CN204512239U - Return from opening and closing and loosen emergency brake arrangement of stopping - Google Patents

Abstract

Return from opening and closing and loosen emergency brake arrangement of stopping, comprise the pincerlike ring set be arranged in brake bag, have outside pincerlike ring set upper half part outside a punch holder, pincerlike ring set lower half portion and have a die holder, 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, both arms after pincerlike ring set, on split shape brake block, under split shape brake block, forearm on pincerlike ring set, forearm under pincerlike ring set, pincerlike ring set is gone forward torque arm, torque arm before under pincerlike ring set, front torque arm head of joining connects to form, pincerlike ring set is wrapped in automobile shaft lever brake wheel, the left and right sides of upper die holder circle-arc tooth plate all have the gear teeth, a long master gear is engage between punch holder circular arc tooth plate left side tooth and die holder circular arc tooth plate right side tooth, upper die holder can rotate around upper die holder running shaft, make punch holder transverse slat can brake wrap end level board inner side surface and on to split between shape brake block movable.

Description

Return from opening and closing and loosen emergency brake arrangement of stopping

Technical field

The present invention relates to return from opening and closing and loosen emergency brake arrangement of stopping, be applicable to all Motor Vehicle, belong to braking automobile and security technology area.

Background technique

We often hear many automobiles particularly large-scale truck, due to brake failure generation major accident, because the hydraulic coupling that the present braking automobile of one side needs motor 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 standby 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 motor, 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 " 201110270541.2 automobile shaft lever wedge extrusion emergency brake bag " of Wei Baiqing achieves not by the Manual braking of engine power, pure machinery, but need hydraulic power to untie brake system after brake, the present invention, to this has been improvement, manually can return after the Manual braking system brake after improvement and loosen brake block.

Summary of the invention

The object of this invention is to provide one can utilize hand-drawing dynamic can realize braking under any operation or state of rest, under engine operation or halted state, does not particularly need motor car engine power brake in emergency situations and can manually return again after brake to loosen returning from opening and closing of stopping and loosen Emergency braking bag of stopping.

Return from opening and closing and loosen Emergency braking bag of stopping, comprise the pincerlike ring set be arranged in brake bag, have outside pincerlike ring set upper half part outside a punch holder, pincerlike ring set lower half portion and have a die holder; It is characterized in that:

1, pincerlike ring set is a pincerlike ring-type, pincerlike ring set is from left to right successively by cone fine stern axle, both arms after pincerlike ring set, on split shape brake block, under split shape brake block, forearm on pincerlike ring set, forearm under pincerlike ring set, pincerlike ring set is gone forward torque arm, torque arm before under pincerlike ring set, front torque arm head of joining connects to form, pincerlike ring set is wrapped on the automobile shaft lever of brake bag inner section, automobile shaft lever outer shroud bag automobile shaft lever brake wheel of this section, the cone fine stern axle of pincerlike ring set is set on in the cone shape hole on the support that wraps and be fixedly linked of braking, when the cone fine stern of pincerlike ring set axially moves right S distance, 10mm≤S, the cone fine stern axle of taper can swing up and down in cone shape hole, the left end tip of cone fine stern axle is provided with a cone fine stern axle spring, the left end of cone fine stern axle spring is fixedly mounted on and wraps the support be fixedly linked and bore on fine stern axle spring fixed column with braking, the effect of cone fine stern axle spring is after pincerlike ring set moves right brake, releasing of brake line and untie die holder clamping time, pincerlike ring set is withdrawn into cone fine stern axle left and is posted in position in cone shape hole completely, before under the pincerlike ring set of pincerlike ring set right-hand member, the torque arm of going forward of torque arm and pincerlike ring set is set in the trapezoidal hole of brake bag right side, before under the hole right output port of trapezoidal hole and osculum internal diameter size and pincerlike ring set, torque arm and pincerlike ring set torque arm external diameter size of going forward matches, the hole left port of trapezoidal hole and large mouth internal diameter are worth up and down and are worth large 30% ~ 50% up and down than torque arm before under pincerlike ring set and pincerlike ring set torque arm external diameter of going forward, pincerlike ring set is moved right and by after automobile shaft lever rotary squeezing, pincerlike ring set is split shape brake block and under split shape brake block and can swing up and down around the hole right output port of trapezoidal hole, the front torque arm of pincerlike ring set right-hand member head of joining connects pincerlike ring set bracing wire.

