Snowfield brake auxiliary system

Abstract

The invention relates to the field of automobiles, in particular to a snow brake auxiliary system. The snowfield brake auxiliary system comprises a shell, the shell is a rectangular box body and is arranged in the long axis direction of the automobile, a containing space is formed in the shell, the end, close to rear wheels of the automobile, of the shell is a discharging end, and a material supplementing opening communicated with the containing space is further formed in one side of the shell; the clamping assembly is fixed at the upper end part of the shell; the feeding assembly is installed in the containing space in the shell and is composed of a telescopic component and a push plate. The remote control handle is in signal connection with the feeding assembly, and remote control over the feeding assembly is achieved. According to the snowfield brake auxiliary system, car accidents caused by the problems of slipping, sliding and the like of an automobile on an ice and snow covered road can be effectively reduced, the loss of an automobile owner is reduced, and the social public safety is improved.

Description

Technical Field

[0001] The present invention relates to the field of automobiles, and in particular to a snow brake assist system. Background Art

[0002] On snowy days (especially in areas with low temperatures and heavy snowfall), the roads are heavily covered with snow. After a small amount of ice and snow melts, the road surface is easily frozen, which will have a relatively serious impact on travel. For example, there are many uphill roads in the city, and cars slip, skid, and lack of brakes in winter cause frequent traffic accidents. In rural areas, the roads are narrow and winding, and the driving speed is fast, so traffic accidents are frequent due to insufficient brakes.

[0003] In this regard, many vehicles will tie anti-skid chains on the wheels. However, in actual use, the anti-skid chains will cause irreversible damage to the ground and reduce the service life of the road itself.

[0004] Therefore, it is necessary to provide a new snow brake assist system to solve the above technical problems. Summary of the Invention

[0005] In order to solve the above technical problems, the present invention provides a snow brake assist system.

[0006] The snow brake assist system provided by the present invention includes: The housing is a rectangular box-shaped body arranged along the long axis of the vehicle, and has a storage space inside. The end of the housing close to the rear wheel of the vehicle is a discharge end, and a feeding port connected to the storage space is also opened on one side of the housing; A clamping assembly, fixed to the upper end of the housing, for mounting the housing on the bottom of the vehicle; The feeding assembly is installed in the content space inside the shell and consists of a telescopic component and a push plate. The telescopic component can drive the push plate to move along the length direction of the shell, and the space between the push plate and the discharge end is a silo for storing sand and gravel. The push plate can be used to push the sand and gravel out of the discharge end, and the discharged sand and gravel are located in front of the moving direction of the rear wheels of the vehicle; A remote control handle is connected to the feeding assembly signal to achieve remote control of the feeding assembly.

[0007] Preferably, the plate at the discharge end of the shell is arranged obliquely, and a plurality of linearly distributed dividing knives for crushing sand and gravel are fixed between the plate, the top of the shell and the bottom of the shell. The thickness of the dividing knife is 1 mm, and the connection length with the top of the shell is 5 mm, and the connection length with the bottom of the shell is 10 mm. A reinforcing plate is fixed at the lower end of the shell near the discharge end. The end of the shell opposite to the discharge end has an opening, and an end cover is bolted to close the opening. A dust outlet is also provided at the lower end of the shell near the opening.

[0008] Preferably, the clamping assembly is a long, grooved clamp, which is arranged along the length of the shell and welded to the top of the shell. The clamp has holes for installing bolts and can be installed on the lower end of the car by bolts.

[0009] Preferably, the housing is mounted on the lower end of the vehicle between the front axle and the rear axle of the vehicle.

[0010] Preferably, the feeding port is located close to the opening, and screw rods vertically welded to the shell are provided on both sides of the feeding port; The feeding port is closed by a cover plate, and the side of the cover plate is provided with an integrally connected positioning plate. The positioning plate can be sleeved on the screw rod and fixed by a dovetail nut to stabilize the cover plate on the shell.

[0011] Preferably, the telescopic component includes a motor, which is fixed inside the housing near the opening and in direct contact with the housing. The output end of the motor is fixed to a single screw rod through a coupling, and the other end of the single screw rod is rotatably mounted on the inner wall of the housing. A slider that moves along the axial direction is also mounted on the single screw rod. The sides of the motor and the slider are equipped with scissor-shaped folding brackets that can be extended and retracted along the length direction of the shell.

[0012] Preferably, the push plate includes a base steel plate, which is slidably connected to the inside of the shell, and a connecting plate is welded and fixed on one side of the base steel plate, and the connecting plate is connected to the scissor-type folding bracket, and a surface rubber is bonded and fixed on the other side of the connecting plate, and each side of the surface rubber is in contact with the inner wall of the shell.

