Adjustable crane

Abstract

The utility model discloses an adjustable crane and relates to the technical field of cranes. The adjustable crane comprises two movable frames, a top frame arranged on the top faces of the two movable frames, a mechanical driving head arranged on the bottom face of the top frame in a sliding mode and a lifting hook arranged on the lower portion of the mechanical driving head, and one side of each movable frame is provided with a guide mechanism. According to the device, the two groups of guide frames are arranged at the crane, so that the guide frames are in contact with the two sides of a lifted object, the moving path of the object in the lifting process is guided and limited, the object is prevented from shaking in the lifting process, and the guide frames are combined with universal wheels, dampers and springs for use; smooth movement of the guide frame in the position changing process can be achieved, and the safety of the surrounding environment of the crane is effectively improved on the whole.

Description

Technical Field

[0001] This utility model relates to the field of crane technology, specifically to an adjustable crane. Background Technology

[0002] In construction, adjustable cranes can be used to lift building materials such as cement, bricks, and steel, as well as install precast components such as concrete beams, columns, and floor slabs. By adjusting the length of the released steel cables, the crane can meet the lifting requirements of building materials at different heights, effectively improving construction efficiency and quality.

[0003] For gantry cranes, the building materials need to be secured with ropes first, then the hook is lowered to connect with the ropes, and then the hook is raised to lift the building materials. In this case, the parts of the building materials that are not in contact with the hook are suspended inside the crane. Under the influence of multiple factors, such as the fulcrum of the building materials themselves and the influence of wind in the external environment, the building materials will sway during the lifting process, resulting in poor safety of the environment around the crane when the building materials are lifted, and making the lifting operation unstable. To address the shortcomings of existing technology, we propose an adjustable crane to solve the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an adjustable crane, which solves the problem that when the parts of the building materials that are not in contact with the hook are suspended inside the crane, the building materials will sway during the lifting process due to various factors, resulting in poor safety of the surrounding environment when the building materials are lifted.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an adjustable crane, comprising two sets of movable frames, a top frame disposed on the top surface of the two sets of movable frames, a mechanical drive head slidably disposed on the bottom surface of the top frame, and a hook disposed below the mechanical drive head. A guide mechanism is provided on one side of each of the two sets of movable frames, and the guide mechanism includes:

[0006] The first guide frame and the second guide frame are both provided with guide sleeves on their top surfaces, and the first guide frame and the second guide frame are respectively located on one side of the two sets of movable frames;

[0007] A bidirectional threaded rod is rotatably mounted on the top of the top frame. The threaded connection between the bidirectional threaded rod and the guide sleeve allows for synchronous changes in the guiding positions of the first guide frame and the second guide frame.

[0008] The drive motor is mounted on the top surface of the top frame and is connected to one end of the bidirectional threaded rod.

[0009] The mobile assembly is arranged on the bottom surface of the first guide frame and the second guide frame, and comprises universal wheels for assisting the smooth movement of the first guide frame and the second guide frame, dampers and springs for shock absorption protection of the universal wheels.

[0010] Preferably, the top surface of the top frame is fixedly provided with a fixed frame, one end of the bidirectional threaded rod is rotatably arranged in the fixed frame, and a limiting hole is formed in one side of the guide sleeve and used for positioning connection between the guide sleeve and the fixed frame.

[0011] Preferably, the first guide frame and the second guide frame are rotatably provided with a plurality of rollers on the side close to the hook.

[0012] Preferably, the first guide frame and the second guide frame are provided with an auxiliary assembly on the side away from the hook, and the auxiliary assembly is used for limiting the movement track of the first guide frame and the second guide frame.

[0013] Preferably, the auxiliary assembly comprises a connecting seat, a support rod rotatably arranged between the connecting seat, and an auxiliary rod slidably arranged on one side of the support rod, and the other end of a plurality of auxiliary rods is rotatably connected with one side of the first guide frame and the second guide frame.

[0014] Preferably, a sliding groove is formed in one side of the support rod, a sliding block is limitedly arranged in the sliding groove, and one end of the auxiliary rod is rotatably connected with the inner surface of the sliding block.

[0015] Preferably, the mobile assembly further comprises a groove formed in the bottom surface of the first guide frame and the second guide frame, and a limiting seat slidably arranged in the groove, the universal wheel is arranged on the bottom surface of the limiting seat, the damper is arranged between the top surface of the limiting seat and the inner top surface of the groove, and the spring is arranged on the outer wall of the damper.

[0016] The utility model discloses a kind of adjustable cranes, and it has the beneficial effects as follows: the crane of this kind, by being provided with two groups of guide frames at crane, so that the both sides of guide frame and hoisting article contact, and then the movement path in the process of hoisting article is guided and limited, avoid article to shake in the process of hoisting, and guide frame is used in combination with universal wheel, damper and spring, can realize the smooth movement in the process of guide frame position change, overall effectively improve the security of crane ambient environment. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creating any creative labor.

