Quick-change connector of lifting appliance

Abstract

The utility model provides a quick-change interface of a lifting appliance, which is used for connecting a lifting hook and a lifting object, the lifting object is provided with a lifting groove, and the quick-change interface of the lifting appliance comprises a mounting seat and a spin lock component, a lifting ring matched with the lifting hook is arranged on the mounting seat; the spin lock component comprises a spin lock main shaft and a flange sleeve, the flange sleeve is installed on the installation base in a penetrating mode, the spin lock main shaft penetrates through the flange sleeve and is rotationally connected with the flange sleeve, the spin lock main shaft comprises a first section, a matching section and a second section, the matching section is rotationally connected with the flange sleeve, and the first section extends out of the installation base and is located on the same side with the hanging ring; the second section extends out of the other side of the mounting base, and a buckle structure is arranged at one end of the second section; wherein the buckle structure is provided with a first position capable of entering and exiting from the hoisting groove and a second position capable of being locked in the hoisting groove, and the technical problems that a crane and a hoisted object are prone to unhooking, and remote butt joint operation is difficult can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of hoisting, in particular to a hoisting tool quick-change interface. Background Art

[0002] At present, in the nuclear power field, the transfer of radioactive lifting objects such as nuclear waste is mainly completed by cranes in hot rooms. The hook is the most commonly used interface on the crane sling. Although it is simple to make, it is easy to get unhooked due to the shaking of the lifting object during the lifting process, and the safety risk is relatively high. In addition, because radioactive substances can cause harm to the human body, it is not convenient for operators to approach the site to perform lifting equipment docking operations. Instead, they need to use a remote control servo manipulator to perform remote operations through a relatively thick radiation-proof glass, which greatly reduces the convenience of docking the crane with the lifting object. Utility Model Content

[0003] In view of the above shortcomings of the prior art, the utility model provides a sling quick-change interface to improve the technical problems of easy uncoupling between the crane and the hoisted object and difficulty in remote docking operation.

[0004] To achieve the above-mentioned purpose and other related purposes, the utility model provides a sling quick-change interface for connecting a hook and a lifting object, wherein a lifting groove is provided on the lifting object, and the sling quick-change interface includes a mounting seat and a rotary lock component; a lifting ring cooperating with the hook is provided on the mounting seat; the rotary lock component includes a rotary lock main shaft and a flange sleeve, the flange sleeve is installed through the mounting seat, the rotary lock main shaft passes through the flange sleeve and is rotatably connected with the flange sleeve, the rotary lock main shaft includes a first section, a matching section and a second section, the matching section is rotatably connected with the flange sleeve, the first section extends out of the mounting seat and is located on the same side as the lifting ring, the second section extends out of the other side of the mounting seat, and a snap structure is provided at one end of the second section; wherein the snap structure has a first position for entering and exiting the lifting groove and a second position for being locked in the lifting groove.

[0005] In an example of the sling quick-change interface of the utility model, the rotary lock component also includes a handle, and the handle is fixedly connected to the first section.

[0006] In an example of the quick-change interface of the sling of the present invention, the rotary lock component also includes a fastener, the fastener is detachably connected to the first section, and the fastener is located on a side of the handle away from the mounting seat.

[0007] In an example of the quick-change interface of the sling of the present utility model, the rotary lock component also includes a first bearing, and the first bearing is located between the rotary lock main shaft and the flange sleeve.

[0008] In an example of the quick-change interface of the sling of the utility model, the rotary lock component also includes a second bearing, and the inner wall of the flange sleeve is provided with a protruding stop portion, the stop portion is located on the side of the first bearing away from the snap structure, and the second bearing is located between the rotary lock main shaft and the flange sleeve, and is located on the side of the stop portion away from the first bearing.

[0009] In an example of the quick-change interface of the sling of the present utility model, the rotary lock component also includes a spacer sleeve, the spacer sleeve is sleeved on the first section, and the spacer sleeve is located between the rotating handle and the second bearing.

[0010] In an example of the quick-change interface of the sling of the utility model, there are two rotary lock components, and the rotating handle includes a first connecting part and a second connecting part protruding to both sides, the two first connecting parts are connected by a first connecting rod, and the two ends of the first connecting rod are respectively hinged to the two first connecting parts, and the two second connecting parts are connected by a second connecting rod, and the two ends of the second connecting rod are respectively hinged to the two second connecting parts.

