Self-locking lifting ring type lifting appliance

Abstract

The utility model relates to a self-locking lifting ring type lifting appliance, which relates to the technical field of lifting equipment, and comprises a lifting appliance, a lifting ring, a lifting nail and an anti-falling assembly, two holes, namely an upper ring hole and a lower ring hole, are formed in the lifting appliance, the lifting ring is buckled with the lower ring hole of the lifting appliance, a duckbilled groove is formed in the lifting ring and is used for mounting a lifting nail, a lifting nail head is fixedly mounted at one end of the lifting nail, the lifting nail head is mounted in the duckbilled groove in the lifting ring in a sliding manner, and the anti-falling assembly is mounted on the lifting ring. The anti-disengaging assembly is used for preventing the hanging nail from disengaging from the hanging ring in the using process. The hoisting device has the effect of preventing a hoisted object from accidentally falling off in the hoisting process, so that the safety of hoisting operation is improved.

Description

Technical Field

[0001] The present application relates to the technical field of lifting equipment, and in particular to a self-locking lifting ring type lifting device. Background Art

[0002] Spreaders are essential tools in the construction and industrial production industries, and are widely used in various lifting operations. With the continuous development of industrial production and technological advancements, the design of spreaders is also being continuously optimized and improved.

[0003] Traditional slings mostly adopt simple hook or ring structures and use high-strength materials to enhance the load-bearing capacity of the slings. Although they can meet basic lifting needs, they have certain limitations in terms of safety, durability and reliability.

[0004] Especially during the lifting process, accidental falling of the suspended objects due to unhooking is still a common safety hazard. This hazard may not only cause property loss, but also endanger the lives of workers. Therefore, designing a lifting equipment that can effectively prevent the suspended objects from falling during the lifting process has become a technical problem that needs to be solved urgently. Utility Model Content

[0005] In order to prevent the hoisted objects from accidentally falling out during the hoisting process, thereby improving the safety of the hoisting operation, the present application provides a self-locking lifting ring type lifting device.

[0006] This application provides a self-locking lifting ring type sling, which adopts the following technical solution:

[0007] A self-locking lifting ring type sling, comprising:

[0008] A sling, wherein the sling is provided with two holes, an upper ring hole and a lower ring hole;

[0009] A lifting ring, the lifting ring being buckled with the lower ring hole of the sling, the lifting ring being provided with a duckbill groove for mounting the lifting nail;

[0010] A hanging nail, one end of which is fixedly mounted with a hanging nail head, and the hanging nail head is slidably mounted in the duckbill groove on the hanging ring;

[0011] An anti-slip component is installed on the hanging ring, and is used to prevent the hanging nail from falling out of the hanging ring during use.

[0012] By adopting the above technical solution, the connection before lifting can be completed by sliding the lifting nail into the duckbill groove on the lifting ring. The anti-slip component can effectively prevent the lifting nail from falling out of the lifting ring during the lifting process, causing the hanging object to fall off, thereby improving the safety of the lifting operation and effectively reducing the occurrence of lifting accidents.

[0013] Optionally, the duckbill groove is an arc-shaped groove, the duckbill groove is formed along the outer periphery of the lifting ring in a circumferential direction, the cross-sectional area of the duckbill groove gradually decreases along the circumferential path, the end of the duckbill groove penetrating out of the lifting ring along the circumferential path is a leading end, and the end of the duckbill groove not penetrating through the lifting ring is a trailing end.

[0014] By adopting the above technical solution, the cross-sectional area of the leading end of the duckbill groove is relatively large, facilitating the insertion and installation of the lifting bolt head and smooth sliding in the duckbill groove. The design of the duckbill groove ensures that the lifting bolt cannot be pulled out of the lifting ring in the radial direction of the lifting ring during lifting. As the cross-sectional area of the duckbill groove gradually decreases along the circumferential path, the position of the lifting bolt head in the groove is gradually fixed, further reducing the movement space of the lifting bolt head and further improving the safety and reliability of the lifting device.

[0015] Optionally, the anti-extraction assembly comprises:

[0016] a movable plate, which is hinged to the lifting ring and arranged in the duckbill groove;

[0017] a spring, which is arranged in the duckbill groove and fixedly connected to the lifting ring and the movable plate at both ends.

