CN214565246U - Be used for drawing trailer antiskid braced system - Google Patents

Abstract

The utility model discloses a be used for drawing trailer antiskid braced system belongs to and draws trailer suspension field. The purpose is that the traction trailer driving wheel is little with ground frictional force when solving and drawing the trailer and climbing, the phenomenon that the tire skidded appears easily, is unfavorable for safe driving. Technical scheme provides a be used for drawing trailer antiskid braced system, including last supporting seat, first mounting panel, air spring, second mounting panel, undersetting seat and gas storage device, one side of first mounting panel is connected with the bottom of last supporting seat, the one end of air spring is installed on the opposite side of first mounting panel, one side and the top of undersetting seat of second mounting panel are connected, the other end of air spring is installed on the opposite side of second mounting panel, be equipped with the gas pocket on the first mounting panel, gas pocket and the inside intercommunication of air spring, the gas storage device is connected with the gas pocket.

Description

Be used for drawing trailer antiskid braced system

Technical Field

The utility model relates to a pull trailer suspension field, especially relate to a be used for pulling trailer antiskid braced system.

Background

In road transportation, the traction trailer is widely used due to the advantages of large loading capacity, high utilization rate, wide application range, low energy consumption and the like, is an important vehicle type for road transportation, and is an important and simple means for improving economic benefit by adopting automobile train transportation. The method has the advantages of rapidness, mobility, flexibility, safety and the like; the zone transportation can be conveniently realized. The most common trailer is composed of a tractor and a trailer, the tractor is used for driving the trailer, a traction saddle arranged at the rear part of the tractor is hinged with a traction pin at the front part of the trailer, the trailer is dragged to run, the trailer generally has no driving function and driving device, only a few special trailers have the driving function, but the trailer with the driving function is rarely applied in highway logistics due to the factors of complex structure, heavy weight, high cost, high oil consumption and the like.

The highway logistics trailer is divided into flat plate type, gooseneck type, framework type, baffle type, window grid type, tank type, van type and other structures due to different loaded goods, a suspension system is divided into steel plate suspension and air suspension, and according to the difference of load capacity, the trailer also has the difference of one axle, two axles, three axles and multiple axles, wherein the three-axle trailer accounts for more than 95%. The two-axle and above-mentioned trailer have a common characteristic that the phenomenon of skidding of the tire of the tractor is easy to occur when the trailer encounters a wet slippery slope or a steep slope, particularly the skidding is easy to occur when the trailer starts on an ice and snow or muddy slope, so that a lot of traffic jam and accidents are also caused, and hidden dangers are brought to safe driving.

In order to slow down or eliminate the phenomenon of skidding of tires on an uphill slope or on an ice and snow muddy road of most multi-axle tractor trailers, the prior technical scheme is that a driving system is added on an axle of a trailer, a driving source is connected with a trailer driving axle through a tractor rear axle added transmission shaft to realize axle-mounted drive, and the other driving source is used for driving a hydraulic motor to drive the trailer driving axle through a hydraulic pump.

The utility model patent with the application number of CN201921042090.5 discloses a special mountain semi-mounted rear-drive propulsion mechanism. However, the disadvantages of this patent are: 1. the structure is complex, a set of driving mechanism needs to be independently installed on the trailer, and the weight of the trailer body is increased; 2. the energy consumption is high, and the driving mechanism needs to be separately powered; 3. the mechanism does not meet the requirements of light weight, energy conservation and emission reduction of highway logistics.

Disclosure of Invention

The utility model aims to overcome the above-mentioned problem that prior art exists, a be used for drawing trailer antiskid braced system is proposed, through lever principle, shift the focus that the trailer moved backward when the trailer climbing to the front portion again, make the tractor bear the weight of and increase, drive tire and ground friction increase, just be difficult for appearing the phenomenon of skidding of drive tire, be favorable to safe driving, this system can also cooperate axle hoisting system to use simultaneously, can reduce tire wear and oil consumption, more do benefit to energy saving and emission reduction.

The utility model discloses a following technical scheme realizes:

the utility model provides a be used for drawing trailer antiskid braced system which characterized in that: including last supporting seat, first mounting panel, air spring, second mounting panel, under bracing seat and gas storage device, one side of first mounting panel is connected with the bottom of last supporting seat, the one end of air spring is installed on the opposite side of first mounting panel, one side of second mounting panel is connected with the top of under bracing seat, the other end of air spring is installed on the opposite side of second mounting panel, be equipped with the gas pocket on the first mounting panel, gas pocket and the inside intercommunication of air spring, gas storage device and gas pocket connection.

