A telescopic boom frame for a lift truck

CN224716336UActive Publication Date: 2026-09-04CHANGZHOU BEICHEN MASCH CO LTD
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Patent Information

Application Number
CN202522344233.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-05
Publication Date
2026-09-04
Estimated Expiration
2035-11-05

AI Technical Summary

Technical Problem

[0004]目前,的堆高机在使用的过程中,大多情况下都在平地上运行使用,但是又部分刚修建好的仓库坡道、装卸货平台、临时作业场等常需要在具有一定坡度的环境下运行,这时堆高机整体重心发生偏移,极大增加了设备在行驶或举升货物时发生侧翻的风险,对操作人员及周围环境构成严重安全威胁,而且车架不水平会导致其上升降滑轨上的滑动架及货叉难以与目标货位精确对位,不仅降低作业效率,还容易在操作过程中发生碰撞,损坏货物或货架

Benefits of technology

[0025] This utility model provides a telescopic boom frame for a forklift, with telescopic mechanisms on both sides of the base frame. The telescopic mechanism includes a rotating seat welded to the base frame. A rotating rod and a rotating frame are mounted between the rotating seats via a damping shaft. A hydraulic cylinder and a support block are installed at the end of the rotating frame. When the forklift is in a sloping environment, the support can be adjusted through the telescopic mechanism to prevent the overall center of gravity of the forklift from shifting. This solves the problem that when the forklift is running in a sloping environment, the equipment has a high risk of tipping over when traveling or lifting goods, which poses a serious safety threat to the operators and the surrounding environment.

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Abstract

The utility model relates to the field of truck frame body of stacking machine, specifically provide a telescopic arm formula frame body for stacking machine, the utility model discloses a frame, the frame includes the chassis, the both sides of chassis are provided with telescopic mechanism, telescopic mechanism includes two rotating seat, two rotating seat are welded with chassis, rotating seat between through the damping pivot is equipped with the rotating lever, and the rotating lever is installed with the rotating frame, through setting up the telescopic mechanism of chassis both sides, wherein telescopic mechanism includes the rotating seat welded with chassis, and rotating seat is installed rotating lever and rotating frame through the damping pivot between, and the oil cylinder and support block are installed to the rotating frame end, when the stacking machine is in the environment with slope, can adjust the support through telescopic mechanism, prevent the overall barycenter of stacking machine from deviating, solved the problem that the stacking machine runs under the environment with certain slope, the equipment is in the risk of rollover when driving or lifting goods, to the operator and surrounding environment constitute serious security threat.
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Description

Technical Field

[0001] This utility model relates to the field of forklift chassis, and more particularly to a telescopic boom chassis for forklifts. Background Technology

[0002] A forklift is an industrial vehicle specifically designed for handling and stacking palletized goods. It is widely used in warehousing, logistics, and manufacturing industries. Its basic function is to lift, move, and stack goods using a forklift system. Its core structure includes a frame, power system, steering and lifting mechanisms, etc.

[0003] The inventors of this application have discovered the following problems during practical use:

[0004] Currently, most forklifts are used on flat ground. However, some newly built warehouse ramps, loading and unloading platforms, and temporary work areas often require operation in environments with a certain slope. In such cases, the overall center of gravity of the forklift shifts, greatly increasing the risk of tipping over when the equipment is moving or lifting goods. This poses a serious safety threat to operators and the surrounding environment. Furthermore, an unlevel chassis makes it difficult for the sliding frame and forks on the lifting rails to be accurately aligned with the target location, which not only reduces operating efficiency but also makes it easy for collisions to occur during operation, damaging goods or shelves.

[0005] Therefore, it is necessary to provide a telescopic boom chassis for forklifts to solve the above-mentioned technical problems. Utility Model Content

[0006] The technical problem to be solved by this utility model is to provide a telescopic boom frame for a forklift, addressing the above-mentioned deficiencies of the prior art.

[0007] To achieve the above objectives, the technical solution of this utility model is: a telescopic boom type frame for a forklift, comprising a frame, the frame including a base frame, and telescopic mechanisms provided on both sides of the base frame;

[0008] The telescopic mechanism includes two rotating seats, which are welded to the base frame. A rotating rod is installed between the rotating seats via a damping shaft, and a rotating frame is installed on the rotating rod. The top of the rotating frame is provided with a triangular reinforcing rib, and a hydraulic cylinder is installed at the end of the rotating frame. A support block is provided at the output end of the hydraulic cylinder.

[0009] By adopting the above technical solutions, the chassis, including the underframe and the telescopic mechanisms on both sides, can be flexibly adjusted to adapt to different terrains, enhance the stability of the forklift, ensure safe operation in complex environments, reduce the risk of tipping over, and ensure operational safety.

