CN109878421B - Vehicle ramp device and automobile - Google Patents
Vehicle ramp device and automobile Download PDFInfo
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- CN109878421B CN109878421B CN201910191160.1A CN201910191160A CN109878421B CN 109878421 B CN109878421 B CN 109878421B CN 201910191160 A CN201910191160 A CN 201910191160A CN 109878421 B CN109878421 B CN 109878421B
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- Prior art keywords
- ramp device
- extension
- extension plate
- guide rail
- plate
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G3/00—Ambulance aspects of vehicles; Vehicles with special provisions for transporting patients or disabled persons, or their personal conveyances, e.g. for facilitating access of, or for loading, wheelchairs
- A61G3/02—Loading or unloading personal conveyances; Facilitating access of patients or disabled persons to, or exit from, vehicles
- A61G3/06—Transfer using ramps, lifts or the like
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R3/00—Arrangements of steps or ladders facilitating access to or on the vehicle, e.g. running-boards
Abstract
The application discloses vehicle ramp device and car relates to vehicle manufacturing technical field to send out easily that exists among the solution prior art and rock abnormal sound, and the relatively poor technical problem of durability. In the vehicle ramp device of this application, the slider includes intercrossing setting's centre sill and extension board each other, and the extension board includes at least one first extension board, and the length of single first extension board is less than the length of centre sill, and wherein, offers the sliding tray that matches with the slider on the guide rail, and the sliding tray includes two channels that mutually become the intersection setting, and centre sill and first extension board can slide in two channels respectively. Therefore, the limiting function of the sliding block in at least one direction is increased, the fit clearance between the sliding block and the guide rail is reduced, the shaking abnormal sound is avoided being sent out, the passenger riding experience is optimized, the sliding resistance is reduced, the durability is improved, and the service life is prolonged.
Description
Technical Field
The application relates to the technical field of vehicle manufacturing, in particular to a vehicle ramp device and an automobile.
Background
In recent years, the sales volume of passenger cars is frequently innovative, and for the convenience of getting on the car by some old people and children, especially the convenience of getting on the car by the people sitting on the wheelchair, the wheelchair and the wheelchair getting on the car pedal thereof, namely the slope guide plate, can be arranged and installed on the passenger car, but because the space of the passenger car is relatively narrow, the folding type of getting on the car pedal can occupy the space of the passenger cabin, and the appearance and the space arrangement of the passenger cabin are influenced, so the getting on car pedal adopting the integral design is better, and the occupied space of the passenger car can be reduced.
However, the existing boarding pedal with an integral design is of a slope guide plate and slide rail structure, wherein due to the fact that the slide rail is lack of limiting, noise is easily generated on complex vibration road conditions, and shaking abnormal sound is emitted to influence riding experience of passengers; in addition, the slope guide plate is long in size, so that the requirement on the strength of the slide rail is high, the sliding resistance is high, the durability is poor, and the service life is short.
Disclosure of Invention
An object of the application is to provide a vehicle ramp device to solve the technical problem that send out easily and rock the abnormal sound among the prior art, and the durability is relatively poor.
The above technical problem of the present application is mainly solved by the following technical solutions: a vehicle ramp device comprises a guide rail, a sliding block which is positioned on the guide rail in a sliding way, and a slope guide plate connected to the sliding block, wherein the sliding block comprises a middle beam and an extension plate which are arranged in a mutually intersected way,
the extension plates include at least one first extension plate, a length of a single first extension plate is less than a length of the center sill,
the guide rail is provided with a sliding groove matched with the sliding block, the sliding groove comprises two channels which are mutually intersected, and the middle beam and the first extension plate can respectively slide in the two channels.
In the application, the sliding block is composed of a middle beam and an extension plate which are arranged in an intersecting manner, namely an included angle is formed between the middle beam and the extension plate, wherein the included angle between the middle beam and the extension plate is 15-160 degrees. Further, the included angle between the middle beam and the extension plate is 30 degrees, 60 degrees, 90 degrees, 145 degrees and 120 degrees. The cross-sectional profile of the slider along the width direction of the slider may be "L", "i", "T", "notch", "T" or "up".
