Reversing protection device and reach stacker

Abstract

The reversing protection device comprises a connecting rod, the connecting rod is of an arc-shaped structure, the two ends of the connecting rod are each fixedly provided with a connecting base and a mounting base, the connecting bases are located behind the mounting bases, a plurality of mounting holes are formed in the connecting bases, and each mounting base is rotationally provided with a protection arm; the protection device can be directly and fixedly installed on the reach stacker through bolts, the installation mode is simple, the reach stacker does not need to be returned to a factory to be upgraded, the upgrading cost is effectively reduced, the upgrading efficiency is improved, and the practicability is high. When the reach stacker backs up and collides, the two protection arms collide before the rear balance weight, a driver is prompted through collision vibration of the protection arms, meanwhile, the two protection arms rotate in the direction away from each other, hard collision is avoided, wheels are shielded, and the emergency and protection effects are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of reach stackers, in particular to a reversing protection device and a reach stacker. Background Art

[0002] Reach stacker, also known as container reach crane, is a type of lifting equipment specially used for loading and unloading containers. It is a type of mobile lifting equipment, mainly used for stacking containers and horizontal transportation within docks and yards. Compared with forklifts, reach stackers have the advantages of mobility, easy operation, good stability, low wheel pressure, higher stacking layers, and higher yard utilization.

[0003] As a heavy lifting equipment, the design of the reach stacker is mainly focused on the lifting and transportation of containers, rather than the optimization of the field of view when reversing, resulting in a large reversing blind spot. When reversing, the driver's line of sight is often limited by factors such as the cab structure, the position and angle of the rearview mirror, resulting in the inability to observe the entire area behind the vehicle, making reversing collisions very likely to occur. In order to solve the problem of reversing blind spots, a reach stacker protection system has emerged, which installs reversing radar, reversing images and other equipment on the reach stacker and is equipped with a control center to achieve reversing warning.

[0004] However, most of the existing reach stacker protection systems are configured before the reach stackers leave the factory, and the traditional reach stackers that have been purchased and used at the work site are not equipped with them. The purchased and used traditional reach stackers need to be returned to the factory for configuration, resulting in high upgrade costs and long upgrade times for the traditional reach stackers, which seriously affects the progress of on-site work. In addition, reversing radars and reversing images only serve as prompts and warnings, and cannot play an emergency role. When the driver makes an operational error, the collided object can easily be sucked into the wheels. Utility Model Content

[0005] In order to solve the technical problems in the above-mentioned background technology that the existing reach stacker protection system needs to be configured before the reach stacker leaves the factory, resulting in high upgrade costs for traditional reach stackers, affecting work progress, and the reversing warning device cannot play an emergency role, the utility model provides a reversing protection device.

[0006] The technical solution of this utility model is as follows:

[0007] The utility model provides a reverse protection device, comprising: a connecting rod, the connecting rod having an arc-shaped structure, a connecting seat and a mounting seat fixedly provided at each end of the connecting rod, the connecting seat being located behind the mounting seat, the connecting seat being provided with a plurality of mounting holes, a protective arm being rotatably provided on each mounting seat, a guardrail grille being fixedly provided on the arm body of the protective arm, the free ends of the two protective arms being separated from each other, an elastic member being provided between the protective arm and the mounting seat, the protective device being directly fixed on the reach crane by bolts, the installation method being simple and adaptable, the reach crane does not need to be returned to the factory for upgrading, effectively reducing the upgrade cost, improving the upgrade efficiency, and having little impact on the work progress, and in the event of a reverse collision of the reach crane, the two protective arms will collide before the rear counterweight, and the driver will be alerted by the collision vibration of the protective arms, and at the same time, the two protective arms will rotate in a direction away from each other to avoid damage to the vehicle body and the collided object caused by the hard collision, because the arm body of the protective arm is provided with the guardrail grille, when the two protective arms are separated from each other to present an expanded posture, the two guardrail grilles are respectively located behind one rear wheel, thereby isolating the rear wheel from the collided object and preventing the rear wheel from being drawn into the rear wheel, thereby playing an emergency and protective role.

[0008] Preferably, the angle between the free ends of the two protection arms is not less than the curvature of the connecting rod, so that the two protection arms can quickly rotate and unfold in a direction away from each other during a reverse collision.

[0009] Preferably, the length of the protective arm is greater than the length of the guardrail grille.

