CN112046199A - Steering axle assembly with side impact energy absorption structure - Google Patents

Abstract

The invention relates to a steering axle assembly with a side impact energy absorption structure, which comprises a frame, a steering axle, a vertically telescopic automobile shock absorber and 2 side bumpers, wherein the 2 side bumpers are distributed on two sides of the frame along the length direction of the steering axle; the frame is equipped with the steering bridge portion crossbeam that is located the steering axle top, side bumper bump the energy-absorbing mechanism through the steering bridge portion side with the steering bridge portion crossbeam links together. The invention provides a steering axle assembly with a side impact energy-absorbing structure, which can absorb side impact energy without the need of collapsing and deforming a frame during side impact and can also support the shock absorber of the frame to participate in side impact energy absorption, and solves the problems of poor safety and single function of the shock absorber caused by the fact that a vehicle body needs to collapse and absorb energy during side impact of the existing automobile.

Description

Steering axle assembly with side impact energy absorption structure

Technical Field

The invention relates to an automobile, in particular to a steering axle assembly with a side impact energy absorption structure.

Background

The automobile comprises a frame, a rear axle (driving axle) for supporting the frame and a front axle (also called front axle, as a steering axle) of the automobile, wherein the two ends of the driving axle and the front axle are both connected with wheels, and the frame is supported on the axle through a shock absorber.

The steering axle is used for mounting front wheels and supporting the weight of the front part of the automobile, and is connected with the frame by a front suspension frame (provided with a shock absorber). A front axle of an automobile with a conventional structure is disclosed in chinese patent application No. 2011201792654, which is entitled "front axle assembly of an automobile" with publication date of 2011, 12 and 28. The automobile front axle comprises a cross rod and two cantilevers, a frame supporting part is arranged at each of two ends of the cross rod, the cantilevers are connected to two ends of the cross rod respectively, and main pin holes are formed in the cantilevers. When the front wheel steering device is used, the steering knuckle is arranged in the main pin hole in a penetrating mode through the main pin and connected with the front shaft, and the front wheel is installed on the steering knuckle.

The drive axle is composed of a main speed reducer, a differential mechanism, a half shaft and an axle housing. The main speed reducer, the differential and the drive axle assembly are arranged in the drive axle housing and positioned at the rear part of the automobile, and power is transmitted to the rear wheels. An existing axle housing is disclosed in chinese patent publication No. CN 205853768U. The basic structure of current axle housing includes the axle housing body, and the axle housing body is equipped with reduction gear installation section and is located two semi-axis installation sections of reduction gear installation section both sides, and the free end of semi-axis installation section is equipped with the wheel connector, and the reduction gear installation section is equipped with the reduction gear installation cavity, and the semi-axis installation section is equipped with the semi-axis installation passageway that begins to extend and communicate the reduction gear installation cavity along the extending direction of semi-axis installation section from the terminal surface of wheel connector. When the automobile rear axle is used, the speed reducer is installed in the speed reducer installation cavity, the two half axles pass through the half axle installation channel to be connected with the wheels to drive the wheels (rear wheels), and the frame is also supported on the axle housing of the drive axle through the shock absorber.

The existing automobile has the following defects: the side impact prevention capability is poor, energy absorption is realized through deformation and collapse of the frame when side impact occurs, and the deformation and collapse of the frame are easy to damage passengers.

Disclosure of Invention

The invention provides a steering axle assembly with a side impact energy-absorbing structure, which can absorb side impact energy without the need of collapsing and deforming a frame during side impact and can also support the shock absorber of the frame to participate in side impact energy absorption, and solves the problems of poor safety and single function of the shock absorber caused by the fact that a vehicle body needs to collapse and absorb energy during side impact of the existing automobile.

