Forklift operation safety alarm device

Abstract

The utility model provides a fork truck operation safety alarm device relates to fork truck equipment technical field, including the alarm component of installation on the fork truck body and set up in the detection mechanism of fork truck body pair fork truck operation safety detection, detection mechanism includes the connecting rod of vertical installation on the door frame side, the mounting block of horizontal setting on the connecting rod end, the limit rod and transmission rod through the lifting assembly are arranged on the mounting block, the linkage assembly of installation on the mounting block and connection limit rod and transmission rod, and the detection component of setting on the side surface of limit rod near the one side of fork truck body wheel. The utility model is convenient to the steering safety of fork truck and carries out the detection and real -time protection, has improved the safety protection effect.

Description

Technical Field

[0001] This utility model relates to the field of forklift equipment technology, specifically a forklift operation safety alarm device. Background Technology

[0002] As a crucial piece of equipment in industrial transportation, the operational safety of forklifts directly impacts work efficiency and personnel safety. During the lifting and lowering of a forklift, the steering state of the wheels is a key factor affecting stability: if the wheels oversteer when lifting a load, it can cause the forklift's center of gravity to shift, increasing the risk of tipping over, or even leading to a collision due to excessive steering.

[0003] In existing technologies, forklift safety alarm devices mostly focus on monitoring parameters such as load weight and travel speed, lacking real-time detection and active limitation functions for wheel steering status. While some devices can collect steering data through sensors, they lack a linkage mechanism with load lifting and lowering actions, resulting in alarm delays or lagging limiting measures. This prevents timely intervention in wheel steering during critical phases of load increase (when the center of gravity changes most significantly), limiting safety protection. Furthermore, traditional detection mechanisms are complex in structure, have high installation and maintenance costs, and are difficult to adapt to the needs of different forklift models. Utility Model Content

[0004] To address the aforementioned problems, this utility model provides a forklift operation safety alarm device.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a forklift operation safety alarm device, comprising an alarm component installed on the forklift body and a detection mechanism installed on the forklift body for detecting forklift operation safety. The detection mechanism includes a connecting rod vertically installed on the side of the mast, a mounting block horizontally installed on the end of the connecting rod, a limit rod and a transmission rod respectively installed on the mounting block via a lifting component, a linkage component installed on the mounting block and connecting the limit rod and the transmission rod, and a detection component installed on the side of the limit rod near the wheel of the forklift body. In the initial state, the transmission rod is located at the bottom of the fork carriage, and the limit rod is horizontally located above the wheel side of the forklift body. When the forklift body is loaded with a load by the forks and the forks and the load are driven to rise synchronously by the fork carriage, the lifting component drives the transmission rod located below the fork carriage to move upward, and the linkage component drives the limit rod to move downward to the wheel side. The limit rod and the detection component limit and collect the wheel steering state.

[0006] Preferably, the lifting assembly includes a positioning lifting rod and a control lifting rod vertically disposed on one side of the mounting block, two lifting blocks that are respectively slidably disposed within lifting grooves opened along the length direction of the positioning lifting rod and the control lifting rod, and an elastic element disposed in the lifting groove and connected to the lifting blocks. When the elastic element is in a stretched state, the lifting blocks are located in the lifting groove near the mounting block. The bottom sides of the positioning lifting rod and the control lifting rod are respectively connected to a limiting rod and a transmission rod. The two lifting blocks are connected to the sides of the mounting block.

[0007] Preferably, the elastic element includes a slide rod that passes through the lifting groove and movably passes through the lifting block, and a limiting spring that is movably sleeved on the slide rod and whose two ends are respectively connected to the groove wall of the lifting groove and the lifting block.

[0008] Preferably, the linkage assembly includes a linkage gear rotatably mounted on the mounting block and located between the positioning lifting rod and the control lifting rod, and two linkage racks respectively mounted on the sides of the positioning lifting rod and the control lifting rod. The two linkage racks are symmetrical about the center of the linkage gear and both mesh with the linkage gear.

[0009] Preferably, a detection block is installed on the side of the limit rod near the wheel.

