Forklift counterweight structure and forklift

Abstract

The invention relates to a forklift balancing weight structure which comprises a main balance weight, a common-mode weight, a first movable balancing weight, a second movable balancing weight and a tailstock, the main balance weight and the common-mode weight are integrally cast and formed, and the first movable balancing weight and the second movable balancing weight are sequentially arranged and installed in a cavity formed by the tailstock, the main balance weight and the common-mode weight. According to the forklift balancing weight structure, the main balance weight, the common-mode weight, the first movable balancing weight and the second movable balancing weight are installed in the cavity, the appearance of the main balance weight is not changed, the main balance weight with the appearance can be matched with other weights to adapt to forklifts with different tonnage loads, the application range of the forklift balancing weight structure is widened, and meanwhile the mold opening cost is reduced; and the first movable balancing weight and the second movable balancing weight are arranged in the cavity, so that the forklift can be applied to different scenes, and the use cost is reduced. By applying the forklift balancing weight structure, the forklift also has the advantages that the stability of the forklift in the goods carrying process is guaranteed, and meanwhile the use cost of a user is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of intelligent logistics equipment, and in particular to a forklift counterweight structure and a forklift. Background Art

[0002] A counterbalanced forklift is a common type of forklift. The core of its design is to offset the weight of the cargo through a rear counterweight, thereby maintaining the stability of the vehicle during operation.

[0003] The counterbalanced forklift is mainly composed of the following parts: 1. Frame: As the main structure, it is used to support various parts of the forklift; 2. Fork and mast: The fork is used to insert and carry goods, and the mast is used to support the lifting of the fork; 3. Counterweight: located at the rear of the forklift, used to offset the weight of the cargo and ensure the stability of the vehicle; 4. Drive system: provides power to drive the wheels to rotate; 5. Steering system: controls the steering angle of the wheels to realize the steering operation of the forklift; 6. Braking system: used to slow down or stop the forklift; 7. Operation control system: includes joysticks, foot pedals and control panels, etc., used to control the movement, lifting and tilting of the forklift.

[0004] The working principle of a counterbalanced forklift is based on the fulcrum principle and weight distribution principle of physics. It supports the weight of the entire forklift and the cargo through four fulcrums (two on the front wheels and two on the rear wheels), and achieves balance by adjusting the force at the fulcrums. During the handling process, the weight of the cargo will change the overall center of gravity of the forklift, and the design of the counterbalance can effectively offset this change and ensure the stability of the forklift.

[0005] In the prior art, the counterweight of a counterbalanced forklift is usually fixed during design, that is, one tonnage is configured with a counterweight of fixed weight, resulting in the counterweight being unable to be flexibly adjusted according to different cargo weights and operating scenarios. For example, when carrying lighter cargo, an excessively heavy counterweight may cause the forklift's center of gravity to shift backward, affecting operational flexibility and steering performance, and making it difficult to carry heavier cargo, which may cause the forklift to easily tip forward, etc.; and due to the different counterweight weights of different tonnages, different molds need to be developed to increase the counterweight structure to adapt to the vehicle model. This method is cumbersome and uneconomical in the production process, increasing the user's usage cost while affecting the user's usage experience, which is not conducive to the promotion and application of the above-mentioned forklifts in the market. Summary of the invention

[0006] In order to overcome the defects in the above-mentioned prior art, the first invention purpose of the present invention is to provide a forklift counterweight structure. The forklift counterweight structure is ingenious. Without changing the appearance of the main counterweight, the main counterweight with this appearance can be matched with the remaining weight blocks to adapt to forklifts with different tonnage loads, thereby expanding its application range while reducing the mold opening cost. By arranging active counterweight blocks 1 and 2 inside the cavity, the forklift can be used in different scenarios to reduce the cost of use. The second invention purpose of the present invention is to provide a forklift, which, by applying the above-mentioned forklift counterweight structure, also has the advantages of ensuring the stability of the forklift during the process of handling goods while reducing the user's use cost and enhancing the user's use experience.

[0007] The forklift counterweight structure described above is technically related to the forklift described above and belongs to the same inventive concept.

