Lifting appliance

Abstract

The utility model provides a lifting appliance. The lifting appliance comprises a supporting block, a self-discharging block and a locking block, the supporting block and the locking block are both connected with the self-discharging block in a sliding mode, and one end of the locking block penetrates through the supporting block and extends into the bottom of the supporting block. The supporting block comprises a base, two sliding rails are oppositely arranged on the upper surface of the base, and a clamping jaw is arranged at the bottom of the base; the self-discharging block comprises a first transverse plate and a second transverse plate, a connecting piece is arranged above the first transverse plate, a first sliding groove is formed in the bottom of the first transverse plate, a second sliding groove is formed in the upper surface of the second transverse plate, and the first sliding groove and the second sliding groove are oppositely arranged in a staggered mode; the locking block comprises a limiting rod and a locking rod, one end of the limiting rod is connected with the locking rod, a transverse rod is arranged on the limiting rod, and the transverse rod is in sliding connection with the first sliding groove and the second sliding groove. The lifting appliance disclosed by the utility model has a self-unloading function and is simple in structure.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting tools, in particular to a lifting tool. Background Art

[0002] At present, the transfer of the end head barrel adopts a vertical transfer method, that is, a crane is used to hang a lifting tool, and then the lifting tool grabs the end head barrel. After the crane moves to the relevant working position, the crane is lowered, and manual assistance is required to separate the end head barrel from the lifting tool to realize the transfer of the end head barrel. The lifting tool with a self-unloading function disengages from the end head barrel under the action of the self-unloading function to realize the transfer of the end head barrel. However, this kind of lifting tool has a complex structure, many vulnerable parts, and weak guiding ability. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a lifting tool to simplify the structure of the lifting tool with a self-unloading function.

[0004] To solve the above technical problem, the technical solution of the utility model is as follows:

[0005] The utility model provides a lifting tool, including:

[0006] A support block, a self-unloading block and a locking block, wherein the support block and the locking block are both slidably connected to the self-unloading block, and one end of the locking block passes through the support block and extends into the bottom of the support block;

[0007] The support block includes a base, two slide rails are oppositely arranged on the upper surface of the base, both of the two slide rails are slidably connected to the self-unloading block, and a claw is arranged at the bottom of the base;

[0008] The self-unloading block includes a first cross plate and a second cross plate, a connecting piece is arranged above the first cross plate, a first chute is arranged at the bottom of the first cross plate, a second chute is arranged on the upper surface of the second cross plate, the first chute and the second chute are arranged in a staggered and opposite manner, both the first cross plate and the second cross plate are slidably connected to the two slide rails, and the other end of the locking block passes through the first cross plate and the second cross plate;

[0009] The locking block includes a limiting rod and a locking rod, one end of the limiting rod is connected to the locking rod, the other end of the limiting rod passes through the first cross plate and the second cross plate, a cross bar is arranged on the limiting rod, the cross bar is slidably connected to the first chute and the second chute, one end of the locking rod passes through the base and is provided with a first pressing plate and a second pressing plate, and one end of the claw is located between the first pressing plate and the second pressing plate.

[0010] Optionally, a bracket is arranged at the bottom of the base, and the claw is rotatably connected to the bracket.

[0011] Optionally, at least two guiding claws are provided at the bottom of the base, and the at least two guiding claws and the clamping claws are evenly distributed at intervals at the bottom of the base.

[0012] Optionally, the support block further includes a first limiting plate and a second limiting plate, the first limiting plate and the second limiting plate are arranged in parallel between the two slide rails, and one end of the locking rod passes through the first limiting plate and the second limiting plate and extends below the base.

[0013] Optionally, a clamping block is provided on the locking rod, and a through hole through which the clamping block can pass is provided on the first limiting plate.

[0014] Optionally, the self-unloading block further includes a dust-proof cover, and the dust-proof cover is connected to the first cross plate and the second cross plate.

[0015] Optionally, the cross bar passes through the side wall of the limiting rod and is connected to the limiting rod, and a snap spring is provided between the cross bar and the side wall of the limiting rod.

[0016] Optionally, the first cross plate and the second cross plate are bolt-connected.

