Engine maintenance cover plate mounting structure and vehicle

Abstract

The utility model provides an engine maintenance cover plate installation structure which comprises a bottom protection plate and a cover plate. Wherein the bottom protection plate is connected to the bottom of the engine and is provided with an overhaul window, and the portions, located on the two sides of the overhaul window, of the bottom protection plate are provided with a first connecting part and a second connecting part correspondingly; the cover plate is provided with a third connecting part, the third connecting part is detachably connected with the first connecting part and forms running fit with the first connecting part, a fastener is arranged on the side, away from the third connecting part, of the cover plate in a penetrating mode, and the fastener is detachably connected with the second connecting part; and the cover plate opens or covers the maintenance window based on running fit. According to the engine maintenance cover plate installation structure, the connection reliability of the cover plate can be guaranteed, when an engine needs to be maintained, only the fastening piece needs to be disassembled from the second connecting piece, then the cover plate is rotated to expose the maintenance window, the cover plate can be disassembled to prevent the cover plate from influencing operation, disassembly and assembly are convenient and labor-saving, and the maintenance cost is reduced. The engine maintenance efficiency can be improved, and working hours are saved.

Description

Technical Field

[0001] The utility model belongs to the technical field of vehicles, and in particular relates to an engine maintenance cover plate installation structure and a vehicle. Background Art

[0002] The engine underbody guard is a protective component wrapped under the engine to prevent the road environment from causing damage to the engine. In order to facilitate engine maintenance, an inspection window is usually opened on the underbody guard and fixed with a maintenance cover.

[0003] At present, there are two common ways to fix the maintenance cover and the bottom guard plate. One is to directly use multiple circumferentially distributed fasteners to screw and fix them. The disadvantage of this method is that the assembly structure is complicated and the disassembly and assembly is time-consuming and labor-intensive. The other is to plug one side of the maintenance cover into the bottom guard plate and screw the other side to the bottom guard plate with fasteners. In this method, the maintenance cover can be pulled off after only removing the fasteners on one side. However, since the plug-in structure can only form a single-sided limit, when the vehicle passes through a wading section, the maintenance cover is prone to bending and shrinking under the action of water erosion or resistance, causing the plug-in structure to disengage, so the connection reliability is relatively low. Utility Model Content

[0004] The embodiment of the utility model provides an engine maintenance cover installation structure, which aims to ensure the connection reliability of the maintenance cover while improving the convenience of disassembly and assembly of the maintenance cover.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: in the first aspect, an engine maintenance cover plate installation structure is provided, comprising a bottom guard plate and a cover plate; wherein, the bottom guard plate is connected to the bottom of the engine and is provided with an inspection window, and a first connection part and a second connection part are provided on the bottom guard plate, and the first connection part and the second connection part are respectively located on both sides of the inspection window; the cover plate is provided with a third connection part, and the third connection part is detachably connected to the first connection part and forms a rotational fit, and a fastener is passed through a side of the cover plate away from the third connection part, and the fastener is detachably connected to the second connection part.

[0006] In combination with the first aspect, in a possible implementation, the bottom guard plate has a cavity recessed toward the engine side, and an inspection window is opened on the bottom wall of the cavity; wherein, the axial direction of the rotational fit is parallel to the bottom wall of the cavity, and the inspection window is sealed when the cover plate is flipped over and embedded in the cavity.

[0007] In some embodiments, a plurality of mounting grooves are spaced apart on the cavity wall of the concave cavity, and a socket is provided on the same side wall of each mounting groove, and the sockets together form a first connection portion, and the third connection portion includes a plurality of pins coaxially arranged on the edge of the cover plate, and each pin is respectively plugged into each socket one by one to form a rotational fit.

[0008] Exemplarily, a first folded edge is provided on the circumferential edge of the cover plate, and the first folded edge abuts against the bottom wall of the cavity.

[0009] For example, a plurality of support ribs are spaced apart on the first folded edge, and each support rib abuts against the bottom wall of the cavity.

