阅读说明：本技术 一种前消排气管吊耳 (Preceding exhaust pipe lug that disappears ) 是由 唐叶辉 颜泽强 郭皓 李万强 罗明财 周纯彬 于 2020-08-29 设计创作，主要内容包括：本发明属于汽车零部件领域,具体涉及一种前消排气管吊耳,包括外壳,所述外壳为封闭的环状冲压件,外壳内填充有橡胶,橡胶中沿外壳长度方向开有排气管固定孔；所述外壳包括用于与车身连接的连接面和朝向地面的底面；所述外壳的连接面上开有沉孔,所述沉孔中设置有用于与车身相连的螺栓,所述螺栓的螺头部置于沉孔内,所述螺栓的螺杆部延伸出所述沉孔外；所述橡胶中排气管固定孔的外围间隔设有与其同轴的内管,所述内管的两端延伸出橡胶外并与其形成凸台。本发明提供一种前消排气管吊耳,解决了现有技术导致的排气管容易发生异响和损坏的问题。(The invention belongs to the field of automobile parts, and particularly relates to a front exhaust pipe lifting lug which comprises a shell, wherein the shell is a closed annular stamping part, the shell is filled with rubber, and an exhaust pipe fixing hole is formed in the rubber along the length direction of the shell; the shell comprises a connecting surface used for being connected with a vehicle body and a bottom surface facing the ground; a counter bore is formed in the connecting surface of the shell, a bolt used for being connected with a vehicle body is arranged in the counter bore, the screw head of the bolt is arranged in the counter bore, and the screw rod of the bolt extends out of the counter bore; the periphery of the exhaust pipe fixing hole in the rubber is provided with inner pipes which are coaxial with the exhaust pipe fixing hole at intervals, and two ends of each inner pipe extend out of the rubber and form bosses with the inner pipes. The invention provides a front exhaust pipe lifting lug, which solves the problem that an exhaust pipe is easy to generate abnormal sound and damage in the prior art.)

1. The utility model provides a preceding exhaust pipe lug that disappears which characterized in that: the exhaust pipe fixing device comprises a shell (1), wherein the shell (1) is a closed annular stamping part, rubber (2) is filled in the shell (1), and an exhaust pipe fixing hole (16) is formed in the rubber (2) along the length direction of the shell (1);

the shell (1) comprises a connecting surface (3) used for being connected with a vehicle body and a bottom surface (4) facing the ground;

a counter bore (9) is formed in the connecting surface (3) of the shell (1), a bolt (5) used for being connected with a vehicle body is arranged in the counter bore (9), the head of the bolt (5) is arranged in the counter bore (9), and the screw part of the bolt (5) extends out of the counter bore (9);

the periphery of the exhaust pipe fixing hole (16) in the rubber (2) is provided with inner pipes (6) coaxial with the exhaust pipe fixing hole at intervals, and two ends of each inner pipe (6) extend out of the rubber (2) and form bosses with the inner pipes.

2. The forward exhaust pipe lug of claim 1, wherein: the connecting surface (3) of the shell (1) protrudes outwards, so that the cross section of the shell (1) forms a convex shape (7);

3. the boom of claim 2, wherein: the bottom surface (4) of the shell (1) protrudes outwards, so that the bottom surface (4) of the shell (1) with the cross section of a convex shape (7) forms an inverted triangle (8).

4. The forward exhaust pipe lug of claim 1, wherein: the novel bolt is characterized in that a groove (10) is formed in the inner wall of the connecting face (3) of the shell (1), a protruding portion (11) is arranged on the flange face of the bolt (5), and the protruding portion (11) is embedded into the groove (10).

5. The forward exhaust pipe lug of claim 1, wherein: the connecting surface (3) of the shell (1) is provided with a convex rib (12) taking the counter bore (9) as the center.

6. The forward exhaust pipe lug of claim 5, wherein: the convex ribs (12) are encircled to form a square.

7. The forward exhaust pipe lug of claim 1, wherein: be provided with first logical groove (13) in inner tube (6) top rubber (2), first logical groove (13) cross section is the W form, be provided with second logical groove (14) in inner tube (6) below rubber (2), second logical groove (14) cross section is the wing form.

8. The forward exhaust pipe lug of claim 1, wherein: openings (15) are arranged at the front end and the rear end of the inner pipe (6).