[0018] By adopting the above technical solution, when the lifting bolt head slides into the duckbill groove, the movable plate is raised under the action of the spring, a physical barrier is formed at the leading end of the duckbill groove, and even if external impact or vibration is received during lifting, the movable plate can block the lifting bolt head from being pulled out of the duckbill groove, thereby improving the safety and reliability of the lifting operation. At the same time, the design of the spring enables the movable plate to be automatically reset during disassembly after lifting is completed, facilitating subsequent repeated use.

[0019] Optionally, a self-locking groove is arranged at the trailing end of the duckbill groove, the groove surface of the self-locking groove matches the profile of the lifting bolt head, and the recess direction of the self-locking groove is away from the center of the lifting ring, so that the lifting bolt cannot slide in the duckbill groove during lifting because the head of the lifting bolt is positioned by the self-locking groove.

[0020] By adopting the above technical solution, when the lifting bolt head slides into the duckbill groove and reaches the trailing end, it will naturally fall into the self-locking groove. Since the groove surface of the self-locking groove matches the profile of the lifting bolt head, the lifting bolt head can be closely fitted in the self-locking groove, effectively preventing the lifting bolt head from continuously sliding in the duckbill groove during lifting, generating impact force on the anti-extraction assembly and damaging the anti-extraction assembly. This greatly enhances the locking stability of the lifting bolt in the lifting ring and ensures the smooth progress of the lifting operation, further enhancing the self-locking performance of the lifting device.

[0021] Optionally, a limiting plate is fixedly installed at the end of the lifting bolt away from the lifting bolt head, and the limiting plate can prevent the lifting bolt from being pulled out of the lifted object during lifting.

[0022] By adopting the above technical solution, the setting of the limit plate can effectively prevent the lifting nails from falling out of the hoisted object during the lifting process, causing the heavy object to fall, further enhancing the safety and reliability of the lifting operation.

[0023] Optionally, a baffle is fixedly mounted on the hanging ring, and the baffle is arranged on a side of the hanging ring away from the duckbill groove.

[0024] By adopting the above technical solution, as the lifting nail head slides into the duckbill groove for lifting, the baffle and the hoisted object will fully contact to generate a certain friction and supporting force, so that the lifting ring will not easily rotate during the lifting process, thereby maintaining a relatively stable state. At the same time, during the installation of the lifting ring and the lifting nail, or when the installation angle or position of the lifting ring and the lifting nail needs to be adjusted, the baffle provides a convenient fulcrum as an operating handle. The operator can easily hold the baffle and install or rotate the lifting ring by applying appropriate force. Especially when space is limited, using the baffle as an operating handle can more flexibly adjust the lifting ring, greatly improving the convenience of operation.

[0025] Optionally, an operation hole is opened on the baffle, and the operation hole is used to assist in the removal of the lifting ring and the lifting nail after the lifting is completed.

[0026] By adopting the above technical solution, when the sling needs to be dismantled after the lifting is completed, the operation hole provides a convenient operation point for the operator. Through the operation hole, tools such as crowbars can be inserted into the operation hole and appropriate force can be applied to separate the lifting ring and the lifting nail, making the disassembly process easier and faster, and reducing the labor cost and time consumption during disassembly.

[0027] Optionally, the sling, the lifting ring and the lifting nail are all made of high-strength alloy material.

[0028] By adopting the above technical solution and using slings, lifting rings and lifting nails made of high-strength alloy materials, the mechanical strength and durability of the entire sling are improved, ensuring stability and safety under high-load operating conditions, extending the service life of the sling and reducing maintenance costs.

[0029] In summary, this application includes at least one of the following beneficial technical effects:

[0030] 1. The duckbill slot has a larger cross-sectional area at the front end, making it easier to insert the nail head. The operator can easily slide the nail head into the front end of the duckbill slot and then push it along the circumferential path of the slot, gradually inserting it deeper and achieving automatic locking. When the spreader needs to be disassembled, the operator can start from the rear end and gradually push the nail head in the opposite direction. The disassembly and assembly process is simple and easy, improving work efficiency.

[0031] 2. By setting the anti-dropping assembly, effective blocking can be formed after the lifting bolt is installed, and even if severe shaking or external force impact is received during lifting, the lifting bolt can be prevented from falling out of the lifting ring, personnel casualties and property losses caused by heavy objects falling are avoided, and the safety of lifting operation is greatly improved.

