CN102442167A - Explosion-proof and anti-skid emergency wheel for motor vehicle - Google Patents

Abstract

The invention discloses an explosion-proof and anti-slip emergency wheel of a motor vehicle, which consists of a tire, an explosion-proof emergency wheel, an inner wheel hub seat, a fixed crescent key for the explosion-proof emergency wheel, a steel bowl installed on the conical surface of the emergency wheel, a lock washer, a fixing nut, and an outer wheel hub seat, inflatable nozzle, overpressure control valve, minimum air pressure alarm and anti-skid device, the fixed crescent key of the explosion-proof emergency wheel is installed in the crescent keyway of the outer hub seat, and the explosion-proof emergency wheel passes through the explosion-proof The emergency wheel fixed crescent key is put into the installation groove of the emergency wheel taper surface on the outer hub seat, and the aforementioned loose washer and fixing nut are installed; the inflation nozzle, the overpressure control valve, the minimum For an air pressure alarm, the inner hub seat is installed on the outer hub seat. In the event of a sudden tire blowout accident, the emergency wheel instantly replaces the tire to avoid accidents; the anti-skid device can avoid accidents caused by tire slippage; tire repair does not require tire removal equipment, saving resources and energy and reducing pollution emissions.

Description

Explosion-proof anti-skid emergency wheels for motor vehicles

technical field

The invention relates to an explosion-proof and anti-slip emergency wheel, which belongs to the wheel manufacturing engineering in the field of motor vehicle manufacturing industry. It can be widely used in firefighting, rescue, ambulance, army, aviation and various motor vehicles.

Background technique

In the prior art, it is common for a vehicle to run into a tire blowout accident when running normally, which brings huge losses to people's lives and property. 80,989 people were killed, 391,752 people were injured, and the property loss was 2.02 billion yuan, of which 19.1% were accidents caused by tire blowouts, 63.94% were injured and 43.38% were property losses. And on expressways, 46% of traffic accidents are caused by tire failures, of which punctures account for 70%. With the increase of car ownership, road traffic accidents have a tendency to increase significantly. In 2010, there were 3.906 million road traffic accidents in China, a year-on-year increase of 35.9%. Among them, highway accidents resulted in a year-on-year increase of 5.2% and 4% respectively in the death toll. When driving on ice and snow roads, there are countless accidents and property losses caused by vehicle tires slipping out of control. In order to prevent the recurrence of this type of accident, the present invention thoroughly solves this type of technical problem. In addition, the tire must be removed (tire removal) during tire repair. Manual tire removal is very difficult. Machine tire removal is now used. The tire removal equipment is composed of mechanical devices, hydraulic devices, circuit control devices, motors, and fuselages. It has the characteristics of large footprint, heavy weight, unsafe, loud noise and so on.

Contents of the invention

Aiming at the problems existing in the prior art, the purpose of the present invention is that when a sudden tire blowout accident occurs during the driving of a motor vehicle, the emergency wheel installed in the tire on the wheel hub will replace the tire to continue driving in an instant, thereby avoiding the accident of car crash and death. Bad accidents happen. When driving on ice and snow roads, install anti-skid devices matched with wheels and tires without any tools. The anti-skid bolts only need to be held in place by hand, and there is no harm in loosening them. All technical problems such as easy installation, firmness and no deformation, good anti-skid effect, and easy disassembly have been fully considered before the design. Really achieve driving on ice and snow roads, can avoid major accidents caused by tire slippage. Save human life and property damage. And it can increase the speed of vehicles, increase the traffic volume, and reduce the time of traffic jams. Save energy and reduce emissions. In the process of repairing the tire, the tire can be taken off only by removing the bolts, and there is no need to remove the tire, so a large number of tire removal equipment is saved, and a large amount of resources and energy are also saved.

The technical solution of the present invention is: an explosion-proof and anti-slip emergency wheel of a motor vehicle, the explosion-proof emergency wheel, the emergency wheel is connected with the fixed pin, the outer hub seat, the fixed crescent key of the explosion-proof emergency wheel, and the conical surface of the emergency wheel is equipped with a steel bowl and a loose gasket It consists of a fixed nut, an inner hub seat, an inflation nozzle, an overpressure control valve, a minimum air pressure alarm, and an anti-skid device. The explosion-proof emergency wheel is divided into two halves in the middle of the emergency wheel, the emergency wheel connection fixing pin and the rubber wheel. When installing the emergency wheel, install the emergency wheel connection fixing pin on one side of the emergency wheel, and put the two emergency wheels into the tire respectively. Then assemble it into an emergency wheel. The rubber wheels are installed on the metal wheels and have a hardness similar to that of tires. When a tire blowout accident occurs, the emergency wheels can replace the tires and continue driving. At this time, the vehicle can be used normally, with directions and brakes. The connection between the outer hub seat and the explosion-proof emergency wheel adopts the connection method of double conical surfaces. The main functions are accurate positioning, firmness, easy installation, easy disassembly, good fixation, good coaxiality and verticality, can transmit a certain torque to reduce the impact on the crescent key and the crescent keyway, and can effectively ensure the dynamic balance. The specific installation procedure is to install the emergency wheel connection fixing pin on one side of the emergency wheel, put the two emergency wheels into the tires respectively and then assemble the emergency wheel. Install the crescent key in the crescent keyway of the outer hub seat, and observe the position of the crescent key on the outer hub seat and the keyway of the explosion-proof emergency wheel. Align the crescent key with the emergency wheel keyway and push it into the emergency wheel taper mounting groove on the outer hub seat. Install the conical surface of the emergency wheel, install the steel bowl, the lock washer and the fixing nut, and then use a wrench to clamp it in the fixing groove of the fixing nut, and tighten the fixing nut by hand. Install the gasket assembly, install the inflation nozzle, the overpressure control valve, and the minimum air pressure alarm on the outer hub seat. Install the inner hub seat to the outer hub seat, and finally use the fixing bolts of the hub seat and the outer hub seat in Figure 15 to install and fix each mounting hole symmetrically, and then fill the tire with standard tire pressure to use. In the process of repairing the tire, you only need to remove the bolts to remove the tire, and you don’t need to remove the tire, so you save a lot of heavy tire removal equipment, reduce heavy physical labor, and also save a lot of resources and energy. It can be driven by installing the matching anti-skid device. For details, see the general assembly drawing of the explosion-proof and anti-skid emergency wheel of the motor vehicle, and the general assembly drawing A of the explosion-proof and anti-skid emergency wheel of the motor vehicle.

