Sealing devices and vehicles

Abstract

This application provides a sealing device and a vehicle, belonging to the field of vehicle technology. The sealing device includes: a first sealing cover, a second sealing cover, and a steering bearing; the first sealing cover includes an outer cylindrical cover and an inner cylindrical cover, the outer cylindrical cover being connected to and sleeved on the outside of the inner cylindrical cover; the second sealing cover is located inside the outer cylindrical cover; the inner cylindrical cover and the second sealing cover are coaxially arranged, and the steering bearing is coaxially arranged between the inner cylindrical cover and the second sealing cover, and connected to at least one of the inner cylindrical cover and the second sealing cover. The sealing device of this application can provide bidirectional sealing for the vehicle steering mechanism, resulting in better sealing performance and avoiding frictional noise from direct metal-non-metal contact, thereby improving the vehicle's user experience and overall vehicle quality.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicles, in particular to a sealing device and a vehicle. BACKGROUND

[0002] The steering system of a vehicle is usually controlled by a driver operating a steering wheel, and the steering wheel drives a steering gear through a transmission mechanism such as a steering column and an intermediate shaft, so as to drive the wheels to steer. The steering wheel is arranged in the driver's cabin for the convenience of the driver, while the steering gear and the wheels are arranged on the chassis and in the engine compartment, i.e. outside the driver's cabin. Therefore, a hole is needed to be opened in the driver's cabin for the steering intermediate mechanism to extend out, and the diameter of the hole is relatively large to prevent the steering intermediate mechanism from interfering with the hole.

[0003] However, the hole destroys the sealing of the driver's cabin, which causes external noise, dust, etc. to invade, affects the vehicle environment, and reduces the use experience and overall quality of the vehicle. SUMMARY

[0004] The present application provides a sealing device and a vehicle, which can solve the problem that the hole for the steering intermediate mechanism to extend out causes external noise, dust, etc. to invade and affects the vehicle environment.

[0005] The technical solution is as follows:

[0006] On the one hand, a sealing device is provided, which comprises a first sealing cover, a second sealing cover and a steering bearing.

[0007] The first sealing cover comprises an outer cylinder cover portion and an inner cylinder cover portion, and the outer cylinder cover portion is connected and sleeved outside the inner cylinder cover portion; the second sealing cover is located inside the outer cylinder cover portion.

[0008] The inner cylinder cover portion and the second sealing cover are coaxially arranged, and the steering bearing is coaxially arranged between the inner cylinder cover portion and the second sealing cover and connected with at least one of the inner cylinder cover portion and the second sealing cover.

[0009] In some embodiments, the inner cylinder cover portion, the steering bearing and the second sealing cover are coaxially arranged in sequence to form a sealing channel, and the sealing channel is used for the vehicle steering mechanism to pass through.

[0010] In some embodiments, the sealing device further comprises a bearing retaining assembly, one axial end of the bearing retaining assembly is connected with the inner cylinder cover portion, the other axial end of the bearing retaining assembly is connected with the second sealing cover, and the steering bearing is fixedly arranged on the bearing retaining assembly.

[0011] In some embodiments, the bearing retaining assembly comprises a bearing retainer, the bearing retainer is cylindrical, an axial end of the bearing retainer is connected to the inner cylinder cover, and the other axial end of the bearing retainer is connected to the second sealing cover.

[0012] An inner wall of an axial middle part of the bearing retainer is provided with a positioning ring groove, and the steering bearing is embedded in the positioning ring groove.

[0013] In some embodiments, the bearing retaining assembly further comprises at least one sealing ring, the at least one sealing ring is located on the axial end of the bearing retainer, and the at least one sealing ring is in sealing contact with the vehicle steering mechanism.

[0014] In some embodiments, the bearing retaining assembly further comprises at least one sealing support, the at least one sealing support is sleeved on the axial end of the bearing retainer, an inner wall of the at least one sealing support is provided with a sealing ring groove, and the sealing ring is embedded in the sealing ring groove.

[0015] In some embodiments, an outer wall of the at least one sealing support is spaced apart from the inner wall of the bearing retainer to form an annular clamping groove, and the annular clamping groove can be clamped and connected to the inner cylinder cover and / or the second sealing cover.

