Hanging belt anti-abrasion device and hanging belt

Abstract

The utility model relates to the technical field of lifting appliances, and provides a lifting belt anti-abrasion device and a lifting belt, and the lifting belt anti-abrasion device comprises a flexible base plate, the limiting clamping plates are arranged on one face of the flexible base plate, the at least two limiting clamping plates are distributed in the length direction of the flexible base plate at intervals, and the limiting clamping plates comprise the first clamping plate and the second clamping plate; the first clamping plate is connected with the flexible base plate, one end, in the width direction of the flexible base plate, of the first clamping plate is connected with the corresponding end of the second clamping plate in a swinging mode, and the other end, in the width direction of the flexible base plate, of the first clamping plate is detachably connected with the corresponding end of the second clamping plate. According to the utility model, the technical problems that in the prior art, the hoisting belt can rub and tear the edge of a hoisted object, so that the local abrasion of the hoisting belt is intensified, and the risk and cost of hoisting operation are increased can be solved.

Description

Technical Field

[0001] This utility model relates to the field of lifting equipment technology, and in particular to a sling anti-wear device and a sling. Background Technology

[0002] Slings are a commonly used belt-shaped lifting tool. When lifting objects, the sling is first wrapped around the outside of the object to be lifted, or the sling is passed through a hole in the object, and then the sling is connected to the hook, which can then move the object. However, during the lifting process, the sling inevitably rubs and tears against the edge of the object, causing the wear rate of the corresponding area of ​​the sling to be much higher than that of the rest of the area. This leads to a significant decrease in the load-bearing capacity of the entire sling (the bucket effect). In order to avoid the sling breaking from these severely worn areas and causing lifting safety accidents, workers have to discard or replace the entire sling before the rest of the sling has reached its lifespan limit. However, this practice not only fails to make full use of the sling's lifespan, but also increases the cost of lifting operations. Utility Model Content

[0003] The purpose of this invention is to overcome the technical problem in the prior art that the sling will rub and tear against the edge of the suspended object, resulting in increased local wear of the sling and thus increasing the risk and cost of the hoisting operation, and to provide a sling anti-wear device and sling.

[0004] In a first aspect, the present invention provides a sling anti-wear device, comprising:

[0005] Flexible pad;

[0006] A limiting plate is disposed on one side of a flexible pad, and at least two limiting plates are distributed at intervals along the length direction of the flexible pad. The limiting plate includes a first plate and a second plate.

[0007] The first card plate is connected to the flexible pad. One end of the first card plate along the width direction of the flexible pad is oscillatingly connected to the corresponding end of the second card plate. The other end of the first card plate along the width direction of the flexible pad is detachably connected to the corresponding end of the second card plate.

[0008] When using slings to lift objects, the anti-wear device of this utility model can be secured to the side of the sling facing the object by using the limiting clamp. For example, the detachable ends of the first and second clamps can be separated, allowing the second clamp to swing freely relative to the first clamp, increasing the angle between the first and second clamps to facilitate the insertion of the sling. Then, the sling is placed between the first and second clamps, and the angle between the first and second clamps is reduced until the sling is clamped by the first and second clamps. Finally, the detachable ends of the first and second clamps are reconnected to each other, thus securing the limiting clamp to the sling.

[0009] Since the limiting plates are distributed on one side of the flexible pad, after the limiting plates are connected to the sling, the flexible pad will be located on one side of the sling. When lifting the load, the flexible pad is set facing the load, and the flexible pad will directly contact the load in the corresponding area instead of the sling. This avoids friction and tearing between the sling and the load, which would lead to increased local wear of the sling and thus increase the risk and cost of the lifting operation.

[0010] Furthermore, since this solution uses a first and second clamping plate to hold the sling in place, compared to some existing technologies that use fixed hole connections, this solution can flexibly adjust the position of the flexible pad to cope with the constantly changing positions of the sling and the load under different lifting conditions due to friction and tearing. For example, by disengaging the detachable connection between the first and second clamping plates and increasing the angle between them, the limiting plate can be adjusted in the length direction of the sling. After the limiting plate enters the predetermined position, the angle between the first and second clamping plates can be reduced, and the detachable connection between them can be restored to re-lock the position of the limiting plate.

