CN104802782A - Emergency brake package uphill-downhill front-rear brake automatically adjusting and controlling device - Google Patents
Emergency brake package uphill-downhill front-rear brake automatically adjusting and controlling device Download PDFInfo
- Publication number
- CN104802782A CN104802782A CN201510228843.1A CN201510228843A CN104802782A CN 104802782 A CN104802782 A CN 104802782A CN 201510228843 A CN201510228843 A CN 201510228843A CN 104802782 A CN104802782 A CN 104802782A
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- CN
- China
- Prior art keywords
- bracing wire
- bag
- weight
- brake
- rear braking
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/26—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force characterised by producing differential braking between front and rear wheels
- B60T8/28—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force characterised by producing differential braking between front and rear wheels responsive to deceleration
- B60T8/287—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force characterised by producing differential braking between front and rear wheels responsive to deceleration using pendulums
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T7/00—Brake-action initiating means
- B60T7/02—Brake-action initiating means for personal initiation
- B60T7/08—Brake-action initiating means for personal initiation hand actuated
- B60T7/10—Disposition of hand control
- B60T7/101—Disposition of hand control by means of a pull rod
Abstract
The invention provides an emergency brake package uphill-downhill front-rear brake automatically adjusting and controlling device, which comprises a hammer, a hammer oscillating bar and a hammer oscillating and rotating shaft, wherein the hammer oscillating and rotating shaft is fixed at the top end of the hammer oscillating bar; a hammer bottom end supporting rod is arranged at the bottom end of the hammer, and a hammer back stay wire and a hammer front stay wire are tied on the hammer bottom end supporting rod; the hammer back stay wire is fixedly connected with a rear brake package stay wire and chassis surface parallel section midpoint of a rear brake package stay wire and chassis surface parallel section of a rear brake package stay wire by virtue of a hammer rear stay wire adjusting and controlling guide pulley and other stay wire guide pulleys; the hammer front stay wire is fixedly connected with a front brake package stay wire and chassis surface parallel section midpoint of a front brake package stay wire and chassis surface parallel section of a front brake package stay wire by virtue of a hammer front stay wire adjusting and controlling guide pulley and other another stay wire guide pulleys. The emergency brake package uphill-downhill front-rear brake automatically adjusting and controlling device is characterized in that when an automobile drives downhill, the hammer bottom end supporting rod draws the hammer rear stay wire on the left side of the hammer oscillating bar rightwards for a certain distance D, so the rear brake package stay wire and chassis surface parallel section midpoint of the rear brake package stay wire and chassis surface parallel section is lifted up for a distance H.
Description
Technical field
The present invention relates to emergency brake and wrap brake gear before and after descending auto-control, be applicable to all self-propelled vehiclees, belong to braking automobile technology and security technology area.
Background technology
We often hear many automobiles particularly large-scale autotruck, due to brake failure generation grave accident, because the hydraulic coupling that the present braking automobile of one side needs driving engine to run mostly or atmospheric pressure brake, the brake system long-time running of automobile uses on the other hand, likely to break down or malfunctioning, therefore, ensure that the most important brake of safety does not have stand-by system particularly not have emergency braking system to be irrational; And the parking brake of nearly all automobile not too works for real brake, particularly automobile is when running at high speed or in descending brake failure or under the unexpected off position of driving engine, and parking brake does not have any effect;
The achievement of domestic and international research, production and invention automobile brake system, report and system and device are quite a lot, and it is quite a few for the emergency braking system of automobile, but these system and device great majority all more complicated, and mostly all will by means of hydraulic pressure or the pressure system needing engine operation during brake, also do not find now a kind of can not by means of hydraulic pressure or atmospheric pressure, insurance, pure machinery, without the need to the Manual braking system of engine power; The patent of invention of Wei Baiqing " 201510144580.6 return loosen from opening and closing emergency brake bag of stopping " achieves not by the Manual braking of engine power, pure machinery, and manually can return and loosen brake block after the brake of Manual braking system, the present invention utilizes foregoing invention to design a kind of regulation device, automobile can be braked before and after auto-control when going up a slope or descending state utilizes emergency brake to pack tightly sudden stop, thus the rollover situation that occurs during emergency brake can be avoided.
Summary of the invention
The object of this invention is to provide a kind of braking time of automobile uphill/downhill auto-control front and back wheel emergency brake bag that can utilize is that brake gear before and after descending auto-control is wrapped in emergency brake sequentially.
Brake gear before and after descending auto-control is wrapped in emergency brake, comprise a weight and a weight fork, and the weight swing shaft that weight fork top is fixing, the bottom of weight is provided with a weight bottom pole, weight bottom pole fastens two bracing wires, be respectively bracing wire before weight back guy and weight, weight back guy is fixedly linked by the rear braking bag bracing wire of the bracing wire of rear braking bag and face, chassis parallel-segment in weight back guy regulation and control track adjusting wheel and other bracing wire track adjusting wheels and the bracing wire of rear braking bag and face, chassis parallel-segment mid point, before weight, bracing wire is fixedly linked by the Front brake bag bracing wire of the bracing wire of Front brake bag and face, chassis parallel-segment in bracing wire regulation and control track adjusting wheel before weight and other bracing wire track adjusting wheels and the bracing wire of Front brake bag and face, chassis parallel-segment mid point, it is characterized in that:
1, the total bracing wire of brake bag is divided into the bracing wire of rear braking bag and Front brake bag bracing wire two branch line by bracing wire track adjusting wheel, the bracing wire of rear braking bag is fixedly linked by drawing bull stick and pincerlike ring set bracing wire after multiple bracing wire track adjusting wheel with the rear braking bag of rear braking bag, the one section of rear braking bag bracing wire between two bracing wire track adjusting wheels is had to be parallel to chassis plane in the position near rear braking bag, be called the bracing wire of rear braking bag and face, chassis parallel-segment, the fixed connection point of weight back guy and weight bottom pole is the initiating terminal of weight back guy, the initiating terminal of weight back guy is first through weight back guy regulation and control track adjusting wheel, then through multiple bracing wire track adjusting wheel, the bracing wire of rear braking bag and face, the chassis parallel-segment mid point of last and the bracing wire of rear braking bag and face, chassis parallel-segment are fixedly linked, the bracing wire of Front brake bag is fixedly linked by drawing bull stick and pincerlike ring set bracing wire after multiple bracing wire track adjusting wheel with the Front brake bag of Front brake bag, the one section of Front brake bag bracing wire between two bracing wire track adjusting wheels is had to be parallel to chassis plane in the position near Front brake bag, be called the bracing wire of Front brake bag and face, chassis parallel-segment, before weight, the fixed connection point of bracing wire and weight bottom pole is the initiating terminal of bracing wire before weight, before weight, the initiating terminal of bracing wire is first through bracing wire regulation and control track adjusting wheel before weight, then through multiple bracing wire track adjusting wheel, the bracing wire of Front brake bag and face, the chassis parallel-segment mid point of last and the bracing wire of Front brake bag and face, chassis parallel-segment are fixedly linked.
