Pipeline restraining device and aerial work platform
By designing pipeline constraint devices, the pipelines in the aerial working platform are limited by using brackets and drag chains, the damage caused by friction between pipelines and other components is solved, and the safety and reliability of the equipment are improved.
Patent Information
- Application Number
- CN202421949313.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-13
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-08-13
AI Technical Summary
In the high-altitude working platform, the pipeline is prone to friction with other components during the expansion and contraction of the boom, resulting in damage to the pipeline and thus causing mechanical failure.
A pipeline restraint device is designed, including a bracket and a drag chain, for connecting the folding arm basic arm and the folding arm telescopic arm of the arm frame, the bracket is connected to the folding arm telescopic arm, one end of the drag chain is connected to the bracket, and the other end is connected to the folding arm basic arm, and the bracket and the drag chain are used to restrict the pipeline above the folding arm basic arm.
The pipeline is limited through brackets and drag chains to avoid interference with the turntable and boom, and prevent wear caused by friction and squeeze, thereby improving the safety and reliability of the equipment.
Smart Images
Figure CN222907374U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of aerial work equipment, and particularly to a pipeline restraint device and an aerial work platform. Background Art
[0002] An aerial work platform is a mechanical device for aerial work, which mainly includes a turntable and a boom. Among them, the movement of the boom is generally achieved by the telescopic movement of each hydraulic cylinder, and the telescopic movement of the hydraulic cylinder is achieved by pumping hydraulic oil by a hydraulic power source (oil pump) installed on the turntable. For this reason, it is necessary to use hydraulic hoses (power transmission) and cable lines (power control) to connect the hydraulic power source and each hydraulic cylinder on the boom, so as to achieve various movements of the boom.
[0003] In the related art, the pipelines (hydraulic hoses and cable lines) leading from the turntable to the boom need to pass through each hinge point. When the boom performs amplitude-changing and telescopic movements, the positions of the pipelines will also change accordingly with the amplitude change and telescopic movement of the boom. When the boom makes a telescopic movement between the fully retracted position and the fully extended position, the pipelines are prone to friction with other components of the aerial work platform. Over time, this will cause the pipelines to be damaged, resulting in the aerial work platform being unable to achieve the expected movements and causing mechanical failures.
[0004] Therefore, it is necessary for those skilled in the art to timely provide a pipeline restraint device that can restrain the pipeline path to prevent the pipeline from interfering with other components and causing wear. Summary of the Utility Model
[0005] The purpose of the present application is to provide a pipeline restraint device and an aerial work platform, which can prevent the pipeline from interfering with other components of the aerial work platform and causing wear, thereby improving the safety and reliability of the equipment.
[0006] To achieve the above object, the present application provides a pipeline restraint device for connecting the folding boom basic arm and the folding boom telescopic arm of the boom, including a bracket and a drag chain. The bracket is connected to the folding boom telescopic arm, one end of the drag chain is connected to the bracket, and the other end is connected to the folding boom basic arm. The bracket and the drag chain are used to restrain and limit the pipeline body above the folding boom basic arm during the telescopic movement of the folding boom telescopic arm relative to the folding boom basic arm.
[0007] In some embodiments, the bracket includes two branch pipes, which are arranged at intervals along the width direction of the drag chain, and both branch pipes are provided with limiting cavities for the pipeline body to pass through.
[0008] In some embodiments, both branch pipes are arranged above the folding boom basic arm, and the axial direction of any one of the branch pipes is parallel to the telescopic direction of the folding boom telescopic arm relative to the folding boom basic arm.
[0009] In some embodiments, the pipeline constraint device further includes two first connecting plates, one of the first connecting plates is used to connect the drag chain and one of the branch pipes, and the other first connecting plate is used to connect the drag chain and the other branch pipe.
[0010] In some embodiments, both of the two first connecting plates are bent. One end of any one of the first connecting plates is welded to the corresponding branch pipe, and the other end is connected to the drag chain through a first detachable connecting member.
[0011] In some embodiments, the pipeline constraint device further includes two second connecting plates, one of the second connecting plates is used to connect the folding arm telescopic arm and one of the branch pipes, and the other second connecting plate is used to connect the folding arm telescopic arm and the other branch pipe.
[0012] In some embodiments, the two second connecting plates have the same structure and are both bent. The two second connecting plates both include a first connecting portion, a second connecting portion and an arc-shaped transition connecting portion. The arc-shaped transition connecting portion is connected between the first connecting portion and the second connecting portion. The first connecting portion of any one of the second connecting plates is welded to the outer side wall of the corresponding branch pipe, and the second connecting portion of any one of the second connecting plates is connected to the folding arm telescopic arm through a second detachable connecting member.