[0016] In some embodiments, the first sealing cover further comprises a first assembly flange 13, and the first assembly flange 13 is connected to the axial end of the outer cylinder cover.

[0017] The second sealing cover comprises a horn-shaped part and a second assembly flange, the second assembly flange and the first assembly flange 13 are stacked and connected, the horn-shaped part axially penetrates into the outer cylinder cover, and the horn-shaped part is coaxially arranged with the inner cylinder cover.

[0018] In some embodiments, the sealing device further comprises a cylinder cover skeleton, the cylinder cover skeleton comprises a cylindrical part and a third assembly flange, and the third assembly flange is connected to the axial end of the cylindrical part.

[0019] The cylindrical part is sleeved outside the outer cylinder cover, and the third assembly flange, the first assembly flange 13 and the second assembly flange are sequentially and stacked arranged.

[0020] In another aspect, a vehicle is provided, the vehicle comprising: the sealing device, a vehicle steering mechanism and a front bumper.

[0021] The front bumper is provided with a rotating through hole, the vehicle steering mechanism is arranged in the rotating through hole, the sealing device is sleeved on the vehicle steering mechanism, and the sealing device is connected with the front bumper around the rotating through hole.

[0022] The technical scheme provided in the application has at least the following beneficial effects:

[0023] The sealing device provided in the application is suitable for sealing of a vehicle steering system, the inner cylinder cover part of the first sealing cover and the second sealing cover are coaxially arranged on the inner axis of the first sealing cover, which can provide bidirectional sealing for the vehicle steering mechanism, and the sealing effect is better; and the steering bearing is arranged between the inner cylinder cover part and the second sealing cover, the vehicle steering mechanism can be connected in the steering bearing, and the vehicle steering mechanism is indirectly connected with the first sealing cover and the second sealing cover through the steering bearing and does not directly contact, which can avoid the friction noise caused by direct contact between metal and non-metal, thereby being beneficial to improving the use experience and the overall quality of the vehicle. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical scheme in the embodiments of the application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor.

[0025] Figure 1 is a structural schematic view of the sealing device provided in the embodiments of the application;

[0026] Figure 2 is a structural schematic view of the bearing retaining assembly provided in the embodiments of the application;

[0027] Figure 3 is an exploded view of the bearing retaining assembly provided in the embodiments of the application;

[0028] Figure 4 is a cooperation schematic view of the sealing support and the sealing ring provided in the embodiments of the application;

[0029] Figure 5 is a structural sectional view of the first sealing cover provided in the embodiments of the application;

[0030] Figure 6 is a structural schematic view of the first sealing cover provided in the embodiments of the application;

[0031] Figure 7 is a structural schematic view of the second sealing cover provided in the embodiments of the application Figure 1 ;

[0032] Figure 8 is a structural schematic view of the second sealing cover provided in the embodiments of the application Figure 2 ;

[0033] Figure 9 is a structural sectional view of the second sealing cover provided in the embodiments of the application;

[0034] Figure 10 is a structural schematic diagram of a barrel cover skeleton piece provided by an embodiment of the present application;

[0035] Figure 11 is a structural schematic diagram of a vehicle steering mechanism, a sealing device and a front apron provided by an embodiment of the present application;

[0036] Figure 12 is a structural schematic diagram of a front apron provided by an embodiment of the present application;

[0037] Figure 13 is a structural schematic diagram of a vehicle steering mechanism and a sealing device provided by an embodiment of the present application.

[0038] The reference signs in the drawings represent the following respectively:

[0039] 100, sealing device; 1001, sealing channel;

[0040] 200, vehicle steering mechanism; 2001, in-vehicle end; 2002, out-of-vehicle end;

[0041] 300, front apron;

[0042] 1, first sealing cover;

[0043] 11, outer barrel cover part; 12, inner barrel cover part; 121, first clamping protruding ring; 13, first assembly flange; 1311, first positioning hole; 1312, first assembly hole;

[0044] 2, second sealing cover;

[0045] 21, horn-shaped part; 211, second clamping protruding ring; 22, second assembly flange; 221, annular sealing rib; 222, positioning column; 223, second assembly hole;

[0046] 3, steering bearing;

[0047] 4, bearing retaining assembly;

[0048] 41, bearing retainer; 411, positioning ring groove; 412, second annular clamping part; 42, sealing ring; 43, sealing support; 431, first annular clamping part; 432, sealing ring groove; 433, clamping flange; 44, annular clamping groove;

