Utility model content
For the above mentioned problem of prior art, the utility model proposes a kind of air bag apparatus for controlling of lifting, overall structure
Simply, cost is low, easy to operate.
Specifically, the utility model proposes a kind of air bag apparatus for controlling of lifting, it is adaptable to motor bus, the motor bus bag
Underframe and suspension are included, the air bag apparatus for controlling of lifting includes,
Air bag, its top abuts in the bottom surface of the underframe, and its bottom abuts in the top surface of the suspension;
Altitude valve, is arranged on the underframe, and the altitude valve includes height valve body and is movably connected in the height
Elevating control arm on valve body;
Pneumatic rod, including the first expansion link and the second expansion link, the top of first expansion link is movably connected in institute
The one end of elevating control arm away from the height valve body is stated, the bottom of second expansion link is fixed on the suspension;
Compressed air source, to the air bag can convey compressed gas, the compressed air source and institute by the altitude valve
Stating pneumatic rod connection makes the upward top of first expansion link stretch and/or second expansion link is protruded out downwards.
According to one embodiment of the present utility model, the altitude valve also includes intake interface, outlet interface and leakage port,
The intake interface is connected with the compressed air source, and the outlet interface is connected with the air bag, and the leakage port is used to release
Put the gas in the air bag.
According to one embodiment of the present utility model, the pneumatic rod includes the first strut and is fixed on first support
Second strut of bar bottom, first expansion link is arranged in first strut, and second expansion link is arranged on described
In second strut.
According to one embodiment of the present utility model, the work compression resistance of the first strut 133 and the second strut 134 for 0~
8bar。
According to one embodiment of the present utility model, including the first air flue and the second air flue, the compressed air source passes through
First and second air flue is connected with first and second strut respectively, first air flue include series connection the first baroswitch and
First baroceptor, second air flue includes the second baroswitch and the second baroceptor of series connection.
According to one embodiment of the present utility model, first baroceptor is normally open, second air pressure
Sensor is normally off.
According to one embodiment of the present utility model, first and second baroswitch is respectively provided with pressure relief opening.
According to one embodiment of the present utility model, including the 3rd air flue, the compressed air source passes through the 3rd gas
Road is connected with the intake interface of the altitude valve.
According to one embodiment of the present utility model, the 3rd air flue is provided with check valve.
According to one embodiment of the present utility model, the compressed air source is compression barrel, its work compression resistance
10bar。
A kind of air bag apparatus for controlling of lifting that the utility model is provided, overall structure is simple, cost is low, easy to operate.
It should be appreciated that general description and the following detailed description more than the utility model is all exemplary and illustrative
, and it is intended that the utility model as claimed in claim provides further explanation.
Embodiment
Embodiment of the present utility model is described with detailed reference to accompanying drawing now.Now with detailed reference to of the present utility model excellent
Embodiment is selected, its example is shown in the drawings.In the case of any possible, identical will be used to mark in all of the figs to come
Represent same or analogous part.Although in addition, the term used in the utility model is selected from public term
Select, but some terms mentioned in the utility model specification are probably applicant to be selected by his or her judgement
, its detailed meanings explanation in the relevant portion of description herein.In addition, it is desirable to not only by used actual art
Language, and be also to the meaning that is contained by each term to understand the utility model.
Fig. 1 shows the structural representation of one embodiment of the present utility model.As illustrated, conventional, motor bus bag
Underframe 200 and suspension 300 are included, underframe 200 is the crossbeam structure assembly of bus's chassis, and suspension 300 is solid on bus's chassis
Determine the attachment structure of propons or back axle.A kind of air bag apparatus for controlling of lifting 100 is applied to motor bus, the air bag apparatus for controlling of lifting
100 include air bag 110, altitude valve 120, pneumatic rod 130 and compressed air source 140.
Specifically, air bag 110 is bus's body frame 200 and propons fixed on passenger-carrying chassis or the suspension of back axle
It is used for the tubbiness rubber air mattress of load-bearing between 300.The top of air bag 110 abuts in the bottom surface of underframe 200, and its bottom abuts in outstanding
The top surface of frame 300.The height of air bag 110 determines the distance between underframe 200 and suspension 300.Motor bus is in the process of running
The height of air bag 110 can be a kind of in higher, conventional and relatively low middle selection, to tackle different road conditions.Fig. 2A shows this reality
With the structural representation of support bar of the new one embodiment when air bag height is reduced, altitude valve and air bag.Fig. 2 B are shown
The structural representation of support bar in Fig. 2A.Fig. 3 A show one embodiment of the present utility model in air bag in conventional height
Under support bar, the structural representation of altitude valve and air bag.Fig. 3 B show the structural representation of the support bar in Fig. 3 A.Fig. 4 A
Show the structural representation of support bar of the one embodiment of the present utility model when air bag height rises, altitude valve and air bag
Figure.For example, in the case where passenger needs to get on or off the bus, the height of air bag 110 can be adjusted to relatively low, with reference to Fig. 2A so that
Underframe 200 and the distance between suspension 300 are shorter, are marked time so as to reduce objective door, facilitate passenger getting on/off;When running into rugged road
Face, water logging road surface need the height for lifting air bag 110 situations such as steamer is ferried up and down to higher position, with reference to Fig. 4 A so that
Underframe 200 and the distance between suspension 300 are longer, reduce the potential safety hazard of underframe 200;Conventional running section, with reference to Fig. 3 A,
Air bag 110 maintains conventional height.
