阅读说明：本技术 一种可改善车辆行驶稳定性的安全轮胎内支撑装置 (Safety tire inner supporting device capable of improving vehicle running stability ) 是由 臧利国 王星宇 孙海燕 于 2020-07-16 设计创作，主要内容包括：本发明涉及一种可改善车辆行驶稳定性的安全轮胎内支撑装置,包括内支撑底座、用于零压或低压工况下支撑轮胎胎肩的支撑机构和若干用于缓冲、减震并限制支撑机构作横向移动的限位机构。内支撑底座为环形,套接固定在轮辋上。多个限位机构沿周向均匀地固定在内支撑底座上,并分别与支撑机构滑动配合。在轮胎低压或者零压工况下,本发明的安全轮胎内支撑装置通过支撑机构支撑轮胎胎肩,可增大胎面与地面接触面积,提高轮胎附着能力。通过限位机构,一方面减震,有效降低车辆在转弯时产生的冲击,提高轮胎附着性能,另一方面,有效减小轮辋和内支撑装置间的相互作用力,减小零压工况下的轮辋损伤。(The invention relates to a safe tire inner supporting device capable of improving the running stability of a vehicle, which comprises an inner supporting base, a supporting mechanism used for supporting the tire shoulder under the working condition of zero pressure or low pressure and a plurality of limiting mechanisms used for buffering and damping and limiting the supporting mechanism to move transversely. The inner support base is annular and is sleeved and fixed on the rim. And the limiting mechanisms are uniformly fixed on the inner support base along the circumferential direction and are respectively in sliding fit with the supporting mechanisms. Under the working condition of low pressure or zero pressure of the tire, the inner support device of the safety tire supports the tire shoulder through the support mechanism, so that the contact area of the tire surface and the ground can be increased, and the adhesion capability of the tire is improved. Through stop gear, the shock attenuation on the one hand effectively reduces the impact that the vehicle produced when turning, improves tire adhesion property, and on the other hand effectively reduces the interact power between rim and interior strutting arrangement, reduces the rim damage under the zero pressure operating mode.)

1. A safe tire inner supporting device capable of improving the running stability of a vehicle is characterized by comprising an inner supporting base (10), a supporting mechanism used for supporting a tire shoulder of a tire (B) under a zero-pressure or low-pressure working condition and a plurality of limiting mechanisms used for buffering and damping and limiting the supporting mechanism to move transversely; the inner support base (10) is annular and is sleeved and fixed on the rim (A); the limiting mechanisms are uniformly fixed on the inner support base (10) along the circumferential direction and are respectively in sliding fit with the supporting mechanisms.

2. The safety tire inner supporting device capable of improving the running stability of a vehicle is characterized in that the supporting mechanism comprises two semicircular inner supporting blocks (1) arranged around the inner supporting base (10), the front side and the rear side of each inner supporting block (1) are respectively provided with a semicircular groove, the section of each semicircular groove is rectangular, an arc-shaped body (5) with a matched shape is arranged in each semicircular groove, the section of each arc-shaped body (5) is semicircular, and the arc surface faces to the outer side; a plurality of first through holes which are communicated from front to back are uniformly formed in the two inner supporting blocks (1) along the circumferential direction, the first through holes are communicated with the corresponding semicircular grooves, the number of the first through holes is equal to that of the limiting mechanisms, and the first through holes are in one-to-one radial correspondence; a fixed spring (4) is arranged in the first through hole, and two ends of the fixed spring (4) are respectively welded with the two corresponding arc-shaped bodies (5); radial grooves staggered with the first through holes are formed in the positions, located on the outer circumferential surfaces of the two inner supporting blocks (1), of the first through holes, locking pins (2) are inserted into the radial grooves, the locking pins (2) protrude out of the radial grooves, snap rings (3) are fixedly connected onto the locking pins (2), connecting plates are integrally and vertically connected to two sides of the bottoms of the snap rings (3), the tail ends of the two connecting plates are bent along the sections of the semicircular grooves to form tail end baffles, the two tail end baffles are respectively inserted into two ends of corresponding fixing springs (4), and the fixing springs (4) are pre-compressed; a cavity for the snap ring (3) and the connecting plate to move in the radial direction is formed in the inner supporting block (1);

after the locking pin (2) is pressed down, the clamping ring (3) and the connecting plate move inwards, the two end baffles are separated from the corresponding fixed springs (4), and the fixed springs (4) push out the corresponding two arc-shaped bodies (5).

