Air inlet pipe support assembly

Abstract

The utility model discloses an air inlet pipe support assembly which comprises an original support and a damping support, the damping support is installed in a gap between the original support and an air inlet pipe, and the air inlet pipe is connected with the original support through the damping support. The vibration reduction support enables the gap between the air inlet pipe and the driving chamber to be reduced, meanwhile, vibration energy transmitted to the air inlet pipe due to vibration of a vehicle body can be effectively buffered and absorbed by the rubber bushing on the vibration reduction support, the support body is provided with the bent part and the horizontal part, and therefore the support can be attached to and support the air inlet pipe. Therefore, the risk that the air inlet pipe is loosened or falls off due to vibration is avoided, and the anti-vibration performance of the air inlet pipe is improved. Compared with a traditional air inlet pipe support, the support body of the variable cross-section structure is lighter in mass and higher in strength. The section is the L-shaped section in arc surface transition, the problem of stress concentration of the support is solved, the positioning protruding points on the rubber bushing are matched with the positioning through holes in the support body, initial torsion load caused by dislocation of the rubber bushing is avoided, and the service life of the support is effectively prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts, in particular to an air intake pipe bracket assembly for a heavy truck. Background Art

[0002] In the prior art, Figure 1 、 Figure 2 As shown, the original bracket 2 is fixed to the rear side of the cab 4 of the heavy truck, which is used to fix the air intake pipe 3 to the rear side of the cab 4 of the heavy truck. Figure 3 As shown, after the intake pipe 3 and the original bracket 2 are fixed to the rear side of the vehicle's cab 4, a certain gap 5 exists between the intake pipe 3 and the original bracket 2, as the length A of the original bracket 2 is generally greater than the width B of the intake pipe 3. Due to the excessive gap 5, when the intake pipe 3 introduces gas into the engine, it vibrates due to bumpy roads and the flow of gas within the intake pipe 3. This can easily destabilize the fixation between the intake pipe 3 and the connecting piece, causing the intake pipe 3 to vibrate and, in severe cases, fall off.

[0003] After searching, there is no patent related to this utility model.

[0004] In summary, how to design an intake pipe bracket assembly that can fill the gap between the intake pipe and the original bracket and improve the vibration resistance of the intake pipe is a technical problem that needs to be solved urgently. Utility Model Content

[0005] The technical problem to be solved by the present invention is to provide an intake pipe bracket assembly that can fill the gap between the intake pipe and the original bracket and improve the vibration resistance of the intake pipe in response to the defects in the prior art.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: an intake pipe bracket assembly, including an original bracket, which is connected to the cab, and also includes a vibration damping bracket, which is located in the gap between the original bracket and the intake pipe, and the intake pipe is connected to the original bracket through the vibration damping bracket.

[0007] Furthermore, the shock-absorbing bracket includes a frame body and two rubber bushings, and the two ends of the frame body are respectively connected to the two rubber bushings through connectors; the original bracket is connected to the rubber bushings, and the air intake pipe is connected to the frame body.

[0008] Furthermore, the rubber bushing includes a rubber body, a metal upper plate vulcanized at the upper end of the rubber body, and a metal lower plate vulcanized at the lower end of the rubber body. A bolt is further provided in the metal upper plate, the rod of the bolt passes through the rubber body and the metal upper plate and is exposed on the metal upper plate. A third mounting hole is further provided inside the rubber body.

[0009] The rod of the bolt exposed on the metal upper plate passes through the original bracket and is locked with the nut; the connecting piece adopts a blind rivet, which passes through the frame and is inserted into the third mounting hole, thereby connecting the frame and the rubber bushing.

[0010] Furthermore, the metal upper plate is provided with a first central through hole, and the bolt is interference-pressed into the first central through hole of the metal upper plate through its knurled portion, so that the bolt is fixed to the metal upper plate.

[0011] Furthermore, the frame includes a horizontal portion and frame ends arranged at both sides of the horizontal portion, and the frame ends are connected to the horizontal portion through the bent portion to form an integrated structure.

[0012] Furthermore, the metal lower plate is provided with positioning protrusions; the end of the frame is also provided with positioning through holes, and the positioning protrusions are inserted into the positioning through holes for positioning.