[0010] The beneficial effects of this utility model are:

[0011] 1. Through structural innovation and functional linkage, real-time detection and active limitation of wheel steering status during load lifting are achieved, significantly improving the safety of forklift operation. By linking the transmission rod with the lifting action of the fork carriage, when the forklift load increases, the transmission rod rises synchronously and drives the limit rod to descend to the wheel side via the linkage component. Combined with the detection component, the wheel steering angle is collected in real time. Simultaneously, the physical position limitation of the limit rod prevents over-steering of the wheels, ensuring stability during the lifting phase from a dual-dimensional "detection-limitation" approach, effectively reducing the risk of tipping over or collision.

[0012] 2. The steering data collected by the detection component is linked with the alarm component. When the steering angle exceeds the safety threshold, the alarm component will issue an audible and visual warning in a timely manner. Combined with the physical limitation of the limit rod, it forms a dual protection of "active limitation + passive warning" to reduce safety accidents caused by human error. Attached Figure Description

[0013] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0014] Figure 1 This is a simplified structural diagram of the forklift operation safety alarm device proposed in this utility model.

[0015] Figure 2 This is a schematic diagram of the detection mechanism structure of this utility model.

[0016] Figure 3 This is a schematic diagram of the back structure of the testing mechanism of this utility model.

[0017] In the diagram: 1. Forklift body; 2. Mast; 3. Fork carriage; 4. Connecting rod; 5. Linkage gear; 6. Positioning lifting rod; 7. Control lifting rod; 8. Linkage rack; 9. Limit rod; 10. Transmission rod; 11. Detection block; 12. Lifting groove; 13. Slide rod; 14. Limit spring; 15. Lifting block. Detailed Implementation

[0018] To make the technical means, creative features, and achieved objectives and effects of this utility model easier to understand, the present utility model is further described below with reference to specific embodiments and accompanying drawings. However, the following embodiments are only preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described in the embodiments without creative effort are all within the protection scope of this utility model.

[0019] Example 1: Reference Figures 1-3 The forklift operation safety alarm device shown includes an alarm component installed on the forklift body 1 and a detection mechanism installed on the forklift body 1 to detect forklift operation safety. The detection mechanism includes a connecting rod 4 vertically installed on the side of the mast 2, a mounting block horizontally installed on the end of the connecting rod 4, a limit rod 9 and a transmission rod 10 respectively installed on the mounting block via a lifting component, a linkage component installed on the mounting block and connecting the limit rod 9 and the transmission rod 10, and a detection component installed on the side of the limit rod 9 near the wheel of the forklift body 1. In the initial state, the transmission rod 10 is located on the bottom side of the fork carriage 3, and the limit rod 9 is horizontally located above the wheel side of the forklift body 1. When the forklift body 1 is loaded with a load by the forks and the forks and the load are driven to rise synchronously by the fork carriage, the lifting component drives the transmission rod 10 located below the fork carriage to move upward, and the linkage component drives the limit rod 9 to move downward to the wheel side. The limit rod 9 and the detection component limit and collect the wheel steering state.

[0020] In this embodiment, when the forklift body 1 is in its initial state (unloaded), the transmission rod 10 is located on the bottom side of the fork carriage 3, and the limit rod 9 is positioned laterally above the side of the forklift wheel (without contact with the wheel), with the detection component in standby mode. After the forklift loads a load on its forks, the fork carriage 3 lifts the forks and the load. At this time, the transmission rod 10, located below the fork carriage 3, moves upward under the action of the lifting component, and under the action of the linkage component, it drives the limit rod 9 downward, descending from above the side of the wheel to the side of the wheel (such as near the outer edge of the wheel or the steering joint), entering the working state. After the limit rod 9 descends to the side of the wheel, its physical position directly limits the steering range of the wheel (such as preventing the wheel from excessively extending or retracting), preventing the forklift's center of gravity from shifting due to excessive steering. At the same time, the detection component on the side of the limit rod 9 contacts or approaches the wheel surface, collecting data such as the wheel's steering angle and displacement in real time, and transmitting the signal to the alarm component. If the steering data collected by the detection component exceeds the preset safety threshold (excessive steering angle), the alarm component (audible and visual alarm) will immediately activate, emitting a warning sound or flashing a light to remind the operator to adjust the steering. After the forklift completes the load lifting (such as lowering goods or moving the control fork carriage 3 downward to lower the center of gravity), the fork carriage 3 descends, the transmission rod 10 is no longer obstructed by the fork carriage 3, the lifting component drives the limit rod 9 to rise again above the side of the wheel, the detection component stops working, and the device returns to its initial state.

