Construction crane with easy operation

Abstract

This application discloses a convenient construction crane. Multiple intermediate components connect two parallel tracks. A support plate is slidably mounted at each end of the intermediate components along their length. The base includes a mounting seat and two telescopic support seats, each with a transfer wheel at each end along its length. This convenient construction crane allows for material transfer by adjusting the length and distance of the two tracks. The sliding support plates on the tracks facilitate transfer and storage when retracted, and provide optimized support when extended. While the support seats are telescopic, the transfer wheels on them are mounted on the tracks and restricted vertically, thus the entire track section serves not only as a guiding slide but also as a fixed foundation. The lifting process is completed by adjusting the position of the upper boom within a wide range using the first and second hydraulic rods.

Description

Technical Field

[0001] This utility model relates to the field of crane structures, and in particular to a construction crane that is easy to operate. Background Technology

[0002] Cranes, as a widely used type of mechanical equipment, come in many varieties, encompassing large, medium, and small cranes, as well as portable cranes. These cranes are not only used in large-scale projects, efficiently lifting and transferring various objects over large areas—for example, in high-rise building construction—to meet the needs of transporting various building materials and ensure construction progress and efficiency; cranes are also suitable for use in smaller environments such as warehouses and workshops, where they can accurately and stably transfer and install heavy components, greatly improving work efficiency and safety.

[0003] However, despite the indispensable role of mini cranes in many fields, they still have some issues that urgently need improvement. For example, the size and weight of existing mini cranes are still relatively large, which limits their portability and flexibility to some extent, causing considerable inconvenience to users in actual use. In addition, operating mini cranes during the pushing process is also quite difficult, requiring considerable physical strength, and the pushing trajectory and positioning accuracy are often not ideal. This undoubtedly increases the difficulty and risk of the operation, affecting the overall efficiency and accuracy of lifting operations. Utility Model Content

[0004] The main purpose of this utility model is to provide a construction crane that is easy to operate, in order to solve the problem that the existing small cranes are still relatively large in size and weight, which limits their portability and flexibility, and the pushing process is also relatively difficult.

[0005] To achieve the above objectives, this utility model provides a conveniently operated construction crane, comprising: The track section includes multiple length-adjustable middle components and two length-adjustable tracks. The multiple middle components connect the two tracks in parallel, and a support plate is slidably disposed at each end of the length direction of each middle component. The base includes a mounting base and two telescopic support bases. The mounting base connects one end of the two support bases along their length. Each end of the support base along its length is provided with a transfer wheel. The two transfer wheels on the support base are mounted on two tracks and are restricted in the vertical direction. The support column includes a support column connected to the mounting base and a first hydraulic rod hinged at the middle of the height of the support column; The upper arm includes an upper rear arm, an upper forearm, and a second hydraulic rod. The upper rear arm is hinged to the top of the support column. The free end of the first hydraulic rod is hinged to the middle of the upper rear arm in the length direction. The upper forearm is telescopically mounted on the upper rear arm. The upper rear arm is provided with a second hydraulic rod that drives the upper forearm to telescopically extend and retract. A hydraulic station is installed on the base or the support column. The hydraulic station includes a hydraulic source and a reversing valve. The hydraulic source controls the first hydraulic rod and the second hydraulic rod through the reversing valve. The boom section is fixed to the free end of the upper forearm, and its position in the height direction is adjustable.

[0006] Furthermore, the mounting base includes a base strip and a rotating seat connected to the upper part of the base strip, and the support column is rotatably disposed on the rotating seat on a horizontal plane.

[0007] Furthermore, the mounting angle of the support column on the rotating base is adjustable.

[0008] Furthermore, the support column and the rotating seat are connected by a flange.

[0009] Furthermore, the base portion also includes an auxiliary connecting rod, which connects the other ends of the two support seats along their length.

[0010] Furthermore, the mounting base is a telescopic structure.

[0011] Furthermore, the boom section includes a hook rod, a connecting cable, and a hook connected in sequence, with the hook rod connected to the free end of the upper forearm.

[0012] Furthermore, the middle component is in the shape of a square tube, and the support plate is sleeved inside the middle component and slides in the length direction.