In addition, the slide groove is fitted with the slider, i.e., the slide groove includes two grooves disposed in an intersecting arrangement with each other, and the intermediate beam and the first extension plate slide in the two grooves, respectively. I.e., the slide grooves include, but are not limited to, L-shaped grooves and T-shaped grooves.
So set up, then when the slider slides in the sliding tray, then increased the limit function of at least one direction of slider, reduced the fit clearance between slider and the guide rail to avoid sending and rock the abnormal sound, solved the NVH (Noise, Vibration, Harshmess) problem of vehicle, Noise, Vibration and the roughness problem of sound Vibration promptly, promoted automobile user's sense organ impression, optimized the passenger and experienced by bus.
Furthermore, the extension panels comprise at least one first extension panel, the length of the single first extension panel being smaller than the length of the central beam, i.e. the first extension panel, when attached to the central beam, does not completely cover the central beam in the length direction, and may have spaces, for example: when only one first extension plate is arranged, the first extension plate can be arranged at the middle part of the middle beam along the length direction, and both ends of the first extension plate are provided with blank spaces; when only a plurality of first extension plates are provided, the first extension plates may be provided at intervals in the longitudinal direction on the intermediate beam with a space between adjacent two first extension plates.
So set up, then when the slider assembly is in the sliding tray, then reduced the sliding resistance between slider and the guide rail to improve the durability, alleviateed the noise, increased life.
It should be noted that the guide rail and the slider may be arranged horizontally or vertically, that is, the connection surface of the guide rail and the slider may be parallel to the vehicle body chassis or perpendicular to the vehicle body chassis. The sliding groove is formed in the guide rail, when the guide rail and the sliding block are transversely arranged, the limiting function of the sliding block in the direction perpendicular to the chassis of the vehicle body is increased, and when the guide rail and the sliding block are vertically arranged, the limiting function of the sliding block in the direction parallel to the chassis of the vehicle body is increased.
The two guide rails are symmetrically distributed on two sides of the slope guide plate. The vehicle ramp device further includes a driving device for driving the ramp guide to slide on the guide rail.
Preferably, the extension plates further include at least one second extension plate, the first extension plate and the second extension plate are respectively disposed at two ends of the middle beam in the thickness direction, and the first extension plate and the second extension plate are distributed on the middle beam in a staggered manner in the length direction,
the sliding groove comprises a sliding groove and a convex strip, the sliding groove is formed in the guide rail, the convex strip is inwards and convexly arranged on the sliding groove wall of the sliding groove and divides the sliding groove into two grooves, and the first extending plate and the second extending plate are respectively located on two sides of the convex strip.
This application divide into first extension board and the second extension board of crisscross distribution with the extension board, then reduced the sliding resistance between slider and the guide rail to improve the durability, increased life. First extension board and second extend the both sides that the board is located the sand grip respectively, then first extension board and second extend the board and still play limit function well to the slider along the removal of perpendicular to sand grip direction, have reduced the fit clearance between slider and the guide rail to avoid sending and rock the abnormal sound.
It should be noted that, this application divides the extension board into two kinds of extension boards of first extension board and second extension board in staggered distribution, and every extension board all is equipped with one at least, and when the slider was vertically placed, the height of second extension board is higher, and the height of first extension board is lower, and the cross-sectional profile of slider along the slider width direction is the I-shaped, and along slider length direction, is second extension board, first extension board, second extension board … … in proper order wherein, along slider length direction, first extension board and second extension board can be for the interval setting, also can have partial overlap, still can be for linking up the transition just. Wherein, the width of the first extension plate and the width of the second extension plate may be the same or different, and the length of each first extension plate and the length of each second extension plate may be the same or different.