[0010] Furthermore, two tilt sensors are provided on the inner side of the base frame to detect the degree of tilt of the base frame.

[0011] By adopting the above technical solution, two tilt sensors are installed on the inner side of the underframe, which can detect the tilt degree of the underframe in real time, allowing operators to keep abreast of the frame status, prevent rollover in advance, ensure the safe operation of the forklift, and improve the reliability of operation.

[0012] Furthermore, two rear wheels are provided on one side of the bottom of the chassis, and two front wheels are provided on the other side of the bottom of the chassis.

[0013] By adopting the above technical solution, the bottom of the chassis has two rear wheels on one side and two front wheels on the other side, which are reasonably arranged to provide stable support, enhance the stability of the forklift, adapt to different road surfaces, and ensure smooth operation.

[0014] Furthermore, a lifting slide rail is provided at the top axis of the base frame, and a sliding frame that is raised and lowered by a traction component is provided on the inner side of the lifting slide rail.

[0015] By adopting the above technical solution, a lifting slide rail is installed at the top axis of the base frame, and the inner sliding frame can be raised and lowered to achieve precise lifting of goods, which facilitates the stacker to insert and place goods and improves operating efficiency.

[0016] Furthermore, one side of the sliding frame is provided with a bracket for inserting goods.

[0017] By adopting the above technical solution, a support frame is provided on one side of the sliding frame, which can be used to insert goods. The structure is simple and practical, making it convenient for forklifts to handle and stack goods, and improving the convenience and efficiency of loading and unloading goods.

[0018] Furthermore, the rotating frame is hinged to the rotating seat via the damping shaft, allowing the rotating frame to rotate within a set angle around the axis of the damping shaft.

[0019] By adopting the above technical solution, the rotating frame is hinged to the rotating seat through a damping shaft, which can rotate at a set angle, flexibly adjust the support position, enhance the adaptability of the forklift to different slopes, and ensure operational safety.

[0020] Furthermore, the cylinder body of the hydraulic cylinder is hinged to the end of the rotating frame, and the end of the piston rod of the hydraulic cylinder is connected to the support block.

[0021] By adopting the above technical solution, the cylinder body is hinged to the end of the rotating frame, and the piston rod is connected to the support block, which can accurately control the support force, stabilize the stacker, prevent tipping, and ensure operational safety.

[0022] Furthermore, the bottom surface of the support block is flat or has textures to increase adhesion.

[0023] By adopting the above technical solutions, the bottom surface of the support block is either flat or has added adhesion texture to increase friction with the ground, provide stable support, prevent the forklift from sliding, and ensure safe operation on different ground surfaces.

[0024] Compared with related technologies, the telescopic boom frame body for forklifts provided by this utility model has the following advantages:

[0025] This utility model provides a telescopic boom frame for a forklift, with telescopic mechanisms on both sides of the base frame. The telescopic mechanism includes a rotating seat welded to the base frame. A rotating rod and a rotating frame are mounted between the rotating seats via a damping shaft. A hydraulic cylinder and a support block are installed at the end of the rotating frame. When the forklift is in a sloping environment, the support can be adjusted through the telescopic mechanism to prevent the overall center of gravity of the forklift from shifting. This solves the problem that when the forklift is running in a sloping environment, the equipment has a high risk of tipping over when traveling or lifting goods, which poses a serious safety threat to the operators and the surrounding environment.

[0026] This utility model provides a telescopic boom frame for a forklift. By installing two tilt sensors on the inner side of the base frame, the tilt sensors can detect the degree of tilt of the base frame, allowing the operator to understand the tilt status of the frame in a timely manner so as to make adjustments. This solves the problem that an unlevel frame will make it difficult for the sliding frame and forks on the lifting rail to be accurately aligned with the target cargo position, reducing operating efficiency and making it easy for collisions to occur during operation, damaging goods or shelves. Attached Figure Description

[0027] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0028] Figure 2 This is a bottom view of the structure of this utility model;

[0029] Figure 3 This utility model Figure 1 Enlarged structural diagram at point A;

[0030] Figure 4 This utility model Figure 2 A magnified structural diagram at point B in the middle.

[0031] In the diagram: 1. Frame; 101. Underframe; 102. Rear wheel; 103. Front wheel; 104. Lifting rail; 105. Sliding frame; 106. Insert frame; 2. Telescopic mechanism; 201. Rotating seat; 202. Damping shaft; 203. Rotating frame; 204. Reinforcing rib; 205. Hydraulic cylinder; 206. Support block; 3. Tilt sensor. Detailed Implementation

[0032] To facilitate understanding of this utility model, a more comprehensive description will be given below with reference to the accompanying drawings. The drawings illustrate typical embodiments of this utility model.

