Arm section packaging tool and arm section packaging structure

Abstract

The utility model relates to the field of engineering machinery, in particular to an arm section packaging tool and an arm section packaging structure.The arm section packaging tool comprises a middle connecting rod, a first arm section connecting piece and a second arm section connecting piece, the middle connecting rod is arranged in the longitudinal direction, and the axial length of the middle connecting rod is adjustable; the first arm section connecting piece is fixedly connected to the first end of the middle connecting rod; the second arm section connecting piece is fixedly connected to the second end of the middle connecting rod, and the connecting position is adjustable in the transverse direction. By means of the arm section packaging tool capable of being longitudinally and transversely adjusted, the multi-arm-section suspension arm can be rapidly bundled and assembled, the overall appearance size of the multi-arm-section suspension arm can meet the container entering requirement of a marine container, multiple arm sections can be contained in the same standard container, the use amount of the container is reduced, and the export transportation cost is reduced; the posture is adjustable, the size is controllable, and the operation difficulty in the packaging process is reduced; the arm sections are fixed through the U-shaped hoops, and the risk that bales fall off during transportation is reduced.

Description

Technical Field

[0001] This application belongs to the field of engineering machinery, and specifically relates to a boom segment packaging tool and boom segment packaging structure. Background Technology

[0002] The tower crane jib is one of the most critical components of a tower crane. Currently, most tower crane jib sections are truss structures, typically with triangular or quadrilateral truss cross-sections, to meet the lifting and load-bearing capacity requirements of the jib and the entire crane. With the continuous expansion of the tower crane overseas market, container shipping has become the most mainstream mode of transportation. The type of container (standard or special) and the quantity of each type required for a single standard-configuration tower crane directly affect the cost of exporting the tower crane by sea. To meet the needs of overseas export logistics and relocation operations throughout the tower crane's lifecycle, the tower crane jib must be disassembled into jib sections. These sections are then bundled and adjusted in height, shape, and orientation to maximize the use of standard transport vehicles in terms of dimensions and load capacity. This maximizes the utilization of transport space, reduces logistics costs, improves safety and reliability during transshipment, and reduces the risk of cargo damage during transport.

[0003] In the past, the packing process involved using a single-arm crate to load standard containers. While this method was convenient and easy to push the containers in, it resulted in significant wasted space in standard containers and higher freight costs. Other methods employed included... Figure 1a The double-arm, upright, strapping method for loading into the box involved manual brute force using wooden blocks, steel straps, and fiber straps. While the loading process was smooth, the complexity of raising the wooden blocks and strapping the steel straps led to wasted materials, increased labor costs, and difficulty in controlling the dimensions, potentially causing loading difficulties or failures. Subsequent methods employed... Figure 1b The double-arm inclined posture method for loading into containers is difficult to advance, requiring two sections to be loaded separately, wasting time and increasing the risk of cargo damage. The dunnage is complex and costly to manufacture, and post-loading posture adjustment is difficult, dimensional control is challenging, and loading failure is common. In addition, existing technologies also employ methods such as... Figure 1c The traditional double-arm, oblique-position side-mounted loading method for container loading presents challenges. Adjusting the positioning and dimensions of the bundled packages within the container is difficult, leading to loading failures. Furthermore, the inconsistent packaging posture makes them susceptible to scattering during transport due to vibration and bumps, resulting in arm damage. All of these loading methods suffer from varying degrees of loading difficulties, low efficiency, high costs, and significant risk of cargo damage. Therefore, a new loading method is needed to effectively address these issues, improve loading efficiency, reduce cargo damage risk, control costs, and ensure the safety of goods during transportation. Utility Model Content

[0004] In view of at least one defect or deficiency of the prior art, the present application provides an arm segment packaging tool and an arm segment packaging structure, which can improve the boxing efficiency, reduce the risk of goods damage, and ensure the safety of goods during transportation.

