Hydraulic brake device for a fork lift truck

Abstract

The utility model relates to hydraulic brake technology field discloses a hydraulic brake device of fork truck, include: as the connecting main body's pedal support, the both sides fixed connection of pedal support top end have support plate, the inner wall rotationally connected of support plate have brake pin shaft, the outer wall fixed connection of brake pin shaft have brake pedal, the rear end fixed connection of brake pedal have pressure plate, the top end rear side fixed connection of pedal support have support seat, the inner wall fixed connection of support seat have brake master cylinder, the rear end fixed connection of brake pedal have connecting plate, be provided with spring between brake pedal and pressure plate. In the utility model, through stepping on brake pedal, drive brake master cylinder's connecting plate to make brake master cylinder work, brake master cylinder passes on the pressure of hydraulic oil to brake sub pump, thereby makes fork truck stop in short time, especially when fork truck heavy load or high -speed travel, can effectively guarantee brake effect.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic braking technology, and in particular to a hydraulic braking device for a forklift. Background Technology

[0002] Forklifts are the mainstay of material handling equipment and are widely used in various sectors of the national economy, such as railway stations, ports, airports, factories, and warehouses. The performance of their braking systems directly affects operational safety and efficiency. Hydraulic braking devices, with their advantages of rapid response, large and stable braking force, have become the key choice for forklift braking systems and play a crucial role in the safe operation of forklifts.

[0003] Insufficient braking force makes it difficult for the driver to accurately control the speed of the forklift. When it is necessary to slow down or stop, such as when entering or exiting a warehouse, turning, or avoiding pedestrians, the driver cannot reduce the speed in a timely and effective manner, which increases the difficulty and risk of operation and may cause the forklift to lose control and cause an accident. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology and propose a hydraulic braking device for forklifts. By pressing the brake pedal, the connecting plate of the master cylinder is driven to make the master cylinder work. The master cylinder transmits the pressure of hydraulic oil to the brake slave cylinders, thereby stopping the forklift in a short time. Especially when the forklift is heavily loaded or traveling at high speed, it can effectively ensure the braking effect.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A hydraulic braking device for a forklift includes: a pedal support serving as a connecting body; support plates fixedly connected to both sides of the top end of the pedal support; a brake pin rotatably connected to the inner wall of the support plates; a brake pedal fixedly connected to the outer wall of the brake pin; a pressure plate fixedly connected to the rear end of the brake pedal; a support seat fixedly connected to the rear side of the top end of the pedal support; a brake master cylinder fixedly connected to the inner wall of the support seat; a connecting plate fixedly connected to the rear end of the brake pedal; and a spring disposed between the brake pedal and the pressure plate.

[0006] Furthermore, the front end of the master cylinder is rotatably connected to the outer wall of the connecting plate, and an inductive switch is fixedly connected to the inner wall of the brake pedal.

[0007] Furthermore, one end of the spring is connected to the brake pedal, and the other end of the spring is connected to the inner wall of the pressure plate.

[0008] This utility model has the following beneficial effects: In this invention, pressing the brake pedal activates the master cylinder's connecting plate, causing the master cylinder to operate. The master cylinder then transmits hydraulic oil pressure to the brake slave cylinders, allowing the forklift to stop quickly. This is particularly effective when the forklift is heavily loaded or traveling at high speeds, ensuring proper braking performance. Attached Figure Description

[0009] Figure 1 This is an isometric view of a hydraulic braking device for a forklift according to the present invention. Figure 2 This is a rear view of a hydraulic braking device for a forklift according to the present invention. Figure 3 This is a right-end view of a hydraulic braking device for a forklift proposed in this utility model.

[0010] Legend: 1. Pedal support; 2. Brake pedal; 3. Brake pin; 4. Master cylinder; 5. Spring; 6. Sensor switch; 7. Support plate; 8. Connecting plate; 9. Pressure plate; 10. Support base. Detailed Implementation

[0011] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0012] Reference Figures 1-3 An embodiment of this utility model provides a hydraulic braking device for a forklift, comprising: a pedal support 1 serving as the connecting body; support plates 7 fixedly connected to both sides of the top end of the pedal support 1; a brake pin 3 rotatably connected to the inner wall of the support plate 7; a brake pedal 2 fixedly connected to the outer wall of the brake pin 3; a pressure plate 9 fixedly connected to the rear end of the brake pedal 2; a support seat 10 fixedly connected to the rear side of the top end of the pedal support 1; a brake master cylinder 4 fixedly connected to the inner wall of the support seat 10; a connecting plate 8 fixedly connected to the rear end of the brake pedal 2; and a spring 5 provided between the brake pedal 2 and the pressure plate 9.