[0013] Preferably, a balance spring is further provided between the scissor-type folding bracket and the connecting plate.

[0014] Preferably, the remote control handle has an indicator light A and an indicator light B, the indicator light A is used to feedback the power status of the remote control handle itself, and the indicator light B is used to feedback the power supply status of the motor.

[0015] Preferably, a power supply box is provided inside the housing, and the power supply box is used to draw power from the insurance of the car and supply power to the motor.

[0016] Compared with related technologies, the snow brake assist system provided by the present invention has the following beneficial effects: This device is mostly used on icy and snowy roads, and the scattered sand and gravel are cleared together with the snow clearing work of the road maintenance department, so the harm to the environment can be controlled; the sand and gravel scattered by this device in icy and snowy weather will not cause dust hazards due to the problem of snow on the road (the sand and gravel are embedded in the icy and snowy road surface after being crushed by the car), and the environmental harm can be controlled; this device is a brake assist device, which assists the car's braking by gently and indirectly providing additional friction. Compared with the "anti-skid chain", this device does not damage the road surface; considering that the ice and snow on the road cannot be cleared in time in winter, after the first car uses the brake assist device, the sand and gravel remaining on the road can still provide additional friction for subsequent vehicles at the same position, effectively reducing the accident rate on regional roads; this device is a brake assist device, which can effectively reduce traffic accidents caused by slipping and sliding on icy and snowy roads, reduce the losses of car owners, and improve social public safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the structure of the housing provided by the present invention and its assembly with the vehicle; Figure 2 This is a schematic structural diagram of the housing shown in the present invention from the front; Figure 3 This is a schematic structural diagram of a housing shown in the present invention from a top view; Figure 4 This is a schematic structural diagram of the housing of the present invention when viewed from above; Figure 5 It is a structural schematic diagram of the left side view of the housing shown in the present invention; Figure 6 It is a structural schematic diagram of the right side view of the housing shown in the present invention; Figure 7 This is a schematic structural diagram of the feeding assembly and the housing shown in the present invention; Figure 8 The present invention shows Figure 7 A schematic diagram of the structure of the feeding device in the extended state; Figure 9 This is a structural diagram of the end cover and the housing shown in the present invention; Figure 10 Schematic diagram of the structure of the feed port shown in the present invention; Figure 11 This is a schematic structural diagram of the feeding device shown in the present invention. Figure 1 ; Figure 12 This is a schematic structural diagram of the feeding device shown in the present invention. Figure 2 ; Figure 13 It is a structural schematic diagram of the dividing knife shown in the present invention.

[0018] Numbers in the figure: 1. Shell; 11. Discharge end; 12. Dividing knife; 13. End cover; 14. Dust exhaust port; 15. Reinforcement plate; 2. Clamping assembly; 3. Feeding port; 31. Screw rod; 32. Cover plate; 33. Positioning plate; 34. Dovetail nut; 4. Feeding assembly; 41. Motor; 42. Single screw rod; 43. Slider; 44. Scissor-type folding bracket; 45. Connecting plate; 46. Base steel plate; 47. Surface rubber; 48. Balance spring. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0020] The specific implementation of the present invention is described in detail below with reference to specific embodiments.

[0021] See also Figures 1 to 13 The snow brake assist system provided by the embodiment of the present invention includes a housing 1, a clamping assembly 2, a feeding assembly 4, a remote control handle and a power box; The shell 1 contains sand and gravel.

