CN2721428Y

CN2721428Y - Safety device of vehicle tyre

Info

Publication number: CN2721428Y
Application number: CN 200420087907
Authority: CN
Inventors: 叶俊杰
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-08-10
Filing date: 2004-08-10
Publication date: 2005-08-31
Anticipated expiration: 2014-08-10
Also published as: WO2006015523A1

Abstract

The utility model discloses a safety device of an automobile tyre. The inner side of an inner ring is matched with the shape of the installation position of an automobile wheel hub. An outer ring is sheathed on the outer margin of the inner ring, and the cross section thereof forms an H shape. The outer ring is divided into two sections along a radial direction. A guiding groove and a rail are arranged between the inner and the outer rings. A bolt and a nut are arranged in a groove which is arranged at the ring connecting point of the outer ring, and the outer ring is formed into an integral circle with the bolt and the nut. The shape of the periphery surface of the nut is formed into a worm wheel gear. A worm and the worm wheel gear are arranged in a worm and worm wheel box body. Both ends of the worm are formed into hexagonal surfaces and extend out of the worm and worm wheel box body which is positioned in the groove on the outer ring. The size of the worm and worm wheel box body is matched with the groove on the outer ring. The safety device adopted the utility model can cause a travelling automobile to move on road surface without tyre grind when the tyre burst suddenly occurs, because the differential speed of the relative rotation of the inner and the outer rings in a tyre burst wheel is acted on the tyre burst wheel, which enhances the controllability of security of service.

Description

Automobile tire safety device

Technical field

The utility model relates to a kind of wheel of being made by high strength material in the tubeless tires that is installed in, particularly a kind of dangerous automobile tire safety device of driving that takes place when avoiding tyre break.

Background technology

At present, automobile tire safety device is installed on the hub axis load-bearing position, ring and outer shroud in comprising.Interior ring is single radial cut, and the locational outer rim shape of its inside face and hub axis load-bearing matches.Outer shroud is made of two semicircular ring, and the outer rim of ring in being enclosed within on the surface of inner and outer rings contact, is provided with the guide groove and the rail of a pair of restriction inner and outer rings generation longitudinal travel.Connect into full circle by bolt, nut between two semicircular ring of formation outer shroud, form suitable the cooperation with interior ring, when guaranteeing automobile normal running, this device can solid and reliable ground chuck on wheel hub, when automobile causes the radius of rotation of left and right wheels when inconsistent in that one-sided tyre explosion accident takes place, outer shroud lands, and it is poor to relatively rotate to remedy girth between the inner and outer rings.Prevent that the safety device of blowing out is equivalent on the wheel hub in tubeless tires wheel is installed, make the effect of playing attached tire when blowing out suddenly in the driving process, prevent and reduce adjust travel in the direction of traffic sideslip, avoid having an accident, and guarantee that vehicle can continue the stretch journey of travelling, highway section out of danger.The applicant has has also manufactured and designed a kind of automobile tire safety device for this reason, and has applied for Chinese patent (patent No. is ZL02286169.6).But this technical scheme in use finds still to exist some defectives, the fastening structure that safety device is fixed on the wheel hub is reasonable inadequately, it is more complicated to make safety device install, and prevents from the nut that outer shroud is tightened to full circle returned pine and the problem that causes safety device to get loose is still treated further perfect.

Summary of the invention

The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, provides a kind of and prevents that automobile tire safety device from getting loose and automobile tire safety device easy for installation.

The technical solution adopted in the utility model is: a kind of automobile tire safety device, the inboard profile with the automotive hub installation site of interior ring adapts, on the outer rim of encircling in described outer shroud is enclosed within, and the outer shroud transversal surface is an I shape, outer shroud radially is divided at least two sections, in, be provided with the guide groove that is used for axial location and the rail that match between the outer shroud, the annulus of described outer shroud is by bolt, nut connects into full circle, bolt and nut are arranged in the groove of annulus junction of outer shroud, the outer peripheral face shape of described nut is set to worm-gear toothing, described worm screw is matched with described worm-gear toothing, described worm-gear toothing and worm screw are positioned at the worm and wormwheel casing, described worm screw both ends diameter is greater than the worm screw diameter, and this position is processed into hex surface, stretch out outside the worm and wormwheel casing at described worm screw two ends, and described worm and wormwheel casing is positioned at the described groove on the outer shroud, and the size of worm screw casing and the groove on the outer shroud are complementary.

Further, described outer shroud is made up of two semicircular ring.

Adopt the technical solution of the utility model, rotary worm, worm-gear toothing also rotate immediately, with the pine that reaches safety device with tight, and owing to worm-gear toothing, worm geared self-locking performance, the clamp nut that has solved safety device effectively returns pine, causes the problem that gets loose.

Description of drawings

Fig. 1 is the fragmentary sectional elevation view of automobile tire safety device of the present utility model;

Fig. 2 is the longitudinal sectional view of Fig. 1;

Fig. 3 is the enlarged drawing of the I part of Fig. 2;

Fig. 4 is the enlarged drawing of the A part among Fig. 1;

Fig. 5 is the view of the B-B direction of Fig. 4.

The specific embodiment

The utility model is described in further detail below in conjunction with accompanying drawing and specific embodiment.

