An adjustable span balanced beam spreader

Abstract

The utility model relates to a kind of balance beam lifting appliance with adjustable spacing, including balance beam, the both ends of balance beam are equipped with frame, the downside of frame is fixedly installed with a pair of hanger ring, balance beam is equipped with the adjusting mechanism for the translation frame;The both sides of frame are fixedly installed with sleeve, the same door type pole is inserted between two side sleeves, the lower end of door type pole is fixedly installed with the one end of connecting plate, the other end of connecting plate is fixedly installed with dynamic clamping plate, the both sides of the end of balance beam are fixedly installed with the fixed clamping plate for clamping dynamic clamping plate, the both sides of each door type pole are equipped with spring, one end of spring is fixedly assembled with sleeve, and the other end of spring is fixedly assembled with door type pole;Lifting mechanism is installed between door type pole and frame.The utility model is through double-stage positioning mechanism, effectively prevent the horizontal displacement of frame, significantly improve the stability and security of lifting appliance.

Description

Technical Field

[0001] This utility model relates to the field of lifting equipment technology, specifically to a balanced beam lifting equipment with adjustable spacing. Background Technology

[0002] The currently used balance beam lifting equipment mainly includes a balance beam, hanging straps, and hanging rings. A pair of hanging seats are fixedly installed on the front and rear sides of the balance beam, and hanging straps are hung on the hanging seats. The tops of the four hanging straps are attached to the same hook of the crane to ensure stability during the translation process. Hanging rings are fixedly installed on the lower end of the balance beam for connecting external safety belts, so as to lift the pallet and the items fixed on it.

[0003] To ensure that the position of the hanging rings can correspond to the position of the connecting lugs on pallets of different sizes, the existing technology has frames slidably installed at both ends of the balance beam, and a pair of hanging rings are fixedly installed on the lower side of each frame. The frames are provided with screw holes, and the distance between the frames can be adjusted by manually turning the screws in the screw holes, thereby adjusting the position of the hanging rings corresponding to the connecting lugs and improving the adaptability of the lifting equipment.

[0004] However, by using the screw to translate and lock the frame, the frame will be subjected to a horizontal component force when the weight on the pallet is uneven, which will then act on the screw. This places high demands on the strength of the screw, and there is also a safety hazard of frame slippage or even items falling off the pallet if the screw connection fails.

[0005] Therefore, in order to solve the above problems, a balance beam lifting device with adjustable spacing is proposed. Utility Model Content

[0006] The purpose of this invention is to provide a balanced beam lifting device with adjustable spacing, which can more stably adjust the frame by translation and securely lock the frame laterally, thereby solving the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: An adjustable-spacing balance beam lifting device includes a balance beam, with frames fitted at both ends of the balance beam. A pair of hanging rings are fixedly installed on the lower side of each frame. The balance beam is equipped with an adjustment mechanism for translating the frames. Sleeves are fixedly installed on both sides of the frames, and a common portal rod is inserted between the sleeves on both sides. A connecting plate is fixedly installed at the lower end of each portal rod, and a movable locking plate is fixedly installed at the other end of each connecting plate. Fixed locking plates for engaging the movable locking plates are fixedly installed on both sides of the end of the balance beam. Springs are fitted on both sides of each portal rod, with one end of the spring fixedly assembled to a sleeve and the other end of the spring fixedly assembled to the portal rod. A lifting mechanism is installed between the portal rod and the frame.

[0008] Specifically, each side has several fixed plates evenly distributed along the horizontal direction, and a slot is formed between adjacent fixed plates, with the moving plate engaging with the corresponding slot.

[0009] Specifically, the lifting mechanism includes a lever, a torsion seat, a rotating roller, and a platform. The platform is fixedly installed on the upper side of the frame. The horizontal part of the portal frame is rotatably mounted with a lever via the torsion seat. The lower end of the lever is rotatably mounted with a rotating roller. The top of the platform has a groove for engaging the rotating roller.

