A frame type spreader for a car crane

Abstract

The utility model belongs to the technical field of automobile crane, especially a kind of frame type lifting appliance for automobile crane, including frame body and inclined strut beam, the frame body is annular structure, the frame body includes crossbeam and stringer, the end of inclined strut beam is set on the crossbeam and stringer junction of frame body, and it is detachably connected between inclined strut beam, crossbeam and stringer;The end of crossbeam is equipped with the insertion slot, and the both ends of inclined strut beam are equipped with the insertion block matched with insertion slot;Insertion piece, upper lifting lug and lower lifting lug are equipped on stringer.The frame type lifting appliance for automobile crane has the advantages of easy assembly and use, and good structural stability and high structural strength. By using inclined strut beam as the inner support of frame body, the overall structural stability and structural strength of frame body can be improved, and the structural stability of the connection between stringer and crossbeam can also be improved, ensuring the structural strength of the connection between stringer and crossbeam.

Description

Technical Field

[0001] This utility model belongs to the field of truck crane technology, and in particular relates to a frame-type lifting device for truck cranes. Background Technology

[0002] Truck cranes, as one of the most mobile lifting equipment, are widely used in municipal emergency repairs, pipe gallery laying, equipment maintenance, and high-rise building component hoisting. These types of operations are generally characterized by "multiple dispersed locations, diverse lifting points, and frequent site changes," requiring the lifting equipment to be able to quickly adapt to components of different specifications and lifting points, and to move efficiently with the main unit, in order to maximize the mobility advantage of truck cranes: "arrive and lift immediately, lift and leave immediately."

[0003] Currently, conventional assembled frame lifting equipment is mostly assembled from steel sections connected by bolts, with several fixed lifting lugs on the bottom or sides to simultaneously attach multiple slings. Although conventional assembled frame lifting equipment can meet the requirements for stable lifting of large-volume and heavy components to a certain extent, the structural strength is still insufficient when the connection between the crossbeams and longitudinal beams relies solely on bolts, affecting the rigidity and stability of the frame lifting equipment. Utility Model Content

[0004] In view of this, the present invention aims to propose a frame-type lifting device for truck cranes to solve the problem of insufficient structural strength at the connection between the crossbeam and the longitudinal beam in existing conventional assembled frame lifting devices.

[0005] To achieve the above objectives, the technical solution of this utility model is implemented as follows: A frame-type lifting device for a truck crane includes a frame body and diagonal bracing beams. The frame body has a ring structure and includes a crossbeam and a longitudinal beam. The ends of the diagonal bracing beams are positioned at the connection points between the crossbeams and longitudinal beams on the frame body. The diagonal bracing beams, crossbeams, and longitudinal beams are detachably connected. The ends of the crossbeams are provided with insertion slots, and both ends of the diagonal bracing beams are provided with insertion blocks that mate with the insertion slots. The longitudinal beams are provided with insertion connectors, upper lifting lugs, and lower lifting lugs. One end of the insertion connector is connected to the longitudinal beam, and the other end is provided with a slot that mates with the end of the crossbeam. The upper lifting lugs are positioned at the connection points between the insertion connectors and the longitudinal beams, with one end connected to the insertion connector and the other end connected to the longitudinal beam. The insertion connectors are provided with detachable connectors, the crossbeams are provided with assembly holes that mate with the connectors, and the insertion blocks are provided with mounting holes that mate with the connectors.

[0006] Furthermore, one end of the plug-in block extending out of the plug-in slot is provided with a bent portion that can cooperate with the end of the longitudinal beam, and the other end is connected to the diagonal brace beam.

[0007] Furthermore, the connector has a first side opening on one side that mates with the bent portion, and a second side opening on the other side that mates with the diagonal brace beam. Both the first side opening and the second side opening are connected to the slot.

[0008] Furthermore, the connector is connected to the longitudinal beam via a reinforcing plate, with one end of the reinforcing plate connected to the connector and the other end connected to the longitudinal beam.

