CN203332032U - Traction type hijack-preventing device for car - Google Patents

Abstract

A traction type hijack-preventing device for a car solves the problems that unbalanced loading is prone to occurring to an existing transmission mechanism, an upper beam assembly is unbalanced, lifting is unstable, and restriction to an attacker in the car fails. The device comprises an upper beam assembly, a lower beam assembly and a transmission mechanism assembly, wherein the upper beam assembly and the lower beam assembly are assembled on the bottom of a seat in the car. The device is characterized in that two sets of transmission mechanisms are adopted in the transmission mechanism assembly and are arranged symmetrically, and each set of the transmission mechanisms is provided with two motors which are arranged symmetrically and drive corresponding driving wheels respectively to rotate to pull transmission ropes so as to drive sliding blocks to move along guide sliding grooves of sleeves, so that two upper supporting rods and two lower supporting rods extend synchronously to drive the upper beam assembly to be lifted in a balanced mode and an inclined included angle is formed between a seat cushion and a backrest of the seat, and the two upper supporting rods and two lower supporting rods are symmetrically distributed on the upper beam assembly and the lower beam assembly respectively. Stress distribution of components is reasonable, limited space of the bottom of the seat in the car is in full use, lifting is convenient, flexible and stable, use is safe and reliable, hijack-preventing performance is further improved, and a driver is effectively prevented from being attacked by a person in the car.

Description

The towed antihijacking device of car

Technical field

The utility model relates to a kind of vehicle safety protection device, particularly a kind ofly improvedly for protecting chaufeur, suffers the towed antihijacking device of car that the occupant attacks.

Background technology

Existingly for protecting chaufeur, suffer the safe antihijacking device of car that the occupant attacks, generally adopt in car the members such as isolation guard rail is installed, the method that chaufeur is separated with the occupant, protected chaufeur.The employing acoustic-optic alarm emergency also had.The applicant once for safeguard procedures such as existing various sound and light alarms or isolation guard rails, existed without practical effect; the security of the lives and property to the chaufeur of starting a work shift can not get the real problems such as protection; successively design " the towed antihijacking device of car " that " car antihijacking device " that application publication number is CN102862542A and application publication number are CN103129503A, the latter is improved on the former architecture basics.The former assembly of drive gear is to consist of motor and the drive screw with driving nut and transmission gear that drives with the reductor of output gear.Under the driving of the output gear be meshed and transmission gear, the drive driving nut moves along the axis direction of drive screw, making driving nut drive upper and lower main support rod stretches, by the lifting of upper beam assembly, make the backrest of seat cushion and seat form slanted angle, can the backrest that rides in seat and be seesaw type obliquely upward the attack personnel between the slanted angle of the seat cushion of lifting clamp uniform.Assembly of drive gear complicated structure due to above-mentioned " car antihijacking device ", driving efficiency is lower, particularly when it recovers virgin state, it is not too convenient to operate, so in " the towed antihijacking device of car ", assembly of drive gear is improved, and the traction component that adopts sleeve pipe, slide block, transmission rope and driven wheel to form in assembly of drive gear, substituted the drive screw with driving nut and transmission gear with the reductor driving of output gear.It adopts motor to drive driving wheel to rotate Traction Drive rope band movable slider and moves along the sleeve pipe guide chute, upper and lower main support rod is stretched, driving the lifting of upper beam assembly makes the backrest of seat cushion and seat form slanted angle, meanwhile drive the secondary strut bar hinged with entablatrance and move along the slideway of underbeam assembly, until fixed pedestal upper beam assembly.It has solved the complex structure of the assembly of drive gear existence of " car antihijacking device ", and driving efficiency is low, the problems such as inconvenient operation.Although its structure obtains rational modification, operate more convenient, protection is quick, reliable, can effectively restrict attack personnel in car, but, because the upper and lower main support rod of its assembly of drive gear adopts the middle single-drive mechanism arranged, must rely on the fixedly upper beam assembly of lifting of secondary strut bar.In addition, if in car, the attack personnel, when the main support rod lifting, are positioned at an end of upper beam assembly, will produce unbalance loading so, will cause the upper beam assembly unbalance, cause the lifting shakiness.Also can be malfunctioning to the restriction that attacks personnel in car when serious, can't effectively protect chaufeur, can cause potential safety hazard.Therefore, existing antihijacking device must carry out Improvement and perfection again.

The utility model content

The purpose of this utility model is to provide the towed antihijacking device of a kind of car, solved the easy generation unbalance loading that existing transmission device exists, make the upper beam assembly unbalance, cause the lifting shakiness, can be to problems such as the restriction that attacks personnel in car are malfunctioning, its member stress distributes rationally, take full advantage of the finite space of seat bottom in car, lifting is light, flexible, steady, uses more safe and reliable, further improve the anti-performance of kidnapping, effectively protect chaufeur and attacked by the occupant.