[0032] 3. By setting the self-locking groove, when the lifting bolt head slides into the duckbill groove and reaches the tail end, it will naturally fall into the self-locking groove matched with the profile of the lifting bolt head, the close fitting enables the lifting bolt to be firmly positioned during lifting and not to slide in the duckbill groove, and the reliability of lifting operation is improved. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 is a structural schematic view of the self-locking lifting ring type lifting appliance of the embodiment of the present application;

[0034] Figure 2 is a sectional view of the self-locking lifting ring type lifting appliance of the embodiment of the present application;

[0035] Figure 3 is a local enlarged view of A of the embodiment of the present application. Figure 2

[0036] EXPLANATION OF REFERENCE NUMERALS:

[0037] 1, lifting appliance; 11, upper ring hole; 12, lower ring hole; 2, lifting ring; 21, duckbill groove; 22, self-locking groove; 3, lifting bolt; 4, lifting bolt head; 5, anti-dropping assembly; 51, movable plate; 52, spring; 6, limiting plate; 7, baffle; 71, operation hole. DETAILED DESCRIPTION

[0038] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0039] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second" and the like are only for description purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" and the like can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "multiple" is two or more.​

[0040] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0041] The following is combined with Figure 1-3 This application is described in further detail.

[0042] The embodiment of the present application discloses a self-locking lifting ring type lifting device.

[0043] Reference Figure 1 and Figure 2 The self-locking lifting ring 2 type sling 1 includes a lifting ring 1, a lifting ring 2, a lifting nail 3 and an anti-slip component 5. The lifting ring 1 is provided with two holes, namely an upper ring hole 11 and a lower ring hole 12. The lifting ring 2 is buckled with the lower ring hole 12 of the lifting ring 1. The lifting ring 2 is provided with a duckbill groove 21 for installing the lifting nail 3. A lifting nail head 4 is fixedly installed at one end of the lifting nail 3. The lifting nail head 4 is slidably installed in the duckbill groove 21 on the lifting ring 2. The anti-slip component 5 is installed on the lifting ring 2. The anti-slip component 5 is used to prevent the lifting nail 3 from falling out of the lifting ring 2 during use.

[0044] When in use, the hanging nail 3 is embedded in the object to be hung, with the hanging nail head 4 exposed from the object, and the duckbill groove 21 on the lifting ring 2 is aligned with the hanging nail head 4, so that the hanging nail head 4 slides into the duckbill groove 21 and remains relatively stable, and the rope or hook of the lifting equipment such as a crane or a crane is firmly connected to the upper ring hole 11 of the lifting device 1, and the lifting equipment is started. The object to be hung is lifted through the lifting device 1, and the anti-slip component 5 prevents the hanging nail 3 from sliding out of the duckbill groove 21 during the lifting process, thereby improving the safety of the lifting operation.

[0045] Reference Figure 1 and Figure 2 The lifting ring 2 is annular and is an integrally formed design, which enhances the structural strength and service life of the lifting ring 2. The lifting nail 3 is a slender rod structure, and a lifting nail head 4 is fixedly installed at one end of the lifting nail 3. The diameter of the lifting nail head 4 is larger than the diameter of the lifting nail 3. There is an inclined transition shoulder neck at the connection between the two to facilitate smooth installation. The end of the lifting nail 3 away from the lifting nail head 4 is fixedly installed with a limit plate 6. The limit plate 6 is a circular plate structure. The limit plate 6 increases the contact area between the lifting object and prevents the lifting nail 3 from falling off from the lifting object during the lifting process, thereby improving the safety of the lifting operation.

[0046] Reference Figure 2, the duckbill groove 21 is an arc-shaped groove, the duckbill groove 21 is opened along the outer circumferential direction of the lifting ring 2, the cross-sectional area of the duckbill groove 21 gradually decreases along the circumferential path, but is always greater than the cross-sectional area of the lifting lug head 4, the end of the duckbill groove 21 along the circumferential path to the outside of the lifting ring 2 is the first end, the end of the duckbill groove 21 not penetrating the lifting ring 2 is the tail end, the end of the duckbill groove 21 along the cross section of the lifting ring 2 close to the center of the lifting ring 2 is the wide side, and the end away from the center of the lifting ring 2 is the narrow side, the width of the wide side of the duckbill groove 21 is greater than the diameter of the lifting lug head 4, the narrow side of the duckbill groove 21 is an open structure penetrating to the outside of the lifting ring 2 along the radial direction of the lifting ring 2, the width of the open narrow side is greater than the neck diameter of the lifting lug 3 and less than the diameter of the lifting lug head 4, so that the lifting lug 3 cannot be pulled out of the lifting ring 2 along the radial direction, and the lifting lug head 4 can be slid into the first end of the duckbill groove 21 and finally slide to the tail end of the duckbill groove 21 for lifting work.