[0022] It should be noted that this device changes the icy and snowy road conditions into a mixed road of gravel, ice and snow by spreading sand and gravel (the functional description of this device uses "sand and gravel" as an example; in actual use, the device can be modified accordingly based on the applicable scenario or needs), providing supplementary friction and providing a gentle braking assist function for the car. Specific practice has shown that: (1) Theoretically, for a car with a total mass of less than 4.5 tons, the reference braking distance is generally 2.3 meters at a speed of 20 kilometers per hour; (2) Considering that this device is used on icy and snowy roads, the friction coefficient between the tire and the ground is generally 0.02 to 0.1; (3) Considering that this device changes the icy and slippery road condition into a gravel-filled state by spreading gravel, the friction coefficient is generally 0.3-0.4; that is, this device should be considered based on a braking distance of 4 meters under normal circumstances. Considering insufficient braking, the braking distance should be considered based on a braking distance of 6 meters (50% redundancy). Regarding the sand and gravel used: (1) Considering that the width of the sand and gravel splashing / freely scattered after being splashed by this device is about 30 cm, the density of the splashing / freely scattered sand and gravel is about 50%, and the average thickness of the sand and gravel is 5 mm; (2) The device is installed on the bottom of the vehicle, between the front axle / front wheel and the rear axle / rear wheel, or on the side beam. It is usually installed at the vehicle jack mounting point (the location where the jack is supported, or other locations on the bottom of the vehicle or side beam where the device can be installed) by fastening screws and clamping components 2, serving as the main connection and fixing position between the device and the vehicle. (3) This device is usually used with two at the same time, one at the bottom of the left side beam and one at the bottom of the right side beam of the car; that is, the gravel loading capacity of this device should be considered as ≈6×0.3×0.005×50%=0.0045m 3 ; (4) Consider using honeycomb pressed sand and gravel (the inspiration comes from "rice candy", using slag or sand and gravel with a particle size of 5 to 10 mm, adding chelating agents, and pressing in a mold). In special cases, sand and gravel can be collected from the roadside, filtered out the powder, and sprayed with a small amount of water before being loaded into the silo for emergency use as pressed sand and gravel; (5) Considering the situation of ineffective spillage, the sand and gravel loading capacity is considered to have 10% redundancy, and the compaction density is considered to be about 90% (to ensure looseness); that is, the single loading capacity of sand and gravel is not less than 0.006 cubic meters, which is converted into a storage compartment with a net space of 100cm×20cm×3cm.

[0023] Regarding the placement and dosage of sand and gravel: (1) Before the sand and gravel are put into the silo, a small amount of water needs to be sprayed on them. After the sand and gravel with a small amount of water are loaded into the silo, the water vapor in the sand and gravel freezes due to the low temperature of the environment, causing some of the sand and gravel to freeze and clot. Since the hardness after condensation is low due to the small amount of water, it can meet the use conditions of this device (that is, the pressed sand and gravel used in this equipment can be made by oneself, and the homemade method is simple and the homemade cost is low). If the amount of water sprayed is too much due to user operation error, the excess water is deposited at the bottom of the device, and the feeding component 4 can filter the sand and gravel that cannot be discharged to avoid the device from being stuck and unable to work; if the amount of water sprayed is too much due to user operation error, the motor 41 overload protection will be activated to avoid the device from burning; (2) The device is installed at the bottom of the car, between the front and rear wheels, and the pressed sand and gravel are completely filled in the silo, leaving no room for shaking; (3) The recommended size of pressed sand and gravel should be less than 10cm×20cm×3cm or larger than 5cm×5cm×3cm.

[0024] Through actual testing, we know that: (1) The anti-slip distance of this device in the direction of slope is generally the distance from the discharge port to the front wheel of the car, that is, the maximum distance is generally not more than 2.5 meters. Considering that car drivers generally keep a long distance from the car in winter (generally not less than 5 meters), the anti-slip energy supply of this device is feasible; (2) The brake assist of this device acts on the rear tires in the direction of travel of the car, so that the rear tires of the car form brake traction, which can effectively prevent the car from skidding due to the "push head" of the car; (3) The ground clearance of a general car is not less than 10 cm. This device is installed between the front axle / front wheel and the rear axle / rear wheel of the car. After deducting the overlapping height of the clamping device and the original edge strip at the bottom of the car side beam, this device is expected to sacrifice 4 cm of the car's ground clearance for the installation of this device; (4) For vehicles with a smaller wheelbase (front wheel / front axle, rear wheel / rear axle spacing), this device can be shortened in its longitudinal length to adapt to the corresponding vehicle model by sacrificing the minimum ground clearance; (5) This device is installed at the bottom of the car's side beam. Although it sacrifices part of the car's ground clearance, it provides protection for the car's side beam in disguise, thereby improving the car's safety. Because this device is installed between the car's front axle / front wheel and rear axle / rear wheel, it does not sacrifice the car's front approach angle and rear departure angle, nor does it sacrifice the car's climbing performance. (6) This device is mostly used on icy and snowy roads. The scattered gravel is cleared along with the snow removal work of the road maintenance department, and the harm to the environment is controllable. The gravel scattered by this device in icy and snowy weather does not cause dust hazards due to the problem of snow on the road (the gravel is embedded in the icy and snowy road after being crushed by the car), and the environmental harm is controllable. This device is a brake assist device, which assists the car in braking by gently and indirectly providing additional friction. Compared with the "anti-skid chain", this device does not damage the road surface. Considering that the ice and snow on the road cannot be cleared in time in winter, after the first car uses the brake assist device, the gravel remaining on the road can still provide additional friction for subsequent vehicles at the same position, effectively reducing the accident rate of regional sections. This device is a brake assist device, which can effectively reduce traffic accidents caused by slipping and sliding on icy and snowy roads, reduce the losses of car owners, and improve social public safety. For remote controller and power box; The remote control handle can be presented in the form of a remote control key, pedal, etc. according to user needs. It issues work instructions to the driving source in the feeding component 4 of the device through wired control or wireless remote control. The remote control handle has a built-in power indicator light. Indicator light A feedbacks the power status of the remote control key. When the power is low, the indicator light flashes red, indicating insufficient power; indicator light B feedbacks the power status of the driving source in the feeding component 4 and provides a fault indication of the device when the overload protection or surge protector breaks down; The power box is used to draw power from the fuse box of the car. It has a built-in overload protection device to protect the driving source in the feeding component 4 from burning due to device failure, thereby reducing the expansion of device failure; the overload protection device is built into the power box and can be reset by cutting off the power, or the overload protection device can be reset manually by opening the power box; the power box is equipped with surge protectors, fuses and other protection devices to prevent damage to the device due to current surges caused by vehicle failure, external power supply access, lightning strikes, etc.; the power box casing is dustproof and waterproof (IP65), and is made of fire-resistant material to prevent short-circuit failures caused by water entering the power box due to vehicle engine compartment cleaning, vehicle wading, etc., or open flame accidents caused by breakdown of the surge protector or overload protector (the power box casing is made of fire-resistant material and the casing is sealed, open flames do not have combustion conditions, thereby avoiding the expansion of accidents).

