Anti-break device for U-shaped lifting ring of hoist chain

By designing a U-shaped lifting ring fracture prevention device for the hoist chain including U-shaped ring, elastic block and connecting rod, the problem of U-shaped lifting ring fracture is solved, and the effect of preventing fracture and reducing costs is achieved.

CN222729264UActive Publication Date: 2025-04-08JINCHUAN GROUP CO LTD +1
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Patent Information

Application Number
CN202421018862.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-11
Publication Date
2025-04-08
Estimated Expiration
2034-05-11

AI Technical Summary

Technical Problem

The U-shaped lifting ring is prone to break during the work of the hoist, affecting normal work and may cause safety accidents.

Method used

A U-shaped lifting ring cracking device for the hoist chain is designed, including a U-shaped ring, an elastic block and a connecting rod. The U-ring consists of an inner ring and an outer ring. The inner ring serves as the main focus ring when working, and the outer ring takes over when the inner ring breaks; the elastic block is driven by a screw to tighten the transported object in the inner ring to reduce the pressure on the inner ring; the connecting rod and the U-ring are cooperated through the limiting block and groove to avoid thread deformation.

Benefits of technology

It effectively prevents breakage of the U-shaped lifting ring, reduces the pressure on the inner ring, reduces the cost of the device, and only needs to replace the corresponding ring separately when the ring is damaged, saving replacement cost.

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Abstract

The utility model belongs to the field of mechanical engineering technology, and particularly relates to a U-shaped lifting ring anti-fracture device for a hoist chain, comprising an inner ring and an outer ring in a sliding connection, which can effectively prevent the transported object from falling off due to damage to the inner ring, and an elastic pressure block in the inner ring for pressing the transported object so that it will not shake in the inner ring, while a connecting rod is slidably connected to the top of the inner ring and the outer ring, and a limit block is provided on the connecting rod, which cooperates with a groove provided on the top of the outer ring and a spring on the connecting rod, so that the connecting rod and the inner ring and the outer ring are relatively fixedly connected.
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Description

Technical Field

[0001] The utility model belongs to the technical field of mechanical engineering, and particularly relates to a U-shaped lifting ring anti-fracture device for a lifting machine chain. Background Art

[0002] In the working process of the hoist, the U-shaped lifting ring plays a vital role. However, due to the heavy weight and harsh working environment during use, the U-shaped lifting ring is prone to breakage, which not only affects the normal operation of the hoist, but also may cause safety accidents. Therefore, how to effectively prevent the breakage of the U-shaped lifting ring and improve the safety of the hoist has become an urgent problem to be solved in this field. Utility Model Content

[0003] The purpose of the utility model is to provide a U-shaped lifting ring anti-fracture device for a hoist chain to solve the problems existing in the prior art. To achieve the above-mentioned invention purpose, the technical solution adopted by the utility model is:

[0004] The U-shaped lifting ring anti-breakage device of the hoist chain includes a U-shaped ring, an elastic pressure block, and a connecting rod; the U-shaped ring includes an outer ring and an inner ring that are slidably connected; the slidable connection at both ends of the U-shaped ring is used to connect the connecting rod of the hoist, and the elastic pressure block is slidably connected inside the inner ring, and the elastic pressure block is used to limit the transported objects inside the U-shaped ring.

[0005] Furthermore, the outer ring includes two vertical segments 1 and an annular segment 1, one end of the two vertical segments 1 is respectively fixedly connected to one end of the annular segment 1, and a slide groove 1 is respectively provided on one adjacent side of the two vertical segments 1; the inner ring includes two vertical segments 2 and annular segment 2, one side of the two vertical segments 2 away from each other is respectively provided with a slider slidably connected to the slide groove 1, and one end of the two vertical segments 2 is respectively fixedly connected to one end of the annular segment 2.

[0006] Furthermore, a fixing block 1 is symmetrically provided at the other end of the two vertical sections 1, a limiting hole 1 is provided at the center of the fixing block 1, a through groove 1 is provided on the fixing block 1, and the through groove 1 is connected to the limiting hole 1; a fixing block 2 is symmetrically provided at the other end of the two vertical sections 2, a limiting hole 2 is provided at the center of the fixing block 2, the slidably connected vertical section 1 and the corresponding fixing block 1 and fixing block 2 on the vertical section 2 are connected to each other, a through groove 2 is provided on the fixing block 2, and the through groove 2 is connected to the through groove 1; the limiting hole 1 and the limiting hole 2 are located on the same axis, and the connecting rod slidably cooperates with the two limiting holes 1 and the two limiting holes 2; each adjacent side of the two vertical sections 2 is provided with a sliding groove 2 slidably connected to the elastic pressure block.

