Lifting sling of crane

Abstract

The utility model relates to the technical field of slings, and discloses a lifting sling of a crane, which comprises a lifting ring, a sling and a mounting component, the lifting ring comprises a sleeving part, and two opposite ends of the sleeving part are respectively provided with an extension part extending towards the interior far away from the sleeving part; an inlet / outlet is defined between the two extension parts; the sling comprises a connecting piece provided with a first connecting part, and the first connecting part is configured to be capable of allowing the free end of any extension part to penetrate through so that the sleeving part can be sleeved with the first connecting part; the mounting assembly comprises a mounting seat; the two extension parts are detachably connected to the mounting seat; and when the two extension parts are connected to the mounting seat, the inlet and outlet is blocked by the mounting seat. According to the lifting device, the lifting ring is arranged to be of the annular non-closed structure, the lifting ring is arranged to be detachably connected to the mounting base, the sling used for being arranged on the lifting ring in a sleeving mode can be conveniently disassembled and assembled, and therefore operation of replacing, increasing or decreasing the sling is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of sling tools, and more particularly to a lifting sling tool for a crane. Background Art

[0002] The content of this part only provides background information related to the utility model, which may not constitute the prior art.

[0003] When a crane performs a lifting task, it usually uses a lifting sling tool to connect itself to the object to be lifted.

[0004] Known lifting sling tools generally include a lifting ring and a sling sleeved on the lifting ring. Among them, according to the number of slings sleeved on the lifting ring, the lifting sling tool can be further divided into a single-leg sling tool and a multi-leg sling tool (such as common three-leg sling tools and four-leg sling tools).

[0005] However, whether it is a single-leg sling tool or a multi-leg sling tool, in order to prevent the sling sleeved on the lifting ring from slipping off the lifting ring during the lifting process, the lifting ring used in the known lifting sling tool generally has an annular closed structure. For such a design, it is not convenient to replace, add or reduce the slings on the lifting ring. Summary of the Utility Model

[0006] In view of this, the purpose of the utility model is to provide a lifting sling tool for a crane, hoping to be able to disassemble and assemble the sling sleeved on the lifting ring conveniently.

[0007] The purpose of the utility model is achieved through the following technical solutions:

[0008] The utility model discloses a lifting sling tool for a crane, comprising:

[0009] A lifting ring, including a sleeving part; the sleeving part has an annular non-closed structure, the sleeving part has opposite ends, and both opposite ends of the sleeving part are provided with extension parts extending away from the inside of the sleeving part; an inlet and outlet is defined between the two extension parts, and the inlet and outlet is communicated with the inside of the sleeving part;

[0010] A sling, including a connecting piece; the connecting piece is provided with a first connecting part, the first connecting part has an annular closed structure, and the first connecting part is configured to be able to be penetrated by the free end of any one of the extension parts, so that the first connecting part is sleeved on the sleeving part;

[0011] An installation component, including an installation seat; the two extension parts are detachably connected to the installation seat; wherein, when the two extension parts are connected to the installation seat, the inlet and outlet is blocked by the installation seat.

[0012] Further, connecting holes are provided on both of the two extension parts;

[0013] A mounting groove adapted to receive the two extension parts is provided at the bottom of the mounting seat, and the mounting groove has an opening for the extension parts to enter and exit; a positioning hole penetrating through the mounting groove is provided on the mounting seat, and when the two extension parts are received in the mounting groove, the positioning hole is aligned with the connecting holes on the two extension parts;

[0014] The mounting assembly further includes a fastener for passing through the aligned positioning hole and the connecting holes on the two extension parts.

[0015] Further, the mounting grooves correspond to the extension parts one by one, and each mounting groove has a top wall and two opposite side walls;

[0016] Wherein, when the extension part is received in the corresponding mounting groove, the free end of the extension part contacts the top wall of the corresponding mounting groove, and the outer circumferential wall of the extension part contacts the two opposite side walls of the corresponding mounting groove simultaneously.

[0017] Further, the mounting groove is a downwardly open groove body, and the front and rear sides of the mounting groove are in an open structure.

[0018] Further, the fastener includes a locking screw configured to pass through the aligned positioning hole and the connecting holes on the two extension parts, and locking nuts are threadedly connected to both ends of the locking screw.

[0019] Further, the sling further includes a connecting seat, a rotating seat and a hook;

[0020] The connecting seat is connected to the connecting member, the rotating seat is rotatably arranged on the connecting seat, and the rotating seat is connected to the hook.