[0010] Furthermore, the groove is located directly below the horizontal portion of the gantry rod, and a limiting plate is fixedly installed on the side of the groove away from the rotating roller.

[0011] Specifically, the adjustment mechanism includes linear guide rails and manual lead screw modules. Linear guide rails are fixedly installed at the four corners of each end of the balance beam. The slides of the linear guide rails at the four corners are fixedly assembled with the frame on the same side. Manual lead screw modules are fixedly installed at both ends of the upper side of the balance beam. The slides of the manual lead screw modules at each end are fixedly assembled with the frame on the same side.

[0012] Specifically, protective plates are fixedly installed at both ends of the upper surface of the balance beam.

[0013] Specifically, support feet are fixedly installed at both ends of the lower surface of the balance beam.

[0014] Compared with the prior art, the beneficial effects of this utility model are: The adjustment mechanism adopts a combination of linear guide rail and manual screw module to achieve high-precision translation adjustment, which is convenient for adjusting the position of the hanging ring, has strong hoisting adaptability, and the reverse braking capability of the worm gear reducer in the manual screw module forms a first-level lock. The lifting mechanism drives the gantry rod through a spring, so that the moving plate and the fixed plate are tightly engaged in the slot, forming a two-stage locking mechanism; The aforementioned dual-level positioning mechanism effectively prevents horizontal displacement of the frame, significantly improving the stability and safety of the lifting equipment. Attached Figure Description

[0015] Figure 1 This is a schematic front view of the structure of this utility model; Figure 2 This is an enlarged schematic diagram of the structure at one end of the balance beam of this utility model; Figure 3 This is a partial sectional view of the lifting mechanism of this utility model. Figure 4 This utility model Figure 1 A schematic cross-sectional view of the structure along the AA direction.

[0016] In the diagram: 1 Balance beam, 2 Adjustment mechanism, 21 Linear guide rail, 22 Manual lead screw module, 3 Lifting mechanism, 31 Lever, 32 Torque seat, 33 Groove, 34 Rotary roller, 35 Platform, 4 Portal rod, 5 Sleeve, 6 Protective plate, 7 Support foot, 8 Spring, 9 Frame, 10 Moving clamping plate, 11 Fixed clamping plate, 12 Limiting plate. Detailed Implementation

[0017] 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.

[0018] Example content: Please see Figure 1 , Figure 2 A balance beam lifting device with adjustable spacing is provided, including a balance beam 1, with frames 9 fitted at both ends of the balance beam 1, and a pair of hanging rings fixedly installed on the lower side of each frame 9. The balance beam 1 is equipped with an adjustment mechanism 2 for translating the frames 9. The adjustment mechanism 2 is used to move the frames 9 horizontally and perform primary positioning to facilitate better alignment of each pair of hanging rings with the connecting ears on the pallet.

[0019] Sleeves 5 are fixedly installed on both sides of the frame 9. The sleeves 5 are vertically arranged. The same portal rod 4 is inserted between the two sleeves 5. One end of the connecting plate is fixedly installed at the lower end of the portal rod 4. The other end of the connecting plate is fixedly installed with a movable clamping plate 10. The movable clamping plate 10 is located on the same side (left or right) of the frame 9. The portal rod 4 is a component made of one horizontal part and two vertical parts. The portal rod 4 can move up and down along the sleeves 5, thereby driving the movable clamping plates 10 at both ends to move up and down synchronously.

[0020] Both sides (front and rear) of the end of the balance beam 1 are fixedly installed with fixed clamping plates 11 for engaging the moving clamping plate 10. Each fixed clamping plate 11 is vertically arranged. Each portal rod 4 is fitted with a spring 8 on both sides. One end of the spring 8 is fixedly assembled with the sleeve 5, and the other end of the spring 8 is fixedly assembled with the portal rod 4. The vertical part of the portal rod 4 is fixedly installed with a shoulder for supporting the spring 8. The spring 8 is used to provide a downward force to the portal rod 4.

