Pipeline built-in telescopic mechanism and engineering equipment

Abstract

This invention discloses a pipeline-integrated telescopic mechanism and engineering equipment. The pipeline-integrated telescopic mechanism includes a boom assembly, a guide assembly, and a pipeline. The telescopic device drives the second boom to extend forward or retract backward relative to the first boom. The guide assembly includes a guide device and a guide rod connected to the tail of the second boom. The guide device is disposed in the gap between the first boom and the second boom. The guide device includes multiple guide grooves extending along the boom extension direction of the second boom. The guide rod is disposed adjacent to the tail end of the second boom. The pipeline travels backward through the guide grooves and then extends forward after passing around the guide rod. The cooperation of the guide device and the guide rod prevents the pipeline from crossing and tangling during the extension and retraction of the second boom, improving the stability of the mechanism's operation. Furthermore, the structure of the pipeline-integrated telescopic mechanism is simpler and more compact, facilitating installation and maintenance.

Description

Technical Field

[0001] This invention belongs to the field of lifting equipment technology, specifically relating to a pipeline-embedded telescopic mechanism and engineering equipment. Background Technology

[0002] During forklift operation, the boom needs to extend and retract frequently, requiring corresponding pipelines to extend and retract synchronously with the boom to deliver hydraulic oil from the chassis to the working attachments to complete the tasks. Therefore, the safety and reliability of the pipeline installation directly affect the performance of the forklift.

[0003] Currently, most vehicles use cable chains or other methods to directly secure the hydraulic hoses to the outside of the boom. While this method is convenient for maintenance, it affects the overall appearance of the vehicle, and external environmental factors such as high temperatures and rain can damage the hydraulic hoses. Running the hoses inside the boom via cable chains complicates the boom's structure, making installation and maintenance more difficult. Without cable chains, the lack of proper guidance and positioning can cause the hydraulic hoses to become compressed and tangled, hindering boom extension and retraction. Summary of the Invention

[0004] To address the aforementioned defects or deficiencies, this invention provides a pipeline-embedded telescopic mechanism and engineering design, aiming to solve the technical problems of complex internal structures in existing pipeline-embedded telescopic booms, and the easy compression, entanglement, and crossing of pipelines during telescopic movement.

[0005] To achieve the above objectives, the present invention provides a pipeline-embedded telescopic mechanism, comprising:

[0006] The boom assembly includes a telescopic device, a first boom, and a second boom. The first boom is sleeved on the outside of the second boom. The telescopic device is used to drive the second boom to extend forward or retract backward relative to the first boom.

[0007] The guide assembly includes a guide device and a guide rod connected to the tail of the second boom. The guide device is disposed in the gap between the first boom and the second boom. The guide device includes multiple guide grooves extending along the boom extension direction of the second boom. The guide rod is disposed adjacent to the tail end of the second boom.

[0008] The pipeline runs backward through the guide groove and then extends forward after passing around the guide rod.

[0009] In this embodiment of the invention, the guiding device includes multiple guide blocks, which are spaced apart at the tail of the second boom, and a guide groove is formed between adjacent guide blocks.

[0010] In this embodiment of the invention, each guide block is detachably connected to the second boom.

[0011] In this embodiment of the invention, each guide block has guide surfaces at both ends along the boom extension direction.

[0012] In this embodiment of the invention, a baffle is also included. The baffle is disposed on the moving part of the telescopic device and located above the guide rod. The side of the baffle facing the tail of the arm is set in an arc shape. The pipeline extends forward after passing around the guide rod and the baffle in sequence.

[0013] In this embodiment of the invention, a blocking member is also provided at the tail of the second boom. The blocking member is disposed opposite to the baffle, and the pipeline passes between the blocking member and the baffle. The side of the blocking member facing the pipeline is set in an arc shape.

[0014] In this embodiment of the invention, a pipe clamp is provided on the second boom. The pipe clamp is sleeved outside the pipeline, and the pipeline is fixed to the pipe clamp after passing through the guide rod and the baffle in sequence.