The technical problem is solved by the following technical scheme: a steering axle assembly with a side impact energy absorption structure comprises a frame, a steering axle and a vertically telescopic automobile shock absorber, wherein the frame is supported at two ends of the steering axle through the automobile shock absorber respectively; the energy-absorbing steering frame is characterized by further comprising 2 side bumpers distributed on two sides of the frame along the length direction of the steering axle, the frame is provided with a steering bridge cross beam positioned above the steering axle, and the side bumpers are connected with the steering bridge cross beam through a steering bridge side impact energy-absorbing mechanism; the steering bridge side collision energy absorption mechanism comprises a steering bridge side collision energy absorption mechanism transverse guide groove arranged on the front side surface of the steering bridge cross beam, a steering bridge side collision energy absorption mechanism pressure spring arranged in the steering bridge side collision energy absorption mechanism transverse guide groove and extending transversely, a steering bridge side collision energy absorption mechanism sliding block connected in the steering bridge side collision energy absorption mechanism transverse guide groove in a sliding manner, a steering bridge side collision energy absorption mechanism driving rod hinged on the steering bridge side collision energy absorption mechanism sliding block through a hinge pin on the steering bridge side collision energy absorption mechanism at the upper end, and a steering bridge side collision energy absorption mechanism connecting seat hinged on the lower end of the steering bridge side collision energy absorption mechanism energy absorption driving rod through a hinge pin under the steering bridge side collision energy absorption mechanism, wherein the steering bridge side collision energy absorption mechanism connecting seat is connected with the steering bridge together, the steering bridge side collision energy absorption mechanism driving rod is inclined towards the middle state of the steering bridge cross beam at the upper end far away from the steering bridge with, the energy-absorbing mechanism slider is bumped to steering bridge side bumps the energy-absorbing mechanism horizontal pole through steering bridge side with the side bumper links together, the steering bridge inhales the side and bumps can the slider the steering bridge side bumps the energy-absorbing mechanism pressure spring and inhales the side with the steering bridge and bumps between the side bumper that can the slider link together. When the automobile is subjected to side impact, the side impact energy pushes the side bumper to drive the sliding block of the steering bridge side impact energy absorption mechanism to move inwards, the sliding block of the steering bridge side impact energy absorption mechanism extrudes a pressure spring of the steering bridge side impact energy absorption mechanism to absorb the side impact energy, and meanwhile, the transverse beam of the steering bridge (namely a frame) moves downwards under the limiting action of the driving rod of the steering bridge side impact energy absorption mechanism, so that the automobile shock absorber (namely the shock absorber for supporting the frame on the automobile, which absorbs energy and vibrates in an up-and-down direction) is contracted to absorb energy. Therefore, the technical scheme of the invention ensures that the automobile shock absorber not only can resist the jolt generated in the running process of the automobile, but also can absorb the side impact energy when the automobile is subjected to side impact. According to the technical scheme, when jolting vibration is received when a vehicle runs, except for the existing energy absorption and vibration reduction through the automobile shock absorber, the driving rod of the steering bridge side impact energy absorption mechanism can drive the sliding block of the steering bridge side impact energy absorption mechanism to move along the horizontal direction when the automobile shock absorber contracts, so that the compression spring of the steering bridge side impact energy absorption mechanism is used for absorbing energy and reducing vibration. The transversely telescopic spring for energy absorption selects the compression spring, so that the spring can be conveniently fixed.

As preferred, the steering bridge side impact energy-absorbing mechanism further comprises a steering bridge side impact energy-absorbing mechanism rigidity adjusting mechanism, the steering bridge side impact energy-absorbing mechanism rigidity adjusting mechanism comprises a steering bridge side impact energy-absorbing mechanism transverse cylinder body arranged in a steering bridge cross beam and a steering bridge side impact energy-absorbing mechanism piston connected in the steering bridge side impact energy-absorbing mechanism transverse cylinder body in a sliding sealing manner, the steering bridge side impact energy-absorbing mechanism piston divides the steering bridge side impact energy-absorbing mechanism transverse cylinder body into a first air cavity of the steering bridge side impact energy-absorbing mechanism and a second air cavity of the steering bridge side impact energy-absorbing mechanism, the second air cavity of the steering bridge side impact energy-absorbing mechanism is positioned between the first air cavity of the steering bridge side impact energy-absorbing mechanism and a sliding block of the steering bridge side impact energy-absorbing mechanism, the first air cavity of the steering bridge side impact energy-absorbing mechanism is provided with a steering bridge valve and the air pressure in the first air, the transverse rod of the steering bridge side impact energy absorption mechanism comprises an outer section of the steering bridge side impact energy absorption mechanism and an inner section of the steering bridge side impact energy absorption mechanism, the outer section of the steering bridge side impact energy absorption mechanism connects the side bumper with the piston of the steering bridge side impact energy absorption mechanism, and the inner section of the steering bridge side impact energy absorption mechanism connects the piston of the steering bridge side impact energy absorption mechanism with the sliding block of the steering bridge side impact energy absorption mechanism; the utility model discloses a steering bridge, including steering bridge, steering bridge and energy-absorbing mechanism connecting seat, steering bridge's front and back surface respectively is equipped with the horizontal barb groove of steering bridge that extends along steering bridge extending direction on the surface, steering bridge is equipped with and is located the twice support between the steering bridge barb groove steering bridge side bumps the steering bridge glide plane of energy-absorbing mechanism connecting seat, it is equipped with one-to-one and wears to establish 2 steering bridge barb pieces that turn to the horizontal barb inslot of bridge on the steering bridge side to bump the energy-absorbing mechanism connecting seat, be equipped with the horizontal recess of steering bridge on the sliding surface of steering bridge, it bumps the threaded end butt and is in to bump the energy-absorbing mechanism connecting seat threaded connection in the horizontal recess of steering bridge and make steering bridge barb piece top is tightly in on the last lateral wall in the horizontal barb groove of steering bridge and will turn to the bridge side. The existing automobile shock absorber cannot be adjusted after leaving the factory, so that the rigidity between a frame and an axle (hereinafter referred to as automobile bump rigidity) cannot be adjusted. According to the technical scheme, the initial compression state of the compression spring of the steering bridge side impact energy absorption mechanism can be changed by changing the air pressure of the first air cavity of the steering bridge side impact energy absorption mechanism, namely the bumping rigidity of the automobile can be changed, and the height of the automobile cannot be changed when the bumping rigidity of the automobile is changed. When the bumping rigidity is adjusted, the locking bolt of the steering bridge part is loosened, so that the connecting seat of the side impact energy absorption mechanism part of the steering bridge part can slide freely; and locking the steering bridge part by using the locking bolt after the steering bridge part is adjusted in place. The technical scheme of fixing the connecting seat of the side impact energy absorption mechanism of the steering bridge part in the technical scheme has the following advantages: the lock bolt does not damage the sliding surface, so that the sliding smoothness can be maintained for a long time.