[0033] Example 1:

[0034] like Figure 1 As shown, this utility model discloses a telescopic boom type vehicle frame for a forklift. The vehicle frame includes a base frame, and telescopic mechanisms are provided on both sides of the base frame.

[0035] The telescopic mechanism includes two rotating seats welded to the base frame. A rotating rod is mounted between the rotating seats via a damping shaft, and a rotating frame is mounted on the rotating rod. The top of the rotating frame has a triangular reinforcing rib, and a hydraulic cylinder is mounted at the end of the rotating frame. A support block is provided at the output end of the hydraulic cylinder. The frame consists of the base frame and the telescopic mechanisms on both sides. The design of the telescopic mechanism allows the forklift to adapt to different terrains through telescopic adjustments. In sloping areas, the telescopic mechanism can flexibly change position, enhancing the overall stability of the forklift. The base frame, as the basic support, works in conjunction with the telescopic mechanism to ensure stable operation of the forklift even in complex environments. This structure reduces the risk of the forklift tipping over due to a shift in the center of gravity, providing a safer working environment for operators and effectively ensuring safety during operation.

[0036] See Figure 1 , Figure 4 The underframe is equipped with two tilt sensors on its inner side to detect the degree of tilt. These sensors can accurately detect the tilt of the underframe in real time. During the operation of the forklift, regardless of the terrain, the tilt sensors can quickly relay the tilt information of the chassis to the operator. Based on this data, the operator can promptly assess the status of the forklift and take preventative measures to avoid tip-over accidents. This real-time monitoring function makes the forklift safer and more reliable when operating in complex environments, greatly improving operational stability and safety, and providing strong support for the normal operation of the forklift.

[0037] See Figure 1 , Figure 2The chassis features two rear wheels on one side of its bottom and two front wheels on the other side. This strategic wheel arrangement provides stable support for the forklift. During operation, the front and rear wheels work together to effectively distribute the forklift's weight, enhancing its stability on various surfaces. Whether on a flat warehouse floor or a temporary work area with some undulations, this wheel arrangement allows the forklift to maintain a smooth ride. It enables the forklift to better adapt to various complex road surfaces, reducing bumps and swaying caused by uneven surfaces, thus ensuring smooth operation.

[0038] See Figure 1 , Figure 2 The base frame has a lifting rail at its top axis, and a sliding frame that moves up and down via a traction component is located inside the lifting rail. The lifting rail at the top axis provides a precise track for the sliding frame's movement. The sliding frame, inside the lifting rail, achieves stable lifting and lowering motion via the traction component. During forklift operation, this structure allows for precise control of the goods' height, facilitating the forklift to easily place goods into suitable positions or lower them from heights. Whether lifting goods to higher shelves or removing goods from higher locations, the cooperation of the lifting rail and sliding frame enables fast and accurate operation, significantly improving the forklift's operational efficiency.

[0039] See Figure 1 , Figure 4 The sliding frame has a forklift on one side for inserting goods. Its simple yet practical structure allows it to be directly inserted into the bottom of the goods, firmly supporting them. During loading and unloading, the forklift can quickly and accurately contact the goods, facilitating handling and stacking. Compared to traditional loading and unloading methods, using a forklift significantly improves the convenience of loading and unloading. Operators only need to control the lifting and moving of the sliding frame to easily insert and place goods, reducing the intensity and time of manual handling and thus improving the efficiency of the entire loading and unloading process.

[0040] See Figure 1 , Figure 2 The rotating frame is hinged to the rotating base via the damping shaft, allowing the rotating frame to rotate within a set angle around the axis of the damping shaft. When the forklift is in a sloping environment, this rotation function can quickly adjust the support position of the rotating frame, allowing the support block to better contact the ground and provide stable support. By adjusting at different angles, the forklift can adapt to terrains with varying slopes, enhancing its adaptability in complex environments. This flexible rotating structure effectively ensures the safe operation of the forklift on different slopes, reducing safety hazards caused by unsuitable terrain.

[0041] See Figure 1 , Figure 2 The cylinder body is hinged to the end of the rotating frame, and the piston rod end is connected to the support block. When the forklift requires stable support, the cylinder can provide appropriate support force, ensuring the support block is firmly in contact with the ground and enhancing the forklift's stability. When the forklift is in a sloping environment or performing cargo lifting operations, the cylinder can adjust the support force according to the actual situation to prevent the forklift from tipping over due to a shift in its center of gravity. This precise control function provides reliable assurance for the safe operation of the forklift and effectively reduces safety risks during operation.

