Connecting piece for stainless steel heat shield of automobile

Abstract

The utility model relates to the technical field of automobile parts, and discloses a connecting piece for an automobile stainless steel heat shield, which comprises a heat shield, the heat shield consists of a front part and a rear part, the front heat shield and the rear heat shield are fixed through a metal bar, and the side edges of the front heat shield and the rear heat shield are respectively provided with a front edge strip and a rear edge strip. A fixing assembly is arranged between the front edge strip and the rear edge strip and used for fixing the front edge strip and the rear edge strip. According to the utility model, the metal bar belt is used for replacing a welding fixing mode, so that the front heat shield and the rear heat shield are fixed more conveniently and quickly, the cost is reduced, and pollution caused by welding is avoided; and the front and rear edge strips and the fixing assembly are added, so that the front and rear heat insulation covers are further conveniently positioned and fixed. The front edge strip and the rear edge strip can be automatically aligned and can be fixed in a pressing mode, operation is convenient and fast, and the connection stability of the front heat shield and the rear heat shield is further improved.

Description

Technical Field

[0001] The utility model relates to the field of automobile parts, in particular to a connecting piece for an automobile stainless steel heat insulation cover. Background Art

[0002] The exhaust pipe heat shield is designed to isolate and reduce the impact of the high temperature of the exhaust pipe on surrounding components and the interior space of the vehicle, thereby protecting the surrounding components and improving ride comfort.

[0003] Existing automotive parts exhaust pipe heat shields are currently fixed by welding. First of all, in the actual welding process, it is easy to have loose welding, the fixing position is not easy to fix each time, and there are too many or too few weldings; secondly, from an environmental perspective, smoke appears every time welding, and a large number of welding has a pungent welding smell, which affects both the operators and the environment. Finally, for those high-rebound heat shield products, the internal and external shapes have poor fit and are easy to open, so a lot of manpower or tooling is needed to fix and weld them. The operation is difficult and the efficiency is low.

[0004] Based on this, the applicant proposes a connecting piece for a stainless steel heat shield of an automobile. Utility Model Content

[0005] In order to solve the technical problems raised in the background technology, the utility model provides a connecting piece for a stainless steel heat insulation cover of an automobile.

[0006] The utility model is implemented by the following technical scheme: a connector for a stainless steel heat shield for an automobile, comprising a front heat shield and a rear heat shield, one side of the front heat shield is connected to a mounting plate, and between the front and rear heat shields are arranged:

[0007] A binding strap fixedly connected to the outer sides of the front heat shield and the rear heat shield;

[0008] Side strips, the side strips comprising a front side strip and a rear side strip, the front side strip and the rear side strip being fixedly connected to the front heat insulation cover and the rear heat insulation cover respectively;

[0009] A fixing component, which is arranged on the inner side of the front side strip and the rear side strip and is used to fix the front side strip and the rear side strip. The fixing component includes an upper locking rod, a lower locking rod and a fixing pin. The fixing pin is fixedly connected to the front side strip. The upper and lower locking rods are arranged inside the rear side strip, and one end of the upper and lower locking rods can be inserted into the fixing pin.

[0010] Through the above technical solution, the front and rear heat shields can be aligned and fixed conveniently through the combination of the front and rear side strips. First, they can be fixed by straps. In addition, the front and rear side strips are respectively provided with corresponding fixing components, which can fix the front and rear side strips, thereby fixing the front and rear heat shields together, and fixing the front and rear heat shields to the outside of the exhaust pipe. After the front and rear heat shields are fixed, the exhaust pipe is covered inside, thereby achieving heat insulation of the exhaust pipe. Rapid fixing and installation through straps and fixing components replaces welding. Reduces costs and pollution.

[0011] As a further improvement of the above solution, it is characterized in that the material of the binding strap is 304 stainless steel, and grooves corresponding to the positions of the binding straps are provided on the front heat insulation cover and the rear heat insulation cover.

[0012] Through the above technical solution, this embodiment can use 304 stainless steel straps with a thickness of 0.5 mm, and the number of straps is three. The strap operation is convenient and quick, and there is no pollution. The front and rear heat insulation covers are provided with grooves on the surface to facilitate the positioning of the straps.

[0013] As a further improvement of the above solution, the front side strip is fixedly connected to the side of the front heat shield, a mounting hole is provided in the middle of the front side strip, and the side of the front side strip is arranged as an inclined surface.