Description of drawings

Fig. 1 is a front view of an emergency wheel according to an embodiment of the present invention.

Fig. 2 is a left side view of the emergency wheel according to the embodiment of the present invention.

Fig. 3 is the connection fixing pin of the emergency wheel according to the embodiment of the present invention.

Fig. 4 is the steel bowl installed on the conical surface of the emergency wheel of the embodiment of the present invention

Fig. 5 is the anti-loosening washer of the embodiment of the present invention.

Fig. 6 is the fixing nut of the embodiment of the present invention.

Fig. 7 is a crescent key according to an embodiment of the present invention.

Fig. 8 is a front view of the outer hub seat of the embodiment of the present invention.

Fig. 9 is a left side view of the outer hub seat of the embodiment of the present invention.

Figures 10, 12, 17, and 19 are planar gaskets according to embodiments of the present invention.

Figures 11, 13, 16, and 18 are O-rings of the embodiments of the present invention.

Fig. 14 is a plane sealing gasket for connecting and fixing screw holes between the inner hub seat and the outer hub seat according to the embodiment of the present invention.

Fig. 15 is the fixing bolts of the inner hub seat and the outer hub seat of the embodiment of the present invention.

Fig. 20 is a front view of the inner hub seat of the embodiment of the present invention.

Fig. 21 is a left side view of the inner hub seat of the embodiment of the present invention.

Fig. 22 is a semicircular head square neck anti-skid connecting plate fixing bolt according to an embodiment of the present invention.

Fig. 23 is a single-chain self-locking anti-slip connecting plate according to an embodiment of the present invention.

Fig. 24 is a double-chain self-locking anti-slip connecting plate according to an embodiment of the present invention.

Fig. 25 is a single-chain anti-skid connecting plate according to an embodiment of the present invention.

Fig. 26 is a double-chain anti-skid connecting plate according to an embodiment of the present invention.

Fig. 27 is a tire of an embodiment of the present invention.

Fig. 28 is the anti-skid device assembly of the embodiment of the present invention.

Fig. 29 is a dustproof cover or a decorative cover according to an embodiment of the present invention.

Fig. 30 is a front view of the general assembly drawing of the anti-explosion and anti-skid emergency wheel of the motor vehicle according to the embodiment of the present invention.

Fig. 31 is a left view of the general assembly drawing of the anti-explosion and anti-skid emergency wheel of the motor vehicle according to the embodiment of the present invention.

Fig. 32 is a front view of the general assembly drawing A of the anti-explosion and anti-skid emergency wheel of the motor vehicle according to the embodiment of the present invention.

Fig. 33 is the left side view of the general assembly drawing A of the anti-explosion and anti-skid emergency wheel of the motor vehicle according to the embodiment of the present invention.

Detailed ways

The present invention will be further elaborated below in conjunction with the accompanying drawings and specific embodiments.

The emergency wheel of this embodiment consists of an explosion-proof emergency wheel, an inner hub seat, a fixed crescent key of the explosion-proof emergency wheel and a steel bowl, a lock washer and a fixing nut, an outer hub seat, and the inner and outer hub seats are installed on the conical surface of the emergency wheel. Together, the sealing groove of the outer hub seat and the sealing ring of the inner hub seat can be matched and connected according to the requirements of the drawings. The joints 11, 13, 16, and 18 are sealed with O-rings, and the sealing grooves and sealing rings are sealed on the surrounding end faces. 10, 12, 17, and 19 on the flat surface are then sealed with flat gaskets, and all the sealing rings and gaskets can be made into a whole (gasket assembly), and the outer hub seat and the inner hub seat in Figure 8-5 The sealing gasket at the connection fixing screw hole and the connection fixing screw hole between the hub seat and the outer hub seat in Figure 21-4 needs to be thickened in Figure 14, so as to ensure the tightness of the hub. Finally, it is formed by fixing the inner and outer hub seat with the fixing bolts of the hub seat and the outer hub seat in Fig. 15. The specific installation procedure is that first one side of the emergency wheel is installed with the emergency wheel connection fixing pin and put into the tire, the other half is also put into the tire and assembled into the emergency wheel in the tire, and the emergency wheel is installed as a whole. Use a crescent key to install in the crescent keyway of the outer hub seat, observe the positions of the crescent key on the outer hub seat and the keyway of the explosion-proof emergency wheel, align the emergency wheel and tire with the crescent key and push them onto the outer hub seat In the conical mounting groove of the emergency wheel, install the conical mounting steel bowl of the emergency wheel, the washer and the fixing nut, and then use a wrench to clamp it in the groove of the fixing nut, and tighten the fixing nut by hand. Install the upper gasket assembly, install the inflation nozzle, the overpressure control valve, and the minimum air pressure alarm on the outer hub seat. Then install the inner hub seat on the outer hub seat, and finally fix it with the fixing bolts of the hub seat and the outer hub seat in Figure 15. Fill the tire with standard tire pressure and then use it. When driving on ice and snow roads, first install the anti-skid device matched with the wheel hub tire. The specific installation procedure is. Install the single-chain or double-chain anti-skid connecting plate in Figure 25 or Figure 26 on the square neck or hexagonal neck of the fixing bolt of the half-round head square neck or half-round head hexagonal neck anti-skid connecting plate in Figure 22, and install the single-chain or double-chain anti-skid connecting plate and The fixing bolts of the anti-skid connecting plate of the semi-round head and square neck are fixed together in the anti-skid device installation and fixing screw holes of the inner hub seat, as shown in Figure 21-18. Then install the single chain or double chain self-locking anti-slip connecting plate in Figure 23 or Figure 24 on the hexagonal neck or square neck of the fixing bolt of the half-round head square neck or half-round head hexagonal neck anti-skid connecting plate in Figure 22, and place Figure 23 or Figure 24 Chain or double-chain self-locking anti-slip connecting plate and semicircular head square neck anti-slip connecting plate fixing bolts are fixed together in the anti-skid device installation fixing screw hole of outer hub seat. Install the anti-skid chain in the self-locking device of the outer anti-skid connecting plate. This prevents the anti-skid connecting plate fixing bolts from coming off. It can safely drive on ice and snow roads. For details, see the general assembly drawing of explosion-proof and anti-skid emergency wheels for motor vehicles.

