Hydraulic folding telescopic boom

Abstract

The utility model discloses a hydraulic folding telescopic boom, relates to the technical field of engineering trolleys, and can solve the problems that a single pipeline is inconvenient to replace at present, and a hydraulic pipeline is easy to pull and damage due to the fact that the pipeline is easy to fall and pull between two adjacent frame-shaped structures. The hydraulic folding telescopic boom comprises a rotary table, a boom body, a connecting rod assembly, an oil cylinder assembly and a plurality of pipeline splitting and fixing structures which are fixed to the boom body and used for restraining and fixing pipelines. The pipeline bundle splitting and fixing structure comprises a support used for being fixed to the side wall of the arm support body, a pipe clamping assembly used for clamping a plurality of scattered pipelines and a pipe hanging frame used for supporting and hanging a plurality of bundled pipelines. The pipe hanging frame is fixedly connected to the support. The pipe clamping assembly is fixedly connected to the support or fixedly connected to the support through a pipe hanging frame.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering trolleys, in particular to a hydraulic folding telescopic boom. Background Art

[0002] In the field of construction engineering such as tunnel construction, it is necessary to use an engineering trolley with a hydraulic telescopic boom for construction. The hydraulic telescopic boom is usually composed of more than two arm sections. A plurality of hydraulic pipelines and cables are usually arranged on the hydraulic telescopic boom so that the actuator on the hydraulic telescopic boom can be driven by hydraulic oil to set the hydraulic telescopic boom to complete corresponding construction actions such as pitching and tilting.

[0003] Generally speaking, in order to avoid pulling the hydraulic pipelines during the construction action of the hydraulic telescopic boom, the length of the hydraulic pipelines and cables is usually greater than the maximum length of the hydraulic telescopic boom. In order to avoid the hydraulic pipelines and cables from sagging irregularly, the current solution is usually to support the tied hydraulic pipelines on the hydraulic telescopic boom using a frame structure. However, in this solution, since multiple hydraulic pipelines are supported by a frame structure, it is more troublesome to disassemble and replace damaged hydraulic pipelines. In addition, the tied hydraulic pipelines and cables will slip between two adjacent frame structures, causing the hydraulic pipelines and cables to fall and be pulled. In particular, the hydraulic pipelines also contain hydraulic oil, and the weight of the hydraulic pipelines and the hydraulic oil together is relatively large, which can easily cause damage to the cables and hydraulic pipelines during the falling and pulling process. Utility Model Content

[0004] The purpose of the present application is to provide a hydraulic folding telescopic boom, which is used to solve the problem that the current hydraulic pipelines and cables are supported by a frame structure, a single pipeline is inconvenient to replace, and the pipeline is prone to falling and pulling between two adjacent frame structures, causing the hydraulic pipeline to be easily pulled and damaged.

[0005] In order to solve the above technical problems, the utility model adopts the following solutions:

[0006] The present application provides a hydraulic folding telescopic boom, comprising a turntable, a boom body, a connecting rod assembly, a cylinder assembly, and a plurality of pipeline bundle fixing structures fixed on the boom body and used to constrain and fix pipelines;

[0007] The pipeline bundle fixing structure includes a bracket for fixing on the side wall of the boom body, a pipe clamping assembly for clamping a plurality of dispersed pipelines, and a pipe hanging rack for supporting a plurality of bundled pipelines;

[0008] The pipe hanging rack is fixedly connected to the bracket;

[0009] The pipe clamping assembly is fixedly connected to the bracket or is fixedly connected to the bracket through a pipe hanging rack.

[0010] Preferably, it also includes a hydraulic pipeline, which is led out from the inside of the turntable, laid along the boom body, and fixed by the pipeline bundle fixing structure.

[0011] Preferably, the arm frame body comprises a rotatably connected large arm and a curved arm, and a telescopic arm located inside the large arm and slidably connected thereto, and one end of the curved arm away from the large arm is rotatably connected to the turntable;

[0012] The hydraulic pipelines at the rotating connection of the boom and the curved arm are tied together by cables and chains.

[0013] Preferably, on the boom or the curved arm, the hydraulic pipelines between adjacent pipeline bundle fixing structures are wrapped together by a wrapping cloth.

[0014] Preferably, a wire-passing plate is provided at the end of the crank arm away from the boom, and the hydraulic pipeline is first connected to the wire-passing plate after being led out from the inside of the turntable, and then laid along the boom body and fixed by the pipeline bundle fixing structure.