Preferably, the steering bridge sliding surface is a convex arc surface. The support stability is good.

Preferably, the knuckle bridge transverse barb groove and the knuckle bridge barb block are in clearance fit, and a knuckle bridge friction layer is disposed on an upper side wall of the knuckle bridge transverse barb groove. Can realize turning to the fixed of bridge side impact energy-absorbing mechanism connecting seat through less locking force, unobstructed nature when can not influencing sliding moreover.

As preferred, steering bridge side bumps energy-absorbing mechanism and still includes cooling brake disc unit, the both ends of transaxle are connected with the knuckle, be connected with the wheel adapter sleeve through the bearing on the knuckle, be connected with steering bridge brake disc on the wheel adapter sleeve, cooling brake disc unit includes the exit end orientation the fluid output tube of steering bridge brake disc, set up and be in the output tube that steering bridge side bumps the lateral wall of energy-absorbing mechanism horizontal cylinder block dodges the mouth and slide sealing connection in the closure in the steering bridge side bumps energy-absorbing mechanism horizontal cylinder block the output tube dodges the apron of establishing the gas pocket of mouth, the apron is in the same place with the upper end rigid coupling of gangbar, be equipped with vertical hole on the upper surface of steering bridge side bumps energy-absorbing mechanism connecting seat, the lower extreme of gangbar can be worn to establish with pulling out to insert vertical downthe, when the air pressure of the first air cavity of the steering bridge side impact energy absorption mechanism is within a set range, the piston of the steering bridge side impact energy absorption mechanism blocks the air outlet hole, and the inlet end of the fluid output pipe is connected with the air outlet hole. The vibration that receives in the wheel driving process impels steering bridge side to hit the energy-absorbing mechanism piston and produce the action that removes and reset, and the distance of removal reaches compressed gas that hits in the first air chamber of energy-absorbing mechanism and blows to the steering bridge brake disc and realize the cooling to the steering bridge brake disc through fluid output tube outflow when venthole and the first air chamber of steering bridge side hit energy-absorbing mechanism intercommunication. The cooling of the brake disc by using the jolt generated by the walking of the automobile is realized.

