Heat insulation device for exhaust passage of internal combustion engine

Abstract

The utility model relates to the technical field of heat insulation devices, and discloses an internal combustion engine exhaust duct heat insulation device which comprises a heat insulation assembly and an installation assembly, the heat insulation assembly comprises an exhaust duct, a heat insulation sleeve, a shell and a transverse plate, and the heat insulation sleeve is arranged on the surface of the exhaust duct; the mounting assemblies are arranged on the two sides of the shell and comprise vertical rods, protective shells, fixing pieces, pushing pieces and damping pieces, the vertical rods are fixed to the top of the transverse plate, the protective shells are fixed to the tops of the two sides of the shell, the fixing pieces are arranged in the protective shells, and the pushing pieces are arranged on the tops of inner cavities of the protective shells. The exhaust pipe has the advantages that heat of the exhaust pipe can be isolated through the heat insulation sleeve, surrounding parts are prevented from being affected, the heat insulation sleeve can be conveniently installed through the shell fixing piece, follow-up installation work is facilitated, the shell can be pushed to move through the pushing piece, and follow-up disassembly work is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of heat insulation devices, in particular to a heat insulation device for an exhaust passage of an internal combustion engine. Background Art

[0002] The exhaust duct insulation device of an internal combustion engine is a device used to reduce the temperature of the exhaust system. It is usually made of insulation material and covers or wraps part or all of the components of the exhaust system. The main function of the exhaust duct insulation device is to reduce the conduction and radiation of heat, thereby reducing the temperature in the engine compartment, improving combustion efficiency, and reducing the risk of incineration to the surrounding environment. This device is often used in high-performance internal combustion engines, especially turbocharged engines.

[0003] However, the internal combustion engine exhaust duct heat insulation device in the prior art is usually fixed and installed with screws and nuts, and a variety of tools are needed to assist the installation during installation, which requires more time and effort and affects work efficiency. At the same time, the exhaust pipe will vibrate when exhausting smoke, thereby generating noise and causing interference to personnel and the surrounding environment. In order to solve the above problems, we propose an internal combustion engine exhaust duct heat insulation device. Utility Model Content

[0004] In view of the deficiencies of the prior art, the purpose of the utility model is to provide an internal combustion engine exhaust duct insulation device, which solves the problem that the existing exhaust duct insulation device is inconvenient to install and cannot reduce noise.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a heat insulation device for an exhaust duct of an internal combustion engine, comprising a heat insulation component and a mounting component.

[0006] The heat insulation assembly includes an exhaust pipe, a heat insulation sleeve, an outer shell and a transverse plate, wherein the heat insulation sleeve is arranged on the surface of the exhaust pipe, the outer shell is arranged on the surface of the heat insulation sleeve, and the transverse plate is fixed to the bottom of both sides of the outer shell; and

[0007] The mounting assembly is arranged on both sides of the shell, and includes a vertical rod, a protective shell, a fixing member, a pushing member and a shock absorbing member. The vertical rod is fixed to the top of the horizontal plate, the protective shell is fixed to the top of both sides of the shell, the fixing member is arranged inside the protective shell, the pushing member is arranged at the top of the inner cavity of the protective shell, and the shock absorbing member is arranged inside the shell.

[0008] In a further solution, the fixing member includes a supporting sleeve, a movable plate, a first spring and a fixing rod, the supporting sleeve is fixed on both sides of the inner wall of the protective shell, the movable plate is slidably connected to the inside of the supporting sleeve, the first spring is fixed on one side of the movable plate, and the fixing rod is fixed on the other side of the movable plate.

[0009] In a further solution, the pushing member includes a second spring and a pushing plate, the second spring is fixed to the top of the inner cavity of the protective shell, the pushing plate is slidably connected to the top of the inner cavity of the protective shell, and the top is fixedly connected to the second spring.

[0010] In a further solution, the shock absorbing member includes a fixing plate and a damper, wherein the fixing plate is fixed to the top of the inner cavity of the shell, and the damper is fixed to the bottom of the fixing plate, and the bottom is fixedly connected to the top of the heat insulation sleeve.

[0011] In a further solution, a cross bar is fixedly connected to the front of the fixing rod, and a toggle plate is fixedly connected to one side of the cross bar.

[0012] In a further solution, a sliding groove is provided inside the protective shell, and the cross bar is slidably connected inside the sliding groove.

[0013] According to a further solution, a fixing groove is provided inside the vertical rod, and the fixing rod is movably connected inside the fixing groove.

