CN201580367U

CN201580367U - Expansion self- rescue device for expansion wheel of motor vehicle

Info

Publication number: CN201580367U
Application number: CN2009202809049U
Authority: CN
Inventors: 刘振臣; 彭辉; 郑元振; 李法设; 李延辉
Original assignee: Qingdao University
Current assignee: Qingdao University
Priority date: 2009-12-09
Filing date: 2009-12-09
Publication date: 2010-09-15
Anticipated expiration: 2019-12-09

Abstract

The utility model belongs to the technical filed of self-rescue of motor vehicles, and relates to a device which can conduct self-rescue when a motor vehicle is stuck in sand, in particular to an expansion self-rescue device for an expansion wheel of the motor vehicle, which can utilize the idling of a drive wheel of the motor vehicle and the screw transmission to enable an additional wheel to expand. The main body of the device comprises an automatic chuck, a transmission screw and an additional expansion wheel unit, wherein the automatic chuck is used for connecting the self-rescue device and an automobile and supplying power, and can realize automatic clamping or loosening through a plurality of sets of crank-swing block mechanisms; and the transmission screw is used for transmitting power of the automobile wheels and enabling the additional expansion wheel to expand, then the additional expansion wheel can conduct expansion and jacking and finally the automobile is shifted out of sand. The device has the advantages of novel structural design, flexible installation and use, high safety and reliability and good self-rescue effect, can be widely used and carried about for various motor vehicles, and can realize self-rescue.

Description

Self-propelled vehicle expansion wheel expansion self-help apparatus

Technical field:

The utility model belongs to the self-propelled vehicle holder and rescues technical field, relate to the apparatus that to implement to save oneself when a kind of self-propelled vehicle is sticked by silt, particularly a kind of driving wheel idle running that utilizes self-propelled vehicle makes the self-propelled vehicle expansion self-help apparatus that adds the wheel expansion by lead screw transmission.

Background technology:

In the actual life self-propelled vehicle particularly the automobile driving wheel be absorbed in the time of can not leaving in the silt, traditional method is to utilize trailer, manpower etc. by the mode that adds the application of force they to be hauled out, there is big dependence in the method environment to external world, so limitation is bigger.Along with the development of society, the method for " the car holding is lifted " this class heaviness is eliminated gradually, is used for self-propelled vehicle and is absorbed in the also just constantly appearance of the instrument of saving oneself that silt is got rid of poverty.Can be divided into two kinds from the power resources aspect in the existing automobile self-rescue unit: a kind of is to need not additionaling power to make automobile break away from mire by automobile self power, and another kind is to make automobile realize saving oneself by additionaling power; Wherein the self-help apparatus by self wheel power roughly can be divided into two kinds again, and a kind of is capstan winch formula self-help apparatus, and another kind is the save oneself pad or the band of saving oneself; Capstan winch formula self-help apparatus is to be connected with automobile power by capstan winch, and the fixed end that is connected is simultaneously hauled out car, specifically by increasing the capstan winch of a gear structure onboard, and arrangement of steel wires rope, can reliably connect the automobile power part when needed, thereby can tighten up steel rope by capstan winch when running into accident like this goes out of difficult position automobile is dilatory, this Design of device itself exists a fatal shortcoming, must rely on a solid failure-free fixed end exactly automobile is extricated oneself from a plight, therefore the condition dependence is excessive equally to external world; Save oneself pad, the band of saving oneself plays the wheel pad and realizes saving oneself by play object at the wheel underlay, self-propelled vehicle is saved oneself pad by liner, and long spiro nail and steel plate are formed, and relies on automobile self power to realize saving oneself, need not spread the face of repairing the roads must other external force yet, only depends on the strength of self to extricate oneself from a predicament; This device is equivalent to spread a bit of pitchy road at the place that subsides of self-propelled vehicle, thereby realize saving oneself, its weak point is can not well be fixed the pad of saving oneself at wheel by the marshy area borough chief screw that falls into, and the time spent pad that needs to save oneself places the front lower place or the back lower place of tire, start a car can not guarantee that the friction force that provides enough is extricated oneself from a plight automobile then.Another kind of is to make automobile realize the device of saving oneself by additionaling power, and this type of device mainly supports car by hydraulic pressure, machinery, and is more loaded down with trivial details during use, and hydraulic actuator manufacturing cost height, complex structure are so be difficult for promoting and using.

Summary of the invention:

Goal of the invention of the present utility model is to overcome and has the shortcoming that the self-propelled vehicle self-help apparatus exists now, seeks to utilize the idle running of automobile driving wheel after design provides a kind of automobile to be absorbed in mire, makes the mode that adds the wheel expansion realize the device of saving oneself by lead screw transmission.

