High-temperature exhaust pipe heat insulation protective cover
The exhaust pipe protective cover, with its arc-shaped structure and composite inner and outer stainless steel foil and fiberglass layers, solves the problems of installation conflicts and high-temperature convection, thus extending the service life of the exhaust pipe.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG XINYANG MASCH CO LTD
- Filing Date
- 2025-06-21
- Publication Date
- 2026-06-16
AI Technical Summary
Existing exhaust pipe protective covers are prone to conflict with support lugs or brackets during installation, and they also obstruct the convection of high-temperature air, affecting the lifespan of the exhaust pipe.
The main body of the protective cover features an arc structure, with inner and outer stainless steel foil layers and fiberglass layers. It is clamped to the exhaust pipe by a locking assembly and adopts a semi-enclosed design to facilitate installation and promote air convection.
It enables convenient installation without conflicting with support lugs or brackets, extends the service life of the exhaust pipe, and reduces temperature.
Smart Images

Figure CN224364016U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a high-temperature heat insulation protective cover for exhaust pipes, belonging to the field of heat insulation and protection technology. Background Technology
[0002] When agricultural diesel machinery is running, the temperature of its exhaust pipe can reach 500-600℃, continuously radiating a large amount of heat into the surrounding area. When the machinery is working in the field, the exhaust pipe is very close to the crops. This high-temperature radiation accelerates the evaporation of water from the crop leaves and stems, leading to localized dehydration, wilting, and even drying out. Therefore, a protective cover needs to be installed on the exhaust pipe to provide protection.
[0003] Currently, heat insulation covers are typically installed on the outside of the exhaust pipe in a wrap-around manner, with a tight fit, such as the novel exhaust pipe heat insulation cover disclosed in CN201620340303.2. However, practical experience has shown that this fully wrapped protective cover structure still has the following technical problems:
[0004] 1. Exhaust pipes are usually fixed with support lugs or brackets. Full-coverage protective covers may conflict with the support lugs or brackets during installation. This problem is quite common in agricultural machinery, especially in cases where space is limited or protective covers are added later.
[0005] 2. A fully enclosed protective cover will hinder the convection of hot air between the exhaust pipe and the outside air, causing the exhaust pipe to remain at a high temperature, which will affect the service life of the exhaust pipe.
[0006] In conclusion, the existing technology obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content
[0007] This utility model addresses the shortcomings of the prior art by providing a high-temperature heat insulation protective cover for exhaust pipes. It can be used in situations where space is limited or where it is added later. It is easy to install and will not conflict with the support lugs or brackets during installation. It can also prevent the exhaust pipe from being kept at a high temperature, thus extending the service life of the exhaust pipe.
[0008] To solve the above technical problems, the present invention adopts the following technical solution:
[0009] A high-temperature heat insulation protective cover for an exhaust pipe includes an arc-shaped protective cover body that is fastened to the bottom of the exhaust pipe. At least two locking components are installed inside the protective cover body and clamp onto the exhaust pipe. The protective cover body includes a frame, with an outer stainless steel foil layer fixed to the outside of the frame and an inner stainless steel foil layer fixed to the inside of the frame. A glass fiber layer is filled between the inner and outer stainless steel foil layers.
[0010] Furthermore, the outer stainless steel foil layer is welded and fixedly connected to the outer wall of the frame, and the outer end face of the outer stainless steel foil layer is flush with the outer end face of the frame.
[0011] Furthermore, the inner stainless steel foil layer is welded and fixedly connected to the inner wall of the skeleton, and the outer end face of the inner stainless steel foil layer is flush with the outer end face of the skeleton.
[0012] Furthermore, the skeleton has an overall ring structure, and the skeleton includes an end skeleton and a middle skeleton.
[0013] Furthermore, the end frames are U-shaped and located at both ends of the length of the middle frame; the middle frame is a straight line structure, and there are two middle frames arranged side by side.