[0014] The beneficial effects of the utility model are as follows: by setting the heat insulation sleeve, the heat of the exhaust pipe can be isolated to prevent affecting surrounding components; by setting the outer shell fixing part, the heat insulation sleeve can be easily installed to facilitate subsequent installation work; by setting the pushing part, the outer shell can be pushed to move to facilitate subsequent disassembly work; by setting the shock-absorbing part, the noise generated during exhaust can be reduced to prevent affecting the surrounding environment and personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the utility model;

[0016] Figure 2 It is a left side cross-sectional view of the housing of the utility model;

[0017] Figure 3 This is a front cross-sectional view of the protective shell of the utility model;

[0018] Figure 4 For the utility model Figure 3 A is an enlarged view of the middle image.

[0019] Explanation of marks in the figure: 1. Insulation assembly; 101. Exhaust duct; 102. Insulation sleeve; 103. Outer shell; 104. Horizontal plate; 2. Mounting assembly; 201. Vertical rod; 202. Protective shell; 203. Fixing member; 204. Pushing member; 205. Shock absorbing member; 2031. Support sleeve; 2032. Moving plate; 2033. First spring; 2034. Fixing rod; 2041. Second spring; 2042. Pushing plate; 2051. Fixing plate; 2052. Damper. DETAILED DESCRIPTION

[0020] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0021] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0022] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0023] Example 1

[0024] Reference Figure 1-4 , which is the first embodiment of the utility model, and provides an internal combustion engine exhaust duct heat insulation device, including a heat insulation component 1 and a mounting component 2,

[0025] The heat insulation assembly 1 includes an exhaust pipe 101, a heat insulation sleeve 102, a shell 103 and a transverse plate 104. The heat insulation sleeve 102 is arranged on the surface of the exhaust pipe 101, the shell 103 is arranged on the surface of the heat insulation sleeve 102, and the transverse plate 104 is fixed to the bottom of both sides of the shell 103; and

[0026] The mounting assembly 2 is arranged on both sides of the outer shell 103, and includes a vertical rod 201, a protective shell 202, a fixing member 203, a pushing member 204 and a shock absorbing member 205. The vertical rod 201 is fixed to the top of the horizontal plate 104, the protective shell 202 is fixed to the tops of both sides of the outer shell 103, the fixing member 203 is arranged inside the protective shell 202, the pushing member 204 is arranged at the top of the inner cavity of the protective shell 202, and the shock absorbing member 205 is arranged inside the outer shell 103.

[0027] Specifically: the material of the thermal insulation sleeve 102 is ceramic fiber, which can withstand vibration and impact in a high temperature environment, and also has excellent thermal insulation and corrosion resistance. The shell 103 can fix and limit the thermal insulation sleeve 102. Through the setting of the fixing part 203, the thermal insulation sleeve 102 can be easily installed, which increases the convenience during use. Through the setting of the shock-absorbing part 205, the noise generated during smoke exhaust can be reduced, which increases the practicality during use.

[0028] The fixing member 203 includes a supporting sleeve 2031, a movable plate 2032, a first spring 2033 and a fixing rod 2034. The supporting sleeve 2031 is fixed to both sides of the inner wall of the protective shell 202. The movable plate 2032 is slidably connected to the inside of the supporting sleeve 2031. The first spring 2033 is fixed to one side of the movable plate 2032. The fixing rod 2034 is fixed to the other side of the movable plate 2032. The pushing member 204 includes a second spring 2041 and a pushing plate 2042. The second spring 2041 is fixed to the top of the inner cavity of the protective shell 202. The pushing plate 2042 is slidably connected to the top of the inner cavity of the protective shell 202, and the top is fixedly connected to the second spring 2041.

[0029] Specifically: there are two support sleeves 2031, both fixed on both sides of the inner wall of the protective shell 202, there are two movable plates 2032, both slidably connected to the inside of the support sleeves 2031, there are two first springs 2033, both fixed on one side of the movable plate 2032, which can push the fixed rod 2034 to move, there are two second springs 2041, both fixed on the top of the inner cavity of the protective shell 202, and by setting the push plate 2042, the outer shell 103 can be pushed out, which is convenient for subsequent disassembly work.

[0030] Example 2

[0031] Reference Figure 1-4 , which is the second embodiment of the utility model, and this embodiment is based on the previous embodiment.