[0015] Preferably, the arm frame body comprises a rotatably connected large arm and a curved arm, and a telescopic arm located inside the large arm and slidably connected thereto, and one end of the curved arm away from the large arm is rotatably connected to the turntable;

[0016] The connecting rod assembly includes a hinged first connecting rod and a second connecting rod, and the ends of the first connecting rod and the second connecting rod away from the hinge point are respectively rotatably connected to the turntable and the crank arm. The connecting rod assembly also includes a hinged third connecting rod and a fourth connecting rod, and the ends of the third connecting rod and the fourth connecting rod away from the hinge point are respectively hinged to the crank arm and the upper arm.

[0017] Preferably, the cylinder assembly includes a swing cylinder and a pitch cylinder that are arranged in opposite directions, and a telescopic cylinder located in the boom and used to push the telescopic arm, wherein:

[0018] The output end of the swing oil cylinder is rotatably connected to the hinge point of the first connecting rod and the second connecting rod, and the other end of the swing oil cylinder is hinged to the crank arm;

[0019] The output end of the pitch oil cylinder is rotatably connected to the hinge point of the third connecting rod and the fourth connecting rod, and the other end of the pitch oil cylinder is hinged to the crank arm;

[0020] The swing oil cylinder, the pitch oil cylinder and the telescopic oil cylinder are communicated with the hydraulic pump through pipelines fixed on the pipeline branching fixing structure.

[0021] Preferably, the bracket includes a mounting plate for fixing on the arm support body, and a supporting seat fixed on the mounting plate and extending in the horizontal direction;

[0022] The pipe clamping assembly and the pipe hanging frame are respectively fixed on two sides of the supporting seat.

[0023] Preferably, the supporting seat comprises a mounting side plate fixedly attached to the mounting plate and detachably connected thereto, and a supporting plate vertically fixed to the mounting side plate and extending in the horizontal direction;

[0024] The pipe clamping assembly and the pipe hanging rack are detachably fixed on the top and bottom of the supporting plate respectively.

[0025] Preferably, the supporting seat also includes a reinforcing plate for improving the bearing capacity of the supporting plate, the reinforcing plate is vertically fixed to the mounting side plate and is perpendicular to the supporting plate, and the reinforcing plate is fixed to the top or bottom of the supporting plate.

[0026] Preferably, at least two reinforcing plates are provided, and the two reinforcing plates are arranged in parallel and are respectively located on both sides of the pipe clamping assembly and the pipe hanging rack;

[0027] The tops of the two reinforcement plates are provided with supporting notches for supporting the hydraulic pipelines.

[0028] Preferably, the shape of the pipe hanging rack is a U-shape or a semicircle with an open top, and both ends of the top of the pipe hanging rack are provided with external threads;

[0029] The two ends of the top of the pipe hanging rack respectively penetrate the supporting seat and are fixed to the bottom of the supporting seat through locking frame nuts adapted to the external threads.

[0030] Preferably, the tube clamping assembly comprises a lower tube clamping block and an upper tube clamping block stacked up and down, and a tube locking bolt for locking the lower tube clamping block and the upper tube clamping block;

[0031] A semicircular pipe clamping lower groove is arranged on the top of the lower pipe clamping block;

[0032] The bottom of the upper pipe clamping block is provided with a semicircular pipe clamping upper groove adapted to the pipe clamping lower groove;

[0033] The lower pipe clamping groove and the upper pipe clamping groove can form a circular pipe clamping notch.

[0034] Preferably, two of the upper tube clamping grooves and the lower tube clamping grooves are provided, the tube locking bolt passes through the upper tube clamping block and is threadedly connected to the lower tube clamping block, and the tube locking bolt is located between the two upper tube clamping grooves and the two lower tube clamping grooves.

[0035] Beneficial effects of the utility model:

[0036] The present application clamps and fixes several individual pipelines through a tube clamping assembly, and uses a pipe hanging rack to support multiple bundled pipelines, so that the pipeline bundle fixing structure of the present application can not only use the tube clamping assembly to lift up the easily damaged pipelines individually, which is convenient for pipeline replacement, but also makes the hydraulic pipeline layout more beautiful and simple. At the same time, a single dispersed pipeline and multiple bundled pipelines can also form a fork at the pipeline bundle structure of the present application, which can avoid the hydraulic pipelines and multiple cables in the prior art from moving unrestrictedly in the frame structure, causing the pipelines to move between two adjacent frame structures, causing the drooping part of the pipeline to pull the hanging and lifting parts, and then causing the hydraulic pipeline to be easily damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 This is a schematic diagram of the main structure of an embodiment of the present application;