To achieve these goals, main body composition structure of the present utility model comprises universal chuck, turn-screw and adds the expansion wheel unit; Universal chuck is used for self-help apparatus being connected with automobile and providing power, realize chucking or loosening automatically by many covers crank cranking block mechanism, turn-screw is used for geared wheel power, impel and add the expansion wheel expansion, realize expansion jack-up by adding expansion wheel then, and automobile is migrated out by sunken silt ground; The structure of the universal chuck identical with the rim size of wheel for motor vehicle is a circular metal plate, and the circle centre position of universal chuck bores empty and is connected with turn-screw; Rectangular distribution is shaped on a plurality of claws on universal chuck, and each claw is buckled pawl, is used for overhanging push rod and forms for push rod provides the cylinder of track by being used to be buckled in door type on the automobile spoke; The door type buckles pawl, push rod and cylinder constitutes crank rocker mechanism, and a door type is buckled pawl and cylinder pin joint on universal chuck, and push rod passes cylinder and buckles pawl pin with the door type and is connected together; Rectangular distribution is shaped on four ratchet bars on the circumference at the close center of the another side of universal chuck, realization stay bearing plate and door type are buckled the locking of pawl, it is shaped on five thrust balls away from rectangular distribution on the circumference in the center of circle, realize the friction of rolling between universal chuck and the stay bearing plate, reduce between the two frictional loss and noise; The screw thread of turn-screw is a square thread, and the screw thread at turn-screw two ends is fallen a part by turning, is connected with other parts with convenient, also is rotary with the nut that moves ahead on the turn-screw, and the reach by the nut that moves ahead is promoting the overhanging of floor; Add the expansion wheel unit and be made up of stay bearing plate and floor, stay bearing plate is the circular metal plate that an area is similar to automobile tyre, and circle centre position is shaped on a circular hole that is used to connect turn-screw; Radially distributing uniformly on the surface of stay bearing plate is shaped on eight slideways, and the overhanging track that provides on floor is provided; The floor and be welded by metal sheet and a rectangular metal plate of a circular arc, rectangular plate inserts in the slideway of stay bearing plate, and the metal sheet of kiss the earth is the impact of circular arc when adding the expansion wheel unit rotational with minimizing.

The utility model is assembled by each member principle interconnection system, and wherein an end of turn-screw is connected with stay bearing plate with universal chuck successively, and universal chuck is connected by key with turn-screw, to realize synchronous rotation; Stay bearing plate is connected by bearing with turn-screw, and the nut that moves ahead on the turn-screw is connected with the floor with the strut bar of its pin joint by one, thereby and is promoting the overhanging framework of forming whole self-help apparatus in floor by this strut bar.

The utility model has also designed footing and stroke lock portion, footing is made up of four stroke guide rails, four stroke guide rails pass that an end and stay bearing plate are connected behind the nut that moves ahead, the other end is connected with turn-screw by a disk, the assurance nut that moves ahead is only done motion of translation, and anti-locking apparatus reverses and self-locking; The stroke lock portion is made up of the stroke braking pin of cutting somebody's hair and being supported on the stay bearing plate that is welded on the nut that moves ahead, when the current line nut advances to certain position, cut somebody's hair and promote stroke braking pin, the latter is installed on the ratchet bar on the universal chuck by buckle-type, stop the nut that moves ahead to move on, play latch functions.

The utility model is compared with prior-art devices, and its structure design novelty is installed and used flexibly, and safe reliability is strong, and it is effective to save oneself, and can be widely used in all kinds of self-propelled vehiclees and use with oneself, realizes saving oneself.

Description of drawings:

Fig. 1 is the utility model integral structure principle schematic.

Fig. 2 adds expansion wheel Facad structure principle schematic for the utility model.

Fig. 3 is the utility model universal chuck cross-section structure principle schematic.

The specific embodiment:

Also be described further in conjunction with the accompanying drawings below by embodiment.

The integrally-built composition of present embodiment comprises universal chuck 1, stay bearing plate 2, floor 3, strut 4, the nut 5 that moves ahead, turn-screw 6, cut somebody's hair 7, stroke guide rail 8, stroke braking pin 9, thrust ball 10, slideway 11, a door type buckle pawl 12, push rod 13, cylinder 14 and ratchet bar 15; The structure of universal chuck 1 is a circular metal plate, and is identical with the rim size of wheel, and the circle centre position of universal chuck 1 bores empty and is connected with turn-screw 6; A plurality of claws that distributing uniformly on universal chuck 1, each claw are buckled pawl 12, one by a door type that is used to be buckled on the automobile spoke and are used for overhanging push rod 13 and one and form for push rod 13 provides the cylinder 14 of track; The door type buckles pawl 12, push rod 13 and cylinder 14 constitutes crank rocker mechanisms, and a door type is buckled pawl 12 and cylinder 14 pin joints on universal chuck 1, and push rod 13 passes cylinder 14 and buckles pawl 12 pin joints together with the door type; On the another side of universal chuck 1, be uniform-distribution with four ratchet bars 15 near on the circumference at center, realize the latch functions that stay bearing plate 2 and door type are buckled pawl 12; On circumference, be uniform-distribution with five thrust balls 10, realize that between universal chuck 1 and the stay bearing plate 2 be friction of rolling, reduce between the two frictional loss and noise away from the center of circle; The screw thread of turn-screw 6 is a square thread, have higher driving efficiency, the screw thread at turn-screw 6 two ends is fallen a part by turning, is connected with other parts with convenient, also be rotary with the nut 5 that moves ahead on the turn-screw 6, the reach by the nut 5 that moves ahead is promoting the overhanging of floor; Add the expansion wheel unit and be made up of stay bearing plate 2 and floor 3, stay bearing plate 2 is circular metal plates that an area is similar to automobile tyre, and circle centre position is shaped on a circular hole that is used to connect turn-screw 6; The overhanging track that provides on floor 3 is provided for eight slideways 11 that radially distributing uniformly on the surface of stay bearing plate 2; Floor 3 and be welded by metal sheet and a rectangular metal plate of a circular arc, rectangular plate inserts in the slideway 11 of stay bearing plate 2, and the metal sheet of kiss the earth is the impact of circular arc when adding the expansion wheel unit rotational with minimizing.

