Hook with adjustable spacing

Abstract

The utility model relates to the technical field of hooks, and discloses a distance-adjustable hook which comprises a rack and rotary systems installed on the two sides of the rack, each rotary system comprises a plurality of chain wheels distributed on the side face of the rack and a transmission chain meshed with the chain wheels in a transmission mode, the transmission chains are bent into a plurality of channels, and each chain wheel comprises guide wheels at the top points of the periphery. A plurality of steering wheels are distributed in the transmission chains in a high-low staggered mode, connecting rods are arranged between the transmission chains, the connecting rods are evenly distributed on the transmission chains, hooks are rotationally connected to the connecting rods, and locking pieces are arranged on the two sides of each hook. The free end of the locking screw abuts against the connecting rod by screwing the locking screw, the sliding rings and the connecting rod are locked and fixed, and therefore the hook between the sliding rings on the two sides is limited, the hook is prevented from moving again after distance adjustment is completed, and the service life of the hook is prolonged. In the hanging object placing process, the hook does not need to be temporarily fixed through hand holding or other modes, and the hanging object storage efficiency is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of hooks, and particularly relates to a hook with adjustable spacing. BACKGROUND

[0002] Hooks are widely used in daily production and life as a common load-bearing structure, for example, hooks are needed on storage racks for placing and storing reels to achieve the suspension of the reels.

[0003] Patent (CN117184731A) discloses a horizontal multi-layer intelligent reel library, which comprises a chain wheel transmission assembly, the chain wheel transmission assembly comprises a transmission chain and chain wheels, the transmission chain is bent in multiple ways, multiple chain wheels are meshed with the transmission chain, the two ends of a connecting shaft are fixedly connected with the transmission chains of the two chain wheel transmission assemblies, the connecting shaft is rotatably connected with two hanging hooks, and a storage shaft is hung on the two hanging hooks; the advantage of the horizontal multi-layer intelligent reel library lies in that the two hanging hooks can slide along the connecting shaft, and the spacing between the two hanging hooks is adjusted to adapt to reels of different lengths, but the following shortcomings also exist: after the hanging hooks are adjusted to the appropriate spacing, the hanging hooks and the connecting shaft cannot be locked and fixed, and the hanging hooks need to be temporarily fixed by hand or other means while the reels are placed, so that the process of storing the reels is relatively complex and tedious. SUMMARY

[0004] Therefore, the utility model aims to provide a hook with adjustable spacing to solve the technical problem that the hook and the connecting shaft cannot be fixed after the spacing of the hook is adjusted in the prior art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A hook with adjustable spacing comprises a rack and a rotary system installed on both sides of the rack, the rotary system comprises multiple chain wheels distributed on the side surface of the rack and a transmission chain meshed and driven by the chain wheels, the transmission chain is bent in multiple ways, the chain wheel comprises a guide wheel at the four corners, multiple steering wheels are distributed in the guide wheel in a staggered manner, a connecting rod is arranged between the transmission chains, multiple connecting rods are evenly distributed on the transmission chain, a hook is rotatably connected to the connecting rod, and a locking piece is arranged on both sides of the hook.

[0007] Further, a hanging hole is formed in the upper part of the hook, and the diameter of the hanging hole is greater than the diameter of the connecting rod.

[0008] Further, the locking piece comprises a sliding ring sleeved on the outer periphery of the connecting rod and slidably connected with the connecting rod, the inner diameter of the sliding ring is the same as the diameter of the connecting rod, a locking hole is formed in the outer side surface of the sliding ring in a radial direction, and the locking hole penetrates the inner and outer side surfaces of the sliding ring. A locking screw is threadedly connected in the locking hole, and the free end of the locking screw is abutted against the connecting rod by screwing the locking screw.

[0009] Further, the side wall of the hanging hole is provided with a plurality of spherical mounting grooves in the circumferential direction, and a rolling ball is rotatably connected in the spherical mounting groove and point-contacted with the outer surface of the connecting rod.

[0010] Further, the side wall of the hanging hole is provided with a plurality of spherical mounting grooves in the circumferential direction, and a rolling ball is rotatably connected in the spherical mounting groove and point-contacted with the outer surface of the connecting rod.

[0011] Further, a plurality of support plates are fixedly connected to the inner side of the rack, and the support plates are in one-to-one correspondence with the sprockets and are rotatably connected through the shaft.

[0012] The beneficial effects of the utility model lie in:

[0013] (1) Compared with the prior art, the free end of the locking screw is abutted against the connecting rod by rotating and tightening the locking screw, the sliding ring is locked and fixed with the connecting rod, the hook between the two sliding rings is positioned, the hook is prevented from moving again after the interval adjustment is completed, the hook does not need to be temporarily fixed by hand holding or other ways during the process of placing the hanging object, the storage efficiency of the hanging object is greatly improved, and the labor intensity of the workers is reduced.

