A folding arm device and a folding arm connector

Abstract

The present application discloses a folding arm device and a folding arm connector thereof, which relate to the technical field of aerial work equipment. The folding arm connector comprises a central connecting member, a first seat plate, a second seat plate, a third seat plate, a fourth seat plate, a fifth seat plate and a sixth seat plate arranged in sequence on the outer periphery of the central connecting member along the axial direction of the central connecting member; two pins are respectively provided between the first seat plate and the second seat plate, between the second seat plate and the third seat plate, between the fourth seat plate and the fifth seat plate, and between the fifth seat plate and the sixth seat plate, and each pin is rotatably connected to the first folding arm, the two first connecting rods, the second folding arm and the two second connecting rods in a one-to-one correspondence. The above-mentioned folding arm connector has a simple, light and novel structure. The various rotation connection points thereof with the first folding arm, the first connecting rod, the second folding arm and the second connecting rod are located outside the overall structure, which is conducive to the reasonable layout of the rotation connection points, thereby making installation and disassembly more convenient and facilitating quick installation and disassembly.

Description

Technical Field

[0001] The present application relates to the technical field of aerial work equipment, and in particular to a folding arm connector and a folding arm device having the folding arm connector. Background Art

[0002] At present, in aerial work machinery and equipment, the folding arm device is a device that can extend, pitch and rotate. Its main function is to transport a certain number of operators and weight-limited tools to high altitudes to facilitate high-altitude operations such as equipment installation, maintenance, and cleaning.

[0003] like Figure 1 As shown, the folding arm device in the prior art includes a first folding arm 2, a first connecting rod 3, a second folding arm 4, a second connecting rod 5, and a folding arm connector 1, wherein the folding arm connector 1 is connected to the first folding arm 2, the first connecting rod 3, the second folding arm 4, and the second connecting rod 5, which is conducive to the folding arm device being in an expanded state when working and in a folded state when not working. However, most of the current folding arm connectors adopt a structural form of a welded box body surrounded by a plate + a hinged connection, and the hinge points are all set inside the outer surrounding plate. With such a setting method, the structure is complicated, and the layout of the various hinge points hinged to the first folding arm, the first connecting rod, the second folding arm, and the second connecting rod is unreasonable, resulting in complex installation and difficult disassembly when the first folding arm, the first connecting rod, the second folding arm, and the second connecting rod are connected to the folding arm connector.

[0004] Therefore, it is necessary for those skilled in the art to provide a folding arm connector that is simple in structure, lightweight, novel, and easy to install and disassemble with the first folding arm, the first connecting rod, the second folding arm, and the second connecting rod. Summary of the Invention

[0005] The purpose of the present application is to provide a folding arm connector with a simple and lightweight structure, and the articulation points of the first folding arm, the first connecting rod, the second folding arm and the second connecting rod are reasonably arranged, and are easy to install and disassemble. Another purpose of the present application is to provide a folding arm device including the above-mentioned folding arm connector.

[0006] To achieve the above objectives, the present application provides a folding arm connector, comprising:

[0007] Center connector;

[0008] The first seat plate, the second seat plate, the third seat plate, the fourth seat plate, the fifth seat plate and the sixth seat plate are sequentially arranged on the outer periphery of the central connecting member along the axial direction of the central connecting member;

[0009] Among them, two pin shafts are respectively provided between the first seat plate and the second seat plate, between the second seat plate and the third seat plate, between the fourth seat plate and the fifth seat plate, and between the fifth seat plate and the sixth seat plate, and each pin shaft is used for rotational connection with the two first folding arm bodies, the two first connecting rods, the two second folding arm bodies and the two second connecting rods of the second folding arm in a one-to-one corresponding manner.

[0010] In some embodiments, the first seat plate, the third seat plate, the fourth seat plate and the sixth seat plate have the same structure, and the second seat plate and the fifth seat plate have the same structure; the first seat plate and the sixth seat plate have the same orientation along the circumference of the central connecting member, the third seat plate and the fourth seat plate have the same orientation along the circumference of the central connecting member, and the orientations of the first seat plate and the third seat plate along the circumference of the central connecting member are staggered by a preset angle; the second seat plate and the fifth seat plate have the same orientation along the circumference of the central connecting member.