Go up the supporting seat and be "nearly" font, including roof, first backup pad, second backup pad, first curb plate and second curb plate, one side of roof is connected with one side of first backup pad, the opposite side of roof is connected with one side of second backup pad, the opposite side and the first curb plate of first backup pad are connected, the opposite side and the second curb plate of second backup pad are connected.

A first round bearing plate is arranged between the first mounting plate and the air spring.

And a second round bearing plate is arranged between the second mounting plate and the air spring.

The bottom end of the lower supporting seat is provided with a first installation limiting seat, the other end of the bottom of the lower supporting seat is provided with a second installation limiting seat, and installation grooves are formed in the first installation limiting seat and the second installation limiting seat.

A first reinforcing rib is arranged between the upper supporting seat and the first mounting plate.

And a second reinforcing rib is arranged between the lower supporting seat and the second mounting plate.

Go up and be equipped with the third strengthening rib between supporting seat and the first mounting panel, be equipped with "U" shape breach on the third strengthening rib, the "U" shape breach of third strengthening rib is located directly over the gas pocket.

The fixing device also comprises a first fixing plate, a second fixing plate and a plurality of fixing bolts, wherein a plurality of first fixing holes are arranged on the first mounting plate, the top of the air spring is provided with a plurality of second fixing holes matched with the first fixing holes, the second mounting plate is provided with a plurality of third fixing holes, a plurality of fourth fixing holes matched with the third fixing holes are formed in the bottom of the air spring, a plurality of fifth fixing holes matched with the second fixing holes are formed in the first fixing plate, the second fixing plate is provided with a plurality of sixth fixing holes matched with the fourth fixing holes, the first fixing plate sequentially passes through the fifth fixing holes, the second fixing holes and the first fixing holes through fixing bolts and is arranged on the inner side of the top of the air spring, and the second fixing plate sequentially passes through the sixth fixing hole, the fourth fixing hole and the third fixing hole through fixing bolts and is arranged on the inner side of the bottom of the air spring.

One end of the lower supporting seat is provided with a first extending portion, the other end of the lower supporting seat is provided with a second extending portion, and the first extending portion and the second extending portion are both provided with limiting buffer blocks.

And one side of the lower supporting seat is provided with a height limit switch triggering support.

The air spring air storage device is characterized by further comprising a first switch, a second switch, a high-pressure regulating valve, a first electromagnetic air valve, a quick release valve, a low-pressure regulating valve, a second electromagnetic air valve, a pressure limiting valve, a first limiting switch, a second limiting switch and a plurality of sections of air path pipelines, wherein the first switch, the high-pressure regulating valve, the first electromagnetic air valve, the quick release valve, the air spring and the air storage device are sequentially connected through air path pipelines respectively, the high-pressure regulating valve, the low-pressure regulating valve and the air spring are sequentially connected through air path pipelines respectively, one end of the second electromagnetic air valve is connected with the air path pipeline between the first electromagnetic air valve and the quick release valve through the air path pipeline, the other end of the second electromagnetic air valve is connected with the air path pipeline between the air spring through the air path pipeline, one end of the pressure limiting valve is connected with the quick release valve through the air path pipeline, and the other end of the pressure limiting valve is connected with the air path pipeline between the air spring through the air path pipeline, the second switch is sequentially electrically connected with the first electromagnetic air valve and the second limit switch, and the second switch is also sequentially electrically connected with the second electromagnetic air valve and the first limit switch.

Compared with the prior art, the utility model, its advantage lies in:

1. the utility model discloses a be used for drawing trailer antiskid braced system, including last supporting seat, first mounting panel, air spring, second mounting panel and under bracing seat, be equipped with the setting of gas pocket on the first mounting panel, not only have rational in infrastructure, with low costs and convenient and practical's advantage, can also support the trailer through air spring, utilize lever principle to shift the focus that the trailer moved backward when the trailer climbing forward the front portion again, make the tractor bear weight increase, drive tire and ground friction increase, the phenomenon of skidding just difficult appearance drive tire is favorable to safe driving, this system can also cooperate axle hoisting system to use simultaneously, can reduce tire wear and reduce the oil consumption, more do benefit to energy saving and emission reduction.