[0010] In combination with the first aspect, in a possible implementation, the window boundary of the inspection window is provided with a second folded edge, and the second folded edge protrudes from the bottom wall of the cavity; wherein, a plurality of limiting ribs are provided on the first folded edge and / or the second folded edge, and the plurality of limiting ribs are distributed at intervals along the circumference of the inspection window, and each limiting rib is supported between the first folded edge and the second folded edge.

[0011] In some embodiments, a clamping hole is provided on the bottom wall of the cavity, the clamping hole forms the second connecting portion, and one end of the fastener passes through the clamping hole and forms a clamping fit with the clamping hole.

[0012] Exemplarily, a boss is provided on the bottom wall of the cavity, and a locking hole is formed on the boss; a receiving groove recessed toward the interior of the cavity is provided on the cover plate, and a through hole is formed at the bottom of the receiving groove; wherein the fastener passes through the through hole and is engaged with the locking hole, and the bottom of the receiving groove abuts against the surface of the boss.

[0013] For example, at least one introduction slot is provided on the bottom guard plate, and at least one guide plug plate is provided on the cover plate, and the at least one guide plug plate is plugged into the at least one introduction slot accordingly.

[0014] The beneficial effect of the engine maintenance cover installation structure provided by the utility model is that compared with the prior art, the engine maintenance cover installation structure of the utility model, one side of the cover is rotatably connected to the first connection part of the bottom guard plate located on the side of the inspection window through the third connection part, which can form a constraint on the cover plate in any rotation radial direction, and on this basis, the fastener on the other side of the cover plate is fixed to the second connection part on the bottom guard plate, thereby limiting the rotational freedom of the cover plate, and can ensure the connection reliability between the cover plate and the bottom guard plate. When the engine needs to be repaired, it is only necessary to remove the fastener from the second connection part, and then rotate the cover plate to expose the inspection window, and the cover plate can also be removed to prevent the cover plate from affecting the operation. The disassembly and assembly are convenient and labor-saving, which can improve the engine maintenance efficiency and save work time.

[0015] In a second aspect, an embodiment of the utility model further provides a vehicle, comprising the above-mentioned engine maintenance cover installation structure.

[0016] Compared with the prior art, the vehicle provided by the utility model adopts the above-mentioned engine maintenance cover installation structure. The cover is based on the rotational connection between the third connecting part and the first connecting part and the fastening connection between the fastener and the second connecting part, which can ensure the reliability of the cover connection. When the engine needs to be repaired, it is only necessary to remove the fastener from the second connecting part, and then rotate the cover to expose the inspection window. The cover can also be removed to prevent the cover from affecting the operation. The disassembly and assembly are convenient and labor-saving, which can improve the engine maintenance efficiency and save work time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A three-dimensional structural schematic diagram of an engine maintenance cover installation structure (cover open) provided by an embodiment of the utility model;

[0018] Figure 2 A front view structural schematic diagram of an engine maintenance cover installation structure (cover closed) provided by an embodiment of the utility model;

[0019] Figure 3 For along Figure 2 Schematic diagram of the cross-section structure along the AA line;

[0020] Figure 4 For along Figure 2 Schematic diagram of the cross-section structure along the BB line;

[0021] Figure 5 This is a schematic diagram of the axial structure of the concave cavity area on the bottom guard plate used in the embodiment of the utility model;

[0022] Figure 6 for Figure 5 A schematic diagram of the front view structure of

[0023] Figure 7 for Figure 5 A schematic diagram of the local enlarged structure at C in the middle;

[0024] Figure 8 A schematic diagram of the three-dimensional structure of the cover plate used in the embodiment of the utility model;

[0025] Fig. 9 for Figure 8 Schematic diagram of the local enlarged structure at point D in the middle.

