阅读说明：本技术 一种用于卡车驾驶室悬置的空气弹簧减振器 (Air spring shock absorber for suspending truck cab ) 是由 施晓玮 倪旦平 于 2021-08-25 设计创作，主要内容包括：本发明涉及减震器技术领域,具体为一种用于卡车驾驶室悬置的空气弹簧减振器。一种用于卡车驾驶室悬置的空气弹簧减振器,包括弹簧盘、塑料活塞、进气气嘴、囊皮、减振器油筒、阀芯O型圈、活塞O型圈和连杆O型圈,所述弹簧盘的内部焊接有减振器油筒,弹簧盘的上方安装有塑料活塞,塑料活塞的侧面设置有进气气嘴。本发明的有益效果是：该用于卡车驾驶室悬置的空气弹簧减振器,在现有的基础上进行改进,利用通过旋转过程中滑板上的气流槽与阀芯的通断来控制空气弹簧减振器的进气与排气,使减振器得到更高的耐久性与舒适性,紧凑的结构可使减振器能更快的做出响应,提升驾驶舒适性,而且还能够进行不同程度的斜向减震。(The invention relates to the technical field of shock absorbers, in particular to an air spring shock absorber for suspending a truck cab. The utility model provides an air spring shock absorber for truck driver's cabin suspension, includes spring disc, plastic piston, the air cock that admits air, bag skin, shock absorber oil cylinder, case O type circle, piston O type circle and connecting rod O type circle, the inside welding of spring disc has the shock absorber oil cylinder, and plastic piston is installed to the top of spring disc, and plastic piston's side is provided with the air cock that admits air. The invention has the beneficial effects that: this an air spring shock absorber for suspension of truck driver's cabin improves on current basis, utilizes the break-make through air current groove on the rotatory in-process slide and case to control air spring shock absorber's the admit air and exhaust, makes the shock absorber obtain higher durability and travelling comfort, and compact structure can make the response that makes that the shock absorber can be faster, promotes and drives the travelling comfort, but also can carry out the slant shock attenuation of different degrees.)

1. The utility model provides an air spring shock absorber for truck cab suspension, its characterized in that, includes spring disc (1), plastic piston (2), the air cock (3) of admitting air, capsule skin (4), shock absorber oil cylinder (6), case O type circle (16), piston O type circle (20) and connecting rod O type circle (21), the internal weld of spring disc (1) has shock absorber oil cylinder (6), and plastic piston (2) are installed to the top of spring disc (1), and the side of plastic piston (2) is provided with air cock (3) of admitting air, and capsule skin (4) are installed in the outside of plastic piston (2), and the upper end of capsule skin (4) is fixed through curved clamping ring (8) and top cap (9), be fixed connection between curved clamping ring (8) and top cap (9), the lower extreme of capsule skin (4) is fixed through flat clamping ring (5) and plastic piston (2), is fixed connection between flat clamping ring (5) and plastic piston (2), a connecting rod (7) is fixedly connected to the upper portion of the shock absorber oil cylinder (6), the connecting rod (7) is in sliding connection with the top cover (9), and a connecting rod O-shaped ring (21) is arranged between the connecting rod (7) and the top cover (9).

2. Air spring shock absorber for truck cab suspension according to claim 1, characterized in that a piston O-ring (20) is arranged between the plastic piston (2) and the shock absorber oil cylinder (6), the plastic piston (2) is fixedly provided with a guide seat (12), and a sliding plate (13) is arranged under the guide seat (12) in a pressing manner.

3. The air spring shock absorber for suspending the truck cab as claimed in claim 2, wherein a jacking spring (18) is sleeved outside the shock absorber oil cylinder (6), the head end and the tail end of the jacking spring (18) are respectively connected with the shock absorber oil cylinder (6) and the plastic piston (2), and a lower lifting ring (23) is installed at the bottom of the shock absorber oil cylinder (6).

4. Air spring shock absorber for truck cab suspension according to claim 3, characterized in that the side surface of the connecting rod (7) is fixedly provided with a compression bumper (10), the outside of the connecting rod (7) is provided with a sliding sleeve (11), and the top of the connecting rod (7) is fixedly provided with a connecting plate (26).