[0021] Further, the connecting seat defines a limiting groove with an opening, and a detachable limiting member is provided on the connecting seat and penetrates through the limiting groove;

[0022] One end of the connecting member away from the first connecting portion is provided with a second connecting portion, and the second connecting portion is in a ring-shaped closed structure;

[0023] The second connecting portion is received in the limiting groove, and the limiting member penetrates through the second connecting portion.

[0024] Further, a locking portion is provided on the connecting seat, a positioning portion capable of being aligned with the locking portion is provided on the rotating seat, and the locking portion and the positioning portion are detachably connected.

[0025] Furthermore, a lifting member is provided on the mounting base.

[0026] Furthermore, the two extension parts are opposite and parallel to each other, and the two extension parts and the sleeved part are of an integral structure.

[0027] The technical solution of the embodiment of the present utility model has at least the following advantages and beneficial effects:

[0028] By setting the sling ring of the lifting sling disclosed by the present utility model as a non-closed structure in a ring shape and setting the sling ring to be detachably connected to the mounting base, the sling sleeved on the sling ring can be disassembled and assembled more conveniently, which is beneficial to performing operations such as replacing, adding or reducing the sling. Description of the Drawings

[0029] Figure 1 It is a schematic structural diagram of the lifting sling provided by the embodiment of the present utility model;

[0030] Figure 2 It is a schematic structural diagram of the sling ring provided by the embodiment of the present utility model;

[0031] Figure 3 It is a schematic structural diagram of a single sling provided by the embodiment of the present utility model;

[0032] Figure 4 It is a schematic structural diagram of the mounting assembly provided by the embodiment of the present utility model;

[0033] Figure 5 is Figure 4 an exploded view of the structural diagram of the mounting assembly shown in ;

[0034] Figure 6 is Figure 1 a partial enlarged view of the local structure at A in ;

[0035] Figure 7 is Figure 3 a partial enlarged view of the local structure at B in ;

[0036] Figure 8 It is a schematic structural diagram of the connecting seat, the rotating seat and the hook provided by the embodiment of the present utility model.

[0037] Reference Signs: 10 - sling ring, 11 - sleeved part, 12 - extension part, 13 - connecting hole, 20 - sling, 21 - connecting piece, 211 - first connecting part, 212 - second connecting part, 22 - connecting seat, 221 - locking part, 23 - rotating seat, 231 - positioning part, 24 - hook, 25 - limiting groove, 26 - limiting piece, 27 - locking pin, 30 - mounting assembly, 31 - mounting base, 32 - mounting groove, 33 - positioning hole, 34 - fastening piece, 341 - locking screw, 342 - locking nut, 35 - lifting member. Detailed implementation manners

[0038] To make the objectives, technical solutions and advantages of the present utility model clearer, the technical solutions of the present utility model will be clearly and completely described below in conjunction with the detailed implementation manners. The same reference numerals in the drawings represent the same components. It should be noted that the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0039] Compared with the embodiments shown in the drawings, the feasible implementation manners within the protection scope of the present utility model may have fewer components, have other components not shown in the drawings, different components, differently arranged components or differently connected components, etc. In addition, two or more components in the drawings may be implemented in a single component, or a single component shown in the drawings may be implemented as multiple separate components.

[0040] An embodiment of the present utility model discloses a lifting sling for a crane (hereinafter simply referred to as "lifting sling" for convenience of description). As Figure 1 shown, it shows an exemplary structural schematic diagram of the lifting sling disclosed in the embodiment of the present utility model. Generally, the lifting sling may include a lifting ring 10, a sling 20 and a mounting assembly 30. It should be noted that although Figure 1 only shows a lifting sling with three slings 20, the number of slings 20 of the lifting sling disclosed in the embodiment of the present utility model may be more or less, which is not limited herein.

[0041] In the embodiment of the present utility model, the lifting ring 10 is used to provide a carrier for the installation of the sling 20. Among them, Figure 2 shows an exemplary structural schematic diagram of the lifting ring 10.

[0042] In Figure 2 the shown lifting ring 10, the lifting ring 10 may include a sleeved portion 11. Among them, the sleeved portion 11 may be a non-closed annular structure, so that the sleeved portion 11 has opposite ends. At the same time, extending portions 12 extending away from the inside of the sleeved portion 11 are provided at both opposite ends of the sleeved portion 11. And, an inlet / outlet a is defined between the two extending portions 12 at opposite ends of the sleeved portion 11.

[0043] It is worth noting that the inside of the above-mentioned sleeved portion 11 refers to the movable space b defined by the annular sleeved portion 11 as Figure 2 shown. And, the inlet / outlet a defined by the two extending portions 12 communicates with the inside of the sleeved portion 11 (that is, the movable space b).