[0011] Preferably, the side of the first card plate facing the first card plate is provided with a serrated structure, and / or, the side of the second card plate facing the first card plate is provided with a serrated structure.

[0012] This solution enables the first and second clamping plates to clamp the sling more securely, thereby preventing the limiting clamping plate and the flexible pad from slipping relative to the sling, which would prevent the flexible pad from directly contacting the load instead of the sling.

[0013] Preferably, the tooth shape of the serrated structure is triangular.

[0014] The triangular teeth can increase the depth of the serrated structure pressing into the sling when the first and second clamping plates clamp the sling, thereby further enhancing the connection effect between the limiting clamping plate and the sling and preventing the limiting clamping plate and the flexible pad from slipping relative to the sling.

[0015] Preferably, the flexible pad has toothed protrusions on the side facing away from the limiting plate, and at least two toothed protrusions are distributed along the length of the flexible pad, with a gap between adjacent toothed protrusions.

[0016] This design increases the friction between the flexible pad and the load, preventing the load from slipping relative to the flexible pad and slings, thus avoiding lifting safety accidents. Additionally, a gap is provided between adjacent toothed protrusions to prevent them from interfering with each other and hindering the bending of the flexible pad when it bends.

[0017] Preferably, the tooth-like protrusions are trapezoidal in shape.

[0018] This design sets the tooth shape of the toothed protrusions to a trapezoidal shape, with an included angle between the sidewalls of two adjacent toothed protrusions, which can serve as a gap between two adjacent toothed protrusions to prevent interference; while the side of the toothed protrusion facing away from the flexible pad remains flat, which can ensure good contact between the toothed protrusion and the suspended object.

[0019] Preferably, it also includes a latch, one end of which is oscillatingly connected to the first card plate, and the other end of which is provided with a limiting protrusion. The latch can oscillate relative to the first card plate, thereby causing the limiting protrusion to engage with the side of the second card plate away from the first card plate.

[0020] This solution uses a latch to fasten the first and second plates together, preventing them from accidentally coming loose and causing the limiting plate and flexible pad to fall off the sling. When it is necessary to remove or adjust the position of the limiting plate and flexible pad, simply swing the latch to disengage it from the second plate. Compared to other detachable connection methods, such as threaded connections, this solution is simpler and more convenient to operate.

[0021] Preferably, the flexible pad is detachably connected to the first card plate.

[0022] This solution allows for easy disassembly and replacement of flexible pads when they are damaged or when different specifications of flexible pads are required for different lifting conditions.

[0023] Preferably, the flexible pad is connected to the first clamping plate by screws.

[0024] This solution recommends one of the detachable connection methods between the flexible pad and the first clamping plate, which can ensure a reliable connection between the flexible pad and the first clamping plate.

[0025] In a second aspect, the present invention provides a sling, including a sling body, on which a sling anti-wear device of the present invention is connected.

[0026] The sling of this invention is equipped with the anti-wear device of this utility model. When lifting objects, the anti-wear device can prevent direct contact between the sling body and the object in the corresponding area, which helps to extend the service life of the sling body, reduce the replacement frequency of the sling body and the hardware procurement cost.

[0027] Preferably, the number of anti-wear devices on the sling is at least two, and the anti-wear devices are distributed at intervals along the length of the sling body.

[0028] This solution can simultaneously protect at least two areas on the sling body and is applicable to most lifting conditions, including concrete culverts, concrete slabs, steel components, and steel coils.

[0029] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0030] 1. This utility model provides a sling anti-wear device, which can connect a flexible pad to one side of the sling through a limiting plate. The flexible pad will replace the sling in direct contact with the suspended object in the corresponding area, thereby avoiding friction and tearing between the sling and the suspended object, which would lead to increased local wear of the sling and thus increase the risk and cost of the lifting operation.

[0031] Furthermore, since the first and second clamping plates in the limiting clamping plate adopt a swing connection and a detachable connection, the position of the limiting clamping plate along the sling in this utility model can be flexibly adjusted to cope with the situation where the position of the sling and the suspended object are constantly changing due to friction and tearing under different lifting conditions.