Preferably, the middle part of the extension plate is connected with the middle beam, two sides of the extension plate extend outwards to form a T shape, the sliding groove is a T-shaped groove, two convex strips are arranged, and the two convex strips are respectively inwards and convexly arranged on the sliding groove walls on two sides of the sliding groove, which are opposite to each other in the groove width direction.
The extension plate and the middle beam form a T shape, the sliding groove is a T-shaped groove, when the sliding block slides in the sliding groove, and the raised line is abutted to the first extension plate to achieve a limiting function, the first extension plate is stressed more uniformly, and the stressed force is uniformly distributed on two sides of the middle beam, so that the sliding block can move more stably, and the sliding block is prevented from shaking.
Preferably, a first protrusion is convexly arranged on the surface of the first extending plate, and the first protrusion can be abutted to the protruding strip. The second extension plate is provided with a second protrusion protruding outwards on the surface, and the second protrusion can be abutted to the protruding strip.
The first protrusion is arranged, the protruding strip and the first extending plate are spaced, and a first protruding surface is not arranged on the first extending plate, so that the contact between the first extending plate and the protruding strip is equivalent to point contact, sliding resistance is reduced, and operation durability is improved. The arrangement of the second protrusion separates the convex strip from the surface of the second extension plate without the second protrusion, so that the contact between the second extension plate and the convex strip is equivalent to point contact, thereby reducing sliding resistance and improving operation durability.
Preferably, the cross sections of the first protrusion and the second protrusion are both arc-shaped.
First protruding and the protruding cross-section of second is the arc, then compare in the protruding, cylindrical protruding of cuboid shape, has further reduced the area of contact of first protruding and second arch respectively with the sand grip, has further reduced sliding resistance, has promoted the operation durability simultaneously.
Preferably, the slope guide plate further comprises a connecting frame, the connecting frame is fixedly connected to the sliding block, and the slope guide plate is fixedly connected to the sliding block through the connecting frame.
The connecting frame is arranged, so that the slope guide plate and the sliding block are connected more stably, and meanwhile, the connecting frame is used as an intermediate part for connecting the slope guide plate and the sliding block, and part of impact force caused by the sliding block can be buffered.
It should be noted that, the link span is correspondingly equipped with two along with the guide rail, and the symmetric distribution is in the both sides of slope baffle, has seted up the spread groove on the link span, and the slope baffle is located in this spread groove. Preferably, the opening direction of the connecting groove is perpendicular to the connecting surface of the sliding block and the connecting frame, so that a certain shock absorption effect can be achieved. The connection mode of the slope guide plate and the connecting frame includes but is not limited to threaded connection and clamping connection.
Further, the opening width of the connecting groove is larger than the thickness of the slope guide plate. The connecting surface of the connecting groove and the slope guide plate is a downward inclined surface.
Preferably, the connecting frame is provided with a mounting groove, and a guardrail is arranged in the mounting groove.
The guardrail is correspondingly provided with two guardrails along with the guide rail, and the two guardrails are symmetrically distributed on two sides of the slope guide plate, so that a safety protection measure can be provided for passengers getting on the vehicle, and particularly a safety protection measure is provided for people sitting on the wheelchair.
It should be noted that, the connection mode of the guardrail and the connecting frame includes, but is not limited to, threaded connection and clamping connection.
Preferably, the guide rail is formed by extruding an aluminum profile, and a plurality of extrusion cavities are arranged on the guide rail.
The guide rail is formed by aluminum profile extrusion, and a plurality of extrusion cavities are formed in the guide rail, so that the strength of the guide rail is improved, a limiting support is prevented from being added, the cost is reduced, and the control precision cost of the whole vehicle parts is reduced.
The extrusion cavity may be a rectangular parallelepiped cavity with at least four closed sides, or may be an open cavity like a T-shaped groove.
Preferably, the sliding block is made of nylon material.
The slider is made of nylon materials, so that the wear resistance, toughness and durability of the slider are improved, the service life is prolonged, the damping effect can be achieved, the generated noise is reduced, and the NVH function of a vehicle is optimized.