[0025] For shell 1; See also Figures 2 to 6 The shell 1 is a rectangular box body, which is arranged along the long axis of the car and has a content space inside. The end of the shell 1 close to the rear wheel of the car is the discharge end 11. The plate body at the discharge end 11 in the shell 1 is arranged obliquely. A plurality of linearly distributed dividing knives 12 for crushing sand and gravel are fixed between the plate body, the top of the shell 1 and the bottom of the shell 1. The thickness of the dividing knife 12 is 1mm, and the connection length with the top of the shell 1 is 5mm, and the connection length with the bottom of the shell 1 is 10mm. A reinforcing plate 15 is fixed at the lower end of the shell 1 and near the discharge end 11. The end of the shell 1 opposite to the discharge end 11 has an opening, and an end cover 13 is bolted to the opening to close the opening. A dust outlet 14 is also provided at the lower end of the shell 1 and near the opening.

[0026] It should be noted that the housing 1 has an opening at one end, which is a maintenance port. The end cover 13 is fixed to the housing 1 by bolts, so it can be disassembled. After disassembly, the various components inside the housing can be inspected and repaired. The dividing knife 12 is composed of several groups of blades with a thickness of 1 mm, and the spacing between them is generally not less than 2 cm to prevent the occurrence of "material blocking" and "material jamming". When the push plate moves toward the dividing knife 12, the agglomerated sand and gravel are crushed and discharged from the device through the dividing knife 12. It is mainly used for the preliminary crushing of pressed sand and gravel. After the initially crushed pressed sand and gravel are discharged by the device, they are broken for the second time due to the height difference when they come into contact with the icy ground, or fall into the snow in the form of large particles to provide additional friction resistance for the tire; the blade extends toward the inside of the device, that is, toward the inside of the silo, and the dividing knife 12 ensures a connection length of 5 mm with the top of the shell 1 and a connection length of 10 mm with the bottom of the shell 1. By reducing the approach angle with the pressed sand and gravel, the crushing resistance between the dividing knife 12 and the pressed sand and gravel is reduced to ensure the crushing efficiency of the dividing knife 12 on the pressed sand and gravel; When the vehicle needs to replace the spare tire, the vehicle jack can be directly supported on the dividing knife 12. The dividing knife 12 (at the bottom of the shell 1) is provided with a reinforcing plate 15. The supporting force of the jack is evenly distributed to each group of dividing knives 12 through the reinforcing plate 15. The dividing knife 12 then transmits the supporting force to the clamping assembly 2 through the shell 1 and then to the side beam of the vehicle, so that the vehicle can still be jacked up by the jack after the installation of the device to complete the spare tire replacement work; or through the special "Z"-shaped clamping device, the dividing knife 12 of the device can be avoided from the original jack setting position of the vehicle to ensure that the vehicle can be normally jacked up by the jack; During the pushing out / retracting process of the feeding assembly 4 , the dust exhaust port 14 discharges some of the fine, powdery impurities that have invaded and accumulated at the feeding assembly 4 , thereby reducing the possibility of failure of the feeding assembly 4 due to the accumulation of impurities.