[0014] As a further improvement of the above solution, the rear side strip is fixedly connected to the side of the rear heat insulation cover, a clamping block corresponding to the position of the mounting hole is fixedly connected in the middle of the rear side strip, a mounting groove for accommodating the front side strip is opened on the rear side strip, and the side of the mounting groove is set as an inclined surface.

[0015] Through the above technical solution, firstly, the front side bar as a whole can be snapped into the mounting groove of the rear side bar, and the mounting groove and the contact surface of the front side bar are both inclined surfaces, which is convenient for alignment and positioning. In addition, the position of the card block corresponds to the mounting hole, and the card block can enter the inside of the mounting hole.

[0016] As a further improvement of the above solution, a fixing pin is fixedly connected to the bottom of the front edge strip, a first inclined surface and a second inclined surface are provided at the bottom of the fixing pin, and a first fixing hole and a second fixing hole are provided on both sides of the fixing pin.

[0017] As a further improvement of the above solution, a first cavity and a second cavity are provided inside the card block, a locking rod is movably installed in the first cavity, a plug hole is provided in the middle of the locking rod, and an inclined surface is provided on the side of the plug hole.

[0018] Through the above technical solution, the above fixing pin can be inserted into the inside of the block, and the height of the locking rod corresponds to the height of the first fixing hole, and one side of the locking rod can be inserted into the inside of the first fixing hole.

[0019] As a further improvement of the above solution, a retaining ring is fixedly provided on the locking rod, and a first spring is sleeved on the outer side of the locking rod. The first spring is located between the retaining ring and the inner wall of the first cavity.

[0020] As a further improvement of the above solution, a fixing slot corresponding to the locking rod is provided on the side wall of the mounting hole.

[0021] With the above technical solution, when the fixing pin is inserted into the block, the first inclined surface pushes the locking rod to move so that it enters the fixing slot on the side wall of the mounting hole. At the same time, under the action of the first spring, the locking rod can enter the first fixing hole of the fixing pin.

[0022] As a further improvement of the above solution, a lower locking rod is slidably connected in the second cavity, and the upper end surface of the lower locking rod is an inclined surface.

[0023] As a further improvement of the above solution, a second spring is further arranged between the lower locking rod and the second cavity.

[0024] Through the above technical solution, the upper end inclined surface of the lower locking rod corresponds to the second inclined surface of the fixing pin. The fixing pin can push the lower locking rod into the second cavity to compress the second spring, and the second spring can push the front end of the lower locking rod into the second fixing hole.

[0025] Compared with the prior art, the beneficial effects of the present invention are:

[0026] 1. The utility model uses metal bars instead of welding to fix the front and rear heat shields, making it more convenient and quicker to fix them, reducing costs and avoiding pollution caused by welding.

[0027] 2. The utility model further facilitates the positioning and fixing of the front and rear heat shields by adding front and rear side strips and fixing components. The front and rear side strips can be automatically aligned and can be fixed by pressing, which is convenient to operate and further increases the stability of the connection between the front and rear heat shields. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the overall structure of the first embodiment of the utility model;

[0029] Figure 2 This is a schematic diagram of the connection relationship between the front and rear heat insulation covers and the binding straps in the first embodiment of the utility model;

[0030] Figure 3 This is a schematic diagram of the overall structure of the second embodiment of the utility model;

[0031] Figure 4 For this utility model Figure 3 AA schematic diagram;

[0032] Figure 5 This is a schematic diagram of the position relationship between the front and rear side strips of the utility model;

[0033] Figure 6 This is a cross-sectional view of the connection between the front and rear side strips of the utility model;

[0034] Figure 7 It is a schematic diagram of the connection relationship between the locking rod and the fixing pin of the utility model.