2, the punch holder of one piece of U-shaped is installed outside upper half part of pincerlike ring set, the die holder of one piece of U-shaped is installed outside lower half portion of pincerlike ring set, punch holder left end is lower curved circular arc punch holder circular arc tooth plate, the circular arc center of circle of punch holder circular arc tooth plate is the axle center of upper die holder running shaft, namely the circular arc of punch holder circular arc tooth plate is the axle center of above die holder running shaft is the center of circle, the axle center of above die holder running shaft is the circular arc that radius is drawn to punch holder circular arc tooth plate arbitrfary point, die holder left end is upper curved circular arc die holder circular arc tooth plate, the circular arc center of circle of die holder circular arc tooth plate is the axle center of upper die holder running shaft, namely the circular arc of die holder circular arc tooth plate is the axle center of above die holder running shaft is the center of circle, the axle center of above die holder running shaft is the circular arc that radius is drawn to die holder circular arc tooth plate arbitrfary point, the radius of arc of die holder circular arc tooth plate is larger than the radius of arc of punch holder circular arc tooth plate, the left and right sides of punch holder circular arc tooth plate all have the gear teeth, the punch holder circular arc tooth plate left surface gear teeth are punch holder circular arc tooth plate left side tooth, the punch holder circular arc tooth plate right flank gear teeth are punch holder circular arc tooth plate right side tooth, the left and right sides of die holder circular arc tooth plate all have the gear teeth, the die holder circular arc tooth plate left surface gear teeth are die holder circular arc tooth plate left side tooth, the die holder circular arc tooth plate right flank gear teeth are die holder circular arc tooth plate right side tooth, a long master gear is engage between the punch holder circular arc tooth plate left side tooth of punch holder circular arc tooth plate and the die holder circular arc tooth plate right side tooth of die holder circular arc tooth plate, the punch holder circular arc tooth plate right side tooth of punch holder circular arc tooth plate engages a right pinion, the effect of right pinion is the motion track limiting punch holder circular arc tooth plate, the die holder circular arc tooth plate left side tooth of die holder circular arc tooth plate engages a left pinion, the effect of left pinion is the motion track limiting die holder circular arc tooth plate, before the punch holder of the punch holder circular arc tooth plate right-hand member of U-shaped, curved boom termination has a rotary shaft hole to be curved boom rotating shaft cover before punch holder, before punch holder, curved boom rotating shaft cover is sleeved on die holder running shaft, punch holder can do positive inhour around upper die holder running shaft and rotate, make punch holder transverse slat brake wrap end level board inner side surface and on to split between shape brake block movable, thus regulate the distance between punch holder transverse slat and automobile shaft lever brake wheel, before the die holder of the die holder circular arc tooth plate right-hand member of U-shaped, curved boom termination has a rotary shaft hole to be curved boom rotating shaft cover before die holder, before die holder, curved boom rotating shaft cover is sleeved on die holder running shaft, die holder can do positive inhour around upper die holder running shaft and rotate, make die holder transverse slat the level board inner side surface of brake bag lower end and under to split between shape brake block movable, thus regulate the distance between die holder transverse slat and automobile shaft lever brake wheel, the inner side that before curved boom rotating shaft cover is arranged on two punch holders before two die holders, curved boom rotating shaft is overlapped, object is that before punch holder, curved boom rotating shaft is overlapped stressed chance to overlap stressed chance than curved boom rotating shaft before die holder much bigger, because brake when punch holder advances for automobile, and die holder brakes for rolling-back of car or when falling back.

