Exhaust pipe heat shield fixing structure

Abstract

The utility model relates to the technical field of automobile exhaust pipes, and discloses an exhaust pipe heat shield fixing structure which comprises a heat insulation plate, a mounting plate and a mounting hole formed in the mounting plate, a fixing mechanism is arranged at the bottom end of the heat insulation plate, a protection mechanism is arranged at the upper end of the heat insulation plate, and the fixing mechanism comprises a heat shield and an arc-shaped clamping plate. Through the arrangement of the fixing cylinder, the sliding block, the sliding rod and the spring, when an automobile and the exhaust pipe resonate, the sliding rod can drive the sliding block to slide in the fixing cylinder, under the elastic potential energy of the spring and damping in the fixing cylinder, vibration force of the exhaust pipe and the heat insulation cover can be fully absorbed, and the heat insulation cover is prevented from loosening and even falling off; the heat insulation effect and the driving safety are influenced. And by rotating the hand-screwing screw rod, the two arc-shaped clamping plates can clamp and fix exhaust pipes with different diameters, so that the effect of wide application range is achieved while the fixing effect on the exhaust pipe heat insulation cover is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile exhaust pipes, in particular to a fixing structure of an exhaust pipe heat insulation cover. Background Art

[0002] With the development of the automobile industry, the comfort and safety of vehicles are receiving more and more attention. As the channel for vehicles to discharge exhaust gas, the high temperature generated by the exhaust pipe needs to be effectively isolated to protect the vehicle chassis and nearby components from heat damage, while also reducing the impact on the environment. The automobile exhaust pipe heat shield is a layer of heat insulation installed around the exhaust pipe of the automobile engine. The purpose of installation is to prevent the high temperature generated by the exhaust pipe itself from radiating to adjacent components and causing hidden dangers, and to increase the safety performance of the engine when it is working. Its main functions are heat insulation, noise reduction and protection.

[0003] After long-term use, the existing exhaust pipe heat insulation cover is prone to loosening or even falling off due to the vibration caused by the car driving, affecting the insulation effect and driving safety. At the same time, the exhaust pipe heat insulation cover cannot adapt to exhaust pipes of different diameters during installation. Therefore, it is necessary to provide an exhaust pipe heat insulation cover fixing structure. Utility Model Content

[0004] The utility model aims to provide an exhaust pipe heat insulation cover fixing structure to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fixing structure of an exhaust pipe heat insulation cover, comprising a heat insulation board, a mounting plate and a mounting hole provided on the mounting plate, a fixing mechanism being provided at the bottom end of the heat insulation board, and a protective mechanism being provided at the upper end of the heat insulation board; the fixing mechanism comprises a heat insulation cover and an arc-shaped clamping plate, a groove being provided at the bottom end of the heat insulation board, a bidirectional screw being rotatably connected in the groove, ball nuts being threadedly connected at both ends of the bidirectional screw, the ball nut being fixedly connected to the heat insulation cover, a hand screw being rotatably connected at one end of the arc-shaped clamping plate, a screw hole being provided on the heat insulation cover, and the hand screw being threadedly connected to the screw hole; the protective mechanism comprises a fixing cylinder, a sliding block being slidably connected in the fixing cylinder, a sliding rod being fixedly provided at the bottom end of the sliding block, and a spring being sleeved on the sliding rod.

[0006] Preferably, a moving block is fixedly provided on the heat insulation cover, a limiting rod is fixedly provided on the inner wall of the groove, the moving block is slidably connected to the limiting rod, and one end of the bidirectional screw rod rotatably passes through the groove and is fixedly connected to a hand-tightening block.

[0007] Preferably, guide rods are fixedly provided at both ends of the arc-shaped clamping plate centered on the hand-tightened screw, and one end of the guide rod slides through the heat insulation cover and is fixedly provided with a limit block.

[0008] Preferably, a fixing plate is fixedly provided at the bottom end of the heat insulation cover, a fixing hole is opened on the fixing plate, a fastening bolt is inserted into the fixing hole, and a nut is threadedly connected to one end of the fastening bolt.

[0009] Preferably, both ends of the heat insulation cover are provided with heat dissipation grooves, and the heat dissipation grooves at both ends are connected.

[0010] Preferably, the fixed cylinder is fixedly arranged on the bottom end of the mounting plate, a connecting plate is fixedly arranged on the heat insulation plate, one end of the sliding rod slides through the fixed cylinder and is fixedly connected to the connecting plate, and the spring is fixedly arranged between the fixed cylinder and the sliding block.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1) The exhaust pipe heat shield fixing structure, through the arrangement of the fixed cylinder, the sliding block, the sliding rod and the spring, enables the sliding rod to drive the sliding block to slide in the fixed cylinder when the automobile and the exhaust pipe resonate. Under the elastic potential energy of the spring and the damping in the fixed cylinder, the vibration force of the exhaust pipe and the heat shield can be fully absorbed, thereby preventing the heat shield from loosening or even falling off, which affects the heat insulation effect and driving safety.