[0038] Figure 2 This is a schematic diagram of the three-dimensional structure of the pipeline bundle splitting mechanism in the embodiment of the present application;

[0039] Figure 3 This is a schematic diagram of the main structure of the pipeline bundle splitting mechanism in the embodiment of the present application;

[0040] Figure 4 This is a schematic diagram of the three-dimensional structure of the pipe clamping assembly on the chain rack in the embodiment of the present application;

[0041] Figure 5 This is a schematic diagram of the main structure of the pipeline bundle splitting mechanism distributed on the boom body in the embodiment of the present application;

[0042] Description of reference numerals:

[0043] 1- pipeline bundle fixing structure, 11- mounting plate, 12- supporting seat, 121- mounting side plate, 122- supporting plate, 123- reinforcing plate, 124- hosting slot, 13- pipe hanging rack, 131- locking rack nut, 14- pipe clamping assembly, 141- lower pipe clamping block, 142- upper pipe clamping block, 143- locking pipe bolt, 144- pipe clamping upper groove, 145- pipe clamping lower groove, 2- arm frame body, 15- hanging chain rack, 200- turntable, 300- curved arm, 310- first connecting rod, 320- second connecting rod, 330- swing cylinder, 340- wire plate, 400- big arm, 410- third connecting rod, 420- fourth connecting rod, 430- pitch cylinder, 500- telescopic arm. DETAILED DESCRIPTION

[0044] The present invention will be further described in detail below in conjunction with the embodiments and drawings, but the implementation manner of the present invention is not limited thereto.

[0045] In the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inside", "outside", "front", "back", "top", "bottom", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model.

[0046] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "open", "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] The present invention is described in detail below with reference to the accompanying drawings and in combination with embodiments:

[0048] like Figures 1 to 5 As shown, this embodiment provides:

[0049] A hydraulic folding telescopic boom, comprising a turntable 200, a boom body 2, a connecting rod assembly, a cylinder assembly, and a plurality of pipeline bundle fixing structures 1 fixed on the boom body 2 and used for restraining and fixing pipelines;

[0050] The pipeline bundle fixing structure 1 includes a bracket for fixing on the side wall of the boom body 2, and a pipe clamping assembly 14 for clamping a plurality of dispersed pipelines and a pipe hanging rack 13 for hanging a plurality of bundled pipelines;

[0051] The pipe hanging rack 13 is fixedly connected to the bracket;

[0052] The pipe clamping assembly 14 is fixedly connected to the bracket or is fixedly connected to the bracket through the pipe hanging bracket 13 .

[0053] The present application clamps and fixes several individual pipelines through the tube clamping assembly 14, and uses the tube hanging rack 13 to support multiple bundled pipelines, so that the pipeline bundling and fixing structure 1 of the present application can not only lift up the easily damaged pipelines individually by using the tube clamping assembly 14, thereby facilitating the replacement of pipelines, but also the single dispersed pipelines and the bundled multiple pipelines can form a fork at the pipeline bundling structure of the present application, which can avoid the hydraulic pipelines and multiple cables in the prior art from moving unrestrictedly in the frame structure, causing the pipelines to move between two adjacent frame structures, causing the drooping part of the pipeline to pull the hanging and lifting parts, and then causing the hydraulic pipeline to be easily damaged.

[0054] In this embodiment, the pipeline parts between the pipeline bundling structures can be tightly wrapped with a wrapping cloth, in order to make the pipeline layout more beautiful and neat.

[0055] When laying hydraulic pipelines to the hydraulic folding telescopic boom, the hydraulic pipelines can be led out from the inside of the turntable 200, laid along the boom body 2, and fixed by the pipeline bundle fixing structure 1, so as to avoid interference between scattered pipelines when the hydraulic folding telescopic boom is working.

[0056] In some preferred embodiments, the arm frame body 2 includes a rotatably connected large arm 400 and a curved arm 300, and a telescopic arm 500 located in the large arm 400 and slidably connected thereto, and one end of the curved arm 300 away from the large arm 400 is rotatably connected to the turntable 200;

[0057] The hydraulic pipelines at the rotating connection of the boom 400 and the crank arm 300 are bound together by a cable chain. By binding the hydraulic pipelines by the cable chain, the hydraulic pipelines can be close to the boom body 2, and sufficient space is reserved for the hydraulic pipelines when the boom 400 and the crank arm 300 are rotating.