5. The air spring shock absorber for suspending a truck cab as claimed in claim 2, wherein a flat sealing gasket (14) is arranged below the sliding plate (13) in a pressing mode, a copper sleeve (15) is arranged below the flat sealing gasket (14), a valve core O-shaped ring (16) is arranged on the outer side of the copper sleeve (15), a compression spring (17) is fixedly arranged below the copper sleeve (15), and a sliding block (19) is arranged on one side, away from the valve core, of the sliding plate (13).

6. The air spring shock absorber for suspending the truck cab according to claim 4, wherein a fixing plate (24) is arranged above the connecting plate (26), the fixing plate (24) is connected with the connecting plate (26) through a connecting rod (25), an upper lifting ring (22) is rotatably mounted at the top end of the fixing plate (24), a second communicating groove (32) is formed in the fixing plate (24), a second opening (33) is formed in the middle of the fixing plate (24), an inner connecting plate (34) is movably mounted in the second communicating groove (32), the inner connecting plate (34) is in a ball-bowl shape, the outer side of the inner connecting plate (34) is made of rubber, connecting shells (35) are fixedly mounted on the left side and the right side of the fixing plate (24), and trigger rods (41) penetrate through the left side and the right side of the fixing plate (24).

7. The air spring shock absorber for suspending the truck cab according to claim 6, wherein the inner connecting plate (34) is fixedly connected with the connecting rod (25), an adjusting block (28) is fixedly arranged below the connecting rod (25), the adjusting block (28) is in a ball-bowl shape, a first connecting groove (27) is formed in the connecting plate (26), a first opening (29) is formed in the middle of the connecting plate (26), the inner wall of the first connecting groove (27) is attached to the outer wall of the adjusting block (28), a pressure spring (31) is fixedly arranged in the first connecting groove (27), a lap-joint block (30) is fixedly connected to the front end of the pressure spring (31), and an elastic structure is formed between the lap-joint block (30) and the connecting plate (26) through the pressure spring (31).

8. The air spring shock absorber for suspending the truck cab as claimed in claim 6, wherein an inner connecting block (36) is slidably mounted inside the connecting shell (35), a through hole (37) is formed inside the inner connecting block (36), an air hole (38) is formed in the right side of the connecting shell (35), a tension spring (39) is fixedly mounted inside the right side of the connecting shell (35), and the tension spring (39) is fixedly connected with the inner connecting block (36).

9. Air spring shock absorber for truck cab suspension according to claim 8, characterized in that the inner block (36) forms a sliding structure with the connecting shell (35) through the triggering lever (41), and the inner block (36) forms a resilient structure with the connecting shell (35) through the tension spring (39).

10. Air spring shock absorber for truck cab suspension according to claim 9, characterized in that the horizontal center lines of the triggering lever (41), the tension spring (39), the inner block (36) and the connecting shell (35) are all on the same straight line, the interior of the triggering lever (41) and the interior of the inner block (36) are both hollow, and the connecting shell (35) is interconnected with the air pipe (40) through the air hole (38).

Technical Field

The invention relates to the technical field of shock absorbers, in particular to an air spring shock absorber for suspending a truck cab.

Background

The effect of bumper shock absorber is the shock of damping when rebounding after the spring, and the scene that the bumper shock absorber used is many, is often used for automotive suspension's inside, also can be used for the below of truck driver's cabin suspension, reduces rocking of truck driving in-process driver's cabin, improves driver's travelling comfort when guaranteeing safe driving, and driver's cabin suspension bumper shock absorber is air spring bumper shock absorber usually.

Some existing air spring shock absorbers have some problems in use:

the air spring shock absorber is produced by a plurality of manufacturers in China, but a control air valve is additionally arranged on a suspension to realize air intake and exhaust in the working process, so that the structure is complex, the installation is more complicated and the air spring shock absorber is easy to damage; the vibration response rate of the air spring shock absorber is also limited by the transmission efficiency of the air valve, so that the driving comfort is influenced; the conventional air spring shock absorber can only perform shock absorption work in a vertical or inclined direction generally, cannot perform multi-stage shock absorption in multiple directions simultaneously, and is poor in using effect.