[0035] Explanation of main symbols: 1. Rear heat shield; 2. Front heat shield; 3. Binding strap; 4. Mounting plate; 5. Front side strip; 6. Rear side strip; 7. Mounting hole; 8. Block; 9. Fixing pin; 10. First inclined plane; 11. Second inclined plane; 12. First fixing hole; 13. Second fixing hole; 14. First cavity; 15. Upper locking rod; 16. Plug socket; 17. Retaining ring; 18. First spring; 19. Second cavity; 20. Lower locking rod; 21. Second spring; 22. Mounting slot; 23. Fixing bayonet; 24. Fixing assembly. DETAILED DESCRIPTION

[0036] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0037] Embodiment 1:

[0038] Please combine Figure 1 and Figure 2 , a connector for a stainless steel heat shield for an automobile in this embodiment comprises a combined front heat shield 2 and a rear heat shield 1. The combination of the front heat shield 2 and the rear heat shield 1 can cover the automobile exhaust pipe inside, thereby isolating the heat of the exhaust pipe, reducing the impact of the exhaust pipe heat on surrounding components and the interior of the automobile, protecting surrounding components and improving ride comfort. In order to conveniently wrap the exhaust pipe, the heat shield is generally a combined type. The outside of the heat shield is made of metal, and the inside is made of heat insulation cotton or high-temperature resistant material, which is a prior art. In order to facilitate the connection between the heat shield and other parts of the automobile, a mounting plate 4 is welded and fixed on one side of the rear heat shield 1.

[0039] In order to facilitate the connection and fixation of the front and rear heat shields 1, a binding strap 3 is provided. In this embodiment, a stainless steel binding strap 3 with a thickness of 0.5 mm is selected. In order to facilitate the positioning of the binding strap 3, a groove is provided at the corresponding position of the front and rear heat shields 1, and the stainless steel binding strap 3 is sleeved at the position of the groove. In this embodiment, the number of binding straps 3 is three.

[0040] When using it, first make sure that the surfaces of the connector and the heat shield are clean and free of oil to avoid affecting the connection effect. Then fix the rear heat shield 1 in position, place the exhaust pipe in the rear heat shield 1, and then align the front heat shield 2 with the rear heat shield 1, buckle it on the exhaust pipe, and press it by hand. Finally, wrap the strap 3 along the groove position and fix it with the buckle.

[0041] Conventional technology is that the front and rear heat shields 1 are fixed by welding. This embodiment uses stainless steel bands 3 instead of welding. There are the following advantages: First, in terms of performance, the bumps during the driving of the car make the welding easy to loosen, and the band 3 type installation is more reliable; secondly, in terms of installation, the band 3 type is convenient and quick to operate, easy to disassemble and replace, and the welding type is difficult to operate, and requires welding with welding current, which is time-consuming and labor-intensive, and difficult to disassemble; in terms of cost, the stainless steel band 3 is resistant to high temperatures, light in weight and low in cost. The welding type requires welding with welding current; in terms of environmental protection and appearance: the band 3 type is pollution-free and has a neat appearance, while welding has a pungent odor, is highly polluting, and has welding slag.

[0042] Embodiment 2:

[0043] Please combine Figure 3-Figure 5 Based on Example 1, this embodiment is further improved in that:

[0044] In order to make the front and rear heat shields 1 more convenient, side strips are first fixedly provided on the sides of the front and rear heat shields 1, and the side strips of the front heat shield 2 are defined as the front side strips 5, and the side strips of the rear heat shield 1 are defined as the rear side strips 6. In actual use, a one-time molding method can be used to add side panels to the sides of the front and rear heat shields 1, and then the side panels are processed into the shapes required by the front and rear side strips 6.

[0045] A fixing assembly 24 is also provided in the front and rear side strips 6, and the fixing assembly 24 is used to fix the front and rear side strips 6. Specifically, first, a mounting hole 7 is provided in the middle of the front side strip 5, and three side surfaces of the front side strip 5 (except the side surface connected to the front heat shield 2) are all arranged as inclined surfaces. Correspondingly, a mounting groove 22 for accommodating the front side strip 5 is provided in the middle of the rear side strip 6, and the three side surfaces of the mounting groove 22 are also arranged as inclined surfaces. In actual use, the front side strip 5 can enter the mounting groove 22. The inclined surfaces on the front side strip 5 and the mounting groove 22 facilitate the alignment of the front side strip 5 with the mounting groove 22. That is, the front and rear side strips 6 are ensured to be aligned and installed.

[0046] Please combine Figure 6 and Figure 7 In addition, a fixing pin 9 is fixedly connected to one side of the front strip 5 facing the rear strip 6, and a clamping block 8 is fixedly arranged in the mounting groove 22 of the rear strip 6. When the front and rear strips 6 are aligned and fitted, the clamping block 8 can enter the interior of the mounting hole 7. At the same time, the lower end of the fixing pin 9 is inserted into the interior of the clamping block 8.