[0042] See Figure 1 , Figure 2 The bottom surface of the support block is either flat or has textured surfaces to increase adhesion. When the forklift is in a sloping environment or performing lifting operations, the support block can prevent the forklift from slipping due to insufficient ground friction, thus ensuring safe operation of the forklift under various ground conditions. This design improves the adaptability and stability of the forklift, providing a solid foundation for its normal operation.

[0043] In practice, firstly, during the operation of the forklift, two tilt sensors installed on the inner side of the chassis detect the tilt degree of the chassis in real time and feed the relevant data back to the operator or control system. When the forklift is in an environment with a certain slope, such as a newly built warehouse ramp, loading and unloading platform, temporary work area, etc., causing the chassis to be uneven, the operator or control system activates the telescopic mechanism on both sides of the chassis based on the data fed back by the tilt sensors.

[0044] In the telescopic mechanism, the damping shaft between the two rotating seats welded to the base frame drives the rotating rod to rotate, which in turn causes the rotating frame, which is equipped with triangular reinforcing ribs, to rotate around the axis of the damping shaft within a set angle. After adjusting to the appropriate angle, the hydraulic cylinder hinged at the end of the rotating frame is activated. The piston rod of the hydraulic cylinder extends, causing the support block at the output end to contact the ground. Since the bottom surface of the support block is flat or has textured surfaces to increase adhesion, it can provide stable support force, prevent the overall center of gravity of the stacker from shifting, reduce the risk of the equipment tipping over when traveling or lifting goods, and ensure the safety of operators and the surrounding environment.

[0045] At the same time, the frame remains horizontal, which allows the sliding frame, which moves up and down via the traction assembly on the inner side of the lifting rail at the top axis of the chassis, and the insert frame on one side of the sliding frame used to insert goods, to be precisely aligned with the target storage location, improving operational efficiency and preventing collisions during operation that could damage goods or shelves.

[0046] The advantages of this technical solution in practical applications include, but are not limited to, the following:

[0047] 1. Telescopic mechanisms are installed on both sides of the base frame, including rotating seats welded to the base frame. When there is a slope, the support can be adjusted to prevent the center of gravity from shifting, which solves the problem of high risk of tipping over and safety threats when the forklift is operating and lifting on slopes.

[0048] 2. Two tilt sensors are installed on the inside of the chassis to detect the tilt of the chassis and allow operators to make timely adjustments, which solves the problems of misalignment, low efficiency, and easy collision damage to the cargo rack caused by the non-level chassis.

[0049] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A telescopic boom frame for a forklift, characterized in that: Includes a frame (1), the frame (1) includes a base frame (101), and telescopic mechanisms (2) are provided on both sides of the base frame (101); The telescopic mechanism (2) includes two rotating seats (201), which are welded to the base frame (101). A rotating rod is installed between the rotating seats (201) through a damping shaft, and a rotating frame (203) is installed on the rotating rod. A triangular reinforcing rib (204) is provided on the top of the rotating frame (203), and a hydraulic cylinder (205) is installed at the end of the rotating frame (203). A support block (206) is provided at the output end of the hydraulic cylinder (205).

2. The telescopic boom frame for a forklift according to claim 1, characterized in that: Two tilt sensors (3) are provided on the inner side of the base frame (101) to detect the tilt degree of the base frame (101).

3. The telescopic boom frame for a forklift according to claim 1, characterized in that: Two rear wheels (102) are provided on one side of the bottom of the base frame (101), and two front wheels (103) are provided on the other side of the bottom of the base frame (101).

4. The telescopic boom frame for a forklift according to claim 1, characterized in that: A lifting slide rail (104) is provided at the top axis of the base frame (101), and a sliding frame (105) that is raised and lowered by a traction component is provided on the inner side of the lifting slide rail (104).

5. The telescopic boom frame for a forklift according to claim 4, characterized in that: One side of the sliding frame (105) is provided with a holder (106) for inserting goods.

6. The telescopic boom frame for a forklift according to claim 1, characterized in that: The rotating frame (203) is hinged to the rotating seat (201) via the damping shaft (202), so that the rotating frame (203) can rotate within a set angle around the axis of the damping shaft (202).

7. The telescopic boom frame for a forklift according to claim 1, characterized in that: The cylinder body of the hydraulic cylinder (205) is hinged to the end of the rotating frame (203), and the end of the piston rod of the hydraulic cylinder (205) is connected to the support block (206).

8. The telescopic boom frame for a forklift according to claim 1, characterized in that: The bottom surface of the support block (206) is either flat or has textures that increase adhesion.