Disclosure of Invention

Aiming at the technical problems in the prior art, the invention provides the air spring shock absorber for suspending the truck cab, which solves the problem that the driving comfort is influenced because the vibration response rate of the existing air spring shock absorber is limited by the transmission efficiency of the air valve; the existing air spring shock absorber can only carry out shock absorption work in one vertical or inclined direction, and cannot simultaneously carry out shock absorption in a plurality of directions.

The technical scheme for solving the technical problems is as follows: the utility model provides an air spring shock absorber for truck driver's cabin suspension, includes spring disc, plastic piston, the air cock that admits air, capsule skin, shock absorber oil cylinder, case O type circle, piston O type circle and connecting rod O type circle, the inside welding of spring disc has the shock absorber oil cylinder, and plastic piston is installed to the top of spring disc, and plastic piston's side is provided with the air cock that admits air, and the capsule skin is installed in plastic piston's the outside, and it is fixed through curved clamping ring and top cap in the upper end of capsule skin, be fixed connection between curved clamping ring and the top cap, the lower extreme of capsule skin is fixed through flat clamping ring and plastic piston, is fixed connection between flat clamping ring and the plastic piston, and the top dead lever of shock absorber oil cylinder is connected with the connecting rod, is sliding connection between connecting rod and the top cap, is provided with connecting rod O type circle between connecting rod and the top cap.

The invention has the beneficial effects that:

1) the air spring shock absorber for suspending the truck cab has better effect, the invention improves on the prior basis, improves the comfort and the durability of the shock absorber by adding the air charging and discharging function in the air spring shock absorber, replaces the prior mounting mode, improves the product on the basis of the prior pneumatic slide type direction valve control technology, when the shock absorber is stretched and compressed, the inner sliding sleeve moves up and down along with the shock absorber, the trapezoidal boss on the sleeve can control the rotation of the sliding plate through the sliding block, controls the air intake and the air discharge of the air spring shock absorber through the on-off of the air flow groove and the valve core on the sliding plate in the rotation process, ensures that the shock absorber has higher durability and comfort, has compact structure, can enable the shock absorber to respond faster, improves the driving comfort, and is not easy to be damaged by the influence of external factors compared with an air valve exposed outside, the valve has better durability, the installation process can be simplified by reducing the external air valve, and the cost is reduced.

2) The air spring shock absorber for suspending the truck cab has better effect, the shock absorption assembly can be adjusted at multiple angles through a spherical hinge mechanism formed by the arranged spherical bowl connecting assembly, so that the device can absorb shock from different positions, when the device vibrates in an oblique direction, the device can automatically reduce the amplitude of vibration when vibrating in the oblique direction by utilizing the air pressure adjusting assembly consisting of the elastic assembly, the air pipe and the tension spring in the device, the triggering rod can lead the device to automatically inflate the inside of the device when the inclination angle is overlarge when in use, thereby make the device whole reset for the device can guarantee that the whole can not inclination too big, reduces the strain of the inside spacing subassembly of air spring bumper shock absorber, has promoted the result of use of device, and the ball pivot mechanism of upper and lower both sides can act on the balancing pole simultaneously and make the connecting rod be in the vertical state all the time at the course of the work.

On the basis of the technical scheme, the invention can be further improved as follows.

Further, a piston O-shaped ring is arranged between the plastic piston and the oil cylinder of the shock absorber, the plastic piston is fixedly provided with a guide seat, and a sliding plate is tightly pressed below the guide seat; the outer side of the shock absorber oil cylinder is sleeved with a jacking spring, the head end and the tail end of the jacking spring are respectively connected with the shock absorber oil cylinder and the plastic piston, and the bottom of the shock absorber oil cylinder is provided with a lower lifting ring; the fixed compression buffer block that is provided with of side surface of connecting rod, the outside of connecting rod is provided with the slip sleeve, and the fixed connecting plate that is provided with in top of connecting rod the below of slide compresses tightly and is provided with the sealed pad of plane, and the copper sheathing is installed to the sealed below of plane, and case O type circle is installed in the outside of copper sheathing, and the fixed compression spring that is provided with in below of copper sheathing, the slide is kept away from one side of case and is installed the slider.