When self-propelled vehicle mired down in mud skid, the step of utilizing present embodiment to save oneself was: at first, rotate universal chuck 1 according to wheel size, floor 3 is contacted with ground to guarantee bigger friction; The door type is buckled pawl 12 be buckled on the automobile spoke, rotate universal chuck 1, make push rod 13 radially overhanging and withstand on the wheel rim, thereby realize the pretension of universal chuck 1 with hand; The driver gets back in the car and operates then, and the residue process will be finished automatically by this self-help apparatus; After push rod 13 holds out against rim, wheel is as a whole with 1 one-tenth of universal chuck, the wheel of idle running drives turn-screw 6 by card universal chuck 1 and rotates, thereby making the nut 5 that moves ahead follow journey guide rail 8 travels forward, further make strut 4 outer supports, it is overhanging along slideway 11 to drive floor 3 simultaneously, realizes that expansion wheel expands; After current line nut 5 drives to assigned address, thereby Stroke Control pin 7 blocks the locking that ratchet bar 15 is realized stay bearing plate 2 and universal chuck 1, at this moment, wheel and turn-screw 6 stop to relatively rotate, expansion wheel stops to expand, realize the synchronous rotation of wheel and expansion wheel, but self-propelled vehicle just pulsation-free roll mire away from; After motor line sails to better road surface, self-help apparatus easily can be unloaded by reversing.

Claims

1. self-propelled vehicle expansion wheel expansion self-help apparatus, main body is formed structure and is comprised universal chuck, turn-screw and add the expansion wheel unit, it is characterized in that the universal chuck structure identical with wheel for motor vehicle rim size is a circular metal plate, the circle centre position of universal chuck bores empty and is connected with turn-screw, rectangular distribution is shaped on a plurality of claws on the universal chuck, and each claw is buckled pawl, is used for overhanging push rod and forms for push rod provides the cylinder of track by being used to be buckled in door type on the automobile spoke; The door type is buckled pawl and cylinder pin joint on universal chuck, and push rod passes cylinder and buckles pawl pin with the door type and is connected together; The another side of universal chuck is shaped on four ratchet bars near rectangular distribution on the center circumferential, and stay bearing plate is buckled the pawl locking with the door type, and it is shaped on five thrust balls, friction of rolling between universal chuck and the stay bearing plate away from rectangular distribution on the circumference in the center of circle; The screw thread of turn-screw is a rectangle, and the screw thread at turn-screw two ends is fallen a part by turning, also is rotary with the nut that moves ahead on the turn-screw, and the nut that moves ahead reach is promoting the overhanging of floor; Add the expansion wheel unit and be made up of stay bearing plate and floor, stay bearing plate is a circular metal plate, and circle centre position is shaped on a circular hole that is used to connect turn-screw; On the stay bearing plate surface radially rectangular distribution be shaped on eight slideways; The floor and be welded by a circular arc metal sheet and a rectangular metal plate, rectangular plate inserts in the slideway of stay bearing plate, and the metal sheet of kiss the earth is a circular arc.

2. self-propelled vehicle expansion wheel expansion self-help apparatus according to claim 1, an end that it is characterized in that turn-screw is connected with stay bearing plate with universal chuck successively, universal chuck is connected by key with turn-screw and rotates synchronously, stay bearing plate is connected with the turn-screw bearing, and the nut that moves ahead on the turn-screw is connected with the floor with the strut bar of its pin joint by one.

3. self-propelled vehicle expansion wheel expansion self-help apparatus according to claim 1, it is characterized in that also having designed footing and stroke lock portion, footing is made up of four stroke guide rails, four stroke guide rails pass that an end and stay bearing plate are connected behind the nut that moves ahead, the other end is connected with turn-screw by a disk, the stroke lock portion is made up of the stroke braking pin of cutting somebody's hair and being supported on the stay bearing plate that is welded on the nut that moves ahead, and stroke banking pin subcard button is installed on the ratchet bar on the universal chuck.