Prefabricated small box girder hoisting mechanism

Abstract

The utility model discloses a prefabricated small box girder hoisting mechanism which comprises a hoisting base body, a hoisting module, a pressing plate and a pressing module, the front end of the hoisting base body is upwards and obliquely connected with a hoisting main rod, the end part of the hoisting main rod is provided with a hoisting roller, the hoisting base body is provided with a rope driving mechanism, and the rope driving mechanism is provided with a telescopic hoisting steel rope; the hoisting module comprises a base and a plurality of hoisting supporting arms, the hoisting supporting arms are arranged on the outer side of the base in a surrounding mode at equal intervals around the center of the base, the base is fixedly connected with a hanging ring, and a plurality of clamping grooves are formed in the upper sides of the hoisting supporting arms; the pressing plate is arranged below the base, and a telescopic rod is arranged between the pressing plate and the base; the pressing module comprises a fixing block and a pressing block. The small prefabricated box girder is prevented from shaking or rotating in the hoisting process, and the damage to a concrete member finished product is avoided.

Description

Technical Field

[0001] The utility model relates to the field of lifting equipment, in particular to a prefabricated small box beam hoisting mechanism. Background Art

[0002] Prefabricated small box girders are widely used in bridge construction projects due to their advantages such as centralized prefabrication, fast construction speed and low environmental impact. Among them, prefabricated small box girders need lifting equipment for lifting in actual transportation, such as the lifting and lifting system for handling equipment disclosed in the utility model with application number CN202220273436.8, which uses steel wire ropes, hooks and lifting mechanisms to lift construction materials. However, this type of equipment is prone to cause the prefabricated small box girders to rotate, shake or vibrate in actual applications, which can easily cause the template to collide with the box girder concrete, causing damage to the finished concrete component. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a prefabricated small box beam hoisting mechanism, which can prevent the prefabricated small box beam from shaking or rotating during the hoisting process, thereby preventing the finished concrete component from being damaged.

[0004] According to the first aspect of the present invention, a prefabricated small box girder lifting mechanism includes a lifting base, a lifting module, a clamping plate and a clamping module. The front end of the lifting base is connected to a lifting main rod at an angle upward. The end of the lifting main rod is provided with a lifting roller. The lifting base is provided with a rope driving mechanism. The rope driving mechanism is provided with a retractable lifting steel rope. The lifting steel rope is wound around the lifting roller. The lifting module includes a base and a plurality of lifting arms. The plurality of lifting arms are equidistantly arranged around the center of the base on the outside of the base and are connected to the lifting roller. The base is coplanar, and a hanging ring is fixedly connected to the center position of the base. The end of the lifting steel rope is fixedly connected to the hanging ring. Along the length direction of the lifting arm, a plurality of slots are arranged on the upper side of the lifting arm, and the plurality of slots are arranged at intervals; a clamping plate is arranged below the base, and a telescopic rod is arranged between the clamping plate and the base; the clamping module includes a fixed block and a pressing block, the fixed block is fixed to the end of the lifting arm, the pressing block and the fixed block are movably connected, the pressing block can be movable, and is erected on the upper side of the lifting arm and closes the slot.

[0005] A prefabricated small box girder lifting mechanism according to an embodiment of the utility model has at least the following beneficial effects: a plurality of lifting arms are used to hang the lifting ropes on the prefabricated small box girder, and a downward pressing plate is used to prevent the prefabricated small box girder from shaking or rotating during the lifting process, thereby preventing damage to the finished concrete component.

[0006] According to some embodiments of the utility model, a first magnet is provided at the end of the pressing block, and a second magnet is provided at the lifting arm. The first magnet and the second magnet are magnetically bonded to each other so that the pressing block is placed on the upper side of the lifting arm.

[0007] According to some embodiments of the present invention, the bottom of the slot is arc-shaped.

[0008] According to some embodiments of the utility model, the upper end of the fixed block protrudes from the upper surface of the lifting arm, and a rotating groove is provided at the upper end of the fixed block. One end of the pressing block is rotatably connected to the rotating groove, and the rotating groove is rotatably connected to a pivotable rotating shaft. The rotating shaft passes through the end of the pressing block and is fixedly connected to the pressing block. One end of the rotating shaft is connected to a micro motor for driving the rotating shaft to rotate.

[0009] According to some embodiments of the utility model, the lifting roller and the end of the lifting main rod are rotatably connected, a groove is provided on the outer side of the lifting roller, the groove is arranged in a ring shape along the outer side of the lifting roller, and the lifting steel rope is embedded in the groove.