Preferably, a first connecting hole is formed in the sliding block, a second connecting hole is formed in the connecting frame, a fastener penetrates through the first connecting hole and the second connecting hole, and the connecting frame and the sliding block are connected together through the fastener.
Wherein, the second connecting hole is equipped with a plurality ofly, and corresponding fastener and first connecting hole also are equipped with a plurality ofly, and all follow slider length direction linear array and distribute. Fasteners include, but are not limited to, bolts, screws, and the like. The first connecting hole is a threaded hole, and the second connecting hole is a unthreaded hole or a threaded hole.
Preferably, the surface of the second extension plate is provided with a limit groove communicated with the first connection hole, and the connection frame is provided with a limit bump matched with the limit groove. The limiting convex block is provided with a through hole or a through groove communicated with the second connecting hole. The fastener passes through the first connecting hole, the through hole/the through groove and the second connecting hole in sequence to connect the connecting frame and the sliding block together.
The setting of spacing groove and spacing lug can further restrict relative displacement between slider and the link, reduces and rocks, avoids producing the noise. Meanwhile, the calibration between the positions of the first connecting hole and the second connecting hole can be facilitated, and the installation of the fastener is facilitated.
It should be noted that, spacing lug can be with link integrated into one piece's spacing sand grip, and spacing lug comprises two spacing sand grips that become the interval setting promptly, and the interval between two spacing sand grips is called as and runs through the groove, and spacing sand grip protractile spacing groove and fixed during the installation. The limiting convex block is in a sleeve shape, namely, can be an independent connecting sleeve. During installation, the connecting sleeve can be stretched into the limiting groove and fixed.
The utility model provides an aim at still provides an automobile to solve the vehicle ramp device that exists among the prior art and send out easily and rock abnormal sound, and the relatively poor technical problem of durability.
The above technical problem of the present application is mainly solved by the following technical solutions: an automobile comprises an automobile body and the vehicle ramp device, wherein the vehicle ramp device is arranged below a chassis of the automobile body.
Since the vehicle ramp device has the technical effects, an automobile having the vehicle ramp device also has the same technical effects.
Based on this, this application has than prior art, and it is few to rock the abnormal sound, and small in noise promptly, the passenger experience by bus is good and the device durability is good, long service life's advantage.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
FIG. 1 is a schematic structural view of a vehicle ramp device;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;
FIG. 3 is an enlarged view of a portion of FIG. 2 at B;
FIG. 4 is a cross-sectional view of the guide rail of the present application;
FIG. 5 is a schematic structural diagram of a slider according to the present application;
fig. 6 is a front view of the slider of the present application.
In the figure: 1-a guide rail; 11-a sliding groove; 111-a chute; 112-convex strips; 12-an extrusion chamber; 2-a slide block; 21-a center beam; 22-an extension plate; 221-a first extension plate; 2211-first projection; 222-a second extension panel; 2221-second projection; 3-a slope guide plate; 4-a connecting frame; 41-mounting groove; 5, protecting the fence; 2222-first connection hole; 42-second connection hole; 421-a fastener; 2223-a limit groove; 43-a limit bump; 44-connecting groove.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are conventionally placed in use, and are used only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present application, it is further noted that, unless expressly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
Some embodiments of the present application will be described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.
Embodiment one of the vehicle ramp device:
referring to fig. 1, 2, 3, 4, 5, 6, a ramp device for a vehicle includes a guide rail 1, a slider 2 slidably disposed on the guide rail 1, and a ramp guide 3 attached to the slider 2, the slider 2 includes an intermediate beam 21 and an extension plate 22 disposed to intersect with each other,
the extension plate 22 includes at least one first extension plate 221, the length of the single first extension plate 221 is less than the length of the intermediate beam 21,
wherein, the guide rail 1 is provided with a sliding groove 11 matched with the sliding block 2, the sliding groove 11 comprises two channels which are mutually intersected, and the middle beam 21 and the first extending plate 221 can respectively slide in the two channels.