[0014] Furthermore, the connection between the end frame and the middle frame is rounded.
[0015] Furthermore, the end frame is internally fixed with two pairs of support seats.
[0016] Furthermore, the locking assembly includes a stainless steel hoop, with two paired connecting seats fixedly connected to the bottom of the stainless steel hoop, and the connecting seats are fixedly connected to the support seats inside the end frame.
[0017] Furthermore, the stainless steel hoop has an open end, and a latch is installed at the open end to tighten and lock the stainless steel hoop.
[0018] Compared with the prior art, the present invention, by adopting the above technical solution, has the following advantages:
[0019] In this utility model, the main body of the protective cover is fastened to the bottom of the exhaust pipe. The main body of the protective cover is composed of an inner stainless steel foil layer, an outer stainless steel foil layer, and a glass fiber layer between the two, which serves the function of heat insulation and protection.
[0020] The protective cover body of this utility model is clamped onto the exhaust pipe by a locking component, making installation convenient and avoiding conflict with the support lugs or brackets during installation.
[0021] The protective cover in this invention adopts a semi-enclosed structure, which is conducive to the convection of high-temperature air between the exhaust pipe and the outside air, preventing the exhaust pipe from being at a high temperature all the time and extending the service life of the exhaust pipe.
[0022] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. Attached Figure Description
[0023] Figure 1 This is a three-dimensional structural view of the present invention;
[0024] Figure 2 This is a side view of the structure of this utility model;
[0025] Figure 3 This is a cross-sectional schematic diagram of the main body of the protective cover;
[0026] Figure 4 This is a schematic diagram showing the connection between the frame and the locking assembly.
[0027] In the figure, 1-protective cover body, 11-frame, 111-end frame, 112-middle frame, 113-support base, 12-fiberglass layer, 13-inner stainless steel foil layer, 14-outer stainless steel foil layer; 2-locking assembly, 21-stainless steel hoop, 22-connecting seat, 23-locking buckle. Detailed Implementation
[0028] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described with reference to the accompanying drawings.
[0029] like Figures 1-4 As shown in the figure, the present invention provides a high-temperature heat insulation protective cover for an exhaust pipe, including a protective cover body 1 with an arc-shaped structure. The protective cover body 1 is fastened to the bottom of the exhaust pipe. At least two locking components 2 are installed inside the protective cover body 1 and are clamped to the exhaust pipe.
[0030] The protective cover body 1 includes a frame 11, an outer stainless steel foil layer 14 is fixed to the outside of the frame 11, an inner stainless steel foil layer 13 is fixed to the inside of the frame 11, and a glass fiber layer 12 is filled between the inner stainless steel foil layer 13 and the outer stainless steel foil layer 14.
[0031] The outer stainless steel foil layer 14 is welded and fixedly connected to the outer wall of the frame 11, and the outer end face of the outer stainless steel foil layer 14 is flush with the outer end face of the frame 11.
[0032] The inner stainless steel foil layer 13 is welded and fixedly connected to the inner wall of the frame 11, and the outer end face of the inner stainless steel foil layer 13 is flush with the outer end face of the frame 11.
[0033] The skeleton 11 has an overall ring structure and includes an end skeleton 111 and a middle skeleton 112. The end skeleton 111 has a U-shaped structure and is located at both ends of the length direction of the middle skeleton 112. The middle skeleton 112 has a straight structure and there are two middle skeletons 112 arranged side by side.
[0034] The connection between the end frame 111 and the middle frame 112 is a smooth transition.
[0035] The end frame 111 is internally fixed with two pairs of support seats 113.
[0036] The locking assembly 2 includes a stainless steel hoop 21, and two pairs of connecting seats 22 are fixedly connected to the bottom of the stainless steel hoop 21. The connecting seats 22 are fixedly connected to the support seat 113 inside the end frame 111.
[0037] The stainless steel hoop 21 has an open end, and a latch 23 is installed at the open end to tighten and lock the stainless steel hoop 21. The latch 23 tightens the stainless steel hoop 21 onto the exhaust pipe.