[0008] In order to achieve the above-mentioned first invention purpose, the present invention adopts the following technical scheme: a forklift counterweight structure, including a main counterweight, a common mode weight block, a detachable movable counterweight block one, a detachable movable counterweight block two and a tail frame, wherein the movable counterweight block one and the movable counterweight block two are arranged in sequence and installed in a cavity formed by the tail frame, the main counterweight and the common mode weight block.

[0009] As a preferred solution of the present invention, the movable counterweight block 1 and the movable counterweight block 2 are both in the form of multiple single blocks; the movable counterweight block 2 is in the shape of a flat plate, so that multiple movable counterweight blocks 2 can be stacked on top of the movable counterweight block 1 or the tail frame and located below the common mode weight block.

[0010] As a preferred solution of the present invention, the common mode weight is a symmetrical structure, including a main body and an extension part, and the two extension parts are symmetrically arranged along the central axis of the main body.

[0011] As a preferred solution of the present invention, the main body is cut to form a decompression groove, the decompression groove is located at the center of the top of the main body, and the setting direction of the decompression groove is consistent with the installation direction of the common mode weight block.

[0012] As a preferred solution of the present invention, the movable counterweight block 2 is a cubic structure and has a retaining groove for installing a retaining bar formed on the side, and two upper and lower adjacent movable counterweight blocks 2 can be arranged in close contact.

[0013] As a preferred solution of the present invention, two adjacent movable counterweight blocks one in front and behind can be arranged in close contact.

[0014] As a preferred solution of the present invention, the tail frame includes a mounting base plate, a mounting support plate and a mounting side plate, two of the mounting support plates are vertically installed on both sides of the mounting base plate, and the top surfaces of the two mounting support plates are located in the same plane to form a mounting plane for the two movable counterweight blocks to be stacked in sequence; the mounting side plate is connected between the mounting base plate and the mounting support plate.

[0015] As a preferred solution of the present invention, the shape formed by the two mounting side plates and the mounting bottom plate is compatible with the shape of the movable counterweight block one and is used to support the movable counterweight block one.

[0016] As a preferred solution of the present invention, the main counterweight and the common mold weight block are integrally cast.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: a forklift counterweight structure in the present invention is ingenious, by arranging the main counterweight, the common-mode weight block, the movable counterweight block one, the movable counterweight block two and the tail frame, the common-mode weight block can be detachably installed in the main counterweight, or can be integrally formed with the main counterweight by casting. Specifically, it can be customized according to actual needs, and a cavity for the movable counterweight block one and the movable counterweight block two is formed between the main counterweight, the common-mode weight block and the tail frame. In actual use, the movable counterweight block one located below the movable counterweight block two is preferentially installed, and when the movable counterweight block one is fully assembled, After completion, the movable counterweight block 2 is stacked on top of the movable counterweight block 1 mentioned above in sequence. The specific number of movable counterweight blocks 1 and 2 is determined according to the forklifts with different tonnage loads. In the whole process, since the common mold weight block, movable counterweight block 1 and movable counterweight block 2 are all located inside the main counterweight, there is no need to change the appearance of the main counterweight, so that the main counterweight with this appearance can be matched with the remaining weight blocks to adapt to forklifts with different tonnage loads, thereby expanding its application range while reducing the mold opening cost of the main counterweight. In addition, by arranging movable counterweight block 1 and movable counterweight block 2 inside the cavity, the forklift can be used in different scenarios to reduce the cost of use.

[0018] In order to achieve the above second invention objective, the present invention adopts the following technical solution: a forklift, comprising the above forklift counterweight structure.

[0019] Compared with the prior art, the beneficial effects of the present invention are: a forklift in the present invention, by applying the above-mentioned forklift counterweight structure, can adaptively adjust its tonnage load and expand its utilization rate. Users do not need to purchase multiple forklifts to achieve loads of different tonnages, which greatly reduces the user's purchase cost and enhances the user's experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a structural schematic diagram of a forklift counterweight structure in an embodiment; Figure 2 is a structural schematic diagram of a forklift counterweight structure in an embodiment; Figure 3 is a structural schematic diagram of a main counterweight in a forklift counterweight structure in an embodiment; Figure 4 is a structural schematic diagram of a common mold weight block in a forklift counterweight structure in an embodiment; Figure 5 It is a structural schematic diagram of a movable counterweight block 1 in a forklift counterweight structure in an embodiment; Figure 6 It is a structural schematic diagram of a movable counterweight block 2 in a forklift counterweight structure in an embodiment; Figure 7 It is a structural schematic diagram of a tail frame in a forklift counterweight structure in an embodiment.