[0015] In this embodiment of the invention, the guide rod is connected to the second boom via a connecting device. The connecting device includes two connecting plates disposed opposite to each other at the tail of the second boom, and the two ends of the guide rod are connected to the two connecting plates one by one.

[0016] In this embodiment of the invention, the telescopic device is a hydraulic cylinder, which includes a piston rod and a cylinder barrel connected to the piston rod. A first boom is connected to the piston rod, and a second boom is connected to the cylinder barrel. The piston rod is located above a guide rod and is used to separate pipelines that pass around the guide rod.

[0017] To achieve the above objectives, the present invention also provides an engineering device, which includes a pipeline-embedded telescopic mechanism as described above.

[0018] Through the above technical solution, the pipeline built-in telescopic mechanism provided by the embodiments of the present invention has the following beneficial effects:

[0019] Because the guiding device is located in the gap between the second boom and the first boom, and includes multiple guide grooves extending along the boom extension direction of the second boom, with the guide rod adjacent to the tail end of the second boom, the pipeline runs backward through the guide grooves and then extends forward after passing around the guide rod. That is, the pipeline is separated by multiple guide grooves, constraining the extension direction of the pipeline, and the pipeline is vertically guided by the guide rod. Therefore, through the cooperation of the guiding device and the guide rod, the pipeline is prevented from being squeezed, crossed, or tangled during the extension and retraction of the second boom, improving the stability of the mechanism's operation. Furthermore, the guiding device is located in the gap between the second boom and the first boom, which does not occupy the internal space of the second boom, making the structure of the pipeline-integrated telescopic mechanism simpler and more compact, and facilitating the installation and maintenance of the pipeline-integrated telescopic mechanism.

[0020] Other features and advantages of the present invention will be described in detail in the following detailed description section. Attached Figure Description

[0021] The accompanying drawings are provided to illustrate the invention and form part of the specification. They are used together with the following detailed description to explain the invention, but do not constitute a limitation thereof. In the drawings:

[0022] Figure 1 This is a schematic diagram of the structure of a pipeline-embedded telescopic mechanism according to an embodiment of the present invention;

[0023] Figure 2 yes Figure 1 Schematic diagram of the cross section at point AA;

[0024] Figure 3 This is a structural schematic diagram of a pipeline-embedded telescopic mechanism according to an embodiment of the present invention from another perspective;

[0025] Figure 4 for Figure 3 Schematic diagram of the cross-section at point BB;

[0026] Figure 5 This is a schematic diagram of the structure of a pipeline-integrated telescopic mechanism after the first boom is removed at the end of the boom, according to an embodiment of the present invention.

[0027] Explanation of reference numerals in the attached figures

[0028] 100 Telescopic device 110 Piston rod

[0029] 120 cylinder, 200 barrel, first boom

[0030] 300 Second boom 400 Guide assembly

[0031] 410 Guiding device 411 Guiding block

[0032] 412 Guide surface 420 Guide rod

[0033] 500 pipeline 600 baffle

[0034] 700 blocking component 800 pipe clamp

[0035] 900 Connecting Device Detailed Implementation

[0036] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0037] This invention provides a pipeline-embedded telescopic mechanism and engineering machinery, which aims to make the pipeline-embedded telescopic mechanism simple and compact in structure, and to avoid pipeline crossing and entanglement during telescopic operations.

[0038] The pipeline-embedded telescopic mechanism and engineering machinery of the present invention are described below with reference to the accompanying drawings.

[0039] like Figures 1 to 5 As shown, the present invention provides a pipeline-embedded telescopic mechanism, wherein the pipeline-embedded telescopic mechanism includes:

[0040] The boom assembly includes a telescopic device 100, a first boom 200 and a second boom 300, the first boom 200 being sleeved on the second boom 300, and the telescopic device 100 being used to drive the second boom 300 to extend forward or retract backward relative to the first boom 200.