2, when automobile up slope travels, during automobile up slope, car chassis becomes a α angle with horizontal surface, because weight fork remains perpendicular to horizontal surface in the process of going up a slope, so weight fork now becomes a α angle backward with the perpendicular line of car chassis, now, because the effect of bracing wire regulation and control track adjusting wheel before weight, make the weight bottom pole of weight bottom that bracing wire before the weight on the right side of weight fork is moved a segment distance D to Zola, but weight bottom pole does not play tensioning function to the weight back guy on the left of weight fork, before being moved to the left the weight of distance D, bracing wire makes the Front brake bag bracing wire of the bracing wire of Front brake bag and face, chassis parallel-segment and face, chassis parallel-segment mid point carry a segment distance H to pull-up by bracing wire regulation and control track adjusting wheel and other bracing wire track adjusting wheels before weight, this draws carries distance H and makes the Front brake bag of Front brake bag draw bull stick to clickwise angle Ф, and the pincerlike ring set bracing wire of Front brake bag is moved right distance L, but Front brake bag draws bull stick to be also not enough to make Front brake to contract for fixed output quotas the degree of raw emergency brake to the pincerlike ring set bracing wire of clickwise angle Ф and the Front brake bag distance L that moves right, angle [alpha] is larger, D is larger, H is also larger, Ф and L is also larger, design is when the gradient of automobile up slope reaches 45o angle, Front brake bag draws bull stick to the pincerlike ring set bracing wire of clickwise angle Ф and the Front brake bag distance L that moves right, Front brake to be contracted for fixed output quotas raw emergency brake, at automobile up slope but under the gradient is less than 45o horn shape state, if the automobile now gone up a slope needs emergency brake to pack tightly sudden stop, then automobile driver pulls parking brake to second gear, making brake wrap total bracing wire drives rear braking bag bracing wire and the bracing wire of Front brake bag to move, because the bracing wire of Front brake bag and face, the chassis parallel-segment mid point of the automobile in travelling carry a segment distance H to pull-up, so the total bracing wire of brake bag drives in rear braking bag bracing wire and Front brake bag bracing wire moving process, first the bracing wire of Front brake bag is made to drive the Front brake bag of Front brake bag to draw bull stick and pincerlike ring set bracing wire to make Front brake bag more be introduced into braking state than rear braking bag, can not occur because trailing wheel brakes in advance when so just making the automobile emergency brake bag of up-hill journey brake overturning.
3, when automobile downhill travels, during automobile downhill, car chassis becomes a β angle with horizontal surface, because weight fork remains perpendicular to horizontal surface in the process of descending, so weight fork now becomes a β angle backward with the perpendicular line of car chassis, now, because the effect of weight back guy regulation and control track adjusting wheel, weight back guy on the left of weight fork is drawn to the right by the weight bottom pole of weight bottom and moves a segment distance D, but weight bottom pole does not play tensioning function to bracing wire before the weight on the right side of weight fork, move right distance D weight back guy by weight back guy regulation and control track adjusting wheel and other bracing wire track adjusting wheels make the rear braking bag bracing wire of the bracing wire of rear braking bag and face, chassis parallel-segment and face, chassis parallel-segment mid point carry a segment distance H to pull-up, this draws carries distance H and makes the rear braking bag of rear braking bag draw bull stick to clickwise angle Ф, and pincerlike ring set bracing wire is moved right distance L, but rear braking bag draws bull stick to be also not enough to make rear braking to contract for fixed output quotas the degree of raw emergency brake to the pincerlike ring set bracing wire of clickwise angle Ф and the rear braking bag distance L that moves right, angle beta is larger, D is larger, H is also larger, Ф and L is also larger, design is when the gradient of automobile downhill reaches 45o angle, rear braking bag draws bull stick to the pincerlike ring set bracing wire of clickwise angle Ф and the rear braking bag distance L that moves right, rear braking to be contracted for fixed output quotas raw emergency brake, at automobile downhill but under the gradient is less than 45o horn shape state, if now the automobile of descending needs emergency brake to pack tightly sudden stop, then automobile driver pulls parking brake to second gear, making brake wrap total bracing wire drives rear braking bag bracing wire and the bracing wire of Front brake bag to move, because the bracing wire of rear braking bag and face, the chassis parallel-segment mid point of the automobile in travelling carry a segment distance H to pull-up, so the total bracing wire of brake bag drives in rear braking bag bracing wire and Front brake bag bracing wire moving process, first the bracing wire of rear braking bag is made to drive the rear braking bag of rear braking bag to draw the pincerlike ring set bracing wire of bull stick and rear braking bag to make rear braking bag more be introduced into braking state than Front brake bag, can not occur because front-wheel brakes in advance when so just making the automobile emergency brake bag of descent run brake overturning.
The present invention compared with prior art has the following advantages:
1, the present invention utilizes the Action of Gravity Field auto-control of weight, and does not need exogenetic process, so be adapted at anyly in emergency circumstances acting on.
2, the present invention makes simply, and regulation and control emergency brake is effective, makes the emergency brake bag of front-wheel be introduced into emergency brake state, make the emergency brake bag of trailing wheel be introduced into emergency brake state during descending during upward slope, to ensure that automobile can not overturn when emergency brake.
