Suspension arm connecting structure

Abstract

The utility model belongs to the technical field of lazy arms, and relates to a lazy arm connecting structure which comprises a cross beam, a plurality of limiting grooves distributed in a straight line shape are formed in the two sides of the middle of the cross beam at intervals, lazy arms are arranged at the two ends of the cross beam in a sliding and sleeved mode, lifting hooks are arranged at the two ends of the bottoms of the lazy arms, and connecting frames are fixedly connected to one sides of the two lazy arms. The interior of each connecting frame is rotationally connected with a warping plate, one end of each warping plate is connected with the corresponding connecting frame through a connecting spring, the other end of each warping plate is hinged to a clamping column, each clamping column slidably penetrates through the side face of the corresponding connecting frame, and one end of each clamping column is movably arranged in the corresponding limiting groove. The lifting arm has the advantages that the lifting arm can drive the connecting frame to move together when sliding on the cross beam, so that the clamping column slides on the outer surface of the cross beam, when the clamping column moves to one limiting groove, the connecting spring can push the warping plate to rotate, the warping plate can push the end of the clamping column into the limiting groove, and automatic fixing of the lifting arm is achieved; the operation is more convenient.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of the cantilever, and relates to a cantilever connecting structure. BACKGROUND

[0002] The cantilever is a kind of mechanical equipment for hoisting and material handling, and is usually composed of a boom, a hydraulic system, a steel wire rope and a heavy object lifting tool.The cantilever needs to be used with a cross beam, and therefore needs to be installed on the cross beam by using a connecting structure.

[0003] A kind of cantilever device for showering frame turnover is disclosed in Chinese patent CN218619840U, including travelling crane ring, cantilever girder, cantilever cross beam, buffer mechanism and cantilever hook, travelling crane ring is located at the upper end surface of cantilever girder, travelling crane ring is fixedly connected with the upper end surface of cantilever girder by screw, cantilever cross beam is provided with two, cantilever cross beam is located at the both ends of cantilever girder, buffer mechanism is used to reduce model to move and shake, cantilever hook is used to hook solid model.

[0004] The cantilever device adjusts the distance of two cantilever cross beams by sliding the cantilever cross beams on the cantilever girder, and then fixes the cantilever cross beams using bolts and nuts.The position of the distance adjustment hole on the cantilever girder is fixed, so the bolt needs to be corresponded with the position of the distance adjustment hole during fixing, and then the nut is tightened for fixing.The adjustment auxiliary hole is opened on the adjustment plate, so that the position of the adjustment auxiliary hole and the cantilever cross beam is close, and the operation space of the bolt installation place is small, and the operation is not convenient.

[0005] To solve the above problems, the utility model provides a cantilever connecting structure. CONTENT OF UTILITY MODEL

[0006] To solve the problems in the background art, the utility model provides a cantilever connecting structure.

[0007] In order to achieve the above purpose, the utility model adopts the following technical scheme: a cross beam is provided, a plurality of limit grooves arranged in a linear shape are arranged at intervals on both sides of the middle part of the cross beam, cantilevers are slidably sleeved at both ends of the cross beam, hooks are arranged at both ends of the bottom of the cantilever.

[0008] One side of each of the two cantilevers is fixedly connected with a connecting frame, a hinged plate is rotatably connected in the inside of each connecting frame, one end of the hinged plate is connected with the connecting frame through a connecting spring, the other end of the hinged plate is hingedly connected with a clamping column, the clamping column slidably penetrates through the side surface of the connecting frame, and one end of the clamping column is movably arranged in the limit groove.

[0009] Further, sliding grooves are arranged at both ends of the top surface of the cross beam, and sliding blocks are fixedly connected to the top surface of the through holes on the two cantilevers and slidably connected in the corresponding sliding grooves.

[0010] Further, the middle part of the top surface of the cross beam is fixedly connected with a lifting ring, and the bottom of each end of the lifting arm is fixedly connected with a hanging ring.

[0011] Further, one of the connecting frames is slidably connected to one side of the cross beam provided with the limiting grooves, and the other connecting frame is slidably connected to the other side of the cross beam provided with the limiting grooves.

[0012] Further, the inside of each connecting frame is fixedly connected with a connecting shaft, the connecting shaft is located between the connecting spring and the clamping column, the flap is rotatably sleeved on the corresponding connecting shaft, the end of the flap away from the clamping column is fixedly connected with a push plate, and the push plate is movably arranged through the side surface of the connecting frame.

[0013] Further, the outer surface of the clamping column is provided with a mounting groove, and the connecting rod is rotatably connected to the inside of the mounting groove.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. The lifting arm connecting structure is provided with the connecting frame, the lifting arm is slidably moved on the cross beam and drives the connecting frame to move, the clamping column is slidably moved on the outer surface of the cross beam, the connecting spring pushes the flap to rotate when the clamping column moves to one of the limiting grooves, the end of the clamping column is pushed into the limiting groove by the flap, the automatic fixing of the lifting arm is realized, the position of the corresponding limiting groove does not need to be checked, and the operation is more convenient.