[0013] In some embodiments, the pipeline constraint device further includes a fixing plate. The drag chain includes multiple drag chain bodies. The fixing plate is fixed to the top end face of the folding arm basic arm. The drag chain body at the end of the drag chain away from the bracket is connected to the fixing plate through a third detachable connecting member.
[0014] In some embodiments, the distance between the fixing plate and the end face of the folding arm basic arm away from the folding arm telescopic arm is greater than half of the length of the folding arm basic arm.
[0015] This application also provides an aerial work platform, which includes a turntable, an arm and a pipeline body. The pipeline body leads from the turntable to the arm, and further includes the pipeline constraint device of any one of the above. The pipeline constraint device is used to constrain the pipeline body to prevent the pipeline body from interfering with the turntable and the arm.
[0016] Compared with the above-mentioned background art, the pipeline constraint device provided by the embodiment of the present application is used to connect the folding basic arm and the folding telescopic arm of the boom. The pipeline constraint device includes a bracket and a drag chain. The bracket is connected to the folding telescopic arm, one end of the drag chain is connected to the bracket, and the other end is connected to the folding basic arm. Among them, the bracket and the drag chain are used to limit the pipeline body above the folding basic arm, so that the pipeline body is constrained by the bracket and the drag chain during the telescopic movement of the folding telescopic arm relative to the folding basic arm. With such a setting, compared with the traditional setting method, the pipeline constraint device provided by the embodiment of the present application limits the pipeline body above the folding basic arm through the bracket and the drag chain to restrict and constrain the running direction of the pipeline body above the folding basic arm, so that the pipeline body can move back and forth within a fixed space during the telescopic movement of the folding telescopic arm relative to the folding basic arm, thereby avoiding interference between the pipeline body and the turntable and the boom, preventing wear caused by friction and extrusion of the pipeline body, and thus improving the safety and reliability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related art, the following will briefly introduce the drawings required for use in the description of the embodiments or the related art. Obviously, the drawings in the following description are only the embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the provided drawings.
[0018] Figure 1 is the assembly schematic diagram of the pipeline constraint device and the boom in the embodiment of the present application;
[0019] Figure 2 is Figure 1 another angle assembly schematic diagram of the pipeline constraint device and the boom in;
[0020] Figure 3 is Figure 2 the connection schematic diagram of the pipeline constraint device in.
[0021] Wherein:
[0022] 1 - hinge point, 2 - folding basic arm, 3 - folding telescopic arm, 4 - connecting body, 5 - main arm, 6 - bracket, 61 - branch pipe, 7 - drag chain, 8 - pipeline body, 9 - first connecting plate, 10 - second connecting plate, 11 - first detachable connector, 12 - second detachable connector, 13 - third detachable connector, 14 - fixing plate. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0023] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.
[0024] In order to enable those skilled in the art of this technology to better understand the solution of the present application, the present application will be further described in detail below in conjunction with the accompanying drawings and specific implementation manners.
[0025] It should be noted that the orientation words such as "upper end, lower end, left side, right side" described below are defined based on the accompanying drawings of the specification.
[0026] Please refer to Figure 1 、 Figure 2 and Figure 3 , Figure 1 which is the assembly schematic diagram of the pipeline restraint device and the boom in the embodiment of the present application; Figure 2 is Figure 1 another angle assembly schematic diagram of the pipeline restraint device and the boom in Figure 3 is Figure 2 the connection schematic diagram of the pipeline restraint device in
[0027] The pipeline restraint device provided in the embodiment of the present application is used to connect the folding boom basic arm 2 and the folding boom telescopic arm 3 of the boom. The folding boom telescopic arm 3 is used for telescopic movement relative to the folding boom basic arm 2. During the telescopic movement of the folding boom telescopic arm 3 relative to the folding boom basic arm 2, the pipeline restraint device is used to limit the movement of the pipeline body 8 (hose and cable) above the folding boom basic arm 2 to prevent the pipeline body 8 from rubbing against other components of the aerial work platform and causing damage.
[0028] Specifically, the pipeline restraint device includes a bracket 6 and a drag chain 7. The bracket 6 is connected to the folding boom telescopic arm 3, one end of the drag chain 7 is connected to the bracket 6, and the other end is connected to the folding boom basic arm 2. Among them, the pipeline body 8 (hose and cable) bypasses the hinge point 1 between the turntable and the folding boom basic arm 2 and enters above the folding boom basic arm 2, and then enters the folding boom telescopic arm 3 through the drag chain 7 and the bracket 6. The bracket 6 and the drag chain 7 are used to limit the pipeline body 8 above the folding boom basic arm 2, so that the pipeline body 8 is constrained by the bracket 6 and the drag chain 7 during the telescopic movement of the folding boom telescopic arm 3 relative to the folding boom basic arm 2.