[0021] This embodiment combines mechanical linkage with detection technology to achieve real-time monitoring, active limitation, and early warning of wheel steering status during forklift loading and unloading. The limit lever 9 descends to one side of the wheel when the load increases, directly preventing excessive wheel steering and avoiding forklift center of gravity shift due to excessive steering (especially when the load increases, the center of gravity rises, significantly increasing the risk of tipping over), thus reducing tipping accidents at the source. The detection component collects parameters such as wheel steering angle and displacement. If these parameters exceed the safety threshold, the alarm component is immediately triggered, reminding the operator to adjust the steering in time to avoid human error. The transmission rod 10 is directly linked to the lifting and lowering of the fork carriage 3. When the load increases, it automatically triggers the descent of the limit lever 9 and the operation of the detection component, requiring no manual intervention and providing a fast response, thus solving the problem of lag in traditional detection devices.

[0022] It is understood that the vertical lifting and lowering movement of the limit rod 9 and the transmission rod 10 can be controlled in various ways. This embodiment provides the following solution:

[0023] like Figure 2 and Figure 3As shown, the lifting assembly includes a positioning lifting rod 6 and a control lifting rod 7 vertically arranged on one side of the mounting block, two lifting blocks 15 that are respectively slidably inserted into lifting grooves 12 opened along the length direction of the positioning lifting rod 6 and the control lifting rod 7, and an elastic element disposed in the lifting groove 12 and connected to the lifting blocks 15. When the elastic element is in a stretched state, the lifting blocks 15 are located in the lifting groove 12 near the mounting block. The bottom sides of the positioning lifting rod 6 and the control lifting rod 7 are respectively connected to a limiting rod 9 and a transmission rod 10. The two lifting blocks 15 are connected to the sides of the mounting block.

[0024] In this embodiment, when the forklift body 1 and fork carriage 3 are located below the mast 2, the fork carriage 3 blocks the transmission rod 10, making the position of the transmission rod 10 on the forklift body 1 relatively fixed. Under the action of the linkage component, the limit rod 9 is located above the wheel side. When the forklift body 1 is loaded with forks and the fork carriage 3 is raised with load, the transmission rod 10 moves upward under the action of the lifting component, and under the action of the linkage component, the limit rod 9 moves downward to the wheel side. On the one hand, this avoids the situation where the wheel rotates in a large direction when the forks are raised with load, causing the center of gravity of the forklift body 1 to shift and causing driving danger. On the other hand, the detection component on the limit rod 9 detects the wheel steering status and issues an alarm through the alarm component to remind the driver.

[0025] like Figure 3 As shown, the elastic element includes a slide rod 13 that passes through the lifting groove 12 and moves through the lifting block 15, and a limiting spring 14 that is movably sleeved on the slide rod 13 and whose two ends are respectively connected to the groove wall of the lifting groove 12 and the lifting block 15.

[0026] In this embodiment, the limit spring 14 moves upward when the fork carriage 3 moves to its normal length. Under the action of the linkage component, the control lifting rod 7 moves upward and the limit rod 9 moves downward to block the wheel steering. At this time, the limit rod 9 moves downward under the action of the linkage component.

[0027] It is understandable that the positioning lifting rod 6 and the lifting rod 7 can be controlled to move synchronously in opposite directions in various ways. This embodiment provides the following solution:

[0028] like Figure 2 As shown, the linkage assembly includes a linkage gear 5 rotatably mounted on the mounting block and located between the positioning lifting rod 6 and the control lifting rod 7, and two linkage racks 8 respectively mounted on the sides of the positioning lifting rod 6 and the control lifting rod 7. The two linkage racks 8 are symmetrical about the linkage gear 5 and both mesh with the linkage gear 5.