2. The utility model discloses an upper supporting seat is "nearly" font, including the setting of roof, first backup pad, second backup pad, first curb plate and second curb plate for upper supporting seat structure is more firm reliable.

3. The utility model discloses a first circular board and the circular setting of accepting the board of second of accepting, the staff of being convenient for carries out the installation dismantlement work of air spring and first mounting panel and second mounting panel, makes the utility model discloses overall structure is more firm reliable.

4. The utility model discloses a bottom of the under bracing seat one end is equipped with the spacing seat of first installation, and the bottom of the under bracing seat other end is equipped with the spacing seat of second installation, is equipped with the setting of mounting groove on the spacing seat of first installation and the spacing seat of second installation, and the staff of being convenient for on the one hand goes on the utility model discloses with the installation or the dismantlement of trailer, when on the other hand passes through the mounting groove with the spacing seat of first installation and the spacing seat of second installation and installs the trailer, the mounting groove has spacing effect, can increase the steadiness of under bracing seat, ensures that the under bracing seat does not take place the displacement on required position, and then strengthens the utility model discloses overall structure's steadiness.

5. The utility model discloses a first strengthening rib and under bracing seat and with the second strengthening rib, further strengthen the utility model discloses overall structure's steadiness and easy access dismouting.

6. The utility model discloses a third strengthening rib for the steadiness of being connected between support seat and the first mounting panel is strengthened further, and be equipped with "U" shape breach on the third strengthening rib, make things convenient for the staff to pass "U" shape breach and gas pocket connection through gas storage device's gas circuit pipeline.

7. The utility model discloses a first fixed plate, second fixed plate and a plurality of fixing bolt's setting can be strengthened the utility model discloses the steadiness of structure makes it more firm reliable to the easy access dismouting.

8. The utility model discloses a spacing buffer block's setting is carried on spacingly to the distance between last supporting seat and the under bracing seat, and right the utility model discloses self plays certain guard action, and the axle shifts up when avoiding not aerifing when the trailer meets unsmooth road conditions and leads to the utility model discloses take place to damage.

9. The utility model discloses a high limit switch triggers the setting of support, makes things convenient for the staff to carry out height control and installation dismantlement.

10. The utility model discloses a gas storage device, first switch, second switch, high pressure regulating valve, first electromagnetism pneumatic valve, quick release valve, low pressure air-vent valve, second electromagnetism pneumatic valve, voltage limiting valve, first limit switch, second limit switch and multistage gas circuit pipeline, the person of facilitating the use is right the utility model discloses control, open or close according to actual conditions when driving the utility model discloses a gas storage device, first switch, second switch, high pressure regulating valve, first electromagnetism pneumatic valve, quick release valve, low pressure air-vent valve, second electromagnetism pneumatic valve, voltage limiting valve, first limit switch, second limit switch and multistage gas circuit pipeline are convenient for the user.

11. The utility model discloses when using, only need open the second switch rear system in the driver's cabin just can automatic work, shift the focus that the trailer moved backward to the front portion again, make tractor bearing weight increase, drive tire and ground frictional force increase, just be difficult for appearing the drive tire phenomenon of skidding, close the second switch after, the gas in the air spring passes through the pipeline and gets rid of the end operating condition through the pressure limiting valve quick release valve, and the operation is swift convenient, has fine anti-skidding effect.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, 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 invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a left side view of fig. 1.

FIG. 3 is a top view of FIG. 1

Fig. 4 is a perspective view of fig. 1.

Fig. 5 is a cross-sectional view of fig. 2A-a.

Fig. 6 is a connection relationship diagram of the gas circuit pipeline of the present invention.

Fig. 7 is a circuit control relationship diagram of the present invention.

Reference numerals: 11 top plate, 12 first backup pad, 13 second backup pad, 14 first curb plate, 15 second curb plate, 16 first circular accepting board, 2 first mounting panels, 21 gas pocket, 22 first strengthening rib, 23 third strengthening rib, 231 "U" shape breach, 3 air spring, 4 second mounting panels, 41 second strengthening rib, 5 lower sprag seats, 51 second circular accepting board, 52 first installation spacing seat, 53 second installation spacing seat, 54 mounting grooves, 55 first extension, 56 second extension, 57 spacing buffer block, 58 high limit switch trigger support, 6 first fixed plates, 7 second fixed plates.