3, the present invention as auxiliary brake, also can replace existing hand brake device.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention;
Fig. 2 is upward slope view embodiment illustrated in fig. 1;
Fig. 3 is descending view embodiment illustrated in fig. 1;
Fig. 4 is the structural representation of middle emergency brake bag embodiment illustrated in fig. 1;
Fig. 5 is that status architecture schematic diagram is closed in middle clamp plate embodiment illustrated in fig. 4 conjunction;
Fig. 6 is middle AA generalized section embodiment illustrated in fig. 4;
Fig. 7 is schematic top plan view embodiment illustrated in fig. 4;
Fig. 8 is upper lower plate schematic side view embodiment illustrated in fig. 4;
Fig. 9 is that schematic diagram is looked on a upper lower plate left side embodiment illustrated in fig. 4;
Figure 10 is middle P enlarged diagram embodiment illustrated in fig. 4;
Figure 11 be embodiment illustrated in fig. 4 in split shape brake facing schematic top plan view;
Figure 12 is middle Q enlarged diagram embodiment illustrated in fig. 4;
Figure 13 is middle R enlarged diagram embodiment illustrated in fig. 4;
Figure 14 is middle S enlarged diagram embodiment illustrated in fig. 4.
In Fig. 1-14: A1, rear braking bag draws bull stick A2, rear braking bag A3, the bracing wire of rear braking bag and face, chassis parallel-segment A4, weight back guy A5, weight back guy regulation and control track adjusting wheel A6, rear braking bag bracing wire A7, weight swing shaft A8, weight A9, weight bottom pole A10, weight fork A11, Front brake bag bracing wire A12, bracing wire regulation and control track adjusting wheel A13 before weight, the total bracing wire A14 of brake bag, bracing wire A15 before weight, the bracing wire of Front brake bag and face, chassis parallel-segment A16, Front brake bag A17, Front brake bag draws bull stick A18, bracing wire track adjusting wheel A19, the bracing wire of rear braking bag and face, chassis parallel-segment mid point A20, the bracing wire of Front brake bag and face, chassis parallel-segment mid point.
1, brake outsourcing 2, left pinion 3, lower plate circular arc tooth plate 4, draw bull stick 5, long main gear 6, train wheel bridge circular arc tooth plate 7, right pinion 8, taper hole 9, cone fine stern axle 10, lower plate transverse slat 11, train wheel bridge transverse slat 12, under split shape brake facing 13, automobile shaft lever 14, on split shape brake facing 15, forearm 16 under pincerlike ring set, forearm 17 on pincerlike ring set, torque arm 18 before under pincerlike ring set, curved boom 19 before lower plate, pincerlike ring set is gone forward torque arm 20, upper lower plate S. A. 21, front torque arm joins 22, pincerlike ring set bracing wire 23, total bracing wire 24, curved boom 25 before train wheel bridge, draw bull stick bracing wire 26, bracing wire track adjusting wheel 27, cone fine stern axle spring fixed column 28, cone fine stern axle spring 29, main gear pull back spring 30, the upper and lower forearm of pincerlike ring set joins 31, curved boom rotating shaft cover 32 before lower plate, curved boom rotating shaft cover 33 before train wheel bridge, lower plate circular arc tooth plate left side tooth 34, lower plate circular arc tooth plate right side tooth 35, train wheel bridge circular arc tooth plate left side tooth 36, train wheel bridge circular arc tooth plate right side tooth 37, both arms 38 after pincerlike ring set, trapezoidal hole 39, automobile shaft lever brake wheel 40, activity-oriented wheel 41, activity-oriented wheel shaft 42, activity-oriented wheel pivoted arm 43, activity-oriented wheel curls up axle 44, curl up axle outer around spring.
Detailed description of the invention
In the embodiment shown in Fig. 1-14: brake gear before and after descending auto-control is wrapped in emergency brake, comprise an a weight A8 and weight fork A10, and the weight swing shaft A7 that weight fork A10 top is fixing, the bottom of weight A8 is provided with a weight bottom pole A9, weight bottom pole A9 fastens two bracing wires, be respectively bracing wire A14 before weight back guy A4 and weight, weight back guy A4 is fixedly linked by the rear braking bag bracing wire of the bracing wire of rear braking bag and face, chassis parallel-segment A3 in weight back guy regulation and control track adjusting wheel A5 and other bracing wires track adjusting wheel A18 and rear braking bag bracing wire A6 and face, chassis parallel-segment mid point A19, before weight, bracing wire A14 is fixedly linked by the Front brake bag bracing wire of the bracing wire of Front brake bag and face, chassis parallel-segment A15 in bracing wire regulation and control track adjusting wheel A12 and other bracing wires track adjusting wheel A18 and Front brake bag bracing wire A11 before weight and face, chassis parallel-segment mid point A20, it is characterized in that: the total bracing wire A13 of brake bag is divided into rear braking bag bracing wire A6 and Front brake bag bracing wire A11 two branch line by bracing wire track adjusting wheel A18, rear braking bag bracing wire A6 is fixedly linked by drawing bull stick A1 and pincerlike ring set bracing wire 22 after multiple bracing wire track adjusting wheel A18 with the rear braking bag of rear braking bag A2, one section of rear braking bag bracing wire A6 between two bracing wire track adjusting wheel A18 is had to be parallel to chassis plane in the position near rear braking bag A2, be called the bracing wire of rear braking bag and face, chassis parallel-segment A3, the fixed connection point of weight back guy A4 and weight bottom pole A9 is the initiating terminal of weight back guy A4, the initiating terminal of weight back guy A4 is first through weight back guy regulation and control track adjusting wheel A5, then through multiple bracing wire track adjusting wheel A18, the bracing wire of rear braking bag and face, the chassis parallel-segment mid point A19 of last and the bracing wire of rear braking bag and face, chassis parallel-segment A3 are fixedly linked, Front brake bag bracing wire A11 is fixedly linked by drawing bull stick A17 and pincerlike ring set bracing wire 22 after multiple bracing wire track adjusting wheel A18 with the Front brake bag of Front brake bag A16, one section of Front brake bag bracing wire A11 between two bracing wire track adjusting wheel A18 is had to be parallel to chassis plane in the position near Front brake bag A16, be called the bracing wire of Front brake bag and face, chassis parallel-segment A15, before weight, the fixed connection point of bracing wire A14 and weight bottom pole A9 is the initiating terminal of bracing wire A14 before weight, before weight, the initiating terminal of bracing wire A14 is first through bracing wire regulation and control track adjusting wheel A12 before weight, then through multiple bracing wire track adjusting wheel A18, the bracing wire of Front brake bag and face, the chassis parallel-segment mid point A20 of last and the bracing wire of Front brake bag and face, chassis parallel-segment A15 are fixedly linked.