[0027] See also Figure 10 A feeding port 3 communicating with the content space is provided on one side of the shell 1. The feeding port 3 is located close to the opening, and screw rods 31 vertically welded to the shell 1 are provided on both sides of the feeding port 3. The feeding port 3 is closed by a cover plate 32 , and a positioning plate 33 is integrally connected to the side of the cover plate 32 . The positioning plate 33 can be sleeved on the screw rod 31 and fixed by a dovetail nut 34 to stabilize the cover plate 32 on the shell 1 .

[0028] It should be noted that the feeding port 3 is an L-shaped structure (refer to the shape of the angle steel), and the cover plate 32 at the opening is installed by fastening screws through a dovetail nut 34. The feeding port 3 is set on one side of the device and is used to add pressed sand and gravel to the device.

[0029] For the clamping component 2; See also Figure 5 and Figure 6The clamping assembly 2 is a long, groove-shaped clamp, which is arranged along the length direction of the shell 1 and welded to the top of the shell 1. The clamp has holes for installing bolts and can be installed at the lower end of the car by bolts, and is located between the front axle and the rear axle of the car.

[0030] It should be noted that the clamping assembly 2 is a groove-shaped clamp, which is welded to the upper end of the housing 1 and fixed to the vehicle body by bolts to ensure the stability of the housing 1; During the actual use of the device, appropriate types of clamps can be used according to different vehicle models. When the vehicle needs to remove the device, the user can use tools (wrench) to disassemble the device at will to meet the user's usage needs.

[0031] As for the feeding assembly 4, it is composed of a telescopic component and a push plate; See also Figure 11 The telescopic component includes a motor 41, which is fixed inside the housing 1 and close to the opening and in direct contact with the housing 1. The output end of the motor 41 is fixed to a single screw rod 42 through a coupling. The other end of the single screw rod 42 is rotatably mounted on the inner wall of the housing 1. A slider 43 that moves along the axial direction is also mounted on the single screw rod 42. A scissor-shaped folding bracket 44 that can be extended and retracted along the length direction of the housing 1 is installed on the side of the motor 41 and the slider 43.

[0032] It should be noted that: in the telescopic component, the motor 41 can drive the single screw rod 42 to rotate, thereby driving the slider 43 to move, and the movement of the slider 43 can drive the scissor-shaped folding bracket 44 to extend and retract; The motor 41 is built into the housing 1, which helps protect the motor 41 from damage such as splashing water, freezing, and splashing sand and gravel. The device housing 1 can provide a relatively stable working environment. The motor 41 is fully enclosed. The heat dissipation of the motor 41 is achieved through close contact between the outer shell and the device housing 1, and heat conduction is used to cool the motor 41. This ensures that the motor 41 is not damaged by water erosion when immersed in water for a short time. In order to ensure that the device has sufficient torque to discharge the sand and gravel in the silo through the dividing knife 12, the motor 41 cooperates with the single screw rod 42 and the slider 43, and uses the housing 1 of the device as a limit device to drive the scissor-shaped folding bracket 44 to extend or shorten. When the motor 41 works, it drives the coaxial single screw rod 42 to rotate. The rotating single screw rod 42 drives the slider 43 to move along the axis of the single screw rod 42, thereby driving the scissor-shaped folding bracket 44 to work. The motor 41 is equipped with a single screw rod 42 and a slider 43, with a limit switch configured on the slider 43. When the motor 41 is operating, the slider 43 moves, causing the scissor-shaped folding bracket 44 to extend or shorten. A limit switch is provided on the slider 43 at the corresponding extension or shortening limit of the scissor-shaped folding bracket 44. This prevents the scissor-shaped folding bracket 44 from reaching its limit, causing the single screw rod 42 to stop driving the slider 43 to continue moving, resulting in the coaxial motor 41 being unable to continue rotating / operating, thereby triggering an overload on the motor 41 and causing equipment failure or damage. Depending on the application scenarios of the device, a pendulum can be added to the motor 41. During the operation of the motor 41, the rotation speed of the pendulum is increased through the gear set to form high-frequency vibration. The high-frequency vibration effect of the pendulum can improve the device's effects on crushing sand and gravel in the silo, preventing sand and gravel from compacting, and preventing sand and gravel from getting stuck, and further improve the crushing effect of the dividing knife 12 on pressed sand and gravel.