The technical scheme that the utility model adopts is: this car comprises upper and lower beam assembly and the assembly of drive gear that is assembled in seat bottom in car with towed antihijacking device, the entablatrance of upper beam assembly is fixed on the seat cushion bottom of seat, the entablatrance below arranges the locating dowel pin that recovers initial position, the cross sill of underbeam assembly is fixed on chassis, and its technical essential is: described assembly of drive gear adopts two groups of transmission devices that are arranged symmetrically with; Every group of transmission device comprises the motor be fixed on removable bottom, pawl base, the ratchet of Moveable assembled in pawl base, and the traction component be comprised of sleeve pipe, slide block, transmission rope and driven wheel; Sleeve pipe in each traction component utilizes casing rack to be fixed on removable bottom, along the axially movable slide block of sleeve pipe guide chute by upper support bar and lower support bar with together with upper and lower crossbeam is hinged, driving wheel is fixed on motor shaft, transmission rope one end is wrapped on driving wheel, through the flower wheel guiding, the other end is fixed in the centre hole of slide block; The motor of every group of transmission device drives respectively driving wheel rotation Traction Drive rope band movable slider separately to move along the sleeve pipe guide chute, make to be symmetrically distributed in two upper support bars and two lower support bar synchronous extension of upper and lower beam assembly, drive upper beam assembly balance lifting, make the backrest of seat cushion and seat form slanted angle.

Advantage and the good effect that the utlity model has are: because assembly of drive gear of the present utility model adopts two groups of transmission devices that are arranged symmetrically with, every group of transmission device is on the applicant's's " towed antihijacking device of car " (application publication number is CN103129503A) architecture basics, retained in former assembly of drive gear " by sleeve pipe, slide block, transmission rope and master, the traction component that flower wheel forms " the form of basic transmission device, only former heavy-duty motor is changed into to two low-power machines that are no more than former power total value, cancelled the former secondary strut bar hinged with entablatrance, also cancelled the slideway with the support molar of the fixed pedestal upper beam assembly be fixed on cross sill simultaneously, the transmission device driven by two groups of low-power machines that are arranged symmetrically with substitutes, so its member stress distributes rationally, also be easy to realize, reach lifting light, flexibly, steadily, use more safe and reliable, further improve anti-purpose of kidnapping performance.

But in new departure, not singly by the transmission device of a centralized driving, be divided into two transmission devices that drive, but in the situation that former assembly of drive gear exists the malfunctioning potential safety hazard of restriction to be improved, and cancel complex structure, the former secondary strut bar that makes trouble.Why modify, be not only because of former secondary strut bar and with the slideway processing difficulties that supports molar, prior reason is: the single transmission device that the former upper and lower main support rod arranged by centre forms, must rely on the secondary strut bar hinged with the entablatrance both sides to move along the slideway of underbeam assembly, the ability balance is the upper beam assembly of lifting fixedly.And single transmission device easily makes the seat unbalance loading, cause restricting malfunctioning, be the security hidden trouble that the utility model must solve; The propulsion source of single driver train relies on a larger motor of power to drive, and the volume of this heavy-duty motor is large, and cost is high, causes the volume of former transmission device integral body to increase; The limited space of Yin Chenei seat bottom, thus increased the installation of former transmission device and use after the difficulty that resets.Utilization is no more than the transmission device be arranged symmetrically with of two low-power machines drivings of former power total value, not only motor assembly originally can not increase, and because the oad of low-power machine reduces, the size of corresponding drive disk assembly changes, can significantly dwindle the volume of transmission device, so the support of former major and minor strut bar is united two into one, can reduce difficulty of processing, can take full advantage of again the relatively limited space of seat bottom in car.When driving respectively driving wheel separately to rotate Traction Drive rope band movable slider, moves along the sleeve pipe guide chute by the motor of every group of transmission device, make to be symmetrically distributed in two upper support bars and two lower support bar synchronous extension of upper and lower beam assembly, drive upper beam assembly balance lifting, make the backrest of seat cushion and seat form slanted angle, can make to ride in the backrest of seat and be seesaw type attack personnel in the car between the slanted angle of the seat cushion of lifting obliquely upward, stably sink into wherein rapidly, effectively protect chaufeur and attacked by the occupant.

Therefore, the utility model has solved the easy generation unbalance loading that existing transmission device exists, and makes the upper beam assembly unbalance, causes the lifting shakiness, can be to problems such as the restriction that attacks personnel in car are malfunctioning.

The accompanying drawing explanation

Below in conjunction with accompanying drawing, the utility model is further described.

Fig. 1 is structural representation of the present utility model;

Fig. 2 is the birds-eye view of Fig. 1;

Fig. 3 is the cutaway view of Fig. 2 along the A-A line;

Fig. 4 is a kind of structural representation of the entablatrance assembly in Fig. 1;

Fig. 5 is a kind of structural representation of the cross sill assembly in Fig. 1.

Sequence number explanation in figure: 1 entablatrance assembly, 2 cross sill assemblies, 3 traction components, 4 locating dowel pins, 5 driving wheels, 6 motors, 7 pitmans, 8 upper support bars, 9 flower wheels, 10 transmission ropes, 11 lower support bars, 12 slide blocks, 13 base plates, 14 pawl bases, 15 ratchets, 16 sleeve pipes.