[0058] In some preferred embodiments, on the boom 400 or the curved arm 300 , the hydraulic pipelines between adjacent pipeline bundle fixing structures 1 are wrapped together by a wrapping cloth.

[0059] In some preferred embodiments, a wire plate 340 is provided at one end of the crank arm 300 away from the boom 400, and the hydraulic pipeline is first connected to the wire plate 340 after being led out from the inside of the turntable 200, and then laid along the boom body 2 and fixed by the pipeline bundle fixing structure 1. The wire plate 340 is provided to facilitate the disassembly, assembly and maintenance of the hydraulic pipeline.

[0060] That is, the pipeline direction order in this embodiment is: turntable 200, wire plate 340 on the crank arm 300, pipeline bundle structure on the crank arm 300, pipeline bundle structure on the boom 400, and pipeline bundle structure on the telescopic arm 500.

[0061] In some preferred embodiments, the connecting rod assembly includes a hinged first connecting rod 310 and a second connecting rod 320, and the ends of the first connecting rod 310 and the second connecting rod 320 away from the hinge point are rotatably connected to the turntable 200 and the crank arm 300, respectively. The connecting rod assembly also includes a hinged third connecting rod 410 and a fourth connecting rod 420, and the ends of the third connecting rod 410 and the fourth connecting rod 420 away from the hinge point are respectively hinged to the crank arm 300 and the boom 400. Through the boom 400, the crank arm 300 and the telescopic arm 500, the boom body 2 can achieve folding and telescopic functions. In this embodiment, the folding action and telescopic action of the boom body 2 are driven by the cylinder assembly.

[0062] In some preferred embodiments, the cylinder assembly includes a swing cylinder 330 and a pitch cylinder 430 that are arranged in opposite directions, and a telescopic cylinder located in the boom 400 and used to push the telescopic arm 500. The dispersed pipeline of the pipeline assembly includes a hydraulic pipeline connected to the swing cylinder 330, the pitch cylinder 430 and the telescopic cylinder, wherein:

[0063] The output end of the swing cylinder 330 is rotatably connected to the hinge point of the first connecting rod 310 and the second connecting rod 320, and the other end of the swing cylinder 330 is hinged to the crank arm 300;

[0064] The output end of the pitch cylinder 430 is rotatably connected to the hinge point of the third connecting rod 410 and the fourth connecting rod 420, and the other end of the pitch cylinder 430 is hinged to the crank arm 300;

[0065] The dispersed pipelines of the pipeline assembly include hydraulic pipelines with the swing cylinder 330, the pitch cylinder 430 and the telescopic cylinder. The swing cylinder 330, the pitch cylinder 430 and the telescopic cylinder are all driven by the hydraulic oil in the hydraulic pipelines.

[0066] In some preferred embodiments, the bracket includes a mounting plate 11 for fixing on the arm body 2, and a supporting seat 12 fixed on the mounting plate 11 and extending in the horizontal direction;

[0067] The pipe clamping assembly 14 and the pipe hanging rack 13 are respectively fixed on both sides of the support seat 12. In this embodiment, the support seat 12 is detachably connected to the mounting plate 11 fixed to the side wall of the boom body 2 by bolts. The pipe clamping assembly 14 and the pipe hanging rack 13 are respectively located on both sides of the support seat 12, so that the hydraulic pipeline and the cable are respectively located on both sides of the support seat 12, so that the support seat 12 supports the hydraulic pipeline and multiple cables at the same time. In some embodiments, two support seats 12 can also be provided, which are respectively fixedly connected to the pipe clamping assembly 14 and the pipe hanging rack 13, so that the hydraulic pipeline and the cable can be hung on the boom body 2 through different support seats 12.

[0068] In some preferred embodiments, the supporting seat 12 includes mounting side plates 121 that are fitted and fixed to the mounting plate 11 and are detachably connected thereto, and a supporting plate 122 that is vertically fixed to the mounting side plates 121 and extends in the horizontal direction;

[0069] The pipe clamping assembly 14 and the pipe hanging rack 13 are respectively detachably fixed to the top and bottom of the supporting plate 122. In this embodiment, the pipe clamping assembly 14 is located above the pipe hanging rack 13, so that the pipelines that are easily damaged are located above the bundled multiple pipelines. After all the pipelines are arranged, other pipelines will not block the replacement of the pipelines on the pipe clamping assembly 14, making the replacement of the pipelines on the pipe clamping assembly 14 more convenient.

