Fender fastening assembly and vehicle

Abstract

The utility model discloses a kind of guard plate fastening assembly and vehicle, the guard plate fastening assembly is used to fix guard plate in body to be installed, and the guard plate fastening assembly includes: fastening bolt, gasket compression ring and sheath;The fastening bolt includes the bolt head and bolt stem portion connected;At least part of the gasket compression ring is clamped between the bolt head and the body to be installed, the bolt stem portion is sequentially arranged in the gasket compression ring, the guard plate is connected with the body to be installed;The sheath is detachably connected to the outside of the gasket compression ring.The guard plate fastening assembly of the utility model embodiment, bolt head can be protected by sheath and gasket compression ring, reduce the risk that fastening bolt is damaged or fractured due to impact, at the same time, sheath and gasket compression ring can be detached, so that sheath can be quickly replaced when damaged.

Description

Technical Field

[0001] This utility model relates to the field of vehicle chassis technology, and in particular to a protective plate fastening assembly and a vehicle. Background Technology

[0002] To meet the demands of deep off-road conditions, off-road vehicles typically have protective accessories added under systems and structures located on the chassis, such as the water tank, powertrain, and exhaust system. The most common accessory on the market is a metal skid plate, mainly made of aluminum alloy and manganese steel. However, these skid plates often undergo plastic deformation after impact, so they need to be repaired or even replaced after high-intensity off-road driving. Currently, the fasteners commonly used in mass-produced vehicles are hexagonal flange bolts, which are used to fix the aluminum alloy chassis skid plate to the bottom of the vehicle by welding nuts.

[0003] However, in this type of structure, the fastening bolts of the metal guard plate will bear the impact force during the impact, which will cause the bolt head to be damaged or even broken, making the bolt difficult to remove. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a protective plate fastening assembly, which can protect the bolt head through a protective sleeve and a gasket ring, reducing the risk of bolt head damage or breakage due to impact. At the same time, the protective sleeve and the gasket ring are detachable, so that the protective sleeve can be quickly replaced when damaged.

[0005] According to an embodiment of the present invention, a guard plate fastening assembly is used to fix a guard plate to a body to be installed, and includes: a fastening bolt, a gasket ring, and a sheath; the fastening bolt includes a bolt head and a bolt shank connected together; at least a portion of the gasket ring is sandwiched between the bolt head and the body to be installed, and the bolt shank passes through the gasket ring, the guard plate, and the body to be installed in sequence; the sheath is detachably connected to the outside of the gasket ring.

[0006] According to the protective plate fastening assembly of this utility model embodiment, when the protective plate fastening assembly connects the protective plate to the body to be installed, the bolt shank passes through the gasket pressure ring and the protective plate and is connected to the body to be installed. At the same time, the bolt head presses against the gasket pressure ring, and the sheath is sleeved on the outside of the gasket pressure ring to protect the bolt head, thereby reducing the risk of external force impact damage to the bolt head.

[0007] According to the protective plate fastening assembly of this utility model embodiment, the gasket pressure ring includes a bottom wall and a side wall. The side wall is disposed around the bottom wall and extends axially. The bottom wall and the side wall form a pressure ring groove. The bolt head is located in the pressure ring groove and the bolt shank passes through the bottom wall, the protective plate and the body to be installed. The sheath is sleeved around the side wall.

[0008] According to the protective plate fastening assembly of this utility model embodiment, the outer periphery of the side wall is provided with a first locking part, and the protective sleeve is provided with a second locking part. When the protective sleeve is sleeved and installed on the outer periphery of the side wall and rotates relative to the gasket pressure ring in a first direction, the protective sleeve and the gasket pressure ring are locked relative to each other. When the protective sleeve rotates relative to the gasket pressure ring in a second direction, the protective sleeve and the gasket pressure ring are unlocked relative to each other.

[0009] According to the protective plate fastening assembly of this utility model embodiment, the first locking part is constructed as a locking post, and the second locking part is constructed as a locking groove. The locking groove includes a first groove segment and a second groove segment connected together. One end of the first groove segment is open along the axial direction and the other end extends along the axial direction of the protective sleeve. The second groove segment and the first groove segment are bent and connected. When the protective sleeve rotates relative to the gasket pressure ring in the first direction, the locking post moves along the first groove segment to the second groove segment. When the locking post abuts against the second groove segment, the protective sleeve is locked relative to the gasket pressure ring.