[0013] Furthermore, the free end of the upper forearm is provided with a mounting base, and the mounting base is provided with a plurality of mounting holes spaced apart in the vertical direction. The upper end of the boom portion forms a detachable fit with the mounting holes.

[0014] Furthermore, the mounting bracket extends upward from the free end of the upper forearm.

[0015] The construction crane provided by this utility model is easy to operate. It can adapt to the needs of material transfer by adjusting the length and distance of two tracks. The support plate that is slidably set on the track is convenient for transfer and storage when it is retracted, and provides a support optimization effect when it is pulled out. While the support base can extend and retract, the transfer wheel on it is installed on the track and restricted in the vertical direction. Thus, the entire track can not only guide the sliding, but also serve as a fixed foundation. The working upper arm can be moved within a large range by the first hydraulic rod and the second hydraulic rod, thereby completing the lifting process. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the use of a construction crane with convenient operation according to an embodiment of the present invention (first rotation angle of the support column). Figure 2 This is a schematic diagram of the use of a convenient construction crane according to an embodiment of the present invention (track section is hidden). Figure 3 This is a schematic diagram of the installation of the base portion on the track portion in a construction crane that is easy to operate according to an embodiment of this utility model; Figure 4 This is a schematic diagram of the installation of the support column and upper arm in a construction crane that is easy to operate according to an embodiment of this utility model; Figure 5 This is a schematic diagram of the use of a construction crane with convenient operation according to an embodiment of the present invention (second rotation angle of the support column). Detailed Implementation

[0017] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0018] Those skilled in the art will understand that, unless specifically stated otherwise, the singular forms “a,” “an,” “the,” “the,” “the,” and “the” used herein may also include the plural forms. It should be further understood that the term “comprising” as used in this specification means the presence of the stated features, integers, steps, operations, elements, units, modules, and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, units, modules, components, and / or groups thereof. It should be understood that when we say an element is “connected” or “coupled” to another element, it can be directly connected or coupled to the other element, or there may be intermediate elements. Furthermore, “connected” or “coupled” as used herein can include wireless connection or wireless coupling. The term “and / or” as used herein includes all or any units and all combinations of one or more associated listed items.

[0019] It will be understood by those skilled in the art that, unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. It should also be understood that terms such as those defined in general dictionaries should be understood to have the same meaning as in the context of the prior art, and should not be interpreted in an idealized or overly formal sense unless specifically defined as herein.

[0020] Reference Figures 1 to 5 In one embodiment of this utility model, a convenient construction crane includes: The track section 100 includes multiple length-adjustable middle parts 120 and two length-adjustable tracks 110. The multiple middle parts 120 connect the two tracks 110 in parallel. A support plate 130 is slidably disposed at each end of the length direction of the middle parts 120. The base portion 200 includes a mounting base 210 and two telescopic support bases 220. The mounting base 210 connects one end of the two support bases 220 in the length direction. Each end of the support base 220 in the length direction is provided with a transfer wheel 230. The two transfer wheels 230 on the support base 220 are mounted on two tracks 110 and are restricted in the vertical direction. The support column includes a support column 310 connected to the mounting base 210 and a first hydraulic rod 320 hinged to the middle of the height of the support column 310; The upper arm 400 includes an upper rear arm 410, an upper forearm 420, and a second hydraulic rod 430. The upper rear arm 410 is hinged to the top of the support column 310. The free end of the first hydraulic rod 320 is hinged to the middle of the upper rear arm 410 in the length direction. The upper forearm 420 is telescopically mounted on the upper rear arm 410. The upper rear arm 410 is provided with a second hydraulic rod 430 for driving the upper forearm 420 to telescopically extend and retract. A hydraulic station is installed on the base 200 or the support column 310. The hydraulic station includes a hydraulic source and a reversing valve. The hydraulic source controls the first hydraulic rod 320 and the second hydraulic rod 430 through the reversing valve. The boom section 500 is fixed to the free end of the upper forearm 420, and its position in the height direction is adjustable.

