A small crane with anti-collision structure

Abstract

The present invention discloses a small crane with an anti-collision structure, which belongs to the technical field of small cranes, and comprises a base and a lifting receiving rod arranged above the base, a load-bearing seat is welded on one side of the top wall of the base, a supporting bottom beam, a supporting top beam and a connecting seat are sequentially connected to the load-bearing seat, and an extension rod is arranged between the connecting seat and the lifting receiving rod; a mounting block is turned over and arranged below the extension rod, a hydraulic push rod is embedded in the mounting block, and a connecting rod is fixedly welded to the telescopic end of the hydraulic push rod, the load-bearing seat is sunken inward along the vertical direction toward one side of the extension rod to form a plurality of slots distributed in a linear array, and the connecting rod is engaged with the slot; a penetration groove is opened on the lifting receiving rod to penetrate the top wall and the bottom wall thereof. The small crane with an anti-collision structure reduces the area occupied by the crane, makes the crane easy to place, and reduces the impact on surrounding facilities.

Description

Technical Field

[0001] The invention belongs to the technical field of small cranes, and in particular relates to a small crane with an anti-collision structure. Background Art

[0002] A small crane is a transport vehicle that combines a small crane and a chassis. It is composed of a lifting arm, a turntable, a frame, and outriggers. The mechanical movement of the small crane is achieved through the actions of the mechanisms such as luffing, telescoping, slewing, and hoisting, and the lifting operation is achieved through the combination of different actions.

[0003] According to the Chinese patent application number 201911229521.3, a small short-distance transport crane, in daily life, large cranes are often seen on construction sites, and these cranes are generally used to transport goods over long distances. When goods need to be transported over short distances, it is inconvenient to use such cranes. Although the above patent solves the inconvenience of transporting goods over short distances, when the crane is not in use, it still occupies a large area, causing inconvenience to surrounding facilities. Summary of the invention

[0004] The object of the present invention is to provide a small crane with an anti-collision structure to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: a small crane with an anti-collision structure, comprising a base and a lifting receiving rod arranged above the base, a load-bearing seat is welded on one side of the top wall of the base, a supporting bottom beam, a supporting top beam and a connecting seat are sequentially connected to the load-bearing seat, and an extension rod is arranged between the connecting seat and the lifting receiving rod;

[0006] A mounting block is turned over and arranged below the extension rod, a hydraulic push rod is embedded in the mounting block, and a connecting rod is fixedly welded to the telescopic end of the hydraulic push rod, and a side of the load-bearing seat facing the extension rod is indented in the vertical direction to form a plurality of slots distributed in a linear array, and the connecting rod is engaged with the slot;

[0007] The lifting receiving rod is provided with a through groove penetrating through the top wall and the bottom wall thereof, an inner sliding seat is slidably arranged in the through groove, and a rope and a hook are sequentially connected below the inner sliding seat;

[0008] Two parallel fixed side plates are welded on both sides of the base, and a turning motor is provided at one end of the two fixed side plates away from the load-bearing seat.

[0009] As a preferred embodiment, the bottom wall of the extension rod is recessed to form a bottom groove, and an angle adjustment motor is welded to the side wall of the extension rod. An inner shaft is rotatably connected in the bottom groove, and a sleeve is fixedly mounted on the inner shaft.

[0010] As a preferred implementation scheme, the top end of the mounting block is welded and fixed to the outer wall of the sleeve, and the output shaft of the angle adjustment motor is coaxially connected to the inner rotating shaft.

[0011] As a preferred implementation scheme, a conveying motor is welded to a side of the lifting receiving rod away from the extension rod, a screw rod is rotatably connected in the penetration groove, and the output shaft of the conveying motor is coaxially connected to the screw rod.

[0012] As a preferred embodiment, the threaded sleeve on the screw rod is provided with an inner sliding seat.

[0013] As a preferred implementation scheme, sliding rods are welded on both sides of the above-mentioned penetration groove, and the two ends of the above-mentioned inner sliding seat are slidably mounted on the two sliding rods respectively.

[0014] As a preferred implementation scheme, a mounting seat is welded to one end of the two fixed side plates away from the load-bearing seat, and the two mounting seats are arranged facing each other, and the two mounting seats are recessed to form a movable groove.

[0015] As a preferred embodiment, an inner support shaft is rotatably connected in a movable groove of one of the above-mentioned mounting seats, a flip motor is welded to the top wall of the mounting seat, and the output shaft of the above-mentioned flip motor is coaxially connected to the inner support shaft.