3. A safety inner support device for a tire for improving the running stability of a vehicle according to claim 2, wherein the radius of the arc-shaped body (5) is equal to the depth of the semicircular groove.

4. The safety tire inner supporting device for improving the driving stability of a vehicle according to claim 2, wherein the limiting mechanism comprises two limiting blocks (6) and a supporting rod (12), the two limiting blocks (6) are L-shaped and are respectively and vertically fixed on the front side and the rear side of the outer circumferential surface of the inner supporting base (10), and the short sections of the two limiting blocks (6) are opposite in end face; a return spring (11) is vertically fixed at a position between the two limiting blocks (6) on the outer circumferential surface of the inner support base (10), limiting springs (8) are vertically fixed on the inner side surfaces of the long sections of the two limiting blocks (6), and the two limiting springs (8) are opposite;

the inner sides of the two inner supporting blocks (1) are integrally provided with a convex block corresponding to the position of the limiting mechanism, the bottom of the convex block is provided with a T-shaped groove which is through from front to back, the top of the supporting rod (12) is provided with a T-shaped bulge matched with the T-shaped groove, and the supporting rod (12) is embedded and matched with the convex block in a sliding way; rectangular grooves are formed in two ends of the supporting rod (12), slidable spherical hinge supports are arranged in the two rectangular grooves, a limiting ball (7) is hinged in each spherical hinge support, a second through hole communicated with the two rectangular grooves is further formed in the supporting rod (12), a compression spring (13) is arranged in each second through hole, and two ends of each compression spring (13) are respectively connected with the two spherical hinge supports in a welding mode;

arc pits matched with the limiting balls (7) are formed in the short section end faces of the two limiting blocks (6), and the supporting rod (12) is supported between the short section end faces of the two limiting blocks (6) through compression springs (13) under the normal pressure working condition; under the working condition of zero pressure or low pressure, the supporting mechanism and the supporting rod (12) integrally move inwards, and the compression spring (13) is expanded, so that the two limiting balls (7) are respectively contacted with the two limiting springs (8); the return spring (11) supports the support rod (12).

5. A safety tyre inner supporting device for improving the running stability of the vehicle according to claim 4 is characterized in that a baffle plate for abutting against the limiting ball (7) under the zero pressure or low pressure working condition is welded and fixed at the opposite ends of the two limiting springs (8).

6. A safety tire inner support device for improving the running stability of a vehicle according to claim 4, wherein the diameter of the limit ball (7) is equal to that of the limit spring (8).

7. A safety tire inner support device for improving the running stability of a vehicle according to any one of claims 1 to 6, wherein the number of the stopper mechanism is six.

8. The inner support device for a safety tire capable of improving the driving stability of a vehicle according to claim 1, wherein the inner support base (10) is provided with a plurality of pin holes uniformly along the circumferential direction at the front and rear sides and is fixed on the rim (A) through fixing pins (9).

Technical Field

The invention belongs to the technical field of tires, and particularly relates to a safe tire inner supporting device capable of improving the running stability of a vehicle.

Background

The common pneumatic tire has the hidden danger of tire burst, and is easy to puncture when running on off-road roads, so that the running safety of vehicles is seriously influenced. The inner support type safety tire is developed on the basis of a common tire, the rim is additionally provided with the auxiliary support body, and the tire pressure monitoring device is further equipped, so that the safety is greatly improved, and the safety tire is mostly designed based on the common rim, so that the safety tire has the advantages of simple structure, convenience in disassembly, strong zero-pressure bearing capacity and the like.

As vehicle performance increases, higher demands are placed on the performance of inner support type run-flat tires. At present, the contact mode between the inner supporting device and the rim is mainly rigid contact, when a vehicle runs in a low-pressure or zero-pressure state, the displacement and abrasion generated by the inner supporting device and the rim are large, the adhesion performance of a tire is easily reduced, the lateral deflection rigidity is reduced, the lateral force is reduced, the operation stability of the vehicle is seriously influenced, the inner supporting device generates heat in long-distance running in the zero-pressure state, the damage to relevant parts such as the rim can be caused, and the potential safety hazard exists.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides the safe tire inner supporting device capable of improving the vehicle running stability, which can effectively solve the problem that the operation stability of the inner supporting safe tire is reduced when the safe tire runs under the working condition of low pressure or zero pressure, and improve the vehicle running safety.