3, be provided with one on the upside of long master gear central authorities and draw bull stick, the upper end of bull stick is drawn to be connected with drawing bull stick bracing wire, bull stick bracing wire is drawn to lead through multiple bracing wire upper saw pulley, last and pincerlike ring set bracing wire is merged into total bracing wire, total bracing wire is connected with the parking brake in operator cabin, after parking brake pull-up drives total bracing wire and drive draws the upper end of bull stick to move a certain distance from left to right, draw bull stick to move right and make long master gear overcome the spring-force driven dual of master gear return spring to right rotation angle Ф, 15o≤Ф≤45o, long master gear rotarily drives die holder circular arc tooth plate to the right and moves up, the upper plate surface of die holder transverse slat is made to become level, even if the upper plate surface of die holder transverse slat and the axis parallel wrapped that brakes, the horizontal interior walls of also wrapping downside with brake is parallel, long master gear rotarily drives punch holder circular arc tooth plate to the right and moves down, the lower face of punch holder transverse slat is made to become level, even if the lower face of punch holder transverse slat and the axis parallel wrapped that brakes, also the horizontal interior walls wrapping side with brake is parallel, parking brake pull-up drives total bracing wire and drives the upper end of drawing bull stick from left to right while movement, also the cone fine stern axle spring spring-force driven dual driving pincerlike ring set bracing wire to overcome pincerlike ring set left end moves right, and split under making pincerlike ring set shape brake block and on split shape brake block and move right, due under split shape brake block and above split shape brake block be thick one end, one end thin split shape, and under split shape brake block and on split shape brake block to be the thick right-hand member of left end thin, its by thick to thin be linear change, on split shape brake block inner side surface and become a α angle with the horizontal interior walls that side is wrapped in brake, 15 o≤α≤45 o, brake bag is when being in non-braking state, and the upper side above splitting shape brake block becomes a small angle β, 1o≤β≤5 o with the horizontal interior walls of wrap of braking, under split shape brake block inner side surface and become a α angle, 15 o≤α≤45 o with the horizontal interior walls on the downside of wrapping of braking, brake bag is when being in non-braking state, under split shape brake block downside become a small angle β, 1o≤β≤5 o with the horizontal interior walls that brake is wrapped, individual activity-oriented is had to take turns before drawing bull stick bracing wire to be connected to total bracing wire, an activity-oriented wheel shaft is had in activity-oriented wheel, activity-oriented wheel shaft top connects an activity-oriented wheel pivoted arm, the upper end of activity-oriented wheel pivoted arm is sleeved on activity-oriented wheel and curls up on axle, activity-oriented wheel curls up outside axle has one to curl up outside axle around spring, activity-oriented wheel can rotate around activity-oriented wheel shaft, activity-oriented wheel can also revolve around activity-oriented wheel simultaneously and pivot together with activity-oriented wheel pivoted arm, activity-oriented wheel curls up the spring-return power of curling up around spring outside axle outside axle, be greater than and draw bull stick bracing wire to pull bull stick and drive the pulling force that long master gear rotates, and total bracing wire pull bull stick bracing wire and drive pull bull stick rotate and long master gear rotate to right rotation angle Ф, when making the lower face of punch holder transverse slat and the upper plate surface of die holder transverse slat all become level, total bracing wire just pulls pincerlike ring set bracing wire to drive pincerlike ring set to move right, and make pincerlike ring set on split shape brake block and under split shape brake block and move right and enter braking state, so, after total bracing wire pulls bull stick bracing wire to make the lower face of punch holder transverse slat all become level with the upper plate surface of die holder transverse slat, total bracing wire continues to pull bull stick bracing wire to move to right but cannot drive draws bull stick and long master gear to rotate, and now total bracing wire continues to pull bull stick bracing wire and drive activity-oriented to take turns and activity-oriented wheel pivoted arm curls up axle around activity-oriented wheel and overcomes to curl up outside axle and rotate around spring, and do not affect total bracing wire and pull pincerlike ring set bracing wire to drive pincerlike ring set to move right, if automobile is in forward travel state when parking brake pull-up drives total bracing wire, then automobile shaft lever outsourcing automobile shaft lever brake wheel rotate to be to right rotation, dextrorotation is split shape brake block and is got into space between punch holder transverse slat and automobile shaft lever brake wheel on driving, form extruding locking brake, if automobile is in fallback state when parking brake pull-up drives total bracing wire, then automobile shaft lever outsourcing automobile shaft lever brake wheel rotate to be to anticlockwise, split shape brake block under left-handed drive and get into space between die holder transverse slat and automobile shaft lever brake wheel, form extruding locking brake.