[0041] The guide assembly 400 includes a guide device 410 and a guide rod 420 connected to the tail of the second boom 300. The guide device 410 is disposed in the gap between the first boom 200 and the second boom 300. The guide device 410 includes multiple guide grooves extending along the boom extension direction of the second boom 300. The guide rod 420 is disposed adjacent to the tail end of the second boom 300.

[0042] Pipeline 500 runs backward through the guide groove and extends forward after passing around the guide rod 420.

[0043] The extension direction of the guide rod 420 can be perpendicular to the extension direction of the guide groove to guide the pipeline 500 passing through the guide groove. The pipeline 500 is laid in the gap between the first boom 200 and the second boom 300. After passing through the guide groove and going around the guide rod 420, the pipeline 500 extends forward along the second boom 300 to the boom head working assembly.

[0044] Because the guide device 410 is located in the gap between the second boom 300 and the first boom 200, and the guide device 410 includes multiple guide grooves extending along the boom extension direction of the second boom 300, and the guide rod 420 is adjacent to the tail end of the second boom 300, the pipeline 500 runs backward through the guide grooves and extends forward after passing around the guide rod 420. That is, the pipeline 500 is separated by multiple guide grooves, constraining the extension direction of the pipeline 500, and the pipeline 500 is constrained by the guide rod 420. The guide device 410 provides vertical guidance, and through the cooperation of the guide device 410 and the guide rod 420, it prevents the pipeline 500 from being squeezed, crossed, or tangled when the second boom 300 is extended or retracted, thus improving the stability of the mechanism's operation. Furthermore, the guide device 410 is located in the gap between the second boom 300 and the first boom 200, so it does not occupy the internal space of the second boom 300. This makes the structure of the pipeline-in-place telescopic mechanism simpler and more compact, and facilitates the installation and maintenance of the pipeline-in-place telescopic mechanism.

[0045] like Figure 4 As shown in the embodiment of the present invention, the guiding device 410 includes multiple guide blocks 411, which are spaced apart at the tail of the second boom 300, and a guide groove is formed between adjacent guide blocks 411. The multiple guide blocks 411 form multiple guide grooves for the routing of the pipeline 500 at the tail of the second boom 300, that is, the pipeline 500 is separated by the multiple guide blocks 411, constraining the extension and retraction direction of the pipeline 500. The simple structure of the guide blocks 411 and the guide rod 420 simplifies the tail structure of the pipeline-embedded telescopic mechanism, reduces production costs, and facilitates installation and maintenance. One end of each guide block 411 is connected to the tail of the second boom 300, and the other end protrudes from the tail of the second boom 300. The guide rod 420 is positioned above the guide blocks 411, facilitating the routing and bypassing of the pipeline 500.

[0046] Please refer to Figure 2 and Figure 4 In this embodiment of the invention, each guide block 411 is detachably connected to the second boom 300. The movement area of ​​the pipeline 500 can be effectively restricted by adjusting the number and position of the guide blocks 411. Alternatively, guide blocks 411 of different heights can be selected to match different gaps between the first boom 200 and the second boom 300, thereby controlling the vertical and horizontal movement space of the pipeline 500 within the gap between the first boom 200 and the second boom 300, and preventing the pipeline 500 from crossing within the gap. In one embodiment, the guide blocks 411 and the second boom 300 can be detachably connected by screws.

[0047] Please refer to Figure 4In this embodiment of the invention, each guide block 411 is provided with a guide surface 412 at both ends along the telescopic direction of the boom. By providing the guide surface 412, the movement of the pipeline 500 is guided, further preventing the pipeline 500 from being squeezed and deformed during the process of entering and exiting the guide groove.