[0032] The shock absorber 205 includes a fixed plate 2051 and a damper 2052. The fixed plate 2051 is fixed to the top of the inner cavity of the shell 103, and the damper 2052 is fixed to the bottom of the fixed plate 2051, and the bottom is fixedly connected to the top of the insulation sleeve 102. The front of the fixed rod 2034 is fixedly connected to a cross bar, and one side of the cross bar is fixedly connected to a toggle plate. A sliding groove is opened inside the protective shell 202, and the cross bar is slidably connected to the inside of the sliding groove. A fixed groove is opened inside the vertical rod 201, and the fixed rod 2034 is movably connected to the inside of the fixed groove.

[0033] Specifically: there are eight dampers 2052, which are symmetrically fixed at the top and bottom of the inner cavity of the shell 103. The damper 2052 can reduce the noise generated during exhaust. Through the setting of the toggle plate, the fixing rod 2034 can be driven to move, which is convenient for subsequent disassembly work. Through the setting of the fixing groove, the subsequent fixing work can be facilitated, which increases the practicality during use.

[0034] The working principle of the utility model is: when it is necessary to install the heat insulation sleeve 102, the heat insulation sleeve 102 is sleeved on the surface of the exhaust pipe 101, and the outer shell 103 is combined together, and the vertical rod 201 is inserted into the protective shell 202, the vertical rod 201 pushes the fixed rod 2034 to move, the fixed rod 2034 pushes the movable plate 2032 to move, and the movable plate 2032 squeezes the first spring 2033. When encountering the fixed groove, the first spring 2033 pushes the movable plate 2032 to move through its own elasticity, the movable plate 2032 pushes the fixed rod 2034 to move, and the fixed rod 2034 is inserted into the fixed groove, so as to achieve the purpose of installing the heat insulation sleeve 102. When it is necessary to reduce the noise generated during exhaust, the vibration is transmitted to the damper 2052 through the heat insulation sleeve 102, and the damper 2052 is forced to shrink and rebound through its own elasticity, so as to achieve the purpose of reducing noise.

[0035] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. An internal combustion engine exhaust duct insulation device, characterized in that: It comprises a heat insulation component (1) and a mounting component (2), The heat insulation component (1) comprises an exhaust pipe (101), a heat insulation sleeve (102), an outer shell (103) and a transverse plate (104); the heat insulation sleeve (102) is arranged on the surface of the exhaust pipe (101); the outer shell (103) is arranged on the surface of the heat insulation sleeve (102); and the transverse plate (104) is fixed to the bottom of both sides of the outer shell (103); as well as The mounting assembly (2) is arranged on both sides of the housing (103), and comprises a vertical rod (201), a protective shell (202), a fixing member (203), a pushing member (204) and a shock absorbing member (205); the vertical rod (201) is fixed to the top of the horizontal plate (104); the protective shell (202) is fixed to the tops of both sides of the housing (103); the fixing member (203) is arranged inside the protective shell (202); the pushing member (204) is arranged at the top of the inner cavity of the protective shell (202); the shock absorbing member (205) is arranged inside the housing (103); the fixing member (203) comprises a supporting sleeve (2031), a movable plate (2032), and a first spring (2033). and a fixing rod (2034), the support sleeve (2031) is fixed to both sides of the inner wall of the protective shell (202), the movable plate (2032) is slidably connected to the inside of the support sleeve (2031), the first spring (2033) is fixed to one side of the movable plate (2032), the fixing rod (2034) is fixed to the other side of the movable plate (2032), the pushing member (204) comprises a second spring (2041) and a pushing plate (2042), the second spring (2041) is fixed to the top of the inner cavity of the protective shell (202), the pushing plate (2042) is slidably connected to the top of the inner cavity of the protective shell (202), and the top is fixedly connected to the second spring (2041).

2. The internal combustion engine exhaust duct heat insulation device according to claim 1, characterized in that: The shock absorbing member (205) comprises a fixing plate (2051) and a damper (2052), wherein the fixing plate (2051) is fixed to the top of the inner cavity of the outer shell (103), and the damper (2052) is fixed to the bottom of the fixing plate (2051), and the bottom is fixedly connected to the top of the heat insulation sleeve (102).

3. The internal combustion engine exhaust duct heat insulation device according to claim 2, characterized in that: The front side of the fixed rod (2034) is fixedly connected to a cross bar, and one side of the cross bar is fixedly connected to a toggle plate.

4. The internal combustion engine exhaust duct heat insulation device according to claim 1, characterized in that: A sliding groove is provided inside the protective shell (202), and the cross bar is slidably connected inside the sliding groove.

5. The internal combustion engine exhaust duct heat insulation device according to claim 2, characterized in that: A fixing groove is provided inside the vertical rod (201), and the fixing rod (2034) is movably connected inside the fixing groove.

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