Forklift balance weight mechanism

Abstract

The utility model relates to the technical field of counterbalance forklift trucks, in particular to a forklift truck balance weight mechanism. Comprising a forklift body, a fork arm part is arranged on the front side of the forklift body, the forklift body comprises a connecting base and a supporting base, the connecting base is in sliding connection with the supporting base, a cab is arranged on the upper side of the supporting base, a balance weight part is movably arranged at the tail of the supporting base, and the supporting base can drive the cab to move in the direction away from the fork arm part. And the counterweight part can extend backwards. When the fork arm part bears large load, the connecting base can move in the direction away from the fork arm part, meanwhile, the balance weight part can be released, the moment of force in the direction of the forklift body is increased, the whole device is assisted to keep balance, meanwhile, the balance weight part can extend out of the forklift body, the contact area between the device and the ground is increased, and turnover is avoided.

Description

Technical Field

[0001] This utility model relates to the field of counterbalanced forklift technology, specifically to a forklift counterbalance mechanism. Background Technology

[0002] Counterbalance forklifts are lifting vehicles equipped with lifting forks at the front and counterbalance weights at the rear. They are widely used in factories, ports, railway stations, warehouses, and other industries. However, during operation, the weight of the load often affects the forklift, causing a shift in the forklift's center of gravity before and after loading and unloading. This can easily lead to forklift rollover accidents, posing serious safety hazards to operators.

[0003] To address the aforementioned issues, Chinese Patent Publication No. CN220664792U discloses an easily adjustable counterbalanced forklift system. This system includes a forklift body, a push mechanism, and a counterbalance module. The forklift body is equipped with a fork carriage, on which a gravity sensor is mounted. The fork carriage is connected to the underframe, and the underframe, near the fork carriage, is connected to the front seat frame. The front seat frame is connected to the rear seat frame. The push mechanism, counterbalance module, and controller are all mounted on the underframe. The counterbalance module includes a fixed base, a counterbalance device, and a counterbalance block. This device solves the problem of the forklift's center of gravity shifting before and after loading and unloading goods, which can easily cause forklift rollover accidents. It achieves forklift balance without the need for additional counterbalance when the load is of equal weight, and eliminates the need for manual operation, thus reducing operational risks.

[0004] However, in this device, the counterweight is mounted on the base frame, and its center of gravity adjustment range is limited to the range of the equipment body, resulting in a generally poor adjustment effect. Therefore, this application provides a forklift balancing counterweight structure to solve the problem of unbalanced forces on the forklift affecting the overall stability of the equipment in the prior art. Summary of the Invention

[0005] To solve the above problems, this utility model provides a forklift balancing counterweight mechanism.

[0006] The technical solution adopted by this utility model to solve its technical problem is: a forklift balancing counterweight mechanism, including a forklift body, a fork arm part provided on the front side of the forklift body, the forklift body including a connecting seat and a support seat, the connecting seat and the support seat being slidably connected, the cab being provided on the upper side of the support seat, and a counterweight part being movably provided at the rear of the support seat, the support seat being able to drive the cab to move away from the fork arm part, and the counterweight part being able to extend backward.

[0007] As an optimization, the support base and the connecting base are arranged horizontally and parallel to each other, and the support base is provided with a first telescopic rod inside, the extended end of the first telescopic rod being fixedly connected to the connecting base;

[0008] The bottom surface of the support base is provided with a connecting groove, the connecting base is fitted into the connecting groove, a slider is provided inside the connecting groove, the connecting base is provided with a guide groove, and the slider is slidably connected to the connecting groove.

[0009] As an optimization, a second telescopic rod is provided inside the support base, and the extended end of the second telescopic rod is connected to the counterweight part.

[0010] As an optimization, the counterweight section includes a main counterweight block and two auxiliary counterweight blocks. The main counterweight block is located at the rear of the forklift body and is connected to the support base. The two auxiliary counterweight blocks are respectively located on both sides of the main counterweight block.

[0011] As an optimization, the main counterweight is equipped with a third telescopic rod, the extended end of which is connected to the auxiliary counterweight, and a guide rod is provided between the auxiliary counterweight and the main counterweight.

[0012] As an optimization, the auxiliary counterweight is equipped with an auxiliary telescopic rod, and the lower end of the auxiliary telescopic rod is connected to an auxiliary support. When the auxiliary counterweight extends to the outside of the forklift body, the auxiliary telescopic rod extends downward so that the auxiliary support contacts the ground.