The invention also comprises a water tank, the steering bridge side impact energy absorption mechanism further comprises a water outlet valve, the water outlet valve comprises a valve body, a valve core and a valve closing spring, the fluid output pipe comprises an output section and an input section, the valve body is internally provided with a cylindrical cavity, a conical cavity with a large diameter end butted with the cylindrical cavity, a fluid output hole butted with a small diameter end of the conical cavity and a water inlet hole arranged on the cylindrical cavity, the inlet end of the output section is connected with the fluid output hole, the outlet end of the output section faces the steering bridge brake disc, the inlet end of the input section is connected with the air outlet hole, the outlet end of the input section is positioned in the fluid output hole, the outlet direction of the input section is far away from the conical cavity, the valve core is connected in a sliding and sealing manner in the cylindrical cavity and seals the water inlet hole, and is provided with a water outlet channel which runs through the circumferential surface from the end, the water inlet hole is connected with the water tank through a water inlet pipe; and the jet flow effect generated when gas flows out from the outlet end of the input section drives the valve core to move to the opening of the water outlet channel, which is positioned on the peripheral surface of the valve core, and the opening is communicated with the water inlet hole. When the vehicle vibrates in the running process and the gas of the first air cavity of the steering bridge part side collision energy absorption mechanism flows out through the air outlet hole, the valve core is driven by the jet action generated when the gas flows out from the outlet end of the output section to move to the opening of the liquid flow channel on the peripheral surface of the valve core and be communicated with the water inlet hole, so that the water in the water tank is blown to the brake disc along with the gas flow; when the air outlet is closed, the valve core is reset under the action of the valve core reset spring to seal the water inlet. This technical scheme makes the water in the water tank also can flow out together and participate in the cooling and improve the cooling effect to the brake disc when fluid output tube blows, and the outflow of cooling water is controlled through the vibration that the vehicle travel in-process produced moreover.

Preferably, the part of the cylindrical cavity, which is positioned on one side of the valve core away from the conical cavity, is provided with an air passage which penetrates through the surface of the valve body. The reliability of the water outlet valve during opening can be improved.

Preferably, the cylindrical cavity is provided with two valve body part large-diameter sections positioned on two sides of the water inlet hole, and the valve core is provided with two valve core part large-diameter sections which are in one-to-one corresponding sliding sealing connection in the 2 valve body part large-diameter sections. The valve core can be started when the negative pressure generated by the jet flow acting in the conical cavity is small.

Preferably, when the large-diameter section of the valve core part and one end of the large-diameter section of the valve body part, which is far away from the tapered cavity, are abutted together, the valve core closes the water inlet hole; when the valve core part large-diameter section and one end of the valve body part large-diameter section close to the conical cavity are abutted together, the opening of the water outlet channel, which is positioned on the peripheral surface of the valve core, is communicated with the water inlet hole. The valve core can be prevented from moving a larger distance due to overlarge negative pressure generated by penetrating the conical cavity, and further the water inlet hole is closed again. The reliability of the water outlet valve when opened is improved.

Preferably, the second air chamber of the steering bridge side collision energy-absorbing mechanism is provided with a steering bridge side collision energy-absorbing mechanism friction through hole penetrating through a surface of the beam of the steering bridge. When the piston of the steering bridge side impact energy absorption mechanism moves, the gas in the second gas cavity of the steering bridge side impact energy absorption mechanism is driven to flow through the friction through hole of the steering bridge side impact energy absorption mechanism, so that the energy absorption effect is achieved. The vibration damping and anti-collision effects can be improved.

Preferably, the friction through hole of the steering bridge side impact energy absorption mechanism is in sealing butt joint with the inlet end of the steering bridge rubber air storage bag. The cleanness in the transverse cylinder body of the steering bridge side collision energy absorption mechanism can be kept, and the phenomena of jamming and abrasion caused by entering of dust are prevented. The elastic shrinkage of the rubber air storage bag at the steering bridge part can play a role in assisting energy absorption.

The invention has the following advantages: the side impact resistance is good; the vehicle body is not extruded in the side collision process within the set range; the automobile shock absorber, that is, the shock absorber which extends and contracts in the vertical direction, can absorb side impact energy.

Drawings

FIG. 1 is a schematic cross-sectional view of the present invention;

FIG. 2 is an enlarged partial schematic view at A of FIG. 1;

FIG. 3 is an enlarged cross-sectional schematic view of the control valve;

FIG. 4 is a schematic cross-sectional view of the connection between the connecting seat of the steering bridge side impact energy absorbing mechanism and the steering axle.

In the figure: the steering bridge comprises a steering bridge 2, a steering bridge cross beam 4, a water tank 6, a side bumper 12, a steering knuckle 13, a bearing 14, a wheel connecting sleeve 15, a steering bridge brake disc 16, a front wheel 17, an automobile shock absorber 18, an output pipe avoiding port 229, an air outlet hole 230, a cover plate 231, a linkage rod 232, a vertical hole 233, an outlet valve 234, a valve body 235, a valve core 236, a valve closing spring 237, an output section 238, an input section 239, a cylindrical cavity 240, a conical cavity 241, a fluid output hole 242, an inlet hole 243, an outlet channel 244, an inlet pipe 245, an opening 246 of the outlet channel on the peripheral surface of the valve core, an air channel 247, a large-diameter valve body section 248, a large-diameter valve core section 249, one end 250 of the large-diameter valve body section far away from the conical cavity, a friction through hole 351 of a steering bridge side impact energy.