Figure 1 Front view of the explosion-proof emergency wheel. Figure 2 Left view of the explosion-proof emergency wheel. It is connected with pin Fig. 3 and forms in the middle of two emergency wheels 2-1, 2-2. In order to ensure the dynamic balance, a permanent balance weight or a weight reduction balance is first installed on the emergency wheel. It has passed the dynamic balance check when used. Due to the double cone design. It is a spare wheel installed in the tire on the wheel hub, and its one side is equipped with a taper of 1-7 to match the conical surface of the outer hub seat. 1-8 emergency wheel is installed and fixed taper surface 1 is matched with the emergency wheel taper surface mounting groove of outer wheel hub seat. 1-9 The emergency wheel installation and fixing cone 2 is matched with the steel bowl installed on the emergency wheel cone in Figure 4. Due to the use of the conical cylindrical joint surface, it ensures accurate positioning, firmness, easy installation, easy disassembly, good fixation, good coaxiality and verticality, and can transmit a certain torque to reduce the impact on the crescent key and the crescent keyway. It can effectively ensure the dynamic balance. The explosion-proof emergency wheel should be installed in the center of the wheel hub (centered). The wheel width should be as far as possible. When about 1/4 of the outer side of the tire is pressed to the curb, neither the tire surface nor the side of the tire should touch the explosion-proof emergency wheel. The weight of the emergency wheel should be reduced as much as possible, and the width of the wheel surface should be about 10cm. The wheel surface of the emergency metal wheel should have an appropriate curvature and the wheel formed after the installation of the rubber wheel should be basically similar in hardness to the pneumatic tire and larger than the diameter of the wheel hub and smaller than the diameter of the tire. The diameter of the emergency wheel should match the diameter of the wheel hub and tire. If the difference between the maximum diameter of the tire and the maximum diameter of the emergency wheel is too large, the direction will deviate when the tire bursts, which is unsafe. If the difference between the maximum diameter of the tire and the maximum diameter of the emergency wheel is too small, the tire will collide with the emergency wheel when the road surface is uneven, which will affect the ride comfort. Therefore, the distance between the diameter of the emergency wheel, the diameter of the hub and the diameter of the tire must be adjusted to the best position. The maximum radius of the hub is about 30-40MM smaller than the maximum radius of the emergency wheel. It is required that when the tire has no pressure, the wheel hub cannot touch the ground and a certain distance should be left when the tire is turned to full. The maximum radius of the emergency wheel is about 40-50MM smaller than the maximum radius of the tire. When the tire is inflated, the air pressure can be rushed to the upper deviation of the design air pressure, so that the resistance can be reduced, the normal wear and tear of the tire can be guaranteed, fuel can be saved, and emissions can also be reduced. In the prior art, many drivers are worried about a tire blowout, so they all lower the air pressure to the lowest point or below the normal pressure, which increases tire wear and resistance, wastes fuel, and increases pollution emissions. Over time, it increases the frequency of tire blowouts. When a tire blowout accident occurs, the emergency wheel can instantly replace the original tire and continue driving, thereby avoiding major traffic accidents and reducing personal casualties and property losses. It is installed on the conical shaft of the outer hub seat and in the center of the inner hub seat and the outer hub seat. Use 3 crescent keys to position and install the crescent groove on the evenly distributed inner hub seat and the keyway of the explosion-proof emergency wheel, and then install the emergency wheel. The steel bowl and the loose gasket are installed on the wheel cone surface, and finally fixed with double nuts.

1-3 explosion-proof emergency rubber wheels. Mounted on explosion-proof emergency metal wheels. The explosion-proof emergency rubber wheel has a hardness similar to that of the tire. When the tire blows out or is attacked or the tire has no pressure, the rubber emergency wheel will replace the blown tire and continue driving at this moment, but there will be a slight vibration to remind the driver that the tire has blown out. Because the emergency wheel is composed of two pieces, the hardness of the seam is different from that of other parts. The steering and braking of the vehicle can be used normally, and the tires are not easily damaged. In the prior art, when the tire has no pressure, it cannot continue to drive; if it continues to drive, the wheel rim will directly crush the tire, and the tire will be damaged or scrapped soon, and the wheel hub will also be deformed or scrapped.

1-4 The explosion-proof emergency metal wheel is mainly to provide installation conditions for the explosion-proof emergency rubber wheel, and it must have strength and toughness when driving.

1-5, 1-5-1, 1-6, 1-6-1 Explosion-proof emergency wheels are connected to fixing pin mounting holes for assembling emergency wheels.

1-7 The emergency wheel is installed with a tapered surface.

The 1-8 emergency wheel is installed with a fixed cone 1.

The 1-9 emergency wheel installs the fixed cone 2.

The 1-10 explosion-proof wheel keyway is used for positioning, connecting and fixing with the outer hub seat. The number and angle of the grooves should match the outer wheel hub seat, the number of grooves is 3, and the grooves are evenly distributed to improve the dynamic balance of the wheel.