[0010] According to the protective plate fastening assembly of this utility model embodiment, the second groove segment extends at an angle relative to the first groove segment toward the direction close to the protective plate.

[0011] According to the protective plate fastening assembly of this utility model embodiment, the connection between the first groove segment and the second groove segment is an arc-shaped transition connection.

[0012] According to the protective plate fastening assembly of this utility model embodiment, the second groove segment is connected to one end of the first groove segment and extends radially along the protective sleeve, and the end of the second groove segment away from the first groove segment extends toward the protective plate to form a snap-fit ​​groove.

[0013] According to the protective plate fastening assembly of this utility model embodiment, both the first locking part and the second locking part are provided in multiples, and the multiple first locking parts and the multiple second locking parts correspond to each other in a one-to-one manner.

[0014] According to the protective plate fastening assembly of this utility model embodiment, the outer peripheral wall of the protective sleeve is provided with an inclined surface, and the inclined surface is inclined outward from the side away from the object to be installed to the side close to the object to be installed.

[0015] According to the protective plate fastening assembly of this utility model embodiment, the body to be installed is provided with a nut, the bolt shank passes through the washer pressure ring and sequentially passes through the protective plate and the nut, and the bolt shank is threadedly connected to the nut to install the protective plate onto the body to be installed.

[0016] This utility model discloses a vehicle including the above-described protective plate fastening assembly.

[0017] The advantages of the vehicle described above compared to existing technologies are the same as those of the guard plate fastening assembly described above compared to existing technologies, and will not be elaborated here.

[0018] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0019] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0020] Figure 1 This is a schematic diagram of the structure of the protective plate fastening assembly bursting open according to an embodiment of this utility model;

[0021] Figure 2 This is a schematic diagram of the assembled structure of the guard plate fastening assembly according to an embodiment of the present invention. Figure 1 ;

[0022] Figure 3 This is a schematic diagram of the assembled structure of the guard plate fastening assembly according to an embodiment of the present invention. Figure 2 ;

[0023] Figure 4 This is a cross-sectional structural diagram of the guard plate fastening assembly passing through the guard plate and nut according to an embodiment of the present utility model;

[0024] Figure 5 This is an axial view of the sheath according to an embodiment of the present utility model;

[0025] Figure 6 This is an embodiment of the present utility model. Figure 5 A schematic diagram of the cross-sectional structure;

[0026] Figure 7 This is a front view of the gasket pressure ring according to an embodiment of the present invention;

[0027] Figure 8 This is a schematic diagram showing the locking post of the gasket pressure ring and the locking groove of the sheath about to lock in place according to an embodiment of the present invention;

[0028] Figure 9This is a schematic diagram showing the locking between the locking post of the gasket pressure ring and the locking groove of the sliding sleeve in an embodiment of this utility model;

[0029] Figure 10 This is a schematic diagram of another embodiment of the locking groove of the sheath in this utility model.

[0030] Figure label:

[0031] Guard plate fastening assembly 100,

[0032] Fastening bolt 1, bolt head 11, hexagonal operating groove 111, bolt shank 12, sheath 2, second locking part 21, first groove section 211, open opening 2111, second groove section 212, snap-fit ​​groove 2121, inclined surface 22, gasket pressure ring 3, bottom wall 31, connecting hole 311, side wall 32, first locking part 321, pressure ring groove 33, nut 4, guard plate 5, mounting hole 51. Detailed Implementation

[0033] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0034] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] The following is for reference. Figures 1-10 According to an embodiment of the present utility model, the protective plate fastening assembly 100 can protect the bolt head 11 through the protective sleeve 2 and the gasket pressure ring 3, reducing the risk of damage or breakage of the fastening bolt 1 due to impact. At the same time, the protective sleeve 2 and the gasket pressure ring 3 are detachable, so that the protective sleeve 2 can be quickly replaced when external force acts on the protective sleeve 2 and damages the protective sleeve 2.