[0049] 5, barrel cover skeleton piece;

[0050] 51, cylindrical part; 52, third assembly flange; 521, third assembly hole; 522, second positioning hole;

[0051] 6, steering through hole;

[0052] 7, connecting screw. DETAILED DESCRIPTION

[0053] The exemplary embodiments will be described in detail herein with reference to the accompanying drawings. In the following description, unless otherwise indicated, like numbers in the different drawings represent similar or identical elements. The following exemplary embodiments are described in enough detail to enable those skilled in the art to practice the application. Additionally, the description itself is an example and is not intended to limit the scope of the application, as claimed.

[0054] In the description of the present application, it needs to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the drawings, and are only used for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. Figure 1 The orientation or positional relationship shown is only for the purpose of facilitating the description of the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0055] It should be understood that in the present application, "electrically connected" can be understood as physical contact and electrical conduction of components; it can also be understood as a form of connection between different components in a circuit structure through a physical circuit such as a copper foil or a wire on a printed circuit board (PCB) that can transmit electrical signals. "Communication connection" can refer to electrical signal transmission, including wireless communication connection and wired communication connection. Wireless communication connection does not require a physical medium and does not belong to a connection relationship that defines the structure of the product. "Connection" and "connected" can refer to a mechanical connection relationship or a physical connection relationship, that is, A and B are connected or A and B are connected, which means that there is a fastening member (such as a screw, a bolt, a rivet, etc.) between A and B, or A and B are in contact with each other and A and B are difficult to separate.

[0056] Unless otherwise defined, all technical terms used in the embodiments of the present application have the same meanings as generally understood by those skilled in the art.

[0057] In order to make the purposes, technical solutions and advantages of the present application clearer, the embodiments of the present application will be further described in detail below with reference to the drawings.

[0058] In one aspect, in combination with Figure 1 As shown in the drawings, the present embodiment provides a sealing device 100, which comprises a first sealing cover 1, a second sealing cover 2 and a steering bearing 3.

[0059] The first sealing cover 1 comprises an outer cylinder cover part 11 and an inner cylinder cover part 12, the outer cylinder cover part 11 is connected and sleeved outside the inner cylinder cover part 12; the second sealing cover 2 is located inside the outer cylinder cover part 11; the inner cylinder cover part 12 and the second sealing cover 2 are coaxially arranged, and the steering bearing 3 is coaxially arranged between the inner cylinder cover part 12 and the second sealing cover 2 and connected with at least one of the inner cylinder cover part 12 and the second sealing cover 2.

[0060] The sealing device 100 of the embodiment is suitable for sealing of a vehicle steering system, the inner cylinder cover part 12 of the first sealing cover 1 and the second sealing cover 2 are coaxially arranged on the inner axis of the first sealing cover 1, and bidirectional sealing can be provided for the vehicle steering mechanism 200, and the sealing effect is better.

[0061] In addition, the steering bearing 3 is arranged between the inner cylinder cover part 12 and the second sealing cover 2, the vehicle steering mechanism 200 can be inserted in the steering bearing 3, the vehicle steering mechanism 200 is indirectly connected with the first sealing cover 1 and the second sealing cover 2 through the steering bearing 3 and does not directly contact, so that the friction noise caused by direct contact between metal and non-metal can be avoided, thereby facilitating improvement of the use experience and the overall quality of the vehicle.

[0062] In some possible implementation manners, the first sealing cover 1 and the second sealing cover 2 are both made of rubber material and have good stretchability and deformability, and can withstand a certain pulling (can meet the movement of the vehicle steering mechanism 200) and will not fall off.

[0063] In another possible implementation manner, the steering bearing 3 is a sealed bearing, which is a rolling bearing with a sealing structure. The sealing structure is usually installed on both sides of the bearing and is used to prevent lubricant leakage and external contaminants (such as dust, moisture, impurities, etc.) from entering the inside of the bearing. In turn, by using the sealing structures on both sides of the steering bearing 3, axial sealing of the sealing device 100 of the embodiment can be achieved, and dust, moisture and other impurities can be prevented from entering the vehicle through the steering bearing 3.