To shown in Figure 5, automobile tire safety device of the present utility model adopts the modified engineered plastic manufacturing, has excellent mechanical properties as Fig. 1, is made of the outer shroud 1 that is installed in the locational interior ring 2 of wheel hub 6 outer rim axis load-bearing, be enclosed within on interior ring 2 outer rims.Outer rim at interior ring 2 is made a projection along circumference, is guided way 8, does one at the inside face upper edge of outer shroud 1 circumference and is recessed into, be guide groove 9, groove and rail shape of cross section are oblong, and rail is bumped in the groove and matches, longitudinal travel and sideslip between the restriction inner and outer rings.The inside face of interior ring 2 and the outer rim shape of wheel hub 6 installation sites match, in ring be full circle but single radial cut, outer shroud 1 is made of two semicircular ring 1.1 and 1.2 that are divided into, and semicircular ring 1.1 and 1.2 is tightened to a full circle by bolt 3 and nut 4, forms suitable the cooperation with interior ring.When making it guarantee automobile normal running on the one hand, this device can solid and reliable ground chuck on wheel hub outer rim axis load-bearing position, make automobile cause the radius of rotation of left and right wheels meeting accident the accident of blowing out when inconsistent on the other hand, outer shroud lands, and it is poor to relatively rotate to remedy girth between the interior ring.The transversal surface of outer shroud and be I-shape, the height of its I-shape construction, can guarantee that automobile inflates in tire standards, outer shroud and the ground safety distance of leaving a blank does not touch at the end during cruising, outer shroud lands immediately in the time of guaranteeing again that automobile is blown out suddenly, the change in radius amount was little before and after wheel was blown out, that is the vehicle body of the side of blowing out sinks, can continue along the straight line safety traffic not within the manipulation request of sideslip at automobile, the outer contacting surface of the inside face of outer shroud 1 or interior ring 2 is provided with a U type groove 5, be filled with grease in the groove, after blowing out, outer shroud 1 contacts the effect that replaces tire 7 with ground, the friction that can rotate between the inner and outer ring is generated heat, and temperature sharply raises, and causes wearing and tearing even damage.At this moment, grease plays lubricating effect, and friction generates heat to reduce rotation.

Nut 4 is that an endoporus is the worm-gear toothing of screw thread, matches with it and has worm screw 4.1 and worm and wormwheel casing 4.2.Semicircular ring 1.1 and 1.2 is tightened to full circle by bolt 3 and nut 4.The bolt cap of bolt 3 has microscler circular hole, inserts one of them outer shroud semicircular ring and does not hold in the oblong cell body, can not rotate by horizontal insertion bearing pin 10 location anti-avulsions.The thread segment of bolt 3 inserts in the circular hole that another outer shroud semicircular ring do not hold, and circular hole traverses with the square hole that has near the semicircular ring end position and communicates, and pack into worm-gear toothing and bolt of square hole matches.The worm screw two ends are six-sided head, and it is outer and vertical with the outer shroud end face to be positioned at the worm and wormwheel casing, makes things convenient for the dismounting of safety device.The square hole shape that worm and wormwheel box shape and outer shroud semicircular ring are not held is complementary, and the worm and wormwheel casing can not rotate.The drive characteristic worm screw that utilizes worm and wormwheel is to the worm drive self-locking.Rotary worm, worm-gear toothing could rotate, and the pine of realizing bolt is with tight, and nut is fastening not to return pine.

Adopt automobile tire safety device of the present utility model, the interconnection technique of safety device is reliable, and is easy to loading and unloading, is difficult for getting loose.Can make automobile in travelling after blowing out suddenly, since this blow out the wheel in above-mentioned inner and outer ring between relatively rotating played differential action and this wheel of blowing out, still can on the road surface, roll and not grind tire, the initiation traffic accident of toppling out of control of the unexpected sideslip of automobile steering in preventing to run at high speed, strengthened the manipulative capability of safety traffic, and satisfy vehicle and continue certain mileage that travels, sail out of dangerous on-the-spot requirement.

It should be noted that at last: above embodiment only in order to the explanation the present invention and and unrestricted technical scheme described in the invention.Therefore, although this specification sheets has been described in detail the present invention with reference to the above embodiments, but, those of ordinary skill in the art is to be understood that, still can make amendment or be equal to replacement the present invention, for example: worm-gear toothing also can manufacture helical teeth nut etc., and all do not break away from the technical scheme and the improvement thereof of spirit and scope of the present utility model, and it all should be encompassed in the middle of the claim scope of the present utility model.

Claims

1. automobile tire safety device, include interior ring, outer shroud, the inboard profile with the automotive hub installation site of interior ring adapts, on the outer rim of encircling in described outer shroud is enclosed within, and the outer shroud transversal surface is an I shape, outer shroud radially is divided at least two sections, it is characterized in that: in, be provided with the guide groove that is used for axial location and the rail that match between the outer shroud, the annulus of described outer shroud is by bolt, nut connects into full circle, bolt and nut are arranged in the groove of annulus junction of outer shroud, the outer peripheral face shape of described nut is set to worm-gear toothing, described worm screw is matched with described worm-gear toothing, described worm-gear toothing and worm screw are positioned at the worm and wormwheel casing, described worm screw both ends diameter is greater than the worm screw diameter, and hex surface is processed at this position, and stretch out outside the worm and wormwheel casing at described worm screw two ends, described worm and wormwheel casing is positioned at the described groove on the outer shroud, and the size of worm screw casing and the groove on the outer shroud are complementary.

2. automobile tire safety device according to claim 1 is characterized in that: described outer shroud is made up of two semicircular ring.

3. automobile tire safety device according to claim 1 and 2 is characterized in that: the inboard of described outer shroud is provided with at least one U type groove, is filled with lubricating fluid in the U type groove.

4. automobile tire safety device according to claim 1 and 2 is characterized in that: described guide groove and rail are set to two row.