Detailed Description

The present invention will be described in detail with reference to the following drawings and examples.

Referring to fig. 1 to 4, a steering axle assembly with a side impact energy absorption structure comprises a frame, a steering axle 2 and a vertically telescopic automobile shock absorber. The frame is provided with a steering bridge beam 4 and a water tank 6. The two ends of the steering axle support the frame, in particular the steering axle cross beam 4, by means of a shock absorber. The invention also includes 2 side bumpers 12 distributed along the length of the steer axle on either side of the frame. The side bumper is connected with the steering bridge cross beam through a steering bridge side impact energy absorption mechanism. The steering knuckle 13 is connected to both ends of the steer axle. The knuckle is connected with a wheel connecting sleeve 15 through a bearing 14. The wheel connecting sleeve is connected with a brake disc 16 of a steering bridge part and a front wheel 17.

The steering bridge side impact energy absorption mechanism comprises a steering bridge side impact energy absorption mechanism transverse guide groove 311 arranged on the front side surface of a steering bridge cross beam, a steering bridge side impact energy absorption mechanism pressure spring 312 which is arranged in the steering bridge side impact energy absorption mechanism transverse guide groove and stretches along the transverse direction, a steering bridge side impact energy absorption mechanism sliding block 313 which is connected in the steering bridge side impact energy absorption mechanism transverse guide groove in a sliding mode, a steering bridge side impact energy absorption mechanism driving rod 315 of which the upper end is hinged on the steering bridge side impact energy absorption mechanism sliding block through a steering bridge side impact energy absorption mechanism upper hinge pin 314, and a steering bridge side impact energy absorption mechanism connecting seat 317 of which the lower end is hinged on the lower end of the steering bridge side impact energy absorption mechanism driving rod through a steering bridge side impact energy absorption mechanism lower hinge. The steering bridge part side impact energy absorption mechanism connecting seat is connected with the steering bridge. The steering bridge side collision energy absorption mechanism driving rod is inclined in a state that the lower end of the driving rod is far away from the upper end of the middle of the steering bridge and faces the middle of a beam of the steering bridge. The side impact energy absorption mechanism sliding block of the steering bridge part is connected with a side bumper through a cross bar of the side impact energy absorption mechanism of the steering bridge part. The steering bridge side impact energy absorption mechanism sliding block is positioned between a steering bridge side impact energy absorption mechanism pressure spring and a side bumper connected with the steering bridge side impact energy absorption mechanism sliding block. The steering bridge side impact energy absorption mechanism further comprises a steering bridge shock absorber rigidity adjusting mechanism. The steering bridge part shock absorber rigidity adjusting mechanism comprises a steering bridge part side impact energy absorption mechanism transverse cylinder body arranged in a steering bridge part cross beam and a steering bridge part side impact energy absorption mechanism piston 318 connected in a sliding and sealing mode in the steering bridge part side impact energy absorption mechanism transverse cylinder body, wherein the steering bridge part side impact energy absorption mechanism piston divides the steering bridge part side impact energy absorption mechanism transverse cylinder body into a steering bridge part side impact energy absorption mechanism first air cavity 319 and a steering bridge part side impact energy absorption mechanism second air cavity 320. The second air cavity of the steering bridge side impact energy absorption mechanism is positioned between the first air cavity of the steering bridge side impact energy absorption mechanism and the sliding block of the steering bridge side impact energy absorption mechanism. The first air cavity of the steering bridge side impact energy absorption mechanism is provided with a steering bridge valve (air inflation and deflation are realized through the valve during use) and the air pressure in the first air cavity of the steering bridge side impact energy absorption mechanism is positive pressure. The cross bar of the steering bridge side impact energy absorption mechanism comprises an outer section 321 of the steering bridge side impact energy absorption mechanism and an inner section 322 of the steering bridge side impact energy absorption mechanism. The outer section of the steering bridge side impact energy absorption mechanism connects the side bumper with the piston of the steering bridge side impact energy absorption mechanism, and the inner section of the steering bridge side impact energy absorption mechanism connects the piston of the steering bridge side impact energy absorption mechanism with the sliding block of the steering bridge side impact energy absorption mechanism. The front and rear surfaces of the steering axle are respectively provided with a steering bridge part transverse barb groove 323 extending along the extension direction of the steering axle, and the steering axle is provided with a steering bridge part sliding surface 324 positioned between the two steering bridge part barb grooves. The connecting seat of the side impact energy absorption mechanism for supporting the steering bridge part is supported on the sliding surface of the steering bridge part. The sliding surface of the steering bridge part is a