[0032] 2. This utility model provides a sling. By installing the anti-wear device of this utility model on the sling body, the anti-wear device can prevent direct contact between the sling body and the object being lifted in the corresponding area when lifting objects. This helps to extend the service life of the sling body, reduce the replacement frequency of the sling body and the hardware procurement cost. Attached Figure Description

[0033] Figure 1 This is a three-dimensional structural diagram of a sling anti-wear device according to the present invention. Figure 1 ;

[0034] Figure 2 This is a three-dimensional structural diagram of a sling anti-wear device according to the present invention. Figure 2 ;

[0035] Figure 3 This is a three-dimensional structural diagram of a sling anti-wear device according to the present invention. Figure 3 ;

[0036] Figure 4 This is a three-dimensional structural diagram of a sling anti-wear device according to the present invention. Figure 4 ;

[0037] Figure 5 This is a three-dimensional structural diagram of a sling according to the present invention;

[0038] Figure 6 This is a three-dimensional structural diagram of the connection state between the sling and the suspended object according to this utility model;

[0039] icon:

[0040] 1-Flexible pad; 11-Toothed protrusion;

[0041] 2-Limit plate; 21-First plate; 22-Second plate; 23-Swing joint; 24-Lock;

[0042] 3-Screw; 4-Sling body; 5-Lifted object. Detailed Implementation

[0043] The present invention will be further described in detail below with reference to experimental examples and specific embodiments. However, this should not be construed as limiting the scope of the above-mentioned subject matter of the present invention to the following embodiments; all technologies implemented based on the content of the present invention fall within the scope of the present invention.

[0044] Unless otherwise specified, the use of terms such as "upper," "lower," "left," "right," "center," "inner," and "outer" to indicate orientation or positional relationships in the description of specific embodiments of the present invention is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationship in which the product / equipment / device is typically placed during use. These terms are merely for the purpose of facilitating the description of the present invention or simplifying the description in specific embodiments, enabling those skilled in the art to quickly understand the solution, and do not indicate or imply that a particular device / component / element must have a specific orientation, or be constructed and operated in a specific positional relationship. Therefore, they should not be construed as limitations on the present invention.

[0045] Furthermore, the use of terms such as "horizontal," "vertical," "suspension," and "parallel" does not imply that the corresponding device / component / element must be absolutely horizontal, vertical, suspended, or parallel, but rather that it can be slightly tilted or have a deviation. For example, "horizontal" merely means that its direction is more horizontal relative to "vertical," not that the structure must be completely horizontal, but can be slightly tilted. Alternatively, it can be simplified to mean that the corresponding device / component / element, when set in a "horizontal," "vertical," "suspension," or "parallel" direction, can have an error / deviation of ±10% relative to the corresponding direction, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, and more preferably within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its function in the present invention.

[0046] Furthermore, the use of terms such as "first," "second," and "third" in terminology is merely for distinguishing descriptions of identical or similar components and should not be interpreted as emphasizing or implying the relative importance of a particular component.

[0047] Furthermore, in the description of the embodiments of the present invention, "several", "more than", and "a number of" represent at least two. The number can be any number, such as two, three, four, five, six, seven, eight, or nine, and can even exceed nine.

[0048] Furthermore, in the description of the technical solution of this invention, unless otherwise explicitly specified / limited / restricted, the terms "set up," "install," "connect," "link," "provided with," "laid out," and "arranged" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to common connection methods in the art, such as welding, riveting, bolting, and threaded connections. Such connections can be mechanical, electrical, or communication connections; they can be direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components.

[0049] Example 1

[0050] like Figures 1 to 4 As shown, a sling anti-wear device includes a flexible pad 1 and a limiting plate 2; the two sides of the flexible pad 1 along its thickness direction are surface A and surface B, wherein surface A is used to directly contact the suspended object 5, and at least two limiting plates 2 are distributed at intervals along the length direction of the flexible pad 1 on surface B.

[0051] The flexibility of the flexible pad 1 means that when the flexible pad 1 is connected to the sling body 4 via the limiting plate 2, if the sling body 4 bends, the flexible pad 1 can bend along with it. For example... Figures 4 to 5 As shown.