[0037] like Figure 1-10 As shown, a guard plate fastening assembly 100 according to an embodiment of the present utility model is used to fix the guard plate 5 to the body to be installed, and includes: fastening bolt 1, gasket pressure ring 3 and sheath 2.

[0038] The fastening bolt 1 includes a bolt head 11 and a bolt shank 12 connected together; at least a portion of the gasket ring 3 is sandwiched between the bolt head 11 and the body to be installed; the bolt shank 12 passes through the gasket ring 3, the protective plate 5 and connects to the body to be installed in sequence; the sheath 2 is detachably connected to the outside of the gasket ring 3.

[0039] In practice, the object to be installed can be the chassis of the vehicle. The guard plate 5 is installed on the chassis of the vehicle, so that the guard plate 5 can protect the water tank, powertrain, exhaust system and other components through the bottom of the vehicle. In muddy roads or rainy days, the guard plate 5 can prevent splashed sand and mud from entering the engine compartment and keep the compartment clean.

[0040] Specifically, when the fastening bolt 1 connects the guard plate 5 to the vehicle chassis, the vehicle is easily subjected to forces in the X and Y directions during operation. Over time, this can cause the bolt head 11 of the fastening bolt 1 to be damaged or broken due to impact, making it inconvenient to connect or remove the guard plate 5. However, the guard plate fastening assembly 100 connects the guard plate 5 to the vehicle chassis. The guard plate fastening assembly 100 includes a gasket pressure ring 3 and a protective sleeve 2. For example, the gasket pressure ring 3 has a connecting hole 311, and the guard plate 5 has an installation... Hole 51, the bolt shank 12 of the fastening bolt 1 passes through the connecting hole 311 and the mounting hole 51 to connect to the chassis of the vehicle. If the chassis is provided with a threaded hole that mates with the fastening bolt 1, that is, the bolt shank 12 of the fastening bolt 1 passes through the connecting hole 311 and the mounting hole 51, and then connects to the threaded hole of the chassis and locks it, thereby connecting the guard plate 5 to the chassis of the vehicle. At the same time, the bolt head 11 and the washer ring 3 press against each other axially. The washer ring 3 can be used to connect the protective sleeve 2, thereby realizing the protection of the bolt head 11 by the protective sleeve 2.

[0041] Furthermore, the inner diameter of the sleeve 2 is larger than the outer diameter of the gasket ring 3. The sleeve 2 is detachably connected to the outer circumference of the gasket ring 3. If the sleeve 2 rotates relative to the gasket ring 3, it can be locked or disassembled with the gasket ring 3, thereby protecting the bolt head 11. When the vehicle is moving, there will be a force along the X or Y direction of the vehicle. When the force acts on the sleeve 2, the sleeve 2 can better protect the bolt head 11 and prevent the force from acting directly on the bolt head 11. The sleeve 2 and the gasket ring 3 are set to be detachable. When the sleeve 2 is damaged under the action of external force, it is easy to remove the sleeve 2 and replace it with a new sleeve 2, so that the bolt head 11 can continue to be protected by the new sleeve 2, thereby improving the service life of the fastening bolt 1.

[0042] In some embodiments, the gasket retaining ring 3 includes a bottom wall 31 and a side wall 32. The side wall 32 is disposed around the bottom wall 31 and extends axially. The bottom wall 31 and the side wall 32 form a retaining ring groove 33. The bolt head 11 is located in the retaining ring groove 33 and the bolt shank 12 passes through the bottom wall 31, the protective plate 5 and the body to be installed. The sheath 2 is sleeved around the side wall 32.

[0043] Reference Figure 1 and Figure 4As shown, the bottom wall 31 of the gasket ring 3 is circular and has a connecting hole 311. The outer periphery of the bottom wall 31 has a side wall 32 extending axially. When the bolt shank 12 of the fastening bolt 1 passes through the bolt hole of the gasket ring 3 and the protective plate 5 and is connected to the chassis of the vehicle, the bolt head 11 presses against the bottom wall 31 of the gasket ring 3 axially. At the same time, the side wall 32 of the gasket ring 3 can provide initial protection to the outer periphery of the bolt head 11. After the sheath 2 is connected to the side wall 32 of the gasket ring 3, the sheath 2 and the side wall 32 of the gasket ring 3 jointly protect the bolt head 11, thereby further improving the protection effect on the bolt head 11 of the fastening bolt 1.