[0011] In an example of the quick-change interface of the sling of the present utility model, a limiting component is provided on the first connecting rod or the second connecting rod, and a first limiting hole and a second limiting hole matching with the limiting component are provided on the mounting seat.

[0012] In an example of the quick-change interface of the sling of the utility model, the limiting component includes a pin, a compression spring and an axis fixing ring, the pin passes through the first connecting rod, the axis fixing ring is fixedly connected to the side of the pin close to the mounting seat, and the compression spring is arranged between the axis fixing ring and the first connecting rod.

[0013] In an example of the sling quick-change interface of the utility model, the sling quick-change interface also includes a guide member, and the guide member is arranged on a side of the mounting seat close to the hoisting object.

[0014] The utility model discloses a sling quick-change interface, a mounting seat is provided with a lifting ring which cooperates with the lifting hook, the lifting ring and the lifting hook on the sling quick-change interface are first fixedly connected, which improves the stability of the connection between the crane and the sling, and the rotary lock main shaft is installed on the mounting seat through a flange sleeve, the rotary lock main shaft is rotationally connected with the flange sleeve, and a snap structure is provided at one end of the second section of the rotary lock main shaft, and the snap structure can be switched between a first position and a second position by rotating the rotary lock main shaft, and the snap structure can be extended into the lifting groove when in the first position, and after extending into the lifting groove, the snap structure is rotated to the second position, at this time, the crane realizes locking with the lifting object through the sling quick-change interface, and this arrangement can realize quick locking only by rotating the rotary lock main shaft, which improves the safety and convenience of the connection and fixation between the crane and the lifting object. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other embodiments can be obtained based on these drawings without paying creative work.

[0016] Figure 1 This is a schematic diagram of the overall structure of an example of a quick-change interface for a sling of the utility model;

[0017] Figure 2 This is a structural schematic diagram of a rotary lock component in an example of a quick-change interface for a sling of the utility model;

[0018] Figure 3 It is a cross-sectional view of a rotary lock component in an example of a quick-change interface of a sling of the utility model;

[0019] Figure 4 It is a structural schematic diagram of two rotary lock components in an example of a quick-change interface for a sling of the utility model;

[0020] Figure 5 This is a structural schematic diagram of a limiting component in an example of a quick-change interface for a sling of the utility model;

[0021] Figure 6 This is a schematic diagram of the structure of the mounting seat, guide member and hoisting object in an example of the quick-change interface of the sling of the utility model.

[0022] Component number description

[0023] 100, mounting seat; 110, lifting ring; 120, first limiting hole; 130, second limiting hole; 200, rotary lock component; 210, rotary lock main shaft; 211, first section; 212, matching section; 213, second section; 214, buckle structure; 220, flange sleeve; 221, stopper; 230, handle; 231, first connecting part; 232, second connecting part; 240, fastener; 250, first bearing; 260, second bearing; 270, spacer; 300, first connecting rod; 400, second connecting rod; 500, limiting component; 510, latch; 520, compression spring; 530, shaft fixing ring; 600, guide member; 700, lifting object; 710, lifting groove. DETAILED DESCRIPTION

[0024] The following describes the implementation of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and the features in the embodiments can be combined with each other without conflict. It should also be understood that the terms used in the embodiments of the present invention are intended to describe specific implementation schemes, rather than to limit the scope of protection of the present invention. The test methods for which specific conditions are not specified in the following examples are usually carried out under conventional conditions or under the conditions recommended by the manufacturers.

[0025] When numerical ranges are given in the embodiments, it should be understood that unless otherwise specified in the present invention, both endpoints of each numerical range and any value between the two endpoints can be selected. Unless otherwise defined, all technical and scientific terms used in the present invention are in accordance with the prior art mastery of those skilled in the art and the description of the present invention, and any prior art methods, equipment and materials similar or equivalent to the methods, equipment and materials in the embodiments of the present invention can also be used to implement the present invention.

[0026] It should be noted that the terms such as "upper", "lower", "left", "right", "middle" and "one" cited in this specification are only for the convenience of description and are not used to limit the scope of implementation of the present utility model. Changes or adjustments to their relative relationships should be regarded as the scope of implementation of the present utility model without substantially changing the technical content.