In the application, the sliding block is composed of a middle beam and an extension plate which are arranged in an intersecting manner, namely an included angle is formed between the middle beam and the extension plate, wherein the included angle between the middle beam and the extension plate is 15-160 degrees. Further, the included angle between the middle beam and the extension plate is 30 degrees, 60 degrees, 90 degrees, 145 degrees and 120 degrees. The cross-sectional profile of the slider along the width direction of the slider may be "L", "i", "T", "notch", "T" or "up". In this embodiment, the angle between the middle beam and the extension plate is 90 °, i.e. the two are perpendicular to each other.
In addition, the slide groove is fitted with the slider, i.e., the slide groove includes two grooves disposed in an intersecting arrangement with each other, and the intermediate beam and the first extension plate slide in the two grooves, respectively. I.e., the slide grooves include, but are not limited to, L-shaped grooves and T-shaped grooves.
So set up, then when the slider slides in the sliding tray, then increased the limit function of at least one direction of slider, reduced the fit clearance between slider and the guide rail to avoid sending and rock the abnormal sound, solved the NVH (Noise, Vibration, Harshmess) problem of vehicle, Noise, Vibration and the roughness problem of sound Vibration promptly, promoted automobile user's sense organ impression, optimized the passenger and experienced by bus.
Furthermore, the extension panels comprise at least one first extension panel, the length of the single first extension panel being smaller than the length of the central beam, i.e. the first extension panel, when attached to the central beam, does not completely cover the central beam in the length direction, and may have spaces, for example: when only one first extension plate is arranged, the first extension plate can be arranged at the middle part of the middle beam along the length direction, and both ends of the first extension plate are provided with blank spaces; when only a plurality of first extension plates are provided, the first extension plates may be provided at intervals in the longitudinal direction on the intermediate beam with a space between adjacent two first extension plates.
So set up, then when the slider assembly is in the sliding tray, then reduced the sliding resistance between slider and the guide rail to improve the durability, alleviateed the noise, increased life.
It should be noted that the guide rail and the slider may be arranged horizontally or vertically, that is, the connection surface of the guide rail and the slider may be parallel to the vehicle body chassis or perpendicular to the vehicle body chassis. The sliding groove is formed in the guide rail, when the guide rail and the sliding block are transversely arranged, the limiting function of the sliding block in the direction perpendicular to the chassis of the vehicle body is increased, and when the guide rail and the sliding block are vertically arranged, the limiting function of the sliding block in the direction parallel to the chassis of the vehicle body is increased.
The two guide rails are symmetrically distributed on two sides of the slope guide plate. The vehicle ramp device further includes a driving device for driving the ramp guide to slide on the guide rail.
In this embodiment, the sliding groove is a through groove, and penetrates through both side surfaces of the guide rail, thereby facilitating the installation of the slider.
Referring to fig. 3, 4, 5, and 6, the extension plate 22 further includes at least one second extension plate 222, the first extension plate 221 and the second extension plate 222 are respectively disposed at two ends of the middle beam 21 along the thickness direction, and the first extension plate 221 and the second extension plate 222 are distributed on the middle beam 21 along the length direction in a staggered manner,
the sliding groove 11 includes a sliding groove 111 and a protruding strip 112, the sliding groove 111 is opened on the guide rail 1, the protruding strip 112 is inwardly protruded on the wall of the sliding groove 111, and divides the sliding groove 111 into two channels, and the first extending plate 221 and the second extending plate 222 are respectively located on two sides of the protruding strip 112.
This application divide into first extension board and the second extension board of crisscross distribution with the extension board, then reduced the sliding resistance between slider and the guide rail to improve the durability, increased life. First extension board and second extend the both sides that the board is located the sand grip respectively, then first extension board and second extend the board and still play limit function well to the slider along the removal of perpendicular to sand grip direction, have reduced the fit clearance between slider and the guide rail to avoid sending and rock the abnormal sound.