[0010] According to some embodiments of the utility model, the end of the lifting main rod is fixedly connected to a limit cover, and the lifting steel rope is located between the limit cover and the lifting roller.

[0011] According to some embodiments of the utility model, the lifting base includes a frame and a rotating plate, the rotating plate is pivotally connected to the surface of the frame, and the lifting main rod is fixedly connected to the side of the frame.

[0012] According to some embodiments of the utility model, a plurality of support rods are further provided on the rotating disk, one end of each support rod is fixedly connected to the rod body of the lifting main rod, and the other end is fixedly connected to the side surface of the rotating disk or the surface of the rotating disk.

[0013] According to some embodiments of the present invention, a plurality of universal wheels are installed at the bottom of the frame.

[0014] According to some embodiments of the utility model, the rope driving mechanism includes a driving motor, a rotating seat and a steel rope winding roller, the driving motor and the rotating seat are fixed on the surface of the lifting base and are arranged opposite to each other, one end of the steel rope winding roller is fixedly connected to the output end of the driving motor, and the other end is rotatably connected to the rotating seat, and one end of the lifting steel rope away from the hanging ring is fixedly connected to the steel rope winding roller.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention is further described below with reference to the accompanying drawings and embodiments, wherein:

[0017] Figure 1 A schematic diagram of a prefabricated small box beam hoisting mechanism according to an embodiment of the utility model;

[0018] Figure 2 for Figure 1 An enlarged view of part A;

[0019] Figure 3 It is a schematic diagram of a rope driving mechanism of a prefabricated small box beam hoisting mechanism according to an embodiment of the utility model;

[0020] Figure 4 It is a schematic diagram of the clamping module of the prefabricated small box beam lifting mechanism according to an embodiment of the utility model.

[0021] 100, hoisting base; 110, hoisting main rod; 111, support rod; 112, limit cover; 113, hoisting roller; 120, hoisting roller; 130, hoisting steel rope; 140, frame; 150, rotating disk;

[0022] 200, hoisting module; 210, base; 220, hoisting arm; 221, slot; 222, second magnet; 230, hanging ring;

[0023] 300, pressing plate; 310, telescopic rod;

[0024] 400, pressing module; 410, fixing block; 411, rotating groove; 412, rotating shaft; 413, micro motor; 420, pressing block; 421, first magnet;

[0025] 500, rope driving mechanism; 510, driving motor; 520, rotating seat; 530, steel rope winding roller; DETAILED DESCRIPTION

[0026] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0027] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0028] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0029] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0030] Reference Figures 1 to 4 The prefabricated small box girder hoisting mechanism of the utility model embodiment includes a hoisting base 100, a hoisting module 200, a pressing plate 300 and a pressing module 400. The front end of the hoisting base 100 is connected to a hoisting main rod 110 in an upward tilted manner. The end of the hoisting main rod 110 is provided with a hoisting roller 113. The hoisting base 100 is provided with a rope driving mechanism 500. The rope driving mechanism 500 is provided with a retractable hoisting steel rope 130. The hoisting steel rope 130 is wound around the hoisting roller 113. The hoisting module 200 includes a base 210 and a plurality of hoisting arms 220. The plurality of hoisting arms 220 are equidistantly arranged around the center of the base 210 on the outside of the base 210 and are connected to the base 210. 10 are coplanar, a hanging ring 230 is fixedly connected to the center position of the base 210, the end of the lifting steel rope 130 is fixedly connected to the hanging ring 230, and along the length direction of the lifting support arm 220, a plurality of slots 221 are arranged on the upper side of the lifting support arm 220, and the plurality of slots 221 are arranged at intervals; a clamping plate 300 is arranged below the base 210, and a telescopic rod 310 is arranged between the clamping plate 300 and the base 210; the clamping module 400 includes a fixed block 410 and a pressing block 420, the fixed block 410 is fixed to the end of the lifting support arm 220, the pressing block 420 and the fixed block 410 are movably connected, the pressing block 420 can move, and is erected on the upper side of the lifting support arm 220, and the slot 221 is closed.