[0005] To achieve the above-mentioned purpose, in one aspect, the present application provides an arm segment packaging tool, comprising:

[0006] a middle connecting rod arranged in the longitudinal direction and having an adjustable axial length;

[0007] a first arm segment connecting piece fixedly connected to a first end of the middle connecting rod, the first arm segment connecting piece being used for connecting an arm segment;

[0008] a second arm segment connecting piece fixedly connected to a second end of the middle connecting rod and having an adjustable connection position in the transverse direction, the second arm segment connecting piece being used for connecting an arm segment.

[0009] In some embodiments, the middle connecting rod comprises:

[0010] a first connecting rod having a first end connected to the first arm segment connecting piece;

[0011] a second connecting rod having a first end connected to the second arm segment connecting piece;

[0012] a double-headed screw rod having two ends threadedly connected to a second end of the first connecting rod and a second end of the second connecting rod, respectively.

[0013] In some embodiments, the middle connecting rod further comprises:

[0014] a first locking nut threadedly connected to one end of the double-headed screw rod and abutting against the second end of the first connecting rod;

[0015] a second locking nut threadedly connected to the other end of the double-headed screw rod and abutting against the second end of the second connecting rod.

[0016] In some embodiments, the second arm segment connecting piece is formed with a sliding groove extending in the transverse direction, and the second end of the middle connecting rod is connected to the sliding groove in a lockable sliding fit through a fastener.

[0017] In some embodiments, the sliding groove is provided with a plurality of first connecting holes arranged in the transverse direction at intervals, the second end of the middle connecting rod is provided with a second connecting hole, and the fastener passes through the second connecting hole and any one of the plurality of first connecting holes.

[0018] In some embodiments, the first arm segment connector comprises a first fixed frame and a first U-shaped clamp, the first fixed frame is fixedly connected with the first end of the intermediate connecting rod, and the first U-shaped clamp is detachably connected on the first fixed frame and cooperatively defines a first clamping space for clamping chordal rods of arm segments.

[0019] In some embodiments, the second arm segment connector comprises a second fixed frame and a second U-shaped clamp, the second fixed frame is connected with a sliding connector, the sliding connector is formed with the sliding groove, and the second U-shaped clamp is detachably connected on the second fixed frame and cooperatively defines a second clamping space for clamping chordal rods of arm segments.

[0020] The second aspect of the present application provides an arm segment packaging structure comprising a first arm segment, a second arm segment and a plurality of arm segment packaging tools as described above;

[0021] The first arm segment and the second arm segment are arranged in a positive and reverse buckling manner;

[0022] The first arm segment comprises a first upper chordal rod and a first lower chordal rod, the second arm segment comprises a second upper chordal rod and a second lower chordal rod, at least one arm segment packaging tool is arranged between the second lower chordal rod of the second arm segment and the first upper chordal rod of the first arm segment and is fixedly connected with the first arm segment connector and the second arm segment connector of the arm segment packaging tool respectively, and at least one arm segment packaging tool is arranged between the second upper chordal rod of the second arm segment and the first lower chordal rod of the first arm segment and is fixedly connected with the first arm segment connector and the second arm segment connector of the arm segment packaging tool respectively.

[0023] In some embodiments, the arm segment packaging structure further comprises:

[0024] A third arm segment, the third arm segment comprises a third upper chordal rod and a third lower chordal rod;

[0025] The first arm segment is placed in a forward direction, and the second arm segment and the third arm segment are reversely buckled on both sides of the first arm segment; the first arm segment further comprises a fourth lower chordal rod;

[0026] At least one arm segment packaging tool is arranged between the third upper chordal rod of the third arm segment and the fourth lower chordal rod of the first arm segment and is fixedly connected with the first arm segment connector and the second arm segment connector of the arm segment packaging tool respectively, and at least one arm segment packaging tool is arranged between the third lower chordal rod of the third arm segment and the first upper chordal rod of the first arm segment and is fixedly connected with the first arm segment connector and the second arm segment connector of the arm segment packaging tool respectively.