[0064] For example, the steering bearing 3 can be coaxially connected with the inner cylinder cover part 12, and the inner cylinder cover part 12 is coaxially connected with the second sealing cover 2. For another example, the steering bearing 3 can be coaxially connected with the second sealing cover 2, and the inner cylinder cover part 12 is coaxially connected with the second sealing cover 2. For still another example, the steering bearing 3 can be coaxially connected with the inner cylinder cover part 12 and the second sealing cover 2 respectively.

[0065] In some possible implementation manners, with reference to Figure 1As shown, the outer cylinder cover part 11 and the inner cylinder cover part 12 are both cylindrical, but the diameter of the inner cylinder cover part 12 is smaller than that of the outer cylinder cover part 11, and the sealing passage 1001 for the vehicle steering mechanism 200 to pass through is located in the inner cylinder cover part 12. The outer cylinder cover part 11 and the inner cylinder cover part 12 are connected together at one end in the axial direction by a U-shaped connecting structure, so that the inner cylinder cover part 12 can be deformed relative to the outer cylinder cover part 11 to adapt to the movement of the vehicle steering mechanism 200.

[0066] In combination Figure 1 As shown, in some embodiments, the inner cylinder cover part 12, the steering bearing 3 and the second sealing cover 2 are coaxially arranged in sequence to form a sealing passage 1001 for the vehicle steering mechanism 200 to pass through.

[0067] Through the above arrangement, the inner cylinder cover part 12, the steering bearing 3 and the second sealing cover 2 are coaxially arranged in sequence to form a sealing passage 1001, and the vehicle steering mechanism 200 can pass through the sealing passage 1001 to connect the steering mechanism inside the vehicle and the steering mechanism outside the vehicle.

[0068] Exemplarily, the inner cylinder cover part 12, the steering bearing 3 and the second sealing cover 2 can be directly sealed and connected, or indirectly sealed and connected, and the present embodiment does not limit this.

[0069] In some possible implementations, referring to Figure 1 , Figure 11 and Figure 13 As shown, the first sealing cover 1 is located at the top, and the second sealing cover 2 is located at the bottom, the top corresponding to the in-vehicle end 2001 of the vehicle steering mechanism 200, and the bottom corresponding to the out-of-vehicle end 2002 of the vehicle steering mechanism 200.

[0070] In combination Figure 1 , Figure 2 and Figure 3 As shown, in some embodiments, the sealing device 100 further comprises a bearing retaining assembly 4, one end of the bearing retaining assembly 4 being connected to the inner cylinder cover part 12, the other end of the bearing retaining assembly 4 being connected to the second sealing cover 2, and the steering bearing 3 being fixedly arranged on the bearing retaining assembly 4.

[0071] Through the above arrangement, the steering bearing 3 can be fixed by the bearing retaining assembly 4, and the bearing retaining assembly 4 is connected to the inner cylinder cover part 12 and the second sealing cover 2 respectively, so as to realize the sealed connection of the steering bearing 3 with the first sealing cover 1 and the second sealing cover 2.

[0072] Exemplarily, the outer diameter of the bearing retaining assembly 4 is smaller than the inner diameter of the outer cylinder cover part 11, so that the bearing retaining assembly 4 can drive the steering bearing 3 to move with the movement of the vehicle steering mechanism 200, so as to maintain the sealing of the vehicle steering mechanism 200.

[0073] Combination Figure 2 and Figure 3 As shown, in some embodiments, the bearing retaining assembly 4 includes a bearing retainer 41, which is cylindrical. One axial end of the bearing retainer 41 is connected to the inner cylinder cover 12, and the other axial end of the bearing retainer 41 is connected to the second sealing cover 2. The inner wall of the axial middle part of the bearing retainer 41 is provided with a positioning ring groove 411, and the steering bearing 3 is embedded in the positioning ring groove 411.

[0074] With the above arrangement, the steering bearing 3 can be fixedly embedded in the positioning ring groove 411 of the bearing cage 41, and the outer ring of the steering bearing 3 is sealed and engaged with the positioning ring groove 411 to prevent gaps from appearing between the bearing cage 41 and the steering bearing 3. In addition, the bearing cage 41 is made of a rigid material, which can maintain the reliability of the sealed connection with the steering bearing 3 and prevent gaps from appearing after deformation during movement.