Figure 2 is the left view of the explosion-proof emergency wheel, which consists of emergency wheel 1, emergency wheel 2, emergency wheel connection fixing pins, and rubber wheels. Then assemble it according to the procedure, then carry out the dynamic balance test, install the permanent balance weight or reduce the weight, must pass the dynamic balance test, classify according to the set, and use it according to the set when used. The components that need to be tested for assembling the explosion-proof and anti-skid emergency wheels must pass the dynamic balance test.

2-1 emergency wheel 1.

2-2 emergency wheel 2.

2-5, 2-6, 2-7, 2-8 emergency wheel connection fixing pins.

Figure 3 The emergency wheel is connected to the fixed pin, and the purpose is to connect and fix the two emergency wheels into a whole.

Figure 4 The steel bowl is installed on the conical surface of the emergency wheel. Its conical surface should match the conical surface of the outer 2 of the emergency wheel, mainly to install and fix the emergency wheel, so that the emergency wheel is installed on the hub more firmly.

Figure 5. The loose gasket is used to prevent the explosion-proof wheel from loosening.

Figure 6 is the fixed nut, which is used to fix the explosion-proof wheel.

Figure 7. The function of the crescent key is to more accurately install the explosion-proof emergency wheel on the outer hub seat, thereby ensuring the dynamic balance of the wheel and effective braking.

Figure 8 Outer hub seat.

8-1. Outer hub seat emergency wheel cone installation groove, its characteristic is that it is larger than the outer hub seat garden cone surface and a conical surface circular groove is processed by the tire installation position, the small outer circle of the groove is the outer wheel hub seat garden cone surface, the groove The side is a vertical plane. The maximum outer circle of the side of the groove and the big outer circle of the groove are a conical surface 8-1, which is mainly matched with the outer conical surface of the emergency wheel. The purpose is to install emergency wheels. Due to the conical connection method, insert the emergency wheel installation and fixing cone surface 1 into the emergency wheel cone surface installation groove of the outer hub seat, and install the emergency wheel cone surface installation bowl on the emergency wheel installation and fixing cone surface 2 conical surface, Install the washer and tighten it with the fixing nut. Since the two outer ends of the emergency wheel are connected and fixed by conical surfaces, when the fixing nut is tightened, the emergency wheel is squeezed by both sides, and the conical surface of the emergency wheel is firmly squeezed to the conical surface of the outer hub seat, so that the two Half of the emergency wheel is squeezed into a conical surface groove and the emergency wheel conical surface is installed in the bowl cone surface simultaneously. Guaranteed coaxiality and strength.

8-2 outer wheel hub seat garden cone, its function is to install the explosion-proof wheel more accurately. Due to the use of the conical cylindrical joint surface, it ensures accurate positioning, easy installation, easy disassembly, good fixation, good coaxiality and verticality, and can transmit a certain torque to reduce the impact on the crescent key and the crescent keyway. Effectively ensure dynamic balance.

8-3 The crescent keyway of the outer hub seat is mainly used to install and fix the outer hub seat and the explosion-proof wheel together for effective braking. It consists of 3 parts and should be evenly distributed. The main purpose is to improve the dynamic balance of the wheel.

8-4 Outer hub seat lock washer groove, used to place the lock washer to prevent the lock washer from rotating with the fixing nut.

8-5 The fixing screw holes of the outer hub seat and the inner hub seat, the number is determined according to the size of the hub, and matched with the inner hub seat, they must be evenly distributed.

8-6 outer hub seat spokes, which can be composed of 4-10 stems, must be evenly distributed. Same size and shape too.

8-7 hub installation and fixing holes can be composed of 4-8 holes, which must be evenly distributed.

8-8 Mounting holes for dust cover or decorative cover.

8-9 outer hub seat end face 1, when installing with interior hub seat 21-9, seal gasket is installed at this position, completes sealing for the ninth time.

8-10 Outer hub seat positioning seal groove 1, when the outer hub seat and the inner hub seat 21-10 are installed, the outer hub seat positioning seal groove 1 and the inner hub seat positioning seal ring 1 can play a role in guiding and positioning when installing, improving the wheel hub. Precision and bonding strength, a sealing ring is placed in the groove to complete the eighth seal.

8-11 outer hub seat end face 2, when the outer hub seat end face 2 and 21-11 inner hub seat end face 2 are installed, an end face gasket is installed in the middle of the outer hub seat end face 2 and the inner hub seat end face 2. Complete the seventh seal.

8-12 outer hub seat positioning seal groove 2, when the outer hub seat and 21-12 inner hub seat are installed, the outer hub seat positioning seal groove 2 and the inner hub seat positioning seal ring 2 can play a guiding and positioning role when installing, improving the wheel hub. Precision and bonding strength, a sealing ring is placed in the groove to complete the sixth seal.

8-13 outer hub seat end face 3, when the outer hub seat end face 3 and 21-13 inner hub seat end face 3 are installed, an end face gasket is installed in the middle of the outer hub seat end face 3 and the inner hub seat end face 3. The surrounding of the mounting screw hole of the gasket is thickened (Figure 14). Complete the fifth seal.

8-14 outer wheel hub seat positioning sealing groove 3, its function is to precisely locate with 21-14 inner wheel hub seat sealing ring 3, improve the strength of the wheel hub assembly, ensure the coaxiality of the wheel hub, and enhance the sealing ability. Place the sealing ring in the groove. Complete four seals.

8-15 outer hub seat end face 4, when the outer hub seat end face and 21-15 inner hub seat end face 4 are installed, the middle of the outer hub seat end face 4 and the inner hub seat end face 4 is installed with an end face gasket. Used to complete three high seals.

8-16 outer hub seat positioning sealing groove 4, its function is to precisely locate with the sealing ring 4 of 21-16 inner hub seat, improve the strength of the hub assembly, ensure the coaxiality of the hub, and enhance the sealing ability. Place the sealing ring in the groove. Make a second seal.