The beneficial effect of adopting above-mentioned further scheme is that through increasing the function of filling the gas in air spring shock absorber, make the travelling comfort and the durability of shock absorber promoted, through the break-make of the air current groove on the rotatory in-process slide and case control air intake and the exhaust of air spring shock absorber, make the shock absorber obtain higher durability and travelling comfort, compact structure can make the response that the shock absorber can be faster, promote the driving comfort, and compare in exposing outside pneumatic valve and be difficult for receiving external factor influence and damage.

Further, the top of connecting plate is provided with the fixed plate, and the fixed plate passes through the connecting rod and links to each other with the connecting plate, and rings are installed in the rotation of the top of fixed plate, and second intercommunication groove has been seted up to the inside of fixed plate, and the second opening has been seted up to the centre of fixed plate, the inside movable mounting in second intercommunication groove has interior fishplate bar, the shape of interior fishplate bar is the ball bowl form, and the outside of interior fishplate bar is the rubber material, the left and right sides fixed mounting of fixed plate has the connecting shell, and the left and right sides of fixed plate all runs through and is provided with the trigger lever.

The beneficial effect who adopts above-mentioned further scheme is that, through the external aeration equipment in trigger bar trigger device right side on the device for the inside atmospheric pressure of device is balanced and is guaranteed wholly to be in the vertical state simultaneously.

Further, be fixed connection between interior fishplate bar and the connecting rod, the below of connecting rod is fixed and is provided with the regulating block, and the shape of regulating block is the ball bowl form, first connecting groove has been seted up to the inside of connecting plate, and first opening has been seted up to the centre of connecting plate, and the inner wall of first connecting groove and the outer wall of regulating block are laminated mutually, and the fixed pressure spring that is provided with in inside of first connecting groove, the front end fixedly connected with overlap joint piece of pressure spring, overlap joint piece pass through to constitute elastic construction between pressure spring and the connecting plate.

Adopt above-mentioned further scheme's beneficial effect to be, the regulating block through ball bowl form on the device makes the device can be when different angular vibration, and the regulating block also is in different angles, compares in current perpendicular shock attenuation, and the device's adaptability is stronger, reduces spacing subassembly's load, has promoted the durability of device.

Furthermore, an inner connecting block is slidably mounted inside the connecting shell, a through hole is formed inside the inner connecting block, an air hole is formed in the right side of the connecting shell, a tension spring is fixedly mounted inside the right side of the connecting shell, and the tension spring is fixedly connected with the inner connecting block; the inner connecting block forms a sliding structure with the connecting shell through the trigger rod, and the inner connecting block forms an elastic structure with the connecting shell through the tension spring; the horizontal central lines of the trigger rod, the tension spring, the internal connection block and the connection shell are all on the same straight line, the interior of the trigger rod and the interior of the internal connection block are both hollow, and the connection shell is communicated with the air pipe through an air hole.

Adopt above-mentioned further scheme's beneficial effect to be, make the fishplate bar when the slope through the intercommunication structure on the device, thereby support the trigger bar and ventilate to the inside of device to make the whole vertical state that is in once more of device, promoted the stability when device uses.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic front view of the present invention;

FIG. 3 is a side cross-sectional structural schematic view of the present invention;

FIG. 4 is a schematic diagram of the structure at A in FIG. 3 according to the present invention;

FIG. 5 is a top cross-sectional view of the skateboard of the present invention;

FIG. 6 is a schematic view of the connection structure of the fixing plate and the connecting plate according to the present invention;

FIG. 7 is a schematic diagram of the structure of FIG. 6 at B in accordance with the present invention;

FIG. 8 is a schematic view of the structure of FIG. 6 at C in accordance with the present invention;

FIG. 9 is a schematic view of the connecting rod and adjusting block connection structure of the present invention;

FIG. 10 is a schematic view of the connection structure of the adjusting block and the connecting plate of the present invention;