[0075] Among some possible implementations, refer to Figure 2 As shown, the depth of the positioning ring groove 411 is greater than or equal to the thickness of the outer ring of the steering bearing 3. When the steering bearing 3 is embedded in the positioning ring groove 411, the two end faces of the outer ring of the steering bearing 3 along the axial direction can respectively maintain a pressure seal with the corresponding ring face of the positioning ring groove 411. The two axial faces of the steering bearing 3 can be sealed by surface-to-surface contact.

[0076] Combination Figure 2 , Figure 3 and Figure 4 As shown, in some embodiments, the bearing retaining assembly 4 further includes at least one sealing ring 42, which is located on one axial end of the bearing retainer 41 and is in sealing contact with the vehicle steering mechanism 200.

[0077] To further improve the sealing effect of the sealing device 100, at least one sealing ring 42 is arranged in the shaft retaining assembly. Each sealing ring can form a sealing structure on one side of the steering bearing 3, thereby improving the sealing effect of the sealing device 100.

[0078] For example, there are two sealing rings 42, which are located on opposite sides of the steering bearing 3 along the axial direction. That is, one sealing ring 42 is located between the steering bearing 3 and the interior space of the vehicle, and the other sealing ring 42 is located between the steering bearing 3 and the exterior space of the vehicle, so that the sealing device 100 forms at least three sealing structures.

[0079] For example, the sealing ring 42 can be an O-ring, a U-ring, etc.

[0080] Combination Figure 2 , Figure 3 andFigure 4 As shown in some embodiments, the bearing retaining assembly 4 further comprises at least one sealing bracket 43, which is sleeved on one axial end of the bearing retainer 41, and the inner wall of the sealing bracket 43 is provided with a sealing ring groove 432, and the sealing ring 42 is embedded in the sealing ring groove 432.

[0081] In this embodiment, the sealing bracket 43 is used to install the sealing ring 42 in the bearing retaining assembly, which has a simple structure and is convenient to operate. The sealing ring 42 is easy to install and disassemble, which is convenient for subsequent maintenance and replacement.

[0082] For example, the number of the sealing ring 42 and the sealing bracket 43 is two, one of which is installed on the bearing retainer 41 on one axial side of the steering bearing 3 by using one sealing bracket 43, and the other is installed on the bearing retainer 41 on the other axial side of the steering bearing 3 by using the other sealing bracket 43.

[0083] In some possible implementations, the inner wall of the sealing bracket 43 is provided with a U-shaped sealing ring groove 432, and the sealing ring 42 is a U-shaped sealing ring, which is embedded in the U-shaped sealing ring groove 432, and the opening direction of the sealing ring groove 432 is parallel to the axial direction of the steering bearing 3.

[0084] For example, the opening direction of the U-shaped sealing ring groove 432 is parallel to the axial direction of the steering bearing 3 and is arranged away from the steering bearing 3. When the sealing ring 42 is embedded in the U-shaped sealing ring groove 432, the opening direction of the sealing ring 42 is parallel to the axial direction of the steering bearing 3 and is arranged away from the steering bearing 3. Therefore, the U-shaped opening of the sealing ring 42 located on the inboard side of the steering bearing 3 faces the inboard space, and the U-shaped opening of the sealing ring 42 located on the outboard side of the steering bearing 3 faces the outboard space. Therefore, the sealing effect of the U-shaped sealing ring 42 can be maximized.

[0085] In some possible implementations, referring to Figure 2 and Figure 3 As shown, the outer wall of the sealing bracket 43 is provided with a first annular clamping portion 431, and the inner wall of the bearing retainer 41 is provided with a second annular clamping portion 412, and the first annular clamping portion 431 and the second annular clamping portion 412 are clamped and connected to fix the sealing bracket 43 and the bearing retainer 41 together. For example, one of the first annular clamping portion 431 and the second annular clamping portion 412 is a ring-shaped protruding structure, and the other is a ring-shaped recess structure.

[0086] In combination with Figure 2 As shown in some embodiments, the outer wall of the at least one sealing bracket 43 and the inner wall of the bearing retainer 41 are spaced apart to form an annular clamping groove 44, which can be clamped and connected to the inner cylinder cover portion 12 and / or the second sealing cover 2.