[0029] It should be noted that after the pipeline body 8 bypasses the hinge point 1 between the turntable and the folding boom basic arm 2 and enters above the folding boom basic arm 2, it first passes through the inner cavity of the drag chain 7 along the extension direction of the drag chain 7, then passes through the bracket 6, and finally enters the folding boom telescopic arm 3.
[0030] With such a setting, compared with the traditional setting method, the pipeline constraint device provided by the embodiment of the present application limits the pipeline body 8 above the folding arm basic arm 2 through the bracket 6 and the drag chain 7, so as to restrict and constrain the running direction of the pipeline body 8 above the folding arm basic arm 2, so that the pipeline body 8 can move back and forth within a fixed space during the telescopic movement of the folding arm telescopic arm 3 relative to the folding arm basic arm 2, thereby avoiding interference between the pipeline body 8 and the turntable and the boom, and preventing wear caused by friction and extrusion of the pipeline body 8, thereby improving the safety and reliability of the equipment.
[0031] In some embodiments, the bracket 6 includes two branch pipes 61, the two branch pipes 61 are arranged at intervals along the width direction of the drag chain 7 or the folding arm basic arm 2, and both of the two branch pipes 61 are provided with limiting cavities for the pipeline body 8 to pass through.
[0032] In this embodiment, both of the two branch pipes 61 are arranged above the folding arm basic arm 2, and the axial direction of any one of the branch pipes 61 is parallel to the telescopic direction of the folding arm telescopic arm 3 relative to the folding arm basic arm 2. Specifically, the two branch pipes 61 are arranged in parallel and opposite to each other, and the length direction of any one of the branch pipes 61 is horizontal and parallel to the telescopic direction of the folding arm telescopic arm 3 relative to the folding arm basic arm 2.
[0033] In this way, after the pipeline body 8 bypasses the hinge point 1 between the turntable and the folding arm basic arm 2 and enters above the folding arm basic arm 2, it first passes through the inner cavity of the drag chain 7 along the extension direction of the drag chain 7, then passes through the limiting cavities of the two branch pipes 61, and finally enters the folding arm telescopic arm 3.
[0034] The pipeline body 8 above the folding arm basic arm 2 is constrained by the bracket 6 and the drag chain 7 during the telescopic movement of the folding arm telescopic arm 3 relative to the folding arm basic arm 2. In this way, the pipeline body 8 above the folding arm basic arm 2 is limited by the bracket 6 and the drag chain 7 to restrict and constrain the running direction of the pipeline body 8 above the folding arm basic arm 2, so that the pipeline body 8 can move back and forth within a fixed space during the telescopic movement of the folding arm telescopic arm 3 relative to the folding arm basic arm 2, thereby avoiding interference between the pipeline body 8 and the turntable and the boom, and preventing wear caused by friction and extrusion of the pipeline body 8, thereby improving the safety and reliability of the equipment.
[0035] In addition, through the two relatively arranged branch pipes 61, the pipeline body 8 can be wired along the two edges of the bracket 6, thereby releasing the space in the middle of the bracket 6, which is beneficial to improving the space utilization rate.
[0036] In some embodiments, a wire management structure may also be provided in the inner cavity of the drag chain 7. The wire management structure may be a wire management groove, or the wire management structure may include multiple sets of pulley groups arranged at intervals along the extension direction of the drag chain 7. The pulley groups are used for the pipeline body 8 to bypass, so as to facilitate the separation and sorting of the pipeline body 8, which is beneficial to fixing the position of the pipeline body 8 in the drag chain 7, making the pipeline body 8 arranged more neatly and reducing potential safety hazards.
[0037] In some embodiments, the pipeline restraint device further includes two first connecting plates 9. One of the first connecting plates 9 is used to connect the drag chain 7 and one of the branch pipes 61, and the other first connecting plate 9 is used to connect the drag chain 7 and the other branch pipe 61.
[0038] For example, the left first connecting plate 9 is connected between the drag chain 7 and the left branch pipe 61, and the right first connecting plate 9 is connected between the drag chain 7 and the right branch pipe 61. The left and right first connecting plates 9 can also be arranged in parallel and opposite to each other.
[0039] In some embodiments, both of the two first connecting plates 9 are bent. One end of any one of the first connecting plates 9 is welded to the corresponding branch pipe 61, and the other end is connected to the drag chain 7 through a first detachable connector 11.