[0013] The beneficial effects of this plan are as follows:

[0014] This application sets the forklift body as two parallel connecting seats and support seats. When the fork arm bears a large load, the connecting seats can be moved away from the fork arm. At the same time, the counterweight can be released to increase the torque in the direction of the forklift body, and the auxiliary equipment can maintain overall balance. Meanwhile, the counterweight can extend to the outside of the forklift body to increase the contact area between the equipment and the ground and prevent tipping. Attached Figure Description

[0015] Figure 1 This is an axonometric view of the present invention.

[0016] Figure 2 This is a schematic diagram of the back axis of this utility model.

[0017] Figure 3 This is a top view of the present invention.

[0018] Figure 4 This utility model Figure 3 A schematic diagram of the AA cross-section structure.

[0019] Figure 5 This utility model Figure 3 A schematic diagram of the BB cross-section structure.

[0020] Figure 6 This is a front view schematic diagram of the counterweight part of this utility model.

[0021] Figure 7 This utility model Figure 6 A schematic diagram of the CC cross-section structure.

[0022] The components are as follows: 1. Fork arm, 2. Connecting seat, 3. Support seat, 4. First telescopic rod, 5. Connecting groove, 6. Slider, 7. Second telescopic rod, 8. Main counterweight, 9. Auxiliary counterweight, 10. Third telescopic rod, 11. Guide rod, 12. Auxiliary telescopic rod, 13. Auxiliary support. Detailed Implementation

[0023] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0024] like Figures 1-7 As shown, the forklift counterweight mechanism includes a forklift body, a fork arm portion 1 is provided on the front side of the forklift body, the forklift body includes a connecting seat 2 and a support seat 3, the connecting seat 2 and the support seat 3 are slidably connected, the cab is provided on the upper side of the support seat 3, and a counterweight portion is movably provided at the rear of the support seat 3. The support seat 3 can drive the cab to move away from the fork arm portion 1, and the counterweight portion can extend backward.

[0025] The support base 3 and the connecting base 2 can be made of steel or iron. The setting of the support base 3 and the connecting base 2 does not affect the driving and power supply of the fork arm part 1.

[0026] like Figure 4 and Figure 5 As shown, the support base 3 and the connecting base 2 are arranged horizontally and parallel to each other. The support base 3 is provided with a first telescopic rod 4 inside, and the extended end of the first telescopic rod 4 is fixedly connected to the connecting base 2.

[0027] The bottom surface of the support base 3 is provided with a connecting groove 5, the connecting base 2 is fitted into the connecting groove 5, a slider 6 is provided inside the connecting groove 5, the connecting base 2 is provided with a guide groove, and the slider 6 is slidably connected to the connecting groove 5.

[0028] The slider 6 can be equipped with a limiting plate to prevent it from coming out of the connecting groove 5, and to allow the support base 3 and the connecting base 2 to move stably relative to each other without affecting the overall stability of the device. Other auxiliary connecting structures can also be provided to ensure the connection between the connecting base 2 and the support base 3, which will not be described in detail here.

[0029] like Figure 5 As shown, a second telescopic rod 7 is provided inside the support base 3, and the extended end of the second telescopic rod 7 is connected to the counterweight part.

[0030] The first telescopic rod 4 and the second telescopic rod 7 can be electric telescopic rods or other drive structures, such as motor and lead screw drives.

[0031] The counterweight section includes a main counterweight block 8 and two auxiliary counterweight blocks 9. The main counterweight block 8 is located at the rear of the forklift body and is connected to the support base 3. The two auxiliary counterweight blocks 9 are respectively located on both sides of the main counterweight block 8.

[0032] like Figure 3 and Figure 7 As shown, the main counterweight 8 is equipped with a third telescopic rod 10, the extended end of the third telescopic rod 10 is connected to the auxiliary counterweight 9, and a guide rod 11 is provided between the auxiliary counterweight 9 and the main counterweight 8.

[0033] The axis of the third telescopic rod 10 is perpendicular to the axis of the first telescopic rod 4. When the third telescopic rod 10 extends, the two auxiliary counterweights 9 extend outward at equal distances.

[0034] like Figure 2 As shown, the auxiliary counterweight 9 is provided with an auxiliary telescopic rod 12, and the lower end of the auxiliary telescopic rod 12 is connected to an auxiliary support 13. When the auxiliary counterweight 9 extends to the outside of the forklift body, the auxiliary telescopic rod 12 extends downward, so that the auxiliary support 13 contacts the ground.

[0035] When the device is in its initial state, the auxiliary support 13 and the main counterweight 8 are not in contact with the ground. When the auxiliary counterweight 9 extends outward, the auxiliary support 13 comes into contact with the ground and is pressed tightly.

