Engine heat insulation structure and engine protective cover

Abstract

The utility model provides an engine heat insulation structure which comprises a cover plate, one face of the cover plate faces an engine, the face facing the engine is connected with a heat insulation plate, the heat insulation plate comprises a bonding layer, a reinforcing layer and a flame retardant layer which are fixedly connected in sequence, a connecting sleeve is embedded in the reinforcing layer and connected with a connecting cylinder penetrating through the bonding layer, and the connecting cylinder is connected with the heat insulation plate. The connecting cylinder and the cover plate are connected through a connecting piece. The utility model solves the problem that the heat insulation plate is easy to separate from the cover plate in the prior art. The utility model further provides an engine protective cover.

Description

Technical Field

[0001] The utility model relates to the technical field of engine protection structures, in particular to an engine heat insulation structure and an engine protection cover. Background Art

[0002] A protective cover is provided in the engine compartment of a car to contain the engine and surrounding wiring harnesses and other accessories, to prevent the intrusion of dust, rainwater, etc., and at the same time to improve the aesthetics of the engine compartment. The engine may overheat during operation, or even catch fire accidentally. Therefore, the protective cover provided in the prior art generally needs to be equipped with a heat insulation layer. Specifically, the protective cover generally includes a cover plate, and a heat insulation board bonded to the cover plate by viscose, and the heat insulation board is generally a multi-layer structure, which may specifically include a reinforced aluminum foil layer and a flame retardant non-woven fabric layer, and high-temperature composite glue is applied between the layers, and then pressed into an integrated structure, the reinforced aluminum foil layer is bonded to the cover plate by viscose (generally high-temperature resistant viscose), and the flame retardant non-woven fabric layer faces the engine compartment. However, in actual use, although high-temperature resistant adhesive is used, the adhesive is easy to fail over time, and the insulation board and the cover plate are still prone to falling off. At this time, the insulation board needs to be uncovered for replacement. After uncovering the insulation board, a large amount of adhesive will remain on the cover plate and cannot be completely removed, affecting the subsequent bonding effect of the insulation board, which may fall off in a short time. Utility Model Content

[0003] In view of the deficiencies existing in the prior art, the utility model provides an engine heat insulation structure, which solves the problem in the prior art that adhesive residues may occur during the replacement of the heat insulation board, causing the subsequent heat insulation board to fall off more easily.

[0004] According to an embodiment of the utility model, an engine heat insulation structure includes a cover plate, one side of the cover plate faces the engine and the other side facing the engine is connected to a heat insulation board, the heat insulation board includes an adhesive layer, a reinforcement layer and a flame retardant layer fixedly connected in sequence, a connecting sleeve is buried in the reinforcement layer, the connecting sleeve is connected to a connecting tube passing through the adhesive layer, and the connecting tube and the cover plate are connected by a connecting piece.

[0005] In the above embodiment, a reinforcement layer is added to the insulation board, which is connected to the connecting tube through a connecting sleeve arranged in the reinforcement layer, and then the insulation board is fixed to the cover plate through a connecting piece. When replacing, the connecting piece can be removed and then reinstalled without causing adverse effects on subsequent insulation boards. This solves the problem in the prior art that adhesive residue will be left during the replacement of the insulation board, causing the subsequent insulation board to fall off more easily.

[0006] Furthermore, the connecting sleeve and the connecting cylinder are threadedly connected, and the connecting piece and the connecting cylinder are threadedly connected.

[0007] Furthermore, the connecting piece includes a screw and a fixing cap, a through hole is provided on the cover plate, and the fixing cap is buckled on a side of the through hole away from the heat insulation board.

[0008] Furthermore, the connecting tube is received in the through hole and abuts against the fixing cap.

[0009] Furthermore, a first elastic ring is sleeved outside the screw rod and is located between the connecting tube and the fixing cap.

[0010] Furthermore, the perforation includes a connected equal diameter section and a reduced diameter section, and the end of the reduced diameter section connected to the equal diameter section is smaller, and a second elastic ring tightly pressed in the reduced diameter section is sleeved outside the connecting tube.