[0044] Therefore, by setting the gasket pressure ring 3 to include a bottom wall 31 and a side wall 32, the bolt head 11 can not only press against the bottom wall 31 of the gasket pressure ring 3 axially, but also the main stress point of the bolt head 11 is the position where the bolt head 11 presses against the guard plate 5 and the bottom wall 31. Thus, the structural strength at the stress point is improved by the combination of the bottom wall 31 and the guard plate 5, and the reliability of the fastening bolt 1 connection is improved. Furthermore, a pressure ring groove 33 is formed between the bottom wall 31 and the side wall 32. The bolt head 11 is located in the pressure ring groove 33 and can be protected by the side wall 32. At the same time, the sleeve 2 is fitted on the outer periphery of the side wall 32 of the gasket pressure ring 3 and is detachably connected to the side wall 32, which facilitates the connection of the sleeve 2. When there is an external force during vehicle operation, the external force can first act on the sleeve 2, thereby realizing the protection of the bolt head 11 by the sleeve 2.

[0045] If the length of the sleeve 2 extending axially is set to be greater than the length of the side wall 32 extending axially, and the length of the sleeve 2 extending axially is set to be greater than the length of the bolt head 11 extending axially, the side wall 32 of the gasket ring 3 can provide initial protection for the bolt head 11, the sleeve 2 can provide further protection for the bolt head 11, and the sleeve 2 and the side wall 32 of the gasket ring 3 can improve the strength of the outer periphery of the bolt head 11, which can better resist external forces, thereby better protecting the bolt head 11.

[0046] In some embodiments, the outer periphery of the sidewall 32 is provided with a first locking part 321, and the sleeve 2 is provided with a second locking part 21. When the sleeve 2 is sleeved and installed on the outer periphery of the sidewall 32 and rotates relative to the gasket ring 3 in the first direction, the sleeve 2 and the gasket ring 3 are locked relative to each other. When the sleeve 2 rotates relative to the gasket ring 3 in the second direction, the sleeve 2 and the gasket ring 3 are unlocked relative to each other.

[0047] In practice, when the sheath 2 is fitted onto the outer periphery of the side wall 32 and rotates clockwise relative to the side wall 32, the second locking part 21 of the sheath 2 and the first locking part 321 of the gasket ring 3 are locked together. When the sheath 2 rotates counterclockwise relative to the side wall 32, the sheath 2 can be released relative to the gasket ring 3. Thus, the rotational connection between the sheath 2 and the gasket ring 3 facilitates the disassembly and installation of the sheath 2. One of the first locking part 321 and the second locking part 21 can be constructed as a locking groove and the other as a protrusion, and the locking groove and the protrusion can selectively lock or unlock relative to each other.

[0048] Of course, the first locking part 321 and the second locking part 21 can also be other rotating locking or unlocking structures. By rotating the sheath 2 and the gasket ring 3 to lock or unlock, the efficiency of disassembly and installation between the sheath 2 and the gasket ring 3 can be improved.

[0049] In some embodiments, the first locking part 321 is configured as a locking pin, and the second locking part 21 is configured as a locking groove. The locking groove includes a first groove segment 211 and a second groove segment 212 connected together. One end of the first groove segment 211 is open along the axial direction and the other end extends along the axial direction of the sheath 2. The second groove segment 212 and the first groove segment 211 are bent and connected. When the sheath 2 rotates relative to the gasket ring 3 in the first direction, the locking pin moves along the first groove segment 211 to the second groove segment 212. When the locking pin presses against the second groove segment 212, the sheath 2 is locked relative to the gasket ring 3.