[0017] Optionally, both the first pressing plate and the second pressing plate are threadedly connected to the locking rod.

[0018] Optionally, the support block, the self-unloading block and the locking block are all made of stainless steel.

[0019] The above solution of the present utility model has at least the following beneficial effects:

[0020] With the above solution of the present utility model, through the mutual cooperation of the self-unloading block, the support block and the locking block, it is possible to fix the lid of the end bucket on the lifting tool and separate the lid from the lifting tool without manual assistance, realizing the self-unloading function of the lifting tool, and having the advantages of simple structure and convenient operation. Description of the Drawings

[0021] Figure 1 is a schematic structural diagram of the lifting tool according to an embodiment of the present utility model;

[0022] Figure 2 is a schematic structural diagram of the support block according to an embodiment of the present utility model;

[0023] Figure 3 is a schematic structural diagram of the self-unloading block according to an embodiment of the present utility model;

[0024] Figure 4 is a schematic structural diagram of the locking block according to an embodiment of the present utility model;

[0025] Figure 5 is a bottom view of the lifting tool according to an embodiment of the present utility model;

[0026] Figure 6 This is a schematic structural view of a lifting tool with a dust cover according to an embodiment of the present utility model.

[0027] Explanation of reference numerals in the drawings: 1 - support block, 11 - base, 111 - bracket, 112 - groove, 12 - slide rail, 13 - claw, 14 - guiding claw, 15 - first limiting plate, 151 - through hole, 16 - second limiting plate, 17 support block, 2 - self-unloading block, 21 - first cross plate, 211 - first chute, 212 - first limiting block, 22 - second cross plate, 221 - second chute, 222 - second limiting block, 23 - connecting member, 24 - dust cover, 3 - locking block, 31 - limiting rod, 311 - cross bar, 32 - locking rod, 321 - first pressing plate, 322 - second pressing plate, 323 - clamping block, 4 - end bucket cover. Detailed implementation manners

[0028] Hereinafter, exemplary embodiments of the present utility model will be described in more detail with reference to the drawings. Although the exemplary embodiments of the present utility model are shown in the drawings, it should be understood that the present utility model can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided so that the present utility model can be more thoroughly understood and the scope of the present utility model can be completely conveyed to those skilled in the art.

[0029] As Figures 1 to 5 shown, an embodiment of the present utility model provides a lifting tool, comprising:

[0030] A support block 1, a self-unloading block 2 and a locking block 3, wherein the support block 1 and the locking block 3 are both slidably connected to the self-unloading block 2, and one end of the locking block 3 passes through the support block 1 and extends into the bottom of the support block 1;

[0031] The support block 1 includes a base 11, and two slide rails 12 are oppositely arranged on the upper surface of the base 11. Both of the two slide rails 12 are slidably connected to the self-unloading block 2, and a claw 13 is provided at the bottom of the base 11;

[0032] The self-unloading block 2 includes a first cross plate 21 and a second cross plate 22. A connecting member 23 is provided above the first cross plate 21. A first chute 211 is provided at the bottom of the first cross plate 21, and a second chute 221 is provided on the upper surface of the second cross plate 22. The first chute 211 and the second chute 221 are arranged in a staggered and opposite manner. Both the first cross plate 21 and the second cross plate 22 are slidably connected to the two slide rails 12, and the other end of the locking block 3 passes through the first cross plate 21 and the second cross plate 22;

[0033] The locking block 3 includes a limiting rod 31 and a locking rod 32. One end of the limiting rod 31 is connected to the locking rod 32. The other end of the limiting rod 31 passes through the first cross plate 21 and the second cross plate 22. A cross bar 311 is provided on the limiting rod 31, and the cross bar 311 is slidably connected to the first sliding groove 211 and the second sliding groove 221. One end of the locking rod 32 passes through the base 11 and is provided with a first pressing plate 321 and a second pressing plate 322. One end of the claw 13 is located between the first pressing plate 321 and the second pressing plate 322.