convex cambered surface, namely the cambered surface of the connecting seat of the side impact energy absorption mechanism for supporting the steering bridge part is matched and supported on the steering bridge. The connecting seat of the steering bridge side collision energy absorption mechanism is provided with 2 steering bridge part barb blocks 325 which are correspondingly arranged in 2 steering bridge part transverse barb grooves in a penetrating way. A stub axle lateral groove 326 is provided in the stub axle sliding surface. The steering bridge side impact energy absorption mechanism connecting seat is in threaded connection with a steering bridge locking bolt 327 of which the threaded end abuts against the transverse groove of the steering bridge. The steering bridge part barb block is tightly propped against the upper side wall of the steering bridge part transverse barb groove under the hand-pulling action of the steering bridge part locking bolt, so that the steering bridge part side collision energy absorption mechanism connecting seat is fixed together with the axle housing. The transverse barb groove of the steering bridge and the barb block of the steering bridge are in clearance fit (namely the dimension of the barb block of the steering bridge in the vertical direction is smaller than that of the barb groove of the steering bridge in the vertical direction), and a friction layer 328 of the steering bridge is arranged on the upper side wall of the transverse barb groove of the steering bridge. The second air cavity of the steering bridge side impact energy-absorbing mechanism is provided with a steering bridge side impact energy-absorbing mechanism friction through hole 351 which penetrates through the surface of the beam of the steering bridge. The friction through hole of the steering bridge side collision energy absorption mechanism is in sealed butt joint with the inlet end of the steering bridge rubber air storage bag 352. The steering bridge side collision energy absorption mechanism further comprises a steering bridge cooling brake disc unit, and the steering bridge cooling brake disc unit comprises a fluid output pipe, an output pipe avoiding opening 229 arranged on the side wall of the transverse cylinder body of the driving bridge side collision energy absorption mechanism and a cover plate 231 which is connected in a sliding sealing mode and is used for sealing the output pipe avoiding opening and is provided with an air outlet hole 230. The cover plate is fixedly connected with the upper end of the linkage rod 232, a vertical hole 233 is formed in the upper surface of the connecting seat of the steering bridge part side impact energy absorption mechanism, and the lower end of the linkage rod can be inserted into the vertical hole in a pulling and inserting mode. The steering bridge cooling brake disc unit also includes a water outlet valve 234. The outlet valve includes a valve body 235, a valve core 236 and a valve closing spring 237. The fluid output tube includes an output segment 238 and an input segment 239. The valve body is internally provided with a cylindrical cavity 240, a conical cavity 241 with a large-diameter end butted with the cylindrical cavity, a fluid output hole 242 butted with a small-diameter end of the conical cavity, and a water inlet hole 243 arranged on the cylindrical cavity. The inlet end of the output section is connected with the fluid output hole, and the outlet end faces the brake disc of the driving bridge part. The inlet end of the input section is connected with the air outlet, the outlet end of the input section is positioned in the fluid output hole, the outlet direction of the input section is far away from the conical cavity, the valve core is connected in the cylindrical cavity in a sliding and sealing mode and seals the water inlet hole, and the valve core is provided with a water outlet channel 244 which is used for communicating the water inlet hole with the conical cavity and is arranged on the circumferential surface of the end surface facing one end of the conical cavity in a penetrating. The inlet opening is connected to the water tank through an inlet pipe 245. The jet action created when gas exits the outlet end of the input section drives the valve element to move to an opening 246 in the periphery of the valve element in the outlet passage to communicate with the inlet opening. The part of the cylindrical cavity, which is positioned at one side of the valve core far away from the conical cavity, is provided with an air passage 247 which penetrates through the surface of the valve body. The cylindrical cavity is provided with two valve body part large-diameter sections 248 which are positioned at two sides of the water inlet hole, and the valve core is provided with two valve core part large-diameter sections 249 which are in one-to-one correspondence sliding sealing connection in the 2 valve body part large-diameter sections. When the valve core part large-diameter section and one end 250 of the valve body part large-diameter section far away from the conical cavity are abutted together, the valve core seals the water inlet hole; when the valve core part large-diameter section and one end of the valve body part large-diameter section close to the conical cavity are abutted together, the opening of the water outlet channel on the peripheral surface of the valve core is communicated with the water inlet hole. The second air cavity of the drive bridge side impact energy-absorbing mechanism is provided with a drive bridge side impact energy-absorbing mechanism friction through hole 251 which penetrates through the surface of the cross beam of the drive bridge. The friction through hole of the bridge side collision energy absorption mechanism is in sealed butt joint with the inlet end of the bridge rubber air storage bag 252.