Fig. 1 is turned round, altitude valve 120 is arranged on underframe 200.Altitude valve 120 includes height valve body 121 and activity even
It is connected on the elevating control arm 122 on height valve body 121.Elevating control arm 122 is used for the running status for controlling altitude valve 120,
Allow the height of motor bus air bag 110 in the process of running a kind of in higher, conventional and relatively low middle selection, to tackle difference
Road conditions, will specifically deploy hereinafter description.
Pneumatic rod 130 includes the first expansion link 131 and the second expansion link 132.The top activity of first expansion link 131 is even
The one end of elevating control arm 122 away from height valve body 121 is connected on, the bottom of the second expansion link 132 is fixed on suspension 300.
Compressed air source 140 can be by altitude valve 120 to the conveying compressed gas of air bag 110, to increase the height of air bag 110
Degree.Compressed air source 140 is connected with pneumatic rod 130, the first expansion link 131 is stretched upwards and/or is made the second expansion link 132 in top
Protrude out downwards.The position of elevating control arm 122 is adjusted by the first expansion link 131 and/or the action of the second expansion link 132, and then
The running status of altitude valve 120 is controlled to adjust the height of air bag 110.
Specifically, elevating control arm 122 is movably connected on tie point 123, elevating control arm 122 with pneumatic rod 130
Tie point 124 is movably connected on height valve body 121.Fig. 5 shows the elevating control of one embodiment of the present utility model
The operating diagram of arm.As illustrated, when the first expansion link 131, top is stretched upwards and/or the second expansion link 132 is protruded out downwards, gas
Dynamic strut 130 extends, the in-position A of tie point 123, and now tie point 123 is higher than tie point 124,122 dozens, elevating control arm
Altitude valve 120 is driven, compressed air source 140 is inflated to lift the height of air bag 110, air bag by altitude valve 120 to air bag 110
Corresponding lifting underframe 200 after 110 elevated heights, the lifting of underframe 200 then accordingly improves the position of altitude valve 120, works as tie point
124 reach with the same level of tie point 123 highly, and elevating control arm 122 closes altitude valve 120, and stopping is inflated to air bag 110
And keep the height of air bag 110.Tie point 124 is reached with the same level of tie point 123 highly, equivalent to tie point in Fig. 5 123
Positioned at position B, now tie point 123 is identical with the height and position of tie point 124, and altitude valve 120 is stopped and keeps air bag
110 height.Conversely, when tie point 123 drops to position C from position B, being shunk equivalent to pneumatic rod 130, tie point 123
In-position C, now tie point 123 is less than tie point 124, and the control altitude valve 120 of elevating control arm 122 is carried out to air bag 110
Deflate, accordingly lowerd underframe 200 after the height of air bag 110, the height reduction of air bag 110 to reduce, underframe 200 lands then corresponding
The position of altitude valve 120 is lowerd, when tie point 124 is arrived again at and the same level of tie point 123 height, elevating control arm
122 close altitude valve 120, stop deflating to air bag 110 and keeping the height of air bag 110.Thus, pneumatic rod 130 is passed through
Elongation and contraction, and then control the running status of altitude valve 120 to adjust the height of air bag 110, complete the height of air bag 110
Switch in relatively low, higher and normal mode.
It is preferred that altitude valve 120 also includes intake interface 125, outlet interface 126 and leakage port 127.Wherein, air inlet connecting
Mouth 125 is connected with compressed air source 140, and outlet interface 126 is connected with air bag 110, and leakage port is used to discharge the gas in air bag 110
Body.In the on-state, intake interface 125 is connected altitude valve 120 with outlet interface 126, and compressed air source 140 is sequentially passed through
Intake interface 125, outlet interface 126 are inflated to air bag 110;Altitude valve 120 in the deflated condition, outlet interface 126 and lose heart
Mouth 127 is connected, and air bag 110 sequentially passes through outlet interface 126 and leakage port 127 is deflated, to reduce the height of air bag 110;
Altitude valve 120 is under halted state, and outlet interface 126 is closed, and keeps the height of air bag 110.
