Exhaust pipeline heat insulation device

Abstract

An exhaust pipeline heat insulation device comprises a heat insulation plate, the heat insulation plate is connected to the inner side of a frame longitudinal beam in a buckled mode, the heat insulation plate comprises an upper flanging and a lower flanging, the exhaust pipeline heat insulation device further comprises a spring buckle, the spring buckle comprises an arched elastic part, the elastic part is bent towards the heat insulation plate and is tightly attached to the outer side of the frame longitudinal beam, and the two ends of the elastic part are each fixedly connected with a connecting part. The connecting portion is perpendicular to the elastic portion, the end of the connecting portion is fixedly provided with a hook, the upper flanging and the lower flanging are provided with connecting holes, the hook is detachably connected with the connecting holes, the matching mode of the hook and the connecting holes facilitates detachable connection of the spring buckle and the heat insulation plate, the elastic portion is arranged on the spring buckle, structures such as fastening bolts do not need to be used, and the heat insulation plate is convenient to disassemble and assemble. In the installation process, only the spring buckles need to be arranged on the frame longitudinal beam in a sleeving mode and connected with the connecting holes in the heat insulation plate, use is convenient, operation is easy, and the installation efficiency is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of exhaust pipe heat insulation, in particular to an exhaust pipe heat insulation device. Background Art

[0002] At present, the exhaust pipes of most truck models pass through the frame from top to bottom and are relatively close to the frame. There are many pipe harnesses distributed on the inside of the frame, including important harnesses such as chassis wires and brake air pipes. Since the engine exhaust butterfly valve or exhaust pipe is too close to the pipe harness, and the temperature of the engine exhaust butterfly valve and exhaust pipe is very high, there is a risk of the pipe harnesses close to them being burned out. In order to prevent the pipe harnesses from being burned out, a heat insulation device is generally installed between the pipe harness and the exhaust pipe.

[0003] The existing exhaust pipe insulation device usually uses an insulation board to isolate the pipe bundle from the exhaust pipe (such as publication number CN206495711U). The insulation board is placed on the frame longitudinal beam, and the insulation board is provided with an upper flange and a lower flange. The insulation board is connected to the frame longitudinal beam through the upper flange and the lower flange to ensure the installation stability of the insulation board, and the insulation board is fixedly installed on the frame longitudinal beam by a hoop or a fastening belt.

[0004] The heat insulation board is fixed by a hoop or a fastening belt, which needs to be used in conjunction with fastening bolts. At this time, it is necessary to fix nuts and other connecting structures on the frame longitudinal beam or hoop and other structures. The installation process is complicated, and due to the complex side structure of the chassis, the installation space is narrow, the assembly is difficult, and the assembly efficiency is low. In addition, the heat insulation board is composed of only a single layer of steel plate, and the overall heat insulation effect is not good. Utility Model Content

[0005] In order to solve the technical problems of the complicated installation process and inconvenient use of the existing exhaust pipe insulation device in the above background technology, the utility model provides an exhaust pipe insulation device.

[0006] The technical solution of this utility model is as follows:

[0007] The utility model provides an exhaust pipe heat insulation device, comprising a heat insulation board, which is buckled on the inner side of a frame longitudinal beam, the heat insulation board comprises an upper flange and a lower flange, and also comprises a spring clip, the spring clip comprises an arched elastic part, the elastic part is bent toward the heat insulation board and fits tightly with the outer side of the frame longitudinal beam, the two ends of the elastic part are respectively fixedly connected with a connecting part, the connecting part is perpendicular to the elastic part, the end of the connecting part is fixedly provided with a hook, the upper flange and the lower flange are provided with a connecting hole, the hook and the connecting hole are detachably connected, and the matching mode of the hook and the connecting hole facilitates the detachable connection of the spring clip and the heat insulation board, and the setting of the elastic part on the spring clip eliminates the need to use structures such as fastening bolts, and during the installation process, the spring clip only needs to be sleeved on the frame longitudinal beam and connected to the connecting hole on the heat insulation board, which is convenient to use and simple to operate, and effectively improves the installation efficiency.

[0008] Preferably, the connection holes are arranged at intervals along the length direction of the upper flange and the lower flange to facilitate simultaneous connection of several spring clips, thereby improving the installation stability of the insulation board.

[0009] Preferably, at least one spring clip is provided to improve the installation stability of the heat insulation board.

[0010] Preferably, the heat insulation board comprises a heat insulation body, an insulation layer is fixedly provided on the inner side of the heat insulation body, and the insulation layer plays the role of isolating heat and providing fixed support.

[0011] Preferably, the heat insulation body and the heat insulation layer are both plate-like structures to facilitate heat isolation.

[0012] Preferably, thermal insulation cotton is fixed on the thermal insulation layer, which can isolate the heat emitted by the engine exhaust butterfly valve and the exhaust pipe. The three-layer thermal insulation structure greatly improves the thermal insulation performance, and can also reduce the collision and wear of the thermal insulation board on the chassis line, brake air pipe and other pipe harnesses during the bumpy operation of the vehicle, thereby increasing the service life of the pipe harness.