8-17 outer hub seat end face 5, when the outer hub seat end face 5 and 21-17 inner hub seat end face 5 are installed, an end face gasket is installed in the middle of the outer hub seat end face 5 and the inner hub seat end face 5. The gasket is thicker than the normal gasket and the gasket made of good elasticity, easy deformation material and high temperature resistant material is used to complete the first seal.

Focus on the sealing of 8-13 to 8-17 to ensure the tightness of the hub.

8-18 outer hub seat bolts are used to fix explosion-proof wheels. The thread is processed according to the forward direction of the vehicle to ensure that the moment of inertia of the bolt is in the tightening direction when the wheel is rotating.

8-19 The fixing screw holes for the anti-slip device of the outer hub seat can be composed of 8-10 holes, which must be evenly distributed.

Figure 9 is the left side view of the outer hub seat.

9-1 Inflatable nozzle installation hole.

9-2 Overpressure control valve installation hole.

9-3 minimum air pressure alarm installation hole.

Fig. 10 gasket 1 is used for cushioning in the middle of outer hub seat 8-9 and interior hub seat 21-9, and its effect is to guarantee the parallelism of outer hub seat and interior hub seat. Make all joints evenly loaded. Seals securely. And the outer hub seat and the inner hub seat are sealed for the ninth time.

Fig. 11 sealing ring 1 is used to be installed in the positioning seal groove of outer hub seat 8-10, and then fixed and compressed with the sealing ring of inner hub seat 21-10 to carry out the eighth seal.

Fig. 12 gasket 2 is used for cushioning in the middle of outer hub seat 8-11 and interior hub seat 21-11, and its effect is to guarantee the parallelism of outer hub seat and interior hub seat. Make all joints evenly loaded. Seals securely. And the outer hub seat and the inner hub seat are sealed for the seventh time.

Fig. 13 sealing ring 2 is used to be installed in the positioning sealing groove of outer hub seat 8-12, and then the sealing ring of inner hub seat 21-12 is fixed and compressed to carry out the sixth sealing.

Figure 14 gasket 3 is used to pad the middle of the outer hub seat 8-13 and the inner hub seat 21-13 and the middle of the plane around the fixed screw hole of the outer hub seat and the inner hub seat, and the gasket on the plane around the screw hole needs to be Thickening, so that the sealing of the fixing screw holes and the outer hub seat and the inner hub seat can be guaranteed, and the fifth sealing is performed on the outer hub seat and the inner hub seat.

14-1 The part that needs to be thickened.

14-2 The number of gasket installation holes is determined according to the size of the hub, and must be evenly distributed with the outer hub seat and the inner hub seat.

14-3 normal parts.

Figure 15 li hub seat and outer hub seat fixing bolt, its effect is to connect and fix inner hub seat and outer wheel hub seat.

Fig. 16 sealing ring 3 is used to be installed in the sealing groove of outer hub seat 8-14, and then the sealing ring of inner hub seat 21-14 is fixed and compressed to carry out the fourth sealing.

Fig. 17 gasket 4 is used for cushioning in the middle of outer hub seat 8-15 and interior hub seat 21-15, and its effect is to guarantee the parallelism of outer hub seat and interior hub seat. Make all joints evenly loaded. Seals securely. And the inner hub seat and the outer hub seat are sealed for the third time.

Figure 18 sealing ring 4 is used to be installed in the sealing groove of outer hub seat 8-16, and then the sealing ring of inner hub seat 21-16 is fixed and compressed to carry out secondary sealing.

Fig. 19 gasket 5 is used to pad in the middle of the outer hub seat 8-17 and the inner hub seat 21-17, and its effect is to ensure the parallelism of the outer hub seat and the inner hub seat. Make all joints evenly loaded. Seals securely. The gasket is thicker than the normal gasket and is made of a material with good elasticity and deformation and a gasket made of high temperature resistant material to complete the first seal. And produce a larger joint surface at the joint edge of the inner hub seat and the outer hub seat. Increased sealing performance. Automatic tire sealant is also available.

Gasket Figures 10, 12, 17, and 19 have basically the same shape, and they are the same figures when drawn on the drawings, using one figure. Sealing ring Figures 11, 13, 16, and 18 have basically the same shape, the minor diameter d of the sealing ring is the same, and the major diameter D is different. It is the same figure drawn on the drawing, with a single figure. It is also possible to make all sealing rings and gaskets into a whole, the gasket assembly. This seals better. Focus on the sealing of 8-13 to 8-17 to ensure the tightness of the hub.

Front view of hub seat in Fig. 20.

The left side view of the hub seat in Fig. 21.

21-4 The number and distribution of the fixed screw holes connecting the inner wheel hub seat and the outer wheel hub seat should match the outer wheel hub seat.

21-9 The end face 1 of the inner hub seat is used to place the gasket shown in Figure 10 on the end face to ensure that the inner hub seat is parallel to the outer hub seat. Make all joints evenly loaded. Complete the ninth seal.

21-10 Inner hub seat positioning seal ring 1 is mainly to improve the bonding accuracy and bonding strength of the inner hub seat and outer hub seat, and can play a guiding and positioning role during installation. Place a sealing ring in front of the sealing ring as shown in Figure 11 to improve the sealing ability and complete The eighth seal.

21-11 The end face 2 of the inner hub seat is used to place a gasket on the end face as shown in Figure 12 to ensure that the inner hub seat is parallel to the outer hub seat. Make all joints evenly loaded. Complete the seventh seal.

21-12 Inner hub seat positioning sealing ring 2 is mainly to improve the bonding accuracy and bonding strength between the inner hub seat and the outer hub seat, and can play a guiding and positioning role during installation. Place a sealing ring in front of the sealing ring as shown in Figure 13. The outer hub seat is sealed to complete the sixth seal.

21-13 The end face 3 of the inner hub seat is used to place a gasket on the end face as shown in Figure 14 to ensure that the inner hub seat is parallel to the outer hub seat. Make all joints evenly loaded. And seal the inner hub seat, the outer hub seat and the surroundings of the mounting screw holes. Complete the fifth seal.