It is preferred that pneumatic rod 130 includes the first strut 133 and is fixed on the second strut of the bottom of the first strut 133
134.First expansion link 131 is arranged in the first strut 133, and the second expansion link 132 is arranged in the second strut 134.Easily manage
Solution, pneumatic rod 130 can be the double end strut of integration, set the first expansion link 131 and directed downwardly second upward to stretch
Contracting bar 132.Pneumatic rod 130 can also be combined by the first strut 133 and the second strut 134, pass through first and second strut
133rd, 134 termination is attached, and the connection is being fastenedly connected for stud or double-threaded screw, is arranged on the of the first strut 133
The upward jacking of one expansion link 131, being arranged on the second expansion link 132 of the second strut 134 can protrude out downwards.
It is preferred that air bag apparatus for controlling of lifting 100 also includes the first air flue 150 and the second air flue 160.Compressed air source
140 are connected with first and second strut 133,134 respectively by first and second air flue 150,160.First air flue 150 includes the of series connection
One baroswitch 151 and the first baroceptor 152, the second air flue 160 include the second baroswitch 161 and the second gas of series connection
Pressure sensor 162.
More preferably, the first baroceptor 152 is normally open, and the second baroceptor 162 is normally off.
More preferably, the first baroswitch 151 has pressure relief opening 153, the compressed gas for discharging the first strut 133, with
Shrink the first expansion link 131.Second baroswitch 161 has pressure relief opening 163, the compressed gas for discharging the second strut 134,
To shrink the second expansion link 132.
It is preferred that air bag apparatus for controlling of lifting 100 also includes the 3rd air flue 170, compressed air source 140 passes through the 3rd air flue
170 connect with the intake interface 125 of altitude valve 120.More preferably, check valve 171 is provided with the 3rd air flue 170.Check valve 171
Control compressed air can only one-way flow valve body, its work compression resistance 10bar, the pipeline of its interface bore and the 3rd air flue 170
Matching connection.
It is preferred that compressed air source 140 is compression barrel, its work compression resistance 10bar.
The specific works formation of the air bag apparatus for controlling of lifting 100 provided with reference to all accompanying drawings the utility model is done
It is described in detail.Fig. 2A, 3A, 4A show respectively three kind situations of the height of air bag 110 under relatively low, routine and higher mode,
Corresponding Fig. 2 B, 3B, 4B show respectively that pneumatic rod 130 is shunk, the second expansion link of pneumatic rod 130 is protruded out downwards, gas
The first expansion link three kinds of situations that top is stretched upwards and the second expansion link is protruded out downwards of dynamic strut 130.
The first situation, control air bag 110 lifted, with adapt to rough ground, water logging road surface or up and down steamer ferry-boat etc. spy
Different road surface.
Driver opens the second baroswitch on the first baroswitch 151 and the second air flue 160 on the first air flue 150
161, compressed air is along first and second air flue 150,160 respectively through the first baroceptor 152 and the second baroceptor
162 enter the intracavitary of the first expansion link 131 of pneumatic rod 130 and the second expansion link 132, make the first expansion link 131 top upwards
Stretch and the second expansion link 132 is protruded out downwards, pneumatic rod reaches Fig. 4 B position.First expansion link 131 and elevating control arm
122 tie point 123 reaches the position A in Fig. 5, and now tie point 123 is higher than elevating control arm 122 and height valve body 121
Tie point 124, altitude valve 120 is opened.Compression barrel passes through the 3rd air inlet connecting of the air flue 170 through altitude valve 120
Mouth 125, outlet interface 126 are inflated to lift corresponding lifting after the height of air bag 110, the elevated height of air bag 110 to air bag 110
Underframe 200, the lifting of underframe 200 then accordingly improves the position of the tie point 124 of altitude valve 120, as shown in Figure 4 A, works as tie point
124 reach with the same level of tie point 123 highly, and elevating control arm 122 closes altitude valve 120, and outlet interface 126 is closed, stopped
The height of air bag 110 is only inflated and kept to air bag 110.Bus's body frame 200 and the distance between suspension 300 are longer, bus
Car is suitable for the state of Special Road.
Second of situation, control air bag 110 returns to conventional height, to adapt to the normally travel on conventional road surface.
Assuming that air bag 110 is run in the first case described above, the second air pressure that driver is opened on the second air flue 160 is opened
161 are closed, compressed air is stretched along the second air flue 160 by the second baroceptor 162 into the second of pneumatic rod 130
The intracavitary of bar 132, makes the second expansion link 132 (maintenance) protrude out downwards.