[0047] In order to fix the front and rear side strips 6 , a first inclined surface 10 and a second inclined surface 11 are provided on the lower end surface of the fixing pin 9 , and a first fixing hole 12 and a second fixing hole 13 are provided on the side surface of the fixing pin 9 .

[0048] At the same time, a first cavity 14 and a second cavity 19 are provided inside the block 8. First, a locking rod 15 is slidably installed in the first cavity 14. A plug hole 16 is provided on the locking rod 15. The fixing pin 9 can pass through the plug hole 16. One side of the plug hole 16 is provided with an inclined surface adapted to the first inclined surface 10 at the lower end of the fixing pin 9. When the fixing pin 9 moves downward through the plug hole 16, the first inclined surface 10 contacts the inclined surface of the plug hole 16, which pushes the locking rod 15 to move to the right.

[0049] In addition, a retaining ring 17 is fixedly connected to the locking rod 15, and a first spring 18 is sleeved outside the locking rod 15, and the two ends of the first spring 18 are respectively in contact with the retaining ring 17 and the inner wall of the first cavity 14. In addition, a fixed bayonet 23 corresponding to the locking rod 15 is opened on the side of the mounting hole 7 of the front side bar 5.

[0050] In summary, when the fixing pin 9 moves downward, it will push the locking rod 15 to move to the right. When the fixing pin 9 moves to the right, the front end enters the fixing bayonet 23, and the first spring 18 is compressed. When the fixing pin 9 continues to move downward until the height of the first fixing hole 12 is aligned with the height of the locking rod 15, the locking rod 15 will move to the left under the action of the restoring force of the first spring 18, that is, one end is snapped into the fixing pin 9. That is, the locking rod 15 moves to the right first and then to the left, and the distance moved to the right is greater than the distance moved to the left. The final state is that the main part of the locking rod 15 is located in the first cavity 14, and the left and right ends are respectively located in the first fixing hole 12 of the fixing pin 9 and the fixing bayonet 23 on the side wall of the mounting hole 7. The locking rod 15 fixes the fixing pin 9 and the upper side strip.

[0051] In addition, a lower locking rod 20 is slidably arranged in the second cavity 19, and an inclined surface is also arranged on the upper end surface of the lower locking rod 20. A second spring 21 is also arranged between the lower locking rod 20 and the second cavity 19. Under the action of the second spring 21, the front end of the lower locking rod 20 extends out of the second cavity 19. When the fixing pin 9 moves downward, the second inclined surface 11 contacts the lower locking rod 20, and first pushes the lower locking rod 20 to slide into the second cavity 19, compressing the second spring 21. When the fixing pin 9 continues to move downward until the height of the second fixing hole 13 corresponds to that of the lower locking rod 20, the lower locking rod 20 extends out under the action of the restoring force of the second spring 21, and the front end enters the second fixing hole 13. The fixing pin 9 is fixed.

[0052] The implementation principle of a connector for a stainless steel heat shield for an automobile in an embodiment of the present application is as follows:

[0053] (I): First, fix the rear heat shield 1 in position, place the exhaust pipe inside the rear heat shield 1, then align the front and rear side strips 6, buckle them on the exhaust pipe, and press them by hand. When the front and rear side strips 6 are in corresponding positions, because the contact surfaces of the mounting grooves 22 of the front side strips 5 and the rear side strips 6 are corresponding inclined surfaces, during the pressing process, the front and rear side strips 6 will automatically align in the center along the inclined surface, which is convenient for subsequent fixing.

[0054] (ii): During the pressing process, the block 8 first enters the installation hole 7, and the fixing pin 9 is also inserted into the block 8. When the fixing pin 9 enters the block 8, it first contacts the upper locking rod 15 and pushes the upper locking rod 15 to move to the right, so that the right end of the upper locking rod 15 is inserted into the fixed bayonet 23; then the fixing pin 9 contacts the lower locking rod 20 and pushes the lower locking rod 20 to move into the second cavity 19. Until the fixing pin 9 continues to move downward. Until the upper locking rod 15 corresponds to the position of the first fixing hole 12, and the lower locking rod 20 corresponds to the position of the second fixing hole 13. Therefore, the upper and lower locking rods 20 move in opposite directions under the restoring force of the first and second springs 21, respectively, and enter the first fixing hole 12 and the second fixing hole 13, respectively.