[0011] Furthermore, a support platform is provided between the equal diameter section and the variable diameter section, and an end surface of one end of the second elastic ring is pressed against the support platform.

[0012] Furthermore, the connecting tube and the connecting sleeve are integrally arranged.

[0013] According to an embodiment of the utility model, an engine protective cover is also provided, which includes the above-mentioned engine heat insulation structure.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] The connecting sleeve arranged in the reinforcement layer is connected to the connecting tube, and then the heat insulation board is fixed to the cover plate through the connecting piece. When replacing, the connecting piece can be removed and then reinstalled without causing adverse effects on subsequent heat insulation boards. This solves the problem in the prior art that adhesive residue may occur during the replacement of the heat insulation board, causing the subsequent heat insulation board to fall off more easily. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model;

[0017] Figure 2 for Figure 1 A schematic diagram of the enlarged local structure at center A;

[0018] In the above drawings:

[0019] Cover plate 1, heat insulation board 2, adhesive layer 3, reinforcement layer 4, flame retardant layer 5, connecting sleeve 6, connecting tube 7, screw 8, fixing cap 9, perforation 10, first elastic ring 11, equal diameter section 12, variable diameter section 13, second elastic ring 14, connecting piece 15. DETAILED DESCRIPTION

[0020] The technical solution of the present utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0021] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0022] In an exemplary embodiment, Figure 1 , 2 As shown, this embodiment provides an engine insulation structure, which includes a cover plate 1, one side of the cover plate 1 faces the engine and the other side facing the engine is connected to a heat insulation plate 2, the heat insulation plate 2 includes an adhesive layer 3, a reinforcement layer 4 and a flame retardant layer 5 fixedly connected in sequence, a connecting sleeve 6 is buried in the reinforcement layer 4, the connecting sleeve 6 is connected to a connecting tube 7 passing through the adhesive layer 3, and the connecting tube 7 and the cover plate 1 are connected by a connecting piece 15.

[0023] In the above embodiment, a reinforcement layer 4 is added to the insulation board 2, which is connected to the connecting tube 7 by a connecting sleeve 6 arranged in the reinforcement layer 4, and then the insulation board 2 is fixed to the cover plate 1 by a connecting piece 15. When replacing, the connecting piece 15 can be removed and then reinstalled without causing adverse effects on subsequent insulation boards 2. This solves the problem in the prior art that adhesive residue will remain during the replacement of the insulation board 2, causing the subsequent insulation board 2 to fall off more easily.

[0024] In a further exemplary embodiment, Figure 1 , 2As shown, an engine protective cover including the above-mentioned engine heat insulation structure is provided. Specifically, the adhesive layer is similar to that in the prior art, which can be a reinforced aluminum foil layer, and the flame retardant layer 5 can be a flame retardant non-woven fabric layer in the prior art. The difference is that a reinforcement layer 4 is added between the two (similar to the prior art, high-temperature composite glue is applied between the layers, and then pressed into an integrated structure). The reinforcement layer 4 can be made of centrifugal glass wool, which has a certain mechanical strength and plays a role in supporting the skeleton, making the heat insulation layer stronger. At the same time, it also provides a pre-buried foundation for the connecting sleeve 6, so that the connecting sleeve 6 and the heat insulation board 2 are in a The structure is an integrated structure, and the corresponding adhesive layer is provided with a hole corresponding to the connecting sleeve 6, for the connecting tube 7 to pass through and connect with the connecting sleeve 6. In more detail, the connecting sleeve 6 and the connecting tube 7 can be threaded or integrally arranged, and the connecting piece 15 and the connecting tube 7 are preferably threaded, so as to facilitate disassembly and installation; further, the connecting sleeve 6 in the present scheme is pre-embedded in the reinforcement layer 4 of the insulation board 2, and then the detachable connection between the insulation board 2 and the cover plate 1 is realized through the connecting tube 7 and the connecting piece 15, which can facilitate disassembly and replacement while ensuring the connection strength.