[0040] Of course, the first detachable connector 11 can be a first bolt. Connecting the first connecting plate 9 to the drag chain 7 through the first bolt can facilitate the installation and disassembly of the bracket 6 and the drag chain 7.
[0041] In some embodiments, the pipeline restraint device further includes two second connecting plates 10. One of the second connecting plates 10 is used to connect the folding arm telescopic arm 3 and one of the branch pipes 61, and the other second connecting plate 10 is used to connect the folding arm telescopic arm 3 and the other branch pipe 61.
[0042] For example, the left second connecting plate 10 is connected between the folding arm telescopic arm 3 and the left branch pipe 61, and the right second connecting plate 10 is connected between the folding arm telescopic arm 3 and the right branch pipe 61.
[0043] In some embodiments, the two second connecting plates 10 have the same structure and are both bent. The two second connecting plates 10 both include a first connecting portion, a second connecting portion, and an arc-shaped transition connecting portion. The arc-shaped transition connecting portion is connected between the first connecting portion and the second connecting portion. The first connecting portion of any one of the second connecting plates 10 is welded to the outer side wall of the corresponding branch pipe 61, and the second connecting portion of any one of the second connecting plates 10 is connected to the folding arm telescopic arm 3 through a second detachable connector 12.
[0044] Of course, the second detachable connector 12 can be a second bolt. Connecting the second connecting plate 10 to the folding arm telescopic arm 3 through the second bolt can facilitate the installation and disassembly of the bracket 6 and the folding arm telescopic arm 3.
[0045] In some embodiments, the drag chain 7 includes multiple sections of a steel drag chain body, and the drag chain bodies are movably connected to each other. The beneficial effects brought by the drag chain 7 arranged in this way mainly include:
[0046] Protection: The drag chain 7 can protect the pipeline body 8, etc. from the influence of the external environment. For example, it can prevent the pipeline body 8 from being trampled, impacted, or cut by sharp objects.
[0047] Organization and guidance: The drag chain 7 can effectively organize and guide the pipeline body 8, avoiding them from being scattered on the aerial work platform and reducing the risk of tripping and entanglement.
[0048] Dynamic bending: The drag chain 7 allows the pipeline body 8 to dynamically bend within a certain range to adapt to the movement and telescoping of the aerial work platform, ensuring that the pipeline body 8 will not be damaged due to excessive bending.
[0049] Prolonging service life: By reducing the wear and damage of the pipeline body 8, the drag chain 7 helps to prolong their service life.
[0050] Improving safety: The use of the drag chain 7 can reduce the safety hazards caused by the pipeline body 8 on the aerial work platform, such as preventing the cable from becoming a tripping hazard or accidents caused by improper placement.
[0051] Facilitating maintenance: The pipeline body 8 passes through the inner cavity of the drag chain 7. The use of the drag chain 7 makes the maintenance of the pipeline body 8 more convenient, which is beneficial to the inspection and replacement of the pipeline body 8.
[0052] Aesthetic and tidy: The use of the drag chain 7 can also make the working environment of the aerial work platform look cleaner and more orderly.
[0053] In some embodiments, the pipeline restraint device further includes a fixing plate 14. The fixing plate 14 is fixed to the top end face of the folding arm basic arm 2. The drag chain body at one end of the drag chain 7 away from the bracket 6 is connected to the fixing plate 14 through a third detachable connector 13.
[0054] Of course, the third detachable connector 13 can be a third bolt. Connecting the drag chain 7 to the fixing plate 14 on the folding arm basic arm 2 through the third bolt can facilitate the installation and disassembly of the drag chain 7 and the folding arm basic arm 2.
[0055] In some embodiments, the distance between the fixing plate 14 and the end face of the folding arm basic arm 2 away from the folding arm telescopic arm 3 is greater than half of the length of the folding arm basic arm 2. Adopting such a setting method is beneficial to ensuring the extension length of the folding arm telescopic arm 3 relative to the folding arm basic arm 2, so as to adapt to the movement and telescoping of the aerial work platform.
[0056] In this way, the pipeline body 8 bypasses the hinge point 1 between the turntable and the basic folding arm 2 and enters above the basic folding arm 2. Then, it first passes through the inner cavity of the drag chain 7 along the extension direction of the drag chain 7, then passes through the limiting cavities of the two branch pipes 61, and enters the telescopic folding arm 3. Then, it enters the connecting body 4 through the wire passing hole of the telescopic folding arm 3, and then bypasses the connection position between the connecting body 4 and the main arm 5 and enters the main arm 5.