The technical scheme adopted by the invention is as follows:

a safe tire inner supporting device capable of improving the running stability of a vehicle comprises an inner supporting base, a supporting mechanism used for supporting the tire shoulder under the zero-pressure or low-pressure working condition and a plurality of limiting mechanisms used for buffering and damping and limiting the supporting mechanism to move transversely; the inner support base is annular and is fixedly sleeved on a rim; and the limiting mechanisms are uniformly fixed on the inner support base along the circumferential direction and are respectively in sliding fit with the supporting mechanisms.

Furthermore, the supporting mechanism comprises two semicircular inner supporting blocks surrounding the inner supporting base, a semicircular groove is formed in the front side and the rear side of each inner supporting block, the section of each semicircular groove is rectangular, an arc-shaped body with a matched shape is arranged in each semicircular groove, the section of each arc-shaped body is semicircular, and the arc surface faces the outer side; a plurality of first through holes which are communicated with each other in the front-back direction are uniformly formed in the two inner supporting blocks along the circumferential direction, the first through holes are communicated with the corresponding two semicircular grooves, the number of the first through holes is equal to that of the limiting mechanisms, and the first through holes are in one-to-one radial correspondence; a fixed spring is arranged in the first through hole, and two ends of the fixed spring are respectively connected with the two corresponding arc-shaped bodies in a welding manner; radial grooves staggered with the first through holes are formed in the positions, located on the outer circumferential surfaces of the two inner support blocks, of the first through holes, locking pins are inserted into the radial grooves and protrude out of the radial grooves, snap rings are fixedly connected to the locking pins, connecting plates are vertically connected to two sides of the bottoms of the snap rings in a whole body mode, the tail ends of the two connecting plates are bent along the sections of the semicircular grooves to form tail end baffles, and the two tail end baffles are inserted into two ends of the corresponding fixing springs respectively and pre-compress the fixing springs; a cavity for the radial movement of the clamping ring and the connecting plate is formed in the inner supporting block;

after the locking pin is pressed down, the clamping ring and the connecting plate move inwards, the two end baffles are separated from the corresponding fixed springs, and the fixed springs push out the corresponding two arc-shaped bodies.

Further, the radius of the arc-shaped body is equal to the depth of the semicircular groove.

Furthermore, the limiting mechanism comprises two limiting blocks and a supporting rod, wherein the two limiting blocks are L-shaped and are respectively and vertically fixed on the front side and the rear side of the outer circumferential surface of the inner support base, and the short section end surfaces of the two limiting blocks are opposite; a return spring is vertically fixed at a position between the two limiting blocks on the outer circumferential surface of the inner support base, limiting springs are vertically fixed on the inner side surfaces of the long sections of the two limiting blocks, and the two limiting springs are right opposite;

the inner sides of the two inner support blocks are integrally provided with a convex block corresponding to the position of the limiting mechanism, the bottom of the convex block is provided with a T-shaped groove which is through from front to back, the top of the support rod is provided with a T-shaped bulge matched with the T-shaped groove, and the support rod is embedded and matched with the convex block in a sliding manner; rectangular grooves are formed in two ends of the supporting rod, slidable spherical hinge supports are arranged in the two rectangular grooves, limiting balls are hinged in the spherical hinge supports, second through holes communicated with the two rectangular grooves are further formed in the supporting rod, compression springs are arranged in the second through holes, and two ends of each compression spring are respectively connected with the two spherical hinge supports in a welding mode;

the end faces of the short sections of the two limiting blocks are respectively provided with an arc pit matched with the limiting ball, and the support rod is supported between the end faces of the short sections of the two limiting blocks through the compression spring under the normal pressure working condition; under the working condition of zero pressure or low pressure, the supporting mechanism and the supporting rod integrally move inwards, and the compression spring is expanded to enable the two limiting balls to be respectively contacted with the two limiting springs; the support rod is supported by the return spring.

Furthermore, the opposite ends of the two limiting springs are fixedly welded with a baffle which is used for abutting against the limiting ball under the working condition of zero pressure or low pressure.

Further, the diameter of the limiting ball is equal to that of the limiting spring.

Further, the number of the limiting mechanisms is six.