[0007] Furthermore, a limit block is provided at one end of the connecting rod, and a ring is sleeved on the connecting rod, wherein a side of one of the fixed blocks away from the other fixed block is provided with a groove adapted to the limit block, the groove is connected to the limit hole, and the other fixed block is located between the fixed block and the ring.

[0008] Furthermore, a limiting plate is provided at the other end of the connecting rod, a turning handle is provided on the limiting plate, a spring is sleeved on the connecting rod, one end of the spring is fixedly connected to the limiting plate, and the other end is connected to the ring.

[0009] Furthermore, the elastic pressure block includes a support column, two sliders are provided at both ends of the support column, and one adjacent side of the two vertical sections is provided with a slide groove two that is slidably connected to the two sliders; the top of the support column is provided with two grooves that cooperate with the screw rod, and the bottom is provided with an elastic block for pressing the transported object.

[0010] Furthermore, a threaded through hole is provided in the middle portion of the connecting rod, and the threaded through hole is threadedly connected to a threaded portion on a screw rod. One end of the screw rod is connected to the elastic pressure block, and the other end is fixedly connected to the second turning handle.

[0011] Furthermore, the connecting rod is provided with recessed portions adapted to fit the hoist hook at both ends of the threaded through hole.

[0012] The utility model has the following beneficial effects:

[0013] 1. The U-shaped ring is set as a combination of an inner ring and an outer ring. The inner ring is the main force ring during operation. When the inner ring is subjected to excessive force and breaks, the outer ring can take over the work of the inner ring as a preventive measure. The inner and outer rings are slidably connected. When one ring is damaged, only the corresponding ring needs to be replaced separately, thereby saving costs.

[0014] 2. An elastic pressure block is provided on the inner ring of the U-shaped ring. The elastic pressure block is driven to move toward the inner ring segment by rotating the screw, thereby pressing the transported object (usually a hook) in the ring segment so that it will not shake in the ring segment, thereby reducing the pressure on the inner ring and preventing damage to the inner ring.

[0015] 3. Since the device itself is in a working environment with relatively high force intensity, and the conventional connection between the connecting rod and the inner and outer rings is a threaded connection, the thread itself is easily deformed and damaged. In the present application, the connecting rod and the U-shaped ring are matched with a limit block and a groove. When pressure is applied by a spring, the limit block is limited in the groove to achieve the connection between the connecting rod and the U-shaped ring. This connection method does not need to consider the deformation of the thread, that is, even if the limit block and the groove have a certain deformation, it can be used normally, thereby reducing the cost of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall device;

[0017] Figure 2 It is a schematic diagram of the outer ring;

[0018] Figure 3 yes Figure 2 Enlarged view of point B in the middle;

[0019] Figure 4 It is a schematic diagram of the inner ring;

[0020] Figure 5 yes Figure 4 Enlarged view of point A in the middle;

[0021] Figure 6 It is a schematic diagram of the connecting rod;

[0022] Figure 7 yes Figure 6 Enlarged view of point C in the middle;

[0023] Figure 8 It is a schematic diagram of the elastic pressure block. DETAILED DESCRIPTION

[0024] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Unless otherwise specified, the technical means used in the embodiments are conventional means well known to those skilled in the art.

[0025] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" 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 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 should not be understood as a limitation on the present invention.

[0026] like Figure 1-8 As shown, the U-shaped lifting ring anti-fracture device of the hoist chain includes a U-shaped ring, an elastic pressure block 5, and a connecting rod 3; the U-shaped ring includes an outer ring 1 and an inner ring 2 that are slidably connected; the two ends of the U-shaped ring are slidably connected to the connecting rod 3 of the hoist, and the inner ring 2 is slidably connected to the elastic pressure block 5, and the elastic pressure block 5 is used to limit the transported object in the U-shaped ring. The hoist hook is connected to the connecting rod 3 to lift the entire device; the transported object is generally a hook, and the elastic pressure block 5 can slide up and down. The screw 403 is threadedly connected to the connecting rod 3 and can push the elastic pressure block 5 when it rotates downward. The elastic pressure block 5 will press and fix the hook to prevent it from shaking, thereby reducing the stress on the U-shaped ring.

[0027] like Figure 2 , 4 As shown, the outer ring 1 includes two vertical segments 101 and an annular segment 102, one end of the two vertical segments 101 is respectively fixedly connected to one end of the annular segment 102, and a slide groove 103 is respectively provided on one side adjacent to the two vertical segments 101; the inner ring 2 includes two vertical segments 201 201 and annular segment 202, one side of the two vertical segments 201 away from each other is respectively provided with a slider 204 slidably connected to the slide groove 103, and one end of the two vertical segments 201 is respectively fixedly connected to one end of the annular segment 202.