[0010] Preferably, one end of the protective arm is rotatably connected to the mounting seat via a rotating shaft, and the other end of the protective arm is fixedly provided with a buffer portion, which can play a buffering role, avoid hard collision between the protective arm and the object being collided, and protect the object being collided.

[0011] Preferably, the end of the buffer portion is hemispherical, which can assist in the deployment of the protective arm.

[0012] The utility model provides a front load loader, comprising a chassis, wherein the chassis is provided with a rear counterweight, two connecting seats on a reversing protection device are fixedly arranged on the rear counterweight by bolts, and two protection arms are respectively adjacent to a rear wheel.

[0013] Preferably, it also includes a contour warning light, which is fixedly installed on the side of the cab. The contour warning light is a strip spotlight, which serves as a conspicuous warning to isolate the warning area around the reach crane, avoid on-site personnel getting close to the reach crane under construction at night, and improve safety.

[0014] It can be seen from the above technical solutions that the advantages of the present invention are:

[0015] 1. The protective device can be directly fixed on the reach crane by bolts. The installation method is simple and the adaptability is strong. The reach crane does not need to be returned to the factory for upgrade, which effectively reduces the upgrade cost, improves the upgrade efficiency, and has little impact on the work progress. In addition, when the reach crane reverses and collides, the two protective arms will collide before the rear counterweight, and the driver will be alerted by the collision vibration of the protective arms. At the same time, the two protective arms rotate in the direction away from each other to avoid damage to the vehicle body and the collided object caused by hard collision. Since guardrail grilles are provided on the arm bodies of the protective arms, when the two protective arms move away from each other to present an expanded posture, the two guardrail grilles are located behind each rear wheel, thereby isolating the rear wheel from the collided object and avoiding the rear wheel from being involved, thereby playing an emergency and protective role.

[0016] 2. One end of the protective arm is rotatably connected to the mounting base through a rotating shaft, and the other end of the protective arm is fixed with a buffer part, which can play a buffering role, avoid hard collision between the protective arm and the object being collided, and protect the object being collided. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the present invention, the following is a brief introduction to the drawings required for the description. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of a back-up protection device according to one or more embodiments of the present invention;

[0019] Figure 2 This is a schematic structural diagram of a back-up protection device according to one or more embodiments of the present invention from another angle;

[0020] The components represented by the reference numerals in the figure are:

[0021] 1. Connecting rod; 2. Connecting seat; 3. Mounting seat; 4. Spring; 5. Guard arm; 6. Guardrail grille; 7. Buffer part. DETAILED DESCRIPTION

[0022] In order to make the purpose, features, and advantages of the present invention more obvious and easy to understand, the technical solutions of the present invention will be clearly and completely described below in conjunction with the drawings in the specific embodiments. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this patent.

[0023] Example 1

[0024] In a typical embodiment of the present invention, Figure 1-Figure 2 As shown, a reversing protection device is proposed, including: a connecting rod 1, a connecting seat 2 and a mounting seat 3, wherein two connecting seats 2 are provided, and the two connecting seats 2 are relatively fixedly arranged at the two ends of the connecting rod 1; two mounting seats 3 are also provided, and the two mounting seats 3 are also relatively fixedly arranged at the two ends of the connecting rod 1.

[0025] Specifically, the connecting rod 1 is an arc-shaped structure, and a connecting seat 2 and a mounting seat 3 are fixed at both ends of the connecting rod 1. The connecting seat 2 and the mounting seat 3 located at the same end are distributed on both sides of the connecting rod 1. Specifically, the connecting seat 2 is located behind the mounting seat 3. A number of mounting holes are provided on the connecting seat 2, which can be fixed to the rear position of the chassis of the front crane (specifically on the rear counterweight of the base) by bolts.

[0026] It is understandable that the curvature of the connecting rod 1 matches the curvature of the curved surface of the actual rear counterweight, and no further restrictions are imposed on the details.

[0027] The mounting seat 3 is located in front of the connecting seat 2, and a protective arm 5 is rotatably provided on each mounting seat 3, and a guardrail grille 6 is fixed on the protective arm 5. The two protective arms 5 are relatively arranged at the two ends of the connecting rod 1, and the free ends of the two protective arms 5 (that is, the end away from the mounting seat 3) are far away from each other. Specifically, in a non-collision state, the angle between the free ends of the two protective arms 5 is not less than the curvature of the connecting rod 1.