[0031] In actual use, the lifting base 100 is placed on the ground, and the lifting rope at the edge of the prefabricated small box beam is first hung on the lifting support arm 220, and the lifting rope is embedded in the slot 221, and then the pressure block 420 is covered on the upper side of the lifting support arm 220, so that the pressure block 420 cooperates with the slot 221 to press the lifting rope, and then the telescopic rod 310 is driven to extend, so that the clamping plate 300 and the upper surface of the prefabricated small box beam are abutted and the prefabricated small box beam is pressed. After pressing, the lifting steel rope 130 is driven to retract and extend through the rope driving mechanism 500 to pull the prefabricated small box beam up. Specifically, in the above-mentioned assembly structure, the clamping plate 300 presses the prefabricated small box beam and straightens multiple lifting ropes. The multiple lifting ropes form damping with each other, so that the prefabricated small box is stable in shape during lifting, and the prefabricated small box is prevented from rotating.

[0032] In summary, a plurality of hoisting arms 220 are used to hang the hoisting ropes on the prefabricated small box beam, and the downward pressing plate 300 is used to prevent the prefabricated small box beam from shaking or rotating during the hoisting process.

[0033] Preferably, the telescopic rod 310 can be an output rod of a cylinder or an output rod of a hydraulic cylinder, so as to realize the up and down movement of the pressing plate 300 and cooperate to press the prefabricated small box beam.

[0034] Specifically, refer to Figure 2 In order to stably fix the pressing block 420 on the lifting arm 220 in actual use, one end of the pressing block 420 is rotatably connected to the fixing block 410, and the other end of the pressing block 420 is provided with a first magnet 421, and the lifting arm 220 is provided with a second magnet 222. The first magnet 421 and the second magnet 222 are magnetically adhered to each other so that the pressing block 420 is placed on the upper side of the lifting arm 220.

[0035] Preferably, refer to Figure 4 The upper end of the fixed block 410 protrudes from the upper surface of the hanging arm 220, and a rotating groove 411 is provided at the upper end of the fixed block 410. One end of the pressing block 420 is rotatably connected to the rotating groove 411. The rotating groove 411 is rotatably connected to a pivotable rotating shaft 412. The rotating shaft 412 passes through the end of the pressing block 420 and is fixedly connected to the pressing block 420. One end of the rotating shaft 412 is connected to a micro motor 413 for driving the rotating shaft 412 to rotate. The micro motor 413 is used to drive the rotating shaft 412 to rotate. The rotating shaft 412 pivots and drives the fixed block 410 to swing, thereby opening or closing the card slot 221.

[0036] Specifically, in order to match the outer shape of the hanging rope to compress the hanging rope, the bottom of the clamping groove 221 is arc-shaped.

[0037] In some embodiments, the hoisting roller 113 is rotatably connected to the end of the hoisting main rod 110, and a groove is provided on the outer side of the hoisting roller 113. The groove is arranged in a ring shape along the outer side of the hoisting roller 113, and the hoisting steel rope 130 is embedded in the groove. The hoisting steel rope 130 is limited by the groove.

[0038] Preferably, the end of the hoisting main rod 110 is fixedly connected to the limit cover 112, and the hoisting steel rope 130 is located between the limit cover 112 and the hoisting roller 113. It is used to cooperate with the hoisting roller 113 to prevent the hoisting steel rope 130 from falling out.

[0039] In some embodiments, the hoisting base 100 includes a frame 140 and a rotating plate 150, the rotating plate 150 is pivotally connected to the surface of the frame 140, and the hoisting main rod 110 is fixedly connected to the side of the frame 140. The conveying direction is adjusted by the rotatable rotating plate 150. In addition, in order to facilitate the hoisting of pre-installed small boxes in different places, a plurality of universal wheels are installed at the bottom of the frame 140.

[0040] It should be mentioned that in order to improve the support for the lifting main rod 110 and improve its rigidity, a plurality of support rods 111 are also provided on the rotating disk 150, one end of the support rod 111 is fixedly connected to the rod body of the lifting main rod 110, and the other end is fixedly connected to the side of the rotating disk 150, or the surface of the rotating disk 150.

[0041] In some embodiments, reference Figure 3 The rope driving mechanism 500 includes a driving motor 510, a rotating seat 520 and a steel rope winding roller 530. The driving motor 510 and the rotating seat 520 are fixed on the surface of the hoisting base 100 and are arranged opposite to each other. One end of the steel rope winding roller 530 is fixedly connected to the output end of the driving motor 510, and the other end is rotatably connected to the rotating seat 520. The end of the hoisting steel rope 130 away from the hanging ring 230 is fixedly connected to the steel rope winding roller 530. The driving motor 510 drives the steel rope winding roller 530 to rotate, so as to drive the hoisting steel rope 130 to be wound or released.

