Construction machine and method for operating a construction machine

Abstract

The invention relates to a working machine and a method for operating a working machine. A working machine comprises a carrier device, a mast, which is particularly configured as a guide pole, and a hinging device, with which the mast is adjustably mounted on the front side of the carrier device, the mast being adjustable between an upright arranged operating position and a lying down position, which is arranged in a lying down manner, the hinging device comprising two support poles, which are arranged parallel to each other, to form a parallelogram arrangement, the poles each being pivotably hinged to the carrier device and to a kinematic bracket, which is mounted on the mast to pivot about a hinging axis, two support cylinders, which are pivotably hinged to the kinematic bracket and to the mast, and at least one actuating cylinder, which adjusts the parallelogram arrangement and thus pivots the kinematic bracket relative to the carrier device. The hinging device according to the invention pivots the mast away from the upright operating position forwards to the lying down position, in which the mast is arranged in front of the front side of the carrier device and extends forwards away from the carrier device.

Description

Technical Field

[0001] This invention relates to an engineering machine according to the preamble of claim 1, comprising: a carrier device; a mast, specifically configured as a guide rod; and a hinge device by which the mast is adjustably mounted on the front side of the carrier device, wherein the mast is adjustable between an operating position and a reclining position, in which the mast is arranged upright and in the reclining position, the mast is arranged in a reclining manner, wherein the hinge device has: two support rods arranged substantially parallel to each other to form a parallelogram arrangement, each rod being pivotally hinged on one side to the carrier device and on the other side to a kinematic support mounted on the mast so as to be pivotable about a hinge axis; two support cylinders pivotally hinged on one side to the kinematic support and on the other side to the mast; and at least one actuating cylinder configured to adjust the parallelogram arrangement and thus to pivot the kinematic support relative to the carrier device.

[0002] Furthermore, the present invention also relates to a method for operating engineering machinery according to the preamble of claim 11, wherein the engineering machinery comprises: a carrier device; a mast, specifically configured as a guide rod; and a hinge device by means of which the mast is adjustably mounted on the front side of the carrier device, wherein the hinge device comprises: two support rods arranged substantially parallel to each other to form a parallelogram arrangement, each rod being pivotally hinged on one side to the carrier device and on the other side to a kinematic support. The bracket is mounted on the mast so as to be pivotable about a hinge axis; two support cylinders are pivotally hinged to the kinematic bracket on one side and to the mast on the other side; and at least one actuation cylinder is configured to adjust the parallelogram arrangement and thus to pivot the kinematic bracket relative to the carrier device, wherein the mast is adjusted between an operating position and a reclining position by means of the hinge, in the operating position in which the mast is arranged upright and in the reclining position in which the mast is arranged in a reclining manner. Background Technology

[0003] EP 3 214 258 B1 and EP 1 655 415 A1 disclose engineering machinery comprising a carrier assembly and a mast (particularly a guide rod) mounted thereon, wherein the mast is pivotally hinged to the carrier assembly in its lower region. The mast is held in a substantially vertical operating position by two support cylinders (also called neck cylinders), which support the mast on one side and the carrier assembly on the other. The spacing between the two support cylinders increases downward in an inverted V-shape. This results in particularly stable support of the mast relative to the carrier assembly. Extending the support cylinders allows the mast to tilt forward to a reclining position about its lower hinge point on the carrier assembly, as can be seen in particular from EP 3 214 258 B1. This reclining mast arrangement in front of the carrier assembly is advantageous for installing and removing the mast. This arrangement is referred to below as V-kinematics.

[0004] If the transport size of construction machinery needs to be reduced, such as when transporting the machinery from one construction site to another, then disassembly of the mast is necessary. While lying on the ground, the relatively long mast can be disassembled into individual segments, which can then be moved and transported relatively easily.

[0005] However, a drawback of V-shaped kinematics is that, due to the short hinge between the mast and the carrier device in its upright operating position, the mast can only be adjusted slightly in the lying direction, that is, only to a limited extent relative to the carrier device. To bring the tool to the desired location, such as the desired drilling point, relatively precise pre-positioning using the carrier device is required. Therefore, the precise positioning of the mast at the work site can be associated with some amount of movement and time consumption.