[0025] In a further exemplary embodiment, Figure 1 , 2 As shown, the connecting member 15 includes a screw rod 8 and a fixing cap 9, a through hole 10 is provided on the cover plate 1, and the fixing cap 9 is buckled on the side of the through hole 10 away from the insulation board 2, and the screw rod 8 can be conveniently rotated through the fixing cap 9, so as to realize the detachable connection between the connecting member 15 and the connecting tube 7. In more detail, the connecting tube 7 is accommodated in the through hole 10 and abuts against the fixing cap 9, so that the installation of the insulation board 2 and the cover plate 1 is realized. More specifically, the screw rod 8 is also sleeved with a first elastic ring 11 located between the connecting tube 7 and the fixing cap 9, so that the connection of the connecting member 15 can be more stably connected, and the first elastic ring 11 can be made of rubber or a metal gasket.

[0026] In a further exemplary embodiment, Figure 1 , 2As shown, the through hole 10 includes a connected equal diameter section 12 and a reduced diameter section 13, and the end of the reduced diameter section 13 connected to the equal diameter section is smaller. A second elastic ring 14 is also sleeved outside the connecting tube 7 and pressed tightly inside the reduced diameter section 13. The second elastic ring 14 can be made of rubber material. The initial size of the second elastic ring 14 is larger than the set reduced diameter section 13, but the second elastic ring 14 has an end smaller than the large end of the reduced diameter section 13. The second elastic ring 14 is first sleeved outside the connecting tube 7, and then the small ends of the connecting tube 7 and the second elastic ring 14 enter the through hole 10. (in the reducing section 13), and then connect the connecting piece 15 to connect the screw rod 8 and the connecting tube 7, and then further rotate the fixing cap 9 to make the connecting tube 7 and the second elastic ring 14 be completely pulled into the through hole 10 and make the second elastic ring 14 be tightly pressed in the reducing section 13; in more detail, a support platform is provided between the equal diameter section 12 and the reducing section 13, and one end face of the second elastic ring 14 is pressed against the support platform, so that the second elastic ring 14 can be prevented from accidentally pressing into the equal diameter section 12 to cause the second elastic ring 14 to be accidentally deformed and damaged.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. An engine heat insulation structure, characterized in that: It includes a cover plate, one side of the cover plate faces the engine and the other side facing the engine is connected to a heat insulation plate, the heat insulation plate includes an adhesive layer, a reinforcement layer and a flame retardant layer fixedly connected in sequence, a connecting sleeve is buried in the reinforcement layer, the connecting sleeve is connected to a connecting tube passing through the adhesive layer, and the connecting tube and the cover plate are connected by a connecting piece.

2. The engine heat insulation structure according to claim 1, characterized in that: The connecting sleeve is threadedly connected to the connecting tube, and the connecting piece is threadedly connected to the connecting tube.

3. The engine heat insulation structure according to claim 2, characterized in that: The connecting piece includes a screw and a fixing cap. A through hole is provided on the cover plate. The fixing cap is buckled on a side of the through hole away from the heat insulation board.

4. The engine heat insulation structure according to claim 3, characterized in that: The connecting tube is received in the through hole and abuts against the fixing cap.

5. The engine heat insulation structure according to claim 4, characterized in that: The screw rod is also sleeved with a first elastic ring located between the connecting tube and the fixing cap.

6. The engine heat insulation structure according to any one of claims 3 to 5, characterized in that: The perforation includes a connected equal diameter section and a reduced diameter section, and the reduced diameter section has a smaller end connected to the equal diameter section. A second elastic ring tightly pressed inside the reduced diameter section is sleeved outside the connecting tube.

7. The engine heat insulation structure according to claim 6, characterized in that: A support platform is provided between the equal diameter section and the variable diameter section, and an end surface of one end of the second elastic ring is pressed against the support platform.

8. The engine heat insulation structure according to claim 2, characterized in that: The connecting tube and the connecting sleeve are integrally arranged.

9. An engine protective cover, characterized in that: The invention comprises the engine heat insulation structure as claimed in any one of claims 1 to 8.

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