[0013] Preferably, the thermal insulation cotton has a porous structure, so that many small spaces for accumulating air are formed in the thermal insulation cotton, which effectively reduces the conduction of heat, reduces the overall thermal conductivity of the thermal insulation cotton, and improves the thermal insulation capacity of the thermal insulation cotton.

[0014] Preferably, a heat insulating layer is fixedly provided on the outer side of the heat insulating body to further improve the overall heat insulating capacity of the heat insulating device.

[0015] Preferably, a plurality of protrusions are evenly and fixedly provided on the inner side of the heat insulation board, and the heat insulation layer is fixedly provided on the protrusions. Under the action of the protrusions, air flow space is formed between the heat insulation layer and the heat insulation board to facilitate heat dissipation.

[0016] Preferably, the area of ​​the heat-insulating layer is the same as the area of ​​the heat-insulating body, thereby ensuring the heat-insulating auxiliary effect of the heat-insulating layer on the heat-insulating body.

[0017] It can be seen from the above technical solutions that the advantages of the utility model are:

[0018] 1. The spring clip is connected to the connection holes on the flange and the lower flange of the heat insulation board through a hook, which facilitates the detachable connection between the spring clip and the heat insulation board. The setting of the elastic part on the spring clip eliminates the need to use structures such as fastening bolts. During the installation process, the spring clip only needs to be set on the frame longitudinal beam and connected to the connection hole on the heat insulation board. It is easy to use and simple to operate, which effectively improves the installation efficiency.

[0019] 2. The insulation board is provided with an insulation layer and insulation cotton, which can isolate the heat emitted by the engine exhaust butterfly valve and the exhaust pipe. The three-layer insulation structure greatly improves the insulation performance. The setting of the insulation cotton can also reduce the collision and wear of the insulation board on the chassis line, brake air pipe and other pipe harnesses during the bumpy operation of the vehicle, thereby increasing the service life of the pipe harness. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solution of the utility model, the drawings required for use in the description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a schematic diagram of the overall structure of the exhaust pipe heat insulation device according to one or more embodiments of the utility model when it is installed and used;

[0022] Figure 2 It is a side view structural schematic diagram of the exhaust pipe heat insulation device in the installed and used state according to one or more embodiments of the utility model;

[0023] The components represented by the reference numerals in the figure are:

[0024] 1. Frame longitudinal beam; 2. Heat insulation board; 21. Upper flange; 22. Lower flange; 3. Spring buckle; 31. Hook; 32. Elastic part; 4. Heat insulation layer; 5. Heat insulation cotton; 6. Connection hole. DETAILED DESCRIPTION

[0025] In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, the technical scheme of the utility model will be clearly and completely described below in combination with the drawings in the specific embodiment. Obviously, the embodiments described below are only part of the embodiments of the utility model, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this patent.

[0026] In a typical implementation of the present invention, Figure 1-Figure 2 As shown, an exhaust pipe heat insulation device is proposed, including: a heat insulation board 2 and a spring clip 3, and the heat insulation board 2 is fixedly installed to the inner side of the frame longitudinal beam 1 through the spring clip 3.

[0027] Specifically, the heat insulation board 2 includes a heat insulation body, which is a plate-shaped structure. An upper flange 21 is fixedly provided on the upper side of the heat insulation body, and a lower flange 22 is fixedly provided on the lower side of the heat insulation body, so that the heat insulation board 2 can be buckled on the frame longitudinal beam 1 through the upper flange 21 and the lower flange 22.

[0028] It is understandable that the upper flange 21 and the lower flange 22 can be fixedly connected to the heat insulation body by welding or integral molding, and the specific fixing method is not limited too much here.

[0029] like Figure 1 As shown, a plurality of connection holes 6 are provided on the upper flange 21 and the lower flange 22 at intervals along the length direction thereof. The connection holes 6 are through-hole structures for detachable connection between the heat insulation board 2 and the spring buckle 3 .

[0030] like Figure 2 As shown, the spring clip 3 includes an elastic portion 32 and a connecting portion. The elastic portion 32 is arched, specifically, the elastic portion 32 is bent toward the direction close to the insulation board 2. The upper and lower ends of the elastic portion 32 are respectively fixedly connected with a connecting portion, and the connecting portion is perpendicular to the elastic portion 32. A hook 31 is fixedly provided at the end of the connecting portion, so that it is connected to the connecting holes 6 on the upper and lower flanges of the insulation board 2 through the hook 31.

[0031] In practical applications, the heat insulation board 2 is buckled on the inner side of the frame longitudinal beam 1, and is connected to the hook 31 of the spring clip 3 by utilizing the connection holes 6 on the upper flange 21 and the lower flange 22. The elastic portion 32 of the spring clip 3 fits tightly with the outer side of the frame longitudinal beam 1 under the action of its own elastic force, so that the heat insulation board 2 is tightened by utilizing the connection portion, thereby achieving fixed installation of the heat insulation board 2 on the inner side of the frame longitudinal beam 1.