4, when putting down parking brake and unclamping total bracing wire, draw bull stick bracing wire and pincerlike ring set bracing wire to be unclamped simultaneously, due to the active force of master gear return spring, make long master gear angle of swing Ф left, die holder circular arc tooth plate is driven to move down, move up with punch holder circular arc tooth plate, and drive die holder transverse slat to move down around upper die holder running shaft rotation, move down around upper die holder running shaft rotation with punch holder transverse slat, thus make down to split shape brake block and above split shape brake block to obtain certain loosening space, even if the distance between die holder transverse slat and automobile shaft lever brake wheel increases, with the distance between punch holder transverse slat and automobile shaft lever brake wheel increases, thus make to revolve squeeze be stuck in split under between die holder transverse slat and automobile shaft lever brake wheel shape brake block or between punch holder transverse slat and automobile shaft lever brake wheel on split shape brake block and obtain loosening space, and under the spring-force driven dual of cone fine stern axle spring, make pincerlike ring set be moved to the left to cone fine stern axle return and be fitted in cone shape hole, braking state is removed.

5, automobile shaft lever brake wheel to be securely fixed on automobile shaft lever and to rotate with automobile shaft lever.

6, automobile shaft lever brake wheel periphery is more coarse and the brake lining of antifriction, the inner side surface i.e. one side of close automobile shaft lever brake wheel of splitting shape brake block up and down is also more coarse and the brake lining of antifriction, and can form larger frictional force with automobile shaft lever brake wheel, but the antifriction surface hardness splitting shape brake block inner side surface is up and down less than the antifriction surface hardness of automobile shaft lever brake wheel periphery.

7, the upper plane of die holder transverse slat and the lower plane smoother of punch holder transverse slat, the outer side surface splitting shape brake block is up and down the one side also smoother of plane and punch holder transverse slat lower plane on die holder transverse slat, and can make to split up and down shape brake block the upper plane of die holder transverse slat and punch holder transverse slat lower plane easily less friction move, thus can make to split up and down shape brake block and shift to automobile shaft lever brake wheel and form rotary squeezing brake.

8, die holder transverse slat is long strip with punch holder transverse slat and width is identical, under split shape brake block with on split shape brake block and be long strip and width is identical, the width of punch holder transverse slat is identical with the width above splitting shape brake block.

9, the parking brake in operator cabin 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 to move right, so when parking brake moves first grade to, brake do not implemented by Emergency braking bag; When parking brake moves second gear to, drive total bracing wire to move right, and drive pincerlike ring set bracing wire and draw bull stick bracing wire, implement emergency manual brake.

The present invention compared with prior art has the following advantages:

1, the present invention can be used in unpowered under emergency brake arrangement.

2, the present invention makes simply, and braking effect is good, and particularly Emergency braking is effective.

3, the present invention as auxiliary brake, also can replace existing hand brake device.

4, the present invention can be arranged on the axostylus axostyle near multiple wheel, does not affect existing all braking devices and other safety installationss etc.

5, brake of the present invention is removed does not need the outer power such as engine power, electric-powered, hydraulic power, Pneumatic pressure power.