[0050] Combination Figure 4 , Figure 8 and Figure 9 As shown, the outer periphery of the gasket pressure ring 3 is provided with a locking post extending radially along the side wall 32, and the inner periphery of the sheath 2 is provided with a locking groove. Figure 8 and Figure 9In the locking groove, there is a first groove segment 211 extending axially. One end of the first groove segment 211 is open towards the side of the guard plate 5, and the other end of the first groove segment 211 is bent and connected to a second groove segment 212. When the sleeve 2 is fitted onto the side wall 32 of the gasket ring 3, the locking pin and the locking groove are first aligned and the sleeve 2 is moved axially relative to the gasket ring 3. That is, at this time, the locking pin can move relative to the first groove segment 211. When the locking pin and the end of the first groove segment 211 away from the open end 2111 are pressed together, the sleeve 2 is rotated, thereby moving the locking pin to the... The second groove 212. It should be noted that before the locking pin aligns with the locking groove, the fastening bolt 1 is in a pre-locked state, that is, not fully locked. When the locking pin moves into the second groove 212, the fastening bolt 1 is rotated to make it fully locked. At the same time, the fastening bolt 1 will exert a force on the gasket ring 3 toward the guard plate 5, which is equivalent to the locking pin exerting a force on the second groove 212 toward the guard plate 5 to press against the second groove 212, thereby maintaining the locking between the sleeve 2 and the gasket ring 3.

[0051] When it is necessary to disassemble the sleeve 2 and the gasket ring 3, the fastening bolt 1 can be loosened first to reduce the pressure exerted by the fastening bolt 1 on the gasket ring 3, which is equivalent to reducing the pressure of the locking pin on the locking groove. Then, the sleeve 2 can be rotated counterclockwise so that the locking pin can move more easily from the second groove section 212 to the first groove section 211. Then, the sleeve 2 can be moved out relative to the gasket ring 3 along the axial direction, thereby realizing the disassembly between the sleeve 2 and the gasket ring 3.

[0052] In some embodiments, the second groove segment 212 extends obliquely relative to the first groove segment 211 toward the direction of proximity to the guard plate 5. For example... Figure 8 and Figure 9 As shown, the included angle between the first groove segment 211 and the second groove segment 212 is an acute angle. The second groove segment 212 is inclined along the end of the first groove segment 211 and towards the side of the guard plate 5. When the sleeve 2 is fitted onto the gasket ring 3, since the second groove segment 212 is inclined towards the side closer to the guard plate 5, when the locking pin is located in the second groove segment 212, when the fastening bolt 1 is tightened, the fastening bolt 1 exerts pressure on the gasket ring 3 towards the guard plate 5, thereby exerting pressure on the second groove segment 212 towards the guard plate 5 by the locking pin, thus achieving the locking of the locking pin and the locking groove.

[0053] Furthermore, the included angle between the first groove segment 211 and the second groove segment 212 is an acute angle, which reduces the risk of the locking pin coming out of the second groove segment 212 after the locking pin is located in the second groove segment 212 and locked, and improves the reliability of the connection between the sheath 2 and the gasket pressure ring 3.

[0054] In some embodiments, the connection between the first slot segment 211 and the second slot segment 212 is an arc-shaped transition connection.

[0055] like Figure 8As shown, when the sheath 2 covers the outer periphery of the gasket ring 3, the locking pin of the gasket ring 3 is first in the first groove 211. When the locking pin is at the transition between the first groove 211 and the second groove 212, the sheath 2 is rotated clockwise. Since the connection between the first groove 211 and the second groove 212 is an arc transition connection, the locking pin can smoothly transition from the arc transition between the first groove 211 and the second groove 212 to the second groove 212, thereby improving the smoothness of the rotational connection between the sheath 2 and the gasket ring 3. At the same time, when the sheath 2 is removed, after the fastening bolt 1 is rotated and loosened, the pressure of the fastening bolt 1 on the gasket ring 3 is reduced. Then the sheath 2 can be rotated counterclockwise along the gasket ring 3, so that the locking pin can be disengaged from the second groove 212 and smoothly moved to the first groove 211. Continue to move the sheath 2 away axially to realize the disassembly between the sheath 2 and the gasket ring 3.

[0056] It should be noted that the diameter of the opening 2111 of the first groove segment 211 can be set to be larger than the diameter of other positions of the first groove segment 211, so that the locking pin can enter the first groove segment 211 more smoothly, and the locking groove of the sheath 2 and the locking pin of the gasket pressure ring 3 can be positioned more quickly.