It should be noted that, this application divides the extension board into two kinds of extension boards of first extension board and second extension board in staggered distribution, and every extension board all is equipped with at least one, and when the slider was vertically placed, the height of second extension board is higher, and the height of first extension board is lower, and the cross-sectional profile of slider along the slider width direction is "worker" font, and along slider length direction, is second extension board, first extension board, second extension board … … in proper order wherein, along slider length direction, first extension board and second extension board can be for the interval setting, also can have partial overlap, still can be for just joining the transition. Wherein, the width of the first extension plate and the width of the second extension plate may be the same or different, and the length of each first extension plate and the length of each second extension plate may be the same or different.
In this embodiment, the extension plates include 2 second extension plates and 1 first extension plate, and the first extension plate is disposed between the 2 second extension plates. The width of the first extension plate is the same as that of the second extension plate, the length of each first extension plate is different from that of each second extension plate, and the first extension plate and the second extension plate are just in connection transition along the length direction of the sliding block.
Referring to fig. 3, 4, 5, and 6, the middle portion of the extension plate 22 is connected to the middle beam 21, two sides of the extension plate extend outward to form a T shape, and the sliding groove 11 is a T-shaped groove, wherein two of the two protruding strips 112 are provided, and the two protruding strips 112 are respectively and inwardly protruded on the walls of the sliding groove 111 at two opposite sides of the sliding groove 111 along the groove width direction.
The extension plate and the middle beam form a T shape, the sliding groove is a T-shaped groove, when the sliding block slides in the sliding groove, and the raised line is abutted to the first extension plate to achieve a limiting function, the first extension plate is stressed more uniformly, and the stressed force is uniformly distributed on two sides of the middle beam, so that the sliding block can move more stably, and the sliding block is prevented from shaking.
Referring to fig. 5, a first protrusion 2211 is outwardly protruded from a surface of the first extension plate 221, and the first protrusion 2211 can abut against the protruding strip 112.
The first protrusion is arranged, the protruding strip and the first extending plate are spaced, and a first protruding surface is not arranged on the first extending plate, so that the contact between the first extending plate and the protruding strip is equivalent to point contact, sliding resistance is reduced, and operation durability is improved.
Referring to fig. 5, a second protrusion 2221 is protruded outward from the surface of the second extension plate 222, and the second protrusion 2221 can abut against the protruding strip 112.
The arrangement of the second protrusion separates the convex strip from the surface of the second extension plate without the second protrusion, so that the contact between the second extension plate and the convex strip is equivalent to point contact, thereby reducing sliding resistance and improving operation durability.
Referring to fig. 5, the cross-sections of the first projection 2211 and the second projection 2221 are both arc-shaped.
First protruding and the protruding cross-section of second is the arc, then compare in the protruding, cylindrical protruding of cuboid shape, has further reduced the area of contact of first protruding and second arch respectively with the sand grip, has further reduced sliding resistance, has promoted the operation durability simultaneously.
In the present embodiment, the first projection 2211 is provided on the upper surface of the first extension plate 221 and projects upward, and the second projection 2221 is provided on the lower surface of the second extension plate 222 and projects downward.
See fig. 2 and fig. 3, further comprising a connecting frame 4, wherein the connecting frame 4 is fixedly connected to the sliding block 2, and the slope guide plate 3 is fixedly connected to the sliding block 2 through the connecting frame 4.
The connecting frame is arranged, so that the slope guide plate and the sliding block are connected more stably, and meanwhile, the connecting frame is used as an intermediate part for connecting the slope guide plate and the sliding block, and part of impact force caused by the sliding block can be buffered.
It should be noted that two connecting frames 4 are correspondingly arranged along the guide rail 1, and symmetrically distributed on two sides of the slope guide plate 3, a connecting groove 44 is arranged on the connecting frame 4, and the slope guide plate is arranged in the connecting groove 44.