[0087] Through the above arrangement, the inner cylinder cover part 12 and the second sealing cover 2 are clamped and fixed through the annular clamping groove 44 formed between the sealing support 43 and the bearing retainer 41, and the sealing connection of the bearing retaining assembly 4, the inner cylinder cover part 12 and the second sealing cover 2 can be realized.

[0088] Exemplarily, the number of sealing supports 43 is two, and the two sealing supports 43 are respectively located at the axial two ends of the bearing retainer 41, and form two annular clamping grooves 44 with the two ends of the bearing retainer 41 respectively, and are clamped and connected with the inner cylinder cover part 12 and the second sealing cover 2 respectively.

[0089] In some possible implementations, with reference to Figure 2 and Figure 4 It is shown that the axial one end of the sealing support 43 is provided with a clamping flange 433 arranged outwardly in the radial direction, and the clamping flange 433 is arranged at the opening of the annular clamping groove 44, which reduces the opening of the annular clamping groove 44, so that the annular clamping groove 44 is formed as an annular space with a large inner part and a small opening, which can better clamp the inner cylinder cover part 12 and the second sealing cover 2.

[0090] In combination with Figures 5 to 9 It is shown that in some embodiments, the first sealing cover 1 further comprises a first assembly flange 13 connected to the axial end of the outer cylinder cover part 11.

[0091] The second sealing cover 2 comprises a horn-shaped part 21 and a second assembly flange 22, and the second assembly flange 22 and the first assembly flange 13 are connected in a stacked manner, and the horn-shaped part 21 extends axially into the outer cylinder cover part 11 and is arranged coaxially with the inner cylinder cover part 12.

[0092] Through the above arrangement, the first sealing cover 1 and the second sealing cover 2 can be connected together in a stacked manner by using the first assembly flange 13 and the second assembly flange 22, so that the first sealing cover 1 and the second sealing cover 2 also have good sealing performance.

[0093] In some possible implementations, with reference to Figures 1 to 9 It is shown that the axial end of the inner cylinder cover part 12 towards the bearing retaining assembly 4 is provided with a first clamping flange 121, and the axial end of the horn-shaped part 21 towards the bearing retaining assembly 4 is provided with a second clamping flange 211, and the first clamping flange 121 and the second clamping flange 211 are respectively clamped with the two annular clamping grooves 44, so that the inner cylinder cover part 12 and the horn-shaped part 21 are respectively clamped and connected at the axial two ends of the bearing retaining assembly 4, and have good sealing performance.

[0094] In some possible implementations, with reference to Figure 1 , Figures 5 to 9As shown, the second assembly flange 22 is provided with at least two positioning columns 222, and the first assembly flange 13 is provided with at least two first positioning holes 1311. When the first assembly flange 13 and the second assembly flange 22 are stacked, the first positioning holes 1311 are threaded on the positioning columns 222, so as to realize assembly positioning of the first sealing cover 1 and the second sealing cover 2. For example, the number of the positioning columns 222 and the first positioning holes 1311 is three respectively, and the three positioning columns 222 and the three first positioning holes 1311 are arranged in a one-to-one circumferential interval, so as to provide accurate positioning for the first sealing cover 1 and the second sealing cover 2.

[0095] In some possible implementation manners, with reference to Figures 1 to 9 As shown, the first assembly flange 13 is provided with at least two first assembly holes 1312, and the second assembly flange 22 is provided with at least two second assembly holes 223. The first assembly holes 1312 and the second assembly holes 223 are coaxially arranged in a one-to-one correspondence, so that a bolt or the like can be threaded through the first assembly holes 1312 and the second assembly holes 223, so as to realize assembly fixation of the first sealing cover 1 and the second sealing cover 2.

[0096] In combination Figure 10 As shown, in some embodiments, the sealing device 100 further includes a cylinder cover framework 5, which includes a cylindrical portion 51 and a third assembly flange connected to an axial end of the cylindrical portion 51. The cylindrical portion 51 is sleeved outside the outer cylinder cover portion 11, and the third assembly flange, the first assembly flange 13 and the second assembly flange 22 are sequentially stacked.