Detailed Description

The invention will be further described with reference to the accompanying drawings:

to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.

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 may not be further defined and explained in subsequent figures.

See fig. 1-7. The embodiment describes an antiskid supporting system for a trailer, which comprises an upper supporting seat, a first mounting plate 2, an air spring 3, a second mounting plate 4, a lower supporting seat 5 and a gas storage device, wherein one side of the first mounting plate 2 is connected with the bottom of the upper supporting seat, one end of the air spring 3 is installed on the other side of the first mounting plate 2, one side of the second mounting plate 4 is connected with the top of the lower supporting seat 5, the other end of the air spring 3 is installed on the other side of the second mounting plate 4, the first mounting plate 2 is provided with a gas hole 21, the gas hole 21 is communicated with the inside of the air spring 3, the gas storage device is connected with the gas hole 21, in the embodiment, the upper supporting seat is used for being connected with a frame of the trailer, the specific connection mode is that the two ends of the upper supporting seat are respectively welded to the frame, and the connection mode is simple and firm, the air storage device is convenient for workers to carry out disassembly and assembly work, the first mounting plate 2 is used as a connecting plate for connecting the upper supporting seat and the air spring 3, the first mounting plate 2 and the upper supporting seat are connected through screws, matched threaded holes are formed in the first mounting plate 2 and the upper supporting seat, the first mounting plate 2 and the upper supporting seat are fixedly connected through the threaded holes through the screws and nuts, the lower supporting seat 5 is mounted on an axle of a trailer, the second mounting plate 4 is used as a connecting plate for connecting the lower supporting seat 5 and the air spring 3, matched threaded holes are also formed in the 4 lower supporting seats 5 of the second mounting plate, the lower supporting seat 5 and the second mounting plate 4 are fixedly connected through the threaded holes through the screws and the nuts, the air spring 3 is mounted between the first mounting plate 2 and the second mounting plate 4, the air storage device is mounted on a trailer frame and can store air and charge air into the air spring 3 when needed, the air storage device is connected with the air spring 3 through an air channel pipeline, one end of the air channel pipeline is connected with the air storage device, the other end of the air channel pipeline penetrates through the air hole 21 on the first mounting plate 2 and then is communicated with the interior of the air spring 3, a user can charge air into the air spring 3 through the air storage device to change the height of the air spring 3, the set distance between the upper supporting seat and the lower supporting seat 5 is further reached, the height behind the trailer is raised when the trailer climbs, part of the weight of the trailer which moves backwards is transferred to a driving wheel on a front tractor by utilizing the lever principle, the phenomenon that the driving tire slips when the friction between the driving tire and the ground is reduced is avoided, the safe driving is facilitated, the air in the air spring 3 is discharged after the trailer passes through a climbing road section, the normal height behind the trailer is restored, and the device is started to be matched with an axle lifting system to lift other axles of the trailer when the trailer is lightly loaded or unloaded, the abrasion of the tires of the lifted axle can be reduced, the oil consumption can be reduced, and the transportation cost can be reduced. In this embodiment, the type of the air spring 3 is 2B6910 which is currently available on the market, and besides the air spring of this type, an air spring of 2B9-223, 2B9-200 or 2B5334 may also be used, and it should be noted that the above type of air spring is not limited to this embodiment, and besides the above type, a person skilled in the art can conventionally select other types of air springs in the prior art according to actual needs to apply to the present invention, and the person skilled in the art does not need to make creative work for selecting and applying the air spring.

Specifically, go up the supporting seat and be "nearly" font, including roof 11, first backup pad 12, second backup pad 13, first curb plate 14 and second curb plate 15, one side of roof 11 is connected with one side of first backup pad 12, the opposite side of roof 11 is connected with one side of second backup pad 13, the opposite side of first backup pad 12 is connected with first curb plate 14, the opposite side and the second curb plate 15 of second backup pad 13 are connected. In this embodiment, go up the supporting seat and pass through roof 11, first backup pad 12, second backup pad 13, first curb plate 14 and 15 integrated into one piece constitutions in this embodiment "nearly" font upper supporting seat, integrated into one piece's structure has increased this embodiment overall structure's steadiness, reduces the whole weight of this embodiment, makes things convenient for the staff to carry out the dismouting work of this embodiment, has reduced the oil consumption, has practiced thrift the cost.