[0016] As a preferred embodiment, a movable side plate is coaxially sleeved on the outer wall of the inner support shaft, and a limiting plate is fixedly welded in the movable groove of the other mounting seat.

[0017] As a preferred embodiment, a flip block is rotatably connected to the inner side of the connecting seat, and a positioning motor is welded to the outer wall of the connecting seat. The output shaft of the positioning motor is coaxially connected to the flip block, and one end of the extension rod away from the lifting supporting rod extends into the inner side of the connecting seat and is welded to the flip block.

[0018] Technical effects and advantages of this small crane with anti-collision structure:

[0019] The positioning motor drives the extension rod to flip from a horizontal state to a vertical state, and then the flip motor drives the steering shaft to rotate, so as to store and protect the receiving rod, reduce the area occupied by the crane, make the crane easier to place, and reduce the impact on surrounding facilities;

[0020] The installation block is driven to operate by the angle adjustment motor, so that the connecting rod at the end of the installation block is extended into the card slot at the appropriate position, and the inclination angle of the load-bearing connecting rod can be adjusted, so that the load-bearing connecting rod can be transported not only in the horizontal direction but also in the oblique direction, making the crane suitable for different scenes and having a wider range of applications. At the same time, the connecting rod is clamped in the card slot, which also ensures the stability of the lifting connecting rod during operation;

[0021] When the crane is not in use, the movable side panel cooperates with the two fixed side panels to enclose the load-bearing supporting rods for protection. When subjected to external impact, the fixed side panels and the movable side panels play a protective role, reducing the probability of damage to the load-bearing supporting rods caused by external impact. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of one side of the top view of an embodiment of the present invention;

[0023] Figure 2 It is a schematic diagram of the overall structure of an embodiment of the present invention when viewed from an upward angle;

[0024] Figure 3 For the present invention Figure 2 An enlarged view of the embodiment at A;

[0025] Figure 4 A top view of an embodiment of the present invention;

[0026] Figure 5 This is a structural schematic diagram of a lifting support rod according to an embodiment of the present invention;

[0027] Figure 6 This is a schematic structural diagram of a movable side panel according to an embodiment of the present invention;

[0028] Figure 7 It is a schematic diagram of the overall structure of the present invention from the other side of the top view.

[0029] In the figure: 1. base; 2. load-bearing seat; 3. supporting bottom beam; 4. supporting top beam; 5. connecting seat; 6. extension rod; 7. lifting receiving rod; 8. positioning motor; 9. flip block; 10. bottom groove; 11. angle adjustment motor; 12. inner rotating shaft; 13. sleeve; 14. mounting block; 15. hydraulic push rod; 16. connecting rod; 17. slot; 18. conveying motor; 19. penetration slot; 20. screw rod; 21. inner sliding seat; 22. sliding rod; 23. rope; 24. hook; 25. fixed side plate; 26. mounting seat; 27. flip motor; 28. movable side plate; 29. ​​limit plate. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0031] Please refer to Figure 1-Figure 7 The small crane with an anti-collision structure shown in the figure comprises a base 1 and a lifting receiving rod 7 arranged above the base 1 .

[0032] like Figure 1-Figure 3As shown, a load-bearing seat 2 is welded on one side of the top wall of the base 1, and a supporting bottom beam 3, a supporting top beam 4 and a connecting seat 5 are connected to the load-bearing seat 2 in sequence, and the load-bearing seat 2, the supporting bottom beam 3, the supporting top beam 4 and the connecting seat 5 are welded and fixed in sequence, an extension rod 6 is provided between the connecting seat 5 and the lifting receiving rod 7, a bottom groove 10 is formed in the bottom wall of the extension rod 6, an angle adjustment motor 11 is welded to the side wall of the extension rod 6, an inner rotating shaft 12 is rotatably connected in the bottom groove 10, a sleeve 13 is fixedly sleeved on the inner rotating shaft 12, the top end of the mounting block 14 is welded and fixed to the outer wall of the sleeve 13, and the output shaft of the angle adjustment motor 11 passes through the extension rod 6 and is connected to the inner rotating shaft 1 2 is coaxially connected, so that the angle adjustment motor 11 drives the mounting block 14 and the connecting rod 16 below to flip, and at the same time, the position of the connecting rod 16 is controlled by the extension of the hydraulic push rod 15, so that the connecting rod 16 is clamped with the clamping groove 17 at a suitable position to complete the adjustment of the angle of the lifting bearing rod 7. The mounting block 14 is turned below the extension rod 6, and the hydraulic push rod 15 is embedded in the mounting block 14. The connecting rod 16 is fixedly welded at the telescopic end of the hydraulic push rod 15. A plurality of linear array distributed clamping grooves 17 are formed inwardly along the vertical direction on one side of the load-bearing seat 2 facing the extension rod 6, and the connecting rod 16 is clamped with the clamping groove 17;