21-14 inner hub seat positioning sealing ring 3, its function is to precisely locate with the 8-14 outer hub seat positioning seal groove 3, improve the strength of the hub assembly, ensure the coaxiality and dynamic balance of the hub, and place it in front of the sealing ring The sealing ring is shown in Figure 16, which enhances the sealing ability. Complete the fourth seal.

21-15 The end face 4 of the inner hub seat is used to place a gasket on the end face as shown in Figure 17 to ensure that the inner hub seat is parallel to the outer hub seat. Make all joints evenly loaded. Seal the inner and outer hub seats. Complete the third seal.

21-16 inner wheel hub seat positioning seal ring 4, its function is to precisely locate with 8-16 outer wheel hub seat positioning seal groove 4, improve the strength of the wheel hub assembly, and make the coaxiality and dynamic balance of the wheel hub more perfect. Place the sealing ring in front as shown in Figure 18 to enhance the sealing ability. Complete the second seal.

21-17 The end face 5 of the hub seat in 21-17 is used to place a gasket on the end face, as shown in Figure 19, to ensure that the inner hub seat is parallel to the outer hub seat, so that all joint surfaces are evenly stressed. Seal the inner and outer hub seats. The gasket is thicker than the normal gasket and the gasket made of good elasticity and easy deformation material and high temperature resistant material is used to complete the first seal. Since the largest outer circle is open, the inner hub seat and the outer wheel hub seat will produce a larger joint surface of the gasket at the joint edge under pressure, which can increase the sealing performance, and can also be used for automatic tire sealant.

21-18 The number and distribution of the fixing screw holes for the anti-skid device of the wheel hub seat should match that of the outer wheel hub seat.

Figure 22 The fixing bolts of the anti-slip connecting plate with half-round head and square neck mainly use the hexagonal neck or square neck of the half-round head square neck bolt or the hexagon neck bolt of half-round head to install the anti-slip connecting plate, and the fixing bolt of the anti-slip connecting plate is the same as that shown in Figure 25 or Figure 26. chain or double chain with diamond-shaped anti-skid chain and anti-skid connecting plate are fixed together on the inner hub, and then the single-chain or double-chain self-locking anti-skid connecting plate shown in Figure 23 or Figure 24 is fixed to the other side of the hub, and finally the diamond-shaped anti-skid chain Connected to the self-locking device of the anti-slip connecting plate of the outer hub seat. In this way, even if the fixing bolts of the semicircular head square neck anti-slip connecting plate are loose, the bolts will not rotate outwards and cause falling off.

Fig. 23 single-chain self-locking anti-skid connecting plate, it is installed on the outer hub seat, and its effect is that single-chain is installed in the self-locking device.

Figure 24 double-chain self-locking anti-skid connecting plate, it is installed on the outer hub seat, and its effect is that double chain is installed in the self-locking device.

Figure 25 single-chain anti-skid connecting plate, it is installed on the inner wheel hub seat, anti-skid chain is installed in the self-locking device of Figure 23.

Figure 26 double-chain anti-skid connecting plate, it is installed on the inner hub seat, anti-skid chain is installed in the self-locking device of Figure 24.

Figure 27 Tires.

Figure 28 Anti-skid device assembly. One end of the anti-skid device adopts a half-round head hexagonal neck bolt or a half-round head square neck bolt, and the matching Figure 23 single-chain self-locking anti-skid connecting plate or Figure 24 double-chain self-locking anti-skid connecting plate is installed on the hexagonal neck or square neck. Finally, install them together in the non-slip mounting screw holes on the hub. Use Figure 22 semicircular head hexagonal neck bolts or semicircular head square neck bolts to Figure 25 or Figure 26 to have the antiskid connecting plate of diamond anti-skid chain and wheel hub to be connected and fixed. The rhombus anti-skid chain is connected in the self-locking device of the anti-skid connecting plate again, so just can travel on ice and snow road. Due to the connection method of square neck or hexagonal neck, it can effectively prevent the bolt from turning outward and causing falling off. Due to the reasonable design, the installation and disassembly of the anti-skid chain is particularly convenient without any tools. Compared with the anti-skid chains of the same kind, the anti-skid chains are firm, strong and durable, and will not be deformed on the tires. Other anti-skid chains are particularly difficult to install because there is no positioning basis. After the installation is completed, the anti-skid chains are easily deformed on the tires, which affects the anti-skid effect.

Figure 29 Dustproof cover or decorative cover, the main function is dustproof and decoration.

Figure 30 is the front view of the general assembly drawing of the explosion-proof anti-skid emergency wheel of the motor vehicle.

Fig. 31 The left view of the general assembly drawing of the explosion-proof anti-skid emergency wheel of the motor vehicle.

Fig. 32 The front view of the general assembly drawing A of the explosion-proof and anti-skid emergency wheel of a motor vehicle.

Fig. 33 The left view of the general assembly diagram A of the explosion-proof anti-skid emergency wheel of a motor vehicle.