[0070] In some preferred embodiments, the supporting seat 12 further includes a reinforcing plate 123 for enhancing the bearing capacity of the supporting plate 122. The reinforcing plate 123 is vertically fixed to the mounting side plates 121 and is perpendicular to the supporting plate 122. The reinforcing plate 123 is fixed to the top or bottom of the supporting plate 122. By providing the reinforcing plate 123, the tensile performance of the supporting plate 122 can be effectively increased, and the supporting performance of the supporting plate 122 can be improved.

[0071] In some preferred embodiments, at least two reinforcing plates 123 are provided. The two reinforcing plates 123 are arranged in parallel and are respectively located on both sides of the pipe clamping assembly 14 and the pipe hanging rack 13;

[0072] Both tops of the two reinforcing plates 123 are provided with托管槽口 124 for holding the hydraulic pipeline. In this embodiment, two reinforcing plates 123 are provided and are integrally cast with the supporting plate 122. In this embodiment, the supporting plate 122 and the reinforcing plate 123 of the supporting seat 12 can be made of C-shaped steel and then cut out the托管槽口 124. In some embodiments, the reinforcing plate 123 and the supporting plate 122 can also be fixed by welding.

[0073] In some preferred embodiments, the pipe hanging rack 13 is in the shape of a U-shaped or semi-circular shape with an open top, and external threads are provided at both ends of the top of the pipe hanging rack 13;

[0074] Both ends of the top of the pipe hanging rack 13 respectively penetrate through the supporting seat 12 and are fixed to the bottom of the supporting seat 12 by lock rack nuts 131 adapted to the external threads. In this embodiment, the pipe hanging rack 13 is semi-circular. In some embodiments, the pipe hanging rack 13 can also be U-shaped,匚-shaped with the opening upward, etc. In some embodiments, the pipe hanging rack 13 can also be in other shapes such as an inverted E-shaped, square-shaped, oval-shaped, etc. Those skilled in the art can deform according to needs and will not be elaborated here.

[0075] In some preferred embodiments, the pipe clamping assembly 14 includes a lower pipe clamping block 141 and an upper pipe clamping block 142 stacked vertically, and a pipe locking bolt 143 for locking the lower pipe clamping block 141 and the upper pipe clamping block 142;

[0076] The top of the lower pipe clamping block 141 is provided with a semi-circular lower pipe clamping groove 145;

[0077] The bottom of the upper pipe clamping block 142 is provided with a semi-circular upper pipe clamping groove 144 adapted to the lower pipe clamping groove 145;

[0078] The lower pipe clamping groove 145 and the upper pipe clamping groove 144 can form a circular pipe clamping notch. The vertically stacked lower pipe clamping block 141 and upper pipe clamping block 142 enable the hydraulic pipeline to be clamped between the upper pipe clamping groove 144 and the lower pipe clamping groove 145 of the upper pipe clamping block 142 and the lower pipe clamping block 141, and the circular pipe clamping notch formed by the lower pipe clamping groove 145 and the upper pipe clamping groove 144 is adapted to the hydraulic pipeline. The lower pipe clamping block 141 and the upper pipe clamping block 142 are locked by the pipe locking bolt 143, which can conveniently place the liquid medicine pipeline between the lower pipe clamping block 141 and the upper pipe clamping block 142, or remove the hydraulic pipeline from the pipe clamping assembly 14.

[0079] In some preferred embodiments, there are two upper pipe clamping grooves 144 and two lower pipe clamping grooves 145. The pipe locking bolt 143 passes through the upper pipe clamping block 142 and is threadedly connected to the lower pipe clamping block 141, and the pipe locking bolt 143 is located between the two upper pipe clamping grooves 144 and the two lower pipe clamping grooves 145.

[0080] In some preferred embodiments, as Figure 4 shown, it further includes a hanging chain rack 15 fixed at the bending part of the boom main body 2. The hanging chain rack 15 is fixedly welded to the pipe clamping assembly 14, and the shape of the hanging chain rack 15 is C-shaped or U-shaped;

[0081] It further includes an L-shaped mounting seat plate. The two ends of the hanging chain rack 15 are respectively detachably and fixedly connected to a mounting seat plate. This embodiment is located at the bending part of the boom main body 2 and is used to support the hydraulic pipeline extending to the telescopic oil cylinder. The hanging chain rack 15 is used to connect an iron chain, and the iron chain can be used to assist in hanging and fixing the hydraulic pipeline.