[0026] In the figure: 10, bottom guard plate; 100, inspection window; 11, concave cavity; 111, clamping hole; 112, boss; 12, mounting groove; 121, plug hole; 13, second folded edge; 131, limiting rib; 14, guide groove; 20, cover plate; 21, latch; 22, first folded edge; 221, supporting rib; 23, accommodating groove; 231, through hole; 24, guide plug plate; 30, fastener. DETAILED DESCRIPTION

[0027] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0028] It should be noted that when an element is referred to as being "disposed on" another element, it may be directly on the other element or indirectly on the other element. It should be understood that the terms "upper", "lower", "top", "bottom", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. The terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0029] Please also read Figures 1 to 4 The engine maintenance cover plate installation structure provided by the utility model is now described. The engine maintenance cover plate installation structure comprises a bottom guard plate 10 and a cover plate 20; wherein, the bottom guard plate 10 is connected to the bottom of the engine and is provided with an inspection window 100, and a first connection part and a second connection part are provided on the bottom guard plate 10, and the first connection part and the second connection part are respectively located on both sides of the inspection window 100; the cover plate 20 is provided with a third connection part, and the third connection part is detachably connected to the first connection part and forms a rotational fit, and a fastener 30 is penetrated on the side of the cover plate 20 away from the third connection part, and the fastener 30 is detachably connected to the second connection part; the cover plate 20 opens or covers the inspection window 100 based on the rotational fit.

[0030] It should be noted that, in the present embodiment, the first connection portion and the third connection portion are connected to form a rotational fit, and in order to facilitate the disassembly of the cover plate 20, the rotational fit between the two can adopt a shaft and hole plug-in structure, and the shaft and the hole are axially plugged to form a rotational fit, and the cover plate 20 can be removed after the shaft is pulled out of the hole; based on the rotational fit, the cover plate 20 can be constrained in any radial direction of the axis. Compared with the conventional cover plate 20 and the bottom guard plate 10 that can only form a one-way constraint using a plug-in structure, the fastener 30 on the other side of the cover plate 20 is fixed to the second connection portion to improve the connection reliability of the cover plate 20, especially to avoid the situation where the cover plate 20 is bent due to water erosion or resistance when the vehicle is wading, thereby causing the connection on the plug-in side to fall off.

[0031] In this embodiment, the fastener 30 can specifically be a buckle such as a mushroom nail, and the second connecting part can specifically be a through hole through which a buckle-connecting end suitable for the buckle passes to form a buckle; the fastener 30 can also be a bolt that is directly threaded and fixed to the second connecting part; of course, considering that bolts are easy to loosen during long-term bumps and vibrations of the vehicle, the fastener 30 is preferably fixed to the second connecting part by a buckle.

[0032] It should be understood that when performing engine maintenance, the fastener 30 can be directly removed and the cover 20 can be rotated to expose the inspection window 100. If the cover 20 needs to be maintained, the rotational fit between the third connection part and the first connection part can also be released to completely remove the cover 20. In addition, the rotational axis of the rotational fit between the third connection part and the first connection part can be parallel to the bottom guard plate 10, thereby making the cover 20 present an upside-down flipping switch mode, and the rotational axis of the rotational fit between the third connection part and the first connection part can also be perpendicular to the bottom guard plate 10, thereby making the cover 20 present a horizontal swinging switch mode. Of course, considering that the latter, i.e., the horizontal swinging rotational fit structure requires reliable constraint of the third connection part and the second connection part in the rotational axis, this will increase the complexity of disassembly of the cover 20 to a certain extent, it is preferred to adopt the former, i.e., the up and down swinging rotational fit structure of the cover 20.

[0033] Compared with the prior art, the engine maintenance cover installation structure provided in the present embodiment is rotatably connected to the first connection part of the bottom guard plate 10 located on the side of the inspection window 100 on one side of the cover plate 20 through the third connection part, which can form a constraint on the cover plate 20 in any rotation radial direction. On this basis, the fastener 30 on the other side of the cover plate 20 is fixed to the second connection part on the bottom guard plate 10, thereby limiting the rotational freedom of the cover plate 20 and ensuring the reliability of the connection between the cover plate 20 and the bottom guard plate 10. When the engine needs to be repaired, it is only necessary to remove the fastener 30 from the second connection part, and then rotate the cover plate 20 to expose the inspection window 100. The cover plate 20 can also be removed to prevent the cover plate 20 from affecting the operation. The disassembly and assembly are convenient and labor-saving, which can improve the engine maintenance efficiency and save work time.