[0047] In use, the first end of the duckbill groove 21 on the lifting ring 2 is aligned with the lifting lug head 4, because the width of the wide side of the duckbill groove 21 is greater than the diameter of the lifting lug head 4, the lifting lug head 4 can be easily aligned with the first end entrance, the lifting ring 2 is continuously rotated to make the lifting lug head 4 slide to the tail end of the duckbill groove 21, when the duckbill groove 21 is rotated to the tail end of the lifting lug head 4, the lifting work is ready, the lifting device 1 is slowly lifted, as the lifting device 1 rises, the lifting lug 3 bears the weight of the lifted object, because the narrow side of the duckbill groove 21 is an open structure, its width is greater than the neck diameter of the lifting lug 3 and less than the diameter of the lifting lug head 4, so the lifting lug 3 cannot be pulled out of the lifting ring 2 along the radial direction, ensuring the safety of lifting.

[0048] Referring to Figure 2 and Figure 3 , the anti-falling assembly 5 includes a movable plate 51 and a spring 52. The movable plate 51 is a rectangular plate structure, the movable plate 51 is arranged in the duckbill groove 21, the movable plate 51 is hinged at the first end of the wall of the duckbill groove 21, and the spring 52 is arranged in the duckbill groove 21, and the two ends of the spring 52 are fixedly connected with the lifting ring 2 and the movable plate 51 respectively.

[0049] In use, when the first end of the duckbill groove 21 on the lifting ring 2 is aligned with the lifting lug head 4, and the lifting lug head 4 begins to slide into the duckbill groove 21, the lifting lug head 4 first contacts the movable plate 51, the lifting lug head 4 pushes the movable plate 51 to rotate inward to overcome the elastic force of the spring 52, so that the lifting lug head 4 can smoothly enter the duckbill groove 21, when the lifting lug head 4 completely enters, the elastic restoring force of the spring 52 makes the movable plate 51 automatically reset, quickly returns to the entrance of the duckbill groove 21 to block the entrance, without manual intervention, realizing the automatic anti-falling function.

[0050] When the hoisted object reaches the destination and the sling 1 needs to be disassembled, starting from the tail end of the duckbill slot 21, the hanging nail head 4 is pushed out in the opposite direction. During the pushing process, it is necessary to manually press the movable plate 51 into the duckbill slot 21 so that the movable plate 51 overcomes the elastic force of the spring 52 and rotates toward the inside of the duckbill slot 21 and fits against the inner wall, so that the hanging nail head 4 can smoothly exit the duckbill slot 21.

[0051] Reference Figure 2 A recessed self-locking groove 22 is provided at the tail end of the duckbill groove 21. The groove surface of the self-locking groove 22 matches the contour of the hanging nail head 4 in contact. The recessed direction of the self-locking groove 22 is away from the center of the lifting ring 2, so that when the hanging nail 3 enters the tail end of the duckbill groove 21 during the installation process, the hanging nail head 4 can be naturally embedded in the self-locking groove 22 and will not slide in the duckbill groove 21, thereby improving the stability and safety of lifting.

[0052] Reference Figure 1 and Figure 2 A baffle 7 is fixedly mounted on the lifting ring 2. The baffle 7 is arranged on the side of the lifting ring 2 away from the tail end of the duckbill slot 21. An operation hole 71 is opened on the baffle 7. The sling 1, the lifting ring 2 and the hanging nail 3 are all made of high-strength alloy materials, which improves the mechanical strength and durability of the device.

[0053] During the hoisting process, the baffle 7 will fully contact the hoisted object to generate friction and support force, so that the lifting ring 2 and the hoisted object will not easily rotate during the hoisting process, maintaining a relatively restrained state. At the same time, the baffle 7 can be used as an operating handle to facilitate the installation and adjustment of the lifting ring 2. The operating hole 71 is used to separate the lifting ring 2 from the hanging nail 3 using auxiliary tools such as a crowbar when the sling 1 needs to be disassembled after the hoisting is completed, thereby reducing the labor cost and time consumption during disassembly.

