Exhaust pipe heat insulation sleeve

Abstract

The utility model relates to the technical field of heat insulation of exhaust pipes, in particular to a heat insulation sleeve of an exhaust pipe, which comprises two groups of hoops sleeved at two ends of a straight section of the exhaust pipe. The heat insulation soft cushion covers the exhaust pipe and is positioned between the two groups of hoops; the two ends of the pressing rods are inserted into the opposite side walls of the two hoop sleeves correspondingly, the multiple sets of pressing rods are distributed in the circumferential direction of the annular rail groove at intervals, meanwhile, the pressing rods are pressed on the heat insulation soft cushion, the heat insulation soft cushion wrapped into the barrel-shaped sleeve is pressed on the exhaust pipe, the pressing effect is improved, and meanwhile operation steps are prevented from being cumbersome.

Description

Technical Field

[0001] This utility model relates to the field of exhaust pipe heat insulation technology, specifically to an exhaust pipe heat insulation sleeve. Background Technology

[0002] Engine exhaust pipes produce high-temperature exhaust gases. Heat insulation sleeves effectively reduce the heat emitted from the exhaust pipe, lowering the temperature of surrounding components and preventing performance degradation and damage due to overheating. By reducing the temperature around the exhaust pipe, the heating of the air around the engine is reduced, which helps improve engine combustion efficiency and power output.

[0003] The main body of the heat insulation sleeve is made of a soft sleeve that is resistant to high temperature, heat insulation, flame retardant and corrosion resistant. The main body of the heat insulation sleeve is fixed to the exhaust pipe by clamps or cable ties. In the above scheme, clamps or cable ties are mostly used at both ends of the main body of the heat insulation sleeve. If it is necessary to tightly attach the soft sleeve to the exhaust pipe, multiple sets of clamps or cable ties need to be set along the length of the main body of the heat insulation sleeve.

[0004] In the above solution, the cable ties or clamps need to be removed before the replacement operation can be carried out. This solution modifies the connection method between the clamps and the heat insulation sleeve body to form a new type of exhaust pipe heat insulation sleeve, which can make the replacement operation of the heat insulation sleeve body more convenient. Utility Model Content

[0005] (I) Technical Issues

[0006] The present invention aims to at least solve the problem that the connection method between the hoop and the heat insulation sleeve body needs to be modified in the prior art.

[0007] (II) Technical Content

[0008] This solution provides an exhaust pipe heat insulation sleeve, achieved through the following specific technical means: including...

[0009] There are two sets of clamps, which are fitted onto both ends of the straight section of the exhaust pipe;

[0010] A heat-insulating pad covers the exhaust pipe and is located between the two sets of clamps;

[0011] The pressure rods are inserted into the opposite side walls of two sets of sleeves at their two ends. Multiple sets of pressure rods are distributed circumferentially in the annular track groove, pressing the heat-insulating soft pad wrapped in a cylindrical sleeve onto the exhaust pipe.

[0012] Preferred technical solution 1: The pressure rod is an elastic rod, and a slot is provided at the corresponding position of the opposite side wall of the two sets of sleeves. The two ends of the elastic rod are respectively inserted into the slots that are directly opposite the opposite side wall of the two sets of sleeves.

[0013] Preferred technical solution 2: The pressure rod can be directly installed on the outer wall of the heat insulation pad, that is, the outer wall of the heat insulation pad is formed with rod sleeves at intervals, and a set of pressure rods passes through a set of corresponding rod sleeves and then extends out at both ends.

[0014] Preferred technical solution 3: The pressure bar can also be a rigid bar;

[0015] At this time, an annular track groove is formed inwardly on the opposite sidewalls of the two sets of clamps, and a notch is opened on the outer wall of the track groove. The two ends of the pressure rod enter the annular track groove on the two sets of clamps through the notch and move along the annular track groove to adjust the position of each set of pressure rods.

[0016] Preferred technical solution four: The width of the notch is greater than the diameter of the pressure bar.

[0017] Preferred technical solution five: The clamp is made of heat-insulating material.