Accompanying drawing explanation

Fig. 1 is the structural representation of the embodiment of the present invention;

Fig. 2 is that status architecture schematic diagram is closed in middle clamp plate embodiment illustrated in fig. 1 conjunction;

Fig. 3 is middle AA generalized section embodiment illustrated in fig. 1;

Fig. 4 is schematic top plan view embodiment illustrated in fig. 1;

Fig. 5 is upper die holder schematic side view embodiment illustrated in fig. 1;

Fig. 6 is that schematic diagram is looked on a upper die holder left side embodiment illustrated in fig. 1;

Fig. 7 is middle P enlarged diagram embodiment illustrated in fig. 1;

Fig. 8 be embodiment illustrated in fig. 1 in split shape brake block schematic top plan view;

Fig. 9 is middle Q enlarged diagram embodiment illustrated in fig. 1;

Figure 10 is middle R enlarged diagram embodiment illustrated in fig. 1;

Figure 11 is middle S enlarged diagram embodiment illustrated in fig. 1.

In Fig. 1-11: 1, brake outsourcing 2, left pinion 3, die holder circular arc tooth plate 4, draw bull stick 5, long master gear 6, punch holder circular arc tooth plate 7, right pinion 8, cone shape hole 9, cone fine stern axle 10, die holder transverse slat 11, punch holder transverse slat 12, under split shape brake block 13, automobile shaft lever 14, on split shape brake block 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 die holder, pincerlike ring set is gone forward torque arm 20, upper die holder running shaft 21, front torque arm joins 22, pincerlike ring set bracing wire 23, total bracing wire 24, curved boom 25 before punch holder, draw bull stick bracing wire 26, bracing wire upper saw pulley 27, cone fine stern axle spring fixed column 28, cone fine stern axle spring 29, master gear return spring 30, the upper and lower forearm of pincerlike ring set joins 31, curved boom rotating shaft cover 32 before die holder, curved boom rotating shaft cover 33 before punch holder, die holder circular arc tooth plate left side tooth 34, die holder circular arc tooth plate right side tooth 35, punch holder circular arc tooth plate left side tooth 36, punch holder circular arc tooth plate right side tooth 37, both arms 38 after pincerlike ring set, trapezoidal hole 39, automobile shaft lever brake wheel.