[0011] In some embodiments, the first seat plate, the third seat plate, the fourth seat plate and the sixth seat plate each include a first through hole and two first lug structures respectively arranged on both sides of the first through hole, and the first lug structure is provided with a first connecting hole connected to the corresponding pin shaft; the second seat plate and the fifth seat plate each include a second through hole and a second lug structure arranged on the outer periphery of the second through hole, and the second lug structure is provided with a second connecting hole connected to the corresponding pin shaft.

[0012] In some embodiments, the preset angle ranges from 30° to 60°.

[0013] In some embodiments, the central connecting member is a tubular member.

[0014] In some embodiments, the central connecting member is a round tube or a polygonal tube.

[0015] In some embodiments, the central connecting member is provided with a through hole for the pull rod whose ends are respectively rotatably connected to the first folding arm and the second folding arm to pass through.

[0016] In some embodiments, the central connecting piece is provided with a wire hole, which is located between the third seat plate and the fourth seat plate for allowing the power line to pass through.

[0017] In some embodiments, the first seat plate, the second seat plate, the third seat plate, the fourth seat plate, the fifth seat plate, the sixth seat plate and the central connecting member are welded into an integral structure.

[0018] The present application also provides a folding arm device, including a first folding arm, two first connecting rods, a second folding arm, two second connecting rods and a folding arm connector as described above, the two first folding arm bodies of the first folding arm, the two first connecting rods, the two second folding arm bodies of the second folding arm and the two second connecting rods are rotatably connected to each pin shaft in a one-to-one correspondence.

[0019] With respect to the above-mentioned background technology, the folding arm connector provided in the embodiment of the present application includes a central connecting member, a first seat plate, a second seat plate, a third seat plate, a fourth seat plate, a fifth seat plate and a sixth seat plate, wherein the first seat plate, the second seat plate, the third seat plate, the fourth seat plate, the fifth seat plate and the sixth seat plate are sequentially arranged on the outer periphery of the central connecting member along the axial direction of the central connecting member; wherein, two pins are respectively provided between the first seat plate and the second seat plate, between the second seat plate and the third seat plate, between the fourth seat plate and the fifth seat plate, and between the fifth seat plate and the sixth seat plate, and each pin is rotationally connected to the two first folding arm bodies, the two first connecting rods, the two second folding arm bodies and the two second connecting rods of the first folding arm in a one-to-one correspondence. It should be noted that when the first folding arm includes two first folding arm bodies and the second folding arm includes two second folding arm bodies, the two first folding arm bodies and the two second folding arm bodies are rotationally connected to the four pins in a one-to-one correspondence. In this way, the first folding arm, the first connecting rod, the second folding arm and the second connecting rod are respectively rotatably connected to the folding arm connector through the pin shaft. Compared with setting the rotation connection point inside the folding arm connector, the folding arm connector adopted in the embodiment of the present application has a simple, lightweight and novel structure. The rotation connection points of the first folding arm, the first connecting rod, the second folding arm and the second connecting rod are located outside the overall structure, which is conducive to the reasonable layout of the rotation connection points of the various components connected thereto, ensuring that each rotation connection point has a suitable relative position, thereby making the first folding arm, the first connecting rod, the second folding arm, the second connecting rod and the folding arm connector more convenient to install and disassemble, and facilitating the quick installation and disassembly of the first folding arm, the first connecting rod, the second folding arm and the second connecting rod, and the quick adjustment of the relative positions. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without any creative work.

[0021] Figure 1 It is a structural schematic diagram of a folding arm device in the prior art;

[0022] Figure 2 This is a schematic diagram of the folding arm device in the embodiment of the present application in the unfolded state;

[0023] Figure 3 This is a schematic diagram of the folding arm device in the embodiment of the present application in a folded state;

[0024] Figure 4 for Figure 1 A schematic structural diagram of a folding arm connector in the folding arm device shown;

[0025] Figure 5 for Figure 4 A schematic structural diagram of the folding arm connector from another angle is shown.

