking section (2b), and a locking groove (5) is recessed at the junction of the two. The positioning block (4) has a positioning portion (4a) that can be embedded in the locking groove (5), and the positioning portion (4a) can be separated from the locking groove (5) under the action of an external force.

4. The air intake pipe structure of an all-terrain vehicle according to claim 3, characterized in that: The positioning block (4) is provided with inclined surfaces (4b) on both sides of the positioning portion (4a), and the junction between the locking groove (5) and the bottom of the locking section (2b) has an arc-shaped blocking surface (6). When the positioning portion (4a) is embedded in the locking groove (5), one side wall of the positioning block (4) abuts against the end wall of the closed end of the locking section (2b), and the other side wall abuts against the blocking surface (6).

5. The air intake pipe structure of an all-terrain vehicle according to claim 1, 2, 3 or 4, characterized in that: An installation groove (1b) is recessed on the outer wall of the air inlet end (1a) of the tube body (1), the installation groove (1b) is located beside the plurality of positioning grooves (2) and a sealing ring (7) is arranged in the installation groove (1b), and the sealing ring (7) abuts against the inner wall of the filter sleeve (3).

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