[0057] When the boom luffs or extends, the pipeline body 8 connecting the turntable to the boom can limit the movement displacement of the pipeline body 8 under the arrangement of the support 6 and the drag chain 7 of this pipeline restraint device, so as to confine the movement of the pipeline body 8 within a limited space, effectively avoiding friction between the pipeline body 8 and the boom and the turntable, and the pipeline body 8 is reasonably arranged. In addition, this pipeline restraint device is symmetrically distributed on both sides of the boom, with a coordinated and beautiful structure.
[0058] An aerial work platform provided by this application includes a turntable, a boom, and a pipeline body 8. The pipeline body 8 includes a hydraulic hose for power transmission and a cable for power control. The pipeline body 8 leads from the turntable to the boom to achieve the luffing and telescopic movements of the boom. The aerial work platform further includes the pipeline restraint device described in the above specific embodiments, and the pipeline restraint device is used to restrain the pipeline body 8 to prevent the pipeline body 8 from interfering with the turntable and the boom. Other parts of the aerial work platform can refer to the related art and will not be elaborated herein.
[0059] It should be noted that in this specification, relational terms such as first and second are only used to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.
[0060] The above has introduced in detail the pipeline restraint device and the aerial work platform provided by this application. Specific examples are used in this article to elaborate on the principle and implementation manner of this application. The description of the above embodiments is only used to help understand the solution and its core idea of this application. It should be pointed out that for those of ordinary skill in the art in this technical field, without departing from the principle of this application, several improvements and modifications can be made to this application, and these improvements and modifications also fall within the protection scope of this application.
Claims
1. A pipeline restraint device, used to connect the folding arm basic arm and the folding arm telescopic arm of the boom, characterized in that: It includes a bracket and a drag chain, the bracket is connected to the folding arm telescopic arm, one end of the drag chain is connected to the bracket, and the other end is connected to the folding arm basic arm, the bracket and the drag chain are used to constrain and limit the pipeline body above the folding arm basic arm during the telescopic movement of the folding arm telescopic arm relative to the folding arm basic arm.
2. The pipeline restraint device according to claim 1, characterized in that: The bracket includes two branch pipes, which are arranged at intervals along the width direction of the drag chain, and both of the branch pipes are provided with a limiting cavity for the pipeline body to pass through.
3. The pipeline restraint device according to claim 2, characterized in that: The two branch pipes are both arranged above the folding arm basic arm, and the axial direction of any branch pipe is parallel to the telescopic direction of the folding arm telescopic arm relative to the folding arm basic arm.
4. The pipeline restraint device according to claim 2, characterized in that: The pipeline restraint device further includes two first connecting plates, wherein one of the first connecting plates is used to connect the drag chain and one of the branch pipes, and the other first connecting plate is used to connect the drag chain and the other branch pipe.
5. The pipeline restraint device according to claim 4, characterized in that: The two first connecting plates are both bent, one end of any of the first connecting plates is welded to the corresponding branch pipe, and the other end is connected to the drag chain via a first detachable connecting piece.
6. The pipeline restraint device according to claim 2, characterized in that: The pipeline restraint device also includes two second connecting plates, one of which is used to connect the folding arm telescopic arm and one of the branch pipes, and the other second connecting plate is used to connect the folding arm telescopic arm and the other branch pipe.
7. The pipeline restraint device according to claim 6, characterized in that: The two second connecting plates have the same structure and are both bent. The two second connecting plates each include a first connecting portion, a second connecting portion and an arcuate transition connecting portion. The arcuate transition connecting portion is connected between the first connecting portion and the second connecting portion. The first connecting portion of any second connecting plate is welded to the outer side wall of the corresponding branch pipe, and the second connecting portion of any second connecting plate is connected to the folding arm telescopic arm through a second detachable connecting piece.
8. The pipeline restraint device according to claim 1, characterized in that: The pipeline restraint device also includes a fixing plate, the drag chain includes a multi-section drag chain body, the fixing plate is fixed to the top end surface of the folding arm basic arm, and the drag chain body at one end of the drag chain away from the bracket is connected to the fixing plate through a third detachable connecting piece.
9. The pipeline restraint device according to claim 8, characterized in that: The distance between the fixing plate and the end surface of the folding arm basic arm away from the folding arm telescopic arm is greater than half of the length of the folding arm basic arm.
10. An aerial work platform, comprising a turntable, a boom and a pipeline body, wherein the pipeline body leads from the turntable to the boom, characterized in that: It also includes a pipeline restraint device as described in any one of claims 1 to 9, wherein the pipeline restraint device is used to restrain the pipeline body to prevent the pipeline body from interfering with the turntable and the arm.