[0021] A lifting mechanism 3 is installed between the gantry rod 4 and the frame 9. The lifting mechanism 3 is used to lift the gantry rod 4 during use, thereby separating the moving plate 10 from the fixed plate 11.

[0022] Each side has several fixed plates 11 evenly distributed along the horizontal direction to cover the translational stroke of the frame 9. Adjacent fixed plates 11 form slots, and the movable plates 10 engage with the corresponding slots. When the movable plates 10 engage with the corresponding slots, the frame 9 cannot move horizontally, thus playing a secondary positioning role.

[0023] Please see Figure 3 The structure of lifting mechanism 3: The lifting mechanism 3 includes a lever 31, a torque seat 32, a rotating roller 34, and a platform 35. The platform 35 is fixedly installed on the upper side of the frame 9. The horizontal part of the gantry rod 4 is rotatably mounted with the lever 31 via the torque seat 32. The lower end of the lever 31 is rotatably mounted with the rotating roller 34. The top of the platform 35 has a groove 33 for engaging the rotating roller 34.

[0024] The torsion seat 32 is an existing component with a fixed ring, a moving ring, and a torsion spring. The fixed ring is fixedly assembled to the horizontal part of the portal rod 4, and the moving ring is rotatably assembled to the horizontal part of the portal rod 4. The torsion spring is located between the fixed ring and the moving ring, and its two ends are fixedly assembled to the fixed ring and the moving ring, respectively. The lever 31 is fixedly installed on the moving ring, and the torsion spring provides a clockwise rotational force to the moving ring and the lever 31.

[0025] The lever 31 is longer on the left side of the torque seat 32 than on the right side, forming a lever structure that allows for easy application of torque by hand.

[0026] The groove 33 is located directly below the horizontal part of the portal rod 4. The rotating roller 34 can enter the groove 33 after swinging with the lever 31. At this time, the lever 31 is in a vertical position, which plays the role of lifting the portal rod 4. A limiting plate 12 is fixedly installed on the side of the groove 33 away from the rotating roller 34. The limiting plate 12 is used to block the rotating roller 34 in the groove 33, so that the lever 31 has a unique reset swing direction, that is, the lever 31 is moved counterclockwise, so that the rotating roller 34 is separated from the groove 33. Under the joint action of the spring 8 and the torsion seat 32, the portal rod 4 and the lever 31 are reset.

[0027] Please see Figure 4 The structure of adjustment mechanism 2: The adjustment mechanism 2 includes linear guide rails 21 and manual lead screw module 22. Linear guide rails 21 are fixedly installed at the four corners of each end of the balance beam 1. The slides of the linear guide rails 21 at the four corners are fixedly assembled with the frame 9 on the same side. The arrangement of four linear guide rails 21 for each balance beam 1 can improve the stability of translation.

[0028] Manual lead screw modules 22 are fixedly installed at both ends of the upper side of the balance beam 1. The slide of each manual lead screw module 22 is fixedly assembled with the frame 9 on the same side. The manual lead screw module 22 is an existing component with a structure including a worm gear reducer, handwheel, lead screw, slide, and housing. After turning the handwheel, the lead screw can be rotated through the worm gear reducer, and then the frame 9 can be translated through the slide. Compared with the translation method of the screw in the prior art, the adjustment accuracy is higher, and the reverse braking capability of the worm gear reducer is also stronger than the braking capability of the screw.

[0029] In addition, protective plates 6 are fixedly installed at both ends of the upper surface of the balance beam 1. The protective plates 6 are used to shield the adjustment mechanism 2 to prevent damage to the components in the adjustment mechanism 2 due to bumps.

[0030] Support legs 7 are fixedly installed at both ends of the lower surface of the balance beam 1. The lower surface of the support legs 7 is lower than the lower end of the hanging ring so that the lifting device can be placed on the ground by the two support legs 7 when it is not in use.