[0021] In the existing technology, the size and weight of small cranes are still relatively large, which to some extent limits their portability and flexibility; the operation during the pushing process is also relatively difficult, not only requiring a lot of physical strength, but also the pushing trajectory and positioning accuracy are often difficult to achieve ideal conditions, which undoubtedly increases the difficulty and risk of the operation and affects the overall efficiency and accuracy of the lifting operation.

[0022] The convenient construction crane provided by this utility model includes a track section 100 comprising multiple length-adjustable middle components 120 and two length-adjustable rails 110. The length adjustment of the middle components 120 is preferably telescopic; for example, the middle component 120 includes two interlocking pipes, and the length is changed by adjusting the degree of fit. The length adjustment of the rails 110 can be varied, such as including multiple sub-rails connected by transition pieces, or including multiple sub-rails whose fit can be changed and locked by a bolt structure. The multiple middle components 120 connect the two rails 110 in parallel, and the connection between the middle components 120 and the rails 110 can be by bolts, etc. A support plate 130 is slidably provided at each end of the length direction of the middle component 120. The support plates 130 are conveniently transferred and stored when retracted, and provide excellent support when extended to a certain extent.

[0023] The base portion 200 includes a mounting base 210 and two telescopic support bases 220. For example, the support base 220 includes two interlocking tubular components, whose length can be adjusted by varying the degree of fit. By making the support base 220 telescopic, it matches the change in distance between the two tracks 110. The mounting base 210 connects one end of the two support bases 220 in the longitudinal direction, and each end of the support base 220 in the longitudinal direction is provided with a transfer wheel 230. The two transfer wheels 230 on the support base 220 are mounted on the two tracks 110 and are restricted in the vertical direction, so that the entire track portion 100 can not only guide the sliding but also serve as a fixed foundation. The restriction of the transfer wheels 230 by the tracks 110 can be achieved by a pressure plate, in which case the transfer wheels 230 can only enter from the end face of the track 110.

[0024] The support column includes a support column 310 connected to the mounting base 210 and a first hydraulic rod 320 hinged at the middle of the height of the support column 310.

[0025] The upper arm 400 includes an upper rear arm 410, an upper forearm 420, and a second hydraulic rod 430. The upper rear arm 410 is hinged to the top of the support column 310. The free end of the first hydraulic rod 320 is hinged to the middle of the upper rear arm 410 along its length. The upper arm 400 can swing, achieving changes in height and horizontal position, through the operation of the first hydraulic rod 320. The upper forearm 420 is telescopically mounted on the upper rear arm 410, and the upper rear arm 410 is equipped with the second hydraulic rod 430 that drives the telescopic movement of the upper forearm 420. The horizontal position change is achieved through the operation of the second hydraulic rod 430.

[0026] The hydraulic station is mounted on the base 200 or the support column 310. The hydraulic station includes a hydraulic power source and a directional valve. The hydraulic power source controls the first hydraulic rod 320 and the second hydraulic rod 430 via the directional valve. Specifically, the forms of the hydraulic power source and the directional valve are selected according to existing technology and will not be emphasized here.

[0027] The position of the boom 500 fixed to the free end of the upper forearm 420 in the height direction is adjustable.

[0028] During operation, the track section 100 is assembled (the layout of the track section 100 needs to meet the path requirements for material transfer). The length of the track 110 is adjusted to adapt to the material transfer needs, and the distance between two tracks 110 is adjusted to adapt to the material pile (e.g., the material pile is between two tracks 110). The support plate 130 on the track section 100 is removed to provide support optimization. The base section 200 is installed and fitted with the track section 100. The support column, upper arm section 400, hydraulic station, and boom section 500 are installed on the base section 200. Through the operation of the first hydraulic rod 320 and the second hydraulic rod 430, the position of the upper arm section 400 can be adjusted within a large range, thereby completing the lifting process.

[0029] In summary, the length and distance of the two tracks 110 are adjusted to meet the needs of material transfer; the support plate 130 slidably mounted on the track section 100 facilitates transfer and storage when retracted, and provides support optimization when extended; the support 220 is retractable, and the transfer wheel 230 on it is installed on the track 110 and restricted in the vertical direction, so the entire track section 100 can not only guide the sliding but also serve as a fixed foundation; the working upper arm 400 can be moved within a large range by the first hydraulic rod 320 and the second hydraulic rod 430, thereby completing the lifting process.