[0057] In some embodiments, the second groove segment 212 is connected to one end of the first groove segment 211 and extends radially along the sheath 2, and the end of the second groove segment 212 away from the first groove segment 211 extends toward the sheath 5 to form a snap-fit ​​groove 2121.

[0058] Reference Figure 10 As shown, when the sheath 2 is fitted onto the outer periphery of the gasket ring 3, the locking pin of the gasket ring 3 can enter the first groove 211 axially along the opening 2111 of the first groove section 211. As the sheath 2 is rotated, the locking pin enters the second groove section 212. When the fastening bolt 1 is tightened, the fastening bolt 1 exerts a force on the gasket ring 3 toward the guard plate 5, causing the locking pin to be locked in the locking groove 2121. At this time, the locking pin can be limited in the locking groove 2121, thereby ensuring the reliability and tightness of the connection between the sheath 2 and the gasket ring 3.

[0059] When it is necessary to disassemble the sheath 2 and the gasket ring 3, the fastening bolt 1 can be loosened first to reduce the pressure of the fastening bolt 1 on the gasket ring 3. Then, when the locking pin is rotated, the locking pin can be moved from the second groove 212 to a position close to the first groove 211 under the force of rotation. As the locking pin moves from the second groove 212 to the connection with the first groove 211, the sheath 2 is then moved axially relative to the gasket ring 3, thereby disassembling the sheath 2 relative to the gasket ring 3.

[0060] In addition, the locking groove 2121 extends along the end of the second groove segment 212 toward the side closer to the guard plate 5, but the depth of the locking groove 2121 extending toward the side of the guard plate 5 is small. It can be locked in the locking groove 2121 when the locking pin is under pressure. Of course, the smaller depth setting also allows the locking pin to be easily disengaged from the locking groove 2121 when the fastening bolt 1 is loosened and the sleeve 2 needs to be rotated and the sleeve 2 is disassembled relative to the gasket ring 3. During the rotation of the sleeve 2, the locking pin can move from the second groove segment 212 to a position close to the first groove segment 211 to achieve unlocking.

[0061] In some embodiments, multiple first locking portions 321 and multiple second locking portions 21 are provided, and the multiple first locking portions 321 and multiple second locking portions 21 are matched one-to-one.

[0062] In this embodiment of the present invention, the locking grooves of the sleeve 2 can be set to three along the circumference of the sleeve 2, and the locking pins of the gasket ring 3 can also be set to three along the circumference. The three locking pins are evenly spaced along the circumference of the gasket ring 3, and the three locking grooves are evenly spaced along the circumference of the sleeve 2. Thus, when installing the sleeve 2, the first groove segment 211 of the three locking grooves of the sleeve 2 is first aligned with the three locking pins of the gasket ring 3, and the sleeve 2 is moved axially relative to the gasket ring 3, so that the locking pins enter the first groove segment 211. Then, the sleeve 2 is rotated so that the locking pins move into the second groove segment 212 of the gasket ring 3. By setting the three first locking parts 321 and the three second locking parts 21 to correspond one-to-one, the uniformity of force after the sleeve 2 and the gasket ring 3 are locked is improved, and the reliability of the sleeve 2 locking relative to the gasket ring 3 is improved, reducing the risk of the sleeve 2 loosening when subjected to forces in different directions.

[0063] Of course, in actual design, the locking groove of the sheath 2 and the locking pin of the gasket ring 3 can be set to two or four, etc., provided that replacement is convenient and the connection between the sheath 2 and the gasket ring 3 is reliable, the design can be made according to the actual situation.

[0064] In some embodiments, the outer peripheral wall of the sheath 2 is provided with an inclined surface 22, which is inclined outward from the side away from the object to be installed to the side closer to the object to be installed.

[0065] Reference Figure 4 As shown, during vehicle operation, the protective sleeve 2 is subjected to forces in different directions. When the force acts on the inclined surface 22 of the protective sleeve 2, the force is decomposed into vertical force and lateral force along the inclined surface 22, thereby greatly reducing the force on the bolt head 11 of the fastening bolt 1 due to impact, reducing the risk of damage to the protective sleeve 2, increasing the life of the fastening bolt 1, and also increasing the service life of the protective sleeve 2.