[0052] The limiting plate 2 includes a first plate 21 and a second plate 22 arranged sequentially along the thickness direction of the flexible pad 1. The first plate 21 is connected to surface B of the flexible pad 1. One end of the first plate 21 along the width direction of the flexible pad 1 is oscillatingly connected to the corresponding end of the second plate 22. The other end of the first plate 21 along the width direction of the flexible pad 1 is detachably connected to the corresponding end of the second plate 22. When the detachable connection is released, the first plate 21 can oscillate relative to the second plate 22 to increase the included angle between the first plate 21 and the second plate 22, for example... Figure 1 As shown, this allows the sling body 4 to be placed between the first clamping plate 21 and the second clamping plate 22; and when the detachable connection is in the connected state, the swing freedom of the first clamping plate 21 relative to the second clamping plate 22 is locked, for example... Figure 2 As shown, this allows it to be used to clamp the sling body 4.

[0053] exist Figures 1 to 3 The text also uses arrows to indicate the length and width directions of the flexible pad 1. Arrow X indicates the length direction of the flexible pad 1, and arrow Y indicates the width direction of the flexible pad 1. The thickness direction of the flexible pad 1 is perpendicular to both arrow X and arrow Y.

[0054] In an optional embodiment, the width of the flexible pad 1 is matched with the width of the sling body 4. For example, the width of the flexible pad 1 can be greater than or equal to the width of the sling body 4. The length of the flexible pad 1 is determined according to actual needs, preferably to cover the area where the sling body 4 and the edge of the suspended object 5 directly rub and tear.

[0055] In optional embodiments, the specific material of the flexible pad 1 includes, but is not limited to, wear-resistant rubber or polyurethane.

[0056] In optional embodiments, the swing joint 23 between the first locking plate 21 and the second locking plate 22 includes, but is not limited to, a single-axis swing joint 23 including one pivot, or a multi-axis compound swing joint 23 including at least two pivots, for example... Figures 1 to 2 The swing joint 23 shown.

[0057] In an optional embodiment, the axis of the pivot shaft in the swing joint 23 is preferably set along the length direction of the flexible pad 1, so as to facilitate the first clamping plate 21 and the second clamping plate 22 to clamp the sling body 4 from the side of the sling body 4.

[0058] In optional embodiments, the detachable connection between the first card plate 21 and the second card plate 22 may take the form of threaded connection, snap-fit ​​connection or tenon and mortise connection, among other things.

[0059] In optional implementations, such as Figures 1 to 2 As shown, the side of the first card plate 21 facing the first card plate 21 is provided with a serrated structure, and / or the side of the second card plate 22 facing the first card plate 21 is provided with a serrated structure.

[0060] In an optional embodiment, the teeth of the serrated structure are triangular. The specific shape of the triangle includes, but is not limited to, an equilateral triangle, an isosceles triangle, or a scalene triangle, and the edges of the triangular serrated structure may include rounded corners or chamfered corners.

[0061] In optional implementations, such as Figure 2 As shown, the flexible pad 1 has toothed protrusions 11 on the side opposite to the limiting plate 2 (i.e., side A). At least two toothed protrusions 11 are distributed along the length direction of the flexible pad 1, and there is a gap between two adjacent toothed protrusions 11.

[0062] In the above embodiments, there is a gap between two adjacent toothed protrusions 11. This can be achieved by distributing the toothed protrusions 11 at intervals along the length of the flexible pad 1, or by distributing the toothed protrusions 11 continuously along the length of the flexible pad 1, but by gradually decreasing the cross-sectional size of the toothed protrusions 11 along the length of the flexible pad 1 away from the flexible pad 1.

[0063] In the above embodiments, the tooth shape of the toothed protrusion 11 is trapezoidal. The specific shape of the trapezoid includes, but is not limited to, a common trapezoid, an isosceles trapezoid, or a right trapezoid, and the edges of the trapezoidal toothed protrusion 11 may include rounded corners or chamfered corners.

[0064] In an optional embodiment, the side of the flexible pad 1 facing the limiting plate 2 (i.e., side B) is designed to be smooth in order to reduce stress concentration on the sling body 4.