[0027] In some embodiments, a plurality of arm section packing tools are arranged between the second lower chord of the second arm section and the first upper chord of the first arm section, and the plurality of arm section packing tools are arranged along the length direction of the first arm section; a plurality of arm section packing tools are arranged between the second upper chord of the second arm section and the first lower chord of the first arm section, and the plurality of arm section packing tools are arranged along the length direction of the second arm section.

[0028] By means of the technical scheme, the arm section packing tool comprises an intermediate connecting rod, a first arm section connecting piece and a second arm section connecting piece, the intermediate connecting rod is arranged in the longitudinal direction and has an adjustable axial length, the first arm section connecting piece is fixedly connected to the first end of the intermediate connecting rod, and the second arm section connecting piece is fixedly connected to the second end of the intermediate connecting rod and has an adjustable connection position in the transverse direction. The arm section packing tool can be adjusted in the longitudinal direction and the transverse direction, so that the multiple arm sections can be quickly baled and assembled, the overall shape size meets the requirements of sea shipping container loading, the multiple arm sections can be loaded into a standard container, the use of special containers is avoided, the export transportation cost is reduced, the labor and working hours for baling and container loading are reduced, and the consumption of auxiliary materials for baling is reduced. In addition, the baling posture can be adjusted by using the arm section packing tool, the shape size is controllable, the reliability of the overall baling and container loading of the multiple arm sections is enhanced, the arm section packing tool is simple and practical and has high universality, a single model device can be used in multiple quantities, the mistake-proofing and fool-proofing of the baling operation are improved, the operation difficulty and the dependence on the skills and experience of personnel are reduced, the multiple arm sections are baled as a reliable whole by using the arm section packing tool, the reliability and convenience of container loading and unloading are improved, the U-shaped hoop is used to fix the arm sections, and the risk of falling of the baled arm sections is reduced.

[0029] Other features and advantages of the embodiments of the present application will be described in detail in the following detailed description. BRIEF DESCRIPTION OF DRAWINGS

[0030] The accompanying drawings are included to provide a further understanding of the embodiments of the present application, and constitute a part of the specification, and are used to explain the embodiments of the present application together with the following detailed description, but do not constitute a limitation of the embodiments of the present application. For those skilled in the art, other drawings can be obtained from the structures shown in the drawings without creative labor. In the drawings:

[0031] Figure 1a It is a baling mode of the existing technology in the double-arm section vertical baling posture;

[0032] Figure 1b It is a baling mode of the existing technology in the double-arm section inclined posture cushioning mode;

[0033] Figure 1cThe embodiment of the utility model discloses a packing device for the double-arm knuckle oblique body posture side hanging mode in the prior art;

[0034] Figure 2 It is the front view of the arm knuckle packing tool of the utility model;

[0035] Figure 3 It is the side view of the arm knuckle packing tool of the utility model;

[0036] Figure 4 It is Figure 3 The enlarged view of A in the middle;

[0037] Figure 5 It is the front view of the arm knuckle packing tool of the utility model after adjustment;

[0038] Figure 6 It is the side view of the arm knuckle packing tool of the utility model after adjustment;

[0039] Figure 7 It is the structure diagram of one embodiment of the arm knuckle packing structure of the utility model;

[0040] Figure 8 It is Figure 7 The structure diagram of the arm knuckle packing tool after adjustment;

[0041] Figure 9 It is the structure diagram of another embodiment of the arm knuckle packing structure of the utility model;

[0042] Figure 10 It is Figure 9 The structure diagram of the arm knuckle packing tool after adjustment;

[0043] Explanation of reference signs

[0044] 1 arm knuckle packing tool 11 middle connecting rod

[0045] 111 first connecting rod 112 second connecting rod

[0046] 113 double-end screw 114 first locking nut

[0047] 115 second locking nut 116 connecting part

[0048] 12 first arm knuckle connecting piece 121 first fixed frame

[0049] 122 first U-shaped hoop

[0050] 13 second arm knuckle connecting piece 131 second fixed frame

[0051] 132 second U-shaped hoop 133 sliding connecting piece

[0052] 134 sliding groove 135 first connecting hole

[0053] 136 fastener

[0054] 2 first arm section 21 first upper chord

[0055] 22 first lower chord 23 fourth lower chord

[0056] 3 second arm section 31 second upper chord

[0057] 32 second lower chord

[0058] 4 third arm section 41 third upper chord

[0059] 42 third lower chord DETAILED DESCRIPTION

[0060] The specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely intended to illustrate and explain the present application, and are not intended to limit the present application.

