Lifting appliance for carrying guide rail

Abstract

The utility model discloses a lifting appliance for carrying guide rails, which belongs to the technical field of lifting appliances for carrying guide rails and comprises a lifting appliance body, first sliding grooves are formed in the front end and the rear end in the lifting appliance body, sliding rods are arranged in the first sliding grooves, and sliding plates penetrate through the left end and the right end of each sliding rod. A bidirectional lead screw is connected to a middle bearing in the lifting appliance body, the left end and the right end of the bidirectional lead screw are in threaded connection with the sliding plates, second sliding grooves are formed in the ends, away from the bidirectional lead screw, of the first sliding grooves, the front ends and the rear ends of the sliding plates are connected with rolling wheels, and the front sides and the rear sides of the lower ends of the sliding plates are slidably connected with hooks. The lifting appliance for carrying the guide rail has the effects of adjusting the positions of the hooks and disassembling and assembling the hooks, the positions of the hooks are adjusted by driving the sliding plate through the two-way screw rod, so that the tedious operation of repeatedly replacing the chain on the multiple hooks is reduced, and meanwhile, the hooks are disassembled and assembled through the plug pins, so that the labor intensity of workers is reduced. Therefore, the hook can be maintained and replaced.

Description

Technical Field

[0001] The utility model relates to the technical field of guide rail transport slings, in particular to a sling used for guide rail transport. Background Art

[0002] A sling refers to a device used in lifting machinery to lift heavy objects. The most commonly used slings for lifting finished objects are hooks and slings. Others include lifting rings, lifting suction cups, clamps and forks, which are widely used in the lifting and hoisting industry. In rail slings, chains, racks, hangers and multiple sets of hooks are generally used to lift heavy objects.

[0003] The elevator guide rails on the market are long strips, and usually need to be hoisted and transported through a gantry equipped with a hoist. The hoist is hung on the hook at the corresponding position through a chain, resulting in the need to hang the chain on hooks at different positions during the transportation of steel frames of different lengths in order to adapt to the length of the steel frame. This reduces processing efficiency and makes it inconvenient for personnel to operate. At the same time, the hook is prone to wear and damage after long-term use. To address the above problems, we have launched a hoist for transporting guide rails. Utility Model Content

[0004] The utility model discloses a sling for guide rail transportation, wherein the position of a hook is fixed and cannot be adjusted, and the hook is prone to wear and damage after long-term use.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A sling for rail transportation comprises a sling body, wherein first slide grooves are provided at the front and rear ends of the sling body, a sliding rod is arranged inside the first slide groove, sliding plates are penetrated at the left and right ends of the sliding rod, a bidirectional screw rod is connected to the middle bearing inside the sling body, the sliding plates are threadedly connected to the left and right ends of the bidirectional screw rod, a second slide groove is provided at the end of the first slide groove away from the bidirectional screw rod, rollers are connected to the front and rear ends of the sliding plate, hooks are slidably connected to the front and rear sides of the lower end of the sliding plate, and a pin is penetrated at the upper end of the hook.

[0007] In a preferred solution, a first spring is arranged inside the end of the pin away from the vertical line in the sling body, and the lower end of the first spring is connected to a limiting block; by providing the first spring and the limiting block, the position of the pin can be fixed to prevent it from detaching.

[0008] In a preferred solution, a rotating disk is fixedly connected to the right side of the inner tube, and a limiting rod is connected to the upper left end of the rotating disk; by providing the limiting rod, the rotation direction of the rotating disk can be fixed to prevent the rotating disk from rotating on its own.

[0009] In a preferred solution, a groove is provided on the right side of the sling body, and the limit rod is slidably connected inside the groove; by providing the groove, the position of the limit rod is fixed so that the rotating disk cannot rotate.

[0010] In a preferred embodiment, a semicircular block is slidably connected to the left side of the upper end of the inner tube, and a second spring is connected to the lower end of the semicircular block; by setting the semicircular block and the second spring, the position of the inner tube can be limited to prevent the inner tube from slipping out of the outer tube.

[0011] The utility model provides a lifting device for rail transportation through improvement, which has the following improvements and advantages compared with the prior art:

[0012] The sling is provided with a first slide groove at the front and rear ends of the sling body, a sliding rod is arranged inside the first slide groove, and sliding plates are penetrated at the left and right ends of the sliding rod, a two-way screw rod is connected to the middle bearing inside the sling body, and the two-way screw rod is threadedly connected to the sliding plates at the left and right ends, a second slide groove is provided at one end of the first slide groove away from the two-way screw rod, and rollers are connected to the front and rear ends of the sliding plate, and hooks are slidably connected to the front and rear sides of the lower end of the sliding plate, and a latch is penetrated at the upper end of the hook. The sling for guide rail transportation provided by the utility model has the effect of adjusting the position of the hook and disassembling and assembling the hook. The sliding plate is driven by the two-way screw rod to promote the adjustment of the position of the hook, so as to reduce the tedious operation of repeatedly replacing the chain on multiple hooks, and the hook is disassembled and assembled by the latch to realize the inspection and replacement of the hook. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall structure of a sling for guide rail transportation proposed by the utility model;

[0014] Figure 2 This is a schematic diagram of the top-sectional structure of a sling for guide rail transportation proposed by the utility model;

[0015] Figure 3 This is a schematic diagram of the main cross-sectional structure of a sling for guide rail transportation proposed by the utility model;

[0016] Figure 4 This is a schematic diagram of the main cross-sectional structure of the inner tube of a sling for guide rail transportation proposed by the utility model;

[0017] Figure 5 A sling for guide rail transportation proposed by the utility model Figure 3 Schematic diagram of the enlarged structure of part A.