[0018] (III) Technical Effects

[0019] The above structure gives this solution the following advantages:

[0020] 1. The replacement frequency of the heat insulation pad is higher than that of the clamp. The clamp no longer needs to be disassembled and reassembled together with the heat insulation pad. When it is necessary to inspect the exhaust pipe (such as the pipe joint), only the heat insulation pad needs to be removed. In many cases, it is no longer necessary to remove the clamp.

[0021] 2. Integrate the pressure bar with the heat-insulating pad to improve the pressing effect and maintain the contact between the heat-insulating pad and the exhaust pipe;

[0022] 3. The length of the heat insulation pad can be set according to the shape of the exhaust pipe. The setting of the pressure bar ensures that even when the heat insulation pad is long, it can still maintain contact with the exhaust pipe. Attached Figure Description

[0023] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0024] Figure 1 This is a schematic diagram of the structure of one embodiment of the present solution;

[0025] Figure 2 This is a schematic diagram of another embodiment of the present solution;

[0026] Figure 3 This is a cross-sectional view of another embodiment of the present solution;

[0027] Figure 4 This is a schematic diagram of the structure of the thermal insulation pad in this solution.

[0028] Among them, 1. Hoop, 11. Half hoop, 12. Slot, 13. Circular track groove, 14. Notch, 2. Heat insulation pad, 21. Rod sleeve, 3. Pressure rod. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0030] Please see Figures 1-3 The exhaust pipe heat insulation sleeve includes a clamp 1, a heat insulation pad 2, and a pressure rod 3, wherein:

[0031] There are two sets of clamps 1 (made of heat-insulating material), which are fitted onto both ends of the straight section of the exhaust pipe; and clamps 1 are composed of two sets of half clamps 11 connected by bolts.

[0032] The heat insulation pad 2 is sheet-shaped, surrounds and covers the exhaust pipe and is located between the two sets of clamps 1;

[0033] There are multiple sets of pressure rods 3 (made of heat-resistant material). The two ends of the pressure rods 3 are inserted into the opposite side walls of two sets of sleeves 1 respectively. The multiple sets of pressure rods 3 are distributed circumferentially in the sleeves 1. At the same time, the pressure rods 3 press on the heat insulation pad 2, pressing the heat insulation pad 2, which is wrapped into a cylindrical sleeve, onto the exhaust pipe, thus improving the pressing effect.

[0034] When the heat insulation pad 2 needs to be removed, simply remove the pressure rod 3. Even if the heat insulation pad 2 is long, it can still ensure sufficient coverage.

[0035] In one embodiment: Please refer to Figure 1 The pressure rod 3 is an elastic rod, which allows the pressure rod 3 to be installed or removed without disassembling the sleeve 1. At this time, slots 12 are provided at corresponding positions on the opposite side walls of the two sets of sleeves 1, and the two ends of one set of elastic rods are respectively inserted into the slots 12 facing each other on the opposite side walls of the two sets of sleeves 1.

[0036] In one embodiment: Please refer to Figure 2 , Figure 3 The pressure bar 3 can also be a rigid bar, which can further stabilize the pressure applied to the heat-insulating pad 2;

[0037] At this time, annular track grooves 13 are formed inwardly on the opposite side walls of the two sets of clamps 1, and a notch 14 is opened on the outer side wall of the annular track groove 13 (the width of the notch 14 is greater than the diameter of the pressure rod 3). The two ends of the pressure rod 3 enter the annular track grooves 13 on the two sets of clamps 1 through the notch 14, and move along the annular track grooves 13 to adjust the position of each set of pressure rods 3.

[0038] In one embodiment: Please refer to Figure 3 , Figure 4 The pressure rod 3 can be directly installed on the outer wall of the heat insulation pad 2 to achieve structural integration of the pressure rod 3 and the heat insulation pad 2; for example, rod sleeves 21 are formed at intervals on the outer wall of the heat insulation pad 2, and a set of pressure rods 3 protrudes at both ends after passing through a set of corresponding rod sleeves 21, which further simplifies the installation and disassembly steps of the heat insulation pad 2.

