Double track limiting auxiliary brake device based on fixed pulley set

Abstract

The utility model discloses a double -track limiting auxiliary brake device based on fixed pulley set, including stepping motor, installation support, steel wire rope, clamping plate, first fixed pulley and second fixed pulley, first fixed pulley and second fixed pulley all rotatable installation is in installation support, all be equipped with recess on first fixed pulley and second fixed pulley, and steel wire rope passes through between recess on first fixed pulley and recess on second fixed pulley, and the first end of steel wire rope is connected with stepping motor, and the second end of steel wire rope is fixedly connected with clamping plate, and clamping plate clamps tightly fixed on pedal support. The utility model discloses can limit the position of steel wire rope through first fixed pulley and second fixed pulley, realizes the steel wire rope to pull brake support, makes its limit effect good, long service life, and maintenance is simple, and the multi -angle force of being convenient for steel wire rope to change direction is realized, and the design of double pulley avoids the derailment of steel wire rope, and increases the stability of movement, and installation support is fixed on the car body, and makes the connecting structure more stable.

Description

Technical Field

[0001] This utility model relates to the field of traffic safety, and in particular to a double-rail limit auxiliary braking device based on a fixed pulley system. Background Technology

[0002] In the current urban transportation system, ride-hailing vehicles and commercial freight vehicles are the core force ensuring citizens' travel and the transportation of urban goods. Their driving safety is directly related to road traffic order and the safety of public life and property. However, influenced by their operating models and profit-seeking, these vehicles generally face high-intensity transportation task pressure: ride-hailing vehicles often take on consecutive orders and reduce rest time to improve order completion efficiency; commercial freight vehicles frequently rush to pick up goods due to time constraints. Against this backdrop, violations such as fatigued driving, distracted driving, speeding lane changes, and failure to yield to pedestrians are rampant, becoming the main causes of forward collisions on urban roads. According to statistics from the transportation department, in the past three years, forward collisions caused by the aforementioned violations by ride-hailing vehicles and commercial freight vehicles have accounted for a disproportionately large share of urban road accidents, not only causing numerous casualties and property losses but also seriously disrupting the rhythm of urban traffic. To ensure driver safety and reduce collision risks, the development of a dual-rail limit auxiliary braking device based on a fixed pulley system has become a key requirement for solving current urban road traffic safety problems. Summary of the Invention

[0003] The purpose of this invention is to construct a dual-rail limit auxiliary braking device based on a fixed pulley system, based on the existing braking assistance device and the need to ensure driver safety and reduce collision risk.

[0004] A dual-rail limiting auxiliary braking device based on a fixed pulley system is characterized by comprising a mounting bracket, a wire rope, a clamping plate, a first fixed pulley, and a second fixed pulley. Both the first and second fixed pulleys are rotatably mounted on the mounting bracket. Each of the first and second fixed pulleys has a groove. The wire rope passes between the grooves on the first and second fixed pulleys. The first end of the wire rope is connected to a stepper motor, and the second end of the wire rope is fixedly connected to the clamping plate. The clamping plate is clamped and fixed to a pedal bracket (the pedal bracket is a structure used to fix the brake pedal, ensuring the stability and safety of the brake pedal during use). This design facilitates changing the direction of the wire rope to achieve multi-angle force application, while the dual-pulley design prevents the wire rope from derailing, increasing motion stability.

[0005] Compared to existing brake assist devices that use fixed pulleys and curved alloy components (made of small-diameter cylindrical alloy parts) to restrict the position of the steel cable, and which are fixed to the car by a long handle, this brake assist device structure has several drawbacks. Firstly, because it is fixed to the car by a handle at one end, the position of the brake assist device can shift during operation. This shift depends on the handle's strip-like structure and its material. Secondly, the curved alloy component is susceptible to deformation, resulting in poor restraint and a shorter lifespan, requiring frequent maintenance.

[0006] Furthermore, only one steel wire rope can pass through the groove on the first fixed pulley and the groove on the second fixed pulley.

[0007] Furthermore, the mounting bracket includes a base plate and two upright plates, which are arranged on both sides of the installation path of the wire rope and are symmetrical to each other. The first fixed pulley and the second fixed pulley are both vertically arranged between the two upright plates. The base plate is provided with a number of mounting holes, and the mounting bracket is fixedly installed by a number of screws that cooperate with the mounting holes.

[0008] The mounting bracket can be directly fixed to the vehicle or fixed to the vehicle via a handle. The difference is that direct fixing requires corresponding mounting holes or drilling into the vehicle; while fixing via a handle utilizes existing mounting holes, but the connection structure is less stable. Therefore, direct fixing to the vehicle is preferred.