[0013] Furthermore, the cross section S2 of the curved portion and the cross section S1 of the horizontal portion of the frame are both L-shaped, and the area of ​​the cross section S2 of the curved portion is smaller than the area of ​​the cross section S1 of the horizontal portion.

[0014] The beneficial effects of the present invention are as follows: the present invention provides an intake pipe bracket assembly, comprising an original bracket and a shock-absorbing bracket, wherein the shock-absorbing bracket is fixed in the gap between the original bracket and the intake pipe, and the intake pipe is connected to the original bracket through the shock-absorbing bracket. The shock-absorbing bracket reduces the gap between the intake pipe and the heavy truck, and can also effectively absorb and buffer the vibration energy transmitted to the intake pipe due to the vibration of the vehicle body by the rubber bushing on the shock-absorbing bracket, thereby avoiding the risk of the intake pipe loosening or falling off due to vibration, and greatly improving the vibration-proof performance of the intake pipe. The frame is provided with a curved portion and a horizontal portion, which is conducive to the intake pipe bracket fitting and supporting the intake pipe; the frame adopts a variable cross-section structure, which is lighter and stronger than the traditional intake pipe bracket; the cross-section is an L-shaped cross-section with a circular arc surface transition, which solves the stress concentration problem of the bracket; the rubber bushing is provided with a positioning protrusion that cooperates with the positioning through-hole on the frame, avoiding the initial torsional load caused by the misalignment of the rubber bushing during installation, and effectively improving the service life of the shock-absorbing bracket. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the arrangement of the air intake pipe and the original bracket of a heavy-duty truck in the prior art;

[0016] Figure 2 This is a schematic diagram of the arrangement of the intake pipe and the original bracket in the prior art;

[0017] Figure 3 A top view of the arrangement of the intake pipe and the original bracket in the prior art;

[0018] Figure 4 This is a schematic diagram of the three-dimensional structure of the shock-absorbing bracket in the embodiment of the utility model;

[0019] Figure 5 This is a schematic diagram of the three-dimensional structure of the frame in the embodiment of the utility model;

[0020] Figure 6 This is an exploded view of the three-dimensional structure of the rubber bushing in the embodiment of the present utility model;

[0021] Figure 7 This is a cross-sectional view of the structure of the rubber bushing in the embodiment of the present utility model;

[0022] Figure 8 This is a schematic diagram of the three-dimensional structure of the vibration-damping bracket in the embodiment of the present utility model;

[0023] Figure 9 This is a schematic structural diagram of an embodiment of the present utility model;

[0024] Figure 10 This is a schematic diagram of the three-dimensional structure of the intake pipe bracket assembly according to an embodiment of the present utility model.

[0025] In the figure: 1. Vibration damping bracket, 11. Bracket, 111. Bend, 112. First mounting hole, 113. Positioning through-hole, 114. Second mounting hole, 115. Horizontal portion, 12. Rubber bushing, 121. Metal upper plate, 1211. First center through-hole, 122. Bolt, 1221. Knurled portion, 123. Rubber body, 124. Metal lower plate, 1242. Positioning bump, 125. Third mounting hole, 13. Blind rivet, 14. Mounting bolt, 2. Original bracket, 3. Intake pipe, 31. Fixing hole, 4. Cab, 5. Clearance. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the utility model embodiments clearer, the following will be combined with the appended drawings of the utility model embodiments. Figure 4-10 , clearly and completely describing the technical solutions of the utility model embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the described embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of the utility model. Example

[0027] like Figure 10 As shown, the intake pipe bracket assembly of the present application consists of two parts: the original bracket 2 and the shock-absorbing bracket 1. The original bracket 2 is connected to the cab 4 by bolts and nuts. The shock-absorbing bracket 1 is installed in the gap between the original bracket 2 and the intake pipe 3. The intake pipe 3 is connected to the original bracket 2 through the shock-absorbing bracket 1.

[0028] like Figure 7 As shown, the rubber bushing 12 includes a rubber body 123, a metal upper plate 121 vulcanized at the upper end of the rubber body 123, and a metal lower plate 124 vulcanized at the lower end of the rubber body 123. A bolt 122 is also provided in the metal upper plate 121. The rod of the bolt 122 passes through the rubber body 123 and the metal upper plate 121 and is exposed from the metal upper plate 121. A third mounting hole 125 is also provided inside the rubber body 123. The third mounting hole 125 is arranged along the axial direction of the rubber body 123 and is located below the bolt 122. The third mounting hole 125 is coaxially arranged with the bolt 122.