[0018] In the attached drawings: 1. sling body; 2. first slide groove; 3. slide rod; 4. second slide groove; 5. slide plate; 6. bidirectional screw rod; 7. roller; 8. hook; 9. latch; 10. first spring; 11. limit block; 12. outer tube; 13. inner tube; 14. rotating disk; 15. limit rod; 16. groove; 17. second spring; 18. semicircular block; 19. through hole. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application usually described and marked in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application claimed for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present application.

[0020] The utility model discloses a lifting device for guide rail transportation, which is mainly used in the scene of transporting steel frames of different lengths.

[0021] Reference Figure 1 , Figure 2 and Figure 3 A sling for rail transportation comprises a sling body 1, characterized in that a first slide groove 2 is provided at both front and rear ends inside the sling body 1, a slide rod 3 is arranged inside the first slide groove 2, and sliding plates 5 are penetrated at both left and right ends of the slide rod 3, a bidirectional screw rod 6 is connected to the middle bearing inside the sling body 1, and the sliding plates 5 are threadedly connected to the left and right ends of the bidirectional screw rod 6, a second slide groove 4 is provided at the end of the first slide groove 2 away from the bidirectional screw rod 6, and rollers 7 are connected to the front and rear ends of the sliding plate 5.

[0022] In this embodiment: first, the two groups of chains are hooked on the hooks 8 on the left and right sides respectively, and the lower end of the chain is a storage rack. When it is necessary to transport a relatively long steel frame, the two-way screw rod 6 is rotated to drive the sliding plates 5 at the left and right ends to move to both sides along the sliding rod 3 respectively, so that the hook 8 at the lower end of the sliding plate 5 drives the chain to open to both sides, and there is no need to adjust the position of the chain, and the middle distance between the left and right groups of chains is increased to reduce the tedious operation of repeatedly replacing the chains on multiple hooks 8. At the same time, during the displacement process, the roller 7 on the sliding plate 5 slides in the second slide groove 4, which is convenient for increasing the smoothness of the displacement of the sliding plate 5. At that time, the position adjustment of the hook 8 is completed, and the relatively long steel frame is fixed by the storage rack at the lower end of the chain, and then transported.

[0023] In the above scheme, after the multiple groups of hooks 8 are replaced with one group of hooks 8, long-term use is prone to cause wear and damage. The specific operation is as follows:

[0024] Reference Figure 1 , Figure 3 and Figure 5 In a preferred embodiment, hooks 8 are slidably connected to the front and rear sides of the lower end of the sliding plate 5, and a latch 9 runs through the upper end of the hook 8. A first spring 10 is arranged inside the end of the latch 9 away from the vertical line in the sling body 1, and the lower end of the first spring 10 is connected to a limiting block 11. The hook 8 is fixedly connected to the sliding plate 5 through the latch 9, and the limiting block 11 is slidably connected to the latch 9.

[0025] In this embodiment: after the steel frame is transported, the first spring 10 is contracted by pressing the limit block 11, causing the limit block 11 to contract into the inside of the latch 9. At that time, the latch 9 is pulled out horizontally from the hook 8 and the sliding plate 5, and the sliding plate 5 is separated by pulling down the hook 8. At this time, the hook 8 is inspected or replaced to reduce the loss of workpieces and personal injury caused by damage to the hook 8 during transportation. After the inspection is completed, the upper end of the hook 8 is embedded into the lower end of the sliding plate 5, and the hook 8 and the sliding plate 5 are crossed by the latch 9. During the crossing of the latch 9, the limit block 11 contacts the sliding plate 5 and contracts into the inside of the latch 9. After the penetration is completed, the limit block 11 is popped out by the first spring 10, thereby checking the hooks 8 one by one.

[0026] In the first embodiment, the sliding plate 5 drives the hook 8 to move and needs to be fixed in position. During the transportation process, the bidirectional screw rod 6 is prone to rotation due to force or vibration, resulting in the change of the position of the lower end chain and the hook 8, affecting the transportation effect. The specific operation is as follows:

[0027] Reference Figure 1 , Figure 2 and Figure 4 In a preferred embodiment, the right side of the bidirectional screw rod 6 is fixedly connected to the outer tube 12, the inner tube 13 is slidably connected inside the outer tube 12, a through hole 19 is provided at the upper end of the outer tube 12, a rotating disk 14 is fixedly connected to the right side of the inner tube 13, and a limit rod 15 is connected to the upper left end of the rotating disk 14, a groove 16 is provided on the right side of the sling body 1, and the limit rod 15 is slidably connected inside the groove 16, a semicircular block 18 is slidably connected to the left side of the upper end of the inner tube 13, and a second spring 17 is connected to the lower end of the semicircular block 18