[0006] A general-purpose engineering machine is obtained, for example, by EP 4 311 881 A1. In this known mast arrangement, the mast is not directly hinged to the carrier device. There is a pivotable hinge of the mast relative to a kinematic support, also known as a kinematic triangle, which is itself adjustably mounted on the carrier device by means of a parallelogram arrangement with two support rods. The two support rods of this parallelogram arrangement are arranged substantially parallel to each other and spaced apart. Furthermore, two support cylinders or neck cylinders are provided, one supporting the mast and the other supporting the kinematic support. These support cylinders or neck cylinders hold the mast in a substantially vertical operating position.

[0007] The kinematic support and thus the mast mounted thereon can pivot relative to the carrier device by means of one or more actuating cylinders on a parallelogram arrangement of support rods, wherein the distance between the mast and the carrier device can be adjusted and set in the lying direction.

[0008] Furthermore, this parallelogram arrangement allows the mast to be moved rearward on the carrier assembly while the kinematic support pivots forward and the support cylinder retracts simultaneously. For this purpose, a receiving area for the mast is formed on the carrier assembly. Additionally, the kinematic support must be constructed as compact and thin as possible so that it can also be moved without colliding with the operator's cab formed on the carrier assembly. For transport purposes, the mast typically does not need to be moved or dismantled. However, if dismantling of the mast is still necessary due to limitations such as transport weight, the mast's arrangement, essentially lying on the carrier assembly, makes installation and dismantling more difficult. Crane equipment is required for lifting the mast onto or from the carrier assembly. Summary of the Invention

[0009] The purpose of this invention is to specifically describe an engineering machine and a method that enables the engineering machine to operate with exceptionally high efficiency.

[0010] According to the present invention, this objective is achieved on the one hand by an engineering machine having the features of claim 1, and on the other hand by a method having the features of claim 11. Preferred embodiments of the invention are described in detail in the corresponding dependent claims.

[0011] In the case of the engineering machinery, according to the invention, the deflection device is configured to pivot the mast forward away from the upright operating position to a lying position, in which the mast is arranged in front of the front side of the carrier device and extends forward away from the carrier device.

[0012] The basic concept of this invention is to construct an engineering machine with a hinge mechanism that allows for adjustment of the distance between the mast and the carrier device to a greater extent. Furthermore, with continuous and good support for the mast, the mast can be pivoted forward to a reclining position in front of the carrier device. In this reclining position, the mast can be placed directly on the ground, allowing for installation or removal without complex crane equipment.

[0013] According to a first aspect of the invention, this is achieved by the following: the hinge device comprises a parallelogram arrangement having two support rods arranged substantially parallel to each other, which in each case are pivotally hinged to the carrier device on one hand and pivotally hinged to a kinematic support on the other hand. In this case, the mast is mounted on the kinematic support so as to be pivotable about the hinge axis. The axes of the support rods and the kinematic support are preferably oriented parallel to each other and facing the lying direction or the transverse direction relative to the longitudinal direction of the mast.

[0014] Furthermore, according to another aspect of the invention, two support cylinders are arranged, which are pivotally hinged to the kinematic support on one hand and to the mast on the other. These pivot axes can also be arranged parallel to the axis of the support rod and the hinge axis of the kinematic support. Since the kinematic support is arranged in front of the carrier device and remains in front of the carrier device when the mast is pivoted to the reclining position, the kinematic support can be configured to have a high degree of freedom. In particular, the kinematic support can be configured to have a width in the lateral direction, which preferably extends over a significant portion or the entire width of the carrier device. This allows for particularly stable mast support via support cylinders arranged in a triangular configuration in an inverted V-shape, wherein the support cylinders move toward each other from the kinematic support in a direction toward the mast. The support cylinders can also be used to achieve angular adjustment of the mast relative to the vertical direction.

[0015] Finally, according to another aspect of the invention, at least one actuating cylinder is arranged on a parallel arrangement structure, which can be used to adjust the parallel arrangement structure and thus to pivot the kinematic support relative to the carrier device. Therefore, the actuating cylinder can be used to set the desired spacing of the mast relative to the carrier device without changing its fundamental orientation.

[0016] Therefore, in the case of the engineering machinery according to the invention, the mast can be adjusted with a high degree of freedom relative to the carrier device, wherein the mast support also has high rigidity, and also has the possibility of lowering the mast forward to a lying position.