[0028] like Figure 2-7As shown, the other ends of the two vertical sections 101 are symmetrically provided with a fixing block 104, the center of the fixing block 104 is provided with a limiting hole 1043, the fixing block 104 is provided with a through groove 1041 penetrating the fixing block 104, and the through groove 1041 is connected to the limiting hole 1043; the other ends of the two vertical sections 201 are symmetrically provided with a fixing block 203, the center of the fixing block 203 is provided with a limiting hole 2032, the vertical section 101 and the corresponding vertical section 201 on the sliding connection The fixed block 104 and the fixed block 203 are connected to each other, and the fixed block 203 is provided with a through groove 2031 penetrating the fixed block 203, and the through groove 2031 is connected to the through groove 1041; the limiting hole 1043 and the limiting hole 2032 are located on the same axis, and the connecting rod 3 is slidably matched with the two limiting holes 1043 and the two limiting holes 2032; the adjacent sides of the two vertical sections 201 are each provided with a sliding groove 205 slidably connected to the elastic pressure block 5. A stop block 306 is provided at one end of the connecting rod 3, and a collar 304 is sleeved on the connecting rod 3, wherein a groove 1042 adapted to the stop block is provided on a side of one of the fixing blocks 104 away from the other fixing block 104, and the groove 1042 is connected to the stop hole 1043, and the other fixing block 104 is located between the fixing block 104 and the collar 304. A stop plate 302 is provided at the other end of the connecting rod 3, and a turning handle 301 is provided on the stop plate, and a spring 303 is sleeved on the connecting rod 3, and one end of the spring 303 is fixedly connected to the stop plate 302, and the other end is connected to the collar 304. The connecting rod 3 is inserted from the outside of the fixing block 104 without the groove 1042 to the fixing block 104 with the groove 1042, and passes through the two fixing blocks 203 in the middle, wherein the limit block 306 passes through the through groove 1041 and the through groove 2031. Therefore, each through groove 1041 and the through groove 2031 on the two fixing blocks 104 and the two fixing blocks 203 are located on a horizontal line to facilitate the passing of the limit block 306. When the limit block 306 completely passes through each through groove 1041 and the through groove 2031, the entire connecting rod 3 is rotated so that the limit block 306 can be screwed into the groove 1042. Figure 1 As shown, the spring 303 will push the collar 304 to the left, and the collar 304 is blocked by the fixed block 104, so the limiting plate 302 and the collar 304 will compress the spring 303, so that the entire connecting rod 3 will tend to move to the right, and finally the limiting block 306 will be limited in the groove 1042. The final state is that the connecting rod 3 and the U-shaped ring are fixed to each other.

[0029] like Figure 1 , 8As shown, the elastic pressure block 5 includes a support column 501, and two sliders 503 are provided at both ends of the support column 501, and one side adjacent to the two vertical sections 201 is provided with a slide groove 205 slidably connected to the slider 503; the top of the support column 501 is provided with a groove 502 that cooperates with the screw 403, and the bottom is provided with an elastic block 504 for clamping the transported object, and the bottom of the elastic block 504 is provided with a depression, which makes the elastic block 504 more suitable for the transported object such as the hook. The elastic block 504 is made of elastic material, which can make its clamping effect better.

[0030] like Figure 1 , 6 As shown, a threaded through hole 305 is provided in the middle portion of the connecting rod 3, and the threaded through hole 305 is threadedly connected to the threaded portion 402 on the screw rod 403. One end of the screw rod 403 is connected to the elastic pressing block 5, and the other end is fixedly connected to the second turning handle 401.

[0031] like Figure 6 As shown, the connecting rod 3 is provided with a recessed portion 307 adapted to the hoist hook at both ends of the threaded through hole 305. It should be noted that when the device is in use, the recessed portion 307 faces the ground, and this arrangement enables it to adapt to the hoist hook in use.

[0032] When the whole device is used, first adjust the direction of the connecting rod 3 so that the limit block 306 is aligned with the through slot 1 1041 and the through slot 2 2031, and then Figure 1 As shown, the connecting rod 3 is inserted into the limiting hole 1043 and the limiting hole 2032 from right to left. After passing through the limiting hole 1043 at the end, the limiting block 306 on it is rotated to align with the groove 1042 and then no force is applied to it. Under the elastic force of the spring 303, the entire connecting rod 3 will tend to move to the right, and the limiting block 306 will be limited in the groove 1042, thereby fixing the connecting rod 3 and the U-shaped ring. Then, the transported object (hook) is placed on the annular segment 202 of the inner ring 2, the screw 403 is screwed into the threaded through hole 305, and the rotation continues to push the elastic pressing block 5 downward to press the transported object, and finally the hoist hook is connected to the concave portion 307 of the connecting rod 3, and the hoist works to lift the transported object.