FIG. 11 is a schematic view of the connection structure of the connecting block and the connecting plate of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a spring disk, 2, a plastic piston, 3, an air inlet nozzle, 4, a bag skin, 5, a flat pressure ring, 6, a vibration reducer oil cylinder, 7, a connecting rod, 8, a bending pressure ring, 9, a top cover, 10, a compression buffer block, 11, a sliding sleeve, 12, a guide seat, 13, a sliding plate, 14, a plane sealing gasket, 15, a copper sleeve, 16, a valve core O-shaped ring, 17, a compression spring, 18, a jacking spring, 19, a sliding block, 20, a piston O-shaped ring, 21, a connecting rod O-shaped ring, 22, an upper hanging ring, 23, a lower hanging ring, 24, a fixing plate, 25, a connecting rod, 26, a connecting plate, 27, a first connecting groove, 28, an adjusting block, 29, a first opening, 30, an overlapping block, 31, a pressure spring, 32, a second connecting groove, 33, a second opening, 34, an inner connecting plate, 35, a connecting shell, 36, an inner connecting block, 37, a through hole, 38, an air hole, 39, a tension spring, 40 and an air pipe, 41. a trigger lever.

Detailed Description

The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.

When the existing air spring shock absorber is used, shock absorption can be generally carried out only in one direction, the shock absorption effect is poor, shock absorption can not be carried out in adaptation to different angles, because sloshing can cause inclined sloshing, the existing shock absorption device can not process the inclined sloshing, can not automatically return to the original position when the shock absorption device is inclined, and can not automatically return to the original position when the inclination amplitude is too large; a plurality of manufacturers for producing air spring shock absorbers in China exist, but a control air valve needs to be additionally arranged on a suspension for air intake and exhaust in the working process, the structure is complex, the installation is complicated, and the air spring shock absorber is easy to damage. The vibration response rate of the air spring damper is limited by the transmission efficiency of the air valve, so that the driving comfort is influenced.

The present invention provides the following preferred embodiments

As shown in fig. 1-3, an air spring damper for suspending a truck cab comprises a spring disc 1, a plastic piston 2, an air inlet nozzle 3, a bag skin 4, a damper oil cylinder 6, a valve core O-ring 16, a piston O-ring 20 and a connecting rod O-ring 21, wherein the damper oil cylinder 6 is welded inside the spring disc 1, the plastic piston 2 is installed above the spring disc 1, the air inlet nozzle 3 is arranged on the side surface of the plastic piston 2, the bag skin 4 is installed on the outer side of the plastic piston 2, the upper end of the bag skin 4 is fixed with a top cover 9 through a bent press ring 8, the bent press ring 8 is fixedly connected with the top cover 9, the lower end of the bag skin 4 is fixed with the plastic piston 2 through a flat press ring 5, the flat press ring 5 is fixedly connected with the plastic piston 2, a connecting rod 7 is fixedly connected with the upper end of the damper oil cylinder 6, the connecting rod 7 is slidably connected with the top cover 9, a connecting rod O-shaped ring 21 is arranged between the connecting rod 7 and the top cover 9, so that the integral sealing performance of the device is ensured.

In the embodiment, as shown in fig. 1-5, in order to further increase the response speed of the device, a piston O-ring 20 is arranged between the plastic piston 2 and the shock absorber oil cylinder 6, a guide seat 12 is fixedly arranged on the plastic piston 2, and a sliding plate 13 is arranged below the guide seat 12 in a pressing manner; the outer side of the shock absorber oil cylinder 6 is sleeved with a jacking spring 18, the head end and the tail end of the jacking spring 18 are respectively connected with the shock absorber oil cylinder 6 and the plastic piston 2, and the bottom of the shock absorber oil cylinder 6 is provided with a lower lifting ring 23; the side surface of the connecting rod 7 is fixedly provided with a compression buffer block 10, the outer side of the connecting rod 7 is provided with a sliding sleeve 11, the top of the connecting rod 7 is fixedly provided with a connecting plate 26, a flat sealing gasket 14 is tightly pressed below a sliding plate 13, a copper sleeve 15 is installed below the flat sealing gasket 14, a valve core O-shaped ring 16 is installed on the outer side of the copper sleeve 15, a compression spring 17 is fixedly arranged below the copper sleeve 15, a sliding block 19 is installed on one side of the sliding plate 13 away from the valve core, the comfort and the durability of the shock absorber are improved by adding the air charging and discharging functions in the air spring shock absorber, the air charging and discharging of the air spring shock absorber are controlled by the on-off of an air flow groove on the sliding plate 13 and the valve core in the rotating process, the shock absorber is enabled to obtain higher durability and comfort, the shock absorber can respond faster due to a compact structure, and the driving comfort is improved, and is less susceptible to damage from external elements than an externally exposed gas valve.