[0097] Through the above arrangement, the cylinder cover framework 5 can be protected outside the outer cylinder cover portion 11 of the first sealing cover 1 by the cylindrical portion 51, so as to improve the reliability and service life of the outer cylinder cover portion 11. For example, the third assembly flange is provided with a third assembly hole 521 and a second positioning hole 522. The third assembly hole 521 is coaxially arranged in correspondence with the first assembly hole 1312 and the second assembly hole 223, and the second positioning hole 522 is coaxially arranged in correspondence with the first positioning hole 1311. The third assembly hole 521 and the second positioning hole 522 can realize assembly fixation and assembly positioning of the cylinder cover framework 5 respectively.

[0098] The sealing device 100 provided by the application has four sealing structures, and the steering bearing 3 (with double sealing covers) plays a sealing and supporting role, so that when the intermediate shaft assembly of the vehicle steering mechanism 200 rotates, the intermediate shaft drives the bearing to roll, which not only realizes the sealing between the sealing cover and the vehicle steering mechanism 200, but also does not affect the steering ability of the vehicle steering mechanism 200. The assembly flanges of the two sealing covers have a larger connecting surface, so that the sealing device 100 can be assembled on the front apron 300 of the vehicle body. The lip of the assembly flange enables the sealing device to be sealed with the front apron 300 of the vehicle body, and the outer edge of the opening is sealed and connected. In addition to being installed on the front apron 300 of the vehicle body, the sealing device 100 can also be installed on other positions of the vehicle body, thereby enabling the sealing device 100 to be applicable to vehicle models in which the opening is located on the front apron 300 of the vehicle body or other positions of the vehicle body, and ensuring the sealing performance of the cab.

[0099] In another aspect, in combination with Figure 11 and Figure 12 , the embodiment provides a vehicle, which comprises the sealing device 100 of the application, and a vehicle steering mechanism 200 and a front apron 300. The front apron 300 is provided with a steering through hole 6, the vehicle steering mechanism 200 is arranged in the steering through hole 6, and the sealing device 100 is arranged on the vehicle steering mechanism 200 and connected with the front apron 300 around the steering through hole 6.

[0100] The vehicle of the embodiment adopts the sealing device 100 of the application, and has all the beneficial technical effects of the application.

[0101] In some possible implementation manners, with reference to Figure 11 and Figure 12 , the inner side surface of the front apron 300 towards the vehicle interior is provided with a plurality of connecting screws 7, the positions of the connecting screws 7 correspond to the positions of the first assembly hole 1312, the second assembly hole 223 and the third assembly hole 521 of the sealing device 100, so that the second sealing cover 2, the first sealing cover 1 and the cylinder cover skeleton piece 5 can be sequentially threaded on the connecting screws 7, and the sealing device 100 covers the steering through hole 6.

[0102] For example, with reference to Figure 8 and Figure 9 , the second assembly flange 22 of the second sealing cover 2 is provided with an annular sealing rib 221 towards the surface of the front apron 300. The annular sealing rib 221 is outwardly convex, and there can be a plurality of annular sealing ribs 221, which are arranged at intervals in concentricity with the steering through hole 6, so as to form a plurality of annular sealing structures on the front apron 300 around the steering through hole 6.

[0103] In some possible implementation manners, with reference to Figure 11 and 13As shown, the vehicle steering mechanism 200 has an in-vehicle end 2001 and an out-of-vehicle end 2002, the in-vehicle end 2001 is located at the in-vehicle side of the front apron 300, the out-of-vehicle end 2002 is located at the out-of-vehicle side of the front apron 300, the sealing device 100 is sleeved on the vehicle steering mechanism 200, and the third assembly flange 52 of the barrel cover framework is close to the out-of-vehicle end 2002, the cylindrical part 51 faces the in-vehicle end 2001, and the first assembly flange 13 of the first sealing cover 1 and the second assembly flange 22 of the second sealing cover 2 are also close to the out-of-vehicle end 2002, respectively.

[0104] It should be noted that "several", "at least one" mentioned in this paper refers to one or more, "multiple", "at least two" refers to two or more. "And / or", which describes the relationship between the associated objects, means that there can be three relationships, for example, A and / or B can mean that A exists alone, A and B exist together, and B exists alone. The character " / " generally represents that the front and rear associated objects are in an "or" relationship.

[0105] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection; it can be directly connected, or indirectly connected through intermediate medium; it can be the communication inside two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0106] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise explicitly specified and limited.