[0026] in:

[0027] 1- folding arm connector, 2- first folding arm, 3- first connecting rod, 4- second folding arm, 5- second connecting rod, 6- pull rod;

[0028] 11-center connecting piece, 111-through hole, 112-wire hole, 12-first seat plate, 121-first through hole, 122-first lug structure, 1221-first connecting hole, 13-second seat plate, 131-second through hole, 132-second lug structure, 1321-second connecting hole, 14-third seat plate, 15-fourth seat plate, 16-fifth seat plate, 17-sixth seat plate, 18-pin shaft. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0030] In order to enable those skilled in the art to better understand the present application, the present application is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0031] It should be noted that the directional terms such as "upper end, lower end, left side, right side" described below are all defined based on the drawings in the specification.

[0032] Please refer to Figures 2 to 5 , Figure 2 This is a schematic diagram of the folding arm device in the embodiment of the present application in the unfolded state; Figure 3 This is a schematic diagram of the folding arm device in the embodiment of the present application in a folded state;

[0033] Figure 4 for Figure 1 A schematic structural diagram of a folding arm connector in the folding arm device shown; Figure 5 for Figure 4 A schematic structural diagram of the folding arm connector from another angle is shown.

[0034] The folding arm connector 1 provided in the embodiment of the present application includes a central connector 11, a first seat plate 12, a second seat plate 13, a third seat plate 14, a fourth seat plate 15, a fifth seat plate 16, and a sixth seat plate 17. The first seat plate 12, the second seat plate 13, the third seat plate 14, the fourth seat plate 15, the fifth seat plate 16, and the sixth seat plate 17 are sequentially arranged on the outer periphery of the central connector 11 along the axial direction of the central connector 11.

[0035] In addition, two pins 18 are provided between the first seat plate 12 and the second seat plate 13, between the second seat plate 13 and the third seat plate 14, between the fourth seat plate 15 and the fifth seat plate 16, and between the fifth seat plate 16 and the sixth seat plate 17. Each pin 18 is rotationally connected to the two first folding arm bodies, the two first connecting rods 3, the two second folding arm bodies, and the two second connecting rods 5 of the second folding arm 4 in a one-to-one correspondence. Of course, the above-mentioned rotational connections can also be hinged.

[0036] It should be noted that when the first folding arm 2 includes two first folding arm bodies and the second folding arm 4 includes two second folding arm bodies, the two first folding arm bodies and the two second folding arm bodies are respectively connected to the four pins 18 in a one-to-one corresponding rotational manner.

[0037] In this way, the first folding arm 2, the first link 3, the second folding arm 4 and the second link 5 are respectively rotatably connected to the folding arm connector 1 through the pin shaft 18. Compared with setting the rotation connection point inside the folding arm connector 1, the folding arm connector 1 adopted in the embodiment of the present application has a simple, lightweight and novel structure. The rotation connection points of the first folding arm 2, the first link 3, the second folding arm 4 and the second link 5 are located outside the overall structure, which is conducive to the reasonable layout of the rotation connection points of the various components connected thereto, ensuring that each rotation connection point has a suitable relative position, thereby making it easier to install and disassemble the first folding arm 2, the first link 3, the second folding arm 4, the second link 5 and the folding arm connector 1, and facilitating the quick installation and disassembly of the first folding arm 2, the first link 3, the second folding arm 4, the second link 5, and the quick adjustment of the relative positions.

[0038] In some embodiments, the first seat plate 12, the third seat plate 14, the fourth seat plate 15 and the sixth seat plate 17 have the same structure, and the second seat plate 13 and the fifth seat plate 16 have the same structure; the first seat plate 12 and the sixth seat plate 17 have the same orientation along the circumference of the central connecting member 11, the third seat plate 14 and the fourth seat plate 15 have the same orientation along the circumference of the central connecting member 11, and the orientations of the first seat plate 12 and the third seat plate 14 along the circumference of the central connecting member 11 are staggered by a preset angle; the second seat plate 13 and the fifth seat plate 16 have the same orientation along the circumference of the central connecting member 11.

[0039] It should be noted that this embodiment does not limit the specific value of the preset angle of azimuth offset between the first seat plate 12 and the third seat plate 14 along the circumferential direction of the central connector 11. Those skilled in the art may set the angle based on actual needs to facilitate installation of various components connected to the folding arm connector 1. The preset angle of azimuth offset between the first seat plate 12 and the third seat plate 14 along the circumferential direction of the central connector 11 ranges from 30° to 60°, for example, 45°.