[0034] The lifting tool proposed in the embodiment of the present invention can, through the mutual cooperation of the self-unloading block, the support block and the locking block, realize the fixation of the lid of the end bucket on the lifting tool and the separation of the lid from the lifting tool without manual assistance, so as to achieve the self-unloading function of the lifting tool, and has the advantages of simple structure and convenient operation.

[0035] As Figure 2 shown, in an alternative embodiment of the present invention, a bracket 111 is provided at the bottom of the base 11, and the claw 13 is rotatably connected to the bracket 111.

[0036] Specifically, a pin can be passed through the claw and the bracket to fix the claw on the bracket. At the same time, the claw can rotate on the pin to realize the clamping and separation of the lid of the end bucket.

[0037] As Figure 2 and Figure 5 shown, in an alternative embodiment of the present invention, at least two guiding claws 14 are provided at the bottom of the base 11, and the at least two guiding claws 14 and the claw 13 are evenly distributed at the bottom of the base 11.

[0038] Specifically, three guiding claws and three claws are provided at the bottom of the base. The guiding claws and the claws are evenly distributed at the bottom of the base, that is, one claw is arranged between two guiding claws, and one guiding claw is provided between two claws. The guiding claws can achieve accurate positioning, making the center of the lifting tool coincide with the center of the end bucket, preventing the phenomenon of inclination due to the inability of one side claw to clamp the end bucket during hoisting, and being beneficial to improving the safety and reliability of the use of the lifting tool.

[0039] As Figure 1 and Figure 2 shown, in an alternative embodiment of the present invention, the support block 1 further includes a first limiting plate 15 and a second limiting plate 16. The first limiting plate 15 and the second limiting plate 16 are arranged in parallel between the two sliding rails 12. One end of the locking rod 32 passes through the first limiting plate 15 and the second limiting plate 16 and extends below the base 11.

[0040] Specifically, the first limit plate and the second limit plate are arranged at the lower position of the slide rail, leaving sufficient moving space for the self-unloading block. Through holes are provided on the first limit plate and the second limit plate for the locking rod to pass through. The first limit plate and the second limit plate can not only provide support for the slide rail to improve the stability of the support block, but also limit the up and down movement of the locking rod to improve the effectiveness of the self-unloading function.

[0041] like Figure 2 and Figure 4 As shown, in an optional embodiment of the present invention, a clamping block 323 is provided on the locking rod 32 , and a through hole 151 is provided on the first limiting plate 15 for the clamping block 323 to pass through.

[0042] Specifically, the clamping block can be a rectangular block welded on the locking rod and chamfered. Correspondingly, a rectangular through hole is opened at the center of the first limit plate. When the self-unloading block moves up and down, the locking rod and the cross bar rotate and move along the axis (up and down directions), so that the clamping block and the through hole are combined and separated under the specified movement.

[0043] like Figure 6 As shown, in an optional embodiment of the present invention, the dump block 2 further includes a dust cover 24 , and the dust cover 24 is connected to the first transverse plate 21 and the second transverse plate 22 .

[0044] Specifically, there can be two dust covers, which are arranged in the length direction of the first transverse plate and the second transverse plate to maintain the cleanliness of the internal environment of the dump block.

[0045] like Figure 1 and Figure 4 As shown, in an optional embodiment of the present invention, the cross bar 311 passes through the side wall of the limiting rod 31 and is connected to the limiting rod 31 , and a retaining spring is provided between the cross bar 311 and the side wall of the limiting rod 31 .

[0046] Specifically, a hole is opened on the side wall below the limit rod, for the cross bar to pass through the hole and be fixed on the limit rod, the cross bar passes through the middle part of the limit rod, and both ends are hung on the bottom of the first slide groove, the cross bar and the limit rod are connected in such a way that the cross bar passes through the hole in the middle part of the limit rod, and the cross bar and the side wall connection of the limit rod are fixed with a retaining spring, so that the cross bar and the limit rod are combined into a whole.

[0047] like Figure 1 As shown, in an optional embodiment of the present invention, the first transverse plate 21 and the second transverse plate 22 are connected by bolts.

[0048] Specifically, the first cross plate and the second cross plate are connected by bolts and nuts, which is convenient for disassembly, assembly and replacement and helps to simplify the overall structure.