[0031] The working principle of this embodiment: Before adjustment, the lever 31 of the lifting mechanism 3 is rotated clockwise to overcome the resistance of the torque seat 32, so that the roller 34 is engaged in the groove 33 on the platform 35. At this time, the gantry rod 4 will be lifted and the spring 8 will be compressed, and the moving plate 10 will disengage from the slot between the fixed plate 11.

[0032] During adjustment, the handwheel of the manual lead screw module 22 is turned, and the slide table is driven by the lead screw to translate the frame 9 along the linear guide rail 21, so as to achieve precise adjustment of the distance between the two pairs of hanging rings. The worm gear reducer in the manual lead screw module 22 serves as the first-level lock.

[0033] After adjustment, turn the lever 31 counterclockwise to disengage the roller 34 from the groove 33 and reset it. The gantry rod 4 is reset downward by the force of the spring 8, which in turn locks the moving plate 10 into the corresponding slot, forming a secondary lock and effectively preventing the horizontal displacement of the frame 9.

[0034] After the crane connects the safety belt and the pallet through this lifting device, it can more reliably transfer items fixed on the pallet.

[0035] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0036] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A balance beam lifting device with adjustable spacing, comprising a balance beam (1), characterized in that: Both ends of the balance beam (1) are fitted with frames (9), and a pair of hanging rings are fixedly installed on the lower side of each frame (9). The balance beam (1) is equipped with an adjustment mechanism (2) for translating the frame (9). Both sides of the frame (9) are fixedly installed with sleeves (5), and the same portal rod (4) is inserted between the two sleeves (5). The lower end of the portal rod (4) is fixedly installed with one end of a connecting plate, and the other end of the connecting plate is fixedly installed with a movable clamping plate (10). Both sides of the end of the balance beam (1) are fixedly installed with fixed clamping plates (11) for clamping the movable clamping plate (10). Both sides of each portal rod (4) are fitted with springs (8). One end of the spring (8) is fixedly assembled with the sleeve (5), and the other end of the spring (8) is fixedly assembled with the portal rod (4). A lifting mechanism (3) is installed between the portal rod (4) and the frame (9).

2. The adjustable-spacing balance beam lifting device according to claim 1, characterized in that: Each side has several fixed card plates (11) evenly distributed along the horizontal direction, and a card slot is formed between adjacent fixed card plates (11), and the moving card plate (10) engages with the corresponding card slot.

3. The adjustable-spacing balance beam lifting device according to claim 1, characterized in that: The lifting mechanism (3) includes a lever (31), a torque seat (32), a rotating roller (34), and a platform (35). The platform (35) is fixedly installed on the upper side of the frame (9). The horizontal part of the portal rod (4) is rotatably mounted with the lever (31) via the torque seat (32). The lower end of the lever (31) is rotatably mounted with the rotating roller (34). The top of the platform (35) is provided with a groove (33) for engaging the rotating roller (34).

4. The adjustable-spacing balance beam lifting device according to claim 3, characterized in that: The groove (33) is located directly below the horizontal part of the gantry rod (4), and a limit plate (12) is fixedly installed on the side of the groove (33) away from the rotating roller (34).

5. The adjustable-spacing balance beam lifting device according to claim 1, characterized in that: The adjustment mechanism (2) includes a linear guide rail (21) and a manual screw module (22). A linear guide rail (21) is fixedly installed at each of the four corners of the balance beam (1). The slides of the linear guide rail (21) at each of the four corners are fixedly assembled with the frame (9) on the same side. A manual screw module (22) is fixedly installed at both ends of the upper side of the balance beam (1). The slide of the manual screw module (22) at each end is fixedly assembled with the frame (9) on the same side.

6. The adjustable-spacing balance beam lifting device according to claim 1, characterized in that: Protective plates (6) are fixedly installed at both ends of the upper surface of the balance beam (1).

7. The adjustable-spacing balance beam lifting device according to claim 1, characterized in that: Support feet (7) are fixedly installed at both ends of the lower surface of the balance beam (1).

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