The embodiment is different from the first embodiment in that: the transverse guide groove of the steering bridge side impact energy absorption mechanism is arranged on the rear side surface of the steering bridge beam.

Claims (10)

1. A steering axle assembly with a side impact energy absorption structure comprises a frame, a steering axle and a vertically telescopic automobile shock absorber, wherein the frame is supported at two ends of the steering axle through the automobile shock absorber respectively; the energy-absorbing steering frame is characterized by further comprising 2 side bumpers distributed on two sides of the frame along the length direction of the steering axle, the frame is provided with a steering bridge cross beam positioned above the steering axle, and the side bumpers are connected with the steering bridge cross beam through a steering bridge side impact energy-absorbing mechanism; the steering bridge side collision energy absorption mechanism comprises a steering bridge side collision energy absorption mechanism transverse guide groove arranged on the front side surface of the steering bridge cross beam, a steering bridge side collision energy absorption mechanism pressure spring arranged in the steering bridge side collision energy absorption mechanism transverse guide groove and extending transversely, a steering bridge side collision energy absorption mechanism sliding block connected in the steering bridge side collision energy absorption mechanism transverse guide groove in a sliding manner, a steering bridge side collision energy absorption mechanism driving rod hinged on the steering bridge side collision energy absorption mechanism sliding block through a hinge pin on the steering bridge side collision energy absorption mechanism at the upper end, and a steering bridge side collision energy absorption mechanism connecting seat hinged on the lower end of the steering bridge side collision energy absorption mechanism energy absorption driving rod through a hinge pin under the steering bridge side collision energy absorption mechanism, wherein the steering bridge side collision energy absorption mechanism connecting seat is connected with the steering bridge together, the steering bridge side collision energy absorption mechanism driving rod is inclined towards the middle state of the steering bridge cross beam at the upper end far away from the steering bridge with, the energy-absorbing mechanism slider is bumped to steering bridge side bumps the energy-absorbing mechanism horizontal pole through steering bridge side with the side bumper links together, the steering bridge inhales the side and bumps can the slider the steering bridge side bumps the energy-absorbing mechanism pressure spring and inhales the side with the steering bridge and bumps between the side bumper that can the slider link together.

2. The steering axle assembly with the side impact energy absorption structure according to claim 1, wherein the steering bridge side impact energy absorption mechanism further comprises a steering bridge damper stiffness adjustment mechanism, the steering bridge damper stiffness adjustment mechanism comprises a steering bridge side impact energy absorption mechanism transverse cylinder body arranged in a steering bridge cross beam and a steering bridge side impact energy absorption mechanism piston connected in a sliding and sealing manner in the steering bridge side impact energy absorption mechanism transverse cylinder body, the steering bridge side impact energy absorption mechanism piston divides the steering bridge side impact energy absorption mechanism transverse cylinder body into a steering bridge side impact energy absorption mechanism first air cavity and a steering bridge side impact energy absorption mechanism second air cavity, the steering bridge side impact energy absorption mechanism second air cavity is located between the steering bridge side impact energy absorption mechanism first air cavity and the steering bridge side impact energy absorption mechanism slide block, the first air cavity of the steering bridge side impact energy absorption mechanism is provided with a steering bridge valve, the air pressure in the first air cavity of the steering bridge side impact energy absorption mechanism is positive pressure, a cross bar of the steering bridge side impact energy absorption mechanism comprises an outer section of the steering bridge side impact energy absorption mechanism and an inner section of the steering bridge side impact energy absorption mechanism, the outer section of the steering bridge side impact energy absorption mechanism connects the side bumper with a piston of the steering bridge side impact energy absorption mechanism, and the inner section of the steering bridge side impact energy absorption mechanism connects the piston of the steering bridge side impact energy absorption mechanism with a sliding block of the steering bridge side impact energy absorption mechanism; the utility model discloses a steering bridge, including steering bridge, steering bridge and energy-absorbing mechanism connecting seat, steering bridge's front and back surface respectively is equipped with the horizontal barb groove of steering bridge that extends along steering bridge extending direction on the surface, steering bridge is equipped with and is located the twice support between the steering bridge barb groove steering bridge side bumps the steering bridge glide plane of energy-absorbing mechanism connecting seat, it is equipped with one-to-one and wears to establish 2 steering bridge barb pieces that turn to the horizontal barb inslot of bridge on the steering bridge side to bump the energy-absorbing mechanism connecting seat, be equipped with the horizontal recess of steering bridge on the sliding surface of steering bridge, it bumps the threaded end butt and is in to bump the energy-absorbing mechanism connecting seat threaded connection in the horizontal recess of steering bridge and make steering bridge barb piece top is tightly in on the last lateral wall in the horizontal barb groove of steering bridge and will turn to the bridge side.