[0034] In some embodiments, see Figures 1 to 4 The bottom guard plate 10 has a cavity 11 recessed toward the engine side, and an inspection window 100 is opened on the bottom wall of the cavity 11; wherein, the axial direction of the rotational fit is parallel to the bottom wall of the cavity 11, and the inspection window 100 is covered when the cover plate 20 is flipped and embedded in the cavity 11.

[0035] By setting the concave cavity 11, the cover plate 20 can be embedded, so as to avoid the cover plate 20 protruding from the surface of the bottom guard plate 10 and affecting the flatness of the bottom guard plate 10. At the same time, the rotation axis of the rotational cooperation between the third connection part and the first connection part is parallel to the cavity bottom of the concave cavity 11, so that the cavity wall of the concave cavity 11 can be used to constrain the cover plate 20, so as to avoid the cover plate 20 shaking along its rotation axis and causing the rotational cooperation to fail, thereby improving the connection reliability of the cover plate 20; when the engine needs to be repaired, the fastener 30 can be removed to swing the cover plate 20 downward, and after the cover plate 20 is completely separated from the concave cavity 11, the rotational cooperation relationship between the third connection part and the first connection part can be released along the rotational axis of the rotational cooperation, and the operation is simple and convenient.

[0036] As a specific implementation of the above-mentioned rotational fit, please combine Figures 5 to 9 It is understood that a plurality of mounting grooves 12 are spaced apart on the cavity wall of the concave cavity 11, and a socket 121 is provided on the same side wall of each mounting groove 12, and each socket 121 together forms a first connection portion, and a third connection portion includes a plurality of pins 21 coaxially arranged on the edge of the cover plate 20, and each pin 21 is respectively plugged into each socket 121 one by one to form a rotational fit.

[0037] The axial dimension of the mounting groove 12 along the insertion hole 121 should be greater than the axial length of the pin 21, thereby ensuring that when the cover plate 20 is disassembled and assembled, the pin 21 can first enter the mounting groove 12, and then move along its axial direction so that each pin 21 is correspondingly inserted into the corresponding insertion hole 121, thereby forming a rotational fit. On this basis, when the cover plate 20 is embedded in the concave cavity 11, the cavity wall of the concave cavity 11 can be used to limit the axial movement freedom of the cover plate 20 along the pin 21, thereby preventing the pin 21 from detaching from the insertion hole 121 and causing the rotational fit side connection of the cover plate 20 to fail. Not only is the connection reliability high, but the disassembly and assembly of the cover plate 20 can also be facilitated.

[0038] Please note that Figure 4 and Figure 8 The circumferential edge of the cover plate 20 is provided with a first folded edge 22, and the first folded edge 22 abuts against the bottom wall of the cavity 11. The first folded edge 22 is pressed against the bottom of the cavity 11 to ensure that the cover plate 20 completely covers the inspection window 100, and the first folded edge 22 supports the surrounding edges of the cover plate 20, which can improve the structural strength and anti-collision ability of the cover plate 20 itself on the one hand, and improve the connection reliability of the cover plate 20 on the other hand.

[0039] like Figure 8 and Fig. 9As shown, a plurality of support ribs 221 are spaced apart on the first folded edge 22, and each support rib 221 abuts against the bottom wall of the cavity 11. By abutting the support ribs 221 distributed on the first folded edge 22 along the circumference of the inspection window 100 against the bottom of the cavity 11, the cover plate 20 can be stably supported, and the situation that the first folded edge 22 and the bottom of the cavity 11 cannot be tightly abutted due to local unevenness can be avoided, thereby improving the connection stability of the cover plate 20.

[0040] For some possible implementations, see Figures 4 to 6 The window boundary of the inspection window 100 is provided with a second folded edge 13, and the second folded edge 13 protrudes from the bottom wall of the cavity 11; wherein, a plurality of limiting ribs 131 are provided on the first folded edge 22 and / or the second folded edge 13, and the plurality of limiting ribs 131 are distributed at intervals along the circumference of the inspection window 100, and each limiting rib 131 is supported between the first folded edge 22 and the second folded edge 13.