[0054] The implementation principle of the self-locking lifting ring 2 type sling 1 of the embodiment of the present application is as follows: the lower ring hole 12 on the sling 1 is buckled with the lifting ring 2, and the duckbill groove 21 on the lifting ring 2 is used to install the lifting nail 3. When lifting and installing, the lifting nail head 4 is slid into the duckbill groove 21 from the front end. Since the wide side of the duckbill groove 21 is larger than the diameter of the lifting nail head 4, the operation is convenient. As the lifting ring 2 rotates, the lifting nail head 4 slides to the tail end and sinks into the self-locking groove 22 to prevent the lifting nail 3 from sliding during the lifting process.

[0055] During installation, the movable plate 51 is pushed open by the hanging nail head 4. During lifting, the spring 52 presses the movable plate 51 against the head end of the duckbill slot 21 to prevent the hanging nail head 4 from falling out. The entire sling 1 prevents the hanging object from accidentally falling out during the lifting process through the coordinated action of various components, thereby improving the safety of the lifting operation.

[0056] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A self-locking lifting ring (2) type lifting device (1), characterized in that: include: A sling (1), wherein the sling (1) is provided with two holes, namely an upper ring hole (11) and a lower ring hole (12); A lifting ring (2), the lifting ring (2) being buckled with the lower ring hole (12) of the sling (1), the lifting ring (2) being provided with a duckbill groove (21), and the lifting ring (2) being used for being installed with a lifting object; A hanging nail (3), wherein a hanging nail head (4) is fixedly mounted on one end of the hanging nail (3), the hanging nail head (4) is slidably mounted in the duckbill groove (21) on the hanging ring (2), and the hanging nail (3) is embedded in the hanging object; An anti-slip component (5) is installed on the lifting ring (2), and the anti-slip component (5) is used to prevent the lifting nail (3) from falling out of the lifting ring (2) during use.

2. The self-locking lifting ring (2) type lifting device (1) according to claim 1, characterized in that: The duckbill groove (21) is an arc-shaped groove, and the duckbill groove (21) is opened along the outer periphery of the hanging ring (2) in a circumferential direction. The cross-sectional area of ​​the duckbill groove (21) gradually decreases along the circumferential path. The end of the duckbill groove (21) that passes through the hanging ring (2) along the circumferential path is the head end, and the end of the duckbill groove (21) that does not pass through the hanging ring (2) is the tail end.

3. The self-locking lifting ring (2) type lifting device (1) according to claim 2, characterized in that: The anti-fall-off component (5) comprises: A movable plate (51), the movable plate (51) is hinged on the lifting ring (2), and the movable plate (51) is arranged in the duckbill groove (21); A spring (52), wherein the spring (52) is arranged in the duckbill groove (21), and two ends of the spring (52) are fixedly connected to the hanging ring (2) and the movable plate (51) respectively.

4. The self-locking lifting ring (2) type lifting device (1) according to claim 2, characterized in that: A self-locking groove (22) is provided at the tail end of the duckbill groove (21), the groove surface of the self-locking groove (22) matches the contour of the hanging nail head (4), and the recessed direction of the self-locking groove (22) is the direction away from the center of the lifting ring (2), so that the hanging nail (3) will not slide in the duckbill groove (21) during the lifting process because the hanging nail head (4) is positioned by the self-locking groove (22).

5. The self-locking lifting ring (2) type lifting device (1) according to claim 1, characterized in that: A limiting plate (6) is fixedly mounted on one end of the hanging nail (3) away from the hanging nail head (4), and the limiting plate (6) can prevent the hanging nail (3) from falling out of the hoisted object during the hoisting process.

6. The self-locking lifting ring (2) type lifting device (1) according to claim 1, characterized in that: A baffle (7) is fixedly mounted on the lifting ring (2), and the baffle (7) is arranged on a side of the lifting ring (2) away from the duckbill groove (21).

7. The self-locking lifting ring (2) type lifting device (1) according to claim 6, characterized in that: An operating hole (71) is provided on the baffle (7), and the operating hole (71) is used to assist in the disassembly of the lifting ring (2) and the lifting nail (3) after the lifting is completed.

8. The self-locking lifting ring (2) type lifting device (1) according to claim 1, characterized in that: The sling (1), the sling ring (2) and the sling nail (3) are all made of high-strength alloy material.

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