Furthermore, a plurality of pin holes are uniformly formed in the front side and the rear side of the inner support base along the circumferential direction, and the inner support base is fixed on a rim through fixing pins.

The invention has the beneficial effects that:

under the working condition of low pressure or zero pressure of the tire, the inner support device of the safety tire supports the tire shoulder through the support mechanism, so that the contact area of the tire surface and the ground can be increased, and the adhesion capability of the tire is improved. Through stop gear, the shock attenuation on the one hand effectively reduces the impact that the vehicle produced when turning, improves tire adhesion property, and on the other hand effectively reduces the interact power between rim and interior strutting arrangement, reduces the rim damage under the zero pressure operating mode.

Drawings

FIG. 1 is a schematic structural view of the inner support device of the present invention installed in a tire (normal pressure condition);

FIG. 2 is a cross-sectional view of the position of the spacing mechanism of FIG. 1;

FIG. 3 is a schematic view of the inner support device of the present invention installed in a tire (low or zero pressure condition);

FIG. 4 is a cross-sectional view of the position of the spacing mechanism of FIG. 3;

FIG. 5 is a schematic view of the fitting structure of the inner convex block of the inner support block and the support rod;

reference numerals: 1-inner supporting block, 2-locking pin, 3-snap ring, 4-fixed spring, 5-arc body, 6-limiting block, 7-limiting ball, 8-limiting spring, 9-fixed pin, 10-inner supporting base, 11-return spring, 12-supporting rod, 13-pressing spring, A-rim and B-tire.

Detailed Description

The safety tire inner support device of the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1 and 2, a safety tire inner supporting device for improving the driving stability of a vehicle comprises an inner supporting base 10, a supporting mechanism for supporting the shoulder of a tire B under zero-pressure or low-pressure working conditions, and a plurality of limiting mechanisms for buffering, damping and limiting the lateral movement of the supporting mechanism. The inner support base 10 is annular and is fixed on the rim a in a sleeved manner (a plurality of pin holes are uniformly formed in the front side and the rear side of the inner support base 10 along the circumferential direction and are fixed on the rim a through fixing pins 9, see fig. 2). The plurality of limiting mechanisms are uniformly fixed on the inner support base 10 along the circumferential direction and are respectively in sliding fit with the supporting mechanism. In this embodiment, the number of the limiting mechanisms is six.

Specifically, the supporting mechanism includes two semicircular inner supporting blocks 1 surrounding the inner supporting base 10, semicircular grooves are formed in the front and rear sides of each inner supporting block 1, the sectional shape of each semicircular groove is rectangular (see fig. 2), an arc-shaped body 5 matched in shape is arranged in each semicircular groove, the sectional shape of each arc-shaped body 5 is semicircular, and the arc surface faces the outside. In this embodiment, the radius of the arc-shaped body 5 is equal to the depth of the semicircular groove. A plurality of first through holes which are communicated with each other in the front and back are uniformly formed in the two inner supporting blocks 1 along the circumferential direction, the first through holes are communicated with the corresponding semicircular grooves, the number of the first through holes is equal to that of the limiting mechanisms, and the first through holes are in one-to-one radial correspondence (each inner supporting block 1 corresponds to three limiting mechanisms). A fixed spring 4 is arranged in the first through hole, and two ends of the fixed spring 4 are respectively connected with the two corresponding arc-shaped bodies 5 in a welding way. The position that lies in each first through-hole on two 1 outer circumferences of inner supporting shoe all sets up the radial groove staggered with first through-hole, and radial inslot interpolation has the fitting pin 2, and the outstanding radial groove of fitting pin 2, and the rigid coupling has snap ring 3 on the fitting pin 2, 3 bottom both sides of snap ring are all integrative to be connected with the connecting plate perpendicularly, and two connecting plate are terminal to buckle along corresponding semicircle groove section, constitute end baffle, and two end baffles insert respectively and correspond 4 two of fixed spring, precompression fixed spring 4. And a cavity for the snap ring 3 and the connecting plate to move radially is formed in the inner supporting block 1.

After the locking pin 2 is pressed down, the clamping ring 3 and the connecting plate move inwards, the two end baffles are separated from the corresponding fixed springs 4, and the fixed springs 4 push out the corresponding two arc-shaped bodies 5 to support the tire shoulder position of the tire B.