[0033] The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations, modifications, and substitutions made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. The U-shaped lifting ring anti-breakage device of the hoist chain is characterized by: It comprises a U-shaped ring, an elastic pressure block (5), and a connecting rod (3); the U-shaped ring comprises an outer ring (1) and an inner ring (2) which are slidably connected; the slidable connections at both ends of the U-shaped ring are used to connect the connecting rod (3) of the elevator, the inner ring (2) is slidably connected to the elastic pressure block (5), and the elastic pressure block (5) is used to limit the transported objects in the U-shaped ring.

2. The U-shaped lifting ring anti-fracture device for the hoist chain according to claim 1 is characterized in that: The outer ring (1) comprises two vertical segments (101) and an annular segment (102), one end of each of the two vertical segments (101) is fixedly connected to one end of each of the annular segment (102), and a slide groove (103) is provided on each adjacent side of the two vertical segments (101); the inner ring (2) comprises two vertical segments (201) and annular segment (202), one side of each of the two vertical segments (201) away from each other is provided with a slider (204) slidably connected to the slide groove (103), and one end of each of the two vertical segments (201) is fixedly connected to one end of each of the annular segment (202).

3. The U-shaped lifting ring anti-fracture device for the hoist chain according to claim 2 is characterized in that: The other ends of the two vertical sections (101) are symmetrically provided with a fixing block (104), the center of the fixing block (104) is provided with a limiting hole (1043), the fixing block (104) is provided with a through groove (1041) penetrating the fixing block (104), and the through groove (1041) is connected to the limiting hole (1043); the other ends of the two vertical sections (201) are symmetrically provided with a fixing block (203), the center of the fixing block (203) is provided with a limiting hole (2032), and the corresponding fixing blocks on the vertical sections (101) and the vertical sections (201) connected in a sliding manner are provided. The fixed block 1 (104) and the fixed block 2 (203) are connected to each other, and the fixed block 2 (203) is provided with a through groove 2 (2031) penetrating the fixed block 2 (203), and the through groove 2 (2031) is connected to the through groove 1 (1041); the limiting hole 1 (1043) and the limiting hole 2 (2032) are located on the same axis, and the connecting rod (3) is slidably matched with the two limiting holes 1 (1043) and the two limiting holes 2 (2032); and one side adjacent to the two vertical sections 2 (201) is respectively provided with a sliding groove 2 (205) slidably connected to the elastic pressure block (5).

4. The U-shaped lifting ring anti-fracture device for the hoist chain according to claim 3 is characterized in that: A limit block (306) is provided at one end of the connecting rod (3), and a collar (304) is sleeved on the connecting rod (3), wherein a surface of one of the fixing blocks (104) away from the other fixing block (104) is provided with a groove (1042) adapted to the limit block, and the groove (1042) is connected to the limit hole (1043), and the other fixing block (104) is located between the fixing block (104) and the collar (304).

5. The U-shaped lifting ring anti-fracture device for the hoist chain according to claim 4 is characterized in that: The other end of the connecting rod (3) is provided with a limiting plate (302), the limiting plate is provided with a turning handle (301), a spring (303) is sleeved on the connecting rod (3), one end of the spring (303) is fixedly connected to the limiting plate (302), and the other end is connected to the sleeve ring (304).

6. The U-shaped lifting ring anti-fracture device for the hoist chain according to claim 3 is characterized in that: The elastic pressure block (5) comprises a support column (501), two ends of which are provided with two sliding blocks (503), and one side adjacent to each of the two vertical sections (201) is provided with a two sliding grooves (205) slidably connected to the two sliding blocks (503); the top of the support column (501) is provided with two grooves (502) cooperating with the screw rod (403), and the bottom is provided with an elastic block (504) for pressing the transported object.

7. The U-shaped lifting ring anti-fracture device for the hoist chain according to claim 1 is characterized in that: A threaded through hole (305) is provided in the middle portion of the connecting rod (3), and the threaded through hole (305) is threadedly connected to a threaded portion (402) on a screw rod (403). One end of the screw rod (403) is connected to the elastic pressure block (5), and the other end is fixedly connected to the second turning handle (401).

8. The U-shaped lifting ring anti-fracture device for the hoist chain according to claim 7 is characterized in that: The connecting rod (3) is provided with recessed portions (307) adapted to fit the lifting hook at both ends of the threaded through hole (305).