[0041] The second folded edge 13 can be used to improve the window boundary structural strength of the inspection window 100, and to avoid the deformation of the inspection window 100 and the unstable connection of the cover plate 20. On this basis, limiting ribs 131 are provided on the side wall of the first folded edge 22 facing the first folded edge 22 or on the side wall of the second folded edge 13 facing the first folded edge 22 or on both. The limiting ribs 131 on the first folded edge 22 abut against the second folded edge 13, and the limiting ribs 131 on the second folded edge 13 abut against the first folded edge 22, so that a tightly nested connection structure is formed between the first folded edge 22 and the second folded edge 13 in an annular manner, thereby establishing a constraint relationship between the cover plate 20 and the bottom guard plate 10 in any direction parallel to the plate surface of the bottom guard plate 10, completely avoiding the risk of connection failure due to shaking of the cover plate 20, and improving the connection reliability and stability of the cover plate 20.

[0042] Alternatively, see Figure 3 and Figure 5 In this embodiment, a clamping hole 111 is provided on the bottom wall of the cavity 11, and the clamping hole 111 forms a second connection portion, and one end of the fastener 30 passes through the clamping hole 111 and forms a clamping fit with the clamping hole 111. The fastener 30 can be a mushroom-shaped buckle, one end of which passes through the clamping hole 111 and clamps the edge of the clamping hole 111. The cover plate 20 can be flipped by simply pulling out the fastener 30, which is convenient to operate and is conducive to improving the efficiency of disassembly and assembly. In addition, compared with the method of using threaded connectors, it can avoid the risk of loose connection due to vehicle bumps and vibrations, and improve the connection reliability.

[0043] It should be noted that a boss 112 is provided on the bottom wall of the above-mentioned cavity 11, and a locking hole 111 is provided on the boss 112; a receiving groove 23 recessed toward the inside of the cavity 11 is provided on the cover plate 20, and a through hole 231 is provided at the bottom of the receiving groove 23; wherein the fastener 30 passes through the through hole 231 and is engaged with the locking hole 111, and the bottom of the receiving groove 23 abuts against the surface of the boss 112.

[0044] The boss 112 is abutted against the bottom of the receiving groove 23 to limit the flipping limit position of the cover 20 when it is closed. On this basis, the fastener 30 is passed through the through hole 231 and the clamping hole 111 to form a fastening force, thereby improving the connection stability of the cover 20; in addition, the disassembly and assembly operating end of the fastener 30 can be embedded in the receiving groove 23, thereby preventing the end of the fastener 30 from protruding from the surface of the cover 20, which can reduce the risk of the fastener 30 being damaged by collision.

[0045] In order to facilitate the quick alignment of the fastener 30 with the second connecting portion when installing the cover plate 20, see Figure 6 and Figure 8 , at least one introduction slot 14 is provided on the bottom guard plate 10, and at least one guide plug plate 24 is provided on the cover plate 20, and at least one guide plug plate 24 is plugged into at least one introduction slot 14. Specifically, the bottom guard plate 10 has an introduction slot 14 on both sides of the inspection window 100, and two guide plug plates 24 are provided on the cover plate 20. When the cover plate 20 is closed, the two guide plug plates 24 are respectively inserted into one of the introduction slots 14, thereby forming a motion guide for both sides of the guide plate, avoiding the situation that the fastener 30 deviates from the second connection part due to the tilt of the cover plate 20, and then the fastener 30 cannot be smoothly connected with the second connection part, thereby improving the installation convenience and efficiency of the cover plate 20.

[0046] Based on the same inventive concept, an embodiment of the present application also provides a vehicle, including the above-mentioned engine maintenance cover installation structure.