[0030] Reference Figures 1 to 5 In one embodiment, the mounting base 210 includes a base strip and a rotating base 211 connected to the upper part of the base strip, and the support column 310 is rotatably disposed on the rotating base 211 on a horizontal plane.

[0031] In this embodiment, the support column 310 is configured to be rotatable on the mounting base 210, for example, the rotating base 211 is a plane bearing, which provides greater flexibility of use through the rotation of the support column 310.

[0032] Reference Figures 1 to 5 In one embodiment, the mounting angle of the support column 310 on the rotating seat 211 is adjustable.

[0033] In this embodiment, the angle between the support column 310 and the horizontal plane is adjustable. By adjusting the angle of the support column 310, the initial height of the upper arm 400 can be adjusted, avoiding the need to rely entirely on the adjustment of the first hydraulic rod 320 to achieve the working height adaptation. The tilt angle adjustment method of the support column 310 can be varied, which will be described in subsequent embodiments.

[0034] Reference Figures 1 to 5 In one embodiment, the support column 310 and the rotating seat 211 are connected by a flange.

[0035] In this embodiment, a flange is provided at the end of the support column 310, and a vertically arranged flange is provided on the rotating seat 211. The two flanges are connected by multiple bolt assemblies, and the relative angle between the two flanges can adjust the support tilt angle of the support column 310.

[0036] Reference Figure 1 In one embodiment, the base portion 200 further includes an auxiliary connecting rod 240, which connects the other ends of the two support seats 220 in the length direction.

[0037] In this embodiment, the structural strength of the base portion 200 is improved by the introduction of the auxiliary connecting rod 240. In some specific embodiments, the auxiliary connecting rod 240 can also be telescopically extended to adapt to the distance adjustment between the support seats 220.

[0038] In one embodiment, the mounting base 210 is a telescopic structure.

[0039] In this embodiment, the mounting base 210 is configured as a telescopic structure, thereby making the distance between the two support bases 220 adjustable and improving the overall flexibility of the construction crane. The length adjustment method of the mounting base 210 can be varied, such as including multiple threaded sub-rods, where the length adjustment is achieved by changing the degree of thread engagement; or including two sub-rods, where the degree of engagement between the two sub-rods can be changed, and locking is achieved through a bolt structure.

[0040] In one embodiment, the boom portion 500 includes a hook rod, a connecting cable, and a hook connected in sequence, the hook rod being connected to the free end of the upper forearm 420.

[0041] In this embodiment, the boom 500 is configured into three parts: a connecting rod for connecting to the upper forearm 420; a hook for attaching external objects; and a connecting cable for flexible connection, providing a basis for adjusting the position of the hook. The connecting cable can be made of metal, natural fiber weave, or synthetic fiber weave, etc.

[0042] In one embodiment, the middle component 120 is a square tube, and the support plate 130 is sleeved inside the middle component 120 and slides in the length direction.

[0043] In this embodiment, a structural type of support plate 130 and middle component 120 is provided. The middle component 120 is a square tube, thus possessing adequate structural strength, and its material can be high-strength alloy steel. The support plate 130 slides within the middle component 120, so that when the support plate 130 slides out, it can form an integral structural support. The support plate 130 can be a solid or a square tube. The support plate 130 and the middle component 120 can be fixed by friction or connected by bolt-like fasteners.

[0044] Reference Figures 4 to 5 In one embodiment, the free end of the upper forearm 420 is provided with a mounting base 421, and the mounting base 421 is provided with a plurality of mounting holes 422 at intervals in the vertical direction. The upper end of the boom portion 500 forms a detachable engagement with the mounting holes 422.

[0045] In this embodiment, a method for adjusting the vertical position of the boom 500 is provided, which has the advantages of being simple and reliable.

[0046] Reference Figure 5 In one embodiment, the hook 421 extends upward from the free end of the upper forearm 420.