[0017] In principle, the support cylinder can be constructed in any suitable manner depending on the structural conditions of the articulated device. According to one embodiment of the invention, it is particularly preferred that the support cylinder be in a retracted state in the upright operating position and extended to reach the reclining position. In the retracted position, the length of the support cylinder is reduced, and in this state, the support cylinder is particularly rigid. Therefore, the support cylinder in the upright operating position can particularly well contribute to the stable support of the mast, in which relatively high forces may occur during operation.

[0018] However, the support cylinder extends when the mast reaches the lying position. However, in this position, almost no force is applied to it. In the lying position, the mast also requires no significant support from the support cylinder, especially due to direct support via the ground or another support. In fact, high traction is required to erect the mast, but the rigidity of the arrangement structure is ineffective at this point.

[0019] According to another embodiment variation of the invention, it is advantageous to make the at least one actuating cylinder pivotally hinged on one side to one of the carrier device or support rods, and on the other side to one of the kinematic support or support rods. Importantly, during the extension or retraction of the at least one actuating cylinder, the support rods of the parallelogram arrangement pivot approximately parallel to each other, and in this process, the spacing of the mast relative to the carrier device can be further adjusted and set. This allows for simplified adjustment of the mast without complex displacement of the carrier device.

[0020] In order to tilt the mast forward with particular efficiency, according to a construction variation of the invention, it is advantageous to arrange the hinge axis of the kinematic support in the lower region of the mast, particularly at the lower end of the mast.

[0021] Another preferred embodiment of the invention is that the at least one actuating cylinder is retractable and / or extendable to reach a lying position, in which the kinematic support and support rod can pivot forward. Particularly reliable forward pivoting movement can occur when the support rod is extended for tilting to the lying position. In the lying position, the mast can then be relatively easily detached from the support cylinder and kinematic support. Conversely, for mast installation, the mast can be arranged in the lying position in front of the carrier device such that after the components (particularly the components of the hinged device) are correspondingly connected to the mast, the mast can be moved directly from the carrier device itself to the upright operating position without the need for a crane.

[0022] According to another embodiment of the invention, a particularly stable mast support is achieved because the support cylinder is mounted on the rear side of the mast on one side and on the bearing portion of the kinematic support on the other. The rear side of the mast is the side facing the carrier assembly. The connecting bearing is specifically constructed as a pivot bearing, allowing for easy forward tilting of the mast. Even with asymmetrical actuation of the support cylinder, a specific angle setting of the mast relative to the vertical direction can be achieved through the corresponding shaping of the bearings in the support cylinder.

[0023] According to another advantageous embodiment of the invention, the carrier device is provided to be constructed approximately in a box-like manner with length and width, and the support cylinders are mounted on bearing portions of a kinematic support, which are opposite each other in the width direction, with their outer ends spaced apart approximately in a manner corresponding to the width of the carrier device. Therefore, to utilize the support cylinders to form a V-shaped arrangement, the entire width of the carrier device can be used to a large extent. It is also possible that the kinematic support can protrude laterally beyond the carrier device. In this way, a particularly wide "V" shape can be achieved in the arrangement of the support cylinders, which contributes to a particularly stable and rigid mast support.

[0024] According to another possible configuration of the invention, it is particularly advantageous to include two transverse bearing portions interconnected via a central portion, and to make the transverse bearing portions triangular, L-shaped, or beam-shaped in side view. Hinge points or connecting bearings for supporting the cylinder, mast, and optionally at least one actuating cylinder can be effectively arranged on said transverse bearing portions. Therefore, this design of the kinematic support allows for a particularly compact and stable kinematic support. The central portion located between the transverse bearing portions, designed in this way, can have a smaller cross-section than the transverse bearing portions.

[0025] The carrier assembly includes: a movable chassis, particularly comprising a tracked underframe; and a superstructure rotatably mounted on the chassis. Thus, the carrier assembly can be configured to be mobile. The preferred rotatable mounting of the superstructure on the movable chassis (particularly comprising a tracked underframe) enables particularly efficient positioning of the mast at the desired work location.