[0016] 2. The lifting arm connecting structure is provided with the flap, the flap is rotated and the connecting spring is compressed by pushing the push plate, the end of the clamping column is moved out of the limiting groove, the lifting arm can be pushed to move, then the push plate is loosened, the connecting spring pushes the flap, the flap has the force for moving the clamping column to the outside of the connecting frame, the lifting arm can be moved or positioned by moving the push plate, the distance between the two lifting arms is adjusted, the operation of the bolt is not needed, and the utility model is convenient to use. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 It is the three-dimensional structure schematic diagram of the utility model;

[0018] Fig. 2 It is the structure schematic diagram of the lifting hook in the utility model;

[0019] Fig. 3 It is the structure schematic diagram of the connecting frame in the utility model.

[0020] In the diagram: 1. Crossbeam; 2. Boom; 3. Limiting groove; 4. Connecting frame; 5. Rocker; 6. Connecting spring; 7. Locking post; 8. Fixing block; 9. Lifting rope; 10. Buffer block; 11. Fixing ring; 12. Buffer spring; 13. Hook; 14. Hanging ring; 15. Crane lifting ring; 16. Push plate. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figs. 1-3 As shown, the technical solution adopted by this utility model is as follows: a boom connection structure, including a crossbeam 1, with a number of limiting grooves 3 arranged in a straight line on both sides of the middle part of the crossbeam 1.

[0023] Both ends of the crossbeam 1 are slidably fitted with booms 2. The booms 2 are set perpendicular to the crossbeam 1.

[0024] Both ends of the top surface of the crossbeam 1 are provided with sliding grooves, and the top surfaces of the through holes on the two booms 2 are fixedly connected to sliders, which slide within the corresponding sliding grooves. When the booms 2 slide on the crossbeam 1, they will cause the sliders to slide within the corresponding sliding grooves, increasing the stability of the booms 2.

[0025] Each of the two booms 2 has a connecting frame 4 fixedly connected to one side. One connecting frame 4 is slidably connected to one side of the crossbeam 1 where a limiting groove 3 is provided, and the other connecting frame 4 is slidably connected to the other side of the crossbeam 1 where a limiting groove 3 is provided. This allows the connecting frames 4 to slide on both sides of the crossbeam 1, facilitating the operation of the two booms 2 by the operator.

[0026] Each connecting frame 4 has a rocker plate 5 rotatably connected inside. One end of the rocker plate 5 is connected to the connecting frame 4 by a connecting spring 6, and the other end of the rocker plate 5 is hinged to a locking post 7.

[0027] One end of the connecting spring 6 is fixedly connected to one side of the rocker 5, and the other end of the connecting spring 6 is fixedly connected to the inner wall of the connecting frame 4.

[0028] The locking post 7 slides through the side of the connecting frame 4, and one end of the locking post 7 is movably set in the limiting groove 3. When one end of the locking post 7 is in the limiting groove 3, the connecting frame 4 cannot move, so the boom 2 cannot slide on the crossbeam 1, thus positioning the boom 2 on the crossbeam 1.

[0029] The outer surface of the clamping column 7 is provided with a mounting groove, and a connecting rod is rotatably connected in the mounting groove. The other end of the connecting rod is fixedly connected to the end face of the flap 5. When the flap 5 rotates, the clamping column 7 is pulled through the connecting rod, and one end of the connecting rod rotates in the mounting groove, thereby pulling the clamping column 7 to slide on the connecting frame 4.

[0030] A connecting shaft is fixedly connected in each connecting frame 4, and the connecting shaft is located between the connecting spring 6 and the clamping column 7. In the initial state, the connecting spring 6 pushes the flap 5, and one end of the clamping column 7 extends to the outside of the connecting frame 4.

[0031] The flap 5 is rotatably sleeved on the corresponding connecting shaft. The end of the flap 5 away from the clamping column 7 is fixedly connected with a push plate 16, and the push plate 16 movably penetrates through the side face of the connecting frame 4. The flap 5 is rotated by pushing the push plate 16, and the clamping column 7 moves towards the inside of the connecting frame 4.

[0032] The two ends of the bottom of the hanging arm 2 are provided with hooks 13.

[0033] The top of each hook 13 is fixedly connected with a lifting rope 9, and the top of each lifting rope 9 is fixedly connected with a fixed block 8. The top end of the fixed block 8 is fixedly connected to the bottom surface of the hanging arm 2.

[0034] The bottom surface of the hanging arm 2 is fixedly connected with a fixed ring 11 at each fixed block 8, and the fixed block 8 is located in the corresponding fixed ring 11. A buffer block 10 is fixedly sleeved on the lifting rope 9 located in the fixed ring 11. The outer surface of the buffer block 10 is uniformly fixedly connected with a plurality of buffer springs 12, and the other end of the buffer spring 12 is fixedly connected to the inner wall of the fixed ring 11. The buffer spring 12 has a buffering effect on the buffer block 10.