[0082] It can be understood that the above embodiments are merely exemplary embodiments adopted to illustrate the principle of the present invention. However, the present invention is not limited thereto. For those of ordinary skill in the art, various deformations and improvements can be made without departing from the spirit and essence of the present invention, and these deformations and improvements are also regarded as the protection scope of the present invention.

Claims

1. A hydraulic foldable telescopic boom, characterized in that: It comprises a turntable (200), a boom body (2), a connecting rod assembly, a cylinder assembly, and a plurality of pipeline bundle fixing structures (1) fixed on the boom body (2) and used to constrain and fix pipelines: The pipeline bundle fixing structure (1) comprises a bracket for fixing on the side wall of the boom body (2), and a pipe clamping assembly (14) for clamping a plurality of dispersed pipelines and a pipe hanging rack (13) for hanging a plurality of bundled pipelines. The pipe hanging rack (13) is fixedly connected to the bracket; The pipe clamping assembly (14) is fixedly connected to the bracket or is fixedly connected to the bracket via a pipe hanging rack (13).

2. The hydraulic foldable telescopic boom according to claim 1, characterized in that: It also includes a hydraulic pipeline, which is led out from the inside of the turntable (200), laid along the boom body (2), and fixed by the pipeline bundle fixing structure (1).

3. The hydraulic foldable telescopic boom according to claim 2, characterized in that: The arm frame body (2) comprises a rotatably connected large arm (400) and a curved arm (300), and a telescopic arm (500) located inside the large arm (400) and slidably connected thereto, wherein one end of the curved arm (300) away from the large arm (400) is rotatably connected to the turntable (200); The hydraulic pipelines at the rotating connection of the boom (400) and the crank arm (300) are bound together by a cable chain.

4. The hydraulic foldable telescopic boom according to claim 3, characterized in that: On the boom (400) or the curved arm (300), the hydraulic pipelines between adjacent pipeline bundle fixing structures (1) are wrapped together by a wrapping cloth.

5. The hydraulic foldable telescopic boom according to claim 3, characterized in that: A wire-passing plate (340) is provided at one end of the crank arm (300) away from the boom (400); the hydraulic pipeline is led out from the inside of the turntable (200) and first connected to the wire-passing plate (340), then laid along the boom body (2), and fixed by the pipeline bundle fixing structure (1).

6. The hydraulic foldable telescopic boom according to claim 1, characterized in that: The bracket comprises a mounting plate (11) for fixing on the arm bracket body (2), and a supporting seat (12) fixedly attached to the mounting plate (11) and extending in a horizontal direction; The pipe clamping assembly (14) and the pipe hanging frame (13) are respectively fixed on two sides of the supporting seat (12).

7. The hydraulic foldable telescopic boom according to claim 6, characterized in that: The supporting seat (12) comprises a mounting side plate (121) fixedly attached to the mounting plate (11) and detachably connected thereto, and a supporting plate (122) vertically fixed to the mounting side plate (121) and extending in a horizontal direction; The pipe clamping assembly (14) and the pipe hanging frame (13) are respectively detachably fixed on the top and bottom of the supporting plate (122).

8. The hydraulic foldable telescopic boom according to claim 6, characterized in that: The shape of the pipe hanging rack (13) is a U-shape or a semicircle with an open top, and both ends of the top of the pipe hanging rack (13) are provided with external threads; The two ends of the top of the pipe hanging frame (13) respectively penetrate the supporting seat (12) and are fixed to the bottom of the supporting seat (12) through locking frame nuts (131) adapted to the external threads.

9. The hydraulic foldable telescopic boom according to claim 1, characterized in that: The tube clamping assembly (14) comprises a lower tube clamping block (141) and an upper tube clamping block (142) which are stacked up and down, and a tube locking bolt (143) for locking the lower tube clamping block (141) and the upper tube clamping block (142); A semicircular tube clamping lower groove (145) is provided on the top of the lower tube clamping block (141); A semicircular tube clamping upper groove (144) is provided at the bottom of the upper tube clamping block (142) and is adapted to the tube clamping lower groove (145); The pipe clamping lower groove (145) and the pipe clamping upper groove (144) can form a circular pipe clamping notch.

10. The hydraulic foldable telescopic boom according to claim 9, characterized in that: Two of the tube clamping upper grooves (144) and two of the tube clamping lower grooves (145) are provided, and the tube locking bolt (143) passes through the upper tube clamping block (142) and is threadedly connected to the lower tube clamping block (141), and the tube locking bolt (143) is located between the two tube clamping upper grooves (144) and the two tube clamping lower grooves (145).

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