[0032] The matching mode of the bent hook 31 and the connecting hole 6 facilitates the detachable connection between the spring clip 3 and the heat insulation board 2, and the setting of the elastic part 32 on the spring clip 3 eliminates the need to use structures such as fastening bolts. During the installation process, the spring clip 3 only needs to be sleeved on the frame longitudinal beam 1 and connected to the connecting hole 6 on the heat insulation board 2. It is easy to use and simple to operate, which effectively improves the installation efficiency.

[0033] The spring buckle 3 is made of elastic materials such as steel bars and spring steel, so that the elastic part 32 is elastic. When in use, the elastic part 32 can be pulled and automatically reset, which is easy to operate and can adapt to frame longitudinal beams 1 of different specifications, and has strong overall adaptability.

[0034] In this embodiment, one spring buckle 3 is used. In other embodiments, multiple spring buckles 3 may be used. The specific number of spring buckles 3 used can be determined according to actual needs, and no excessive restrictions are made here.

[0035] An insulation layer 4 is fixedly provided on the inner side of the insulation body (i.e., the side of the insulation body close to the frame longitudinal beam 1). The insulation layer 4 is also a plate-like structure, and the area of ​​the insulation layer 4 is the same as the area of ​​the insulation body of the insulation board 2, which plays the role of isolating heat and fixed support. Insulation cotton 5 is fixedly provided on the insulation layer 4. The insulation cotton 5 is a porous structure with the characteristics of discrete pores, which can isolate the heat emitted from the engine exhaust butterfly valve and the exhaust pipe. The three-layer insulation structure greatly improves the insulation performance.

[0036] In actual use, the inner side of the thermal insulation cotton 5 and the frame longitudinal beam 1 has a space for installing chassis wires, brake air pipes and other pipe harnesses. While the thermal insulation cotton 5 plays a heat insulation role, it can also reduce the collision and wear of the thermal insulation board 2 on the chassis wires, brake air pipes and other pipe harnesses during the bumpy operation of the vehicle, thereby increasing the service life of the pipe harness.

[0037] In other embodiments, an insulation layer 4 may also be fixedly provided on the outside of the insulation body to further improve its insulation capacity. The setting of the insulation layer 4 on the outside of the insulation board 2 may be determined according to actual design requirements. For example, when a better insulation effect is needed, the insulation layer 4 is provided on the outside of the insulation board 2; when it is necessary to save costs and overall quality, the insulation layer 4 may not be provided on the outside of the insulation board 2.

[0038] like Figure 1 As shown, a number of protrusions are evenly fixed on the inner side of the insulation board 2. The protrusions serve as welding points, and the insulation layer 4 is welded and fixed to the protrusions. Under the action of the protrusions, air flow space is formed between the insulation layer 4 and the insulation board 2 to facilitate heat dissipation.

[0039] It is understandable that the number and position of the protrusions can be determined according to actual design requirements, and no excessive restrictions are imposed here.

[0040] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An exhaust pipe insulation device, comprising: A heat insulation board (2), the heat insulation board (2) is buckled on the inner side of the frame longitudinal beam (1), the heat insulation board (2) comprises an upper flange (21) and a lower flange (22), and is characterized in that it also comprises a spring buckle (3), the spring buckle (3) comprises an arched elastic part (32), the elastic part (32) is bent toward the heat insulation board (2) and is tightly fitted with the outer side of the frame longitudinal beam (1), the two ends of the elastic part (32) are respectively fixedly connected with a connecting part, the connecting part is perpendicular to the elastic part (32), and the end of the connecting part is fixedly provided with a hook (31), the upper flange (21) and the lower flange (22) are provided with a connecting hole (6), and the hook (31) and the connecting hole (6) are detachably connected.

2. An exhaust pipe insulation device according to claim 1, characterized in that: The connection holes (6) are arranged at intervals along the length direction of the upper flange (21) and the lower flange (22).

3. The exhaust pipe insulation device according to claim 2, characterized in that: The spring buckle (3) is provided with at least one.

4. The exhaust pipe insulation device according to claim 1, characterized in that: The heat insulation board (2) comprises a heat insulation body, and a heat insulation layer (4) is fixedly provided on the inner side of the heat insulation body.

5. The exhaust pipe heat insulation device according to claim 4, characterized in that: The heat insulation body and the heat insulation layer (4) are both plate-shaped structures.

6. The exhaust pipe insulation device according to claim 4, characterized in that: A heat insulation cotton (5) is fixedly arranged on the heat insulation layer (4).

7. The exhaust pipe insulation device according to claim 6, characterized in that: The heat insulating cotton (5) is a porous structure.

8. The exhaust pipe insulation device according to claim 4, characterized in that: A heat insulation layer (4) is fixedly provided on the outer side of the heat insulation body.

9. The exhaust pipe heat insulation device according to claim 4, characterized in that: A plurality of protrusions are evenly and fixedly arranged on the inner side of the heat insulation board (2), and the heat insulation layer (4) is fixedly arranged on the protrusions.

10. The exhaust pipe heat insulation device according to claim 4, characterized in that: The area of ​​the heat insulation layer (4) is the same as the area of ​​the heat insulation body.

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