[0014] (2) In addition, the diameter of the hanging hole is greater than the diameter of the connecting rod, so that the flexibility between the hook and the connecting rod is ensured, the hook can rotate freely around the connecting rod, the hanging object hung on the hook runs between the sprockets along with the transmission chain, in this process, the orientation of the connecting rod changes when the connecting rod passes through the sprocket, the hook is rotatably connected with the connecting rod, no matter how the orientation of the connecting rod changes, the hook rotates with the connecting rod under the action of gravity or the gravity of the hanging object, so that the hook always presents a falling state, thereby realizing the bearing in the vertical direction of the hanging object and preventing the hanging object from separating from the hook during the running process.

[0015] (3) The rolling ball or the rolling ball is arranged, so that the hook and the connecting rod are linearly contacted or point-contacted, the friction between the hook and the connecting rod is effectively reduced, and the rotation of the hook is more smooth. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to make the purpose, technical scheme and beneficial effects of the utility model more clear, the utility model provides the following drawings for description:

[0017] Figure 1 It is the overall schematic view of the interval-adjustable hook in the utility model embodiment one;

[0018] Figure 2 It is Figure 1Enlarged view at A1;

[0019] Figure 3 It is the sectional view of the locking piece in the embodiment one of the utility model, be used to show the positional relationship and the connection relationship of locking piece and connecting rod;

[0020] Figure 4 It is the partial sectional view of the hook in the embodiment two of the utility model;

[0021] Figure 5 It is the partial sectional view of the hook in the embodiment three of the utility model.

[0022] The signs in the drawing are as follows:

[0023] Frame 1, support plate 11, rotary system 2, chain wheel 21, guide wheel 211, steering wheel 212, transmission chain 22, connecting rod 3, hook 4, suspension hole 41, locking piece 5, sliding ring 501, locking hole 502, locking screw 503, containing groove 504, rotating shaft 505, roller 506, installation groove 507, ball 508. DETAILED DESCRIPTION

[0024] Embodiment one, as shown in Figures 1-3 .

[0025] A hook with adjustable spacing, comprising frame 1 and rotary system 2 installed on both sides of frame 1, frame 1 is a square frame structure, which is stable in structure and has good load capacity.

[0026] Rotary system 2 includes multiple chain wheels 21 distributed on the side of frame 1 and transmission chain 22 meshing with chain wheels 21, wherein transmission chain 22 is bent multiple times. Chain wheels 21 are distributed in a rectangular shape as a whole, and chain wheels 21 include guide wheels 211 at the four corners, and multiple steering wheels 212 are distributed in the high-low staggered manner inside. In this embodiment, the steering wheels are distributed in a "W" shape, and the steering wheels 212 include three upper steering wheels and two lower steering wheels, wherein the lower steering wheels are at the same height as the bottom guide wheels 211, and the three upper steering wheels are at the same height and are all located below the top guide wheels 211. In this embodiment, the lower steering wheels are driven to rotate by the rotary motor, thereby making the whole rotary system 2 run.

[0027] Multiple support plates 11 are fixedly connected on the inner side of frame 1 by welding, and support plates 11 correspond to chain wheels 21 one by one, and the two are rotationally connected by rotating shafts, which is prior art and will not be described again.

[0028] The connecting rods 3 are rotatably connected with the hooks 4. In the embodiment, two hooks 4 are arranged on each connecting rod 3. The upper portion of each hook 4 is provided with a circular suspension hole 41. The diameter of the suspension hole 41 is larger than the diameter of the connecting rod 3, so as to ensure the flexibility between the hook 4 and the connecting rod 3, and enable the hook 4 to freely rotate around the connecting rod 3. The suspension objects such as the reel and the rubber roller are suspended between the two hooks 4.

[0029] It is worth noting that, in actual operation, the suspension objects suspended on the hooks 4 move around the sprockets 21 along with the transmission chains 23. In this process, the orientation of the connecting rod 3 changes when it passes through the sprockets 21. By rotatably connecting the hook 4 with the connecting rod 3, the hook 4 rotates with the connecting rod 3 under the action of gravity or the gravity of the suspension objects, so that the hook 4 always presents a vertical state, thereby realizing the vertical bearing of the suspension objects and preventing the suspension objects from being separated from the hooks 4 during the movement.

[0030] Different types and models of suspension objects have different sizes, and therefore, the distance between the hooks 4 needs to be adjusted according to the size of the suspension objects. When the distance between the hooks 4 is adjusted to an appropriate distance, the hooks 4 need to be fixed. Figure 2 As shown in the figure, the hooks 4 are provided with locking members 5 on both sides. In the embodiment, the locking member 5 includes a sliding ring 501 which is sleeved on the outer periphery of the connecting rod 3 and is in sliding connection with the connecting rod 3. The inner diameter of the sliding ring 501 is the same as the diameter of the connecting rod 3. Figure 3 As shown in the figure, the outer side of the sliding ring 501 is provided with a locking hole 502 in the radial direction. The locking hole 502 penetrates the inner and outer sides of the sliding ring 501, that is, the depth of the locking hole 502 is equal to the ring width of the sliding ring 501. A locking screw 503 is threadedly connected in the locking hole 502. By tightening the locking screw 503, the free end of the locking screw 503 abuts against the connecting rod 3, so as to lock and fix the sliding ring 501 with the connecting rod 3, thereby limiting the hooks 4 between the two sliding rings 501, preventing the hooks 4 from moving again after the distance adjustment is completed, and placing the suspension objects without temporarily fixing the hooks 4 by hand or other ways, which greatly improves the storage efficiency of the suspension objects and reduces the labor intensity of the workers. Embodiment

