Tool for heat shield of automobile silencer

Abstract

The utility model belongs to the technical field of silencer heat insulation covers, and particularly relates to an automobile silencer heat insulation cover tool which comprises a cover body, an empty groove, an air inlet, an air outlet and a blocking structure, the empty groove is formed in the cover body, the air inlet is fixedly connected to one side of the cover body and communicated with the empty groove, and the air outlet is communicated with the air outlet. The multiple air outlets are evenly distributed in the inner wall of the cover body, the air outlets communicate with the empty groove, and the blocking structures are arranged in the air inlets; the blocking structure comprises an impurity-preventing net block clamped in the air inlet, and a knocking protruding disc is attached to the surface of the impurity-preventing net block. According to the automobile silencer heat insulation cover tool, impurities can be filtered through the impurity-preventing net block, the impurities are prevented from entering the empty groove, the impurity-preventing net block can be prevented from being blocked through knocking of the knocking protruding disc, and compared with a contrast patent, the automobile silencer heat insulation cover tool has the advantages that the impurities can be prevented from entering the empty groove in the heat insulation cover tool; and the heat insulation effect of the heat insulation cover tool is prevented from being affected by impurities.

Description

Technical Field

[0001] The utility model belongs to the technical field of heat insulation covers for mufflers, and in particular relates to a heat insulation cover tooling for a muffler for an automobile. Background Art

[0002] A car muffler is a device installed in the car exhaust system to reduce the noise generated when the engine is working. The working principle of the muffler is mainly to convert the sound wave energy in the engine exhaust into heat energy or other forms of energy through damping, reflection and interference, thereby reducing noise.

[0003] The temperature of the automobile muffler will be very high when in use. In order to prevent the heat from being transferred into the car and affecting the driver or passengers, a heat shield is generally provided on the surface of the muffler to block the heat. In order to improve the heat insulation effect of the heat shield, people have made special improvements to the existing heat shield tooling, such as a heat shield tooling for a muffler for automobile proposed in the patent with authorization announcement number CN216043984U. The heat shield tooling in the application allows air to flow inside the n-shaped transverse grooves, thereby enhancing the heat insulation effect of the heat shield tooling.

[0004] However, the muffler heat insulation cover tooling is located at the bottom of the car during actual use. The bottom of the car is close to the road surface, and there are many impurities brought up by the wheels. These impurities can easily enter the empty grooves inside the muffler heat insulation cover tooling and cause blockage of the empty grooves. Even some impurities with good thermal conductivity can adhere to the inner wall of the empty groove and form a thermal bridge inside the empty groove, thereby affecting the thermal insulation effect. Utility Model Content

[0005] The utility model aims to provide a heat insulation cover tooling for automobile muffler, which can prevent impurities from entering into the empty groove inside the heat insulation cover tooling and prevent the impurities from affecting the heat insulation effect of the heat insulation cover tooling.

[0006] The technical solution adopted by the utility model is as follows:

[0007] A heat insulation cover tool for a muffler of an automobile, comprising a cover body, an empty slot, an air inlet, an air outlet and a blocking structure, wherein the empty slot is provided inside the cover body, the air inlet is fixedly connected to one side of the cover body and communicates with the empty slot, the number of the air outlets is several and evenly distributed on the inner wall of the cover body, the air outlet is communicated with the empty slot, and the blocking structure is arranged inside the air inlet;

[0008] The blocking structure includes an anti-miscellaneous mesh block clamped inside the air inlet, the surface of the anti-miscellaneous mesh block is fitted with a knocking convex disc, the top of the knocking convex disc is fixedly connected to a driving rod, and the side of the driving rod away from the knocking convex disc is fixedly connected to an impeller.

[0009] The anti-trash net block is arranged in a trapezoidal shape, and the width of the bottom is greater than the width of the top.

[0010] The technical effects achieved by the utility model are:

[0011] The utility model discloses a heat insulation cover tooling for an automobile muffler, which can filter impurities by using an anti-miscellaneous mesh block to prevent impurities from entering the interior of an empty groove, and the knocking of the convex disc can prevent the anti-miscellaneous mesh block from being blocked. Compared with the comparative patent, the utility model has the function of preventing impurities from entering the empty groove inside the heat insulation cover tooling, and preventing impurities from affecting the heat insulation effect of the heat insulation cover tooling.