[0029] In this embodiment, when the lifting rod 7 moves up or down, the meshing action of the linkage rack 8 and the linkage gear 5 can drive the positioning lifting rod 6 to move in the opposite direction synchronously, thereby facilitating the control of the limit rod 9 to move down when the fork carriage 3 moves up.

[0030] like Figure 2 and Figure 3 As shown, a detection block 11 is installed on the side of the limit rod 9 near the wheel. A pressure sensor is installed on the detection block 11. When the forklift body 1 turns, the wheel rotates and contacts the pressure sensor. The pressure sensor detects the signal, and the alarm component sounds an alarm.

[0031] Example 2: In Example 1 above, when the forks rise without load, the limit rod 9 will also move downward. This example provides the following solution.

[0032] The forks are equipped with a load-collecting structure and a fixing structure that fixes the transmission rod 10 at the position below the mounting block. When the forks are raised without load, the fixing structure fixes the position of the transmission rod 10. At this time, the limit rod 9 is located on the side above the wheel and does not restrict the wheel's steering, so as to facilitate the normal use of the forklift.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A forklift operation safety alarm device, comprising an alarm component installed on the forklift body (1) and a detection mechanism disposed on the forklift body (1) for detecting forklift operation safety, characterized in that, The detection mechanism includes a connecting rod (4) vertically installed on the side of the mast (2), a mounting block horizontally set on the end of the connecting rod (4), a limiting rod (9) and a transmission rod (10) respectively set on the mounting block by a lifting assembly, a linkage assembly installed on the mounting block and connecting the limiting rod (9) and the transmission rod (10), and a detection assembly set on the side of the limiting rod (9) near the wheel of the forklift body (1); In the initial state, the transmission rod (10) is located on the bottom side of the fork carriage (3), and the limit rod (9) is laterally located above the wheel side of the forklift body (1); When the forklift body (1) carries a load through the forks and the forks and the load are raised synchronously through the fork carriage, the lifting component drives the transmission rod (10) located below the fork carriage to move upward, and the linkage component drives the limit rod (9) to move downward to the side of the wheel. The limit rod (9) and the detection component limit and collect the wheel steering state.

2. The forklift operation safety alarm device according to claim 1, characterized in that: The lifting assembly includes a positioning lifting rod (6) and a control lifting rod (7) vertically arranged on one side of the mounting block, two lifting blocks (15) that slide through the lifting grooves (12) opened along the length of the positioning lifting rod (6) and the control lifting rod (7), and an elastic element set in the lifting groove (12) and connected to the lifting blocks (15). When the elastic element is in a stretched state, the lifting blocks (15) are located in the lifting groove (12) close to the mounting block. The bottom sides of the positioning lifting rod (6) and the control lifting rod (7) are respectively connected to a limiting rod (9) and a transmission rod (10). The two lifting blocks (15) are connected to the sides of the mounting block.

3. The forklift operation safety alarm device according to claim 2, characterized in that: The elastic element includes a slide rod (13) that passes through the lifting groove (12) and moves through the lifting block (15), and a limiting spring (14) that is movably sleeved on the slide rod (13) and whose two ends are respectively connected to the groove wall of the lifting groove (12) and the lifting block (15).

4. The forklift operation safety alarm device according to claim 2 or 3, characterized in that: The linkage assembly includes a linkage gear (5) rotatably mounted on the mounting block and located between the positioning lifting rod (6) and the control lifting rod (7), and two linkage racks (8) respectively mounted on the sides of the positioning lifting rod (6) and the control lifting rod (7). The two linkage racks (8) are symmetrical about the linkage gear (5) and both mesh with the linkage gear (5).

5. The forklift operation safety alarm device according to claim 1, characterized in that: A detection block (11) is installed on the side of the limit rod (9) near the wheel.

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