In this embodiment, the opening direction of the connecting groove is perpendicular to the connecting surface of the slider and the connecting frame, so that a certain shock absorption effect can be achieved. The connection mode of the slope guide plate and the connecting frame includes but is not limited to threaded connection and clamping connection.
Further, the opening width of the connecting groove is larger than the thickness of the slope guide plate. The connecting surface of the connecting groove and the slope guide plate is a downward inclined surface.
Referring to fig. 2 and 3, the connecting frame 4 is provided with a mounting groove 41, and a guardrail 5 is arranged in the mounting groove 41.
The guardrail is correspondingly provided with two guardrails along with the guide rail, and the two guardrails are symmetrically distributed on two sides of the slope guide plate, so that a safety protection measure can be provided for passengers getting on the vehicle, and particularly a safety protection measure is provided for people sitting on the wheelchair.
It should be noted that, the connection mode of the guardrail and the connecting frame includes, but is not limited to, threaded connection and clamping connection.
Referring to fig. 2, 3 and 4, the guide rail 1 is formed by extruding an aluminum profile, and a plurality of extrusion cavities 12 are arranged on the guide rail 1.
The guide rail is formed by aluminum profile extrusion, and a plurality of extrusion cavities are formed in the guide rail, so that the strength of the guide rail is improved, a limiting support is prevented from being added, the cost is reduced, and the control precision cost of the whole vehicle parts is reduced.
The extrusion cavity may be a rectangular parallelepiped cavity with at least four closed sides, or may be an open cavity like a T-shaped groove.
Referring to fig. 3, the slider 2 is made of nylon material.
The slider is made of nylon materials, so that the wear resistance, toughness and durability of the slider are improved, the service life is prolonged, the damping effect can be achieved, the generated noise is reduced, and the NVH function of a vehicle is optimized.
Referring to fig. 3 and 5, a first connection hole 2222 is formed in the slider 2, a second connection hole 42 is formed in the connection frame 4, a fastening member 421 penetrates through the space between the first connection hole 2222 and the second connection hole 42, and the connection frame 4 and the slider 2 are connected together through the fastening member 421.
Wherein, the second connecting hole is equipped with a plurality ofly, and corresponding fastener and first connecting hole also are equipped with a plurality ofly, and all follow slider length direction linear array and distribute. Fasteners include, but are not limited to, bolts, screws, and the like. The first connecting hole is a threaded hole, and the second connecting hole is a unthreaded hole or a threaded hole.
Embodiment two of the vehicle ramp device:
referring to fig. 3, 5 and 6, a limiting groove 2223 communicating with the first connection hole 2222 is formed on a surface of the second extension plate 222, and a limiting protrusion 43 matching with the limiting groove 2223 is formed on the connection frame 4. The limit projection 43 is provided with a through hole or a through groove communicated with the second connection hole 42. The fastening member 421 passes through the first coupling hole 2222, the through hole/through groove, and the second coupling hole 42 in sequence to couple the coupling frame 4 and the slider 2 together. The rest is the same as the embodiment one of the vehicle ramp device.
The setting of spacing groove and spacing lug can further restrict relative displacement between slider and the link, reduces and rocks, avoids producing the noise. Meanwhile, the calibration between the positions of the first connecting hole and the second connecting hole can be facilitated, and the installation of the fastener is facilitated.
It should be noted that, spacing lug can be with link integrated into one piece's spacing sand grip, and spacing lug comprises two spacing sand grips that become the interval setting promptly, and the interval between two spacing sand grips is called as and runs through the groove, and spacing sand grip protractile spacing groove and fixed during the installation. The limiting convex block is in a sleeve shape, namely, can be an independent connecting sleeve. During installation, the connecting sleeve can be stretched into the limiting groove and fixed.
Embodiment one of the automobile:
an automobile comprises an automobile body and the vehicle ramp device of any one of the embodiments, wherein the vehicle ramp device is arranged below a chassis of the automobile body.