[0021] Figure markings: 1. main counterweight; 1-1. cavity; 2. common mode weight block; 2-1. main body; 2-2. extension portion; 2-3. pressure relief groove; 3. movable counterweight block one; 4. movable counterweight block two; 4-1. retaining groove; 5. tail frame; 5-1. mounting base plate; 5-2. mounting support plate; 5-3. mounting side plate; 5-4. support plate; 6. retaining bar; 7. baffle. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is described below by the specific embodiments shown in the accompanying drawings. However, it should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present invention. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present invention.

[0023] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0024] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0025] In the prior art, the counterweight of a counterbalanced forklift is usually fixed during design, that is, one tonnage is configured with a counterweight of fixed weight, resulting in the counterweight being unable to be flexibly adjusted according to different cargo weights and operating scenarios. For example, when carrying lighter cargo, an excessively heavy counterweight may cause the forklift's center of gravity to shift backward, affecting operational flexibility and steering performance, and making it difficult to carry heavier cargo, which may cause the forklift to easily tip forward, etc.; and due to the different counterweight weights of different tonnages, different molds need to be developed to increase the counterweight structure to adapt to the vehicle model. This method is cumbersome and uneconomical in the production process, increasing the user's usage cost while affecting the user's usage experience, which is not conducive to the promotion and application of the above-mentioned forklifts in the market.

[0026] In order to solve the above technical problems, Figures 1 to 7 As shown, a forklift counterweight structure is designed mainly to meet the needs of different scenarios, even if the forklift has different tonnage loads, to maintain the stability of the vehicle during operation. The forklift counterweight structure in this embodiment is mainly composed of a main counterweight 1, a common mold weight 2, a detachable movable counterweight block 1 3, a detachable movable counterweight block 2 4 and a tail frame 5. The main counterweight 1 is modularized to keep the appearance of the main counterweight 1 of a forklift of 2-3.8 tons consistent, that is, it is produced under the same mold, and no additional mold is required to make the main counterweight 1. As we all know, the cost of mold opening is particularly high. In this embodiment, by simplifying the appearance of the main counterweight 1 of the forklift of the above tonnage, the mold opening cost can be greatly reduced, thereby reducing the production cost of the main counterweight 1 and the forklift, thereby achieving the purpose of reducing costs and increasing efficiency.

[0027] Specifically, the forklift counterweight structure is ingenious. By arranging the main counterweight 1, the common-mode weight block 2, the movable counterweight block 1 3, the movable counterweight block 2 4 and the tail frame 5, the common-mode weight block 2 can be detachably installed in the main counterweight 1, or can be integrally formed with the main counterweight 1 by casting. Specifically, it can be customized according to actual needs, and a cavity 1-1 for the movable counterweight block 1 3 and the movable counterweight block 2 4 is formed between the main counterweight 1, the common-mode weight block 2 and the tail frame 5. In actual use, the movable counterweight block 1 3 located below the movable counterweight block 2 4 is preferentially installed. After the movable counterweight block 1 3 is fully assembled, the movable counterweight block 2 4 is assembled according to the The movable counterweight block 1-3 is stacked on top of the above-mentioned movable counterweight block 1-3. The specific number of movable counterweight blocks 1-3 and movable counterweight blocks 2-4 is determined according to the forklifts with different tonnage loads. During the whole process, since the common mode weight block 2, the movable counterweight block 1-3 and the movable counterweight block 2-4 are all located inside the main counterweight 1, there is no need to change the appearance of the main counterweight 1, so that the main counterweight 1 with this appearance can be matched with the remaining weights to adapt to forklifts with different tonnage loads, thereby expanding its application range while reducing the mold opening cost of the main counterweight 1. In addition, by arranging the movable counterweight block 1-3 and the movable counterweight block 2-4 inside the cavity 1-1, the forklift can be used in different scenarios to reduce the cost of use.