[0039] Specifically: when the width of the heat insulation pad 2 is equal to the circumference of the exhaust pipe, if the pressure rod 3 and the heat insulation pad 2 are set independently, at least one set of pressure rods 3 is used to press at the joint; if the pressure rod 3 is integrally connected with the rod sleeve 21 on the heat insulation pad 2, rod sleeves 21 are set on both sides of the heat insulation pad 2, and two sets of pressure rods 3 are passed through respectively, and the joint formed by the two sets of pressure rods 3 is pressed by the cooperation of the two sets of pressure rods 3.

[0040] When the width of the heat insulation pad 2 is greater than the circumference of the exhaust pipe, if the pressure rod 3 and the heat insulation pad 2 are set independently, at least one set of pressure rods 3 is used to press on the overlapping part; if the pressure rod 3 is integrally connected with the rod sleeve 21 on the heat insulation pad 2, the rod sleeve 21 is set on one side of the heat insulation pad 2 and the rod sleeve 21 is not set on the other side, so that the pressure rod 3 passing through the rod sleeve 21 near the side can press on the overlapping part of the heat insulation pad 2 formed by the cylinder from the outside.

[0041] In one embodiment: a high-temperature resistant elastic pad is attached to the inner wall of the annular track groove 13 or frictional resistance is increased by structural design, so that the frictional resistance between the end of the pressure rod 3 and the annular track groove 13 is increased, thus preventing the position of the pressure rod 3 from moving arbitrarily when no external force is applied after the heat insulation sleeve is installed.

[0042] Alternatively, the pressure rods 3 located in the sleeves 21 on both sides of the heat-insulating pad 2 can be magnetically attracted and connected.

[0043] Personal safety precautions must be taken during the replacement process.

[0044] In one embodiment, the slot 12 or the annular track groove 13 can be symmetrically arranged on both sides of the sleeve 1, and then multiple sets can be evenly spaced along the length of the straight section of the exhaust pipe, thereby achieving standardization of the length of the heat insulation pad 2.

[0045] The parts not disclosed in this utility model are all prior art, and their specific structures and working principles will not be described in detail.

[0046] Unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0047] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A heat insulation sleeve for an exhaust pipe, comprising a clamp (1), at least two sets of heat insulation pads (2) fitted onto a straight section of the exhaust pipe and covering the exhaust pipe, characterized in that: The heat-insulating pad (2) is located between the two sets of clamps (1); It also includes pressure rods (3), with both ends inserted into the opposite side walls of two sets of hoops (1). Multiple sets of pressure rods (3) are distributed circumferentially in the annular track groove (13), while the pressure rods (3) press against the heat insulation pad (2).

2. The exhaust pipe heat insulation sleeve according to claim 1, characterized in that: Rod sleeves (21) are formed at intervals on the outer wall of the heat insulation pad (2), and a set of pressure rods (3) extend out at both ends after passing through a set of corresponding rod sleeves (21).

3. The exhaust pipe heat insulation sleeve according to claim 1 or 2, characterized in that: The pressure bar (3) is an elastic bar; Slots (12) are provided at corresponding positions on the opposite sidewalls of the two sets of clamps (1), and the two ends of a set of elastic rods are respectively inserted into the slots (12) facing each other on the opposite sidewalls of the two sets of clamps (1).

4. A heat insulation sleeve for an exhaust pipe according to claim 1 or 2, characterized in that: The pressure bar (3) is a rigid bar; An annular track groove (13) is formed inwardly on the opposite sidewalls of the two sets of clamps (1), and a notch (14) is provided on the outer wall of the track groove. The two ends of the pressure rod (3) enter the annular track groove (13) on the two sets of clamps (1) through the notch (14).

5. The exhaust pipe heat insulation sleeve according to claim 4, characterized in that: The width of the notch (14) is greater than the diameter of the pressure bar (3).

6. The exhaust pipe heat insulation sleeve according to claim 1, characterized in that: The hoop (1) is made of heat-insulating material.

7. The exhaust pipe heat insulation sleeve according to claim 3, characterized in that: The slots (12) can be symmetrically distributed on both sides of the sleeve (1).

8. The exhaust pipe heat insulation sleeve according to claim 4, characterized in that: The annular track groove (13) can be symmetrically distributed on both sides of the hoop (1).

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