[0026] In principle, the engineering machinery can be configured for any suitable purpose. A particularly advantageous variant of the invention is that the machinery is configured as a soil drilling device, a trench wall device, a vibratory device, or a pile driver. The soil drilling device can be specifically configured for pile drilling, which creates a borehole in the soil by material removal and / or displacement drilling. In the case of a trench wall device, a trench cutter with a rotatably driven milling wheel and a trench wall holder with clamping blades can be maintained for adjustment along the mast. In the case of a vibratory device, a vibratory device can be arranged, and in the case of a pile driver, a pile driving device can be arranged, which can be specifically configured to introduce a vibrator or tamping material, such as a sheet piling plank.

[0027] Furthermore, the present invention also includes a method for operating engineering machinery, particularly engineering machinery according to the invention, wherein the method according to the invention is characterized in that the mast pivots forward from an upright operating position to a reclining position by means of the hinge device, in which the mast is positioned in front of the front side of the carrier device and extends forward away from the carrier device. This allows for particularly simple disassembly or assembly of the mast by utilizing the continuous and excellent support of the mast in the operating position. This method can be performed particularly easily with the engineering machinery according to the invention described above. Correspondingly, the above-described advantages can be achieved.

[0028] A preferred variation of the method according to the invention involves retracting the support cylinders to reach an upright operating position and extending them to reach a reclining position. In the retracted state, these support cylinders are particularly rigid, which contributes to the stable support of the mast in the operating position.

[0029] Finally, according to another preferred embodiment of the invention, in order to reach the lying position, the at least one actuating cylinder retracts or extends, wherein the kinematic support and support rod pivot forward. This allows the mast to tilt forward efficiently in front of the carrier device to the lying position. In such a position, any necessary installation and dismantling work and maintenance can be performed on the mast in an efficient manner. Preferably, the at least one actuating cylinder can also be constructed and arranged in such a way that it retracts to reach the lying position. In principle, the at least one actuating cylinder can also be constructed and arranged in a kinematically reverse manner that it extends to reach the lying position.

[0030] Furthermore, an advantageous variation of the method according to the invention involves disassembling the parallelogram arrangement with two support rods, and, with or without a kinematic support, mounting the support cylinder and mast onto the carrier device to form a rigid mast attachment. In this way, almost conventional V-shaped kinematics, which is particularly rigid, can be achieved without the parallelogram arrangement. After disassembling the support rods and the at least one actuating cylinder, the support cylinder and mast can be mounted onto the carrier device, with or without a kinematic support. Existing engineering machinery with conventional V-shaped arrangements can also be rebuilt and modified accordingly. Attached Figure Description

[0031] The invention will be explained in more detail below with reference to preferred embodiments, which are schematically illustrated in the accompanying drawings, in which: Figure 1 It is a side view of the engineering machinery according to the invention, having a position close to the first mast of the carrier device; Figure 2 It is a second mast position that is further separated from the carrier device. Figure 1 A side view of the construction machinery; Figure 3 It is based on Figure 2 A front view of the construction machinery; and Figure 4 It is based on Figures 1 to 3 A side view of an engineering machine, with the mast leaning forward. Detailed Implementation

[0032] Figures 1 to 3 The basic structure of the engineering machinery 10 according to the invention is shown, wherein the mast 20 is in an upright operating position. This operating position specifically corresponds to the vertical direction, but may also deviate from the vertical direction by a few degrees depending on the operating conditions.

[0033] The engineering machinery 10 shown according to the invention includes a carrier unit 12, to which a mast 20 is pivotally hinged via a hinge device 30. According to this exemplary embodiment, the carrier unit 12 may include: a movable chassis 14, which preferably includes a tracked underframe; and a superstructure 16, which is preferably rotatably mounted on the chassis 14. A driver's cab, drive unit, winch, and other components may be arranged on the carrier unit 12.

[0034] According to the exemplary embodiments described in the detailed description, the mast 20 may preferably be configured as a guide rod having a front linear guide 24. For example, a drill rig 26 with a drill drive for rotatably driving a drilling tool 28 may be guided along the linear guide 24. Furthermore, a drill rig preferably configured in this way may also include a square drill rod 27 through which torque can be transmitted from the drill drive to the drilling tool 28 at the lower end of the square drill rod 27, and the drilling tool 28 may be raised and lowered.