[0028] In actual use and operation, a single main counterweight 1 and a common weight block 2 can be matched to form a counterweight structure, or a main counterweight 1, a common weight block 2 and a movable counterweight block 1 3 can be combined to form a counterweight structure, or a main counterweight 1, a common weight block 2 and a movable counterweight block 2 4 can be combined to form a counterweight structure, or a main counterweight 1, a common weight block 2, a movable counterweight block 1 3 and a movable counterweight block 2 4 can be combined to form a counterweight structure, and the specific combination method can be formulated according to actual needs. The counterweight structure is usually located at the rear of the forklift to offset the weight of the cargo and ensure the stability of the vehicle.

[0029] The tail frame 5 can provide a stable support and fixing structure for the counterweight structure, ensuring that the counterweight structure will not shift or loosen during the operation of the forklift, thereby ensuring the stability and safety of the forklift. The counterweight structure is located at the center of the main counterweight 1 or is symmetrically arranged along the central axis of the main counterweight 1, thereby further ensuring the stability of the forklift during operation. The above-mentioned tail frame 5 is also a symmetrical structure. Specifically, the tail frame 5 is mainly composed of a mounting base plate 5-1, a mounting support plate 5-2 and a mounting side plate 5-3. The upper surface of the mounting base plate 5-1 is a plane, mainly to facilitate the installation of the above-mentioned movable counterweight block 3. The two mounting support plates 5-2 are vertically mounted on both sides of the mounting base plate 5-1 so that the top surfaces of the two mounting support plates 5-2 are located in the same plane to form a mounting plane for stacking the movable counterweight block 2 4, that is, the movable counterweight block 2 4 can be stacked on the mounting plane formed by the two mounting support plates 5-2, the movable counterweight block 1 3 can be directly stacked front to back on the upper surface of the mounting base plate 5-1, and the common mode weight block 2 is located above the movable counterweight block 2 4, so that the three are spatially related to each other, and the overall structure of the counterweight structure is compact, reducing the space occupied. The above-mentioned mounting side plate 5-3 is connected between the above-mentioned mounting base plate 5-1 and the above-mentioned mounting support plate 5-2. On the one hand, the overall stability of the tail frame 5 is enhanced. On the other hand, by setting the above-mentioned mounting side plate 5-3 at a certain angle, the shape formed by the two above-mentioned mounting side plates 5-3 and the above-mentioned mounting base plate 5-1 is compatible with the shape of the above-mentioned movable counterweight block 3. At the same time, the above-mentioned mounting side plate 5-3 can also support the side of the above-mentioned movable counterweight block 3. The shape here can be an inverted trapezoid, that is, the bottom surface of the above-mentioned movable counterweight block 3 is fitted with the surface of the above-mentioned mounting base plate 5-1, and the two side surfaces of the above-mentioned movable counterweight block 3 are fitted with the surface of the above-mentioned mounting side plate 5-3, which can ensure that the movable counterweight block 3 will not shake or shift during operation, thereby improving the stability of the entire counterweight system. The fitting setting method can also enhance the contact area between the counterweight block structure and the tail frame 5, thereby improving the overall strength of the structure and reducing damage caused by external impact or vibration. Through the fitting setting, the movable counterweight block can also be flexibly adjusted according to different load requirements, thereby realizing modular design and meeting the balance requirements under different working conditions. In order to further enhance the stability of the overall structure of the tailstock 5, a support plate 5-4 is also installed on the back of the above-mentioned mounting side plate 5-3, and the above-mentioned support plate 5-4 plays a certain supporting role on the above-mentioned mounting side plate 5-3. The above-mentioned movable counterweight block 1 3 and the above-mentioned movable counterweight block 2 4 are both in the form of multiple single pieces. The multiple single pieces form means that the single movable counterweight block 1 3 and the single movable counterweight block 2 4 can be designed as multiple pieces. However, the size and weight of the single movable counterweight block 1 3 are consistent, and there is no need to open molds for multiple times to produce it, thereby reducing the production cost. Similarly, the size and weight of the above-mentioned movable counterweight block 2 4 are consistent.The movable counterweight block 2 4 is in a flat plate shape, so that multiple movable counterweight blocks 2 4 can be stacked on the movable counterweight block 1 3 or the tail frame 5 and located below the common weight block 2. Multiple movable counterweight blocks 2 4 can be stacked sequentially from bottom to top, further satisfying the use of the forklift under different working conditions. Similarly, multiple movable counterweight blocks 1 3 can be stacked sequentially from front to back or from back to front.