[0013] Specifically, during the forklift braking operation, the driver depresses the brake pedal 2. This initial action is the starting point of the entire braking process, providing the necessary power input for subsequent braking stages. The brake pedal 2 is tightly connected to the connecting plate 8 of the brake master cylinder via the brake pin 3. When the brake pedal 2 is depressed, the connecting plate 8 moves accordingly, precisely transmitting the mechanical force of the brake pedal 2 to the brake master cylinder. Inside the brake master cylinder 4, the movement of the connecting plate 8 causes the piston and other components to move. The piston, pushed by the connecting plate 8, applies pressure to the hydraulic oil, imparting pressure to the hydraulic oil. This pressurized hydraulic oil, through a dedicated hydraulic pipeline, is stable and... The hydraulic system efficiently transmits pressure to each brake caliper. The hydraulic lines serve as the key channel for pressure transmission, ensuring that the pressure reaches its destination accurately. The brake calipers are located near the wheels and are connected to the master cylinder 4 via hydraulic lines. When subjected to hydraulic oil pressure, the piston inside the brake caliper extends outward under pressure. The extension of the piston further pushes the brake pads closer to the brake disc, generating friction between the brake pads and the brake disc, thereby braking the forklift and allowing it to stop quickly. This braking mechanism effectively ensures braking performance and operational safety, especially when the forklift is heavily loaded or traveling at high speed.

[0014] Reference Figure 1 and Figure 3 The front end of the master cylinder 4 is rotatably connected to the outer wall of the connecting plate 8. The inner wall of the brake pedal 2 is fixedly connected to the induction switch 6. One end of the spring 5 is connected to the brake pedal 2, and the other end of the spring 5 is connected to the inner wall of the pressure plate 9.

[0015] Specifically, when the driver releases the brake pedal 2, the spring 5 pushes the connecting plate 8 to reset through its elastic force, causing the piston of the master cylinder 4 to return to its initial position, releasing the hydraulic oil pressure. The inductive switch 6 is used to detect the pressed state of the brake pedal 2 and transmits the electrical signal to the forklift control system, such as the instrument panel indicator light or the brake assist system, but does not directly participate in the mechanical or hydraulic connection.

[0016] Working Principle: The driver presses the brake pedal 2 down, which is the initial operation of the forklift braking process, providing power for subsequent braking actions. The brake pedal 2 is connected to the connecting plate 8 of the master cylinder via the brake pin 3. When the brake pedal 2 is pressed, it drives the connecting plate 8 to move. The connecting plate 8 plays the role of transmitting mechanical force, accurately transmitting the mechanical movement of the brake pedal 2 to the master cylinder. The movement of the connecting plate 8 causes the piston and other components inside the master cylinder 4 to move. Under the push of the connecting plate 8, the piston in the master cylinder 4 applies pressure to the hydraulic oil, giving the hydraulic oil a certain pressure energy, thus pressurizing the master cylinder 4. The hydraulic oil is stably pressured and transmitted to the brake calipers through specific hydraulic lines. The hydraulic lines, acting as pressure transmission channels, ensure that the pressure is transmitted to each brake caliper efficiently and accurately. When the brake caliper is pressurized by the hydraulic oil, the piston inside it extends outward under the pressure. The extension of the piston pushes the brake pads closer to the brake disc, and the friction between the brake pads and the brake disc achieves braking, thus stopping the forklift in a short time. This is especially effective when the forklift is heavily loaded or traveling at high speed, ensuring braking performance. All the connected calipers are located near the wheels and are connected to the master cylinder 4 through hydraulic lines. They contain pistons and push rods that directly push the brake pads to move.

[0017] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A hydraulic braking device for a forklift, characterized in that, include: As the main connecting body, the pedal support (1) has a support plate (7) fixedly connected to both sides of the top end of the pedal support (1). The inner wall of the support plate (7) is rotatably connected to the brake pin (3). The outer wall of the brake pin (3) is fixedly connected to the brake pedal (2). The rear end of the brake pedal (2) is fixedly connected to the pressure plate (9). The rear side of the top end of the pedal support (1) is fixedly connected to the support seat (10). The inner wall of the support seat (10) is fixedly connected to the brake master cylinder (4). The rear end of the brake pedal (2) is fixedly connected to the connecting plate (8). A spring (5) is provided between the brake pedal (2) and the pressure plate (9).

2. The hydraulic braking device for a forklift according to claim 1, characterized in that: The front end of the master cylinder (4) is rotatably connected to the outer wall of the connecting plate (8), and the inner wall of the brake pedal (2) is fixedly connected to an induction switch (6).

3. The hydraulic braking device for a forklift according to claim 1, characterized in that: One end of the spring (5) is connected to the brake pedal (2), and the other end of the spring (5) is connected to the inner wall of the pressure plate (9).

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