[0035] The top surface of the cross beam 1 is fixedly connected with a crane lifting ring 15 in the middle. The crane lifting ring 15 is used to connect the crane with the cross beam 1.

[0036] The bottom of each end of the hanging arm 2 is fixedly connected with a hanging ring 14, and the hook 13 is movably arranged on the hanging ring 14. When the hook 13 is not used, the hook 13 can be hung on the corresponding hanging ring 14, so as to reduce the shaking of the hook 13.

[0037] Working principle:

[0038] When in use, the crane is connected with the cross beam 1 through the crane lifting ring 15, so as to move the cross beam 1 and the hanging arm 2 through the crane.

[0039] When the distance between the two hanging arms 2 needs to be adjusted, the push plate 16 is pushed by hand, so that the push plate 16 moves towards the inside of the connecting frame 4.

[0040] The push plate 16 drives one end of the rocker plate 5 to move, so that the rocker plate 5 rotates and compresses the connecting spring 6. The other end of the rocker plate 5 pulls the clamping column 7 through the connecting rod, the connecting rod rotates on the clamping column 7, so that the clamping column 7 slides to the inside of the connecting frame 4. The clamping column 7 will leave the limiting groove 3, at this time, the hanging arm 2 can be slid, so that the hanging arm 2 slides on the cross beam 1.

[0041] After sliding to the appropriate position, the push plate 16 is loosened, and the connecting spring 6 pushes the rocker plate 5 to rotate. The push plate 16 moves to the outside of the connecting frame 4, and the other end of the rocker plate 5 pushes the clamping column 7 to slide to the outside of the connecting frame 4.

[0042] If the clamping column 7 corresponds to one of the limiting grooves 3 at this time, one end of the clamping column 7 will directly move into the limiting groove 3, positioning the connecting frame 4 and positioning the hanging arm 2 on the cross beam 1.

[0043] If one end of the clamping column 7 abuts against the outer surface of the cross beam 1 at this time, the worker needs to continue to push the hanging arm 2, so that the clamping column 7 moves on the outer surface of the cross beam 1. When the clamping column 7 moves to the nearest limiting groove 3, the connecting spring 6 pushes one end of the clamping column 7 into the limiting groove 3, thereby positioning the hanging arm 2 on the cross beam 1.

[0044] After adjusting the distance between the two hanging arms 2, hoisting is performed using the lifting hook 13. In use, the buffer spring 12 has a buffering effect, which can unload part of the swinging force of the lifting rope 9, thereby reducing the shaking amplitude.

[0045] When not in use, the lifting hook 13 can be hung on the corresponding hanging ring 14.

[0046] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or equivalently replace part of the technical features, and any modification, equivalent replacement, improvement, etc. within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A boom connection structure characterized by comprising: The utility model relates to a kind of crane, including crossbeam (1), the both sides of the middle part of the crossbeam (1) are spaced apart and are provided with a plurality of limit slots (3) in the form of a straight line, the both ends of crossbeam (1) are slidably sleeved with cantilever (2), the both ends of cantilever (2) bottom are provided with lifting hook (13); One side of two the cantilever (2) is fixedly connected with connecting frame (4), the inside of each connecting frame (4) is rotatably connected with warped board (5), one end of warped board (5) is connected with connecting frame (4) by connecting spring (6), the other end of warped board (5) is hinged with clamping column (7), clamping column (7) slidingly penetrates the side of connecting frame (4), one end of clamping column (7) is movably arranged in limit slot (3); One of connecting frame (4) is slidably connected on one side of crossbeam (1) and is provided with limit slot (3), another connecting frame (4) is slidably connected on the other side of crossbeam (1) and is provided with limit slot (3).

2. A boom connection structure according to claim 1, characterized in that: The top surface of the crossbeam (1) is provided with a sliding slot at both ends, and the top surface of the through hole on the two cantilevers (2) is fixedly connected with a sliding block, which is slidably connected in the corresponding sliding slot.

3. The boom connection structure of claim 1, wherein: The top surface of the crossbeam (1) is fixedly connected with a crane lifting ring (15) at the middle, and the bottom of the both ends of each cantilever (2) is fixedly connected with a hanging ring (14), and the lifting hook (13) is movably arranged on the hanging ring (14).

4. The boom connection structure of claim 1, wherein: The inside of each connecting frame (4) is fixedly connected with a connecting shaft, which is located between the connecting spring (6) and the clamping column (7), the warped board (5) is rotatably sleeved on the corresponding connecting shaft, the end of the warped board (5) away from the clamping column (7) is fixedly connected with a push plate (16), and the push plate (16) movably penetrates the side of the connecting frame (4).

5. The boom connection structure of claim 1, wherein: The outer surface of the clamping column (7) is provided with a mounting slot, and the inside of the mounting slot is rotatably connected with a connecting rod, and the other end of the connecting rod is fixedly connected with the end face of the warped board (5).

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