[0038] The specific working principle of this utility model is as follows:
[0039] The protective cover body 1 of this utility model is fastened to the bottom of the exhaust pipe. The protective cover body 1 is composed of an inner stainless steel foil layer 13, an outer stainless steel foil layer 14 and a glass fiber layer 12 between the two. It can block the direct transfer of heat from the exhaust pipe to the crops below, and play a role in heat insulation and protection.
[0040] The protective cover body 1 of this utility model adopts a semi-enclosed structure, which is conducive to the convection of high-temperature air between the exhaust pipe and the protective cover body 1 and the outside air, avoiding the exhaust pipe from being at a high temperature all the time and extending the service life of the exhaust pipe.
[0041] The protective cover body 1 of this utility model is clamped onto the exhaust pipe by the locking component 2, which is convenient to install. During installation, it is only necessary to turn the locking buckle 23 to make the stainless steel hoop 21 shrink onto the exhaust pipe in the circumferential direction.
[0042] The above description provides examples of the preferred embodiments of this utility model. Any aspects not detailed herein are common knowledge to those skilled in the art. The scope of protection of this utility model is determined by the claims. Any equivalent modifications based on the technical teachings of this utility model are also within the scope of protection of this utility model.
Claims
1. A high-temperature heat insulation protective cover for exhaust pipes, characterized in that: The protective cover body (1) includes an arc-shaped structure. The protective cover body (1) is fastened to the bottom of the exhaust pipe. At least two locking components (2) are installed inside the protective cover body (1). The locking components (2) are clamped to the exhaust pipe. The protective cover body (1) includes a frame (11). An outer stainless steel foil layer (14) is fixed to the outside of the frame (11). An inner stainless steel foil layer (13) is fixed to the inside of the frame (11). A glass fiber layer (12) is filled between the inner stainless steel foil layer (13) and the outer stainless steel foil layer (14).
2. The high-temperature heat insulation protective cover for exhaust pipes as described in claim 1, characterized in that: The outer stainless steel foil layer (14) is welded and fixed to the outer wall of the frame (11), and the outer end face of the outer stainless steel foil layer (14) is flush with the outer end face of the frame (11).
3. The high-temperature heat insulation protective cover for exhaust pipes as described in claim 1, characterized in that: The inner stainless steel foil layer (13) is welded and fixed to the inner wall of the frame (11), and the outer end face of the inner stainless steel foil layer (13) is flush with the outer end face of the frame (11).
4. The high-temperature heat insulation protective cover for exhaust pipes as described in claim 1, characterized in that: The skeleton (11) is in the form of a ring structure, and the skeleton (11) includes an end skeleton (111) and a middle skeleton (112).
5. A high-temperature heat insulation protective cover for an exhaust pipe as described in claim 4, characterized in that: The end frame (111) has a U-shaped structure and is located at both ends of the length of the middle frame (112); the middle frame (112) has a straight structure and there are two middle frames (112) arranged side by side.
6. The high-temperature heat insulation protective cover for exhaust pipes as described in claim 5, characterized in that: The connection between the end frame (111) and the middle frame (112) is a smooth transition.
7. A high-temperature heat insulation protective cover for an exhaust pipe as described in claim 6, characterized in that: The end frame (111) is internally fixed with two pairs of support seats (113).
8. A high-temperature heat insulation protective cover for an exhaust pipe as described in claim 7, characterized in that: The locking assembly (2) includes a stainless steel hoop (21), and two pairs of connecting seats (22) are fixedly connected to the bottom of the stainless steel hoop (21). The connecting seats (22) are fixedly connected to the support seat (113) inside the end frame (111).
9. A high-temperature heat insulation protective cover for an exhaust pipe as described in claim 8, characterized in that: The stainless steel hoop (21) has an open end, and a latch (23) is installed at the open end to tighten and lock the stainless steel hoop (21).