A folding counterweight frame for a crane

Abstract

This utility model discloses a folding counterweight frame for cranes, including a bottom frame and a top frame. A folding assembly is provided on the top of the bottom frame, and a combination assembly is provided on the outer side of the folding assembly. The folding assembly includes side plates, which are fixedly installed at the four corners of the top of the bottom frame. Folding rods are rotatably connected between corresponding side plates, and mounting rods are inserted into the top of the folding rods. This utility model relates to the field of crane technology. This folding counterweight frame for cranes, by setting the folding assembly and the combination assembly, enables the rapid disassembly and folding of the counterweight frame, effectively solving the problem of the large size of the counterweight frame and its inconvenience in carrying. When transportation or storage is required, the counterweight frame can be folded up, greatly reducing its space occupation, facilitating transportation and storage, and reducing transportation costs and storage difficulty.

Description

Technical Field

[0001] This utility model relates to the field of crane technology, specifically a folding counterweight frame for cranes. Background Technology

[0002] In the use of cranes, the counterweight frame plays a crucial role. It increases the stability of the crane and ensures that the crane will not overturn or cause dangerous situations due to the shift of the center of gravity when lifting heavy objects. However, existing crane counterweight frames are usually large in size, occupying a lot of space during transportation and storage, which brings many inconveniences to actual operation.

[0003] When it is necessary to move a crane to different work sites, the large volume of the counterweight rack not only increases transportation costs, but also makes the loading and unloading process more complicated. At the same time, the large volume also means that the counterweight rack needs a lot of space to be stored.

[0004] To address these issues, this invention provides a folding counterweight frame for cranes. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a folding counterweight frame for cranes, which solves the aforementioned problems.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a folding counterweight frame for a crane, including a bottom frame and a top frame, wherein a folding assembly is provided on the top of the bottom frame, and a combination assembly is provided on the outside of the folding assembly, wherein the folding assembly includes side plates, the side plates are fixedly installed at the four corners of the top of the bottom frame, and folding rods are rotatably connected between the corresponding side plates, and an installation rod is inserted into the top of the folding rod.

[0007] Preferably, a bolt is fixedly installed inside the top of the folding rod, and a through hole is opened inside the mounting rod, through which the bolt passes.

[0008] Preferably, folding rods and mounting rods are provided at the four corners of the top of the bottom frame, and a cross rod is fixedly installed on the inner side of the bottom frame.

[0009] Preferably, the assembly includes a top block, which is fixedly installed on the top of the mounting rod. A second screw is fixedly installed on the top of the top block. A second insertion hole is provided at each of the four corners of the top frame, and the second screw is inserted into the corresponding second insertion hole.

[0010] Preferably, a second nut is screwed onto the outer side of the second screw, and the second nut is attached to the top of the top frame, which is located directly above the bottom frame.

[0011] Preferably, a first screw is fixedly installed on the outer side of both the folding rod and the mounting rod, and a cross connecting rod is provided on the outer side of the folding rod and the mounting rod. A first insertion hole is opened inside the outer end of the cross connecting rod, and the first screw is inserted into the corresponding first insertion hole.

[0012] Preferably, a first nut is screwed onto the outer side of the first screw, and the first nut fits against the outer side of the first insertion hole.

[0013] Beneficial effects

[0014] This utility model provides a folding counterweight frame for cranes. Compared with the prior art, it has the following advantages:

[0015] 1. This crane uses a folding counterweight frame. By incorporating folding and assembly components, the counterweight frame can be quickly disassembled and folded, effectively solving the problem of its large size and inconvenience in carrying. When transportation or storage is required, the counterweight frame can be folded up, greatly reducing its space occupation, facilitating transportation and storage, and lowering transportation costs and storage difficulties.