[0018] Fig. 1 It is the whole structure schematic view of the utility model;

[0019] Fig. 2 It is the top frame and the two-way threaded rod connecting structure schematic view of the utility model;

[0020] Fig. 3 It is the guide frame and the two-way threaded rod connecting structure schematic view of the utility model;

[0021] Fig. 4 It is the guide frame and the support rod connecting structure schematic view of the utility model;

[0022] Fig. 5 It is the support rod and the auxiliary rod connecting structure plan view of the utility model;

[0023] Fig. 6 It is the guide frame and the universal wheel connecting structure plan view of the utility model.

[0024] In the drawing: 1, mobile frame;2, top frame;3, mechanical drive head;31, lifting hook;4, guide mechanism;41, first guide frame;42, second guide frame;43, guide sleeve;431, limit hole;44, two-way threaded rod;45, drive motor;46, fixed frame;47, roller;5, auxiliary assembly;51, connecting seat;52, support rod;53, auxiliary rod;54, sliding slot;541, sliding block;6, mobile assembly;61, recess;62, limit seat;63, universal wheel;64, damper;65, spring. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantage of the embodiments of the utility model more clear, the technical scheme in the embodiments of the utility model is described clearly and completely, obviously, the described embodiments are a part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor belong to the protection scope of the utility model.

[0026] The embodiment of the application provides a crane, which solves the problem that the parts of the building materials not in contact with the lifting hook are suspended in the crane, under the influence of multiple factors, the building materials will shake in the lifting process, resulting in poor safety of the environment around the crane when the building materials are lifted, and realizes the guiding and limiting of the building materials and other articles in the lifting process.

[0027] In order to better understand the above technical scheme, the above technical scheme will be described in detail in combination with the drawings of the specification and specific embodiments.

[0028] The utility model discloses an adjustable crane.

[0029] According to the drawings Figs. 1-6 As shown in the drawings, including two groups of mobile frame 1, setting at two groups of mobile frame 1 top surface top frame 2, sliding setting in the mechanical drive head 3 of top frame 2 bottom surface and setting in the hook 31 of mechanical drive head 3 lower part, two groups of mobile frame 1, top frame 2, mechanical drive head 3 and hook 31 etc. component group crane, when hoisting the article, first through the rope to the article is bound, then mechanical drive head 3 controls its place wire to open, make under the auxiliary of wire, hook 31 moves down, when hook 31 is connected with the rope that is bound in the article outside, start mechanical drive head 3 again, make its place wire reeling, in turn make the article be hoisted to the required height under the auxiliary of hook 31, hoist height can be adjusted according to demand correspondingly, in turn shift the hoisted article to other positions.

[0030] Refer to the drawings Figs. 1-3 Two groups of mobile frame 1 one side are provided with guide mechanism 4, in the process of hoisting the article, through the guide mechanism 4 of setting, the article both sides are positioned and guided, make the article hoisting process not appear the shaking of large amplitude, make crane hoisting process be relatively stable, guide mechanism 4 includes first guide frame 41 and second guide frame 42, first guide frame 41 and second guide frame 42 top surface are all fixedly provided with guide sleeve 43, and first guide frame 41 and second guide frame 42 are set at one side of two groups of mobile frame 1 respectively, bidirectional screw rod 44 rotationally arranged at the top of top frame 2, the guide position of first guide frame 41 and second guide frame 42 is changed synchronously through the threaded connection between bidirectional screw rod 44 and guide sleeve 43, drive motor 45 is arranged on the top surface of top frame 2, and one end of drive motor 45 is connected with bidirectional screw rod 44, the top surface of top frame 2 is fixedly provided with fixed frame 46, one end of bidirectional screw rod 44 is rotationally arranged in the inside of fixed frame 46, one side of guide sleeve 43 is provided with limiting hole 431 for the positioning connection between guide sleeve 43 and fixed frame 46, two groups of thread grooves are formed in the outer wall of bidirectional screw rod 44, and the groove directions of the two groups of thread grooves are opposite, two groups of guide sleeves 43 are screw-connected with the thread grooves formed in the outer wall of bidirectional screw rod 44, so that when bidirectional screw rod 44 rotates under the control of drive motor 45, the two groups of guide sleeves 43 screw-connected outside bidirectional screw rod 44 move to both sides at the same time or move to the middle at the same time, and then first guide frame 41 and second guide frame 42 move to both sides at the same time or move to the middle at the same time, so as to adjust the guide distance of first guide frame 41 and second guide frame 42, and the side close to hook 31 of first guide frame 41 and second guide frame 42 is rotationally provided with roller 47, the smoothness when first guide frame 41 and second guide frame 42 contact the article can be increased by the roller 47.

[0031] Refer to the drawings Figs. 3-5 The first guide frame 41 and the second guide frame 42 are provided with an auxiliary assembly 5 away from one side of the hook 31, the auxiliary assembly 5 is used for limiting the moving track of the first guide frame 41 and the second guide frame 42, that is, increasing the stability of the first guide frame 41 and the second guide frame 42 when moving relative to the moving frame 1, the auxiliary assembly 5 comprises a connecting seat 51, a group of connecting seats 51 are arranged on one side of the first guide frame 41 and the second guide frame 42 and the two groups of moving frames 1, a support rod 52 is hingedly arranged between the connecting seats 51, and an auxiliary rod 53 is slidingly arranged on one side of the support rod 52, the other end of a plurality of auxiliary rods 53 is respectively hinged to one side of the first guide frame 41 and the second guide frame 42, and a sliding groove 54 is formed in one side of the support rod 52, a sliding block 541 is limited to slide in the sliding groove 54, and one end of the auxiliary rod 53 is hinged to the inner surface of the sliding block 541.