The limiting mechanism comprises two limiting blocks 6 and a supporting rod 12, wherein the two limiting blocks 6 are L-shaped and are respectively and vertically welded and fixed on the front side and the rear side of the outer circumferential surface of the inner support base 10, and the short section end surfaces of the two limiting blocks 6 are opposite. A return spring 11 is vertically welded and fixed at a position between the two limiting blocks 6 on the outer circumferential surface of the inner support base 10, limiting springs 8 are vertically welded and fixed on the inner side surfaces of the long sections of the two limiting blocks 6, and the two limiting springs 8 are opposite.

The inner sides of the two inner supporting blocks 1 are integrally provided with a convex block corresponding to the position of the limiting mechanism, the bottom of the convex block is provided with a T-shaped groove which is through from front to back, the top of the supporting rod 12 is provided with a T-shaped bulge matched with the T-shaped groove, and the supporting rod 12 is embedded and matched with the convex block in a sliding manner, as shown in fig. 5. Rectangular channels have been seted up at bracing piece 12 both ends, set up slidable ball pivot support in two rectangular channels, and articulated in the ball pivot support have spacing ball 7 (in this embodiment, 7 diameter sizes of spacing ball equal with 8 diameter sizes of spacing spring), still set up the second through-hole of two rectangular channels of intercommunication in the bracing piece 12, be provided with pressure spring 13 in the second through-hole, pressure spring 13 both ends link to each other with two ball pivot support welding respectively.

All be provided with on the short section terminal surface of two stopper 6 with spacing ball 7 assorted circular arc hole, under the ordinary pressure operating mode, bracing piece 12 supports between the short section terminal surface of two stopper 6 through pressure spring 13. Under the working condition of zero pressure or low pressure, the supporting mechanism and the supporting rod 12 integrally move inwards, and the pressing spring 13 is opened, so that the two limiting balls 7 are respectively contacted with the two limiting springs 8. The support rod 12 is held by the return spring 11.

As the improvement of the scheme, the opposite ends of the two limit springs 8 are fixedly welded with a baffle which is used for abutting against the limit ball 7 under the working condition of zero pressure or low pressure.

The working principle of the inner supporting device of the safety tire is as follows:

under the standard inflation condition of the safety tire, as shown in fig. 1 and fig. 2, a distance is left between the two inner support blocks 1, and the distance between the two inner support blocks 1 is equal to the maximum vertical displacement of the inner support blocks 1 after entering the two limit blocks 6 and the limit grooves surrounded by the inner support base 10. At the moment, the fixed spring 4 is in a compressed state, and the arc bodies 5 on two sides of the inner supporting block 1 are tightened in the inner supporting block 1 under the action of the fixed spring 4. Pressure spring 13 is in the contraction state, and the spacing ball 7 at both ends draws close to the centre, because interior supporting shoe 1 wholly does not have exogenic action, and pressure spring 13 is in the contraction state, and spacing ball 7 receives pressure spring 13 effect card in the circular arc hole of stopper 6, plays the effect of fixed interior supporting shoe 1.

Under the working condition of low pressure or zero pressure of the safety tire, as shown in fig. 3 and 4, at the moment, the outer side surface of the inner supporting block 1 is in contact with the inner side surface of the tire B, the locking pin 2 is pressed into the inner supporting block 1, the clamping ring 3 is loosened, and under the action of the fixed spring 4, the two arc-shaped bodies 5 are pushed out of the inner supporting block 1 to be in contact with the tire shoulder part, so that the contact area between the tire tread and the ground is increased, and the attachment capacity is improved. The two inner supporting blocks 1 lean against each other to form a whole circle. Meanwhile, the limiting ball 7 is also pressed into a limiting groove formed by enclosing the two limiting blocks 6 and the inner supporting base 10, and under the action of the compression spring 13, the limiting ball 7 is pushed out to be in contact with the limiting spring 8. In order to ensure smooth contact, in the embodiment, the opposite ends of the two limiting springs 8 are provided with the baffle plates, the limiting springs 8 limit the horizontal movement of the inner supporting block 1, the buffer effect is achieved during turning, the deviation is reduced, the vehicle operation stability is improved, the bottom of the supporting rod 12 is in contact with the return spring 11, the return spring 11 limits the vertical movement of the inner supporting block 1, and the vehicle vibration damping performance is improved.

The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any alternative or alternative method that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the scope of the present invention.