[0029] like Figure 6 、 Figure 7 As shown, the metal upper plate 121 has a first central through hole 1211, and the bolt 122 is pressed into the first central through hole 1211 of the metal upper plate 121 through its knurled portion 1221, so that the bolt 122 is fixed to the metal upper plate 121. The metal lower plate 124 of the rubber bushing 12 has a second positioning protrusion 1242 and a second central through hole 1241. When the metal upper plate 121 and the bolt 122 are fixed together, the rubber compound and the metal lower plate 124 are added to the vulcanization mold for vulcanization, the following is formed. Figure 7 The rubber bushing 12 shown in . Wherein the rubber compound is formed into a rubber body 123 which is closely combined with a metal upper plate 121 and a metal lower plate 124 with bolts 122 after vulcanization molding in a mold.

[0030] When a heavy truck is driving and the vehicle body is bumpy due to bad road conditions or the gas does not flow well in the intake pipe, the rubber bushing 12 can absorb the vibration energy and play a role in buffering and reducing vibration, thereby reducing the impact of the vibration on the intake pipe and preventing the intake pipe from loosening or falling off due to vibration.

[0031] Obviously, compared with the prior art in which the bolt 122 and the metal upper plate 121 are fixed by welding, the application does not use welding in the process of forming the rubber bushing 12. Instead, the metal upper plate 121 and the knurled portion 1221 of the bolt 122 are first interference fit together, and then the whole is vulcanized together with the rubber body 123 and the metal lower plate 124, so that the rubber bushing 12 becomes a whole. The entire rubber bushing 12 assembly and fixing process is more convenient and quick, while reducing production costs.

[0032] like Figure 5 and Figure 7As shown, the frame 11 has a first mounting hole 112 and a positioning through hole 113. The positioning protrusion 1242 on the rubber bushing 12 is placed on the positioning through hole 113 of the frame 11. At this time, the first mounting hole 112 on the frame 11 is directly opposite the third mounting hole 125 on the rubber bushing 12. The blind rivet 13 passes through the first mounting hole 112 and the third mounting hole 125 in sequence to fix the rubber bushing 12 to the end of the frame 11. The mutual cooperation between the positioning protrusion 1242 on the rubber bushing 12 and the positioning through hole 113 on the frame 11 avoids the initial torsional load generated by the misalignment of the rubber bushing 12 during installation, plays the role of preventing the rubber bushing 12 from rotating, and effectively improves the service life of the vibration damping bracket 1.

[0033] like Figure 8 As shown, the vibration damping bracket 1 and the original bracket 2 are installed together by tightening the bolts 122 and nuts, and then the mounting bolts 14 are passed through the fixing holes 31 on the intake pipe 3 and tightened with the nuts, so that the vibration damping bracket 1 is installed between the original bracket 2 and the intake pipe 3, filling the gap 5 between the original bracket 2 and the intake pipe 3, thereby effectively preventing the intake pipe 3 from loosening or falling off due to vibration caused by the gap 5 being too large.

[0034] When a heavy truck is driving, the body of the truck vibrates due to uneven and bumpy roads, and the vibration energy of the body is transmitted to the intake pipe 3, or the gas vibrates when flowing in the intake pipe 3, the rubber bushings 12 at both ends of the bracket can effectively buffer and absorb the vibration energy on the intake pipe 3, effectively buffer the vibration of the intake pipe 3, and improve the anti-vibration performance of the intake pipe 3.

[0035] like Figure 4 、 Figure 8 As shown, the vibration damping bracket 1 includes a frame 11 and a rubber bushing 12. The two ends of the frame 11 are connected to the two rubber bushings 12 through connectors. The original bracket 2 is connected to the rubber bushing 12, and the intake pipe 3 is connected to the frame 11. Figure 5 As shown, the frame 11 includes a horizontal portion 115 and frame ends disposed on either side of the horizontal portion 115. The frame ends are connected to the horizontal portion 115 via curved portions 111 to form an integral structure. A first mounting hole 112, a positioning through-hole 113, and a second mounting hole 114 are all disposed on the frame ends. The rod of the mounting bolt 14 passes through the second mounting hole 114 and the fixing hole 31 of the intake pipe 3, where it is tightened with a nut, thereby securing the intake pipe bracket assembly of the present application to the side and rear of the heavy-duty truck's cab 4.