When automobile up slope travels, during automobile up slope, car chassis becomes a α angle with horizontal surface, because weight fork A10 remains perpendicular to horizontal surface in the process of going up a slope, so weight fork A10 now becomes a α angle backward with the perpendicular line of car chassis, now, bracing wire A14 before weight on the right side of weight fork A10 is moved a segment distance D to Zola by the weight bottom pole A9 of weight A8 bottom, but weight bottom pole A9 does not play tensioning function to the weight back guy A4 on the left of weight fork A10, before being moved to the left the weight of distance D, bracing wire A14 makes the Front brake bag bracing wire of the bracing wire of Front brake bag and face, chassis parallel-segment A15 and face, chassis parallel-segment mid point A20 carry a segment distance H to pull-up by bracing wire regulation and control track adjusting wheel A12 and other bracing wires track adjusting wheel A18 before weight, this draws carries distance H and makes the Front brake bag of Front brake bag A16 draw bull stick A17 to clickwise angle Ф, and the pincerlike ring set bracing wire 22 of Front brake bag A16 is moved right distance L, but Front brake bag draws bull stick A17 to be also not enough to make Front brake bag A16 produce the degree of emergency brake to the pincerlike ring set bracing wire 22 of clickwise angle Ф and the Front brake bag A16 distance L that moves right, design is when the gradient of automobile up slope reaches 45o angle, Front brake bag draws bull stick A17 to make Front brake bag A16 produce emergency brake to the pincerlike ring set bracing wire 22 of clickwise angle Ф and the Front brake bag A16 distance L that moves right, at automobile up slope but under the gradient is less than 45o horn shape state, if the automobile now gone up a slope needs emergency brake to pack tightly sudden stop, then automobile driver pulls parking brake to second gear, making brake wrap total bracing wire A13 drives rear braking bag bracing wire A6 and Front brake bag bracing wire A11 to move, because the bracing wire of Front brake bag and face, the chassis parallel-segment mid point A20 of the automobile in travelling carry a segment distance H to pull-up, so the total bracing wire A13 of brake bag drives in rear braking bag bracing wire A6 and Front brake bag bracing wire A11 moving process, first Front brake bag bracing wire A11 is made to drive the Front brake bag of Front brake bag A16 to draw bull stick A17 and pincerlike ring set bracing wire 22 to make Front brake bag A16 more be introduced into braking state than rear braking bag A2, can not occur because trailing wheel brakes in advance when so just making the automobile emergency brake bag of up-hill journey brake overturning.
When automobile downhill travels, during automobile downhill, car chassis becomes a β angle with horizontal surface, because weight fork A10 remains perpendicular to horizontal surface in the process of descending, so weight fork A10 now becomes a β angle backward with the perpendicular line of car chassis, now, weight back guy A4 on the left of weight fork A10 draws to the right and moves a segment distance D by the weight bottom pole A9 of weight A8 bottom, but weight bottom pole A9 does not play tensioning function to bracing wire A14 before the weight on the right side of weight fork A10, move right distance D weight back guy A4 by weight back guy regulation and control track adjusting wheel A5 and other bracing wires track adjusting wheel A18 make the rear braking bag bracing wire of the bracing wire of rear braking bag and face, chassis parallel-segment A3 and face, chassis parallel-segment mid point A19 carry a segment distance H to pull-up, this draws carries distance H and makes the rear braking bag of rear braking bag A2 draw bull stick A1 to clickwise angle Ф, and pincerlike ring set bracing wire 22 is moved right distance L, but rear braking bag draws bull stick A1 to be also not enough to make rear braking bag A2 produce the degree of emergency brake to the pincerlike ring set bracing wire 22 of clickwise angle Ф and the rear braking bag A2 distance L that moves right, design is when the gradient of automobile downhill reaches 45o angle, rear braking bag draws bull stick A1 to make rear braking bag A2 produce emergency brake to the pincerlike ring set bracing wire 22 of clickwise angle Ф and the rear braking bag A2 distance L that moves right, at automobile downhill but under the gradient is less than 45o horn shape state, if now the automobile of descending needs emergency brake to pack tightly sudden stop, then automobile driver pulls parking brake to second gear, making brake wrap total bracing wire A13 drives rear braking bag bracing wire A6 and Front brake bag bracing wire A11 to move, because the bracing wire of rear braking bag and face, the chassis parallel-segment mid point A19 of the automobile in travelling carry a segment distance H to pull-up, so the total bracing wire A13 of brake bag drives in rear braking bag bracing wire A6 and Front brake bag bracing wire A11 moving process, first rear braking bag bracing wire A6 is made to drive the rear braking bag of rear braking bag A2 to draw the pincerlike ring set bracing wire 22 of bull stick A1 and rear braking bag A2 to make rear braking bag A2 more be introduced into braking state than Front brake bag A16, can not occur because front-wheel brakes in advance when so just making the automobile emergency brake bag of descent run brake overturning.