[0036] In practical use, the release of the counterweight and support 3 can be set according to the weight of the forklift body and the weight of the goods. When the weight of the goods is large, the support 3 will extend away from the fork arm part 1.

[0037] In addition to the main counterweight 8 and the auxiliary counterweight 9, this application may also include multiple movable counterweights, such as... Figure 2As shown, the upper surfaces of the movable counterweight and the main counterweight 8 are recessed to form multiple limiting grooves, and the bottom surfaces of the movable counterweight and the main counterweight 8 can be provided with limiting protrusions. Depending on the specific weight of the goods, multiple movable counterweights can be connected to the main counterweight 8.

[0038] When the device is in use, it picks up goods by forking the fork arm 1. When the weight of the goods is large, the first telescopic rod 4 and the second telescopic rod 7 are extended, the support base 3 extends away from the fork arm 1, and the main counterweight 8 extends away from the fork arm 1.

[0039] The third telescopic rod 10 extends, causing the auxiliary counterweight 9 to extend towards the support seat 3. At the same time, the auxiliary telescopic rod 12 extends, causing the auxiliary support 13 to be pressed tightly against the ground, increasing the contact area between the forklift body and the ground.

[0040] When it is necessary to use the forklift to move goods, the auxiliary telescopic rod 12 can be slightly shortened, and the auxiliary support 13 will not contact the ground, so as not to affect the overall movement of the device.

[0041] To facilitate the overall operation of the device, this application may also include components such as pressure sensors and controllers. The positions of the pressure sensors and controllers are set by the operators according to the actual situation during operation. The controller is used to control the electrical components used in this solution, including but not limited to sensors, motors, telescopic rods, water pumps, solenoid valves, heating wires, heat pumps, displays, computer input devices, switches, communication devices, lights, speakers, and microphones. The controller is an Intel processor, AMD processor, PLC controller, ARM processor, or microcontroller. It is also used in conjunction with a motherboard, memory modules, storage media, and power supply. The power supply is AC power or a lithium battery. When a display screen is provided, a display card is also provided.

[0042] The above-described specific embodiments are merely specific examples of this utility model. The patent protection scope of this utility model includes, but is not limited to, the product form and style of the above-described specific embodiments. Any forklift balancing counterweight mechanism that conforms to the claims of this utility model and any appropriate changes or modifications made to it by a person skilled in the art should fall within the patent protection scope of this utility model.

Claims

1. A forklift counterweight mechanism, comprising a forklift body, wherein a fork arm portion (1) is provided on the front side of the forklift body, characterized in that: The forklift body includes a connecting seat (2) and a support seat (3). The connecting seat (2) and the support seat (3) are slidably connected. The cab is located on the upper side of the support seat (3). A counterweight is movably provided at the rear of the support seat (3). The support seat (3) can drive the cab to move away from the fork arm part (1). The counterweight can extend backward. The support base (3) and the connecting base (2) are arranged horizontally and parallel to each other. The support base (3) is provided with a first telescopic rod (4), and the extended end of the first telescopic rod (4) is fixedly connected to the connecting base (2). The bottom surface of the support base (3) is provided with a connecting groove (5), the connecting base (2) is fitted into the connecting groove (5), a slider (6) is provided inside the connecting groove (5), the connecting base (2) is provided with a guide groove, and the slider (6) is slidably connected to the connecting groove (5).

2. The forklift counterweight mechanism according to claim 1, characterized in that: The support base (3) is provided with a second telescopic rod (7) inside, and the extended end of the second telescopic rod (7) is connected to the counterweight part.

3. The forklift counterweight mechanism according to claim 1, characterized in that: The counterweight section includes a main counterweight block (8) and two auxiliary counterweight blocks (9). The main counterweight block (8) is located at the rear of the forklift body and is connected to the support base (3). The two auxiliary counterweight blocks (9) are respectively located on both sides of the main counterweight block (8).

4. The forklift counterweight mechanism according to claim 3, characterized in that: The main counterweight (8) is equipped with a third telescopic rod (10), the extended end of which is connected to the auxiliary counterweight (9), and a guide rod (11) is provided between the auxiliary counterweight (9) and the main counterweight (8).

5. The forklift counterweight mechanism according to claim 3, characterized in that: The auxiliary counterweight (9) is equipped with an auxiliary telescopic rod (12), and the lower end of the auxiliary telescopic rod (12) is connected to an auxiliary support (13). When the auxiliary counterweight (9) extends to the outside of the forklift body, the auxiliary telescopic rod (12) extends downward, so that the auxiliary support (13) contacts the ground.

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