[0055] That is, in the final state, the main body of the upper locking rod 15 is located in the first cavity 14, and the left and right ends are respectively located in the first fixing hole 12 of the fixing pin 9 and the fixing bayonet 23 on the side wall of the mounting hole 7. The upper locking rod 15 fixes the fixing pin 9 and the upper side bar. One end of the lower locking rod 20 is located inside the fixing pin 9, and the other end is located in the second cavity 19. The fixing pin 9 can also be fixed.

[0056] Reference Figure 4 First, the mounting groove 22 on the rear side strip 6 blocks the upper side strip from the bottom and the side. At the same time, in the up and down direction, since the upper side strip and the fixing pin 9 are fixed by the upper and lower locking rods 20, they cannot move up and down. Therefore, the front and rear side strips 6 can be connected firmly.

[0057] This embodiment adds front and rear side strips 6 and fixing components 24 on the basis of embodiment 1, which further facilitates the positioning and fixing of the front and rear heat shields 1. That is, before installing the stainless steel band 3, the front and rear side strips 6 are aligned and fixed. In addition to facilitating the subsequent fixing of the band 3, the stability of the connection between the front and rear heat shields 1 is also increased.

[0058] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A connector for a stainless steel heat shield for an automobile, characterized in that: It includes a front heat shield and a rear heat shield, one side of the front heat shield is connected to a mounting plate, and between the front heat shield and the rear heat shield is provided: A binding strap fixedly connected to the outer sides of the front heat shield and the rear heat shield; Side strips, the side strips comprising a front side strip and a rear side strip, the front side strip and the rear side strip being fixedly connected to the front heat insulation cover and the rear heat insulation cover respectively; A fixing component, which is arranged on the inner side of the front side strip and the rear side strip and is used to fix the front side strip and the rear side strip. The fixing component includes an upper locking rod, a lower locking rod and a fixing pin. The fixing pin is fixedly connected to the front side strip. The upper locking rod and the lower locking rod are arranged inside the rear side strip, and one end of the upper locking rod and the lower locking rod can be inserted into the fixing pin.

2. A connector for a stainless steel heat shield for an automobile as claimed in claim 1, characterized in that: The material of the binding strap is 304 stainless steel, and grooves corresponding to the positions of the binding straps are provided on the front heat insulation cover and the rear heat insulation cover.

3. The connector for the automotive stainless steel heat shield according to claim 1, characterized in that: The front side strip is fixedly connected to the side of the front heat shield, a mounting hole is provided in the middle of the front side strip, and the side of the front side strip is arranged as an inclined surface.

4. The connector for the automotive stainless steel heat shield according to claim 3, characterized in that: The rear side strip is fixedly connected to the side of the rear heat shield, a clamping block corresponding to the position of the mounting hole is fixedly connected in the middle of the rear side strip, a mounting groove for accommodating the front side strip is opened on the rear side strip, and the side of the mounting groove is set as an inclined surface.

5. The connector for the automotive stainless steel heat shield according to claim 3, characterized in that: A fixing pin is fixedly connected to the bottom of the front side strip, a first inclined surface and a second inclined surface are arranged at the bottom of the fixing pin, and a first fixing hole and a second fixing hole are opened at both sides of the fixing pin.

6. The connector for the automotive stainless steel heat shield according to claim 4, characterized in that: A first cavity and a second cavity are provided inside the card block, a locking rod is movably installed in the first cavity, a plug hole is provided in the middle of the locking rod, and an inclined surface is provided on the side of the plug hole.

7. The connector for the automotive stainless steel heat shield according to claim 6, characterized in that: A retaining ring is fixedly arranged on the locking rod, and a first spring is sleeved on the outer side of the locking rod. The first spring is located between the retaining ring and the inner wall of the first cavity.

8. The connector for a stainless steel heat shield for an automobile according to claim 6, characterized in that: A fixing slot corresponding to the locking rod is provided on the side wall of the mounting hole.

9. The connector for a stainless steel heat shield for an automobile according to claim 6, characterized in that: A lower locking rod is slidably connected in the second cavity, and the upper end surface of the lower locking rod is an inclined surface.

10. The connector for a stainless steel heat shield for an automobile according to claim 9, characterized in that: A second spring is also arranged between the lower locking rod and the second cavity.

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