[0048] like Figure 2 and Figure 5 As shown, in this embodiment of the invention, the built-in telescopic mechanism for the pipeline also includes a baffle 600. The baffle 600 is disposed on the moving part of the telescopic device 100 and located above the guide rod 420. The side of the baffle 600 facing the arm tail is arc-shaped. The pipeline 500 passes through the guide rod 420 and the baffle 600 in sequence and extends forward to the arm head working assembly. The baffle 600 is installed on the moving part of the telescopic device 100. When the telescopic device 100 is in operation, it will drive multiple guide blocks 411, guide rod 420 and baffle 600 to move together. The baffle 600 provides further guidance for the pipeline 500 that passes through the guide groove and around the guide rod 420. The side of the baffle 600 facing the arm tail is arc-shaped, that is, the pipeline 500 passes through the arc-shaped side of the baffle 600, which can prevent the pipeline 500 from being worn when passing through the baffle 600.

[0049] Please refer to Figure 2 and Figure 5 In this embodiment of the invention, the pipeline-embedded telescopic mechanism further includes a blocking member 700 disposed at the tail of the second boom 300. The blocking member 700 is disposed opposite to the baffle 600, and the pipeline 500 passes between the blocking member 700 and the baffle 600. The side of the blocking member 700 facing the pipeline 500 is arc-shaped. By providing the blocking member 700 at the upper part of the tail of the second boom 300 and setting the side of the blocking member 700 facing the pipeline 500 to be arc-shaped, when the second boom 300 retracts, the pipeline 500 contacts the blocking member 700, thus preventing friction between the pipeline 500 and the upper surface of the tail of the second boom 300. In one embodiment, the blocking member 700 can be made of round steel and welded to the second boom 300. Furthermore, since the telescopic device 100, guide block 411, guide rod 420, baffle, and blocking member 700 are all disposed at the tail of the boom, the operator can complete the adjustment and replacement of the corresponding parts only at the tail of the boom, facilitating maintenance.

[0050] Please refer to Figure 2In this embodiment of the invention, a pipe clamp 800 is provided on the second boom 300. The pipe clamp 800 is sleeved around the pipeline 500, and the pipeline 500 is fixed to the pipe clamp 800 after passing through the guide rod 420 and the baffle 600 in sequence. The pipe clamp 800 further clamps and constrains the pipeline 500, and the pipeline 500 is relatively fixed to the pipe clamp 800. When the second boom 300 extends, the pipe clamp 800 pulls the pipeline 500 to move it. In other embodiments, other fasteners can also be provided on the second boom 300, as long as they can fix the pipeline 500 relatively above the second boom 300.

[0051] Please refer to Figure 2 and Figure 5 In this embodiment of the invention, the guide rod 420 is connected to the second boom 300 via a connecting device 900. The connecting device 900 includes two connecting plates disposed opposite each other at the tail of the second boom 300, and both ends of the guide rod 420 are connected to the two connecting plates respectively. Since the guide rod 420 needs to be positioned above the guide block 411, the connecting device 900 is provided to facilitate the installation of the guide rod 420. The connecting device 900 fixes the guide rod 420 to the tail of the second boom 300, and the guide rod 420 is disposed adjacent to the tail end of the second boom 300. The two ends of the guide rod 420 can be connected to the ends of the two connecting plates furthest from the second boom 300 via pins.

[0052] Please refer to Figure 2 and Figure 5 In this embodiment of the invention, the telescopic device 100 is a hydraulic cylinder, which includes a piston rod 110 and a cylinder barrel 120 connected to the piston rod 110. The first boom 200 is connected to the piston rod 110, and the second boom 300 is connected to the cylinder barrel 120. That is, the fixed part of the hydraulic cylinder is the piston rod 110, and the moving part of the hydraulic cylinder is the cylinder barrel 120. The piston rod 110 of the hydraulic cylinder is fixed to the first boom 200 by a pin. Through the telescopic movement of the cylinder barrel 120, the second boom 300 is driven to telescopically move relative to the first boom 200. The piston rod 110 can be located above the guide rod 420 and is used to separate the pipeline 500 that passes around the guide rod 420. That is, by using the piston rod 110 to make a large separation of the pipeline 500, the loose pipeline 500 is further prevented from crossing and tangling inside the pipeline-in-built telescopic mechanism when the second boom 300 retracts, thereby ensuring the stable operation of the pipeline-in-built telescopic mechanism.