[0031] The difference between the embodiment and the first embodiment is that, in the embodiment, the hooks 4 are rotatably connected with the connecting rods 3 by means of the sliding rings 501 and the locking screws 503. Figure 4As shown, the side of the suspension hole 41 is provided with an annular accommodating groove 504, the accommodating groove 504 is concentric with the suspension hole 41, the accommodating groove 504 is located at the central position inside the hook 4 and the width of the accommodating groove 504 is smaller than the thickness of the hook 4, a plurality of rotating shafts 505 are arranged between the two sides of the accommodating groove 504 in the axial direction, the two ends of the rotating shaft 505 are fixedly connected with the side wall of the accommodating groove 504 by welding, the extension direction of the rotating shaft 505 is consistent with the width direction of the accommodating groove 504, the rotating shaft 505 is rotatably connected with a roller 506, the roller 506 is in gap with the accommodating groove 504, and the roller 506 is in line contact with the outer surface of the connecting rod 3.

[0032] The hook 4 and the connecting rod 3 are in line contact through the roller 506, compared with the surface contact in the first embodiment, on the one hand, the friction between the hook 4 and the connecting rod 3 can be effectively reduced, so that the rotation of the hook 4 is more smooth, on the other hand, dust and granular debris are not easy to accumulate, which can effectively prevent the hook 4 and the connecting rod 3 from being stuck due to debris. Embodiment

[0033] The difference between the embodiment and the first embodiment is that, in the embodiment, as shown, Figure 5 A plurality of spherical mounting grooves 507 are arranged on the side wall of the suspension hole 41 in the circumferential direction, a ball 508 is rotatably connected in the spherical mounting groove 507, and the ball 508 is in point contact with the outer surface of the connecting rod 3.

[0034] The hook 4 and the connecting rod 3 are in point contact through the ball 508, compared with the surface contact between the hook 4 and the connecting rod 3 in the first embodiment, the point contact can effectively reduce the friction between the hook 4 and the connecting rod 3, so that the hook 4 can more easily rotate with the connecting rod 3.

[0035] Finally, it should be pointed out that the above preferred embodiments are only used to illustrate the technical scheme of the present application and are not limiting, although the present application has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present application.

Claims

1. A pitch adjustable hook, characterized by, The rotary system comprises a plurality of sprocket wheels distributed on the side of the frame and a transmission chain engaged with the sprocket wheels, the transmission chain is bent in multiple ways, the sprocket wheel comprises a guide wheel at the four corners, a plurality of steering wheels are distributed in the inside of the sprocket wheel in staggered manner, a connecting rod is arranged between the transmission chains, a plurality of connecting rods are uniformly distributed on the transmission chain, a hook is rotatably connected on the connecting rod, and a locking piece is arranged on both sides of the hook.

2. The adjustable spacing hook of claim 1, wherein, The upper part of the hook is provided with a hanging hole, and the diameter of the hanging hole is larger than the diameter of the connecting rod.

3. The adjustable spacing hook of claim 2, wherein, The locking piece comprises a sliding ring sleeved on the outer periphery of the connecting rod and in sliding connection with the connecting rod, the inner diameter of the sliding ring is the same as the diameter of the connecting rod, a locking hole is radially formed on the outer side surface of the sliding ring, the locking hole penetrates the inner and outer side surfaces of the sliding ring, a locking screw is threadedly connected in the locking hole, and the free end of the locking screw is abutted against the connecting rod by screwing the locking screw.

4. The adjustable spacing hook of claim 3, wherein, The side of the hanging hole is provided with an annular accommodating groove, the accommodating groove is concentric with the hanging hole, the accommodating groove is located at the central position inside the hook, the width of the accommodating groove is smaller than the thickness of the hook, a plurality of rotating shafts are arranged between the two sides of the accommodating groove in the axial direction, a roller is rotatably connected on the rotating shaft, a gap is left between the roller and the accommodating groove, and the roller is in line contact with the outer surface of the connecting rod.

5. The adjustable spacing hook of claim 3, wherein, A plurality of spherical mounting grooves are formed on the side wall of the hanging hole in the circumferential direction, a ball bearing is rotatably connected in the spherical mounting groove, and the ball bearing is in point contact with the outer surface of the connecting rod.

6. An adjustable spacing hook according to claim 4 or 5, wherein, A plurality of support plates are fixedly connected on the inner side of the frame, the support plates are in one-to-one correspondence with the sprocket wheels, and the support plates and the sprocket wheels are rotatably connected through rotating shafts.

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