[0047] Compared with the prior art, the vehicle provided by the utility model adopts the above-mentioned engine maintenance cover installation structure. The cover 20 is based on the rotational connection between the third connection part and the first connection part, and the fastening connection between the fastener 30 and the second connection part is coordinated, which can ensure the connection reliability of the cover 20. When the engine needs to be repaired, it is only necessary to remove the fastener 30 from the second connection part, and then rotate the cover 20 to expose the inspection window 100. The cover 20 can also be removed to prevent the cover 20 from affecting the operation. The disassembly and assembly is convenient and labor-saving, which can improve the engine maintenance efficiency and save work time.

[0048] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. The engine maintenance cover installation structure is characterized by: include: A bottom guard plate (10) is connected to the bottom of the engine and is provided with an inspection window (100), wherein a first connection portion and a second connection portion are provided on the bottom guard plate (10), and the first connection portion and the second connection portion are respectively located on two sides of the inspection window (100); The cover plate (20) is provided with a third connection portion, the third connection portion is detachably connected to the first connection portion and forms a rotational fit, and a fastener (30) is passed through a side of the cover plate (20) away from the third connection portion, and the fastener (30) is detachably connected to the second connection portion.

2. The engine maintenance cover installation structure according to claim 1, characterized in that: The bottom guard plate (10) has a cavity (11) that is recessed toward the engine side, and the inspection window (100) is opened on the bottom wall of the cavity (11); wherein the axial direction of the rotational fit is parallel to the bottom wall of the cavity (11), and the inspection window (100) is covered when the cover plate (20) is turned over and embedded in the cavity (11).

3. The engine maintenance cover installation structure according to claim 2, characterized in that: A plurality of mounting grooves (12) are spaced apart on the cavity wall of the concave cavity (11), and a plug hole (121) is provided on the same side groove wall of each mounting groove (12), and each of the plug holes (121) together forms the first connection part, and the third connection part comprises a plurality of latches (21) coaxially arranged on the edge of the cover plate (20), and each of the latches (21) is plugged into each of the plug holes (121) in a one-to-one correspondence to form the rotational fit.

4. The engine maintenance cover installation structure according to claim 2, characterized in that: The circumferential edge of the cover plate (20) is provided with a first folded edge (22), and the first folded edge (22) abuts against the bottom wall of the cavity (11).

5. The engine maintenance cover installation structure according to claim 4, characterized in that: A plurality of support ribs (221) are spaced apart on the first folded edge (22), and each of the support ribs (221) abuts against the bottom wall of the cavity (11).

6. The engine maintenance cover installation structure according to claim 4, characterized in that: The window boundary of the inspection window (100) is provided with a second folded edge (13), and the second folded edge (13) protrudes from the bottom wall of the cavity (11); wherein a plurality of limiting ribs (131) are provided on the first folded edge (22) and / or the second folded edge (13), and the plurality of limiting ribs (131) are distributed at intervals along the circumference of the inspection window (100), and each of the limiting ribs (131) is supported between the first folded edge (22) and the second folded edge (13).

7. The engine maintenance cover installation structure according to claim 2, characterized in that: A clamping hole (111) is provided on the bottom wall of the cavity (11), the clamping hole (111) forming the second connecting portion, and one end of the fastener (30) passes through the clamping hole (111) and forms a clamping fit with the clamping hole (111).

8. The engine maintenance cover installation structure according to claim 7, characterized in that: A boss (112) is provided on the bottom wall of the cavity (11), and the boss (112) is provided with the locking hole (111); the cover plate (20) is provided with a receiving groove (23) which is recessed toward the inside of the cavity (11), and a through hole (231) is provided at the bottom of the receiving groove (23); wherein the fastener (30) passes through the through hole (231) and is locked with the locking hole (111), and the bottom of the receiving groove (23) is in contact with the surface of the boss (112).

9. The engine maintenance cover installation structure according to any one of claims 1 to 8, characterized in that: At least one introduction groove (14) is provided on the bottom guard plate (10), and at least one guide plug plate (24) is provided on the cover plate (20), and at least one guide plug plate (24) is correspondingly plugged into at least one introduction groove (14).

10. A vehicle, characterized in that It comprises an engine maintenance cover plate mounting structure as described in any one of claims 1 to 9.

Images