Driver simultaneously closes off the first baroswitch 151 on the first air flue 150, and first in pneumatic rod 130 stretches
The compressed air of the intracavitary of contracting bar 131 is deflated along the first air flue 150 by the pressure relief opening 153 of the first baroswitch 151, makes the
One expansion link 131 shrinks, and pneumatic rod 130 reaches Fig. 3 B position.The connection of first expansion link 131 and elevating control arm 122
Point 123 reaches the position B in Fig. 5, now tie point of the tie point 123 less than elevating control arm 122 and height valve body 121
124, the outlet interface 126 of altitude valve 120 is connected with leakage port 127, and air bag 110 sequentially passes through outlet interface 126 and leakage port
127 are deflated, and accordingly underframe 200, underframe 200 have been lowerd after persistently reducing the height of air bag 110, the height reduction of air bag 110
Lower, correspondingly reduce the position of the tie point 124 of altitude valve 120, the position shown in Fig. 3 A is reached, when tie point 124 is reached
With the same level of tie point 123 height, elevating control arm 122 closes altitude valve 120, and outlet interface 126 is closed, and stops to air bag
110 deflate and keep the height of air bag 110.Conventional distance is kept between bus's body frame 200 and suspension 300, motor bus enters
Normally travel state.
The third situation, control air bag 110 is reduced, and is marked time applied to motor bus reduction of pulling in, is facilitated on-board and off-board.
Assuming that air bag 110 is run in the case of above-mentioned second, the second air pressure that driver is closed on the second air flue 160 is opened
161 are closed, the compressed air of the intracavitary of the second expansion link 132 in pneumatic rod 130 passes through the second gas along the second air flue 160
1161 pressure relief opening 163 of compressing switch is deflated, and the second expansion link 132 is shunk upwards.
The first baroswitch 151 that driver's (maintenance) is closed on the first air flue 150, first in pneumatic rod 130
The compressed air of the intracavitary of expansion link 131 is deflated along the first air flue 50 by the pressure relief opening 153 of the first baroswitch 151, makes the
One expansion link 131 shrinks, and pneumatic rod 130 reaches Fig. 2 B position.The connection of first expansion link 131 and elevating control arm 122
Point 123 reaches the position C in Fig. 5, now tie point of the tie point 123 less than elevating control arm 122 and height valve body 121
124, the outlet interface 126 of altitude valve 120 is connected with leakage port 127, and air bag 110 sequentially passes through outlet interface 126 and leakage port
127 are deflated, and accordingly underframe 200, underframe 200 have been lowerd after persistently reducing the height of air bag 110, the height reduction of air bag 110
Lower, correspondingly reduce the position of the tie point 124 of altitude valve 120, the position shown in Fig. 2A is reached, when tie point 124 is reached
With the same level of tie point 123 height, elevating control arm 122 closes altitude valve 120, and outlet interface 126 is closed, and stops to air bag
110 deflate and keep the height of air bag 110.Bus's body frame 200 and the distance between suspension 300 are shorter, and motor bus reduction is stepped on
Step, facilitates on-board and off-board.
It is preferred that the first strut 133 and the second strut 134 can bear 0~8bar operating air pressures, 3 are reached when input~
First and second expansion link 131,132 can stretch out in time during 8bar operating air pressures, first and second expansion link when discharging compressed gas
131st, 132 it can retract in time.
It is preferred that being in 162 pair of first and second air flue of the first baroceptor 152 and the second baroceptor 150,160
No to have compressed air pressure to provide transducing signal, its operating pressure is 2~8bar, interface bore and first and second air flue 150,160
Pipeline adaptation, rated voltage DC 24V.
It is preferred that the pipeline of first and second air flue 150,160 and the 3rd air flue 170 uses pressure-resistant nylon tube, work compression resistance
10bar。
A kind of air bag apparatus for controlling of lifting 100 of the utility model description is applied to motor bus, and overall structure is simple, passes through
Pneumatic rod 130 is connected to control the running status of altitude valve 120 with elevating control arm 122 so that altitude valve 120 can
Switch between three kinds of states of opening, close and deflate, and then adjust the height of air bag 110 so that air bag 110 can it is higher,
Switch in conventional and relatively low three kinds of running statuses, so that the distance between underframe 200 and suspension 300 of motor bus are adjusted, it is convenient
The operation of motor bus.
Those skilled in the art can be obvious, can carry out various modifications and change to above-mentioned example embodiment of the present utility model
Type is without departing from spirit and scope of the present utility model.Accordingly, it is intended to make the utility model covering fall in appended claims
And its in the range of equivalent arrangements to modifications and variations of the present utility model.