[0033] See also Figure 12 The push plate includes a base steel plate 46, which is slidably connected to the inside of the shell 1. A connecting plate 45 is welded and fixed on one side of the base steel plate 46. The connecting plate 45 is connected to the scissor-shaped folding bracket 44. A surface rubber 47 is bonded and fixed on the other side of the connecting plate 45. Each side of the surface rubber 47 is in contact with the inner wall of the shell 1. A balancing spring 48 is further provided between the scissor-type folding bracket 44 and the connecting plate 45 .

[0034] It should be noted that the push plate is located inside the housing and is connected to the scissor-shaped folding bracket 44 through the connecting plate 45 and the balance spring 48. Driven by the scissor-shaped folding bracket 44, it moves along the longitudinal axis inside the housing 1, and can push the pressed sand and gravel loaded in the housing 1 out of the silo; the balance spring 48 is used to balance the uneven pressure on the left and right sides of the push plate to prevent the push plate from tipping over due to uneven pressure, and has the functions of limiting and equalizing pressure energy supply; The push plate is composed of a connecting plate 45, a base steel plate 46, and a surface rubber 47. The base steel plate 46 ensures the strength of the push plate, and the surface rubber 47 ensures the sealing and lubrication of the push plate, thereby preventing the push plate from getting stuck due to fine, powdery impurities getting stuck in the gap between the push plate and the shell 1, or the possibility of malfunction of the device due to slight deformation of the shell 1.