3. The steering axle assembly with a side impact energy absorbing structure as claimed in claim 2, wherein the sliding surface of the steering bridge is a convex arc surface.

4. The steering axle assembly with a side impact energy absorbing structure as claimed in claim 2, wherein the transverse barb groove of the steering bridge is in clearance fit with the barb block of the steering bridge, and a friction layer of the steering bridge is disposed on an upper side wall of the transverse barb groove of the steering bridge.

5. The steering axle assembly with side impact energy absorption structure as claimed in claim 2, wherein the side impact energy absorption mechanism of the steering bridge portion further comprises a cooling brake disc unit, the two ends of the driving axle are connected with steering knuckles, the steering knuckles are connected with wheel connecting sleeves through bearings, the wheel connecting sleeves are connected with the braking disc of the steering bridge portion, the cooling brake disc unit comprises a fluid output pipe with an outlet end facing the braking disc of the steering bridge portion, an output pipe arranged on the side wall of the transverse cylinder body of the side impact energy absorption mechanism of the steering bridge portion is connected with an outlet port and a cover plate which is connected with the transverse cylinder body of the side impact energy absorption mechanism of the steering bridge portion in a sliding and sealing manner and is provided with an air outlet hole, the cover plate is fixedly connected with the upper end of the linkage rod, and the upper surface of the connecting seat of the side impact energy absorption, the lower end of the linkage rod can be inserted into the vertical hole, the air pressure of the first air cavity of the energy absorption mechanism is impacted on the side of the steering bridge part when the air pressure is in a set range, the piston of the energy absorption mechanism is impacted on the side of the steering bridge part to block the air outlet hole, and the inlet end of the fluid output pipe is connected with the air outlet hole.

6. The steering axle assembly with a side impact energy-absorbing structure according to claim 5, further comprising a water tank, wherein the side impact energy-absorbing mechanism of the steering bridge portion further comprises a water outlet valve, the water outlet valve comprises a valve body, a valve core and a valve closing spring, the fluid outlet pipe comprises an output section and an input section, the valve body is internally provided with a cylindrical cavity, a conical cavity with a large diameter end butted with the cylindrical cavity, a fluid outlet hole butted with a small diameter end of the conical cavity, and a water inlet hole arranged on the cylindrical cavity, the inlet end of the output section is connected with the fluid outlet hole, the outlet end faces the steering bridge portion, the inlet end of the input section is connected with the air outlet hole, the outlet end of the input section is located in the fluid outlet hole, the outlet end of the input section is far away from the conical cavity, the valve core is connected in the cylindrical cavity in a sliding and sealing manner and, the valve core is provided with a water outlet channel which penetrates through the peripheral surface from the end surface facing one end of the conical cavity and is used for communicating a water inlet hole and the conical cavity, and the water inlet hole is connected with the water tank through a water inlet pipe; and the jet flow effect generated when gas flows out from the outlet end of the input section drives the valve core to move to the opening of the water outlet channel, which is positioned on the peripheral surface of the valve core, and the opening is communicated with the water inlet hole.

7. The steering axle assembly with the side impact energy absorption structure as claimed in claim 6, wherein the part of the cylindrical cavity on the side of the valve core away from the conical cavity is provided with an air passage penetrating through the surface of the valve body.

8. The steering axle assembly with the side impact energy absorbing structure as claimed in claim 6, wherein the cylindrical cavity is provided with two valve body large-diameter sections at two sides of the water inlet hole, and the valve core is provided with two valve core large-diameter sections which are in one-to-one sliding sealing connection in the 2 valve body large-diameter sections.

9. The steering axle assembly with the side impact energy absorption structure according to claim 8, wherein when the large-diameter section of the valve core part and one end of the large-diameter section of the valve body part, which is far away from the tapered cavity, are abutted together, the valve core closes the water inlet hole; when the valve core part large-diameter section and one end of the valve body part large-diameter section close to the conical cavity are abutted together, the opening of the water outlet channel, which is positioned on the peripheral surface of the valve core, is communicated with the water inlet hole.

10. The steering axle assembly with side impact energy absorbing structure as claimed in claim 2, wherein the second air chamber of the side impact energy absorbing mechanism of the steering bridge is provided with a friction through hole of the side impact energy absorbing mechanism of the steering bridge penetrating the surface of the beam of the steering bridge.

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