[0009] Furthermore, two reinforcing plates are provided above and below the bending portion, and there is a positioning gap between the two reinforcing plates that cooperates with the bending portion. The positioning gap is connected to the first side opening.

[0010] Furthermore, auxiliary lifting lugs are provided above the inclined brace beam.

[0011] Furthermore, each of the positions corresponding to the plug-in blocks on the diagonal brace beam is provided with a limiting part for abutting against the limiting crossbeam.

[0012] Compared with the prior art, the frame-type lifting device for truck cranes described in this utility model has the following advantages: This utility model discloses a frame-type lifting device for truck cranes, which has the advantages of easy assembly and use, good structural stability, and high structural strength. By using diagonal bracing beams as internal supports for the frame body, not only can the overall structural stability and strength of the frame body be improved, but the diagonal bracing beams can also improve the structural stability of the connection between the longitudinal beams and the transverse beams, ensuring the structural strength of the connection between the longitudinal beams and the transverse beams. By setting plug-in blocks at the ends of the diagonal bracing beams, and utilizing the plug-in blocks to cooperate with the plug-in slots on the transverse beams, and utilizing the bent parts of the plug-in blocks to cooperate with the longitudinal beams, not only can the plug-in blocks, transverse beams, and longitudinal beams be nested and connected, improving the structural strength of the connection, but the bent parts, by abutting against the ends of the longitudinal beams, can effectively prevent swaying at the connection, thus improving the stability and reliability of this lifting device during the lifting process. Attached Figure Description

[0013] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings: Figure 1 This is a structural schematic diagram of a frame-type lifting device for a truck crane according to an embodiment of the present utility model; Figure 2 This is a structural diagram of a frame-type lifting device for a truck crane with two diagonal bracing beams, as described in an embodiment of this utility model. Figure 3 This is a schematic diagram of the connection between the crossbeam and the longitudinal beam in a frame-type lifting device for a truck crane according to an embodiment of this utility model; Figure 4This is an exploded structural diagram of the connector in a frame-type lifting device for a truck crane according to an embodiment of the present invention.

[0014] Explanation of reference numerals in the attached figures: 1. Diagonal bracing beam; 2. Longitudinal beam; 3. Crossbeam; 4. Connector; 5. Upper lifting lug; 6. Reinforcing plate; 7. Connector; 8. Auxiliary lifting lug; 9. Connector block; 10. Bolt hole; 11. Bend; 12. Connector groove; 13. Assembly hole; 14. Positioning gap; 15. First side opening; 16. Second side opening; 17. Slot; 18. Mounting hole; 19. Lower lifting lug. Detailed Implementation

[0015] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments of the present invention can be combined with each other.

[0016] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0017] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0018] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0019] A frame-type lifting device for truck cranes, such as Figures 1 to 4As shown, the structure includes a frame body and a diagonal bracing beam 1. The frame body is a ring structure, comprising a crossbeam 3 and a longitudinal beam 2. The end of the diagonal bracing beam 1 is positioned at the connection point between the crossbeam 3 and the longitudinal beam 2 on the frame body. The diagonal bracing beam 1, the crossbeam 3, and the longitudinal beam 2 are detachably connected. The end of the crossbeam 3 is provided with a insertion groove 12, and both ends of the diagonal bracing beam 1 are provided with insertion blocks 9 that mate with the insertion groove 12. The longitudinal beam 2 is provided with an insertion piece 4, an upper lifting lug 5, and a lower lifting lug 19. One end of the connector 4 is connected to the longitudinal beam 2, and the other end is provided with a slot 17 that can cooperate with the end of the crossbeam 3. The upper lifting lug 5 is provided at the connection between the connector 4 and the longitudinal beam 2. One end of the upper lifting lug 5 is connected to the connector 4, and the other end is connected to the longitudinal beam 2. The connector 4 is provided with a detachable connector 7. The crossbeam 3 is provided with an assembly hole 13 that cooperates with the connector 7. The connector block 9 is provided with an installation hole 18 that cooperates with the connector 7. The installation hole 18 is connected to the assembly hole 13.