Embodiment

In the embodiment shown in Fig. 1-11: return from opening and closing and loosen Emergency braking bag of stopping, comprise the pincerlike ring set be arranged in brake bag 1, have outside pincerlike ring set upper half part outside a punch holder, pincerlike ring set lower half portion and have a die holder, 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 block 14, under split shape brake block 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 cone shape 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 cone shape 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 die holder clamping time, pincerlike ring set is withdrawn into cone fine stern axle 9 left and is posted in position in cone shape 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 block 14 and under split shape brake block 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 punch holder of one piece of U-shaped is installed outside upper half part of pincerlike ring set, the die holder of one piece of U-shaped is installed outside lower half portion of pincerlike ring set, punch holder left end is lower curved circular arc punch holder circular arc tooth plate 6, the circular arc center of circle of punch holder circular arc tooth plate 6 is the axle center of upper die holder running shaft 20, namely the circular arc of punch holder circular arc tooth plate 6 is axle center of above die holder running shaft 20 is the center of circle, the axle center of above die holder running shaft 20 is the circular arc that radius is drawn to punch holder circular arc tooth plate 6 arbitrfary point, die holder left end is upper curved circular arc die holder circular arc tooth plate 3, the circular arc center of circle of die holder circular arc tooth plate 3 is the axle center of upper die holder running shaft 20, namely the circular arc of die holder circular arc tooth plate 3 is axle center of above die holder running shaft 20 is the center of circle, the axle center of above die holder running shaft 20 is the circular arc that radius is drawn to die holder circular arc tooth plate 3 arbitrfary point, the radius of arc of die holder circular arc tooth plate 3 is larger than the radius of arc of punch holder circular arc tooth plate 6, the left and right sides of punch holder circular arc tooth plate 6 all have the gear teeth, the punch holder circular arc tooth plate 6 left surface gear teeth are punch holder circular arc tooth plate left side tooth 35, the punch holder circular arc tooth plate 6 right flank gear teeth are punch holder circular arc tooth plate right side tooth 36, the left and right sides of die holder circular arc tooth plate 3 all have the gear teeth, the die holder circular arc tooth plate 3 left surface gear teeth are die holder circular arc tooth plate left side tooth 33, the die holder circular arc tooth plate 3 right flank gear teeth are die holder circular arc tooth plate right side tooth 34, a long master gear 5 is engage between the punch holder circular arc tooth plate left side tooth 35 of punch holder circular arc tooth plate 6 and the die holder circular arc tooth plate right side tooth 34 of die holder circular arc tooth plate 3, the punch holder circular arc tooth plate right side tooth 36 of punch holder circular arc tooth plate 6 engages a right pinion 7, the effect of right pinion 7 is the motion tracks limiting punch holder circular arc tooth plate 6, the die holder circular arc tooth plate left side tooth 33 of die holder circular arc tooth plate 3 engages a left pinion 2, the effect of left pinion 2 is the motion tracks limiting die holder circular arc tooth plate 3, before the punch holder of punch holder 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 punch holder, before punch holder, curved boom rotating shaft cover 32 is sleeved on die holder running shaft 20, punch holder can do positive inhour around upper die holder running shaft 20 and rotate, make punch holder transverse slat 11 the level board inner side surface of brake bag 1 upper end and on to split between shape brake block 14 movable, thus regulate the distance between punch holder transverse slat 11 and automobile shaft lever brake wheel 39, before the die holder of die holder 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 die holder, before die holder, curved boom rotating shaft cover 31 is sleeved on die holder running shaft 20, die holder can do positive inhour around upper die holder running shaft 20 and rotate, make die holder transverse slat 10 the level board inner side surface of brake bag 1 lower end and under to split between shape brake block 12 movable, thus regulate the distance between die holder transverse slat 10 and automobile shaft lever brake wheel 39, before before two die holders, curved boom rotating shaft cover 31 is arranged on two punch holders, the inner side of 32 is overlapped in curved boom rotating shaft, object is that before punch holder, curved boom rotating shaft is overlapped 32 stressed chances to overlap 31 stressed chances than curved boom rotating shaft before die holder much bigger, because brake when punch holder advances for automobile, and die holder brakes for rolling-back of car or when falling back.