[0049] In an alternative embodiment of the present utility model, both the first pressing plate 321 and the second pressing plate 322 are threadedly connected to the locking rod 32.

[0050] Specifically, threads are provided at intervals at the position where the locking rod extends below the base, facilitating threaded connection with the first pressing plate and the second pressing plate, and being convenient for disassembly, assembly and replacement, thereby improving applicability.

[0051] In an alternative embodiment of the present utility model, the materials of the support block 1, the self-unloading block 2 and the locking block 3 are all stainless steel.

[0052] Specifically, stainless steel has the advantages of being easy to clean, corrosion-resistant, high-temperature resistant, lightweight and portable. Using stainless steel for the support block, the self-unloading block and the locking block can extend the service life of the lifting tool and facilitate movement and cleaning.

[0053] A specific implementation manner of the lifting tool according to the embodiment of the present utility model is as follows:

[0054] As Figure 1 shown, the support block 1 includes a base 11. The base 11 is circular, and a hole is provided at the center position for the locking rod 32 to pass through the hole and extend into the bottom of the base 11. Three grooves 112 are provided on the hole, and one end of the claw 13 can be accommodated in the grooves 112. The other end of the claw 13 is separated from the lid of the end barrel, realizing the separation of the lid of the end barrel from the lifting tool. Two slide rails 12 are arranged relatively vertically on the upper surface of the base 11. A first limiting plate 15 and a second limiting plate 16 are arranged between the two slide rails 12. The first limiting plate 15 and the second limiting plate 16 are arranged in parallel. A rectangular through hole 151 is provided at the center position of the first limiting plate 15 for the locking rod 32 and the block 323 provided thereon to pass through the rectangular through hole 151. A round hole is provided at the center position of the second limiting plate 16 for the locking rod 32 to pass through the round hole. Support blocks 17 are provided on the side surfaces at the bottoms of the two slide rails 12. The support blocks 17 are right-angled triangles, the bottoms of which are connected to the upper surface of the base 11, and one side wall of which is connected to the slide rails 12 for supporting the slide rails 12.

[0055] As Figure 2 and Figure 5 shown, three claws 13 and three guiding claws 14 are provided at the bottom of the base 11. The claws 13 and the guiding claws 14 are evenly distributed at intervals at the bottom of the base 11. The claws 13 are installed on the bracket 111 at the bottom of the base 11 through pins. The size of the claws 13 meets the dimensional requirements of the inner edge of the end barrel and can effectively clamp the end barrel. The guiding claws 14 can achieve accurate positioning, align the center of the lifting tool with the center of the end barrel, and prevent the phenomenon of inclination when one of the claws 13 cannot clamp the end barrel during hoisting.

[0056] As Figure 1 and Figure 3As shown, the self-unloading block 2 includes a first transverse plate 21 and a second transverse plate 22, which are fixedly connected by bolts. Both ends of the first transverse plate 21 and the second transverse plate 22 are provided with slots for slidingly connecting with the slide rail 12 to realize flexible movement of the self-unloading block 2 on the slide rail 12. A connecting piece 23 is provided on the first transverse plate 21, and a hook of a crane is used to hook the connecting piece 23 to realize the movement of the end bucket driven by the sling. A baffle can be set in the middle of the connecting piece 23 to limit the upward movement path of the limit rod 31. Holes are opened in the middle of the first transverse plate 21 and the second transverse plate 22, and the limit rod 31 passes through these two holes to contact the connecting piece 23. A plurality of first limit blocks 212 are evenly spaced apart at the bottom of the first cross plate 21, and a first slide groove 211 is disposed between every two first limit blocks 212; a plurality of second limit blocks 222 are evenly spaced apart on the upper surface of the second cross plate 22, and a second slide groove 221 is disposed between every two second limit blocks 222; wherein the first limit blocks 212 and the second limit blocks 222 have the same shape but different installation angles; the bottom surfaces of the limit blocks are mounted on the cross plate, the top surfaces are chamfered, and the side walls are provided with inclined surfaces; the first limit blocks 212 and the second limit blocks 222 are alternately arranged, that is, the positions of the first limit blocks 212 and the second slide grooves 221 correspond to each other, and the positions of the second limit blocks 222 and the first slide grooves 211 correspond to each other, so that the cross bar 311 can slide into the second slide grooves 221 at different positions through the inclined surfaces on the limit blocks and the first limit blocks 212.