Return from opening and closing and loosen emergency brake bag of stopping: comprise the pincerlike ring set be arranged in brake bag 1, have outside pincerlike ring set the first half outside a train wheel bridge, pincerlike ring set the latter half and have a lower plate, it is characterized in that: pincerlike ring set is a pincerlike ring-type, pincerlike ring set is from left to right successively by cone fine stern axle 9, both arms 37 after pincerlike ring set, on split shape brake facing 14, under split shape brake facing 12, forearm 16 on pincerlike ring set, forearm 15 under pincerlike ring set, pincerlike ring set is gone forward torque arm 19, torque arm 17 before under pincerlike ring set, front torque arm is joined and 21 to be connected to form, pincerlike ring set is wrapped on the automobile shaft lever 13 of brake bag 1 inner section, automobile shaft lever 13 outer shroud bag automobile shaft lever brake wheel 39 of this section, the cone fine stern axle 9 of pincerlike ring set is set in the taper hole 8 on the support that is fixedly linked with the bag 1 that brakes, when the cone fine stern axle 9 of pincerlike ring set moves right S distance, 10mm≤S, the cone fine stern axle 9 of taper can swing up and down in taper hole 8, the left end tip of cone fine stern axle 9 is provided with a cone fine stern axle spring 28, the left end of cone fine stern axle spring 28 is fixedly mounted on the support be fixedly linked with the bag 1 that brakes and bores on fine stern axle spring fixed column 27, the effect of cone fine stern axle spring 28 is after pincerlike ring set moves right brake, releasing of brake line and untie lower plate clamping time, pincerlike ring set is withdrawn into cone fine stern axle 9 left and is posted in position in taper hole 8 completely, before under the pincerlike ring set of pincerlike ring set right-hand member, the torque arm 19 of going forward of torque arm 17 and pincerlike ring set is set in the trapezoidal hole 38 of brake bag 1 right side, before under the hole right output port of trapezoidal hole 38 and osculum internal diameter size and pincerlike ring set, torque arm 17 and pincerlike ring set torque arm 19 external diameter size of going forward matches, the hole left port of trapezoidal hole 38 and large mouth internal diameter are worth up and down and are worth large 30% ~ 50% up and down than torque arm 17 before under pincerlike ring set and pincerlike ring set torque arm 19 external diameter of going forward, pincerlike ring set is moved right and by after automobile shaft lever 13 rotary squeezing, pincerlike ring set is split shape brake facing 14 and under split shape brake facing 12 and can swing up and down around the hole right output port of trapezoidal hole 38, the front torque arm of pincerlike ring set right-hand member is joined and 21 is connected a pincerlike ring set bracing wire 22.
The train wheel bridge of one piece of U-shaped is installed outside the first half of pincerlike ring set, the lower plate of one piece of U-shaped is installed outside the latter half of pincerlike ring set, train wheel bridge left end is lower curved circular arc train wheel bridge circular arc tooth plate 6, the circular arc center of circle of train wheel bridge circular arc tooth plate 6 is the axle center of upper lower plate S. A. 20, namely the circular arc of train wheel bridge circular arc tooth plate 6 is axle center of above lower plate S. A. 20 is the center of circle, the axle center of above lower plate S. A. 20 is the circular arc that radius is drawn to train wheel bridge circular arc tooth plate 6 at a point, lower plate left end is upper curved circular arc lower plate circular arc tooth plate 3, the circular arc center of circle of lower plate circular arc tooth plate 3 is the axle center of upper lower plate S. A. 20, namely the circular arc of lower plate circular arc tooth plate 3 is axle center of above lower plate S. A. 20 is the center of circle, the axle center of above lower plate S. A. 20 is the circular arc that radius is drawn to lower plate circular arc tooth plate 3 at a point, the arc radius of lower plate circular arc tooth plate 3 is larger than the arc radius of train wheel bridge circular arc tooth plate 6, the left and right sides of train wheel bridge circular arc tooth plate 6 all have the gear teeth, the train wheel bridge circular arc tooth plate 6 left surface gear teeth are train wheel bridge circular arc tooth plate left side tooth 35, the train wheel bridge circular arc tooth plate 6 right flank gear teeth are train wheel bridge circular arc tooth plate right side tooth 36, the left and right sides of lower plate circular arc tooth plate 3 all have the gear teeth, the lower plate circular arc tooth plate 3 left surface gear teeth are lower plate circular arc tooth plate left side tooth 33, the lower plate circular arc tooth plate 3 right flank gear teeth are lower plate circular arc tooth plate right side tooth 34, a long main gear 5 is engage between the train wheel bridge circular arc tooth plate left side tooth 35 of train wheel bridge circular arc tooth plate 6 and the lower plate circular arc tooth plate right side tooth 34 of lower plate circular arc tooth plate 3, the train wheel bridge circular arc tooth plate right side tooth 36 of train wheel bridge circular arc tooth plate 6 engages a right pinion 7, the effect of right pinion 7 is the motion tracks limiting train wheel bridge circular arc tooth plate 6, the lower plate circular arc tooth plate left side tooth 33 of lower plate circular arc tooth plate 3 engages a left pinion 2, the effect of left pinion 2 is the motion tracks limiting lower plate circular arc tooth plate 3, before the train wheel bridge of train wheel bridge circular arc tooth plate 6 right-hand member of U-shaped, curved boom 24 termination has a rotary shaft hole to be curved boom rotating shaft cover 32 before train wheel bridge, before train wheel bridge, curved boom rotating shaft cover 32 is sleeved on lower plate S. A. 20, train wheel bridge can do positive inhour around upper lower plate S. A. 20 and rotate, make train wheel bridge transverse slat 11 the horizontal plate medial surface of brake bag 1 upper end and on to split between shape brake facing 14 movable, thus regulate the distance between train wheel bridge transverse slat 11 and automobile shaft lever brake wheel 39, before the lower plate of lower plate circular arc tooth plate 3 right-hand member of U-shaped, curved boom 18 termination has a rotary shaft hole to be curved boom rotating shaft cover 31 before lower plate, before lower plate, curved boom rotating shaft cover 31 is sleeved on lower plate S. A. 20, lower plate can do positive inhour around upper lower plate S. A. 20 and rotate, make lower plate transverse slat 10 the horizontal plate medial surface of brake bag 1 lower end and under to split between shape brake facing 12 movable, thus regulate the distance between lower plate transverse slat 10 and automobile shaft lever brake wheel 39, before before two lower plates, curved boom rotating shaft cover 31 is arranged on two train wheel bridges, the inner side of 32 is overlapped in curved boom rotating shaft, object is that before train wheel bridge, curved boom rotating shaft is overlapped 32 stressed chances to overlap 31 stressed chances than curved boom rotating shaft before lower plate much bigger, because brake when train wheel bridge advances for automobile, and lower plate brakes for reversing automobile or when falling back.