[0065] In an optional embodiment, a latch 24 is further included. One end of the latch 24 is oscillatingly connected to the first locking plate 21, and the other end of the latch 24 is provided with a limiting protrusion. The latch 24 can oscillate relative to the first locking plate 21, thereby causing the limiting protrusion to engage with the side of the second locking plate 22 away from the first locking plate 21. For example Figures 1 to 2 As shown, the latch 24 is approximately L-shaped, with one end hinged to the first locking plate 21 and the other end serving as a limiting protrusion. The distance from the limiting protrusion of the latch 24 to its hinged end matches the sum of the thicknesses of the first locking plate 21 and the second locking plate 22. Thus, when the second locking plate 22 swings to a state where it is in contact with the first locking plate 21, the latch can be swung to the desired position. Figure 2 The positions shown indicate that the first card plate 21 and the second card plate 22 are fastened together.

[0066] In an optional embodiment, the flexible pad 1 and the first card plate 21 are detachably connected.

[0067] In the above embodiment, the flexible pad 1 is connected to the first clamping plate 21 by screws 3, and the number of screws 3 can be one or more.

[0068] Example 2

[0069] like Figures 5 to 6 As shown, a sling includes a sling body 4, on which a sling anti-wear device as described in Embodiment 1 is connected.

[0070] In optional implementations, such as Figure 5 As shown, the number of anti-wear devices on the sling is at least two, and the anti-wear devices are distributed at intervals along the length of the sling body 4.

[0071] When it is necessary to use the slings of this embodiment to lift object 5, taking the case where object 5 is a concrete culvert as an example, such as... Figure 6 As shown, the sling body 4 will bend at a large angle at both ends of the concrete culvert and is prone to friction and tearing with the edge of the inner wall of the concrete culvert. Therefore, the positions of the two anti-wear devices of the sling can be adjusted to the edges of the two ends of the concrete culvert, so that they can directly contact the concrete culvert in these two areas instead of the sling body 4, thereby avoiding the sling body 4 being subjected to friction and tearing by the edge of the concrete culvert and the resulting reduction in the service life of the sling body 4.

[0072] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A harness wear-prevention device, characterized by, The utility model relates to a kind of lifting belt wear-preventing device, including: Flexible backing plate (1); Limiting batten (2), the limiting batten (2) is arranged in one side of the flexible backing plate (1), at least two limiting battens (2) are spaced along the length direction of the flexible backing plate (1), and the limiting batten (2) includes first batten (21) and second batten (22); The first batten (21) is connected with the flexible backing plate (1), and the first batten (21) is swing-connected with the corresponding end of the second batten (22) along one end of the width direction of the flexible backing plate (1), and the first batten (21) is detachably connected with the corresponding end of the second batten (22) along the other end of the width direction of the flexible backing plate (1).

2. A harness wear reducer as defined in claim 1, wherein The first batten (21) is provided with a sawtooth structure on one side of the first batten (21), and / or the second batten (22) is provided with a sawtooth structure on one side of the first batten (21).

3. A harness wear-preventing device according to claim 2, characterized in that The tooth shape of the sawtooth structure is triangular.

4. A harness wear reducer as defined in claim 1, wherein The side of the flexible backing plate (1) away from the limiting batten (2) is provided with a toothed protrusion (11), and at least two toothed protrusions (11) are distributed along the length direction of the flexible backing plate (1), and there is a gap between adjacent two toothed protrusions (11).

5. A harness wear reducer as defined in claim 4, wherein The tooth shape of the toothed protrusion (11) is trapezoidal.

6. A harness wear reducer as defined in any one of claims 1 to 5, wherein, It also includes a lock catch (24), one end of the lock catch (24) is swing-connected with the first batten (21), the other end of the lock catch (24) is provided with a limiting protrusion, and the lock catch (24) can swing relative to the first batten (21), so as to drive the limiting protrusion to be engaged on the side of the second batten (22) away from the first batten (21).

7. A harness wear reducer as defined in any one of claims 1 to 5, wherein The flexible backing plate (1) is detachably connected with the first batten (21).

8. A harness wear reducer as defined in claim 7, wherein The flexible backing plate (1) is connected with the first batten (21) by screw (3).

9. A harness comprising a harness body (4), characterized in that The lifting belt body (4) is connected with the lifting belt wear-preventing device as claimed in any one of claims 1 to 8.

10. A harness according to claim 9, wherein, The number of the lifting belt wear-preventing device is at least two, and the lifting belt wear-preventing devices are spaced along the length direction of the lifting belt body (4).

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