[0012] The utility model discloses a heat insulation cover tooling for an automobile muffler, which can guide the sundries blocked by the anti-sundry net block by using the inclined angle, so as to prevent the sundries from being easily accumulated on the surface of the anti-sundry net block. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model;

[0014] Figure 2 This utility model Figure 1 A cross-sectional view of

[0015] Figure 3 This utility model Figure 1 A magnified view of middle;

[0016] Figure 4 This utility model Figure 2 Enlarged view of middle B;

[0017] Figure 5 It is a connection schematic diagram of the knocking convex disc of the utility model.

[0018] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0019] 1. Cover body; 2. Empty slot; 3. Air inlet; 4. Air outlet; 5. Anti-debris mesh block; 6. Knocking cam; 7. Driving rod; 8. Impeller; 9. Snap-in slot; 10. Ball bearing; 11. Handle; 12. Soft rubber sleeve; 13. Wear-resistant layer. DETAILED DESCRIPTION

[0020] In order to make the purpose and advantages of the utility model more clear, the utility model is specifically described in combination with the following embodiments. It should be understood that the following text is only used to describe one or several specific implementations of the utility model, and does not strictly limit the protection scope of the specific request of the utility model.

[0021] like Figures 1 to 5As shown, a heat insulation cover tooling for automobile muffler comprises a cover body 1, a hollow slot 2, an air inlet 3, an air outlet 4 and a blocking structure. The cover body 1 is the heat insulation cover tooling body and is the main heat insulation component of the automobile muffler, which can prevent the heat generated by the muffler from being conducted to the inside of the vehicle body. The hollow slot 2 is arranged inside the cover body 1. When the vehicle is running, air will enter the inside of the hollow slot 2. The air inlet 3 is fixedly connected to one side of the cover body 1 and communicated with the hollow slot 2. The outside air can enter the inside of the hollow slot 2 through the air inlet 3. The number of air outlets 4 is There are several and evenly distributed on the inner wall of the cover body 1, the air outlet 4 is connected with the empty slot 2, the air outlet 4 is mainly used to discharge air to the surface of the muffler, when in use, the air inside the empty slot 2 will form a fault, thereby enhancing the heat insulation efficiency of the cover body 1, and then the air will be discharged to the surface of the muffler through the air inlet 3, thereby taking away the heat of the muffler surface. The specific principle and work can refer to the above-mentioned comparative patent documents. This application is only an improvement made on the basis of the above-mentioned comparative patent, and the blocking structure is arranged inside the air inlet 3;

[0022] The blocking structure includes an anti-miscellaneous mesh block 5 that is clamped inside the air inlet 3. The anti-miscellaneous mesh block 5 is air-permeable but can block impurities. It is the main anti-blocking component and can effectively prevent debris from entering the interior of the empty slot 2 through the air inlet 3 during the driving of the car, and prevent debris from accumulating inside the empty slot 2. The surface of the anti-miscellaneous mesh block 5 is attached with a knocking convex plate 6. The knocking convex plate 6 is a structure for knocking the anti-miscellaneous mesh block 5, which can make the anti-miscellaneous mesh block 5 vibrate, thereby shaking off the debris accumulated on the surface, and preventing the accumulated debris from affecting the filtering effect. The top of the knocking convex plate 6 is fixedly connected with a driving rod 7. The driving rod 7 extends upward to the top of the air inlet 3, and the driving rod 7 is movably connected to the air inlet 3. The driving rod 7 is the main transmission structure, which can supply power to the knocking cam 6 so that the knocking cam 6 can rotate normally. The side of the driving rod 7 away from the knocking cam 6 is fixedly connected to the impeller 8. When the car is driving, the impeller 8 will be blown by the surrounding airflow, thereby rotating, and the driving rod 7 can use the rotation to drive the knocking cam 6 to knock on the anti-miscellaneous net block 5, thereby shaking off impurities on the surface of the anti-miscellaneous net block 5, thereby ensuring the filtering effect of the anti-miscellaneous net block 5.

[0023] like Figure 4 As shown, the anti-clutter net block 5 is set in a trapezoidal shape, and the width of the bottom is greater than the width of the top, so that the debris blocked by the anti-clutter net block 5 can be guided to prevent the debris from being easily accumulated on the surface of the anti-clutter net block 5.