[0009] Furthermore, the base plate has three mounting holes, and the mounting bracket is fixedly installed by screws that mate with the mounting holes. The three mounting holes are distributed in a triangular pattern around the bracket for fixing the car body or handle. The triangular arrangement improves stability while making the bracket smaller and more flexible to install.

[0010] Furthermore, the mounting bracket also includes a fixing plate with fixing holes. A protective sleeve is provided on the outside of the wire rope. One end of the protective sleeve is fixed to the fixing hole of the mounting bracket, and the other end passes through the fixing hole and is fixed to the stepper motor. The wire rope can move inside the protective sleeve.

[0011] Furthermore, the diameter of the first fixed pulley is much larger than that of the second fixed pulley, and the height at which the rotation center of the first fixed pulley is set is higher than that of the rotation center of the second fixed pulley. This makes it easier to pull the brake bracket with the wire rope.

[0012] Furthermore, the clamping plate includes a front clamping plate, a rear clamping plate, and fixing bolts. The front clamping plate and the rear clamping plate are respectively disposed on the front and rear sides of the brake bracket (with the side of the brake bracket closer to the driver as the front and the side opposite to the driver as the rear), and are fixed to the brake bracket by bolts disposed at both ends.

[0013] Furthermore, the clamp is positioned lower on the brake bracket. This is to maintain a large angle between the pullback direction of the steel cable and the depressor direction of the brake bracket to achieve vehicle braking, reducing the offset of the steel cable pullback force. Moreover, when the steel cable has a large extension stroke, the braking mechanism reacts faster, has more flexible braking force, and a longer service life.

[0014] The beneficial effects of this utility model are as follows: The dual-rail limiting auxiliary braking device based on fixed pulley blocks disclosed in this application can limit the position of the wire rope through the cooperation of the first and second fixed pulleys, so that the wire rope can pull the brake bracket. This effectively avoids the deformation possibility of traditional curved alloy parts, resulting in better limiting effect, longer service life, simple maintenance, and easy change of direction of the wire rope to achieve multi-angle force application. At the same time, the dual pulley design prevents the wire rope from derailing and increases motion stability. The mounting bracket can be directly fixed to the car body, making the braking mechanism more secure and the connection structure more stable.

[0015] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this invention more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Figure 1 This is a schematic diagram of the application structure of a specific example of the auxiliary braking device of this utility model; Figure 2 This is a schematic diagram of the mounting bracket in a specific example of the auxiliary braking device of this utility model; Figure 3 This is a front view of a specific example of the auxiliary braking device of this utility model; Figure 4 This is a left view of a specific example of the auxiliary braking device of this utility model; Figure 5 This is a bottom view of a specific example of the auxiliary braking device of this utility model. Detailed Implementation

[0017] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model 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 merely illustrative of the present utility model and are not intended to limit the present utility model.

[0018] The auxiliary braking mechanism of this utility model will be further described with reference to the accompanying drawings.

[0019] like Figures 1-5 As shown, the auxiliary braking device described in this embodiment includes a stepper motor, a mounting bracket 400, a wire rope 302, a clamping plate 303, a first fixed pulley 305, and a second fixed pulley 306. The mounting bracket 400 is an integrally formed structure, including a base plate and two upright plates. The upright plates are vertically arranged and there are two upright plates. The two upright plates are symmetrically positioned. Each of the two upright plates is provided with two first wire rope observation holes 310. When repairing or replacing the wire rope, the operation is carried out through the first wire rope observation holes 310, making the operation more convenient.

[0020] The two uprights are also provided with two fixed pulley mounting holes, namely a first fixed pulley mounting hole 308 for mounting the first fixed pulley 305 and a second fixed pulley mounting hole 309 for mounting the second fixed pulley 306. The positions of the first fixed pulley mounting holes 308 and the second fixed pulley mounting holes 309 on the two uprights are one-to-one. The first fixed pulley 305 is rotatably mounted on the mounting bracket 400 through a rotating shaft passing through the two first fixed pulley mounting holes 308, and the second fixed pulley 306 is rotatably mounted on the mounting bracket 400 through a rotating shaft passing through the two second fixed pulley mounting holes 309.

[0021] The base plate is designed with a T-shaped structure and has three mounting holes 307 located at the three ends of the base plate. The mounting bracket 400 is fixedly installed on the car body by screws that mate with the mounting holes 307.

[0022] The base plate is also provided with a second wire rope observation hole 311. When repairing or replacing the wire rope, the operation is carried out by using the first wire rope observation hole 310 and the second wire rope observation hole 311 together, making the operation more convenient.