[0028] One end of the protective arm 5 is rotatably connected to the corresponding mounting seat 3 through a rotating shaft. An elastic member is provided between the end of the protective arm 5 with the rotating shaft and the mounting seat 3, and the end of the protective arm 5 with the rotating shaft is connected to the mounting seat 3 through an elastic member. In this embodiment, the elastic member is a spring 4, which can enable the protective arm 5 to have a self-resetting function.

[0029] When the front crane collides with a reverse vehicle, the two protection arms 5 will collide before the rear counterweight, and the driver will be alerted by the collision vibration of the protection arms 5. At the same time, the two protection arms 5 rotate in the direction away from each other to avoid damage to the vehicle body due to hard collision. Since guardrail grilles 6 are provided on the arm bodies of the protection arms 5, when the two protection arms 5 move away from each other to present an expanded posture, the two guardrail grilles 6 are respectively located behind one rear wheel, thereby isolating the rear wheel from the collided object and avoiding the rear wheel from being involved, thereby playing an emergency and protective role.

[0030] The length of the protective arm 5 is greater than the length of the guardrail grille 6. One end of the protective arm 5 is rotatably connected to the mounting seat 3 through a rotating shaft. The other end of the protective arm 5 is fixed with a buffer part 7. The buffer part 7 is made of rubber, and the end of the buffer part 7 is hemispherical, which can play a buffering role, avoid hard collision between the protective arm 5 and the object being collided, and protect the object being collided.

[0031] The protective device in this embodiment can be directly fixed on the front loader by bolts. The installation method of the protective device is simple and adaptable. The front loader does not need to be returned to the factory for upgrading, which effectively reduces the upgrade cost, improves the upgrade efficiency, and has little impact on work progress.

[0032] It is understandable that in other embodiments, in order to improve the emergency protection capability, a sensor can also be set between the mounting seat 3 and the protective arm 5, and the sensor can be connected to the braking system, so that when the protective arm 5 rotates to trigger the sensor, it can be quickly braked with the cooperation of the sensor and the braking system. The specific setting method can be determined according to actual design requirements, and no excessive restrictions are imposed here.

[0033] Example 2

[0034] In another typical embodiment of the present invention, a front crane is proposed, which adopts the reversing protection device mentioned in Example 1. The front crane includes a chassis, and the chassis is provided with a rear counterweight. The two connecting seats 2 on the reversing protection device are fixed to the rear counterweight by bolts, and the two protection arms 5 are respectively adjacent to a rear wheel.

[0035] The reach stacker also includes contour warning lights, which are fixedly installed on the sides of the cab. The contour warning lights are strip-shaped spotlights that serve as a conspicuous warning to isolate the warning area around the reach stacker, prevent on-site personnel from getting close to the reach stacker under construction at night, and improve safety.

[0036] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A reverse protection device comprising: The connecting rod (1) is characterized in that the connecting rod (1) is an arc-shaped structure, a connecting seat (2) and a mounting seat (3) are fixedly provided at both ends of the connecting rod (1), the connecting seat (2) is located behind the mounting seat (3), a plurality of mounting holes are provided on the connecting seat (2), a protective arm (5) is rotatably provided on each mounting seat (3), a guardrail grille (6) is fixed on the arm body of the protective arm (5), the free ends of the two protective arms (5) are away from each other, and an elastic member is provided between the protective arm (5) and the mounting seat (3).

2. A back-up protection device according to claim 1, characterized in that: The angle between the free ends of the two protection arms (5) is not less than the arc of the connecting rod (1).

3. The back-up protection device according to claim 1, characterized in that: The length of the protection arm (5) is greater than the length of the guardrail grille (6).

4. A back-up protection device according to claim 3, characterized in that: One end of the protective arm (5) is rotatably connected to the mounting seat (3) via a rotating shaft, and the other end of the protective arm (5) is fixedly provided with a buffer portion (7).

5. The back-up protection device according to claim 1, characterized in that: The end of the buffer portion (7) is hemispherical.

6. A reach stacker, characterized in that: A back-up protection device according to any one of claims 1 to 5 is used, comprising: a chassis, the chassis being provided with a rear counterweight, two connecting seats (2) on the back-up protection device being fixed on the rear counterweight by bolts, and two protection arms (5) being respectively adjacent to a rear wheel.

7. A reach stacker according to claim 6, characterized in that: It also includes outline warning lights, which are fixedly installed on the sides of the cab and are strip-shaped spotlights.

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