[0028] In this embodiment: by pulling the rotating disk 14 with force, the semicircular block 18 is caused to shrink into the inner tube 13, the second spring 17 shrinks, and the inner tube 13 slides and extends to the left in the outer tube 12. At the same time, the limit rod 15 slides out of the groove 16 in the hanger body 1, and then the rotating disk 14 can be rotated to rotate the bidirectional screw rod 6. After the rotation of the bidirectional screw rod 6 is completed, the limit rod 15 is clamped into the groove 16 by pushing the rotating disk 14, so that the rotating disk 14 cannot rotate. At the same time, the semicircular block 18 in the inner tube 13 is ejected by the second spring 17, and the semicircular block 18 passes through the through hole 19 to initially hold the outer tube 12, ensuring that the lower limit rod 15 cannot slide out of the groove 16 when there is no force.

[0029] Working principle: When in use, first hook the two groups of chains on the hooks 8 on the left and right sides respectively. The lower end of the chain is a storage rack. When it is necessary to transport a relatively long steel frame, rotate the two-way screw rod 6 to drive the sliding plates 5 at both ends to move to both sides along the sliding rod 3 respectively, so that the hook 8 at the lower end of the sliding plate 5 drives the chain to open to both sides, so that there is no need to adjust the position of the chain, and the middle distance between the left and right groups of chains is increased, so as to reduce the tedious operation of repeatedly replacing the chain on multiple hooks 8. At the same time, during the displacement process, the roller 7 on the sliding plate 5 slides in the second slide groove 4, which is convenient for increasing the smoothness of the displacement of the sliding plate 5. At that time, the position adjustment of the hook 8 is completed, and the relatively long steel frame is fixed by the storage rack at the lower end of the chain. At that time, the limit rod 15 is embedded in the groove 16 to prevent the rotating disk from rotating. 14 drives the bidirectional screw rod 6 to rotate, and then it is transported. After the steel frame is transported, the limit block 11 is pressed, and the first spring 10 is contracted, causing the limit block 11 to contract into the inside of the latch 9. At that time, the latch 9 is pulled out horizontally from the hook 8 and the sliding plate 5, and the sliding plate 5 is separated by pulling down the hook 8. At this time, the hook 8 is repaired or replaced to reduce the loss of workpieces and personal injury caused by damage to the hook 8 during transportation. After the repair is completed, the upper end of the hook 8 is embedded into the lower end of the sliding plate 5, and the hook 8 and the sliding plate 5 are crossed by the latch 9. During the crossing of the latch 9, the limit block 11 contacts the sliding plate 5 and contracts into the inside of the latch 9. After the penetration is completed, the limit block 11 is popped out by the first spring 10, thereby checking the hooks 8 one by one.

[0030] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited to this. The replacement can be a replacement of part of the structure, device, method step, or a complete technical solution. Equivalent replacement or change based on the technical solution of the utility model and its utility model concept should be included in the protection scope of the utility model.

Claims

1. A sling for rail transport, comprising a sling body (1), characterized in that: The first slide groove (2) is provided at the front and rear ends of the sling body (1), a slide rod (3) is provided inside the first slide groove (2), and sliding plates (5) are passed through the left and right ends of the slide rod (3). A bidirectional screw rod (6) is connected to the intermediate bearing inside the sling body (1), and the left and right ends of the bidirectional screw rod (6) are threadedly connected to the sliding plate (5). A second slide groove (4) is provided at one end of the first slide groove (2) away from the bidirectional screw rod (6), and rollers (7) are connected to the front and rear ends of the sliding plate (5). A hook (8) is slidably connected to the front and rear sides of the lower end of the sliding plate (5), and a pin (9) is passed through the upper end of the hook (8).

2. A lifting device for rail transportation according to claim 1, characterized in that: A first spring (10) is disposed inside the end of the latch pin (9) away from the vertical line in the sling body (1), and the lower end of the first spring (10) is connected to a limiting block (11).

3. A lifting device for rail transportation according to claim 2, characterized in that: The hook (8) is fixedly connected to the sliding plate (5) via the latch (9), and the limit block (11) is slidably connected to the latch (9).

4. A lifting device for rail transportation according to claim 1, characterized in that: The right side of the bidirectional screw rod (6) is fixedly connected to an outer tube (12), the inner part of the outer tube (12) is slidably connected to an inner tube (13), and a through hole (19) is formed at the upper end of the outer tube (12).

5. A lifting device for rail transportation according to claim 4, characterized in that: A rotating disk (14) is fixedly connected to the right side of the inner tube (13), and a limiting rod (15) is connected to the upper end of the left side of the rotating disk (14).

6. A lifting device for rail transportation according to claim 5, characterized in that: A groove (16) is provided on the right side of the sling body (1), and the limiting rod (15) is slidably connected inside the groove (16).

7. A lifting device for rail transportation according to claim 4, characterized in that: A semicircular block (18) is slidably connected to the left side of the upper end of the inner tube (13), and a second spring (17) is connected to the lower end of the semicircular block (18).

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