[0033] like Figure 5 As shown, a through groove 19 penetrating the top and bottom walls of the lifting receiving rod 7 is provided, a conveying motor 18 is welded to the side of the lifting receiving rod 7 away from the extension rod 6, a screw rod 20 is rotatably connected in the through groove 19, the output shaft of the conveying motor 18 passes through the lifting receiving rod 7 and is coaxially connected to the screw rod 20, an inner slide seat 21 is slidably provided in the through groove 19, a rope 23 and a hook 24 are sequentially connected below the inner slide seat 21, an inner slide seat 21 is threadedly sleeved on the screw rod 20, and the two side walls of the inner slide seat 21 are respectively fitted with the two side walls of the through groove 19, so that the inner slide seat 21 can slide smoothly in the through groove 19, and slide rods 22 are welded to both sides of the through groove 19, and the two ends of the inner slide seat 21 are respectively slidably sleeved on the two slide rods 22, thereby ensuring the stability of the inner slide seat 21 when sliding;

[0034] like Figure 1 , Figure 6-Figure 7As shown, two parallel fixed side plates 25 are welded on both sides of the base 1, and mounting seats 26 are welded on the ends of the two fixed side plates 25 away from the load-bearing seat 2, and the two mounting seats 26 are arranged opposite to each other, and the two mounting seats 26 are both recessed to form a movable groove, and the ends of the two fixed side plates 25 away from the load-bearing seat 2 are both turned over and provided with a turning motor 27 that plays a protective role on the lifting bearing rod 7, and an inner support shaft is rotatably connected in the movable groove of one of the mounting seats 26, and a turning motor 27 is welded on the top wall of the mounting seat 26, and the output shaft of the turning motor 27 is coaxially connected to the inner support shaft, and a movable side is coaxially sleeved on the outer wall of the inner support shaft. Plate 28, a limiting plate 29 is fixedly welded in the movable groove of another mounting seat 26, the movable side plate 28 can be fitted with the limiting plate 29, so as to limit the position of the movable side plate 28. At the same time, when an external object collides with the movable side plate 28, the limiting plate 29 can also play a limiting role to prevent the external object from colliding with the lifting receiving rod 7, thereby playing an anti-collision role. A flip block 9 is rotatably connected to the inner side of the connecting seat 5, and a positioning motor 8 is welded to the outer wall of the connecting seat 5. The output shaft of the positioning motor 8 is coaxially connected to the flip block 9, and the end of the extension rod 6 away from the lifting receiving rod 7 extends into the inner side of the connecting seat 5 and is welded to the flip block 9.

[0035] When the small crane with anti-collision structure is used, the positioning motor 8 is first driven to drive the flip block 9 to flip, so that the extension rod 6 and the lifting receiving rod 7 are flipped to a certain angle, and the lifting receiving rod 7 is generally set to a horizontal state. At this time, the angle adjustment motor 11 is driven to drive the inner shaft 12 to rotate, so that the sleeve 13 and the mounting block 14 are flipped to a suitable tilt angle, and the hydraulic push rod 15 is driven to extend, so that the connecting rod 16 is extended and clamped into one of the clamping grooves 17 on the load-bearing seat 2, so that the mounting block 14 and the hydraulic push rod 15 can be used to support the lifting receiving rod 7;

[0036] The goods are hung on the hook 24, and the conveying motor 18 is driven to drive the screw 20 to operate, so that the inner slide seat 21 slides along the two slide bars 22, so that the rope 23 drives the hook 24 to move horizontally, and the goods can be transported horizontally. Of course, if the goods need to be transported at an angle, the positioning motor 8 is operated to adjust the lifting receiving rod 7 to an inclined angle, and then the connecting rod 16 is clamped in a suitable clamping groove 17, so that the lifting receiving rod 7 can be kept stable in the inclined state;