Since the vehicle ramp device has the technical effects, an automobile having the vehicle ramp device also has the same technical effects.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. A vehicle ramp device comprises a guide rail, a sliding block and a ramp guide plate, wherein the sliding block is positioned on the guide rail in a sliding way, the ramp guide plate is connected to the sliding block, and the vehicle ramp device is characterized in that: the slider comprises a middle beam and an extension plate which are arranged in a mutually intersected way,
the extension plates include at least one first extension plate and at least one second extension plate, the first extension plate and the second extension plate are respectively arranged at two ends of the middle beam along the thickness direction, the length of the single first extension plate is smaller than that of the middle beam,
the guide rail is provided with a sliding groove matched with the sliding block, the sliding groove comprises two channels which are mutually intersected, and the middle beam and the first extension plate can respectively slide in the two channels.
2. A vehicle ramp device according to claim 1, wherein: the first extension plates and the second extension plates are distributed on the middle beam in a staggered way along the length direction,
the sliding groove comprises a sliding groove and a convex strip, the sliding groove is formed in the guide rail, the convex strip is inwards and convexly arranged on the sliding groove wall of the sliding groove and divides the sliding groove into two grooves, and the first extending plate and the second extending plate are respectively located on two sides of the convex strip.
3. A vehicle ramp device according to claim 2, wherein: the middle part of the extension plate is connected with the middle beam, two sides of the extension plate extend outwards to form a T shape, the sliding groove is a T-shaped groove, two convex strips are arranged, and the two convex strips are respectively inwards and convexly arranged on the sliding groove walls on the two sides of the sliding groove opposite to each other in the groove width direction.
4. A vehicle ramp device according to claim 2, wherein: a first protrusion is convexly arranged on the surface of the first extending plate outwards and can be abutted against the convex strip; the second extension plate is provided with a second protrusion protruding outwards on the surface, and the second protrusion can be abutted to the protruding strip.
5. A vehicle ramp device according to claim 4, wherein: the cross sections of the first bulge and the second bulge are both arc-shaped.
6. A vehicle ramp device according to any one of claims 1 to 5, wherein: the slope guide plate is fixedly connected to the sliding block through the connecting frame.
7. A vehicle ramp device according to claim 6, wherein: the link is equipped with the mounting groove, be equipped with the guardrail in the mounting groove.
8. A vehicle ramp device according to any one of claims 1 to 5, wherein: the guide rail is formed by extruding aluminum profiles, and a plurality of extrusion cavities are arranged on the guide rail.
9. A vehicle ramp device according to any one of claims 1 to 5, wherein: the slider is made of nylon materials.
10. An automobile, characterized in that: a vehicle ramp device comprising a vehicle body and a vehicle ramp device according to any one of claims 1 to 9, said vehicle ramp device being disposed below a chassis of said vehicle body.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910191160.1A CN109878421B (en) | 2019-03-13 | 2019-03-13 | Vehicle ramp device and automobile |
| PCT/CN2020/075112 WO2020181952A1 (en) | 2019-03-13 | 2020-02-13 | Vehicle ramp device and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910191160.1A CN109878421B (en) | 2019-03-13 | 2019-03-13 | Vehicle ramp device and automobile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109878421A CN109878421A (en) | 2019-06-14 |
| CN109878421B true CN109878421B (en) | 2020-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910191160.1A Active CN109878421B (en) | 2019-03-13 | 2019-03-13 | Vehicle ramp device and automobile |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109878421B (en) |
| WO (1) | WO2020181952A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018169993A1 (en) | 2017-03-14 | 2018-09-20 | Five Prime Therapeutics, Inc. | Antibodies binding to vista at acidic ph |
| CN109878421B (en) * | 2019-03-13 | 2020-11-03 | 浙江吉利控股集团有限公司 | Vehicle ramp device and automobile |
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Also Published As
| Publication number | Publication date |
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| CN109878421A (en) | 2019-06-14 |
| WO2020181952A1 (en) | 2020-09-17 |
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