[0023] The diameter of the first fixed pulley 305 is much larger than the diameter of the second fixed pulley 306, and the height at which the rotation center of the first fixed pulley 305 is set is higher than the height at which the rotation center of the second fixed pulley 306 is set.

[0024] Both the first fixed pulley 305 and the second fixed pulley 306 are provided with grooves. The wire rope 302 passes through the groove between the groove of the first fixed pulley 305 and the groove of the second fixed pulley 306. Only one wire rope 302 can pass through the groove between the groove on the first fixed pulley 305 and the groove on the second fixed pulley 306.

[0025] The first end of the wire rope 302 is connected to the stepper motor, and the second end of the wire rope 302 is fixedly connected to the clamping plate 303. The clamping plate 303 is clamped and fixed on the pedal bracket. The clamping plate 303 is installed at the lower position of the brake bracket. The clamping plate 303 includes a front clamping plate, a rear clamping plate, and fixing bolts. The front clamping plate and the rear clamping plate are respectively set on the front and rear sides of the brake bracket, and the front clamping plate and the rear clamping plate are clamped and fixed on the brake bracket by the bolts set at both ends of the front clamping plate and the rear clamping plate.

[0026] The mounting bracket 400 also includes a fixing plate with fixing holes 312. A protective sleeve 301 is provided around the steel wire rope 302. One end of the protective sleeve 301 is fixed to the mounting bracket 400 at point 312, and the other end is fixed to the stepper motor. The mounting bracket 400 can be directly fixed to a vehicle or fixed to a vehicle via a handle. The difference is that direct fixing of the mounting bracket 400 to the vehicle requires corresponding mounting holes or drilling holes in the vehicle; while fixing the mounting bracket 400 to the vehicle via a handle utilizes existing mounting holes in the vehicle, but the stability of the connection structure is poor. Therefore, in this embodiment, direct fixing to the vehicle is preferred.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A double-rail limiting auxiliary braking device based on a fixed pulley system, characterized in that, The device includes a stepper motor, a mounting bracket, a wire rope, a clamping plate, a first fixed pulley, and a second fixed pulley. Both the first and second fixed pulleys are rotatably mounted on the mounting bracket. Both the first and second fixed pulleys have grooves. The wire rope passes between the grooves on the first and second fixed pulleys. The first end of the wire rope is connected to the stepper motor, and the second end of the wire rope is fixedly connected to the clamping plate, which clamps and fixes the device to the pedal bracket.

2. The double-rail limiting auxiliary braking device based on a fixed pulley system according to claim 1, characterized in that, Only one steel wire rope can pass through the groove on the first fixed pulley and the groove on the second fixed pulley.

3. The double-rail limiting auxiliary braking device based on a fixed pulley system according to claim 1, characterized in that, The mounting bracket includes a base plate and two upright plates. The upright plates are arranged on both sides of the wire rope installation path and are symmetrical to each other. The first fixed pulley and the second fixed pulley are both vertically arranged between the two upright plates. The base plate is provided with a number of mounting holes, and the mounting bracket is fixedly installed by a number of screws that cooperate with the mounting holes.

4. The double-rail limiting auxiliary braking device based on a fixed pulley system according to claim 3, characterized in that, The base plate has three mounting holes, and the mounting bracket is fixedly installed by screws that mate with the mounting holes.

5. The double-rail limiting auxiliary braking device based on a fixed pulley system according to claim 1, characterized in that, The mounting bracket also includes a fixing plate with fixing holes. A protective sleeve is provided on the outside of the wire rope. One end of the protective sleeve is fixed to the fixing hole of the mounting bracket, and the other end passes through the fixing hole and is fixed to the stepper motor. The wire rope can move inside the protective sleeve.

6. The double-rail limiting auxiliary braking device based on a fixed pulley system according to claim 1, characterized in that, The diameter of the first fixed pulley is much larger than that of the second fixed pulley, and the height at which the rotation center of the first fixed pulley is set is higher than that at the height at which the rotation center of the second fixed pulley is set.

7. The double-rail limiting auxiliary braking device based on a fixed pulley system according to claim 1, characterized in that, The clamping plate includes a front clamping plate, a rear clamping plate, and fixing bolts. The front clamping plate and the rear clamping plate are respectively disposed on the front and rear sides of the brake bracket, and are fixed to the brake bracket by bolts disposed at both ends.

8. The double-rail limiting auxiliary braking device based on a fixed pulley system according to claim 1, characterized in that, The clamp is located at the lower part of the brake bracket.

Images