[0013] 2) The exhaust pipe heat insulation cover fixing structure rotates the bidirectional screw rod by rotating the hand-tightening block, so that the ball nuts at both ends of the bidirectional screw rod can drive the two heat insulation covers to move toward each other under the action of the thread, and the heat insulation cover is buckled on the exhaust pipe so that the exhaust pipe is placed between the two arc-shaped clamping plates. Then, the hand-tightening block is rotated in the opposite direction to reduce the distance between the two heat insulation covers, and then the arc-shaped clamping plates are moved under the action of the thread by rotating the hand-tightening screw, so that the two arc-shaped clamping plates can clamp and fix exhaust pipes of different diameters, thereby improving the fixing effect of the exhaust pipe heat insulation cover and having a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the exhaust pipe heat insulation cover fixing structure of the utility model;

[0015] Figure 2 It is a schematic cross-sectional structure diagram of the heat dissipation plate of the utility model;

[0016] Figure 3 It is a three-dimensional structural schematic diagram of the fixing mechanism of the utility model;

[0017] Figure 4 It is a three-dimensional structural schematic diagram of the protective mechanism of the utility model.

[0018] In the figure: 1. heat insulation board; 2. mounting plate; 3. mounting hole; 4. fixing mechanism; 401. heat insulation cover; 402. ball nut; 403. moving block; 404. bidirectional screw; 405. hand-tightening block; 406. limiting rod; 407. arc clamp; 408. hand-tightening screw; 409. guide rod; 410. limiting block; 411. heat dissipation groove; 412. fixing plate; 413. fixing hole; 414. fastening bolt; 415. nut; 5. protection mechanism; 501. connecting plate; 502. fixing cylinder; 503. sliding block; 504. sliding rod; 505. spring. DETAILED DESCRIPTION

[0019] 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.

[0020] Embodiment 1

[0021] Combination Figure 1-Figure 4 A fixing structure of an exhaust pipe heat shield comprises a heat shield 1, a mounting plate 2 and a mounting hole 3 provided on the mounting plate 2, a fixing mechanism 4 is provided at the bottom end of the heat shield 1, and a protective mechanism 5 is provided at the upper end of the heat shield 1.

[0022] See also Figure 2 and Figure 3 , it is further obtained that the fixing mechanism 4 includes a heat insulation cover 401 and an arc-shaped clamping plate 407, a groove is provided at the bottom end of the heat insulation plate 1, a bidirectional screw rod 404 is rotatably connected in the groove, both ends of the bidirectional screw rod 404 are threadedly connected with ball nuts 402, the ball nuts 402 are fixedly connected to the heat insulation cover 401, one end of the arc-shaped clamping plate 407 is rotatably connected with a hand screw rod 408, a screw hole is provided on the heat insulation cover 401, and the hand screw rod 408 is threadedly connected to the screw hole; a moving block 403 is fixedly provided on the heat insulation cover 401, a limit rod 406 is fixedly provided on the inner wall of the groove, the moving block 403 is slidably connected with the limit rod 406, and the bidirectional screw rod 404 is threadedly connected with the ball nuts 402. One end of the screw rod 404 rotatably passes through the groove and is fixedly connected with a hand-tightening block 405, and both ends of the arc-shaped clamping plate 407 with the hand-tightening screw rod 408 as the center are fixedly provided with guide rods 409, one end of the guide rod 409 slides through the heat insulation cover 401 and is fixedly provided with a limiting block 410, and a fixing plate 412 is fixedly provided at the bottom end of the heat insulation cover 401, and a fixing hole 413 is opened on the fixing plate 412, and a fastening bolt 414 is inserted in the fixing hole 413, and one end of the fastening bolt 414 is threadedly connected with a nut 415, and heat dissipation grooves 411 are opened at both ends of the heat insulation cover 401, and the heat dissipation grooves 411 at both ends are connected.

[0023] Specifically, when installing the heat shield 401 and the exhaust pipe, firstly, the mounting plate 2 is mounted on the chassis of the car through the mounting hole 3, and the bidirectional screw rod 404 is rotated by rotating the hand-tightening block 405, so that the ball nuts 402 at both ends of the bidirectional screw rod 404 can drive the two heat shields 401 to move toward each other under the action of the thread, and the two heat shields 401 are expanded and opened, and then the heat shield 401 is buckled on the exhaust pipe so that the exhaust pipe is placed between the two arc-shaped clamping plates 407, and then the hand-tightening block is rotated in the opposite direction. The block 405 makes the distance between the two heat shields 401 smaller and as close to each other as possible, and then the arc clamping plate 407 is moved under the action of the thread by rotating the hand screw 408. The two arc clamping plates 407 can clamp and fix exhaust pipes of different diameters. After the exhaust pipe is fixed, the fastening bolts 414 are correspondingly inserted into the fixing holes 413 on the fixing plates 412 at the bottom of the arc clamping plates 407, and the nuts 415 are used to fasten the two heat shields 401, so as to complete the rapid installation of the exhaust pipe heat shield;

[0024] When the exhaust pipe is working, the heat shield 401 can play a role of heat insulation and protection, protecting the automobile chassis and nearby components, while also reducing the impact on the environment. When the automobile is driving, air circulates in the heat dissipation slots 411 on the heat shield 401, thereby taking away the heat in the heat shield 401, achieving the purpose of cooling and dissipating the heat inside the heat shield 401, and effectively improving the heat insulation effect of the heat shield 401.