[0027] See also Figures 1 to 6 The utility model provides a sling quick-change interface for connecting a hook and a lifting object 700, wherein the lifting object 700 is provided with a lifting groove 710, and the sling quick-change interface comprises a mounting seat 100 and a rotary lock component 200; the crane realizes locking with the lifting object 700 through the sling quick-change interface, and the setting can realize quick locking only by rotating the rotary lock main shaft 210, thereby improving the safety and convenience of the connection and fixation between the crane and the lifting object 700.

[0028] See also Figure 1 and Figure 6 A lifting ring 110 cooperating with the lifting hook is provided on the mounting seat 100; before the crane lifts the lifting object 700, the lifting hook on the crane and the lifting ring 110 on the mounting seat 100 are installed first. This setting does not need to consider the requirement of quick installation of the lifting hook and the lifting ring 110 during on-site connection, and a relatively stable but not fast structure can be adopted, thereby improving the stability of the connection between the lifting hook and the lifting ring 110, and improving the problem of easy decoupling and high safety risk.

[0029] See also Figures 1 to 3 The rotary lock component 200 includes a rotary lock main shaft 210 and a flange sleeve 220. The flange sleeve 220 is installed through the mounting seat 100. The rotary lock main shaft 210 penetrates the flange sleeve 220 and is rotatably connected to the flange sleeve 220. The rotary lock main shaft 210 includes a first section 211, a matching section 212 and a second section 213. The matching section 212 is rotatably connected to the flange sleeve 220. The first section 211 extends out of the mounting seat 100 and is located on the same side as the lifting ring 110. The second section 213 extends out of the other side of the mounting seat 100. A snap structure 214 is provided at one end of the second section 213. The snap structure 214 can be in various forms. In this embodiment, the snap form is a T-shaped structure.

[0030] See also Figures 1 to 3 and Figure 6 The buckle structure 214 has a first position for entering and exiting the lifting groove 710 and a second position for locking in the lifting groove 710. By rotating the rotary lock spindle 210, the buckle structure 214 can be switched between the first position and the second position, and when the buckle structure 214 is in the first position, it can be extended into the lifting groove 710. After extending into the lifting groove 710, the buckle structure 214 is rotated to the second position. At this time, the crane realizes locking with the lifting object 700 through the lifting device quick-change interface. This setting can achieve quick locking only by rotating the rotary lock spindle 210, thereby improving the safety and convenience of the connection and fixation between the crane and the lifting object 700.

[0031] See also Figures 1 to 3 In an example of the quick-change interface of the sling of the utility model, the rotary lock component 200 also includes a handle 230, and the handle 230 is fixedly connected to the first section 211. The rotation of the rotary lock spindle 210 can be controlled by the handle 230, which is convenient for operation. The handle 230 and the first section 211 can be connected by key, pin or thread. In this embodiment, the handle 230 and the first section 211 are connected by key.

[0032] See also Figure 2 and Figure 3 In an example of the quick-change interface of the sling of the utility model, the rotary lock component 200 also includes a fastener 240, and the fastener 240 is detachably connected to the first section 211. The fastener 240 is located on the side of the handle 230 away from the mounting seat 100. There are many types of fasteners 240, which are not limited to this. In this embodiment, a hexagonal slotted nut is used, and the hexagonal slotted nut is threadedly matched with the rotary lock spindle 210 to axially position the handle 230 and the flange sleeve 220. The bolts inserted therein can prevent the hexagonal slotted nut from loosening.

[0033] See also Figure 2 and Figure 3 In an example of the quick-change interface of the sling of the utility model, the rotary lock component 200 also includes a first bearing 250, and the first bearing 250 is located between the rotary lock main shaft 210 and the flange sleeve 220. The first bearing 250 can be of various types. In this embodiment, a deep groove ball bearing is preferred. The deep groove ball bearing is used to bear radial loads and improve the stability of the rotary lock main shaft 210, and can also reduce the friction between the rotary lock main shaft 210 and the flange sleeve 220.

[0034] See also Figure 2 and Figure 3 In an example of a quick-change interface for a sling of the present invention, the rotary lock component 200 also includes a second bearing 260, and a protruding stop portion 221 is provided on the inner wall of the flange sleeve 220, and the stop portion 221 is located on the side of the first bearing 250 away from the buckle structure 214, and the second bearing 260 is located between the rotary lock spindle 210 and the flange sleeve 220, and is located on the side of the stop portion 221 away from the first bearing 250. The second bearing 260 can be of various types. In this embodiment, a thrust ball bearing is preferably used. The thrust ball bearing is used to bear axial loads, which can improve the axial bearing capacity of the sling quick-change interface.