Long main gear 5 central authorities upside is provided with one and draws bull stick 4, the upper end of bull stick 4 is drawn to be connected with drawing bull stick bracing wire 25, bull stick bracing wire 25 is drawn to lead through multiple bracing wire track adjusting wheel 26, last and pincerlike ring set bracing wire 22 is merged into total bracing wire 23, total bracing wire 23 is connected with the parking brake in operator's compartment, after parking brake pull-up drives total bracing wire 23 and drive draws the upper end of bull stick 4 to move a certain distance from left to right, draw bull stick 4 to move right and make long main gear 5 overcome the spring-force driven dual of main gear pull back spring 29 to right rotation angle Ф, 15o≤Ф≤45o, long main gear 5 rotarily drives lower plate circular arc tooth plate 3 to the right and moves up, the upper face of lower plate transverse slat 10 is made to become horizontality, even if the axis parallel of the upper face of lower plate transverse slat 10 and brake bag 1, long main gear 5 rotarily drives train wheel bridge circular arc tooth plate 6 to the right and moves down, the lower face of train wheel bridge transverse slat 11 is made to become horizontality, even if the axis parallel of the lower face of train wheel bridge transverse slat 11 and brake bag 1, parking brake pull-up drives total bracing wire 23 and drives the upper end of drawing bull stick 4 from left to right while movement, also cone fine stern axle spring 28 spring-force driven dual driving pincerlike ring set bracing wire 22 to overcome pincerlike ring set left end moves right, and split under making pincerlike ring set shape brake facing 12 and on split shape brake facing 14 and move right, due under split shape brake facing 12 and above split shape brake facing 14 for thick one end, one end thin split shape, and under split shape brake facing 12 and on split shape brake facing 14 to be the thick right-hand member of left end thin, its by thick to thin be linear change, on split shape brake facing 14 medial surface with brake bag 1 on the upside of horizontal interior walls become a α angle, 15 o≤α≤45 o, when brake bag is in non-braking state, on split shape brake facing 14 upper side become a low-angle β with the horizontal interior walls of brake bag 1,1o≤β≤5 o, under split shape brake facing 12 medial surface with brake bag 1 on the downside of horizontal interior walls become a α angle, 15 o≤α≤45 o, brake bag is when being in non-braking state, under split shape brake facing 12 downside become a low-angle β, 1o≤β≤5 o with the horizontal interior walls of the bag 1 that brakes, individual activity-oriented is had to take turns 40 before drawing bull stick bracing wire 25 to be connected to total bracing wire 23, an activity-oriented wheel shaft 41 is had in activity-oriented wheel 40, activity-oriented wheel shaft 41 top connects an activity-oriented wheel pivoted arm 42, the upper end of activity-oriented wheel pivoted arm 42 is sleeved on activity-oriented wheel and curls up on axle 43, activity-oriented wheel curls up outside axle 43 has one to curl up outside axle around spring 44, activity-oriented wheel 40 can rotate around activity-oriented wheel shaft 41, activity-oriented wheel 40 can also curl up axle 43 around activity-oriented wheel simultaneously and rotate together with activity-oriented wheel pivoted arm 42, activity-oriented wheel curls up the spring-return power of curling up around spring 44 outside axle outside axle 43, be greater than and draw bull stick bracing wire 25 to pull bull stick 4 and drive the pulling force that long main gear 5 rotates, and pull bull stick bracing wire 25 in total bracing wire 23 and drive and pull bull stick 4 to rotate and long main gear 5 rotates to right rotation angle Ф, when making the lower face of train wheel bridge transverse slat and the upper face of lower plate transverse slat all become horizontality, total bracing wire 23 just pulls pincerlike ring set bracing wire 22 to drive pincerlike ring set to move right, and make pincerlike ring set on split shape brake facing 14 and under split shape brake facing 12 and move right and enter braking state, so, after total bracing wire 23 pulls bull stick bracing wire 25 to make the lower face of train wheel bridge transverse slat all become horizontality with the upper face of lower plate transverse slat, total bracing wire 23 continues to pull bull stick bracing wire 25 to move to right but cannot drive draws bull stick 4 and long main gear 5 to rotate, and now total bracing wire 23 continues to pull bull stick bracing wire 25 and drive activity-oriented take turns 40 and activity-oriented wheel pivoted arm 42 curl up axle 43 around activity-oriented wheel and overcome and curl up that axle is outer to be rotated around spring 44, and do not affect total bracing wire 23 and pull pincerlike ring set bracing wire 22 to drive pincerlike ring set to move right, if automobile is in forward travel state when parking brake pull-up drives total bracing wire 23, then automobile shaft lever 13 outsourcing automobile shaft lever brake wheel 39 rotate to be to right rotation, dextrorotation is split shape brake facing 14 and is got into space between train wheel bridge transverse slat 11 and automobile shaft lever brake wheel 39 on driving, form extruding locking brake, if automobile is in fallback state when parking brake pull-up drives total bracing wire 23, then automobile shaft lever 13 outsourcing automobile shaft lever brake wheel 39 rotate to be to anticlockwise, split shape brake facing 12 under left-handed drive and get into space between lower plate transverse slat 10 and automobile shaft lever brake wheel 39, form extruding locking brake.
When putting down parking brake and unclamping total bracing wire 23, draw bull stick bracing wire 25 and pincerlike ring set bracing wire to be unclamped simultaneously, the application force of main gear pull back spring 29 is greater than owing to curling up the outer acting force of the spring around spring 44 of axle, activity-oriented is made to take turns first return, then, at the application force of main gear pull back spring 29, make long main gear 5 anglec of rotation Ф left, lower plate circular arc tooth plate 3 is driven to move down, move up with train wheel bridge circular arc tooth plate 6, and drive lower plate transverse slat 10 to move down around upper lower plate S. A. 20 rotation, move down around upper lower plate S. A. 20 rotation with train wheel bridge transverse slat 11, thus make down to split shape brake facing 12 and above split shape brake facing 14 to obtain certain loosening space, even if the distance between lower plate transverse slat 10 and automobile shaft lever brake wheel 39 increases, with the distance between train wheel bridge transverse slat 11 and automobile shaft lever brake wheel 39 increases, thus make to revolve squeeze be stuck in split under between lower plate transverse slat 10 and automobile shaft lever brake wheel 39 shape brake facing 12 or between train wheel bridge transverse slat 11 and automobile shaft lever brake wheel 39 on split shape brake facing 14 and obtain loosening space, and under the spring-force driven dual of cone fine stern axle spring 28, make pincerlike ring set be moved to the left to cone fine stern axle 9 return and be fitted in taper hole 8, braking state is removed.