In this embodiment, as shown in fig. 3 and fig. 6 to 7, in order to further improve the applicability of the device, a fixing plate 24 is disposed above the connecting plate 26, the fixing plate 24 is connected to the connecting plate 26 through a connecting rod 25, an upper hanging ring 22 is rotatably mounted at the top end of the fixing plate 24, a second communicating groove 32 is formed in the fixing plate 24, a second opening 33 is formed in the middle of the fixing plate 24, an internal connecting plate 34 is movably mounted inside the second communicating groove 32, the internal connecting plate 34 is in a ball-bowl shape, the outer side of the internal connecting plate 34 is made of rubber, connecting shells 35 are fixedly mounted on the left side and the right side of the fixing plate 24, trigger rods 41 are respectively disposed on the left side and the right side of the fixing plate 24 in a penetrating manner, and an inflating device externally connected to the right side of the device is triggered by the trigger rods 41 on the device, so that the internal air pressure of the device is balanced and the whole device is in a vertical state.

In this embodiment, as shown in fig. 3, 6-7 and 9-11, in order to further improve the durability of the device, the inner connecting plate 34 is fixedly connected with the connecting rod 25, the adjusting block 28 is fixedly disposed below the connecting rod 25, the adjusting block 28 is in a ball-bowl shape, the connecting plate 26 is internally provided with a first communicating groove 27, the connecting plate 26 is internally provided with a first opening 29, the inner wall of the first communicating groove 27 is attached to the outer wall of the adjusting block 28, the first communicating groove 27 is internally and fixedly provided with a pressure spring 31, the front end of the pressure spring 31 is fixedly connected with a lapping block 30, the lapping block 30 forms an elastic structure with the connecting plate 26 through the pressure spring 31, the adjusting block 28 in a ball-bowl shape on the device enables the device to be capable of vibrating at different angles, the adjusting block 28 is also at different angles, compared with the existing vertical shock absorption, the device has stronger adaptability and reduces the load of the limiting component.

In this embodiment, as shown in fig. 2-3 and fig. 6-11, in order to further improve the damping effect of the device, an inner connecting block 36 is slidably installed inside the connecting shell 35, a through hole 37 is formed inside the inner connecting block 36, an air hole 38 is formed on the right side of the connecting shell 35, a tension spring 39 is fixedly installed inside the right side of the connecting shell 35, and the tension spring 39 and the inner connecting block 36 are fixedly connected; the inner connecting block 36 forms a sliding structure with the connecting shell 35 through the trigger rod 41, and the inner connecting block 36 forms an elastic structure with the connecting shell 35 through the tension spring 39; the horizontal central lines of the trigger rod 41, the tension spring 39, the inner connecting block 36 and the connecting shell 35 are all on the same straight line, the interior of the trigger rod 41 and the interior of the inner connecting block 36 are both hollow, the connecting shell 35 is communicated with the air pipe 40 through the air hole 38, and the inner connecting plate 34 abuts against the trigger rod 41 to ventilate the interior of the device when inclined through a communication structure on the device, so that the whole device is in a vertical state again, and the stability of the device in use is improved.

The specific working process of the invention is as follows:

(1) the shock absorber is pressurized and absorbs shock

Firstly, when the shock absorber is compressed, the sliding sleeve 11 moves downwards along with the connecting rod 7, the sliding block 19 slides relatively along with the trapezoid boss on the sliding sleeve 11 to drive the sliding plate 13 connected with the sliding block 19 to rotate anticlockwise, the notch of the sliding plate 13 moves towards the air inlet, the exhaust passage is in a closed state, compressed air enters the air spring through the air inlet nozzle 3, the copper sleeve 15 and the notch of the sliding plate 13 to be communicated with the interior of the air spring, the automatic inflation under the pressing is realized, and the shock absorber rebounds upwards to the installation height due to the increase of air pressure. When the shock absorber is stretched, the sliding sleeve 11 is jacked by the jacking spring 18 to move upwards along with the connecting rod 7, the sliding block 19 drives the sliding plate 13 to rotate clockwise, the notch of the sliding plate 13 moves towards the exhaust port, the air inlet channel is closed, air in the air spring is discharged through the notch of the sliding plate 13 through the copper sleeve 15, stretching automatic exhaust is achieved, air pressure in the air spring is reduced, the shock absorber falls back to the installation height, when the shock absorber is located at the installation height, the notch of the sliding plate 13 is located between the air inlet and the exhaust port, and the air inlet and the exhaust port are located in the closed state.