[0057] like Figure 1 , Figure 4 and Figure 5 As shown, the locking block 3 includes a limiting rod 31 and a locking rod 32. Both the limiting rod 31 and the locking rod 32 are cylindrical. The diameter of the limiting rod 31 is larger than the diameter of the locking rod 32. In a static state, the limiting rod 31 is located between the first transverse plate 21 and the second transverse plate 22, and is surrounded by the first limiting block 212 and the second limiting block 222. A cross bar 311 is provided at the lower part of the limiting rod 31. The cross bar 311 passes through the middle of the limiting rod 31, and the two ends are hung on the bottom of the first slide groove 211. The connection between the cross bar 311 and the limiting rod 31 is that the cross bar 311 passes through the through hole in the middle of the limiting rod 31, and the two sides are fixed with a retaining spring, so that the cross bar 311 and the limiting rod 31 are combined into a whole. A rectangular block 323 is welded on the locking rod 32 and chamfered. Correspondingly, a rectangular through hole 151 is opened on the first limit plate 15. When the self-unloading block 1 moves up and down, the locking rod 32 and the cross bar 311 rotate and move along the axis. Therefore, under the specified movement, the block 323 is combined with and separated from the through hole 151. The first and second circular pressing plates 321 and 322 arranged in parallel are connected below the locking rod 32 through a round nut.

[0058] like Figure 6As shown in the figure, to ensure smooth movement of the cross bar 311 within the first sliding groove 211 of the tipping block 1, grease is applied to all contact surfaces, and a transparent enclosure is placed over the first and second cross plates 21 and 22 to maintain a clean internal environment for the tipping block 1.

[0059] One working embodiment of the lifting device according to the embodiment of the present utility model is as follows:

[0060] It should be noted that the end bucket cover and the end bucket are integrated. By fixing / separating the lifting device from the end bucket cover, the transportation of the end bucket can be achieved. Therefore, in this embodiment, the end bucket cover is taken as an example for description.

[0061] The first sliding groove 211 inside the tipping block 1 provides a movement path for the cross bar 311. During the lifting operation, when the tipping block 1 moves up and down once, the cross bar 311 will move once to the right second sliding groove 221 under the limitation of the first limiting block 212 and the second limiting block 222, that is, the cross bar 311 and the locking rod 32 rotate 45° to the right. Therefore, after two up and down movements, the cross bar 311 and the locking rod 32 complete a 90° rotation, realizing the locking and unlocking of the end bucket cover 4.

[0062] After the end bucket is lifted to the designated position, the lifting device is lowered. At this time, the tipping block 1 descends. Under the action of the first limiting block 212 and the second limiting block 222, the limiting rod 31, the cross bar 311, and the locking rod 32 rotate. After the end bucket lands, the tipping block 1 is continuously lifted, and the limiting rod 31, the cross bar 311, and the locking rod 32 continue to rotate. During one up and down movement, the cross bar 311 moves once to the right first sliding groove 211, that is, rotates 45°. Since it is necessary to rotate 90° to release the end bucket cover 4, the tipping block 1 needs to complete another up and down movement. Therefore, from the clamped state to the released state, the tipping block 1 needs to complete two up and down movements. Similarly, from the released state to the clamped state, the tipping block 1 also needs to complete two up and down movements.

[0063] As Figure 1 and Figure 5 shown, when the locking rod 32 moves downward, the first pressing plate 321 contacts the inner end of the claw 13. The first pressing plate 321 then forces the claw 13 to rotate along the center line of the pin shaft, and the outer end of the claw 13 moves upward to clamp the inner edge of the end bucket cover 4, realizing the clamping of the end bucket. It should be noted that the first pressing plate 321 and the claw 13 only contact but are not connected during operation. When the locking rod 32 moves upward, the second pressing plate 322 raises the inner end of the claw 13 to contact the groove 112 on the base 11. The outer end of the claw 13 lowers and moves away from the end bucket cover 4, forming a certain angle, and the end bucket cover 4 disengages from the lifting device.