[0040] In some embodiments, the first seat plate 12, the third seat plate 14, the fourth seat plate 15 and the sixth seat plate 17 all include a first through hole 121 and two first lug structures 122 respectively provided on both sides of the first through hole 121, and the first lug structure 122 is provided with a first connecting hole 1221 connected to the corresponding pin shaft 18; the second seat plate 13 and the fifth seat plate 16 all include a second through hole 131 and a second lug structure 132 provided on the outer periphery of the second through hole 131, and the second lug structure 132 is provided with a second connecting hole 1321 connected to the corresponding pin shaft 18.

[0041] That is, the first seat plate 12 , the third seat plate 14 , the fourth seat plate 15 and the sixth seat plate 17 are all connected to the central connecting member 11 through the first through hole 121 , and the second seat plate 13 and the fifth seat plate 16 are all connected to the central connecting member 11 through the second through hole 131 .

[0042] In some embodiments, the central connecting member 11 is a tubular member.

[0043] In some embodiments, the central connecting member 11 is a round tube or a polygonal tube. Preferably, the tubular member is a round tube.

[0044] Of course, in other embodiments, the tubular member may also be a polygonal tube, for example, formed by multiple bending of a plate member, as long as it is conducive to the installation of the first seat plate 12, the second seat plate 13, the third seat plate 14, the fourth seat plate 15, the fifth seat plate 16 and the sixth seat plate 17.

[0045] In some embodiments, the central connecting member 11 is provided with a through hole 111 for the pull rod 6 rotatably connected to the first folding arm 2 and the second folding arm 4 at both ends to pass through.

[0046] In this embodiment, the pull rod 6 passes through the through hole 111. That is, after the pull rod 6 passes through the through hole 111, the two ends of the pull rod 6 are respectively hinged to the first folding arm 2 and the second folding arm 4. By opening the through hole 111 on the central connecting member 11, the pull rod 6 is reasonably avoided, saving structural space.

[0047] In addition, in some embodiments, the length of the pull rod 6 is adjustable. Since the length of the pull rod 6 is adjustable, the length of the pull rod 6 can be adjusted during assembly to compensate for uneven force caused by processing errors.

[0048] In some embodiments, to facilitate the passage of wires, the central connector 11 is provided with a wire hole 112 located between the third base plate 14 and the fourth base plate 15 for the wires to pass through. This arrangement allows for reasonable avoidance of wires and helps save structural space.

[0049] In some embodiments, the first seat plate 12 , the second seat plate 13 , the third seat plate 14 , the fourth seat plate 15 , the fifth seat plate 16 , the sixth seat plate 17 and the central connecting member 11 are welded into an integrated structure.

[0050] A folding arm device provided in the present application includes a first folding arm 2, two first connecting rods 3, a second folding arm 4, two second connecting rods 5 and the folding arm connector 1 described in the above specific embodiment. The two first folding arm bodies of the first folding arm 2, the two first connecting rods 3, the two second folding arm bodies of the second folding arm 4 and the two second connecting rods 5 are rotatably connected with each pin shaft 18 in a one-to-one correspondence.

[0051] Specifically, the folding arm device also includes a turntable, which is used to connect to the chassis of the aerial work vehicle; the first folding arm 2 and the first connecting rod 3 are respectively hinged to the turntable and the folding arm connector 1, and the first folding arm 2, the first connecting rod 3, the turntable and the folding arm connector 1 form a parallelogram mechanism; the second folding arm 4 and the second connecting rod 5 are respectively hinged to the folding arm connector 1 and the arm support connector, and the second folding arm 4, the second connecting rod 5, the folding arm connector 1 and the arm support connector form a parallelogram mechanism; the number of pull rods 6 is two, and the two ends of a single pull rod 6 are respectively hinged to the second folding arm body of the second folding arm 4 and the first folding arm body of the first folding arm 2.

[0052] When the folding arm device is in the folded state, the first folding arm 2, the first connecting rod 3, the second folding arm 4, and the second connecting rod 5 are parallel. When it is necessary to work, the pull rod 6 pulls the first folding arm 2 and the second folding arm 4 to rotate relative to each other, and the first folding arm 2, the first connecting rod 3, the turntable and the folding arm connector 1 form a parallelogram mechanism, and the second folding arm 4, the second connecting rod 5, the folding arm connector 1 and the arm frame connector form a parallelogram mechanism, thereby achieving the extension of the first folding arm 2 and the second folding arm 4.