[0035] In addition, the charging process of the device is increased: (1) Before use, check whether the remote control handle has electricity, whether the feeding component 4 responds after operating the remote control handle, and whether the telescopic parts and the push plate are working normally through the outlet of the press sand and gravel at the dividing knife 12 (whether the press sand and gravel can be discharged normally, and whether the self-made press sand and gravel can be prevented from freezing in the silo and causing the device to malfunction, etc.), and check whether there are any obstacles such as ice and snow attached to the dust outlet 14 and the dividing knife 12 that affect the normal operation of the device; (2) Filling of pressed sand and gravel: Use the remote control handle to fully retract the telescopic component (retract the push plate), unscrew the dovetail nut 34 counterclockwise to remove the cover plate 32 at the feeding port 3, and insert the pressed sand and gravel into the feeding port 3. Each time a piece of pressed sand and gravel is loaded, the operating device pushes the loaded pressed sand and gravel toward the dividing knife 12. When there is sufficient space at the feeding port 3, load the pressed sand and gravel again. Repeat this process until sand and gravel debris falls from the dividing knife 12, indicating that the silo is full. Or after filling an appropriate amount of pressed sand and gravel, use the remote control handle to extend the telescopic component to move the push plate toward the dividing knife 12 until sand and gravel debris falls from the dividing knife 12, then stop the operation. This method is suitable for silo filling operations when there is insufficient pressed sand and gravel. (2.1) Bulk sand and gravel filling: Use the remote control handle to fully retract the telescopic component (retract the push plate), place the sand and gravel with the particle size that meets the requirements of this device in a container (basin or plastic bag, etc.), spray a small amount of water, and gently stir until the sand and gravel are slightly moist (no water droplets gather in the sand and gravel when standing still, no water accumulation / retention in the container, and no water droplets fall when the sand and gravel is placed in the hand), unscrew the dovetail nut 34 counterclockwise to remove the cover 32 at the feeding port 3, and you can use a square paper box or cardboard to hold the sand and gravel, align the paper box or cardboard with the feeding port 3, and use tools (branches, sticks, etc.) to stir the sand and gravel. , wrenches, keys, mobile phone cases, etc.) fill the sand and gravel into the silo of the device through the feeding port 3. After compaction, the operating device pushes the filled sand and gravel toward the dividing knife 12 once. When there is sufficient space at the feeding port 3, fill the sand and gravel again, and repeat this process until sand and gravel debris falls from the dividing knife 12, which indicates that the silo is full. Or after filling in an appropriate amount of sand and gravel, extend the telescopic device through the remote control handle to move the push plate toward the dividing knife 12 until sand and gravel debris falls from the dividing knife 12, and then stop the operation. This method is suitable for silo filling operations when sand and gravel are insufficient. (2.2) Silo filling: After each silo filling operation is completed, the device should be operated to push the filled sand and gravel toward the dividing knife 12 until the sand and gravel fragments fall evenly at the dividing knife 12, ensuring that there is no idle space in the silo (the silo volume ratio is greater than 95%). This prevents the compressed sand and gravel from being knocked and broken in the silo due to ample space in the silo and the bumps during driving of the car, and then leaking from the dividing knife 12, resulting in no sand and gravel available when the device is needed; Troubleshooting (1) If the battery of the remote control handle of the operating device is low, please replace the battery or use the car USB charging port to charge; (2) If the motor 41 fails, restore the motor 41 by powering off and resetting it; if the motor 41 cannot be restored after powering off and resetting it, please go to a maintenance center for repair; (3) If the telescopic parts are damaged violently due to the motor 41 not being able to trip due to overload, please go to the maintenance center for repair; (4) The rubber 47 on the push plate surface is not sealed tightly, causing sand and gravel to invade the telescopic device space. The sand and gravel can be discharged through the dust outlet 14. If the dust outlet 14 is blocked and the telescopic device cannot be retracted, please clean the dust outlet 14. (5) If the push plate flips due to the fall of the push plate balance spring 48, the telescopic component can be retracted and the push plate can be placed in the initial position of the device (fully retracted position). The push plate will automatically reset (the flipped state is restored). A small amount of sand and gravel can be added through the feeding port 3 to fill the silo with sand and gravel again, thereby alleviating the degree of the push plate flipping failure and promptly repairing it at the maintenance point. (6) If the motor 41, telescopic components, and push plate are all working properly, but no sand or gravel falls from the dividing knife 12, it means that the sand and gravel in the silo are compacted or the silo is deformed. If the silo is compacted, the compacted sand and gravel in the silo can be broken / crushed by knocking (mostly occurs in the case of homemade pressed sand and gravel). Mild deformation of the silo can be overcome by the push plate surface rubber 47, and the silo should be repaired as soon as possible. If the silo is severely deformed, please go to a maintenance point for repair as soon as possible. (7) If the motor 41, telescopic components and push plate can all work normally, but no sand and gravel fall from the dividing knife 12, and there is obvious "material blockage" at the dividing knife 12 (mostly occurs in homemade pressed sand and gravel), you can retract the telescopic device (make the push plate retreat, make room for the discharge bin, and provide space for troubleshooting), and use a hard stick (such as a screwdriver / screwdriver, a wrench with a thinner handle, etc.) to clear the "material blockage" at the dividing knife 12, thereby eliminating the fault; The design ideas for the entire device: (1) In order to reduce the failure rate of the device and to reduce the complexity of the structure and the device, the device is composed of only three major components: the motor 41, the telescopic component, and the housing 1. No silo outlet gate is provided, and the device is self-sealed only by the weak strength structure of the pressed sand and gravel itself or the weak strength structure of the slightly moist bulk sand and gravel after freezing (hardening); (2) Considering the situation where snow and ice form in winter or ice forms on the bottom of the car after snow melts on the surface, the silo outlet gate is not used (to prevent the gate from freezing and being unable to open, causing the device to fail to work); the existing distribution knife 12 structure makes the ice and snow adhesion area insufficient, resulting in insufficient ice and snow adhesion strength. In the case of light ice and snow adhesion, the sand and gravel can smoothly break the ice and snow adhered at the outlet of the distribution knife 12 from the inside under the work of the motor 41, that is, the adhered ice and snow does not affect the use of the device; (3) It is recommended that metal materials be used for the main components of this device. If there are lighter, stronger, and tougher materials with weaker low-temperature brittleness characteristics, new materials can be used to make this device; (4) The motor 41 is powered by a cable from the car fuse box; (5) The shape of the remote control device can be presented in the form of a remote control key, pedal, etc. according to user needs to meet user needs; (6) The brake assist device can be activated by a remote control device, or the vehicle's "ABS" action signal can be intercepted for 3 consecutive seconds to trigger the brake assist system to start. It can be configured according to user needs; (7) The operation of the device is firstly carried out by issuing a command through the remote control device, and the motor 41 is energized. The motor 41 works to drive the single screw 42 to rotate. The rotating single screw 42 drives the slider 43 to move along the axis of the single screw 42, thereby driving the telescopic component to work. The telescopic component extends, driving the push plate to move toward the dividing knife 12, pushing the sand and gravel in the hopper toward the dividing knife 12. The sand and gravel in the hopper encounter the dividing knife 12 and are crushed by the squeezing force of the push plate. The crushed sand and gravel are discharged from the device through the gap of the dividing knife 12. Due to the height difference, the sand and gravel are broken (secondary crushing) at the moment they fall to the ground and are crushed by the tires of the moving vehicle. In the process of the sand and gravel being crushed by the tires, additional auxiliary friction is provided to the tires, thereby improving the grip of the vehicle tires.