[0020] During assembly, the connector 9 is first inserted into the connector slot 12 of the crossbeam 3, and the connection between the connector 9 and the connector slot 12 is achieved, thus ensuring a stable connection between the diagonal bracing beam 1 and the crossbeam 3. Then, the operator can connect the crossbeam 3 to the longitudinal beam 2. At this point, the crossbeam 3 and the longitudinal beam 2 form the frame body, while the diagonal bracing beam 1 serves as an internal support for the frame body. This improves the overall rigidity and structural strength of the lifting device, ensuring structural stability during use.

[0021] Specifically, both the upper lifting lug 5 and the lower lifting lug 19 are fixed to the longitudinal beam 2, the plug-in block 9 is fixed to both ends of the diagonal brace beam 1, and the plug-in component 4 is fixed to the longitudinal beam 2. By setting the upper lifting lug 5 at the connection between the plug-in component 4 and the longitudinal beam 2, with one end of the upper lifting lug 5 fixedly connected to the plug-in component 4 and the other end fixedly connected to the longitudinal beam 2, it not only helps to distribute the force on the upper lifting lug 5, allowing the tension of the upper lifting lug 5 to be evenly distributed to the connection between the crossbeam 3 and the longitudinal beam 2 during hoisting, but also improves the structural strength of the connection between the plug-in component 4 and the longitudinal beam 2, ensuring that the plug-in component 4 is always stably fixed to the longitudinal beam 2, thus improving the stability of the connection between the longitudinal beam 2 and the crossbeam 3.

[0022] In addition, two upper lifting lugs 5 can be provided at the front and rear ends of each longitudinal beam 2, and multiple lower lifting lugs 19 can be provided at intervals along the length of the longitudinal beam 2 to meet different lifting requirements. After this lifting device is assembled, four upper lifting lugs 5 can be formed around the lifting device to facilitate the connection of the lifting rope of the truck crane, while multiple lower lifting lugs 19 can be formed at the bottom of the lifting device for connecting the lifted components.

[0023] In practical applications, the assembly hole 13 is connected to the mounting hole 18 through the insertion slot 12. By setting the insertion slot 12 to correspond to the end of the crossbeam 3, after the insertion block 9 is inserted into the insertion slot 12, the operator can also insert the end of the crossbeam 3 into the slot 17 of the insertion piece 4. The connection between the insertion block 9 and the crossbeam 3, the crossbeam 3 and the longitudinal beam 2, and the insertion block 9 and the longitudinal beam 2 can be achieved by using the connector 7. Under the nested arrangement of the insertion block 9, the crossbeam 3, and the longitudinal beam 2, the structural strength at the connection between the longitudinal beam 2 and the crossbeam 3 will be higher.

[0024] Optionally, one diagonal brace 1 can be provided, or two can be provided in an X-shape. When two diagonal brace 1 are provided in an X-shape, in order to ensure that the two diagonal brace 1 are located on the same plane, a receiving groove that can cooperate with each other can be provided in the middle of the diagonal brace 1. The two diagonal brace 1 can also be connected by conventional detachable methods such as bolts, which is beneficial to improving the structural strength of the diagonal brace 1 after assembly and providing a more stable internal support for the frame body. Those skilled in the art can set it according to actual needs, which will not be elaborated here.

[0025] Optionally, the connector 7 can be a connecting bolt. The longitudinal beam 2 is provided with bolt holes 10, which are connected to the slot 17. The connecting bolt passes through the assembly hole 13, the mounting hole 18, and the end of the bolt hole 10 to install a fixing nut. Those skilled in the art can also select other suitable connectors 7 according to actual needs to achieve a detachable connection between the longitudinal beam 2, the cross beam 3, and the plug block 9. This will not be elaborated here.