[0032] Refer to the drawings Fig. 3 and the drawings Fig. 6 The moving assembly 6 is arranged on the bottom surface of the first guide frame 41 and the second guide frame 42, the moving assembly 6 comprises universal wheels 63 for assisting the smooth movement of the first guide frame 41 and the second guide frame 42, dampers 64 and springs 65 for shock absorption protection of the universal wheels 63, the moving assembly 6 further comprises a recess 61 formed in the bottom surface of the first guide frame 41 and the second guide frame 42 and a limiting seat 62 slidingly arranged in the recess 61, the universal wheels 63 are arranged on the bottom surface of the limiting seat 62, the dampers 64 are arranged between the top surface of the limiting seat 62 and the inner top surface of the recess 61, and the springs 65 are sleeved on the outer wall of the dampers 64, the first guide frame 41 and the second guide frame 42 are conveniently moved along the ground and other positions through the universal wheels 63 arranged on the bottom surface thereof, and for uneven ground, the connecting stability between the first guide frame 41 and the second guide frame 42 and the crane can be increased through the arranged springs 65 and dampers 64.

[0033] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above. It should be understood by those skilled in the art that the utility model is not limited by the above-mentioned embodiments, the above-mentioned embodiments and the description in the specification are only for illustrating the principle of the utility model, various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The protection scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. An adjustable crane, comprising two groups of moving frames (1), a top frame (2) arranged on the top surface of the two groups of moving frames (1), a mechanical driving head (3) slidingly arranged on the bottom surface of the top frame (2), and a hook (31) arranged on the lower part of the mechanical driving head (3), characterized in that, Both sides of the mobile frame (1) are provided with a guide mechanism (4), the guide mechanism (4) comprises: The top surface of the first guide frame (41) and the second guide frame (42) is provided with a guide sleeve (43), and the first guide frame (41) and the second guide frame (42) are arranged on the side of the two groups of mobile frames (1) respectively; The bidirectional threaded rod (44) is rotatably arranged on the top of the top frame (2), and the guide positions of the first guide frame (41) and the second guide frame (42) are changed synchronously through the threaded connection between the bidirectional threaded rod (44) and the guide sleeve (43); The driving motor (45) is arranged on the top surface of the top frame (2), and the driving motor (45) is connected with one end of the bidirectional threaded rod (44); The moving assembly (6) is arranged on the bottom surface of the first guide frame (41) and the second guide frame (42), the moving assembly (6) comprises universal wheels (63) for assisting the smooth movement of the first guide frame (41) and the second guide frame (42), and dampers (64) and springs (65) for shock absorption protection of the universal wheels (63).

2. An adjustable crane according to claim 1, characterized in that: The top surface of the top frame (2) is fixedly provided with a fixed frame (46), one end of the bidirectional threaded rod (44) is rotatably arranged in the fixed frame (46), and the side of the guide sleeve (43) is provided with a limiting hole (431) for positioning connection between the guide sleeve (43) and the fixed frame (46).

3. An adjustable crane according to claim 2, characterized in that: The side of the first guide frame (41) and the second guide frame (42) close to the hook (31) is rotatably provided with a roller (47).

4. An adjustable crane as claimed in claim 1, characterized in that: The side of the first guide frame (41) and the second guide frame (42) away from the hook (31) is provided with an auxiliary assembly (5), and the auxiliary assembly (5) is used for limiting the movement track of the first guide frame (41) and the second guide frame (42).

5. An adjustable crane according to claim 4, characterized in that: The auxiliary assembly (5) comprises a connecting seat (51), a support rod (52) rotatably arranged between the connecting seat (51), and an auxiliary rod (53) slidably arranged on one side of the support rod (52), and the other end of a plurality of auxiliary rods (53) is rotatably connected with one side of the first guide frame (41) and the second guide frame (42) respectively.

6. An adjustable crane according to claim 5, characterised in that: The side of the support rod (52) is provided with a sliding groove (54), the inner surface of the sliding groove (54) is limitedly slidably provided with a sliding block (541), and one end of the auxiliary rod (53) is rotatably connected with the inner surface of the sliding block (541).

7. An adjustable crane as claimed in claim 1, characterized in that: The moving assembly (6) further comprises a groove (61) formed in the bottom surface of the first guide frame (41) and the second guide frame (42), and a limiting seat (62) slidably arranged in the groove (61), the universal wheel (63) is arranged on the bottom surface of the limiting seat (62), the damper (64) is arranged between the top surface of the limiting seat (62) and the inner top surface of the groove (61), and the spring (65) is sleeved on the outer wall of the damper (64).

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