[0107] In the present application, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature to the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the "upper", "above" and "above" of the first feature to the second feature include that the first feature is directly above and obliquely above the second feature, or only means that the horizontal height of the first feature is higher than that of the second feature. The "below", "below" and "below" of the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or only means that the horizontal height of the first feature is less than that of the second feature.

[0108] In the description of the present specification, the description of the terms "certain embodiments", "one embodiment", "some embodiments", "illustrative embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application.

[0109] The above only describes the embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the principles of the present application shall be included in the protection scope of the present application.

Claims

1. A sealing device, characterized in that The sealing device (100) comprises a first sealing cover (1), a second sealing cover (2) and a turning bearing (3); The first sealing cover (1) comprises an outer cylinder cover part (11) and an inner cylinder cover part (12), the outer cylinder cover part (11) is connected and sleeved outside the inner cylinder cover part (12); the second sealing cover (2) is located inside the outer cylinder cover part (11); The inner cylinder cover part (12) and the second sealing cover (2) are coaxially arranged, the turning bearing (3) is coaxially arranged between the inner cylinder cover part (12) and the second sealing cover (2) and connected with at least one of the inner cylinder cover part (12) and the second sealing cover (2); The sealing device (100) further comprises a bearing retaining assembly (4), the bearing retaining assembly (4) comprises a bearing retaining frame (41), at least one sealing ring (42) and at least one sealing support (43); The bearing retaining frame (41) is cylindrical, one axial end of the bearing retaining frame (41) is connected with the inner cylinder cover part (12), and the other axial end of the bearing retaining frame (41) is connected with the second sealing cover (2); The turning bearing (3) is embedded in the axial middle part of the bearing retaining frame (41); The at least one sealing support (43) is sleeved on one axial end of the bearing retaining frame (41), an inner wall of the at least one sealing support (43) is provided with a U-shaped sealing ring groove (432), the sealing ring (42) is a U-shaped sealing ring, the sealing ring (42) is embedded in the sealing ring groove (432), an opening direction of the sealing ring (42) is parallel to an axial direction of the turning bearing (3) and is arranged away from the turning bearing (3); The sealing ring (42) is in sealing contact with the vehicle turning mechanism (200).

2. The sealing device of claim 1, wherein The inner cylinder cover part (12), the turning bearing (3) and the second sealing cover (2) are coaxially arranged in sequence to form a sealing channel (1001), the sealing channel (1001) is used for allowing the vehicle turning mechanism (200) to pass through.

3. The sealing device of claim 1, wherein, An inner wall of the axial middle part of the bearing retaining frame (41) is provided with a positioning ring groove (411), the turning bearing (3) is embedded in the positioning ring groove (411).

4. The sealing device of claim 1, wherein An outer wall of the at least one sealing support (43) is spaced apart from an inner wall of the bearing retaining frame (41) to form an annular clamping groove (44), the annular clamping groove (44) can be clamped and connected with the inner cylinder cover part (12) and / or the second sealing cover (2).

5. The sealing device according to any one of claims 1 to 4, characterized in that The first sealing cover (1) further comprises a first assembly flange (13), the first assembly flange (13) is connected to an axial end of the outer cylinder cover part (11); The second sealing cover (2) comprises a horn-shaped part (21) and a second assembly flange (22), the second assembly flange (22) and the first assembly flange (13) are laminatedly connected, the horn-shaped part (21) axially penetrates into the outer cylinder cover part (11) and is coaxially arranged with the inner cylinder cover part (12).

6. The sealing device of claim 5, wherein The sealing device (100) further comprises a cylinder cover skeleton piece (5), the cylinder cover skeleton piece (5) comprises a cylindrical part (51) and a third assembly flange (52), the third assembly flange (52) is connected to the axial end of the cylindrical part (51); The cylindrical part (51) is sleeved outside the outer cylinder cover part (11), and the third assembly flange (52), the first assembly flange (13) and the second assembly flange (22) are arranged in sequence.

7. A vehicle characterized by comprising: The vehicle comprises the sealing device (100) of any one of claims 1 to 6, and a vehicle steering mechanism (200) and a front apron (300); The front apron (300) is provided with a steering through hole (6), the vehicle steering mechanism (200) is arranged in the steering through hole (6), and the sealing device (100) is sleeved on the vehicle steering mechanism (200) and connected with the front apron (300) around the steering through hole (6).

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