[0035] According to the invention, the mast 20 is pivotally connected to the carrier device 12 via a hinge 30 having a kinematic support 32. In this case, the mast 20 is pivotally connected to the kinematic support 32 via an articulation axis 22 at its lower end region, particularly at the lower end. The kinematic support 32 is adjustably mounted on the carrier device 12 via a parallelogram arrangement 40 having two support rods 40 oriented substantially parallel to each other. Furthermore, the mast 20 is connected to the kinematic support 32 of the hinge 30 via two support cylinders 50, wherein the upper end of the support cylinder 50 is hinged to the rear side of the mast 20, while the lower end of the support cylinder 50 is hinged to the kinematic support 32 in each case. In this case, the spacing between the support cylinders 50 widens from top to bottom, forming a downward-pointing V-shape, as in... Figure 3 It can be seen in the image.

[0036] The carrier device 12, having an upper structure 16, can be constructed in a box-like manner with length and width, wherein support cylinders 50 are mounted on bearing portions 34 of the kinematic support 32, which are opposite each other in the width direction, and the outer ends of the bearing portions are spaced apart from each other approximately in a manner corresponding to the width of the carrier device 12. The two transverse bearing portions 34 of the kinematic support 32 can be interconnected via a central portion 36, such as... Figure 3 As shown in the diagram. The transverse bearing portion 34 may preferably be triangular, L-shaped, or beam-shaped in the side view. Figure 1 and Figure 2 The shape is approximately triangular.

[0037] To adjust the kinematic support 32 and thus the mast 20, at least one actuating cylinder 46 is provided, which, in the illustrated embodiment, is supported on both the carrier device 12 and the kinematic support 32. According to... Figures 1 to 3 In an exemplary embodiment, two actuating cylinders 46 are arranged; however, in accordance with Figure 1 and Figure 2 Only one is visible in the side view.

[0038] According to this exemplary embodiment, if the at least one actuating cylinder 46 extends, the support rod 42 points upward, and the kinematic support 32 moves upward together with the mast 20 hinged to the kinematic support 32. In this position, the mast 20 is positioned relatively close to the carrier device 12, as in... Figure 1 It can be seen in the image.

[0039] The at least one actuating cylinder 46 can also be arranged such that, in the retracted state of the actuating cylinder 46, the support rod 42 points upward (not shown).

[0040] If the at least one actuating cylinder 46 retracts, in the illustrated embodiment, the support rod 42 and kinematic support 32 pivot forward, wherein the mast 20 is lowered and further spaced from the carrier device 12, as... Figure 2 Clearly illustrated, during this pivoting movement of the kinematic support 32, the support cylinder 50 remains in the retracted position, wherein the mast 20 remains in its upright operating position and is reliably supported by the support cylinder 50. Therefore, the hinge device 30 according to the invention allows for efficient setting of the distance between the mast 20 and the carrier device 12, as well as the height of the mast 20 relative to the ground.

[0041] In an alternative arrangement of the at least one actuating cylinder 46 described above but not shown, during the extension of the at least one actuating cylinder 46, the support rod 42 and the kinematic support 32 pivot forward accordingly.

[0042] From the basis Figure 2 Starting from the position shown in the embodiment, the mast 20 can be pivoted forward from its upright operating position to a lying position in front of the carrier device 12 by extending the support cylinder 50. In this case, if the carrier device 12 includes a chassis 14 and an upper structure 16 rotatably mounted thereon, the chassis 14 and the upper structure 16 should preferably be oriented in the longitudinal direction.

[0043] According to Figure 4The mast 20 is positioned such that it lies on the ground, allowing for particularly simple removal of the mast 20 from the carrier device 12. For this purpose, specifically, the support cylinder 50 is detachable from the mast 20 at its upper end. Furthermore, the kinematic bracket 32 ​​is detachable from the mast 20 at the hinge axis 22, allowing the mast 20 to be easily separated from the carrier device 12 after the support and winch cables have been separated (which may be necessary if applicable). Conversely, simple installation of the mast 20 onto the carrier device 12 can be performed by reattaching the support cylinder 50 and the kinematic bracket 32 ​​accordingly.

[0044] According to another embodiment variation of the invention, the support rod 42 and the at least one actuating cylinder 46 are detachable from the carrier device 12, wherein the support cylinder 50 and the mast 20 can then be directly attached to the carrier device 12 with or without the kinematic support 32. For this purpose, corresponding hinge points can be formed or arranged on the carrier device 12 or the connecting components. As a result, a simple reconstruction of the engineering machinery 10 according to the invention, having a parallelogram arrangement structure 40, can be achieved to form an engineering machinery with a V-shaped arrangement structure of the support cylinder 50 without the parallelogram arrangement structure 40.