[0035] See also Figure 2 and Figure 3 In an example of the quick-change interface of the sling of the utility model, the rotary lock component 200 also includes a spacer sleeve 270, and the spacer sleeve 270 is mounted on the first section 211. The spacer sleeve 270 is located between the turning handle 230 and the second bearing 260. The spacer sleeve 270 is installed on the rotary lock main shaft 210 and fits tightly with the thrust ball bearing, which can achieve axial positioning of the second bearing 260 and avoid interference between the turning handle 230 and the flange sleeve 220.

[0036] See also Figure 2 and Figure 4In an example of the quick-change interface of the sling of the present invention, there are two rotary lock components 200. The two rotary lock components 200 are symmetrically designed to counterweight each other to improve their own stability. The rotating handle 230 includes a first connecting portion 231 and a second connecting portion 232 protruding to both sides. The two first connecting portions 231 are connected by a first connecting rod 300, and the two ends of the first connecting rod 300 are respectively hinged to the two first connecting portions 231. The two second connecting portions 232 are connected by a second connecting rod 400, and the two ends of the second connecting rod 400 are respectively hinged to the two second connecting portions 232. The first connecting rod 300 and the second connecting rod 400 are hinged to the two rotating handles 230 to form a double-link structure, and the synchronous rotation of the two rotating handles 230 can be achieved by manipulating one of the rotating handles 230.

[0037] Please refer to 1. Figure 4 and Figure 5 In an example of the quick-change interface of the sling of the utility model, a limiting component 500 is provided on the first connecting rod 300 or the second connecting rod 400. There can be various types of limiting components 500. The mounting seat 100 is provided with a first limiting hole 120 and a second limiting hole 130 which cooperate with the limiting component 500. When the limiting component 500 is inserted into the first limiting hole 120, the rotary lock component 200 can be limited to the first position. When the limiting component 500 is inserted into the second limiting hole 130, the rotary lock component 200 can be limited to the second position, thereby improving the stability of the rotary lock component 200 when locking with the lifting groove 710 and improving safety.

[0038] See also Figures 4 to 6 In an example of a quick-change interface for a sling of the present invention, the limiting component 500 includes a latch 510, a compression spring 520 and an axis fixing ring 530. The latch 510 passes through the first connecting rod 300, and the axis fixing ring 530 is fixedly connected to a side of the latch 510 close to the mounting seat 100. The compression spring 520 is arranged between the axis fixing ring 530 and the first connecting rod 300. The compression spring 520 is installed between the first connecting rod 300 and the axis fixing ring 530. After being compressed, the elastic force is relied on to help the latch 510 to be stably and quickly inserted into the first limiting hole 120 and the second limiting hole 130, and the problem of the latch 510 coming out due to the shaking of the hoisted object 700 can be avoided, thereby improving safety. The axis fixing ring 530 is used to fix the compression spring 520 and limit the axial movement of the latch 510.

[0039] See also Figure 1 and Figure 6In an example of a sling quick-change interface of the utility model, the sling quick-change interface also includes a guide member 600, and the guide member 600 is arranged on the side of the mounting seat 100 close to the lifting object 700. The guide member 600 is fixed to the mounting seat 100 by bolt connection, and is used for guiding the sling quick-change interface as a whole and the lifting object 700, so that the snap structure 214 of the sling quick-change interface is aligned with the lifting groove 710 of the lifting object 700. The sling quick-change interface has strong versatility and only needs to constrain the shape and size of the mounting seat 100.

[0040] See also Figure 1 and Figure 6 The working process of the sling quick-change interface of the utility model is as follows: when the crane is docking with the lifting object 700, the crane completes rapid guidance and positioning with the lifting object 700 through the guide piece 600 on the sling quick-change interface, and the remote-controlled servo manipulator clamps the latch 510 and lifts it to disengage from the first limiting hole 120, then rotates it to the right to the second limiting hole 130 and releases and puts down the latch 510, and the corresponding rotary lock spindle 210 changes from the unlocked state to the locked state, and the crane can be lifted up to complete the lifting of the sling and the lifting object 700; similarly, when the sling is separated, the remote-controlled servo manipulator clamps the latch 510 and lifts it to disengage from the second limiting hole 130, then rotates it to the left to the first limiting hole 120 and releases and puts down the latch 510, and the corresponding rotary lock spindle 210 changes from the locked state to the unlocked state, and the crane can be lifted up to complete the separation from the sling quick-change interface and the lifting object 700, which is easy for the operator to remotely operate as a whole and is safe, fast and convenient.