[0030] In this embodiment, in order to ensure the stability of the forklift during operation, the common-mode weight 2 is a symmetrical structure, which includes a main body 2-1 and an extension 2-2. The main body 2-1 and the extension 2-2 can be integrally cast by casting, and the material can be metal or natural mineral sand and gravel as the basic material. The two extensions 2-2 are symmetrically arranged along the central axis of the main body 2-1. An installation groove for installing the common-mode weight 2 is formed in the main counterweight 1. The main body 2-1 is located in the installation groove. The two extensions 2-2 extend out of the installation groove and abut against the bottom of the edge of the installation groove, thereby increasing the contact area between the common-mode weight 2 and the main counterweight 1, thereby further ensuring the stability of the common-mode weight 2. In order to prevent the main body 2-1 of the common mode weight 2 from being firmly attached to the top of the installation groove and to further reduce the difficulty of disassembly and assembly, in this embodiment, a decompression groove 2-3 is formed at the center of the top of the main body 2-1, and the setting direction of the decompression groove 2-3 is consistent with the installation direction of the common mode weight 2. Some air is left in the decompression groove 2-3 to reduce the difficulty of detaching the common mode weight 2 from the cavity 1-1.

[0031] The movable counterweight block 2 4 is a square structure and has a retaining groove 4-1 for installing the retaining bar 6 on the side, and two adjacent movable counterweight blocks 2 4 can be arranged in a close fit. The design of the retaining groove 4-1 can cooperate with the retaining bar 6 to form a stable limiting structure to prevent the movable counterweight block 2 4 from shifting or shaking during the operation of the forklift, thereby improving the stability of the entire counterweight system. The retaining groove 4-1 also provides a standardized installation interface for the movable counterweight block, so that the movable counterweight block 2 4 can be quickly replaced or adjusted according to different load requirements, realizing a modular design and improving the flexibility and adaptability of the forklift. Through the cooperation of the retaining groove 4-1 and the retaining bar 6, it is also possible to ensure that the movable counterweight block 2 4 is accurately positioned on the tail frame 5, thereby optimizing the distribution of the counterweight, making the center of gravity of the forklift more reasonable, and improving the operating stability. The cooperation of the retaining groove 4-1 and the retaining bar 6 can also effectively prevent the movable counterweight block 2 4 from loosening due to external force impact or vibration during the operation of the forklift, thereby improving the safety of the forklift. Similarly, baffles 7 for limiting position are installed in front and behind the movable counterweight block 3, and the baffles 7 are detachably installed on the tail frame 5 through screws and other connecting parts, that is, the position of the baffle 7 can be moved forward and backward according to the number of the movable counterweight blocks 3, thereby ensuring the stability of the movable counterweight block 3 installed between the two baffles 7. The two adjacent movable counterweight blocks 3 can be arranged in close proximity to each other, thereby ensuring the stability of the overall counterweight structure.

[0032] The forklift counterweight structure in this embodiment is ingenious. By setting the main counterweight 1, the common-mode weight block 2, the movable counterweight block 1 3, the movable counterweight block 2 4 and the tail frame 5, the common-mode weight block 2 can be detachably installed in the main counterweight 1, or can be integrally formed with the main counterweight 1 by casting. Specifically, it can be customized according to actual needs, and a cavity 1-1 for the movable counterweight block 1 3 and the movable counterweight block 2 4 is formed between the main counterweight 1, the common-mode weight block 2 and the tail frame 5. In actual use, the movable counterweight block 1 3 located below the movable counterweight block 2 4 is preferentially installed. After the movable counterweight block 1 3 is fully assembled, the movable counterweight block 2 4 is then installed. They are stacked in sequence on top of the above-mentioned movable counterweight block 1 3, and the specific number of movable counterweight block 1 3 and movable counterweight block 2 4 is determined according to the forklifts with different tonnage loads. In the whole process, since the common mode weight block 2, movable counterweight block 1 3 and movable counterweight block 2 4 are all located inside the main counterweight 1, there is no need to change the appearance of the main counterweight 1, so that the main counterweight 1 with this appearance can be matched with the remaining weights to adapt to forklifts with different tonnage loads, thereby expanding its application range while reducing the mold opening cost of the main counterweight 1, and by arranging the movable counterweight block 1 3 and movable counterweight block 2 4 inside the cavity 1-1, the forklift can be used in different scenarios to reduce the cost of use.