Long master 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 upper saw pulley 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 cabin, 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 master gear 5 overcome the spring-force driven dual of master gear return spring 29 to right rotation angle Ф, 15o≤Ф≤45o, long master gear 5 rotarily drives die holder circular arc tooth plate 3 to the right and moves up, the upper plate surface of die holder transverse slat 10 is made to become level, even if the axis parallel of the upper plate surface of die holder transverse slat 10 and brake bag 1, long master gear 5 rotarily drives punch holder circular arc tooth plate 6 to the right and moves down, the lower face of punch holder transverse slat 11 is made to become level, even if the axis parallel of the lower face of punch holder 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 block 12 and on split shape brake block 14 and move right, due under split shape brake block 12 and above split shape brake block 14 for thick one end, one end thin split shape, and under split shape brake block 12 and on split shape brake block 14 to be the thick right-hand member of left end thin, its by thick to thin be linear change, on split shape brake block 14 inner side 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 block 14 upper side become a small angle β with the horizontal interior walls of brake bag 1,1o≤β≤5 o, under split shape brake block 12 inner side surface with brake bag 1 on the downside of horizontal interior walls become a α angle, 15 o≤α≤45 o, when brake bag is in non-braking state, under split shape brake block 12 downside become a small angle β with the horizontal interior walls of brake bag 1, 1o≤β≤5 o, so, 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 block 14 and is got into space between punch holder 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 block 12 under left-handed drive and get into space between die holder 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, due to the active force of master gear return spring 29, make long master gear 5 angle of swing Ф left, die holder circular arc tooth plate 3 is driven to move down, move up with punch holder circular arc tooth plate 6, and drive die holder transverse slat 10 to move down around upper die holder running shaft 20 rotation, move down around upper die holder running shaft 20 rotation with punch holder transverse slat 11, thus make down to split shape brake block 12 and above split shape brake block 14 to obtain certain loosening space, even if the distance between die holder transverse slat 10 and automobile shaft lever brake wheel 39 increases, with the distance between punch holder transverse slat 11 and automobile shaft lever brake wheel 39 increases, thus make to revolve squeeze be stuck in split under between die holder transverse slat 10 and automobile shaft lever brake wheel 39 shape brake block 12 or between punch holder transverse slat 11 and automobile shaft lever brake wheel 39 on split shape brake block 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 cone shape 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 inner side surface i.e. one side of close automobile shaft lever brake wheel 39 of splitting shape brake block up and down is also more coarse and the brake lining of antifriction, and can form larger frictional force with automobile shaft lever brake wheel 39, but the antifriction surface hardness splitting shape brake block inner side surface is up and down less than the antifriction surface hardness of automobile shaft lever brake wheel 39 periphery.

The upper plane of die holder transverse slat 10 and the lower plane smoother of punch holder transverse slat, the outer side surface splitting shape brake block is up and down the one side also smoother of plane and punch holder transverse slat lower plane on die holder transverse slat 10, and can make to split up and down shape brake block the upper plane of die holder transverse slat 10 and punch holder transverse slat lower plane easily less friction move, thus can make to split up and down shape brake block and shift to automobile shaft lever brake wheel 39 and form rotary squeezing brake.

Die holder transverse slat 10 is long strip with punch holder transverse slat and width is identical, under split shape brake block 12 with on split shape brake block 14 and be long strip and width is identical, the width of punch holder transverse slat is identical with the width above splitting shape brake block 14.

Parking brake in operator cabin 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 braking 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 (2)

1. return from opening and closing and loosen emergency brake arrangement of stopping, comprise the pincerlike ring set be arranged in brake bag (1), have outside pincerlike ring set upper half part outside a punch holder, pincerlike ring set lower half portion and have a die holder, 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 block (14), under split shape brake block (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 head (21) of joining connects 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 be set on brake and wrap on support that (1) be fixedly linked cone shape hole (8) in, the left end tip of cone fine stern axle (9) is provided with cone fine stern axle spring (28), the left end of cone fine stern axle spring (28) is fixedly mounted on and wraps the support that (1) be fixedly linked and bore on fine stern axle spring fixed column (27) with braking.

2. as claimed in claim 1 returning from opening and closing loosens emergency brake arrangement of stopping, it is characterized in that: the punch holder being provided with one piece of U-shaped outside upper half part of pincerlike ring set, the die holder of one piece of U-shaped is installed outside lower half portion of pincerlike ring set, punch holder left end is lower curved circular arc punch holder circular arc tooth plate (6), die holder left end is upper curved circular arc die holder circular arc tooth plate (3), the left and right sides of punch holder circular arc tooth plate (6) all have the gear teeth, punch holder circular arc tooth plate (6) the left surface gear teeth are punch holder circular arc tooth plate left side tooth (35), punch holder circular arc tooth plate (6) the right flank gear teeth are punch holder circular arc tooth plate right side tooth (36), the left and right sides of die holder circular arc tooth plate (3) all have the gear teeth, die holder circular arc tooth plate (3) the left surface gear teeth are die holder circular arc tooth plate left side tooth (33), die holder circular arc tooth plate (3) the right flank gear teeth are die holder circular arc tooth plate right side tooth (34).