Specifically, a first circular receiving plate 16 is arranged between the first mounting plate 2 and the air spring 3, and a second circular receiving plate 51 is arranged between the second mounting plate 4 and the air spring 3. In the present embodiment, the first circular receiving plate 16 is used as a connecting plate to connect the first mounting plate 2 and the air spring 3, the second receiving plate 51 is used as a connecting plate to connect the second mounting plate 4 and the air spring 3, and the first circular receiving plate 16 and the second circular receiving plate 51 can simplify the installation operation of the air spring 3 by the worker, so that the worker can install the air spring 3 firmly to the corresponding position on the present embodiment quickly and accurately.

Specifically, one end of the bottom of the lower support seat 5 is provided with a first installation limiting seat 52, the other end of the bottom of the lower support seat 5 is provided with a second installation limiting seat 53, and the first installation limiting seat 52 and the second installation limiting seat 53 are provided with installation grooves 54. 5 bottom both ends of under bracing seat are equipped with spacing seat 52 of first installation and the spacing seat 53 of second installation respectively, are equipped with mounting groove 54 on spacing seat 52 of first installation and the spacing seat 53 of second installation, should set up the staff of being convenient for more and carry out the utility model discloses with the dismouting work of trailer, when the installation directly aim at the axle both sides of trailer with mounting groove 54 respectively with mounting groove card go into the axle rather than cooperate can, firmly block under bracing seat 5 through trailer and axle, ensure that under bracing seat 5 does not take place the displacement on required position, and then strengthen the utility model discloses overall structure's steadiness.

Specifically, be equipped with a first strengthening rib 22 between upper bracket and the first mounting panel 2, be equipped with two second strengthening ribs 41 between lower carriage 5 and the second mounting panel 4. First strengthening rib 22 welds the middle part in last supporting seat and first mounting panel 2 one side in this embodiment for improve the steadiness of last supporting seat and first mounting panel 2, second strengthening rib 41 welds the middle part in bottom suspension 5 and second mounting panel 4 both sides respectively, is used for improving the steadiness of bottom suspension 5 and second mounting panel 4, and first strengthening rib 22 and second strengthening rib 41 can further increase this embodiment overall structure's steadiness, avoid the utility model discloses during the driving because of jolting vibrations lead to overall structure shakiness to take place to damage even.

Specifically, be equipped with third strengthening rib 23 between last supporting seat and the first mounting panel 2, be equipped with "U" shape breach 231 on the third strengthening rib 23, the "U" shape breach 231 of third strengthening rib 23 is located directly over the gas pocket 21. The third reinforcing rib 23 in this embodiment is welded in the middle of the other side of the upper supporting seat and the first mounting plate 2, so as to further increase the stability of the whole structure of this embodiment, and the third reinforcing rib 23 is arranged above the air hole 21, so that the third reinforcing rib 23 is provided with a "U" shaped notch 231 for the passage of the air pipeline.

The air spring fixing device comprises two first fixing plates 6, two second fixing plates 7 and four fixing bolts, wherein two first fixing holes are formed in the first mounting plate 2, two second fixing holes matched with the first fixing holes are formed in the top of the air spring 3, two third fixing holes are formed in the second mounting plate 4, two fourth fixing holes matched with the third fixing holes are formed in the bottom of the air spring 3, two fifth fixing holes matched with the second fixing holes are formed in the first fixing plates 6, two sixth fixing holes matched with the fourth fixing holes are formed in the second fixing plates 7, the first fixing plates 6 sequentially penetrate through the fifth fixing holes, the second fixing holes and the first fixing holes to be mounted on the inner side of the top of the air spring 3, and the second fixing plates 7 sequentially penetrate through the sixth fixing holes, The fourth fixing hole and the third fixing hole are arranged on the inner side of the bottom of the air spring 3. In this embodiment, the first fixing plate 6 and the second fixing plate 7 are arc-shaped plates, and the first fixing plate 6 is used for improving the stability of the top of the air spring 3 and the upper supporting seat; the second fixing plate 7 is used for improving the stability of the bottom of the air spring 3 and the lower support seat 5.