[0041] The utility model sling quick-change interface can switch the buckle structure between the first position and the second position by rotating the rotary lock main shaft, and when the buckle structure is in the first position, it can be inserted into the lifting groove. After being inserted into the lifting groove, the buckle structure is rotated to the second position. At this time, the crane realizes the locking with the lifting object through the sling quick-change interface. This setting can achieve rapid locking only by rotating the rotary lock main shaft, which improves the safety and convenience of the connection and fixation between the crane and the lifting object. Therefore, the utility model effectively overcomes some practical problems in the prior art and has a high utilization value and use significance. The above embodiments are only illustrative of the principles and effects of the utility model, and are not used to limit the utility model. Anyone familiar with this technology can modify or change the above embodiments without violating the spirit and scope of the utility model. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the relevant technical field without departing from the spirit and technical ideas disclosed by the utility model should still be covered by the claims of the utility model.

Claims

1. A sling quick-change interface, used to connect a hook and a lifting object, wherein a lifting groove is provided on the lifting object, characterized in that: include: A mounting seat, wherein the mounting seat is provided with a lifting ring that cooperates with the lifting hook; The rotary lock component comprises a rotary lock main shaft and a flange sleeve, wherein the flange sleeve is installed through the mounting seat, the rotary lock main shaft penetrates the flange sleeve and is rotatably connected with the flange sleeve, the rotary lock main shaft comprises a first section, a matching section and a second section, the matching section is rotatably connected with the flange sleeve, the first section extends out of the mounting seat and is located on the same side as the lifting ring, the second section extends out of the other side of the mounting seat, and a buckle structure is provided at one end of the second section; The buckle structure has a first position where it can enter and exit the lifting groove and a second position where it can be locked in the lifting groove.

2. The quick-change interface of the sling according to claim 1, characterized in that: The rotary lock component also includes a rotating handle, and the rotating handle is fixedly connected to the first section.

3. The quick-change interface of the sling according to claim 2, characterized in that: The rotary lock component also includes a fastener, which is detachably connected to the first section and is located on a side of the turning handle away from the mounting seat.

4. The quick-change interface of the sling according to claim 3, characterized in that: The spin lock component also includes a first bearing, which is located between the spin lock main shaft and the flange sleeve.

5. The quick-change interface of the spreader according to claim 4, characterized in that: The rotary lock component also includes a second bearing, and a protruding stop portion is provided on the inner wall of the flange sleeve, the stop portion is located on the side of the first bearing away from the snap structure, and the second bearing is located between the rotary lock main shaft and the flange sleeve, and is located on the side of the stop portion away from the first bearing.

6. The quick-change interface of the sling according to claim 5, characterized in that: The rotary lock component further includes a spacer sleeve, which is sleeved on the first section and located between the turning handle and the second bearing.

7. The spreader quick-change interface according to any one of claims 2 to 6, characterized in that: There are two rotary lock components, and the rotating handle includes a first connecting part and a second connecting part protruding to both sides, the two first connecting parts are connected by a first connecting rod, and the two ends of the first connecting rod are respectively hinged to the two first connecting parts, and the two second connecting parts are connected by a second connecting rod, and the two ends of the second connecting rod are respectively hinged to the two second connecting parts.

8. The quick-change interface of the spreader according to claim 7, characterized in that: A limiting component is disposed on the first connecting rod or the second connecting rod, and a first limiting hole and a second limiting hole matched with the limiting component are disposed on the mounting seat.

9. The quick-change interface of the sling according to claim 8, characterized in that: The limiting component includes a latch, a compression spring and a shaft fixing ring. The latch passes through the first connecting rod. The shaft fixing ring is fixedly connected to a side of the latch close to the mounting seat. The compression spring is arranged between the shaft fixing ring and the first connecting rod.

10. The quick-change interface of the spreader according to claim 1, characterized in that: The sling quick-change interface also includes a guide member, which is arranged on a side of the mounting seat close to the hoisted object.

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