[0044] It can be understood that for the spreader 10 constructed in the above form, it is beneficial to conveniently fit the sling 20 onto or remove the sling 20 from the fitting part 11 on the spreader 10. Among them, the two extension parts 12 on the spreader 10 can be opposite and parallel, and the two extension parts 12 and the fitting part 11 can be an integral structure.

[0045] As Figure 3 shown, it shows an exemplary structural schematic diagram of a single sling 20. In Figure 3 the sling 20 shown, the sling 20 can include a connecting piece 21. Among them, the connecting piece 21 is used to connect to the spreader 10.

[0046] Specifically, one end of the connecting piece 21 is provided with a first connecting part 211. The first connecting part 211 can be a closed structure in the shape of a ring, and the first connecting part 211 is configured to be able to allow the free end of any one of the extension parts 12 of the spreader 10 to pass through, so that the first connecting part 211 is fitted onto the fitting part 11 of the spreader 10. That is to say, when it is necessary to connect the connecting piece 21 to the spreader 10, only need to align the first connecting part 211 of the connecting piece 21 with the free end of any one of the extension parts 12 of the spreader 10, and let the extension part 12 pass through the first connecting part 211 until the first connecting part 211 moves to the position fitted onto the fitting part 11 of the spreader 10.

[0047] It can be understood that in the embodiment of the present utility model, the connecting piece 21 can be a steel cable or a chain as Figure 3 shown. When the connecting piece 21 is a steel cable, the first connecting part 211 can be a connecting ring (not shown in the figure) provided at the end of the steel cable. When the connecting piece 21 is a chain, a single link at the end of the chain can be used as the first connecting part 211 to simplify the structure of the connecting piece 21 as much as possible.

[0048] As Figure 4 shown, it shows an exemplary structural schematic diagram of the installation component 30. In Figure 4 the installation component 30 shown, the installation component 30 can include a mounting base 31. Among them, the two extension parts 12 of the spreader 10 are detachably connected to the mounting base 31, and when the two extension parts 12 of the spreader 10 are connected to the mounting base 31, referring to Figure 1 or Figure 6 shown, the inlet and outlet a between the two extension parts 12 can be blocked by the mounting base 31.

[0049] Based on the above settings, since the sling ring 10 can be detachably mounted to the mounting base 31 by means of its two extending portions 12, when it is necessary to replace, add or reduce the sling 20, only need to remove the two extending portions 12 from the mounting base 31 so that the inlet / outlet a between the two extending portions 12 is no longer blocked. Subsequently, the first connecting portion 211 of the connecting member 21 can be smoothly sleeved on the sleeving portion 11 or removed from the sleeving portion 11 through the free end of any one of the extending portions 12, so as to facilitate the operation of replacing, adding or reducing the sling 20. After the operation of replacing, adding or reducing the sling 20 is completed, connect the two extending portions 12 of the sling ring 10 to the mounting base 31 again to block the inlet / outlet a between the two extending portions 12 through the mounting base 31, so as to effectively prevent the first connecting portion 211 sleeved on the sleeving portion 11 from slipping off the sling ring 10.

[0050] In order to simplify the disassembly and assembly process of the two extending portions 12 as much as possible and improve the structural strength of the connection between the two extending portions 12 and the mounting base 31 as much as possible. The detachable connection between the two extending portions 12 and the mounting base 31 can be achieved in the following manner.

[0051] Specifically, as Figure 2 shown, connection holes 13 are provided on both of the two extending portions 12. As Figure 5 shown, a mounting groove 32 adapted to receive the two extending portions 12 is provided at the bottom of the mounting base 31, and the mounting groove 32 has an opening for the extending portions 12 to enter and exit. That is to say, the two extending portions 12 can enter and exit the mounting groove 32 through the opening of the mounting groove 32. At the same time, a positioning hole 33 penetrating through the mounting groove 32 is provided on the mounting base 31. And when the two extending portions 12 are received in the mounting groove 32, the positioning hole 33 on the mounting base 31 can be aligned with the connection holes 13 on the two extending portions 12 simultaneously.

[0052] At this time, the mounting assembly 30 may further include a fastener 34, and the fastener 34 is used to pass through the aligned positioning hole 33 and the connection holes 13 on the two extending portions 12. In other words, referring to Figure 6 shown, after the two extending portions 12 are received in the mounting groove 32, only need to use the fastener 34 to pass through the aligned positioning hole 33 and the connection holes 13 on the two extending portions 12, then the two extending portions 12 can be connected to the mounting base 31 simultaneously. At this time, the mounting base 31 together with the fastener 34 can jointly form a block at the inlet / outlet a between the two extending portions 12, and this method is beneficial to improving the structural strength of the connection between the two extending portions 12 and the mounting base 31. On the contrary, only need to remove the fastener 34, then the two extending portions 12 can be moved out of the mounting groove 32 from the opening of the mounting groove 32 to facilitate the operation of replacing, adding or reducing the sling 20.