[0026] Preferably, one end of the plug-in block 9 extending out of the plug-in slot 12 is provided with a bent portion 11 that can cooperate with the end of the longitudinal beam 2, and the other end is connected to the diagonal bracing beam 1. Specifically, the plug-in block 9 is an L-shaped structural component, one end of the plug-in block 9 is fixed to the diagonal bracing beam 1, and the other end is a bent portion 11. The end of the longitudinal beam 2 has a right angle or opening that cooperates with the bent portion 11.

[0027] In practical applications, the bent portion 11 on the plug-in block 9 not only improves the structural strength of the plug-in block 9 itself and prevents the plug-in block 9 from deforming under stress, but also forms a mortise-and-tenon structure at the connection between the longitudinal beam 2 and the cross beam 3 by abutting against the end of the longitudinal beam 2. This helps to improve the structural stability of the connection between the diagonal brace beam 1 and the longitudinal beam 2, as well as the connection between the diagonal brace beam 1 and the cross beam 3, and avoids shaking at the above-mentioned connection points, thereby ensuring the stability and reliability of this lifting device during the lifting process.

[0028] Preferably, the connector 4 has a first side opening 15 on one side that mates with the bent portion 11, and a second side opening 16 on the other side that mates with the diagonal brace 1. Both the first side opening 15 and the second side opening 16 are connected to the slot 17. By providing the first side opening 15 and the second side opening 16, the mating length between the connector 4 and the connector block 9 and the diagonal brace 1 is extended, allowing the connector 4 to not only mate with the end of the crossbeam 3, but also directly mate with the diagonal brace 1. The connector 4 forms a three-layer structure in the middle and a two-layer structure on both sides, which helps to distribute the stress. Moreover, this structure has better resistance to torsion when subjected to torsional forces, avoiding deformation at the connection between the crossbeam 3 and the longitudinal beam 2, thereby ensuring the overall structural stability of the frame.

[0029] Preferably, the connector 4 is connected to the longitudinal beam 2 via a reinforcing plate 6. One end of the reinforcing plate 6 is connected to the connector 4, and the other end is connected to the longitudinal beam 2. For example, one end of the reinforcing plate 6 is fixed to the longitudinal beam 2, and the other end is fixed to the connector 4. By using the reinforcing plate 6 to connect the longitudinal beam 2 and the connector 4, the connector 4 strengthens the structural strength at its connection with the longitudinal beam 2 in the horizontal direction through the reinforcing plate 6, and strengthens the structural strength at its connection with the longitudinal beam 2 in the vertical direction through the upper lifting lug 5. This further improves the stability of the connector 4, ensuring that the connector 4 can always stably limit the connection between the longitudinal beam 2 and the crossbeam 3.

[0030] In practical applications, two reinforcing plates 6 are arranged above and below the bending portion 11, with a positioning gap 14 between the two reinforcing plates 6 that mates with the bending portion 11. The positioning gap 14 communicates with the first side opening 15. By arranging two reinforcing plates 6 at intervals and utilizing the positioning gap 14 between the reinforcing plates 6 to mate with the bending portion 11, not only is the contact length between the connector 4 and the connector block 9 increased, but the stress distribution between the connector block 9 and the connector 4 is also dispersed, which is beneficial to improving the structural strength of the connection between the connector 4 and the connector block 9.

[0031] Preferably, an auxiliary lifting lug 8 is provided above the diagonal bracing beam 1. Exemplarily, the auxiliary lifting lug 8 can be installed and fixed to the diagonal bracing beam 1 by conventional methods such as welding or bolts. During hoisting, the operator can connect the crane hook to the lifting rope, and then connect the lifting rope to the upper lifting lug 5 and the auxiliary lifting lug 8. The auxiliary lifting lug 8 distributes the force on the upper lifting lug 5, making the overall force distribution of the lifting device more uniform, which helps reduce the possibility of deformation or tilting of the lifting device.