The explosion-proof and anti-skid emergency wheel of the motor vehicle of this embodiment, see the front view of the general assembly diagram of the explosion-proof and anti-skid emergency wheel of the motor vehicle in Figure 30, the left view of the general assembly diagram of the explosion-proof and anti-skid emergency wheel of the motor vehicle, Figure 32 the general assembly of the explosion-proof and anti-skid emergency wheel of the motor vehicle Figure A Front view. Consists of explosion-proof emergency wheel, inner wheel hub seat, fixed crescent key of explosion-proof emergency wheel and steel bowl, anti-loose gasket and fixing nut on the conical surface of emergency wheel, outer wheel hub seat, inflation nozzle, overpressure control valve, minimum air pressure alarm, anti-skid device composition. The specific installation procedure is to install the crescent key in the crescent keyway of the outer hub seat, put the emergency wheel into the tire in pieces, assemble the two emergency wheels together with the emergency wheel connecting pin, and observe the position on the outer hub seat. Align the crescent key and the keyway position of the explosion-proof emergency wheel, and push it into the emergency wheel cone mounting groove on the outer hub seat, install the emergency wheel cone mounting steel bowl, loose washer and fixing nut, Then use a wrench to be stuck in the groove of the fixing nut, and tighten the fixing nut by hand. 11, 13, 16, 18 are sealed with O-type sealing rings at sealing places, and 10, 12, 17, 19 are sealed with flat gaskets on the surrounding end face planes of sealing grooves and sealing rings. And the sealing gasket needs to be thickened on the plane of the fixed screw hole connecting the outer hub seat and the inner hub seat in Figure 8-5 and the edge of the fixing screw hole connecting the hub seat and the outer hub seat in Figure 21-4 (Figure 14). Figure 19 also needs to be thickened. This can better ensure the sealing of the hub. Install the inflation nozzle, overpressure control valve, and minimum air pressure alarm on the outer hub seat. They must be evenly arranged, and then install the inner hub seat on the outer hub seat. The hub seat is fixed. Fill the tire with normal pressure gas and then use it. Before driving on ice and snow roads, install the anti-skid device matched with this hub tire. Thereby, major traffic accidents caused by tire skidding on ice and snow roads can be avoided, and personal casualties and property losses can be reduced. For details, see the general assembly drawing of explosion-proof and anti-skid emergency wheels of motor vehicles and the general assembly drawing A of explosion-proof and anti-skid emergency wheels of motor vehicles.

The emergency wheel is installed on the wheel hub as the spare wheel (the wheel in the wheel) in the tire, which is installed with a taper and matched with the taper of the outer hub seat, and the explosion-proof emergency wheel is installed in the center of the wheel hub (centered). The width of the emergency wheel should be as wide as possible. When the outer side of the tire is pressed to the curb by about 1/4, the tire surface and the side of the tire should not touch the explosion-proof emergency wheel. The width is the maximum width. The wheel surface of the emergency metal wheel should have an appropriate curvature and the wheel formed after the installation of the rubber wheel should be basically similar in hardness to the pneumatic tire and 30-40MM larger than the hub, and the emergency wheel should be about 40-50MM smaller than the tire. When a tire blowout accident occurs, the emergency wheel can instantly replace the original tire and continue driving. Even if the vehicle has no tires, the vehicle can run normally with the emergency wheel. In order to avoid the occurrence of major accidents and prevent personal injury and property loss. It is mounted on the conical shaft of the outer hub base and is centered between the inner hub base and the outer hub base. Use 3 crescent keys to position and install the crescent grooves on the evenly distributed outer hub seat and the keyway of the explosion-proof emergency wheel, then install the steel bowl and the lock washer on the conical surface of the emergency wheel, and finally fix it with double nuts.

Make the hub into two halves, one is the inner hub seat and the other half is the outer hub seat. The junction of the outer hub seat and the emergency wheel is designed into a conical shape. The main functions are accurate positioning, easy installation, easy disassembly, good fixation, good coaxiality and verticality, can transmit a certain torque to reduce the impact on the crescent key and the crescent keyway, and can effectively ensure the dynamic balance. And in the range of the two diameters D1 and D2 of the conical surface (the surface with the highest strength of the inner hub seat), process the three-shaped keyway, which must be evenly distributed. The purpose is to improve the dynamic balance of the wheel. Then the small end shaft of the cone is processed into a bolt, and its thread is processed according to the forward direction of the vehicle to ensure that the moment of inertia of the bolt is in the fastening direction when the wheel is rotating. And process a small groove on the bolt (for loosening the gasket), but it cannot be processed to the end to leave a certain distance, because the inner sealing groove is relatively close to this section, and a little carelessness will cause the inner sealing groove to communicate with the small groove , resulting in reduced sealing. Therefore, it is necessary to ensure the sealing and the bonding strength of the inner and outer hubs. Process more than one seal groove on the reasonable position of the maximum diameter on the end surface perpendicular to the bolt, 8-16 outer hub seat positioning seal groove 4, 8-14 outer hub seat positioning seal groove 3, etc. Then process more than one seal groove 8-12 outer hub seat positioning seal groove 2, 8-10 outer hub seat positioning seal groove 1, etc. on the reasonable position where the bolt vertical end face of the outer hub seat is also the minimum diameter. Make the sealing ring and the gasket into an integral gasket assembly (or a single piece), and connect the outer hub seat and the inner hub seat in the integral gasket installation hole Figure 8-5 and the fixed screw hole of the inner hub seat in Figure 20-4. The sealing gasket on the edge plane of each connection fixing screw hole of the seat and the outer hub seat needs to be thickened, so that the edge planes of each connection fixing hole are compacted and sealed. Finally, it is connected and fixed with the processed inner hub seat matched with the outer hub seat.

The anti-skid device of this embodiment (seeing the anti-skid device assembly in Figure 28) is characterized in that it is processed into an anti-skid device for installation and connection on a reasonable optimal position outside the inner and outer hub seat (see the general assembly drawing of the explosion-proof anti-skid emergency wheel of a motor vehicle). The screw holes and threads are processed according to the forward direction of the vehicle to ensure that the moment of inertia of the bolts is in the fastening direction when the wheel is rotating. The number of screw holes connecting the anti-skid device is determined according to the size of the wheel hub and must be evenly distributed. Install the anti-skid connecting plate with diamond-shaped anti-skid chains in Figure 25 or Figure 26 to the position of the hexagonal neck or square neck of the anti-skid connecting plate fixing bolt in Figure 22, and connect the half-round head square neck bolts together with the anti-skid connecting plate with diamond-shaped anti-skid chains Install them together in the anti-slip device installation fixing screw hole of the inner hub seat, and then install the anti-slip connecting plate with self-locking device in Figure 23 or 24 to the position of the hexagonal neck or square neck of the fixing bolt of the anti-slip connecting plate in Figure 22, and then Install the anti-skid connecting plate fixing bolt together with the anti-skid connecting plate with self-locking device in Figure 23 or 24 into the anti-skid device installation fixing screw hole of the outer hub seat, and then connect the diamond-shaped anti-skid chain at the other end to the self-locking anti-skid connecting plate. in the lock device. In this way, you can drive on ice and snow roads. Due to the connection method of square neck or hexagonal neck, the bolts are completely prevented from turning outwards and causing falling off. Due to the reasonable design, the anti-skid chain is particularly convenient to install, and it does not need to be disassembled without any tools. Compared with the anti-skid chains of the same kind, the anti-skid chain has firm connection, simple structure, reasonable and practical, strong and durable, and will not be deformed or slipped on tires. It has good anti-skid effect on icy and snowy roads. Other anti-skid chains are particularly difficult to install because there is no connection, positioning and fixing foundation, and there is no way to fix them. After installation and driving, the anti-skid chains tend to slip and deform on the tires, causing the anti-skid chains to have different intervals, misalignment, etc., and even fall off and break. Damage the vehicle or even hurt people, and the anti-skid effect is low.