(2) Performing oblique shock absorption

When the whole device is in an inclined vibration state, the bowl-shaped adjusting block 28 slides in the connecting plate 26 through the first connecting groove 27, meanwhile, the arc-shaped internal connecting plate 34 slides in the fixing plate 24 through the second connecting groove 32, the rubber material on the outer side of the internal connecting plate 34 enables the inside of the second connecting groove 32 to be in a sealing state, when the connecting rod 25 inclines in a small range, the adjusting block 28 pushes the lapping block 30, the lapping block 30 enables the pressure spring 31 to be compressed, the lapping block 30 pushes the adjusting block 28 through the pressure spring 31, and the whole device is enabled to reset, so that the influence on the whole device during inclined vibration is reduced;

(3) automatic reset for overlarge oblique amplitude

When the slant amplitude is too big and pressure spring 31 is not enough to make the whole reset of bumper shock absorber, inscribe board 34 can support the inside right side's of second intercommunication groove 32 trigger bar 41, support interior splice 36 through trigger bar 41, the inside extension spring 39 of connecting shell 35 is compressed, until through-hole 37 and venthole 38 coincide, at this moment, trachea 40 is through-hole 37 and venthole 38 and the inside intercommunication of connecting shell 35 and second intercommunication groove 32, alright aerify to the inside of fixed plate 24 this moment, thereby make the device also can automatic re-setting when the slant amplitude is too big, reduce the harmful effects of slant vibration to the bumper shock absorber, thereby promote the holistic life-span of device.

In summary, the following steps: the invention has the beneficial effects that the device is improved on the basis of the prior art, the air spring shock absorber for suspending the truck cab has better effect, the invention is improved on the basis of the prior art, the comfort and the durability of the shock absorber are improved by adding the air charging and discharging function in the air spring shock absorber, the prior installation mode is replaced, the product upgrade is promoted, the product is improved on the basis of the prior pneumatic sliding plate 13-type directional valve control technology, the air flow and flow rate control model is established according to the working condition of the air spring shock absorber and is subjected to simulation research, the theoretical basis is provided for the optimization of the automatic air charging and discharging performance of the air spring shock absorber, the air inlet and the air outlet are arranged at the bottom of the air spring and are communicated with the interior, and a valve core is respectively arranged in the air spring and the rubber sealing ring, The shock absorber comprises a copper sleeve 15, a rubber sealing ring is used for sealing between the end face of the valve core and a sliding plate 13, an arc-shaped airflow groove is formed in the sliding plate 13, when the shock absorber is stretched and compressed, an internal sliding sleeve 11 moves up and down, a trapezoidal boss on the sleeve can control the sliding plate 13 to rotate through a sliding block 19, and air intake and air exhaust of the air spring shock absorber are controlled through the connection and disconnection of the airflow groove on the sliding plate 13 and the valve core in the rotating process, so that the shock absorber obtains higher durability and comfort;

the device can adjust the damping component at multiple angles through the spherical hinge mechanism consisting of the spherical bowl connecting component, so that the device can damp from different positions, when oblique vibration is carried out, the device can automatically reduce the amplitude of vibration during the oblique vibration by utilizing the elastic component in the device, the air pipe 40 and the air pressure adjusting component consisting of the tension spring 39, when the device is used, the device can automatically inflate the inner part of the device when the shaking amplitude is too large and the inclination angle is too large, so that the device is integrally reset, the device can ensure that the whole body cannot have too large inclination angle, the strain of the limiting component in the air spring shock absorber is reduced, the using effect of the device is improved, the spherical hinge mechanisms on the upper side and the lower side can simultaneously act on the balancing rod, so that the connecting rod 25 is always in a vertical state in the working process, therefore, the shock absorber can absorb shock in the inclined direction and can ensure that the whole device is in a vertical state.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.