[0036] The above are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention description and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. Snow brake assist system, characterized in that: include: A housing (1), the housing (1) being a rectangular box body, arranged along the longitudinal axis of the vehicle, having a content space therein, an end of the housing (1) close to the rear wheel of the vehicle being a discharge end (11), and a feeding port (3) communicating with the content space being further provided on one side of the housing (1); A clamping assembly (2), the clamping assembly (2) being fixed to the upper end of the housing (1) and being used to mount the housing (1) on the bottom of the vehicle; A feeding assembly (4), the feeding assembly (4) is installed in the content space inside the housing (1), and is composed of a telescopic component and a push plate. The telescopic component can drive the push plate to move along the length direction of the housing (1), and the space between the push plate and the discharge end (11) is a silo for storing sand and gravel. The push plate can be used to push the sand and gravel out of the discharge end (11), and the discharged sand and gravel is located in front of the moving direction of the rear wheels of the vehicle; A remote control handle is connected to the feeding assembly (4) by signal, thereby realizing remote control of the feeding assembly (4).

2. The snow brake assist system according to claim 1, characterized in that: The plate at the discharge end (11) of the shell (1) is tilted, and a plurality of linearly distributed dividing knives (12) for crushing sand and gravel are fixed between the plate, the top of the shell (1) and the bottom of the shell (1). The dividing knives (12) are 1 mm thick, have a connection length of 5 mm with the top of the shell (1) and a connection length of 10 mm with the bottom of the shell (1); A reinforcing plate (15) is fixed at the lower end of the shell (1) and near the discharge end (11). The end of the shell (1) opposite to the discharge end (11) has an opening, and an end cover (13) is fixed to the opening by bolts to close the opening. A dust outlet (14) is also provided at the lower end of the shell (1) and near the opening.

3. The snow brake assist system according to claim 1, characterized in that: The clamping assembly (2) is a long, grooved clamp, which is arranged along the length direction of the shell (1) and is welded and fixed to the top of the shell (1). The clamp has holes for installing bolts and can be installed on the lower end of the car by bolts.

4. The snow brake assist system according to claim 3, characterized in that: The housing (1) is installed at the lower end of the vehicle between the front axle and the rear axle of the vehicle.

5. The snow brake assist system according to claim 1, characterized in that: The feeding port (3) is located close to the opening, and screw rods (31) vertically welded to the housing (1) are provided on both sides of the feeding port (3); The feeding port (3) is closed by a cover plate (32), and the side of the cover plate (32) has an integrally connected positioning plate (33). The positioning plate (33) can be sleeved on the screw rod (31) and fixed by a dovetail nut (34) to stabilize the cover plate (32) on the housing (1).

6. The snow brake assist system according to claim 1, characterized in that: The telescopic component includes a motor (41), the motor (41) is fixed inside the housing (1) and close to the opening, and is in direct contact with the housing (1), the output end of the motor (41) is fixed to a single screw rod (42) via a coupling, the other end of the single screw rod (42) is rotatably mounted on the inner wall of the housing (1), and a slider (43) is also mounted on the single screw rod (42) that moves along the axial direction; A scissor-shaped folding bracket (44) that can be extended and retracted along the length direction of the housing (1) is installed on the side of the motor (41) and the slider (43).

7. The snow brake assist system according to claim 6, characterized in that: The push plate includes a base steel plate (46), the base steel plate (46) is slidably connected to the inside of the shell (1), a connecting plate (45) is welded and fixed on one side of the base steel plate (46), the connecting plate (45) is connected to the scissor-shaped folding bracket (44), and a surface rubber (47) is bonded and fixed on the other side of the connecting plate (45), and each side of the surface rubber (47) is in contact with the inner wall of the shell (1).

8. The snow brake assist system according to claim 7, characterized in that: A balance spring (48) is also provided between the scissor-type folding bracket (44) and the connecting plate (45).

9. The snow brake assist system according to claim 1, characterized in that: The remote control handle is provided with an indicator light A and an indicator light B, wherein the indicator light A is used to provide feedback on the power status of the remote control handle itself, and the indicator light B is used to provide feedback on the power supply status of the motor (41).

10. The snow brake assist system according to claim 1, characterized in that: A power supply box is provided inside the housing (1), and the power supply box is used to draw power from the fuses of the vehicle and to supply power to the motor (41).

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