Although the present invention has been disclosed above with preferred embodiments, the embodiments and accompanying drawings are not intended to limit the present invention, and any person familiar with the art can make various changes without departing from the spirit and scope of the present invention. Or embellishment, also within the protection scope of the present invention. Therefore, the protection scope of the present invention should be defined by the protection scope of the claims of the present application.

Claims (10)

1. An explosion-proof and anti-skid emergency wheel for a motor vehicle, which includes tires and a wheel hub, and is characterized in that: it also includes an explosion-proof emergency wheel, an inner hub seat, a fixed crescent key for the explosion-proof emergency wheel, a steel bowl installed on the conical surface of the emergency wheel, and a loose pad sheet, fixing nut, outer hub seat, inflation nozzle, overpressure control valve and minimum air pressure alarm, the fixed crescent key of the explosion-proof emergency wheel is installed in the crescent keyway of the outer hub seat, and the explosion-proof emergency wheel passes through the The fixed crescent key of the explosion-proof emergency wheel is placed in the emergency wheel taper installation groove on the outer hub seat, and the anti-loosening gasket and fixing nut are installed; the inflation nozzle and the overpressure control valve are installed on the outer hub seat . The minimum air pressure alarm, the inner hub seat is installed on the outer hub seat. 2. The explosion-proof anti-slip emergency wheel for motor vehicles according to claim 1, characterized in that: the connection between the outer hub seat and the explosion-proof emergency wheel is a conical connection, and the explosion-proof emergency wheel is installed on the inner hub seat and the outer hub seat Use a three-month key to position and install the crescent groove on the evenly distributed outer hub seat and the keyway of the explosion-proof emergency wheel, install the emergency wheel cone surface, install the steel bowl, install the loose washer, and finally use double nuts Fixed; the outer hub seat bolts are used to fix the explosion-proof wheel; the threads are processed in accordance with the forward direction of the vehicle to ensure that the moment of inertia of the bolts is in the fastening direction when the wheel is rotating. 3. The explosion-proof anti-skid emergency wheel for motor vehicles according to claim 2, characterized in that: the maximum radius of the explosion-proof emergency wheel is about 30-40MM larger than the maximum radius of the hub, and the maximum radius of the hub is about 40-50MM smaller than the maximum radius of the tire; The connection between the outer hub seat and the explosion-proof emergency wheel adopts the connection method of double conical surfaces. 4. The explosion-proof and anti-slip emergency wheel for motor vehicles according to claim 3, characterized in that: the outside of the inner hub seat and the outer hub seat are processed into anti-skid device installation and connection screw holes, the thread is processed according to the forward direction of the vehicle, and the anti-skid device connection screw The number of holes is determined according to the size of the hub, evenly distributed. 5. The anti-explosion and anti-slip emergency wheel for motor vehicles according to claim 1, characterized in that: the explosion-proof emergency wheel is divided into two halves in the middle of the emergency wheel, and the emergency wheel is connected with a fixed pin and a rubber wheel. The emergency wheel connection fixing pin is installed on one side of the emergency wheel, and two emergency wheels are respectively put into the tire and then assembled into the explosion-proof emergency wheel. 6. The anti-explosion and anti-slip emergency wheel for motor vehicles according to claim 1, characterized in that: the hub is composed of two parts, the inner hub seat and the outer hub seat, a sealing ring and a gasket, and a sealing groove, a sealing ring, The gasket and the sealing ring are sealed to complete the explosion-proof anti-skid emergency wheel hub. 7. The anti-explosion and anti-slip emergency wheel for motor vehicles according to claim 1, characterized in that: the outer wheel hub seat is provided with an emergency wheel cone mounting groove, and the small outer circle of the emergency wheel cone mounting groove is the outer wheel hub Seat garden conical surface, the side of groove is a vertical surface; The maximum excircle of the vertical surface of groove and the big outer circle of groove are a conical surface, and supporting with the outer conical surface of emergency wheel, the purpose is to install emergency wheel. 8. The anti-explosion and anti-slip emergency wheel for motor vehicles according to claim 1, characterized in that: the largest outer circle and inner circle of the steel bowl installed on the conical surface of the emergency wheel adopt conical surfaces, and the angle is matched with the fixed conical surface of the emergency wheel. For more precise and firm installation of emergency wheels. 9. The explosion-proof anti-slip emergency wheel for motor vehicles according to any one of claims 1 to 8, characterized in that it also includes an anti-slip device, and the anti-slip device is fixed by anti-slip chains, anti-slip connecting plates and semi-round head square neck anti-slip connecting plates Composition of bolts. 10. The explosion-proof anti-skid emergency wheel for motor vehicles according to claim 9, characterized in that: the anti-skid chain is a diamond-shaped anti-skid chain; the anti-skid connecting plate is a single-chain self-locking anti-skid connecting plate, or a A double-chain self-locking anti-slip connecting plate, or a single-chain anti-slip connecting plate, or a double-chain anti-slip connecting plate.

Images