[0061] The present application will be described in detail below with reference to the accompanying drawings and in conjunction with exemplary embodiments.

[0062] As shown in Figure 2 and Figure 3 , an arm section packaging tool 1 comprises a middle connecting rod 11, a first arm section connecting piece 12 and a second arm section connecting piece 13, the middle connecting rod 11 is longitudinally arranged and has an adjustable axial length; the first arm section connecting piece 12 is fixedly connected to a first end of the middle connecting rod 11, and is used for connecting an arm section; the second arm section connecting piece 13 is fixedly connected to a second end of the middle connecting rod 11 and has an adjustable connecting position in the transverse direction, and is used for connecting an arm section. As shown in Figure 5 and Figure 6 , the middle connecting rod 11 is longitudally arranged and has an adjustable axial length, and the second arm section connecting piece 13 is adjustable in the transverse direction, so that the arm section packaging tool 1 can adapt to arm sections of different sizes, and can adjust the assembly mode of the arm sections to adapt to the size of a standard box, the packaging posture is adjustable, the outer dimension is controllable, and the overall packaging and boxing reliability of multiple arm sections is enhanced; and the tool is simple to use and has strong versatility, can improve the mistake-proofing and fool-proofing of bundling work, and reduce the operation difficulty and dependence on personnel skills and experience.

[0063] As shown in Figure 4As shown in some embodiments, the intermediate connecting rod 11 comprises a first connecting rod 111, a second connecting rod 112, and a double-end screw 113, the first end of the first connecting rod 111 is connected with the first arm link connector 12; the first end of the second connecting rod 112 is connected with the second arm link connector 13; the two ends of the double-end screw 113 are respectively threadedly connected with the second end of the first connecting rod 111 and the second end of the second connecting rod 112.

[0064] Specifically, the intermediate connecting rod 11 is realized to be adjustable in length by the double-end screw 113, the first connecting rod 111 and the second connecting rod 112 are respectively threadedly connected with the two ends of the double-end screw 113, the length of the intermediate connecting rod 11 can be adjusted by rotation, and the length of the intermediate connecting rod 11 can be flexibly adjusted according to actual needs to adapt to different working conditions and application scenarios; the threaded connection is convenient for disassembly and maintenance, and is conducive to inspection, replacement or repair of each component.

[0065] In some embodiments, the intermediate connecting rod 11 further comprises a first locking nut 114 and a second locking nut 115, the first locking nut 114 is threadedly connected with one end of the double-end screw 113 and abuts against the second end of the first connecting rod 111; the second locking nut 115 is threadedly connected with the other end of the double-end screw 113 and abuts against the second end of the second connecting rod 112. Under the working condition of vibration or impact, the locking nut can effectively prevent displacement between the double-end screw 113 and the first connecting rod 111 and the second connecting rod 112 due to relative rotation, avoid the length of the intermediate connecting rod 11 from changing, and affect arm link transportation.

[0066] As shown in some embodiments, Figure 2 and Figure 4 As shown in some embodiments, the second arm link connector 13 is formed with a sliding groove 134 extending in the transverse direction, and the second end of the intermediate connecting rod 11 is connected with the sliding groove 134 in a lockable and fixed sliding fit by a fastener 136. The second end of the intermediate connecting rod 11 is formed with a protruding connecting part 116, the shape of the connecting part 116 is matched with the shape of the sliding groove 134, the connecting part 116 is slidingly connected with the sliding groove 134, so that the intermediate connecting rod 11 can be slidingly adjusted in the sliding groove 134.