Specifically, one end of the lower support seat 5 is provided with a first extending portion 55, the other end of the lower support seat 5 is provided with a second extending portion 56, and the first extending portion 55 and the second extending portion 56 are both provided with a limiting buffer block 57. In this embodiment, spacing buffer block 57 is the rectangle massive structure that elastic material such as rubber and silica gel made, can carry on spacingly to the distance between upper bracket and the lower support seat 5, avoids when air spring 3 does not aerify the trailer to meet unsmooth road conditions axle and shifts up and lead to this embodiment to take place to damage, is equipped with a supporting bench in this embodiment on first extension 55 and second extension 56 respectively, fixes and supports spacing buffer block 57 through a supporting bench.

Specifically, the lower support base 5 is provided with a height limit switch trigger bracket 58 on one side, so that the installation of the height limit switch is convenient for the workers.

Specifically, the control system of this embodiment includes a first switch, a second switch, a high-pressure regulating valve, a first electromagnetic air valve, a quick release valve, a low-pressure regulating valve, a second electromagnetic air valve, a pressure limiting valve, a first limit switch, a second limit switch, and a plurality of sections of air passage pipes, where the first switch, the high-pressure regulating valve, the first electromagnetic air valve, the quick release valve, the air spring 3, and the air storage device are sequentially connected through an air passage pipe, the high-pressure regulating valve, the low-pressure regulating valve, and the air spring 3 are sequentially connected through an air passage pipe, one end of the second electromagnetic air valve is connected with the air passage pipe between the first electromagnetic air valve and the quick release valve through an air passage pipe, the other end of the second electromagnetic air valve is connected with the air passage pipe between the air spring 3 through an air passage pipe, one end of the pressure limiting valve is connected with the quick release valve through an air passage pipe, and the other end of the pressure limiting valve is connected with the air passage pipe between the air spring 3 through an air passage pipe, the second switch is sequentially electrically connected with the first electromagnetic air valve and the second limit switch, and the second switch is also sequentially electrically connected with the second electromagnetic air valve and the first limit switch.

In the embodiment, a first switch is arranged on a trailer, a user can switch on or off an air source entering the system by controlling the first switch to facilitate maintenance, a second switch is arranged in a cab, the user can control the second switch to open or close the system, a high-pressure regulating valve and a low-pressure regulating valve are both regulating valves, the regulating valves are also named as control valves, and in the field of industrial automation process control, a final control element for changing process parameters such as medium flow, pressure, temperature, liquid level and the like is operated by power by receiving a control signal output by a regulating control unit; the first electromagnetic gas valve in the embodiment has the power-off exhaust function, the electromagnetic gas valve is a normally-closed low-energy-consumption electromagnetic gas valve, the gas outlet of the gas valve is closed when the electromagnetic valve is powered on, the gas enters the electromagnetic valve from the gas inlet, the gas is supplied to the quick release valve and the second electromagnetic valve through the gas outlet connecting pipeline for supplying gas, the electromagnetic valve is closed after the power-off, the gas in the gas outlet connecting pipeline is closed and is exhausted into the atmosphere through the gas outlet of the electromagnetic valve,

the second electromagnetic air valve is a normally closed low-energy consumption electromagnetic air valve. When the power is on, the air valve is opened for ventilation, and is closed after the power is off, and the gas in the gas outlet connecting pipeline cannot be discharged from the electromagnetic valve after the power is off;

the quick-acting valve is a mechanical valve body with the functions of air inlet non-return and automatic air exhaust. When gas enters the valve, the exhaust port is automatically closed, and the gas enters the corresponding connecting pipeline through the gas outlet. When the gas at the gas inlet end is exhausted, the gas outlet is automatically opened, and the gas in the gas outlet connecting pipeline is exhausted into the atmosphere from the gas outlet. After the system is closed, the first electromagnetic valve only needs to exhaust a small amount of gas in a connecting pipeline between the first electromagnetic valve and the quick release valve, so that the pollution to the electromagnetic valve when a large amount of gas is exhausted through the first electromagnetic valve can be reduced, the service life of the first electromagnetic valve can be prolonged, and the stability and reliability of the system are ensured; the pressure limiting valve is a one-way pressure limiting valve, and the air pressure passes through the valve in a one-way mode when exceeding the set pressure; first limit switch and second limit switch belong to normal open type mechanical switch, and the input line of switch is connected the output wire with solenoid valve power output line and is connect the negative pole, is in normal open state when the frame does not reach with the axle and sets for when high, reaches and sets for high back trigger switch, and the switch is in the off-state.