[0024] like Figure 4As shown, a plurality of evenly distributed snap-in grooves 9 are provided inside the air inlet 3, and the snap-in grooves 9 are evenly distributed around the driving rod 7. Balls 10 are snap-into the snap-in grooves 9, and the balls 10 slightly extend out of the snap-in grooves 9 and fit with the driving rod 7. The rolling of the balls 10 inside the snap-in grooves 9 can eliminate the friction between the driving rod 7 and the air inlet 3, thereby protecting the safety of the driving rod 7 and meeting the requirements of long-term use.

[0025] like Figure 3 As shown, a handle 11 is fixedly connected to the surface of the anti-miscellaneous mesh block 5, and the handle 11 can be used to conveniently replace the anti-miscellaneous mesh block 5. The anti-miscellaneous mesh block 5 is pulled from the bottom, so that the anti-miscellaneous mesh block 5 can be taken out at an angle, and the anti-miscellaneous mesh block 5 can be conveniently replaced to ensure the filter layer efficiency.

[0026] like Figure 3 As shown, the surface of the handle 11 is covered with a soft rubber sleeve 12, and the soft rubber sleeve 12 is fixedly connected to the surface of the handle 11, so as to increase the comfort during the replacement operation and facilitate people's use.

[0027] like Figure 4 As shown, a wear-resistant layer 13 is fixedly connected to the surface of the knocking convex plate 6, which can greatly increase the wear-resistant effect of the knocking convex plate 6 and prevent the knocking convex plate 6 from being easily damaged.

[0028] The working principle of the utility model is as follows: when in use, the anti-miscellaneous mesh block 5 can effectively prevent debris from entering the interior of the empty slot 2 through the air inlet 3 during the driving of the car, and prevent debris from accumulating inside the empty slot 2. At the same time, the impeller 8 will be blown by the surrounding airflow when the car is driving, so that it rotates, and the driving rod 7 can use the rotation to drive the knocking convex plate 6 to knock the anti-miscellaneous mesh block 5, thereby shaking off the impurities on the surface of the anti-miscellaneous mesh block 5, thereby ensuring the filtering effect of the anti-miscellaneous mesh block 5.

[0029] The above is only a preferred embodiment of the present invention. It should be noted that, for ordinary technicians in the technical field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A heat shield tool for automobile muffler, characterized by: The invention comprises a cover body (1), a hollow groove (2), an air inlet (3), an air outlet (4) and a blocking structure, wherein the hollow groove (2) is provided inside the cover body (1), the air inlet (3) is fixedly connected to one side of the cover body (1) and communicates with the hollow groove (2), the air outlet (4) is in a plurality and is evenly distributed on the inner wall of the cover body (1), the air outlet (4) is communicated with the hollow groove (2), and the blocking structure is arranged inside the air inlet (3); The blocking structure comprises an anti-trash mesh block (5) clamped inside the air inlet (3), a knocking convex disc (6) being attached to the surface of the anti-trash mesh block (5), a driving rod (7) being fixedly connected to the top of the knocking convex disc (6), and an impeller (8) being fixedly connected to the side of the driving rod (7) away from the knocking convex disc (6).

2. The heat shield tooling for automobile muffler according to claim 1, characterized in that: The anti-trash net block (5) is arranged in a trapezoidal shape, and the width of the bottom is greater than the width of the top.

3. The heat shield tooling for automobile muffler according to claim 1, characterized in that: A plurality of evenly distributed clamping grooves (9) are provided inside the air inlet (3), and the clamping grooves (9) are evenly distributed around the driving rod (7). Balls (10) are clamped inside the clamping grooves (9).

4. The heat shield tooling for automobile muffler according to claim 1, characterized in that: A pull handle (11) is fixedly connected to the surface of the anti-trash mesh block (5).

5. The heat shield tooling for automobile muffler according to claim 4 is characterized by: The surface of the pull handle (11) is covered with a soft rubber sleeve (12), and the soft rubber sleeve (12) is fixedly connected to the surface of the pull handle (11).

6. The heat shield tooling for automobile muffler according to claim 1, characterized in that: A wear-resistant layer (13) is fixedly connected to the surface of the knocking convex disc (6).

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