[0067] In some embodiments, the groove wall of the sliding groove 134 is provided with a plurality of first connecting holes 135 arranged in the transverse direction, the second end of the intermediate connecting rod 11 is provided with a second connecting hole, i.e., the second connecting hole is arranged on the connecting part 116, and the fastener 136 passes through the second connecting hole and any one of the plurality of first connecting holes 135. The fastener 136 can be a locking bolt, which sequentially passes through the first connecting hole 135 on the second arm link connecting piece 13 and the second connecting hole on the second connecting rod 112, and is locked by a nut, so as to realize the fixation of the intermediate connecting rod 11 and the second arm link connecting piece 13. When the locking bolt and the nut are removed, the intermediate connecting rod 11 can be adjusted by sliding in the sliding groove 134.

[0068] In some embodiments, the first arm link connecting piece 12 includes a first fixed frame 121 and a first U-shaped hoop 122, the first fixed frame 121 is fixedly connected with the first end of the intermediate connecting rod 11, and the first U-shaped hoop 122 is detachably connected to the first fixed frame 121 and cooperates with the first fixed frame 121 to define a first clamping space for clamping the chord of the arm link. The second arm link connecting piece 13 includes a second fixed frame 131 and a second U-shaped hoop 132, the second U-shaped hoop 132 is detachably connected to the second fixed frame 131 and cooperates with the second fixed frame 131 to define a second clamping space for clamping the chord of the arm link. In use, the chord of the arm link is fixed in the first clamping space and the second clamping space to realize the packaging of the arm link.

[0069] In some embodiments, the first arm link connecting piece 12 includes a first fixed frame 121 and a first U-shaped hoop 122, the first fixed frame 121 is fixedly connected with the first end of the intermediate connecting rod 11, and the first U-shaped hoop 122 is detachably connected to the first fixed frame 121 and cooperates with the first fixed frame 121 to define a first clamping space for clamping the chord of the arm link. The second arm link connecting piece 13 includes two second fixed frames 131 and a second U-shaped hoop 132, the two second fixed frames 131 are arranged side by side and connected by a sliding connecting piece 133, the sliding connecting piece 133 is formed with a sliding groove 134, and the two second U-shaped hoops 132 are detachably connected to the two second fixed frames 131 and cooperates with the two second fixed frames 131 to define a second clamping space for clamping the chord of the arm link. In use, the chord of the arm link is fixed in the first clamping space and the second clamping space by the arm link packaging tool 1 to package and assemble a plurality of arm links into a reliable whole. In actual application, the number of fixed frames and U-shaped hoops can be one or more according to actual conditions.

[0070] The application also provides an arm link packaging structure, which includes an arm link packaging tool 1 and a plurality of arm links 2. Figure 7As shown, the arm section packing structure comprises a first arm section 2, a second arm section 3, and a plurality of arm section packing tools 1 as described above; wherein the first arm section 2 and the second arm section 3 are arranged in a positive-negative clamping manner; the first arm section 2 comprises a first upper chord 21 and a first lower chord 22, the second arm section 3 comprises a second upper chord 31 and a second lower chord 32, at least one arm section packing tool 1 is arranged between the second lower chord 32 of the second arm section 3 and the first upper chord 21 of the first arm section 2 and is fixedly connected with the first arm section connecting piece 12 and the second arm section connecting piece 13 of the arm section packing tool 1 respectively, and at least one arm section packing tool 1 is arranged between the second upper chord 31 of the second arm section 3 and the first lower chord 22 of the first arm section 2 and is fixedly connected with the first arm section connecting piece 12 and the second arm section connecting piece 13 of the arm section packing tool 1 respectively. Specifically, the arm section packing tool 1 fixes the chords of the arm section through the U-shaped hoop and the fixing frame on the first arm section connecting piece 12 and the second arm section connecting piece 13, so as to realize the packing of the arm section. As shown in Figure 8 As shown, the arm section packing tool 1 can be adjusted horizontally and vertically to change the position of the arm section, and the size of the combined arm section package is adjusted by adjusting the arm section packing tool 1, so as to meet the size requirements of the container.