[0042] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A prefabricated small box beam hoisting mechanism, characterized in that: include: A hoisting base (100) is connected to a hoisting main rod (110) at a front end thereof which is tilted upward, a hoisting roller (113) is arranged at the end of the hoisting main rod (110), the hoisting base (100) is provided with a rope driving mechanism (500), the rope driving mechanism (500) is provided with a retractable hoisting steel rope (130), and the hoisting steel rope (130) is wound around the hoisting roller (113); A hoisting module (200) comprises a base (210) and a plurality of hoisting arms (220), wherein the plurality of hoisting arms (220) are equidistantly arranged around the center of the base (210) on the outside of the base (210) and are coplanar with the base (210), a hanging ring (230) is fixedly connected to the center of the base (210), an end of the hoisting steel rope (130) is fixedly connected to the hanging ring (230), and a plurality of slots (221) are arranged on the upper side of the hoisting arm (220) along the length direction of the hoisting arm (220), and the plurality of slots (221) are arranged at intervals; A pressing plate (300) is arranged below the base (210), and a telescopic rod (310) is arranged between the pressing plate (300) and the base (210); The clamping module (400) comprises a fixed block (410) and a pressing block (420), wherein the fixed block (410) is fixed to the end of the hanging support arm (220), the pressing block (420) and the fixed block (410) are movably connected, and the pressing block (420) is movable and is mounted on the upper side of the hanging support arm (220) and closes the card slot (221).

2. A prefabricated small box beam hoisting mechanism according to claim 1, characterized in that: The end of the pressing block (420) is provided with a first magnet (421), and the lifting arm (220) is provided with a second magnet (222); the first magnet (421) and the second magnet (222) are magnetically attached to each other, so that the pressing block (420) is mounted on the upper side of the lifting arm (220).

3. The prefabricated small box beam hoisting mechanism according to claim 1, characterized in that: The bottom of the slot (221) is arc-shaped.

4. The prefabricated small box beam hoisting mechanism according to claim 1, characterized in that: The upper end of the fixed block (410) protrudes from the upper surface of the lifting arm (220), and a rotating groove (411) is provided at the upper end of the fixed block (410). One end of the pressing block (420) is rotatably connected to the rotating groove (411), and the rotating groove (411) is rotatably connected to a pivotable rotating shaft (412). The rotating shaft (412) passes through the end of the pressing block (420) and is fixedly connected to the pressing block (420). One end of the rotating shaft (412) is connected to a micro motor (413) for driving the rotating shaft (412) to rotate.

5. The prefabricated small box beam hoisting mechanism according to claim 1, characterized in that: The hoisting roller (113) is rotatably connected to the end of the hoisting main rod (110), and a groove is arranged on the outer side of the hoisting roller (113). The groove is arranged in a ring shape along the outer side of the hoisting roller (113), and the hoisting steel rope (130) is embedded in the groove.

6. A prefabricated small box beam hoisting mechanism according to claim 1 or 5, characterized in that: The end of the hoisting main rod (110) is fixedly connected to a limit cover (112), and the hoisting steel rope (130) is located between the limit cover (112) and the hoisting roller (113).

7. The prefabricated small box beam hoisting mechanism according to claim 1, characterized in that: The hoisting base (100) comprises a frame (140) and a rotating disk (150), wherein the rotating disk (150) is pivotally connected to the surface of the frame (140), and the hoisting main rod (110) is fixedly connected to the side of the frame (140).

8. The prefabricated small box beam hoisting mechanism according to claim 7, characterized in that: A plurality of support rods (111) are also provided on the rotating disk (150), one end of each support rod (111) is fixedly connected to the rod body of the hoisting main rod (110), and the other end of each support rod (111) is fixedly connected to the side surface of the rotating disk (150) or the surface of the rotating disk (150).

9. The prefabricated small box beam hoisting mechanism according to claim 7, characterized in that: A plurality of universal wheels are installed at the bottom of the frame (140).

10. The prefabricated small box beam hoisting mechanism according to claim 1, characterized in that: The rope driving mechanism (500) comprises a driving motor (510), a rotating seat (520) and a steel rope winding roller (530); the driving motor (510) and the rotating seat (520) are fixed on the surface of the lifting base (100) and are arranged relative to each other; one end of the steel rope winding roller (530) is fixedly connected to the output end of the driving motor (510), and the other end is rotatably connected to the rotating seat (520); one end of the lifting steel rope (130) away from the hanging ring (230) is fixedly connected to the steel rope winding roller (530).

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