Claims

1. An engineering machinery, comprising: - Carrier device, - The mast, which is specially constructed as a guide rod, and - A hinge mechanism, by means of which the mast is adjustably mounted on the front side of the carrier device, wherein the mast is adjustable between an operating position and a reclining position, in which the mast is arranged upright and in the reclining position, the mast is arranged in a reclining manner. - Wherein, the hinge device includes: - Two support rods, arranged substantially parallel to each other to form a parallelogram arrangement, each rod being pivotally hinged on one side to the carrier device and on the other side to a kinematic support mounted on the mast so as to be able to pivot about a hinge axis. - Two support cylinders, one pivotally hinged to the kinematic support and the other pivotally hinged to the mast, and - At least one actuating cylinder configured to adjust the parallelogram arrangement and thus to pivot the kinematic support relative to the carrier device. in, The hinge device is configured to pivot the mast forward from the upright operating position to a lying position, in which the mast is positioned in front of the front side of the carrier device and extends forward away from the carrier device.

2. The engineering machinery according to claim 1, in, In the upright operating position, the support cylinder is in the retracted state, and The support cylinder extends to reach the lying position.

3. The engineering machinery according to claim 1, in, The at least one actuating cylinder is pivotally hinged to one of the carrier device or the support rod on one side, and pivotally hinged to one of the kinematic support or the support rod on the other side.

4. The engineering machinery according to claim 1, in, The hinge axis of the kinematic support is arranged in the lower region of the mast, particularly at the lower end of the mast.

5. The engineering machinery according to claim 1, in, In order to reach the lying position, the at least one actuating cylinder can retract and / or extend, wherein the kinematic support and the support rod can pivot forward.

6. The engineering machinery according to claim 1, in, The support cylinder is mounted on the rear side of the mast on one side and on the bearing portion of the kinematic support on the other side.

7. The engineering machinery according to claim 1, in, The carrier device is constructed approximately in a box-like manner, having both length and width. The support cylinder is mounted on a bearing portion of the kinematic support, the bearing portions being opposite each other in the width direction, and the outer ends of the bearing portions being spaced apart from each other approximately in a manner corresponding to the width of the carrier device.

8. The engineering machinery according to claim 1, in, The kinematic support includes two lateral bearing sections interconnected via a central section, and The transverse bearing portion is triangular, L-shaped, or beam-shaped in the side view.

9. The engineering machinery according to claim 1, in, The carrier device includes: a chassis, which in particular includes a tracked underframe; and a superstructure rotatably mounted on the chassis.

10. The engineering machinery according to claim 1, in, These engineering machines are constructed as drilling rigs, trenching devices, vibrating equipment, or pile drivers.

11. A method for operating construction machinery, particularly the construction machinery according to claim 1, wherein, The engineering machinery includes: - Carrier device, - The mast, which is specially constructed as a guide rod, and - A hinge mechanism by which the mast is adjustably mounted on the front side of the carrier device. - Wherein, the hinge device includes: - Two support rods, arranged substantially parallel to each other to form a parallelogram arrangement, each rod being pivotally hinged on one side to the carrier device and on the other side to a kinematic support mounted on the mast so as to be able to pivot about a hinge axis. - Two support cylinders, one pivotally hinged to the kinematic support and the other pivotally hinged to the mast, and - At least one actuating cylinder configured to adjust the parallelogram arrangement and thus to pivot the kinematic support relative to the carrier device. The mast can be adjusted between an operating position and a reclining position by means of the hinge device. In the operating position, the mast is arranged upright, and in the reclining position, the mast is arranged in a reclining manner. in, The mast pivots forward from the upright operating position to a lying position by means of the hinge device. In the lying position, the mast is positioned in front of the front side of the carrier device and extends forward away from the carrier device.

12. The method according to claim 11, in, To reach the upright operating position, the support cylinder retracts, and In order to reach the lying position, the support cylinder extends.

13. The method according to claim 11, in, In order to reach the lying position, the at least one actuating cylinder retracts or extends, wherein the kinematic support and the support rod pivot forward.

14. The method according to claim 11, in, In order to form a rigid V-shaped arrangement structure, the parallelogram arrangement structure with two support rods is disassembled, and the support cylinder and the mast are carried on the carrier device.

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