[0053] The other parts of the folding arm device can refer to the existing technology and will not be expanded in this article.

[0054] It should be noted that, in this specification, relational terms such as first and second are merely used to distinguish one entity from other entities, but do not necessarily require or imply any actual relationship or order between these entities.

[0055] The above is a detailed introduction to the folding arm device and folding arm connector provided by the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the scheme and core ideas of the present application. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the claims of the present application.

Claims

1. A folding arm connector (1), characterized in that: include: Central connecting piece (11); A first seat plate (12), a second seat plate (13), a third seat plate (14), a fourth seat plate (15), a fifth seat plate (16), and a sixth seat plate (17) are sequentially arranged on the outer periphery of the central connecting member (11) along the axial direction of the central connecting member (11); Wherein, two pins (18) are respectively provided between the first seat plate (12) and the second seat plate (13), between the second seat plate (13) and the third seat plate (14), between the fourth seat plate (15) and the fifth seat plate (16), and between the fifth seat plate (16) and the sixth seat plate (17), and each pin (18) is used for rotationally connecting with the two first folding arm bodies and the two first connecting rods (3) of the first folding arm (2), and the two second folding arm bodies and the two second connecting rods (5) of the second folding arm (4) in a one-to-one corresponding manner; The first seat plate (12), the third seat plate (14), the fourth seat plate (15) and the sixth seat plate (17) have the same structure, and the second seat plate (13) and the fifth seat plate (16) have the same structure; the first seat plate (12) and the sixth seat plate (17) have the same orientation along the circumference of the central connecting member (11), the third seat plate (14) and the fourth seat plate (15) have the same orientation along the circumference of the central connecting member (11), and the orientations of the first seat plate (12) and the third seat plate (14) along the circumference of the central connecting member (11) are staggered by a preset angle; the second seat plate (13) and the fifth seat plate (16) have the same orientation along the circumference of the central connecting member (11).

2. The folding arm connector (1) according to claim 1, characterized in that: The first seat plate (12), the third seat plate (14), the fourth seat plate (15) and the sixth seat plate (17) all include a first through hole (121) and two first lug structures (122) respectively provided on both sides of the first through hole (121), and the first lug structure (122) is provided with a first connecting hole (1221) connected to the corresponding pin shaft (18); the second seat plate (13) and the fifth seat plate (16) all include a second through hole (131) and a second lug structure (132) provided on the outer periphery of the second through hole (131), and the second lug structure (132) is provided with a second connecting hole (1321) connected to the corresponding pin shaft (18).

3. The folding arm connector (1) according to claim 1, characterized in that: The preset angle ranges from 30° to 60°.

4. The folding arm connector (1) according to claim 1, characterized in that: The central connecting piece (11) is a tubular piece.

5. The folding arm connector (1) according to claim 4, characterized in that: The central connecting piece (11) is a round tube or a polygonal tube.

6. The folding arm connector (1) according to any one of claims 1 to 5, characterized in that: The central connecting member (11) is provided with a through hole (111) for the pull rod (6) whose two ends are respectively rotatably connected to the first folding arm (2) and the second folding arm (4) to pass through.

7. The folding arm connector (1) according to any one of claims 1 to 5, characterized in that: The central connecting member (11) is provided with a wire hole (112), and the wire hole (112) is located between the third seat plate (14) and the fourth seat plate (15) for allowing the power line to pass through.

8. The folding arm connector (1) according to any one of claims 1 to 5, characterized in that: The first seat plate (12), the second seat plate (13), the third seat plate (14), the fourth seat plate (15), the fifth seat plate (16), the sixth seat plate (17) and the central connecting member (11) are welded into an integrated structure.

9. A folding arm device, characterized in that: The invention comprises a first folding arm (2), two first connecting rods (3), a second folding arm (4), two second connecting rods (5), and a folding arm connector (1) according to any one of claims 1 to 8, wherein the two first folding arm bodies of the first folding arm (2), the two first connecting rods (3), the two second folding arm bodies of the second folding arm (4), and the two second connecting rods (5) are rotatably connected to each of the pin shafts (18) in a one-to-one correspondence.

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