[0032] Preferably, each of the positions on the diagonal bracing beam 1 corresponding to the insertion block 9 is provided with a limiting part for abutting and limiting the crossbeam 3. By using the limiting part to abut against the side wall of the crossbeam 3, it is beneficial to improve the structural strength and stability of the connection between the crossbeam 3 and the main beam component.

[0033] This utility model discloses a frame-type lifting device for truck cranes, which has the advantages of easy assembly and use, good structural stability, and high structural strength. By using diagonal bracing beams as internal supports for the frame body, not only can the overall structural stability and strength of the frame body be improved, but the diagonal bracing beams can also improve the structural stability of the connection between the longitudinal beams and the transverse beams, ensuring the structural strength of the connection between the longitudinal beams and the transverse beams. By setting plug-in blocks at the ends of the diagonal bracing beams, and utilizing the plug-in blocks to cooperate with the plug-in slots on the transverse beams, and utilizing the bent parts of the plug-in blocks to cooperate with the longitudinal beams, not only can the plug-in blocks, transverse beams, and longitudinal beams be nested and connected, improving the structural strength of the connection, but the bent parts, by abutting against the ends of the longitudinal beams, can effectively prevent swaying at the connection, thus improving the stability and reliability of this lifting device during the lifting process.

[0034] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A frame-type spreader for a spreader frame of a vehicle, characterized in that: The frame includes a frame body and a diagonal bracing beam (1). The frame body is a ring structure and includes a crossbeam (3) and a longitudinal beam (2). The end of the diagonal bracing beam (1) is provided at the connection between the crossbeam (3) and the longitudinal beam (2) on the frame body. The diagonal bracing beam (1), the crossbeam (3), and the longitudinal beam (2) are detachably connected. The end of the crossbeam (3) is provided with a plug groove (12). Both ends of the diagonal bracing beam (1) are provided with plug blocks (9) that cooperate with the plug groove (12). The longitudinal beam (2) is provided with a plug fitting (4), an upper lifting lug (5), and a lower... The lifting lug (19) has one end of the plug-in (4) connected to the longitudinal beam (2) and the other end provided with a slot (17) that can cooperate with the end of the crossbeam (3). The upper lifting lug (5) is provided at the connection between the plug-in (4) and the longitudinal beam (2). One end of the upper lifting lug (5) is connected to the plug-in (4) and the other end is connected to the longitudinal beam (2). The plug-in (4) is provided with a detachable connector (7). The crossbeam (3) is provided with an assembly hole (13) that cooperates with the connector (7). The plug block (9) is provided with an installation hole (18) that cooperates with the connector (7).

2. A frame-type spreader for a spreader bar of a vehicle according to claim 1, characterized in that: The plug block (9) has a bent part (11) at one end extending out of the plug slot (12) that can cooperate with the end of the longitudinal beam (2), and the other end is connected to the diagonal brace beam (1).

3. A frame-type lifting device for a truck crane according to claim 2, characterized in that: The connector (4) has a first side opening (15) on one side that mates with the bent part (11), and a second side opening (16) on the other side that mates with the diagonal brace (1). Both the first side opening (15) and the second side opening (16) are connected to the slot (17).

4. A frame-type lifting device for a truck crane according to claim 3, characterized in that: The connector (4) is connected to the longitudinal beam (2) via a reinforcing plate (6). One end of the reinforcing plate (6) is connected to the connector (4), and the other end is connected to the longitudinal beam (2).

5. A frame-type lifting device for a truck crane according to claim 4, characterized in that: Two reinforcing plates (6) are provided above and below the bending part (11), and there is a positioning gap (14) between the two reinforcing plates (6) that cooperates with the bending part (11). The positioning gap (14) is connected to the first side opening (15).

6. A frame-type lifting device for a truck crane according to claim 1, characterized in that: An auxiliary lifting lug (8) is provided above the diagonal bracing beam (1).

7. A frame-type lifting device for a truck crane according to claim 1, characterized in that: The diagonal bracing beam (1) is provided with a limiting part at the position corresponding to the plug-in block (9) for abutting the limiting beam (3).

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