[0071] As shown in Figure 9 In some embodiments, the arm section packing structure further comprises a third arm section 4, the third arm section 4 comprises a third upper chord 41 and a third lower chord 42; the first arm section 2 is placed in a positive direction, and the second arm section and the third arm section 4 are clamped on both sides of the first arm section 2 in a reverse direction; the first arm section 2 further comprises a fourth lower chord 23; at least one arm section packing tool 1 is arranged between the third upper chord 41 of the third arm section 4 and the fourth lower chord 23 of the first arm section 2 and is fixedly connected with the first arm section connecting piece 12 and the second arm section connecting piece 13 of the arm section packing tool 1 respectively, and at least one arm section packing tool 1 is arranged between the third lower chord 42 of the third arm section 4 and the first upper chord 21 of the first arm section 2 and is fixedly connected with the first arm section connecting piece 12 and the second arm section connecting piece 13 of the arm section packing tool 1 respectively. As shown in Figure 10 As shown, the arm section packing tool 1 can be adjusted horizontally and vertically to change the position of the arm section, and the size of the combined arm section package is adjusted by adjusting the arm section packing tool 1, so as to meet the size requirements of the container.

[0072] In some embodiments, a plurality of arm segment packing tools 1 are arranged between the second lower chord 32 of the second arm segment and the first upper chord 21 of the first arm segment 2, and are arranged at intervals along the length direction of the first arm segment 2; a plurality of arm segment packing tools 1 are arranged between the second upper chord 31 of the second arm segment and the first lower chord 22 of the first arm segment 2, and are arranged at intervals along the length direction of the second arm segment, so as to maintain the stability in the length direction of the arm segment. Similarly, a plurality of arm segment packing tools 1 are arranged between the third upper chord 41 of the third arm segment 4 and the fourth lower chord 23 of the first arm segment 2, and are arranged at intervals along the length direction of the third arm segment 4; a plurality of arm segment packing tools 1 are arranged between the third lower chord 42 of the third arm segment 4 and the first upper chord 21 of the first arm segment 2, and are arranged at intervals along the length direction of the third arm segment 4, so as to maintain the stability in the length direction of the arm segment.

[0073] It should be noted that, in the present application, the positional words such as "upper", "lower", "left", "right" and the like indicate the positional or location relationship based on the positional or location relationship shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the devices or elements indicated must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0074] It can be understood by those skilled in the art that the present application is not limited to the double-end screw rod described above, and other structural forms capable of adjusting the length of the intermediate connecting rod also belong to the protection scope of the present application.

[0075] In the description of the present application, it should be understood that the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0076] In the present application, unless otherwise specifically specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, can be fixedly connected, or can be detachably connected, or can be integrated; can be mechanically connected, or can be electrically connected or can communicate with each other; can be directly connected, or can be indirectly connected through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise specifically limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0077] In the description of the specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are contained in at least one embodiment or example of the present application. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any suitable manner in any one or more embodiments or examples. In addition, the person skilled in the art can combine and combine the different embodiments or examples described in the specification and the features of the different embodiments or examples without contradiction.

[0078] Although the embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and are not to be construed as limiting the present application, and the person skilled in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the present application.

Claims

1. A type of arm-joint packaging fixture, characterized in that, include: An intermediate connecting rod (11) is arranged longitudinally and its axial length is adjustable; The first arm section connector (12) is fixedly connected to the first end of the intermediate connecting rod (11) and is used to connect the arm section. The second arm section connector (13) is fixedly connected to the second end of the intermediate connecting rod (11) and the connection position is adjustable in the lateral direction. The second arm section connector (13) is used to connect the arm section.

2. The arm segment packaging fixture according to claim 1, characterized in that, The intermediate connecting rod (11) includes: The first connecting rod (111) has its first end connected to the first arm joint connector (12); The second connecting rod (112) has its first end connected to the second arm joint connector (13); A double-ended screw (113) is provided, the two ends of which are threadedly connected to the second end of the first connecting rod (111) and the second end of the second connecting rod (112), respectively.