[0036] like Figure 8 As shown, the curved portion 111 and the horizontal portion 115 of the vibration-damping bracket 1 match the outer circumferential surface of the intake pipe 3, and can effectively fit and support the intake pipe 3, so that the intake pipe 3 and the intake pipe bracket of the present application can be tightly fitted and fixed.

[0037] like Figure 9 As shown, the cross section S2 of the curved portion 111 and the cross section S1 of the horizontal portion 115 of the frame 11 are both L-shaped, and the area of ​​the cross section S2 of the curved portion 111 is smaller than the area of ​​the cross section S of the horizontal portion 115, as shown in FIG. Figure 5 As shown, the variable cross-section frame structure adopted by the intake pipe frame in the present application is lighter than the traditional uniform cross-section frame because the size of its curved portion 111 is smaller than the size of the horizontal portion 115 .

[0038] In addition, the L-shaped cross-section transition area adopts an arc surface, which effectively solves the problem of stress concentration in the frame 11 and makes the frame 11 stronger.

[0039] The above embodiments are only used to illustrate the present invention, rather than to limit the present invention. Technicians in the relevant technical field can make various changes or modifications without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions should also fall within the scope of protection of the present invention, and the scope of protection of the present invention should be defined by the claims.

Claims

1. An air intake pipe bracket assembly, comprising an original bracket (2), wherein the original bracket (2) is connected to a cab 4, and is characterized in that: It also includes a vibration-damping bracket (1), which is located in the gap between the original bracket (2) and the intake pipe (3), and the intake pipe (3) is connected to the original bracket (2) through the vibration-damping bracket (1).

2. The intake pipe bracket assembly according to claim 1, characterized in that: The shock-absorbing bracket (1) comprises a frame body (11) and two rubber bushings (12), and two ends of the frame body (11) are respectively connected to the two rubber bushings (12) through connecting pieces; The original bracket (2) is connected to the rubber bushing (12), and the air intake pipe (3) is connected to the frame (11).

3. The intake pipe bracket assembly according to claim 2, characterized in that: The rubber bushing 12 comprises a rubber body (123), a metal upper plate (121) vulcanized at the upper end of the rubber body (123), and a metal lower plate (124) vulcanized at the lower end of the rubber body (123); a bolt (122) is further provided in the metal upper plate (121); a rod of the bolt (122) passes through the rubber body (123) and the metal upper plate (121) and is exposed outside the metal upper plate (121); and a third mounting hole (125) is further provided inside the rubber body (123); The rod of the bolt (122) exposed on the metal upper plate (121) passes through the original bracket (2) and is locked with a nut; the connecting piece adopts a blind rivet, which passes through the frame (11) and is inserted into the third mounting hole (125), thereby connecting the frame (11) and the rubber bushing 12.

4. The intake pipe bracket assembly according to claim 3, characterized in that: The metal upper plate (121) is provided with a first central through hole (1211), and the bolt (122) is interference-pressed into the first central through hole (1211) of the metal upper plate (121) through its knurled portion (1221), so that the bolt (122) and the metal upper plate (121) are fixed together.

5. The intake pipe bracket assembly according to claim 2, characterized in that: The frame body 11 comprises a horizontal portion (115) and frame body ends arranged at both sides of the horizontal portion (115), wherein the frame body ends are connected to the horizontal portion (115) via a bent portion (111) to form an integrated structure.

6. The intake pipe bracket assembly according to claim 3, characterized in that: The metal lower plate (124) is provided with a positioning protrusion (1242); the end of the frame is also provided with a positioning through hole (113), and the positioning protrusion (1242) is inserted into the positioning through hole (113) for positioning.

7. The intake pipe bracket assembly according to claim 5, characterized in that: The cross section S2 of the curved portion (111) and the cross section S1 of the horizontal portion (115) are both L-shaped, and the area of ​​the cross section S2 of the curved portion (111) is smaller than the area of ​​the cross section S1 of the horizontal portion (115).

Images