[0025] See also Figure 4 , it is further obtained that the protective mechanism 5 includes a fixed cylinder 502, a sliding block 503 is slidably connected in the fixed cylinder 502, a sliding rod 504 is fixedly arranged at the bottom end of the sliding block 503, a spring 505 is sleeved on the sliding rod 504, the fixed cylinder 502 is fixedly arranged at the bottom end of the mounting plate 2, a connecting plate 501 is fixedly arranged on the insulation board 1, one end of the sliding rod 504 slides through the fixed cylinder 502 and is fixedly connected to the connecting plate 501, and the spring 505 is fixedly arranged between the fixed cylinder 502 and the sliding block 503.

[0026] Specifically, by configuring the fixed cylinder 502, the sliding block 503, the sliding rod 504 and the spring 505, when resonance occurs between the automobile and the exhaust pipe, the sliding rod 504 can drive the sliding block 503 to slide in the fixed cylinder 502. Under the elastic potential energy of the spring 505 and the damping in the fixed cylinder 502, the vibration force of the exhaust pipe and the heat insulation cover 401 can be fully absorbed, thereby preventing the heat insulation cover 401 from loosening or even falling off, which would affect the heat insulation effect and driving safety.

[0027] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art 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 appended claims and their equivalents.

Claims

1. An exhaust pipe heat shield fixing structure, comprising a heat shield (1), a mounting plate (2) and a mounting hole (3) opened on the mounting plate (2), characterized in that: The bottom end of the heat insulation board (1) is provided with a fixing mechanism (4), and the upper end of the heat insulation board (1) is provided with a protection mechanism (5); The fixing mechanism (4) comprises a heat insulation cover (401) and an arc-shaped clamping plate (407); a groove is provided at the bottom end of the heat insulation plate (1); a bidirectional screw rod (404) is rotatably connected in the groove; both ends of the bidirectional screw rod (404) are threadedly connected with ball nuts (402); the ball nuts (402) are fixedly connected to the heat insulation cover (401); one end of the arc-shaped clamping plate (407) is rotatably connected with a hand screw rod (408); a screw hole is provided on the heat insulation cover (401); the hand screw rod (408) is threadedly connected to the screw hole; The protection mechanism (5) comprises a fixed cylinder (502), a sliding block (503) is slidably connected inside the fixed cylinder (502), a sliding rod (504) is fixedly arranged at the bottom end of the sliding block (503), and a spring (505) is sleeved on the sliding rod (504).

2. The exhaust pipe heat shield fixing structure according to claim 1, characterized in that: A moving block (403) is fixedly arranged on the heat insulation cover (401), a limiting rod (406) is fixedly arranged on the inner wall of the groove, the moving block (403) is slidably connected to the limiting rod (406), and one end of the bidirectional screw rod (404) rotatably passes through the groove and is fixedly connected to a hand-tightening block (405).

3. The exhaust pipe heat shield fixing structure according to claim 1, characterized in that: Guide rods (409) are fixedly arranged at both ends of the arc-shaped clamping plate (407) with the hand-tightened screw rod (408) as the center. One end of the guide rod (409) slides through the heat insulation cover (401) and is fixedly provided with a limit block (410).

4. The exhaust pipe heat shield fixing structure according to claim 1, characterized in that: A fixing plate (412) is fixedly provided at the bottom end of the heat insulation cover (401), a fixing hole (413) is opened on the fixing plate (412), a fastening bolt (414) is inserted into the fixing hole (413), and a nut (415) is threadedly connected to one end of the fastening bolt (414).

5. The exhaust pipe heat shield fixing structure according to claim 1, characterized in that: Both ends of the heat insulation cover (401) are provided with heat dissipation grooves (411), and the heat dissipation grooves (411) at the two ends are connected.

6. The exhaust pipe heat shield fixing structure according to claim 1, characterized in that: The fixed cylinder (502) is fixedly arranged at the bottom end of the mounting plate (2); a connecting plate (501) is fixedly arranged on the heat insulation plate (1); one end of the sliding rod (504) slides through the fixed cylinder (502) and is fixedly connected to the connecting plate (501); and the spring (505) is fixedly arranged between the fixed cylinder (502) and the sliding block (503).

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