[0016] 2. This crane uses a folding counterweight frame, which supports the counterweight block through the bottom frame. Folding rods and mounting rods serve as vertical support rods. The top frame combines multiple vertical support rods, and cross linkages are fixedly installed between the multiple vertical support rods to ensure the overall strength and stable support of the counterweight block. This ensures the stability and safety of the crane during operation and improves the crane's working performance. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a perspective view of the external structure of this utility model;

[0019] Figure 2 This is a perspective view of the disassembled cross linkage structure of this utility model;

[0020] Figure 3 This is a three-dimensional view of the disassembled top frame structure of this utility model;

[0021] Figure 4 This is a perspective view of the overall structure of the folding component of this utility model;

[0022] Figure 5This is a perspective view of the folding structure of the folding component of this utility model.

[0023] In the diagram: 1. Bottom frame; 2. Folding assembly; 21. Folding rod; 22. Mounting rod; 23. Side plate; 24. Bolt; 3. Assembly assembly; 31. Cross link; 32. First insertion hole; 33. First nut; 34. First screw; 35. Second screw; 36. Second insertion hole; 37. Second nut; 38. Top block; 4. Top frame. Detailed Implementation

[0024] It should be noted that in the description of the embodiments of this application, the terms "front," "rear," "left," "right," "up," "down," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application. The terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0025] The present application will be further described in detail below with reference to the accompanying drawings and embodiments.

[0026] Reference Figures 1 to 5 This application provides a folding counterweight frame for a crane, including a bottom frame 1 and a top frame 4. A folding assembly 2 is provided on the top of the bottom frame 1, and a combination assembly 3 is provided on the outside of the folding assembly 2. The folding assembly 2 includes side plates 23, which are fixedly installed at the four corners of the top of the bottom frame 1. Folding rods 21 are rotatably connected between the corresponding side plates 23, and mounting rods 22 are inserted into the top of the folding rods 21.

[0027] A bolt 24 is fixedly installed inside the top of the folding rod 21, and a through hole is opened inside the mounting rod 22, through which the bolt 24 passes. Folding rods 21 and mounting rods 22 are provided at the four corners of the top of the bottom frame 1, and a cross rod is fixedly installed on the inner side of the bottom frame 1.

[0028] The assembly 3 includes a top block 38, which is fixedly mounted on the top of the mounting rod 22. A second screw 35 is fixedly mounted on the top of the top block 38. Second insertion holes 36 are provided at each of the four corners of the top frame 4, and the second screw 35 is inserted into the corresponding second insertion hole 36. A second nut 37 is screwed onto the outside of the second screw 35, and the second nut 37 fits against the top of the top frame 4. The top frame 4 is located directly above the bottom frame 1.

[0029] Both the folding rod 21 and the mounting rod 22 are fixedly mounted with first screws 34 on their outer sides. A cross link 31 is provided on the outer sides of the folding rod 21 and the mounting rod 22. A first insertion hole 32 is opened inside the outer end of the cross link 31, and the first screw 34 is inserted into the corresponding first insertion hole 32. A first nut 33 is screwed onto the outer side of the first screw 34, and the first nut 33 fits against the outer side of the first insertion hole 32.

[0030] In this embodiment, when the device is in use, the counterweight is supported by the bottom frame 1, and the folding rod 21 and the mounting rod 22 serve as vertical support rods. The top frame 4 combines multiple vertical support rods, and the cross connecting rod 31 fixedly installed between the multiple vertical support rods ensures the overall strength, thereby achieving stable support for the counterweight. When folding the whole device, the first nut 33 is unscrewed, and after unscrewing, the cross connecting rod 31 is removed from the front of the first screw 34. After removing it, the second nut 37 is unscrewed, releasing the fixation between the top frame 4 and the second screw 35. The top frame 4 is then removed from the second screw 35. After removing it, the bolt 24 is removed from the folding rod 21, and the mounting rod 22 is removed from the folding rod 21. After removing it, the folding rod 21 is folded around the side plate 23 at a 90-degree angle, so that the folding rod 21 and the bottom frame 1 can be folded together, thereby completing the disassembly and folding of the entire counterweight frame, thus solving the problem of the large size of the counterweight frame and its inconvenience in carrying it.