[0053] To achieve the above objectives, the present invention further provides an engineering device, wherein the engineering device includes a pipeline-embedded telescopic mechanism as described above. Since the engineering device adopts all the technical solutions of the above embodiments, it possesses at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be elaborated upon here.

[0054] In the description of this invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0055] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0056] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0057] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A pipeline built-in telescoping mechanism, characterized by, The pipeline built-in telescopic mechanism comprises: An arm support assembly comprises a telescopic device (100), a first arm support (200) and a second arm support (300), the first arm support (200) is sleeved outside the second arm support (300), and the telescopic device (100) is used for driving the second arm support (300) to extend forward or retract backward relative to the first arm support (200); A guide assembly (400) comprises a guide device (410) connected with the tail of the second arm support (300) and a guide rod (420), the guide device (410) is arranged in a gap between the first arm support (200) and the second arm support (300), the guide device (410) comprises a plurality of guide grooves extending along the telescopic direction of the second arm support (300), and the guide rod (420) is arranged adjacent to the tail end of the second arm support (300), and the extension direction of the guide rod (420) is perpendicular to the extension direction of the guide grooves; The guide device (410) comprises a plurality of guide blocks (411), the plurality of guide blocks (411) are arranged at intervals at the tail of the second arm support (300), the guide grooves are formed between two adjacent guide blocks (411), one end of the plurality of guide blocks (411) is connected with the tail of the second arm support (300), the other end of the plurality of guide blocks (411) is exposed at the tail of the second arm support (300), and the guide rod (420) is arranged above the guide blocks (411); and guide surfaces (412) are arranged at both ends of each guide block (411) along the telescopic direction of the arm support. A pipeline (500) is routed backward through the guide grooves and extends forward after bypassing the guide rod (420); A baffle (600) is arranged on the moving part of the telescopic device (100) and above the guide rod (420), one side of the baffle (600) towards the tail of the arm support is arranged in an arc shape, and the pipeline (500) extends forward after bypassing the guide rod (420) and the baffle (600) in sequence.

2. The inline telescoping mechanism of claim 1, wherein, Each guide block (411) is detachably connected with the second arm support (300).

3. The inline telescoping mechanism of claim 1, wherein, A blocking piece (700) is arranged at the tail of the second arm support (300), the blocking piece (700) is arranged opposite to the baffle (600), the pipeline (500) passes between the blocking piece (700) and the baffle (600), and one side of the blocking piece (700) towards the pipeline (500) is arranged in an arc shape.

4. The inline telescoping mechanism of claim 1, wherein, A pipe clamp (800) is arranged on the second arm support (300), the pipe clamp (800) is sleeved outside the pipeline (500), and the pipeline (500) is fixed to the pipe clamp (800) in sequence after bypassing the guide rod (420) and the baffle (600).

5. The inline telescoping mechanism of any of claims 1-2, wherein, The guide rod (420) is connected with the second arm support (300) through a connecting device (900), the connecting device (900) comprises two connecting plates oppositely arranged at the tail of the second arm support (300), and the two ends of the guide rod (420) are connected with the two connecting plates one by one.

6. The inline telescoping mechanism of any of claims 1-2, wherein, The telescopic device (100) is an oil cylinder, the oil cylinder comprises a piston rod (110) and a cylinder barrel (120) connected with the piston rod (110), the first arm support (200) is connected with the piston rod (110), the second arm support (300) is connected with the cylinder barrel (120), and the piston rod (110) is arranged above the guide rod (420) and used for separating pipelines (500) bypassing the guide rod (420).

7. An engineering apparatus characterised in that, The engineering equipment comprises the pipeline built-in telescopic mechanism according to any one of claims 1-6.

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