[0064] The spreader of the embodiment of the utility model has a simple structure and no obvious vulnerable parts, which can effectively reduce the failure rate during use and ensure the timeliness of waste transfer; it is easy to operate and has a high guiding effect, which can effectively align the end bucket with the center line of the spreader, avoid the problem of loosening of one side of the claw during hoisting, and can simplify the operation steps while completing the target operation.

[0065] The above is the preferred embodiment of the utility model. It should be noted that for those of ordinary skill in the art, without departing from the principle of the utility model, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the utility model.

Claims

1. A sling, characterized in that: include: A supporting block (1), a self-unloading block (2) and a locking block (3), wherein the supporting block (1) and the locking block (3) are both slidably connected to the self-unloading block (2), and one end of the locking block (3) passes through the supporting block (1) and extends into the bottom of the supporting block (1); The support block (1) comprises a base (11), the upper surface of the base (11) is provided with two slide rails (12) facing each other, the two slide rails (12) are both slidably connected to the self-unloading block (2), and a clamping claw (13) is provided at the bottom of the base (11); The self-unloading block (2) comprises a first transverse plate (21) and a second transverse plate (22); a connecting piece (23) is provided above the first transverse plate (21); a first slide groove (211) is provided at the bottom of the first transverse plate (21); a second slide groove (221) is provided on the upper surface of the second transverse plate (22); the first slide groove (211) and the second slide groove (221) are arranged opposite to each other in an alternating manner; the first transverse plate (21) and the second transverse plate (22) are both slidably connected to the two slide rails (12); and the other end of the locking block (3) passes through the first transverse plate (21) and the second transverse plate (22); The locking block (3) comprises a limiting rod (31) and a locking rod (32), one end of the limiting rod (31) is connected to the locking rod (32), the other end of the limiting rod (31) passes through the first cross plate (21) and the second cross plate (22), a cross bar (311) is provided on the limiting rod (31), the cross bar (311) is slidably connected with the first slide groove (211) and the second slide groove (221), one end of the locking rod (32) passes through the base (11), and is provided with a first pressing plate (321) and a second pressing plate (322), one end of the clamping claw (13) is located between the first pressing plate (321) and the second pressing plate (322).

2. The sling according to claim 1, characterized in that: A bracket (111) is provided at the bottom of the base (11), and the clamping claw (13) is rotatably connected to the bracket (111).

3. The sling according to claim 1, characterized in that: At least two guide claws (14) are provided at the bottom of the base (11); the at least two guide claws (14) and the clamping claws (13) are evenly distributed at intervals at the bottom of the base (11).

4. The sling according to claim 1, characterized in that: The support block (1) further comprises a first limit plate (15) and a second limit plate (16), wherein the first limit plate (15) and the second limit plate (16) are arranged in parallel between the two slide rails (12), and one end of the locking rod (32) passes through the first limit plate (15) and the second limit plate (16) and extends under the base (11).

5. The sling according to claim 4, characterized in that: The locking rod (32) is provided with a clamping block (323), and the first limiting plate (15) is provided with a through hole (151) through which the clamping block (323) can pass.

6. The sling according to claim 1, characterized in that: The dump block (2) further comprises a dust cover (24), wherein the dust cover (24) is connected to the first transverse plate (21) and the second transverse plate (22).

7. The sling according to claim 1, characterized in that: The cross bar (311) passes through the side wall of the limiting rod (31) and is connected to the limiting rod (31); a clamping spring is provided between the cross bar (311) and the side wall of the limiting rod (31).

8. The sling according to claim 1, characterized in that: The first transverse plate (21) and the second transverse plate (22) are connected by bolts.

9. The sling according to claim 1, characterized in that: The first pressing plate (321) and the second pressing plate (322) are both threadedly connected to the locking rod (32).

10. The sling according to claim 1, characterized in that: The support block (1), the dump block (2) and the locking block (3) are all made of stainless steel.

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