Anti-falling lifting appliance of pump station portal crane

Abstract

The utility model relates to an anti-falling lifting appliance of a pump station portal crane, which comprises a lifting frame, a lifting ring is arranged at the top of the lifting frame, two lifting components used for being connected with lifting lugs of a gate are arranged at the bottom of the lifting frame, each lifting component comprises a first lifting chain, and a second lifting chain is arranged at the bottom of the lifting frame. The two ends of the first lifting chain are respectively and fixedly connected with a connecting block, a U-shaped lifting ring is connected in the two connecting blocks, a threaded section is formed at the tail end of the U-shaped lifting ring, the two connecting blocks are limited on the U-shaped lifting ring through a connecting nut, and the middle of the first lifting chain is connected with the lifting frame through a second lifting chain. And the length of the first lifting chain is greater than the width of the U-shaped lifting ring, so that the U-shaped lifting ring is removed from the other connecting block under the condition that one connecting block is not detached. The anti-falling lifting appliance of the pump station portal crane not only can be firmly connected with a gate, but also can ensure the use safety and the disassembly and assembly convenience.

Description

Technical Field

[0001] The utility model relates to the field of pumping stations, in particular to an anti-falling hoisting device for a gantry crane in a pumping station. Background Art

[0002] Gantry cranes are widely used in water conservancy and hydropower projects to open, close, and repair gates. When lifting a gate with a gantry crane, a sling is primarily used to connect the gate. Existing slings are relatively simple in structure, typically using two sets of chains with conventional hooks at the lower ends to connect to the gate's two lifting lugs.

[0003] During the process of lifting the gate, the gate will shake due to the influence of water dynamics or wind force. This shaking will be more obvious especially when the gate is separated from the gate channel due to maintenance. The loose side lifting ear can easily slip out of the side opening hook when the two chains are loosened and tightened. At this time, the maintenance personnel who are close to the gate for maintenance are at risk of being injured.

[0004] In order to solve the problem of side slippage, some hoists have begun to use hooks with hooks. Although this type of hook increases the stability of the connection, because the lifting gate is a heavy object, the hook used will also be stronger. When hanging it with the lifting ear, it is not only difficult to press, but also easy to pinch the hand, which is not safe enough. Utility Model Content

[0005] In order to make up for the deficiencies of the prior art, the utility model provides an anti-falling sling for a pump station gantry crane, which can not only firmly connect the gate but also ensure safety in use and ease of assembly and disassembly.

[0006] The technical solution adopted by the present invention to solve the above technical problems is:

[0007] The invention relates to a fall prevention sling for a pump station gantry crane, comprising a hanger, a lifting ring being provided at the top of the hanger, and two lifting assemblies for connecting to the lifting ears of a gate being provided at the bottom of the hanger, each lifting assembly comprising a first lifting chain, a connecting block being fixed to each end of the first lifting chain, a U-shaped lifting ring being inserted into the two connecting blocks, a threaded section being formed at the end of the U-shaped lifting ring, and a connecting nut being used to limit the two connecting blocks to the U-shaped lifting ring, a middle part of the first lifting chain being connected to the hanger via a second lifting chain, a length of the first lifting chain being greater than the width of the U-shaped lifting ring, so that the U-shaped lifting ring can be removed from the other connecting block without removing one of the connecting blocks.

[0008] Furthermore, a protective cap is provided outside the nut.

[0009] The utility model adopts the above technical solution, which has the advantages that the anti-falling sling of the pump station gantry crane can not only firmly connect the gate, but also ensure the safety of use and a certain degree of convenience in disassembly and assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic structural diagram of one embodiment of the present invention;

[0011] Figure 2 for Figure 1 A schematic diagram of the enlarged structure of the middle part A;

[0012] Figure 3 for Figure 2 Schematic diagram of the dismantling structure of the connecting block on one side;

[0013] Figure 4 for Figure 2 Schematic diagram of the structure covered with a protective cap;

[0014] Figure 5 for Figure 1 Schematic diagram of the structure applied to the gate.

[0015] In the figure, 1. hanger, 2. lifting ring, 3. lifting assembly, 4. gate; 31. first lifting chain, 32. connecting block, 33. U-shaped lifting ring, 34. nut, 35. second lifting chain, 36. protective cap; 41. lifting ear. DETAILED DESCRIPTION

[0016] In order to clearly illustrate the technical features of this solution, the present invention is described in detail below through specific implementation methods and in conjunction with the accompanying drawings.

[0017] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present application. Throughout this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0018] like Figure 1-5As shown, in this embodiment, the anti-fall sling of the pump station gantry crane includes a hanger 1, a lifting ring 2 is provided on the top of the hanger 1, and two lifting components 3 for connecting to the lifting ears 41 of the gate 4 are provided at the bottom of the hanger 1. Each lifting component 3 includes a first lifting chain 31, and the two ends of the first lifting chain 31 are respectively fixed with a connecting block 32, and U-shaped lifting rings 33 are inserted in the two connecting blocks 32. The ends of the U-shaped lifting rings 33 are formed with threaded sections, and the two connecting blocks 32 are limited to the U-shaped lifting rings 33 by connecting nuts 34. The middle part of the first lifting chain 31 is connected to the hanger 1 through a second lifting chain 35. The length of the first lifting chain 31 is greater than the width of the U-shaped lifting ring 33, so that the U-shaped lifting ring 33 can be removed from the other connecting block without removing one of the connecting blocks 32.

[0019] During use, the lifting ring of the anti-fall sling is connected to the crane. When lifting, the two lifting components are connected to the two lifting ears of the gate respectively. Specifically, the nuts on one side are removed and the movable connecting block is removed. Due to the use of the first lifting chain 31, the U-shaped lifting ring can be easily removed from the connecting block. Then, the U-shaped lifting ring is rotated to connect with the lifting ear. After the connection is connected, the connecting block is inserted and the nuts are installed. This completes the connection with one side of the gate. The other side can be connected in the same way.

[0020] The above-mentioned hanging assembly can not only firmly connect the gate, but also avoid the phenomenon of pinching hands during disassembly and assembly, which has a certain degree of safety. In addition, the disassembly and assembly process of the gate and the hanging assembly is also relatively easy, and since it is a one-sided disassembly and assembly, its efficiency can also be guaranteed.

[0021] In one specific embodiment, a protective cap 36 is provided outside the nut 34 to prevent the nut from rusting due to rain.

[0022] The above specific implementation methods cannot be used as a limitation on the protection scope of the present utility model. For those skilled in the art, any replacement, improvement or transformation made to the implementation methods of the present utility model falls within the protection scope of the present utility model.

[0023] Anything not described in detail in the present invention is well known to those skilled in the art.

Claims

1. An anti-fall lifting device for a pump station gantry crane, characterized in that: It includes a hanger, a lifting ring is provided on the top of the hanger, and two lifting components for connecting to the lifting ears of the gate are provided at the bottom of the hanger, each lifting component includes a first lifting chain, and the two ends of the first lifting chain are respectively fixed with a connecting block, and U-shaped lifting rings are inserted in the two connecting blocks. The ends of the U-shaped lifting rings are formed with threaded sections, and the two connecting blocks are limited to the U-shaped lifting rings by connecting nuts. The middle part of the first lifting chain is connected to the hanger through a second lifting chain. The length of the first lifting chain is greater than the width of the U-shaped lifting ring, so that the U-shaped lifting ring can be removed from the other connecting block without removing one of the connecting blocks.

2. The anti-fall lifting device for the pump station gantry crane according to claim 1, characterized in that: A protective cap is also provided outside the nut.

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