[0037] When the crane is not needed, the hydraulic push rod 15 is retracted to its shortest position, and then the angle adjustment motor 11 is operated to drive the mounting block 14 to flip and store it into the bottom groove 10. Then the positioning motor 8 is operated to drive the extension rod 6 and the lifting receiving rod 7 to flip to a vertical state. At this time, the extension rod 6 and the lifting receiving rod 7 are both located directly above the base 1, which reduces the footprint of the crane, makes the crane easier to place, and reduces the impact on surrounding facilities. Then the flipping motor 27 is operated to drive the inner support shaft to operate, so that the movable side panel 28 is flipped and fits with the limit plate 29. The movable side panel 28 and the two fixed side panels 25 can be used to protect the lifting receiving rod 7 from external force collision.

[0038] The above description is only a preferred specific implementation manner of the invention, but the protection scope of the invention is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes within the technical scope disclosed by the invention according to the technical scheme and inventive concept of the invention, which should be covered by the protection scope of the invention.

Claims

1. A small crane with an anti-collision structure, comprising a base (1) and a lifting support rod (7) arranged above the base (1), characterized in that: A load-bearing seat (2) is welded to one side of the top wall of the base (1); a supporting bottom beam (3), a supporting top beam (4) and a connecting seat (5) are sequentially connected to the load-bearing seat (2); an extension rod (6) is provided between the connecting seat (5) and the lifting support rod (7); A mounting block (14) is disposed below the extension rod (6) in a reverse manner, a hydraulic push rod (15) is embedded in the mounting block (14), and a connecting rod (16) is fixedly welded to the telescopic end of the hydraulic push rod (15), a side surface of the load-bearing seat (2) facing the extension rod (6) is indented in a vertical direction to form a plurality of slots (17) distributed in a linear array, and the connecting rod (16) is engaged with the slot (17); The lifting receiving rod (7) is provided with a through groove (19) penetrating through the top wall and the bottom wall thereof, an inner sliding seat (21) is slidably arranged in the through groove (19), and a rope (23) and a hook (24) are sequentially connected below the inner sliding seat (21); Two parallel fixed side plates (25) are welded on both sides of the base (1), and a flip motor (27) is provided at one end of the two fixed side plates (25) away from the load-bearing seat (2); The bottom wall of the extension rod (6) is recessed to form a bottom groove (10), and an angle adjustment motor (11) is welded to the side wall of the extension rod (6); an inner rotating shaft (12) is rotatably connected in the bottom groove (10), and a sleeve (13) is fixedly sleeved on the inner rotating shaft (12); The top end of the mounting block (14) is welded and fixed to the outer wall of the sleeve (13), and the output shaft of the angle adjustment motor (11) is coaxially connected to the inner rotating shaft (12); A conveying motor (18) is welded to a side of the lifting receiving rod (7) away from the extension rod (6), a screw rod (20) is rotatably connected in the penetration groove (19), and an output shaft of the conveying motor (18) is coaxially connected to the screw rod (20); The threaded sleeve on the screw rod (20) is provided with an inner sliding seat (21); Sliding rods (22) are welded on both sides of the penetration groove (19), and the two ends of the inner sliding seat (21) are respectively slidably sleeved on the two sliding rods (22); A flip block (9) is rotatably connected to the inner side of the connecting seat (5), and a positioning motor (8) is welded to the outer wall of the connecting seat (5). The output shaft of the positioning motor (8) is coaxially connected to the flip block (9), and one end of the extension rod (6) away from the lifting support rod (7) extends into the inner side of the connecting seat (5) and is welded to the flip block (9).

2. A small crane with an anti-collision structure according to claim 1, characterized in that: A mounting seat (26) is welded to one end of the two fixed side plates (25) away from the load-bearing seat (2), and the two mounting seats (26) are arranged facing each other. Both mounting seats (26) are recessed to form a movable groove.

3. A small crane with an anti-collision structure according to claim 2, characterized in that: An inner support shaft is rotatably connected in a movable groove of one of the mounting seats (26), a flip motor (27) is welded to the top wall of the mounting seat (26), and an output shaft of the flip motor (27) is coaxially connected to the inner support shaft.

4. A small crane with an anti-collision structure according to claim 3, characterized in that: A movable side plate (28) is coaxially sleeved on the outer wall of the inner support shaft, and a limiting plate (29) is fixedly welded in a movable groove of the other mounting seat (26).

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