[0031] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0032] Working principle:

[0033] Supporting working state: When the device is in use, first place the bottom frame 1 in a suitable position to support the counterweight. Then, install the folding rod 21 and the mounting rod 22 in sequence. The folding rod 21 is unfolded around the side plate 23 and fixed. The mounting rod 22 is inserted into the top of the folding rod 21 by bolts 24, so that the folding rod 21 and the mounting rod 22 act as vertical support rods. Then, the cross connecting rod 31 is put into the first screw 34 on the outside of the folding rod 21 and the mounting rod 22 through the first insertion hole 32, and the first nut 33 is tightened to fix the cross connecting rod 31 on the vertical support rod, thereby enhancing the overall stability. Finally, place the top frame 4 on top of the mounting rod 22, so that the second insertion holes 36 at the four corners of the top frame 4 are aligned with the second screw 35 at the top of the mounting rod 22. After inserting the second screw 35, tighten the second nut 37. The top frame 4 combines multiple vertical support rods to achieve stable support for the counterweight.

[0034] Folding working state: When the whole structure needs to be folded, first unscrew the first nut 33, then remove the cross link 31 from between the first screw 34, then unscrew the second nut 37 to release the fixation between the top frame 4 and the second screw 35, and remove the top frame 4 from the second screw 35. After that, remove the bolt 24 from the folding rod 21 and remove the mounting rod 22 from the folding rod 21. Finally, fold the folding rod 21 around the side plate 23 at a 90-degree angle so that the folding rod 21 is folded together with the bottom frame 1, thereby completing the disassembly and folding of the entire counterweight frame.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0036] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A folding counterweight frame for a crane, comprising a bottom frame (1) and a top frame (4), characterized in that: The bottom frame (1) is provided with a folding assembly (2) at the top, and a combination assembly (3) is provided on the outside of the folding assembly (2). The folding assembly (2) includes a side plate (23), which is fixedly installed at the four corners of the top of the bottom frame (1). Folding rods (21) are rotatably connected between the corresponding side plates (23), and an installation rod (22) is inserted into the top of the folding rod (21).

2. The folding counterweight frame for a crane according to claim 1, characterized in that: A bolt (24) is fixedly installed inside the top of the folding rod (21), and a through hole is opened inside the mounting rod (22), through which the bolt (24) passes.

3. A folding counterweight frame for a crane according to claim 1, characterized in that: The bottom frame (1) is provided with folding rods (21) and mounting rods (22) at the four corners of the top, and a cross rod is fixedly installed on the inner side of the bottom frame (1).

4. A folding counterweight frame for a crane according to claim 1, characterized in that: The assembly (3) includes a top block (38), which is fixedly installed on the top of the mounting rod (22). A second screw (35) is fixedly installed on the top of the top block (38). A second insertion hole (36) is provided at each of the four corners of the top frame (4), and the second screw (35) is inserted into the corresponding second insertion hole (36).

5. A folding counterweight frame for a crane according to claim 4, characterized in that: A second nut (37) is screwed onto the outside of the second screw (35), and the second nut (37) fits against the top of the top frame (4), which is located directly above the bottom frame (1).

6. A folding counterweight frame for a crane according to claim 1, characterized in that: The outer sides of the folding rod (21) and the mounting rod (22) are both fixedly installed with a first screw (34). The outer sides of the folding rod (21) and the mounting rod (22) are provided with a cross link (31). The outer end of the cross link (31) is provided with a first insertion hole (32). The first screw (34) is inserted into the corresponding first insertion hole (32).

7. A folding counterweight frame for a crane according to claim 6, characterized in that: A first nut (33) is screwed onto the outer side of the first screw (34), and the first nut (33) fits against the outer side of the first insertion hole (32).

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