It should be noted that, the first switch, the second switch, the high-pressure regulating valve, the first electromagnetic air valve, the quick release valve, the low-pressure regulating valve, the second electromagnetic air valve, the pressure limiting valve, the first limit switch and the second limit switch that are involved in this embodiment are all directly applied to the prior art, and this embodiment does not involve creation or improvement thereof, and therefore, redundant description thereof is not repeated in this embodiment. Specifically, the model of the first switch and the second switch used in this embodiment is PB-22E60, the model of the high-pressure regulating valve is T969H, the model of the first electromagnetic air valve and the second electromagnetic air valve is DH261, the model of the quick release valve is 3533N1-010, the model of the low-pressure regulating valve is SR200, the model of the pressure limiting valve is 095420 and 0280, and the model of the first limit switch and the second limit switch is WLNJ-30-N, it should be noted that the specific models of the above-mentioned components used in this embodiment are not limitations of the present invention, and besides the above-mentioned components, those skilled in the art can select other components that can be applied to the various models of the present invention in the prior art without any creative labor for this purpose.

The working principle of the embodiment is as follows:

the driver opens the control switch in the cab, namely the second switch, so that the first electromagnetic air valve, the second electromagnetic air valve and the power line are in a charged state, and if the first limit switch and the second limit switch are both in a closed state at the moment, the first electromagnetic valve and the second electromagnetic valve are both opened. The air enters the air spring through the connecting pipelines of the air storage device, the first switch, the high-pressure regulating valve, the first electromagnetic air valve and the second electromagnetic air valve in sequence, and the air spring lifts the rear part of the trailer after being inflated. When the height reaches the set height of the first limit switch, the first limit switch is powered off after working, the air valve is closed after the second electromagnetic valve is powered off, and the trailer keeps the height. The air pressure in the air spring is automatically adjusted to be in a high-low working state by the load of the trailer.

After the second switch is closed, the first electromagnetic air valve and the second electromagnetic air valve are in a closed state, the exhaust port of the first electromagnetic valve is opened to exhaust gas in the first electromagnetic valve and the pipeline of the quick release valve, after the gas is exhausted, the air inlet and the air outlet of the quick release valve are automatically blocked, the exhaust port of the quick release valve is opened to exhaust gas exceeding the set pressure of the one-way pressure limiting valve in the air spring through the connecting pipeline, the one-way pressure limiting valve and the quick release valve, and the working state is finished.

When the gas pressure in the air spring is lower than the pressure set by the low-pressure regulating valve, the low-pressure regulating valve is automatically opened, gas enters the air spring through the low-pressure regulating valve and the connecting pipeline to enable the air spring to be in an automatic low-pressure protection state, and if the air pressure in the air spring is not high, the air spring can loosen and rub related parts to cause damage.

When the first height limit switch is in an open state after failure or the second electromagnetic valve is in a failure state, the air spring continues to ascend to trigger the second height limit switch, after the second height limit switch is opened, the first electromagnetic air valve is powered off and closed, the first electromagnetic air valve is in a powered off and closed state, the exhaust port of the first electromagnetic valve is opened to exhaust gas in the first electromagnetic valve and the pipeline of the quick release valve, after the gas is exhausted, the gas inlet and the gas outlet of the quick release valve are automatically blocked, and the exhaust port of the quick release valve is opened to exhaust the gas in the air spring through the connecting pipeline, the one-way pressure limiting valve and the quick release valve, so that the height of the trailer is reduced, and the air spring and related components are protected.

The utility model discloses be not limited to above-mentioned embodiment, according to the utility model discloses an other embodiments that technical scheme obtained all should fall into the utility model discloses an in the protection scope.

Claims (10)

1. The utility model provides a be used for drawing trailer antiskid braced system which characterized in that: including last supporting seat, first mounting panel (2), air spring (3), second mounting panel (4), under bracing seat (5) and gas storage device, one side of first mounting panel (2) is connected with the bottom of last supporting seat, the one end of air spring (3) is installed on the opposite side of first mounting panel (2), one side of second mounting panel (4) is connected with the top of under bracing seat (5), the other end of air spring (3) is installed on the opposite side of second mounting panel (4), be equipped with gas pocket (21) on first mounting panel (2), gas pocket (21) and the inside intercommunication of air spring (3), gas storage device is connected with gas pocket (21).