Technical Field

The invention belongs to the field of automobile parts, and particularly relates to a front exhaust pipe lifting lug.

Background

The vibration excitation of the engine and the vibration excitation of the wheels in contact with the ground are the main sources of vibration in the vehicle. The exhaust pipe lifting lug plays a role in absorbing part of the vibration through the elasticity and high damping characteristic of the rubber when the vibration is transmitted to the lifting lug part, so that the aim of shock absorption or vibration isolation is fulfilled.

The existing lifting lugs are generally made of pure rubber in a whole manner, so that part of vibration can be relieved and the exhaust pipe can be fixed. However, when the bearing force value of the lifting lug exceeds the maximum force value designed by the pure rubber lifting lug, the exhaust pipe collides with the vehicle body or the ground, abnormal sound is generated, and the exhaust pipe is even damaged. Meanwhile, rubber also has certain service life limitation, and can fail after being subjected to repeated stretching and compression, and if not predicted in advance, abnormal sound and the falling of the exhaust pipe can also occur. Therefore, in order to solve the above problems, the present invention provides a new front exhaust pipe lifting lug.

Disclosure of Invention

The invention provides a front exhaust pipe lifting lug, which solves the problem that an exhaust pipe is easy to generate abnormal sound and damage in the prior art.

In order to achieve the purpose, the invention provides a front exhaust pipe lifting lug which comprises a shell, wherein the shell is a closed annular stamping part, the shell is filled with rubber, and an exhaust pipe fixing hole is formed in the rubber along the length direction of the shell;

the shell comprises a connecting surface used for being connected with a vehicle body and a bottom surface facing the ground;

a counter bore is formed in the connecting surface of the shell, a bolt used for being connected with a vehicle body is arranged in the counter bore, the screw head of the bolt is arranged in the counter bore, and the screw rod of the bolt extends out of the counter bore;

the periphery of the exhaust pipe fixing hole in the rubber is provided with inner pipes which are coaxial with the exhaust pipe fixing hole at intervals, and two ends of each inner pipe extend out of the rubber and form bosses with the inner pipes.

Furthermore, the connecting surface of the shell protrudes outwards, so that the cross section of the shell forms a convex shape;

furthermore, the bottom surface of the shell protrudes outwards, so that the bottom surface of the shell with the convex cross section forms an inverted triangle.

Furthermore, a groove is formed in the inner wall of the connecting surface of the shell, a protruding portion is installed on the flange surface of the bolt, and the protruding portion is embedded into the groove.

Furthermore, a convex rib which takes the counter bore as the center is arranged on the connecting surface of the shell.

Furthermore, the convex ribs are enclosed into a square shape.

Furthermore, a first through groove is formed in rubber above the inner pipe, the cross section of the first through groove is W-shaped, a second through groove is formed in rubber below the inner pipe, and the cross section of the second through groove is wing-shaped.

Furthermore, openings are formed in the front end opening portion and the rear end opening portion of the inner tube.

The invention has the beneficial effects that: compared with the prior art, the invention has the following advantages: 1. the product quality of the lifting lug is improved. Because the hard spacing that provides through panel beating stamping workpiece and metal inner tube makes the blast pipe of being connected with the lug only can remove in specific within range, avoids the production of abnormal sound. Meanwhile, the strength of the metal piece is superior to that of rubber, so that the lifting lug is not easy to damage as a whole compared with a pure rubber lifting lug, and the service life of the lifting lug is longer.

2. The installation operation of the host factory is more convenient. The lug is connected through screw rod nut with automobile body and blast pipe for the lug need not consider the plug power influence, and the assembly is more swift.

Drawings

Fig. 1 is a schematic structural diagram of a front exhaust pipe lifting lug.

Fig. 2 is a top view of fig. 1.

Fig. 3 is a cross-sectional view of fig. 1.

Fig. 4 is a top view of the bolt of fig. 1.

The reference numerals include: 1-shell, 2-rubber, 3-connecting surface, 4-bottom surface, 5-bolt, 6-inner tube, 7-convex shape, 8-inverted triangle, 9-counter bore, 10-groove, 11-protrusion, 12-convex edge, 13-first through groove, 14-second through groove, 15-notch and 16-exhaust pipe fixing hole.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments more apparent, the present invention is described in further detail below with reference to the accompanying drawings and the embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.