[0066] In some embodiments, the body to be installed is provided with a nut 4, the bolt shank 12 is provided with a washer ring 3 and a protective plate 5 and a nut 4 in sequence, and the bolt shank 12 is threadedly connected to the nut 4 to install the protective plate 5 onto the body to be installed.

[0067] The component to be installed can be the chassis of a vehicle, as shown in the reference. Figure 4 As shown, nut 4 can be connected to the side of the skid plate 5 closest to the vehicle chassis. Alternatively, nut 4 can be integrated with the vehicle chassis, or it can be welded to the chassis, and then the skid plate 5 can be placed on the side of nut 4 closest to the ground. Figure 4 The top is close to the ground. Figure 4 The lower part is close to the vehicle chassis; therefore, during installation, first place the guard plate 5 at the bottom of the chassis, and the guard plate 5 has mounting holes 51. Align the mounting holes 51 of the guard plate 5 with the threaded holes of the nut 4. Then align the connecting holes 311 of the gasket ring 3 with the mounting holes 51 of the guard plate 5, so that the bolt shank 12 passes through the connecting holes 311 of the gasket ring 3, the mounting holes 51 of the guard plate 5 and the threaded holes of the nut 4 in sequence, thereby connecting the guard plate 5 to the body to be installed. Of course, the chassis can also have threaded holes, then the fastening bolt 1 passes through the gasket ring 3, the guard plate 5 and the nut 4 and then connects to the threaded holes of the chassis, thereby connecting the guard plate 5 to the vehicle chassis through the guard plate fastening assembly 100.

[0068] It should be noted that when fastening bolt 1 is connected to nut 4 through washer ring 3 and guard plate 5, the fastening bolt 1 can be axially pressed against the bottom wall 31 of washer ring 3. Rotating the fastening bolt 1 will put it in a pre-locked state, i.e., not fully locked. Then, align the locking groove of sleeve 2 with the locking post of washer ring 3 and rotate it, so that the locking post of washer ring 3 is located in the second groove section 212 of the locking groove of sleeve 2. Continue rotating the fastening bolt 1 at this point. When the fastening bolt 1 is in place, it applies pressure to the bottom wall 31 of the gasket ring 3, thereby driving the locking pin of the gasket ring 3 to apply pressure to the second groove section 212, achieving the locking effect between the sleeve 2 and the gasket ring 3. That is, at this time, the Z-direction displacement freedom of the sleeve 2, the gasket ring 3, and the fastening bolt 1 along the vehicle is restricted. At the same time, due to mutual interference between the locking groove of the sleeve 2 and the locking pin, the Z-direction rotational freedom of the sleeve 2 is also restricted, thereby realizing the self-locking function and improving the locking effect between the sleeve 2 and the gasket ring 3.

[0069] In addition, the bolt head 11 of the fastening bolt 1 is provided with a hexagonal operating groove 111, which can be used to insert a tool into the hexagonal operating groove 111 and rotate the fastening bolt 1 to lock the fastening bolt 1. This utility model embodiment adopts a self-locking washer pressure ring 3, which can achieve self-locking without the need for threads or other means, preventing the sheath 2 from deflecting, displacing or falling off during driving.

[0070] Moreover, this utility model embodiment uses a 304 stainless steel gasket ring 3 and a 7075 aluminum alloy sleeve 2 as a CAE simulation case. Compared with the fastening structure without gasket ring 3 and sleeve 2, the maximum stress of the fastening bolt 1 after impact is reduced by about 45% after installing aluminum alloy sleeve 2 and gasket ring 3, which greatly reduces the risk of deformation and damage of the fastening bolt 1.

[0071] This utility model embodiment also discloses a vehicle including the aforementioned guard plate fastening assembly 100. The guard plate fastening assembly 100 can protect the bolt head 11 through the protective sleeve 2 and the gasket pressure ring 3, reducing the risk of damage or breakage of the fastening bolt 1 due to impact. At the same time, the protective sleeve 2 and the gasket pressure ring 3 are detachable, so that the protective sleeve 2 can be quickly replaced when damaged. That is, the bolt head 11 of the fastening bolt 1 is protected, improving the service life of the fastening bolt 1, thereby improving the reliability of the connection between the guard plate 5 and the vehicle chassis, and improving the protective effect of the guard plate 5 on the vehicle chassis.