3. The arm segment packaging fixture according to claim 2, characterized in that, The intermediate connecting rod (11) also includes: The first locking nut (114) is threaded to one end of the double-ended screw (113) and abuts against the second end of the first connecting rod (111); The second locking nut (115) is threaded to the other end of the double-ended screw (113) and abuts against the second end of the second connecting rod (112).

4. The arm segment packaging fixture according to claim 1, characterized in that, The second arm joint connector (13) has a laterally extending groove (134), and the second end of the intermediate connecting rod (11) is connected to the groove (134) by a fastener (136) to form a lockable sliding fit connection.

5. The arm segment packaging fixture according to claim 4, characterized in that, The groove (134) has a plurality of first connecting holes (135) arranged laterally at intervals on the groove wall. The second end of the intermediate connecting rod (11) has a second connecting hole. The fastener (136) passes through the second connecting hole and any one of the plurality of first connecting holes (135).

6. The arm segment packaging fixture according to claim 1, characterized in that, The first arm joint connector (12) includes a first fixing frame (121) and a first U-shaped clamp (122). The first fixing frame (121) is fixedly connected to the first end of the intermediate connecting rod (11). The first U-shaped clamp (122) is detachably connected to the first fixing frame (121) and together with the first fixing frame (121) defines a first clamping space for clamping the chord of the arm joint.

7. The arm segment packaging fixture according to claim 4, characterized in that, The second arm joint connector (13) includes a second fixing frame (131) and a second U-shaped clamp (132). The second fixing frame (131) is connected to a sliding connector (133), and the sliding connector (133) has the groove (134) formed on it. The second U-shaped clamp (132) is detachably connected to the second fixing frame (131) and together with the second fixing frame (131), defines a second clamping space for clamping the chord of the arm joint.

8. A boom-joint packaging structure, characterized in that, It includes a first arm section (2), a second arm section (3), and a plurality of arm section packaging fixtures (1) as described in any one of claims 1-7; The first arm segment (2) and the second arm segment (3) are arranged in a front-facing and back-facing interlocking configuration; The first arm section (2) includes a first upper chord (21) and a first lower chord (22), and the second arm section (3) includes a second upper chord (31) and a second lower chord (32). At least one arm section packing fixture (1) is provided between the second lower chord (32) of the second arm section (3) and the first upper chord (21) of the first arm section (2), and is fixedly connected to the first arm section connector (12) and the second arm section connector (13) of the arm section packing fixture (1), respectively. At least one arm section packing fixture (1) is provided between the second upper chord (31) of the second arm section (3) and the first lower chord (22) of the first arm section (2), and is fixedly connected to the first arm section connector (12) and the second arm section connector (13) of the arm section packing fixture (1), respectively.

9. The arm-joint packaging structure according to claim 8, characterized in that, The arm segment packaging structure also includes: The third arm section (4) includes a third upper chord (41) and a third lower chord (42); The first arm section (2) is placed facing forward, and the second arm section (3) and the third arm section (4) are fastened to the two sides of the first arm section (2) in opposite directions; the first arm section (2) also includes a fourth lower chord (23); At least one arm section packing fixture (1) is provided between the third upper chord (41) of the third arm section (4) and the fourth lower chord (23) of the first arm section (2), and is fixedly connected to the first arm section connector (12) and the second arm section connector (13) of the arm section packing fixture (1), respectively. At least one arm section packing fixture (1) is provided between the third lower chord (42) of the third arm section (4) and the first upper chord (21) of the first arm section (2), and is fixedly connected to the first arm section connector (12) and the second arm section connector (13) of the arm section packing fixture (1), respectively.

10. A boom-joint packaging structure according to claim 8, characterized in that, A plurality of arm section packing fixtures (1) are provided between the second lower chord (32) of the second arm section (3) and the first upper chord (21) of the first arm section (2), and the plurality of arm section packing fixtures (1) are spaced apart along the length direction of the first arm section (2); a plurality of arm section packing fixtures (1) are provided between the second upper chord (31) of the second arm section (3) and the first lower chord (22) of the first arm section (2), and the plurality of arm section packing fixtures (1) are spaced apart along the length direction of the second arm section (3).

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