2. The anti-skid support system for a tractor trailer of claim 1, wherein: go up the supporting seat and be "nearly" font, including roof (11), first backup pad (12), second backup pad (13), first curb plate (14) and second curb plate (15), one side of roof (11) is connected with one side of first backup pad (12), the opposite side of roof (11) is connected with one side of second backup pad (13), the opposite side and the first curb plate (14) of first backup pad (12) are connected, the opposite side and the second curb plate (15) of second backup pad (13) are connected.

3. The anti-skid support system for a tractor trailer of claim 1, wherein: a first circular bearing plate (16) is arranged between the first mounting plate (2) and the air spring (3), and a second circular bearing plate (51) is arranged between the second mounting plate (4) and the air spring (3).

4. The anti-skid support system for a tractor trailer of claim 1, wherein: the supporting device is characterized in that one end of the bottom of the lower supporting seat (5) is provided with a first installation limiting seat (52), the other end of the bottom of the lower supporting seat (5) is provided with a second installation limiting seat (53), and the first installation limiting seat (52) and the second installation limiting seat (53) are provided with installation grooves (54).

5. The anti-skid support system for a tractor trailer of claim 1, wherein: go up and be equipped with first strengthening rib (22) between supporting seat and first mounting panel (2), be equipped with second strengthening rib (41) between lower carriage (5) and second mounting panel (4).

6. The anti-skid support system for a tractor trailer of claim 1, wherein: go up and be equipped with third strengthening rib (23) between supporting seat and first mounting panel (2), be equipped with "U" shape breach (231) on third strengthening rib (23), "U" shape breach (231) of third strengthening rib (23) are located directly over air hole (21).

7. The anti-skid support system for a tractor trailer of claim 1, wherein: still include first fixed plate (6), second fixed plate (7) and a plurality of fixing bolt, be equipped with a plurality of first fixed orificess on first mounting panel (2), air spring (3) top is equipped with a plurality of second fixed orificess that match with first fixed orifices, be equipped with a plurality of third fixed orificess on second mounting panel (4), air spring (3) bottom is equipped with a plurality of fourth fixed orificess that match with the third fixed orifices, be equipped with a plurality of fifth fixed orifices that match with the second fixed orifices on first fixed plate (6), be equipped with a plurality of sixth fixed orifices that match with the fourth fixed orifices on second fixed plate (7), first fixed plate (6) are passed fifth fixed orifices, second fixed orifices and first fixed orifices in proper order through fixing bolt and are installed at air spring (3) top inboardly, second fixed plate (7) are passed sixth fixed orifices in proper order through fixing bolt, first fixed orifices, The fourth fixing hole and the third fixing hole are arranged on the inner side of the bottom of the air spring (3).

8. The anti-skid support system for a tractor trailer of claim 1, wherein: one end of the lower supporting seat (5) is provided with a first extending part (55), the other end of the lower supporting seat (5) is provided with a second extending part (56), and the first extending part (55) and the second extending part (56) are both provided with a limiting buffer block (57).

9. The anti-skid support system for a tractor trailer of claim 1, wherein: and one side of the lower supporting seat (5) is provided with a height limit switch triggering support (58).

10. The anti-skid support system for the trailer as claimed in any one of claims 1 to 9, wherein: the air storage device is characterized by further comprising a first switch, a second switch, a high-pressure regulating valve, a first electromagnetic air valve, a quick release valve, a low-pressure regulating valve, a second electromagnetic air valve, a pressure limiting valve, a first limiting switch, a second limiting switch and a plurality of sections of air path pipelines, wherein the first switch, the high-pressure regulating valve, the first electromagnetic air valve, the quick release valve, the air spring (3) and the air storage device are sequentially connected through air path pipelines respectively, the high-pressure regulating valve, the low-pressure regulating valve and the air spring (3) are sequentially connected through air path pipelines respectively, one end of the second electromagnetic air valve is connected with the air path pipeline between the first electromagnetic air valve and the quick release valve through the air path pipeline, the other end of the second electromagnetic air valve is connected with the air path pipeline between the air spring (3) through the air path pipeline, one end of the pressure limiting valve is connected with the quick release valve through the air path pipeline, and the other end of the pressure limiting valve is connected with the air path pipeline between the air spring (3) through the air path pipeline, the second switch is sequentially electrically connected with the first electromagnetic air valve and the second limit switch, and the second switch is also sequentially electrically connected with the second electromagnetic air valve and the first limit switch.

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