The specific embodiment

Describe concrete structure of the present utility model in detail according to Fig. 1～5.This car comprises the parts such as the upper and lower beam assembly 1,2 of the seat (not shown) bottom be assembled in car and assembly of drive gear with towed antihijacking device.Wherein assembly of drive gear adopts two groups of transmission devices that are arranged symmetrically with.The basic structure that has retained " traction component formed by sleeve pipe 16, slide block 12, transmission rope 10, driving wheel 6 and flower wheel 9 " in the former transmission device of " the towed antihijacking device of car " (application publication number is CN103129503A).In the present embodiment, former high-performance motor is changed into to two low-power machines that are arranged symmetrically with 5 that are no more than former power total value, as the power resources of driving system.And directly connect with driving wheel 6 by motor shaft (castellated shaft).Because the relative heavy-duty motor of oad of low-power machine 5 is little, the size of corresponding drive disk assembly changes, can significantly dwindle the volume of the integral body of transmission device, so the support of former major and minor strut bar is united two into one, difficulty of processing can be reduced, the relatively limited space of seat bottom in car can be taken full advantage of again.Upper beam assembly 1 comprise entablatrance and be arranged on entablatrance can hinged upper and lower strut bar 8,11 the parts such as permanent seat.Entablatrance is fixed on the bottom of the seat cushion of seat, and the entablatrance below is provided with the locating dowel pin 4 that can recover initial position, so that entablatrance can successfully turn back to the position before moving after lifting.Underbeam assembly 2 comprises cross sill, be arranged on cross sill can hinged upper and lower strut bar 8,11 and the parts such as permanent seat of pitman 7.The cross sill of underbeam assembly 2 is fixed on the chassis (not shown).

Every group of transmission device comprises the motor 5 be fixed on removable bottom 13, pawl base 14, the ratchet 15 of Moveable assembled in pawl base 14, and the parts such as traction component 3 that are comprised of sleeve pipe 16, slide block 12, transmission rope 10, driving wheel 6 and flower wheel 9.Wherein removable bottom 13 utilizes pitman 7 to be hinged on cross sill.In traction component 3, with Moveable assembled, the check ratchet 15 in pawl base 14 is meshed the ratchet of driving wheel 6.Move along sleeve pipe 16 guide chutes when driving wheel 6 rotates Traction Drive rope 10 band movable sliders 12, while making upper and lower strut bar 8,11 extend to the end position outage, stop because human body weight causes driving wheel 6 and reverse.Sleeve pipe 16 utilizes the forward and backward support of sleeve pipe to be fixed on removable bottom 13, along the axially movable slide block 12 of sleeve pipe 16 guide chute by upper and lower strut bar 8,11 with together with upper and lower crossbeam is hinged.Driving wheel 6 is fixed on motor 5 axles, and the other end of motor 5 axles is by initiatively the wheel carrier support is fixing.Transmission rope 10 1 ends are wrapped on driving wheel 6, through flower wheel 9 guiding, the other end is fixed in the centre hole of slide block 12, motor 5 drives driving wheel 6 to rotate Traction Drive rope 10 band movable sliders 12 and moves along sleeve pipe 16 guide chutes, the line of centers that makes upper and lower strut bar 8,11 extend to two bars is located along the same line, and two strut bars extend to end position.Drive 1 lifting of upper beam assembly, thereby make the seat cushion on it give rise to the highest position, and and the backrest of seat between form the slanted angle of similar " V " shape, make the ruffian be held uniform.

While resetting, the ratchet 15 Moveable assembled in pawl base 14 breaks away from the ratchet of driving wheel 6, and slide block 12 is moved to initial position along sleeve pipe 16 guide chutes, at this, makes upper and lower beam assembly 1,2 restore simultaneously.

Claims (1)

1. the towed antihijacking device of car, comprise the upper and lower beam assembly and the assembly of drive gear that are assembled in seat bottom in car, the entablatrance of upper beam assembly is fixed on the seat cushion bottom of seat, the entablatrance below arranges the locating dowel pin that recovers initial position, the cross sill of underbeam assembly is fixed on chassis, it is characterized in that: described assembly of drive gear adopts two groups of transmission devices that are arranged symmetrically with; Every group of transmission device comprises the motor be fixed on removable bottom, pawl base, the ratchet of Moveable assembled in pawl base, and the traction component be comprised of sleeve pipe, slide block, transmission rope and driven wheel; Sleeve pipe in each traction component utilizes casing rack to be fixed on removable bottom, along the axially movable slide block of sleeve pipe guide chute by upper support bar and lower support bar with together with upper and lower crossbeam is hinged, driving wheel is fixed on motor shaft, transmission rope one end is wrapped on driving wheel, through the flower wheel guiding, the other end is fixed in the centre hole of slide block; The motor of every group of transmission device drives respectively driving wheel rotation Traction Drive rope band movable slider separately to move along the sleeve pipe guide chute, make to be symmetrically distributed in two upper support bars and two lower support bar synchronous extension of upper and lower beam assembly, drive upper beam assembly balance lifting, make the backrest of seat cushion and seat form slanted angle.

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