[0053] Further, continue to refer to Figure 5 , the mounting grooves 32 provided at the bottom of the mounting base 31 can be provided in one-to-one correspondence with the extension portions 12, that is, one extension portion 12 can be received in one mounting groove 32. Moreover, each mounting groove 32 further has a top wall and two opposite side walls. When a single extension portion 12 is received in the corresponding mounting groove 32, the free end of the extension portion 12 contacts the top wall of the corresponding mounting groove 32, and the circumferential outer wall of the extension portion 12 simultaneously contacts the two opposite side walls of the corresponding mounting groove 32. In this way, it helps to further improve the structural strength of the connection between the extension portion 12 and the mounting base 31.

[0054] Exemplarily, the mounting groove 32 provided at the bottom of the mounting base 31 can be a downwardly open groove body as shown in Figure 5 . Moreover, the front and rear sides of the mounting groove 32 can also be of an open structure. At this time, the mounting groove 32 is generally a groove body structure only having a top wall and two opposite side walls, and the bottom side and the front and rear sides of the mounting groove 32 can all be used as the openings of the mounting groove 32, so as to receive the extension portion 12 into the corresponding mounting groove 32 from different directions.

[0055] Among them, continue to refer to Figure 5 , the above-mentioned fastener 34 can include a locking screw 341. When two extension portions 12 are received in the mounting groove 32 and the positioning holes 33 on the mounting base 31 are aligned with the connection holes 13 on the two extension portions 12 at the same time, pass the locking screw 341 through the aligned positioning holes 33 and the connection holes 13 on the two extension portions 12, and thread the locking nuts 342 on both ends of the locking screw 341, then the two extension portions 12 can be reliably connected to the mounting base 31.

[0056] Combined with Figure 4 or Figure 5 shown content, the mounting assembly 30 can further include a lifting member 35 provided on the mounting base 31. For example, the lifting member 35 can be provided at the top of the mounting base 31. Moreover, the lifting member 35 can be an annular member. It can be understood that through the setting of the lifting member 35, it is beneficial for the crane to hook the lifting member 35 with its own lifting hook, so as to realize the connection between the lifting sling and the crane. Among them, the lifting member 35 and the mounting base 31 can be an integral structure. For example, the lifting member 35 can be a member welded to the top of the mounting base 31.

[0057] In the embodiment of the present utility model, in order to facilitate connecting the sling 20 to the object to be lifted, combined with Figure 7As shown, the sling 20 may further include a connecting seat 22, a rotating seat 23, and a hook 24. Among them, the connecting seat 22 is connected to the connecting member 21. For example, the connecting seat 22 may be connected to one end of the connecting member 21 away from the first connecting portion 211. The rotating seat 23 is rotatably provided on the connecting seat 22. For example, the rotating seat 23 may be rotatably connected to the bottom of the connecting seat 22 so that the rotating seat 23 can rotate around its own axis in the horizontal plane. For example, the rotating seat 23 may be rotatably connected to the connecting seat 22 by means of a rotating member such as a bearing. The hook 24 is then connected to the rotating seat 23.

[0058] In this way, when it is necessary to connect the sling 20 to the object to be lifted, it is only necessary to use the hook 24 to hook the object to be lifted. At the same time, since the hook 24 is provided on the rotatable rotating seat 23, it is beneficial to adjust the angle of the hook 24 in the horizontal direction as needed to improve the flexibility when using the hook 24.

[0059] Furthermore, referring to Figure 8 As shown, the connecting seat 22 may be a member generally in a U shape so that the connecting seat 22 defines a limiting groove 25 with an opening. And, a limiting member 26 is provided on the connecting seat 22 and penetrates through the limiting groove 25 and is detachable. Among them, the limiting member 26 may be a bolt penetrating through the limiting groove 25.

[0060] As Figure 7 shown, a second connecting portion 212 is provided at one end of the connecting member 21 away from the first connecting portion 211. The second connecting portion 212 may also be a closed structure in a ring shape. For example, when the connecting member 21 is a chain, a single link at the corresponding end of the chain may be used as the second connecting portion 212 to simplify the structure of the connecting member 21 as much as possible.