Automobile shaft lever brake wheel 39 to be securely fixed on automobile shaft lever 13 and to rotate with automobile shaft lever 13.
Automobile shaft lever brake wheel 39 periphery is more coarse and the brake lining of antifriction, the medial surface i.e. one side of close automobile shaft lever brake wheel 39 of splitting shape brake facing up and down is also more coarse and the brake lining of antifriction, and can form larger friction force with automobile shaft lever brake wheel 39, but the antifriction surface hardness splitting shape brake facing medial surface is up and down less than the antifriction surface hardness of automobile shaft lever brake wheel 39 periphery.
The upper plane of lower plate transverse slat 10 and the lower plane smoother of train wheel bridge transverse slat, the lateral surface splitting shape brake facing is up and down the one side also smoother of plane and train wheel bridge transverse slat lower plane on lower plate transverse slat 10, and can make to split up and down shape brake facing the upper plane of lower plate transverse slat 10 and train wheel bridge transverse slat lower plane easily less friction move, thus can make to split up and down shape brake facing and shift to automobile shaft lever brake wheel 39 and form rotary squeezing brake.
Lower plate transverse slat 10 is strip shape with train wheel bridge transverse slat and width is identical, under split shape brake facing 12 with on split shape brake facing 14 and be strip shape and width is identical, the width of train wheel bridge transverse slat is identical with the width above splitting shape brake facing 14.
Parking brake in operator's compartment changes two grades into, does not change the custom of existing brake, when parking brake moves first grade to, the hand brake device that a parking brake driving automobile is now installed, and do not drive total bracing wire 23 to move right, so when parking brake moves first grade to, brake do not implemented by emergency brake bag; When parking brake moves second gear to, drive total bracing wire 23 to move right, and drive pincerlike ring set bracing wire 22 and draw bull stick bracing wire 25, implement emergency manual brake.
Claims (1)
1. brake gear before and after descending auto-control is wrapped in emergency brake, comprise a weight (A8) and a weight fork (A10), and the weight swing shaft (A7) that weight fork (A10) top is fixing, the bottom of weight (A8) is provided with weight bottom pole (A9), two bracing wires are fastened in weight bottom pole (A9), be respectively bracing wire (A14) before weight back guy (A4) and weight, weight back guy (A4) is fixedly linked by the rear braking bag bracing wire in weight back guy regulation and control track adjusting wheel (A5) and the middle rear braking bag bracing wire of other bracing wire track adjusting wheels (A18) and rear braking bag bracing wire (A6) and face, chassis parallel-segment (A3) and face, chassis parallel-segment mid point (A19), bracing wire before weight (A14) is fixedly linked by the Front brake bag bracing wire in bracing wire regulation and control track adjusting wheel (A12) before weight and the middle Front brake bag bracing wire of other bracing wire track adjusting wheels (A18) and Front brake bag bracing wire (A11) and face, chassis parallel-segment (A15) and face, chassis parallel-segment mid point (A20), it is characterized in that: the brake total bracing wire of bag (A13) is divided into rear braking bag bracing wire (A6) and Front brake bag bracing wire (A11) two branch line by bracing wire track adjusting wheel (A18), rear braking bag bracing wire (A6) draws bull stick (A1) and pincerlike ring set bracing wire (22) to be fixedly linked by multiple bracing wire track adjusting wheel (A18) afterwards with the rear braking bag of rear braking bag (A2), the one section of rear braking bag bracing wire (A6) between two bracing wire track adjusting wheels (A18) is had to be parallel to chassis plane in the position near rear braking bag (A2), be called the bracing wire of rear braking bag and face, chassis parallel-segment (A3), weight back guy (A4) and the fixed connection point of weight bottom pole (A9) are the initiating terminal of weight back guy (A4), the initiating terminal of weight back guy (A4) is first through weight back guy regulation and control track adjusting wheel (A5), then through multiple bracing wire track adjusting wheel (A18), the bracing wire of rear braking bag and the face, chassis parallel-segment mid point (A19) in last and the bracing wire of rear braking bag and face, chassis parallel-segment (A3) are fixedly linked, Front brake bag bracing wire (A11) draws bull stick (A17) and pincerlike ring set bracing wire (22) to be fixedly linked by multiple bracing wire track adjusting wheel (A18) afterwards with the Front brake bag of Front brake bag (A16), the one section of Front brake bag bracing wire (A11) between two bracing wire track adjusting wheels (A18) is had to be parallel to chassis plane in the position near Front brake bag (A16), be called the bracing wire of Front brake bag and face, chassis parallel-segment (A15), bracing wire before weight (A14) and the fixed connection point of weight bottom pole (A9) are the initiating terminal of bracing wire (A14) before weight, the initiating terminal of bracing wire before weight (A14) is first through bracing wire regulation and control track adjusting wheel (A12) before weight, then through multiple bracing wire track adjusting wheel (A18), the bracing wire of Front brake bag and the face, chassis parallel-segment mid point (A20) in last and the bracing wire of Front brake bag and face, chassis parallel-segment (A15) are fixedly linked, when automobile up slope travels, during automobile up slope, car chassis becomes a α angle with horizontal surface, because weight fork (A10) remains perpendicular to horizontal surface in the process of going up a slope, so weight fork (A10) now becomes a α angle backward with the perpendicular line of car chassis, now, because the effect of bracing wire regulation and control track adjusting wheel (A12) before weight, make weight bottom pole (A9) of weight (A8) bottom that bracing wire (A14) before the weight on weight fork (A10) right side is moved a segment distance D to Zola, but the weight back guy (A4) of weight bottom pole (A9) to weight fork (A10) left side does not play tensioning function, bracing wire before being moved to the left the weight of distance D (A14) makes the Front brake bag bracing wire in the bracing wire of Front brake bag and face, chassis parallel-segment (A15) and face, chassis parallel-segment mid point (A20) carry a segment distance H to pull-up by bracing wire regulation and control track adjusting wheel (A12) and other bracing wire track adjusting wheels (A18) before weight, this draws carries distance H and makes the Front brake bag of Front brake bag (A16) draw bull stick (A17) to clickwise angle Ф, and the pincerlike ring set bracing wire (22) of Front brake bag (A16) is moved right distance L, but Front brake bag draws bull stick (A17) to be also not enough to make Front brake bag (A16) produce the degree of emergency brake to the pincerlike ring set bracing wire (22) of clickwise angle Ф and Front brake bag (A16) the distance L that moves right, angle [alpha] is larger, D is larger, H is also larger, Ф and L is also larger, design is when the gradient of automobile up slope reaches 45o angle, Front brake bag draws bull stick (A17) to make Front brake bag (A16) produce emergency brake to the pincerlike ring set bracing wire (22) of clickwise angle Ф and Front brake bag (A16) the distance L that moves right, at automobile up slope but under the gradient is less than 45o horn shape state, if the automobile now gone up a slope needs emergency brake to pack tightly sudden stop, then automobile driver pulls parking brake to second gear, making brake wrap total bracing wire (A13) drives rear braking bag bracing wire (A6) and Front brake bag bracing wire (A11) to move, because a segment distance H is carried to pull-up in the bracing wire of Front brake bag and the face, chassis parallel-segment mid point (A20) of the automobile in travelling, so the brake total bracing wire of bag (A13) drives in rear braking bag bracing wire (A6) and Front brake bag bracing wire (A11) moving process, first Front brake bag bracing wire (A11) is made to drive the Front brake bag of Front brake bag (A16) to draw bull stick (A17) and pincerlike ring set bracing wire (22) to make Front brake bag (A16) more be introduced into braking state than rear braking bag (A2), can not occur because trailing wheel brakes in advance when so just making the automobile emergency brake bag of up-hill journey brake overturning, when automobile downhill travels, during automobile downhill, car chassis becomes a β angle with horizontal surface, because weight fork (A10) remains perpendicular to horizontal surface in the process of descending, so weight fork (A10) now becomes a β angle backward with the perpendicular line of car chassis, now, because the effect of weight back guy regulation and control track adjusting wheel (A5), the weight back guy (A4) in weight fork (A10) left side is drawn to the right by weight bottom pole (A9) of weight (A8) bottom and moves a segment distance D, but tensioning function is not played to bracing wire (A14) before the weight on weight fork (A10) right side in weight bottom pole (A9), move right distance D weight back guy (A4) by weight back guy regulation and control track adjusting wheel (A5) and other bracing wire track adjusting wheels (A18) make the rear braking bag bracing wire in the bracing wire of rear braking bag and face, chassis parallel-segment (A3) and face, chassis parallel-segment mid point (A19) carry a segment distance H to pull-up, this draws carries distance H and makes the rear braking bag of rear braking bag (A2) draw bull stick (A1) to clickwise angle Ф, and pincerlike ring set bracing wire (22) is moved right distance L, but rear braking bag draws bull stick (A1) to be also not enough to make rear braking bag (A2) produce the degree of emergency brake to the pincerlike ring set bracing wire (22) of clickwise angle Ф and rear braking bag (A2) the distance L that moves right, angle beta is larger, D is larger, H is also larger, Ф and L is also larger, design is when the gradient of automobile downhill reaches 45o angle, rear braking bag draws bull stick (A1) to make rear braking bag (A2) produce emergency brake to the pincerlike ring set bracing wire (22) of clickwise angle Ф and rear braking bag (A2) the distance L that moves right, at automobile downhill but under the gradient is less than 45o horn shape state, if now the automobile of descending needs emergency brake to pack tightly sudden stop, then automobile driver pulls parking brake to second gear, making brake wrap total bracing wire (A13) drives rear braking bag bracing wire (A6) and Front brake bag bracing wire (A11) to move, because the bracing wire of rear braking bag and face, the chassis parallel-segment mid point A19 of the automobile in travelling carry a segment distance H to pull-up, so the brake total bracing wire of bag (A13) drives in rear braking bag bracing wire (A6) and Front brake bag bracing wire (A11) moving process, first rear braking bag bracing wire (A6) is made to drive the rear braking bag of rear braking bag (A2) to draw the pincerlike ring set bracing wire (22) of bull stick (A1) and rear braking bag (A2) to make rear braking bag (A2) more be introduced into braking state than Front brake bag (A16), can not occur because front-wheel brakes in advance when so just making the automobile emergency brake bag of descent run brake overturning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510228843.1A CN104802782A (en) | 2015-05-08 | 2015-05-08 | Emergency brake package uphill-downhill front-rear brake automatically adjusting and controlling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510228843.1A CN104802782A (en) | 2015-05-08 | 2015-05-08 | Emergency brake package uphill-downhill front-rear brake automatically adjusting and controlling device |
Publications (1)
| Publication Number | Publication Date |
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| CN104802782A true CN104802782A (en) | 2015-07-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510228843.1A Pending CN104802782A (en) | 2015-05-08 | 2015-05-08 | Emergency brake package uphill-downhill front-rear brake automatically adjusting and controlling device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112498543A (en) * | 2020-12-07 | 2021-03-16 | 苏州市职业大学 | Baby carrier slope anti-overturning device |
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| JP2006312372A (en) * | 2005-05-09 | 2006-11-16 | Nissin Kogyo Co Ltd | Brake controlling device for vehicle |
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| CN112498543A (en) * | 2020-12-07 | 2021-03-16 | 苏州市职业大学 | Baby carrier slope anti-overturning device |
| CN112498543B (en) * | 2020-12-07 | 2022-02-22 | 苏州市职业大学 | Baby carrier slope anti-overturning device |
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Application publication date: 20150729 |