[0033] The forklift counterweight structure in the above embodiment can be applied to, including but not limited to, forklifts, and can also be applied to other types of counterweight vehicles.

[0034] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be 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 will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

[0035] Although this article uses the following terms more often: 1, main counterweight; 1-1, cavity; 2, common weight block; 2-1, main body; 2-2, extension; 2-3, decompression groove; 3, movable counterweight block 1; 4, movable counterweight block 2; 4-1, stop groove; 5, tail frame; 5-1, installation base plate; 5-2, installation support plate; 5-3, installation side plate; 5-4, support plate; 6, stop bar; 7, stop plate, etc., it does not exclude the possibility of using other terms. These terms are used only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional restrictions is contrary to the spirit of the present invention.

Claims

1. A forklift counterweight structure, characterized in that: The invention comprises a main counterweight (1), a common mode weight block (2), a detachable movable counterweight block (1) (3), a detachable movable counterweight block (2) (4) and a tail frame (5); the movable counterweight block (1) (3) and the movable counterweight block (2) are sequentially arranged and installed in a cavity (1-1) formed by the tail frame (5), the main counterweight (1) and the common mode weight block (2).

2. A forklift counterweight structure according to claim 1, characterized in that: The movable counterweight block 1 (3) and the movable counterweight block 2 (4) are both in the form of multiple single blocks; the movable counterweight block 2 (4) is in the form of a flat plate, so that multiple movable counterweight blocks 2 (4) can be stacked on top of the movable counterweight block 1 (3) or the tail frame (5) and located below the common mode weight block (2).

3. A forklift counterweight structure according to claim 1, characterized in that: The common mode weight (2) is a symmetrical structure, comprising a main body (2-1) and an extension part (2-2), wherein the two extension parts (2-2) are symmetrically arranged along the central axis of the main body (2-1).

4. A forklift counterweight structure according to claim 3, characterized in that: The main body (2-1) is cut to form a pressure relief groove (2-3), the pressure relief groove (2-3) is located at the center of the top of the main body (2-1), and the arrangement direction of the pressure relief groove (2-3) is consistent with the installation direction of the common mode weight block (2).

5. The forklift counterweight structure according to claim 3, characterized in that: The movable counterweight block 2 (4) is a cubic structure and has a retaining groove (4-1) formed on its side for installing a retaining bar (6). Two movable counterweight blocks 2 (4) adjacent to each other can be arranged in close contact with each other.

6. A forklift counterweight structure according to claim 3, characterized in that: The two adjacent movable counterweight blocks (3) can be arranged in a close fit.

7. A forklift counterweight structure according to claim 6, characterized in that: The tail frame (5) comprises a mounting base plate (5-1), a mounting support plate (5-2) and a mounting side plate (5-3); two mounting support plates (5-2) are vertically mounted on both sides of the mounting base plate (5-1); the top surfaces of the two mounting support plates (5-2) are located on the same plane to form a mounting plane for the second movable counterweight block (4) to be stacked in sequence; and the mounting side plate (5-3) is connected between the mounting base plate (5-1) and the mounting support plate (5-2).

8. A forklift counterweight structure according to claim 7, characterized in that: The shape formed by the two mounting side plates (5-3) and the mounting bottom plate (5-1) is compatible with the shape of the movable counterweight block one (3) and is used to support the movable counterweight block one (3).

9. The forklift counterweight structure according to claim 1, characterized in that: The main counterweight (1) and the common-mode weight block (2) are integrally cast.

10. A forklift, characterized in that: A forklift counterweight structure comprising any one of claims 1 to 9.

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