[0072] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0073] Although embodiments of the present invention have been shown and described, those skilled in the art will understand 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 claims and their equivalents.

Claims

1. A shield fastening assembly (100) characterized by, The guard plate fastening assembly (100) is used to fix the guard plate (5) to the body to be installed, and includes: Fastening bolt (1), the fastening bolt (1) includes a bolt head (11) and a bolt shank (12) connected together. A gasket ring (3) is provided, at least a portion of which is sandwiched between the bolt head (11) and the body to be installed. The bolt shank (12) is sequentially passed through the gasket ring (3), the guard plate (5), and the body to be installed. Sheath (2), which is detachably connected to the outside of the gasket pressure ring (3).

2. The kick panel fastening assembly (100) of claim 1, wherein, The gasket pressure ring (3) includes a bottom wall (31) and a side wall (32). The side wall (32) is disposed around the bottom wall (31) and extends axially. The bottom wall (31) and the side wall (32) form a pressure ring groove (33). The bolt head (11) is located in the pressure ring groove (33) and the bolt shank (12) passes through the bottom wall (31), the protective plate (5) and the body to be installed. The protective sleeve (2) is fitted around the side wall (32).

3. The kick panel fastening assembly (100) of claim 2, wherein, The outer periphery of the side wall (32) is provided with a first locking part (321), and the sleeve (2) is provided with a second locking part (21). When the sleeve (2) is sleeved and installed on the outer periphery of the side wall (32) and rotates relative to the gasket ring (3) in the first direction, the sleeve (2) and the gasket ring (3) are locked relative to each other. When the sleeve (2) rotates relative to the gasket ring (3) in the second direction, the sleeve (2) and the gasket ring (3) are unlocked relative to each other.

4. The guard plate fastening assembly (100) according to claim 3, characterized in that, The first locking part (321) is constructed as a locking pin, and the second locking part (21) is constructed as a locking groove. The locking groove includes a first groove segment (211) and a second groove segment (212) connected together. One end of the first groove segment (211) is open along the axial direction and the other end extends along the axial direction of the sheath (2). The second groove segment (212) and the first groove segment (211) are bent and connected. When the sheath (2) rotates relative to the gasket pressure ring (3) in the first direction, the locking pin moves along the first groove segment (211) to the second groove segment (212). When the locking pin presses against the second groove segment (212), the sheath (2) locks relative to the gasket pressure ring (3).

5. The kick plate fastening assembly (100) of claim 4, wherein, The second groove segment (212) extends at an angle relative to the first groove segment (211) toward the direction of the guard plate (5).

6. The kick panel fastening assembly (100) of claim 4, wherein, The connection between the first slot segment (211) and the second slot segment (212) is an arc-shaped transition connection.

7. The kick panel fastening assembly (100) of claim 4, wherein, The second groove segment (212) is connected to one end of the first groove segment (211) and extends radially along the sheath (2). The end of the second groove segment (212) away from the first groove segment (211) extends toward the sheath (5) to form a snap-fit ​​groove (2121).

8. The kick panel fastening assembly (100) of claim 3, wherein, The first locking part (321) and the second locking part (21) are both provided in multiples, and the multiple first locking parts (321) and the multiple second locking parts (21) are matched one-to-one.

9. The kick panel fastening assembly (100) of claim 1, wherein, The outer peripheral wall of the sheath (2) is provided with an inclined surface (22), which is inclined outward from the side away from the object to be installed to the side close to the object to be installed.

10. The kick panel fastening assembly (100) of claim 1, wherein, The object to be installed is provided with a nut (4), the bolt shank (12) passes through the gasket ring (3) and sequentially passes through the guard plate (5) and the nut (4), the bolt shank (12) and the nut (4) are threadedly connected to each other to install the guard plate (5) onto the object to be installed.

11. A vehicle, characterized in that, Includes the guard plate fastening assembly (100) as described in any one of claims 1-10.

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