[0047] In this embodiment, the position of the mounting bracket 421 is raised, thereby providing more space for the boom section 500 to work, and increasing the height at which the construction can be suspended.

[0048] In summary, the convenient construction crane provided by this utility model adapts to the needs of material transfer through the length and distance adjustment of the two tracks 110; the support plate 130 slidably installed on the track section 100 facilitates transfer and storage when retracted, and provides support optimization when extended; the support base 220 can extend and retract, and the transfer wheel 230 on it is installed on the track 110 and restricted in the vertical direction, so the entire track section 100 can not only guide the sliding but also serve as a fixed foundation; the working upper arm 400 can be moved within a large range by the first hydraulic rod 320 and the second hydraulic rod 430, thereby completing the lifting process.

[0049] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural or procedural transformations made based on the contents of the present utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present utility model.

Claims

1. A construction crane that is easy to operate, characterized in that, include: The track section (100) includes multiple length-adjustable middle parts (120) and two length-adjustable tracks (110). The multiple middle parts (120) connect the two tracks (110) in parallel. Each of the two ends of the middle parts (120) in the length direction is slidably provided with a support plate (130). The base (200) includes a mounting base (210) and two telescopic support bases (220). The mounting base (210) connects one end of the two support bases (220) in the length direction. Each end of the support base (220) in the length direction is provided with a transfer wheel (230). The two transfer wheels (230) on the support base (220) are mounted on two tracks (110) and are restricted in the vertical direction. The support column includes a support column (310) connected to the mounting base (210) and a first hydraulic rod (320) hinged at the middle of the height of the support column (310). The upper arm (400) includes an upper rear arm (410), an upper forearm (420), and a second hydraulic rod (430). The upper rear arm (410) is hinged to the top of the support column (310). The free end of the first hydraulic rod (320) is hinged to the middle of the upper rear arm (410) in the length direction. The upper forearm (420) is telescopically mounted on the upper rear arm (410). The upper rear arm (410) is provided with a second hydraulic rod (430) that drives the upper forearm (420) to telescopically extend and retract. A hydraulic station is installed on the base (200) or the support column (310). The hydraulic station includes a hydraulic source and a reversing valve. The hydraulic source controls the first hydraulic rod (320) and the second hydraulic rod (430) through the reversing valve. The boom section (500) is fixed to the free end of the upper forearm (420) and its position in the height direction is adjustable.

2. The convenient-to-operate construction crane according to claim 1, characterized in that, The mounting base (210) includes a base strip and a rotating seat (211) connected to the upper part of the base strip, and the support column (310) is rotatably mounted on the rotating seat (211) on a horizontal plane.

3. The convenient-to-operate construction crane according to claim 2, characterized in that, The mounting angle of the support column (310) on the rotating seat (211) is adjustable.

4. The convenient-to-operate construction crane according to claim 3, characterized in that, The support column (310) and the rotating seat (211) are connected by a flange.

5. The convenient-to-operate construction crane according to any one of claims 1 to 4, characterized in that, The base portion (200) also includes an auxiliary connecting rod (240) that connects the other ends of the two support seats (220) in the length direction.

6. The convenient-to-operate construction crane according to any one of claims 1 to 4, characterized in that, The mounting base (210) is a telescopic structure.

7. The conveniently operated construction crane according to any one of claims 1 to 4, characterized in that, The boom section (500) includes a hook rod, a connecting cable and a hook connected in sequence, the hook rod being connected to the free end of the upper forearm (420).

8. The conveniently operated construction crane according to any one of claims 1 to 4, characterized in that, The middle component (120) is in the shape of a square tube, and the support plate (130) is sleeved inside the middle component (120) and slides in the length direction.

9. The conveniently operated construction crane according to any one of claims 1 to 4, characterized in that, The free end of the upper forearm (420) is provided with a mounting base (421), and the mounting base (421) is provided with a plurality of mounting holes (422) spaced apart in the vertical direction. The upper end of the boom (500) forms a detachable fit with the mounting holes (422).

10. The convenient-to-operate construction crane according to claim 9, characterized in that, The mounting bracket (421) extends upward from the free end of the upper forearm (420).

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