[0061] And, the second connecting portion 212 of the connecting member 21 can be received in the limiting groove 25 through the opening of the limiting groove 25, and the limiting member 26 on the connecting seat 22 passes through the second connecting portion 212. In this way, the limiting of the second connecting portion 212 of the connecting member 21 by the limiting member 26 can be realized, and since the limiting member 26 can be removed from the connecting seat 22, the connecting seat 22, the rotating seat 23 together with the hook 24 become detachable components relative to the connecting member 21, which is beneficial to replacing the hook 24 as needed.

[0062] Furthermore, considering that there may be an application scenario in which it is necessary to prevent the hook 24 from rotating in actual applications, for this reason, in combination with Figure 8 As shown, a locking portion 221 is also provided on the connecting seat 22, and a positioning portion 231 capable of being aligned with the locking portion 221 is provided on the rotating seat 23. Among them, the locking portion 221 and the positioning portion 231 are detachably connected by a locking pin 27.

[0063] In this way, when the locking part 221 and the positioning part 231 are connected by the locking pin 27, the rotating seat 23 cannot rotate relative to the connecting seat 22, thereby realizing the locking of the position of the lifting hook 24. On the contrary, if it is necessary to enable the lifting hook 24 to rotate, it is only necessary to remove the locking pin 27, and the operation is simple and convenient.

[0064] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A lifting sling for a crane, characterized in that: include: A lifting ring, comprising a sleeve portion; the sleeve portion is an annular non-closed structure, the sleeve portion has two opposite ends, and both opposite ends of the sleeve portion are provided with extension portions extending away from the interior of the sleeve portion; an inlet and outlet are defined between the two extension portions, and the inlet and outlet are communicated with the interior of the sleeve portion; A sling, comprising a connecting piece; the connecting piece is provided with a first connecting portion, the first connecting portion is an annular closed structure, and the first connecting portion is configured to allow a free end of any one of the extending portions to pass through, so that the first connecting portion is sleeved on the sleeve portion; The mounting assembly comprises a mounting seat; the two extensions are detachably connected to the mounting seat; wherein when the two extensions are connected to the mounting seat, the inlet and outlet are blocked by the mounting seat.

2. The hoisting sling of a crane according to claim 1, characterized in that: The two extension parts are both provided with connection holes; The bottom of the mounting seat is provided with a mounting groove suitable for accommodating the two extension parts, and the mounting groove has an opening for the extension parts to enter and exit; the mounting seat is provided with a positioning hole penetrating the mounting groove, and when the two extension parts are accommodated in the mounting groove, the positioning hole is aligned with the connection holes on the two extension parts; The mounting assembly further comprises a fastener, and the fastener is used to pass through the aligned positioning hole and the connecting holes on the two extension parts.

3. The hoisting sling of a crane according to claim 2, characterized in that: The mounting groove corresponds to the extension portion one by one, and the mounting groove has a top wall and two opposite side walls; When the extension portion is received in the corresponding mounting groove, the free end of the extension portion contacts the top wall of the corresponding mounting groove, and the circumferential outer wall of the extension portion contacts the two opposite side walls of the corresponding mounting groove at the same time.

4. The hoisting sling of a crane according to claim 3, characterized in that: The installation slot is a slot body that is open downward, and the front and rear sides of the installation slot are open structures.

5. The hoisting sling of a crane according to claim 2, characterized in that: The fastener comprises a locking screw, which is configured to pass through the aligned positioning hole and the connecting holes on the two extending parts, and both ends of the locking screw are threadedly connected with locking nuts.

6. The hoisting sling of a crane according to claim 1, characterized in that: The sling also includes a connecting seat, a rotating seat and a hook; The connecting seat is connected to the connecting piece, the rotating seat is rotatably arranged on the connecting seat, and the rotating seat is connected to the hook.

7. The hoisting sling of a crane according to claim 6, characterized in that: The connecting seat defines a limiting groove with an opening, and the connecting seat is provided with a detachable limiting member that passes through the limiting groove; A second connecting portion is provided at one end of the connecting member away from the first connecting portion, and the second connecting portion is in a ring-shaped closed structure; The second connection portion is received in the limiting groove, and the limiting member passes through the second connection portion.

8. The hoisting sling of a crane according to claim 6, characterized in that: The connecting seat is provided with a locking portion, the rotating seat is provided with a positioning portion capable of being aligned with the locking portion, and the locking portion and the positioning portion are detachably connected.

9. The hoisting sling of a crane according to claim 1, characterized in that: A hanging piece is arranged on the mounting seat.

10. The hoisting sling of a crane according to claim 1, characterized in that: The two extension parts are opposite and parallel to each other, and the two extension parts and the sleeve part are an integrated structure.

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