Lifting tools and hoisting equipment

Abstract

This utility model relates to the field of lifting technology and discloses a lifting device and lifting equipment. The lifting device includes: four fixed sections, multiple adjusting sections, and four connecting devices. The multiple adjusting sections and the four fixed sections form a rectangular frame. At least one adjusting section is provided between two adjacent fixed sections, and each adjusting section is detachably connected to an adjacent adjusting section or fixed section. The four connecting devices are arranged one-to-one with the four fixed sections. In any pair of corresponding connecting devices and fixed sections, the connecting device is connected to the fixed section and is used for detachable connection with the lifting rope. First, based on the size of the equipment to be lifted under actual working conditions, an appropriate number of adjusting sections are selected between any two adjacent fixed sections to ultimately form a rectangular frame adapted to the equipment being lifted. This lifting device can adapt to equipment with different structures and also avoid interference between the equipment being lifted and the lifting device, ensuring the stability of the lifting process.

Description

Technical Field

[0001] This utility model relates to the field of hoisting technology, and in particular to a hoisting tool and hoisting equipment. Background Technology

[0002] In many fields such as modern engineering construction, lifting equipment is often needed to lift mechanical equipment in order to meet the need for rapid deployment of equipment in areas with complex terrain and inconvenient transportation.

[0003] However, the existing lifting process still has a series of problems to be solved. Taking the use of helicopters to lift large equipment such as geological drilling rigs as an example, most of the commonly used helicopter lifting equipment is of general design and cannot flexibly adjust its structure to fit the equipment being lifted. As a result, some protruding parts of the equipment being lifted may interfere with the lifting equipment during the lifting process. This may not only damage the parts of the equipment being lifted, but also seriously affect the stability of the lifting, causing significant shaking during the lifting process and increasing the risk of collision with surrounding objects or even crashing the aircraft.

[0004] Therefore, how to design a lifting device that can be adapted to lifting equipment with different structures, while avoiding interference between the lifting equipment and the lifting device and ensuring the stability of the lifting process, has become a technical problem that urgently needs to be solved in this field. Utility Model Content

[0005] The purpose of this utility model is to at least solve the technical problem of how to design a lifting device that can be adapted to lifting equipment with different structures, while also avoiding interference between the lifting equipment and the lifting device, and ensuring the stability of the lifting process. This purpose is achieved through the following technical solution:

[0006] In a first aspect, this utility model proposes a lifting device, comprising: four fixed sections, each fixed section including a first fixed sub-section and a second fixed sub-section connected to each other, the first fixed sub-section and the second fixed sub-section being perpendicular to each other; a plurality of adjusting sections, which together with the four fixed sections form a rectangular frame, the four fixed sections constituting the four corners of the rectangular frame; at least one adjusting section is provided between any two adjacent fixed sections, each adjusting section being detachably connected to an adjacent adjusting section or fixed section; and four connecting devices, which are provided one-to-one with the four fixed sections, wherein in any set of corresponding connecting devices and fixed sections, the connecting device is connected to the fixed section, and the connecting device is used for detachable connection with a lifting rope.

[0007] Before connecting this type of lifting sling to the equipment being lifted, the size of the rectangular frame can be adjusted according to the dimensions of the equipment. Specifically, based on the actual working conditions, an appropriate number of adjusting sections are selected between any two adjacent fixed sections to ultimately form a rectangular frame adapted to the equipment. During lifting, four sets of lifting ropes are connected to four corresponding connecting devices, and then the two ends of each set of lifting ropes are connected to the lifting device and the equipment being lifted, thus completing the preparation work. Finally, the lifting device is activated to lift the equipment. Therefore, this type of lifting sling, while adaptable to lifting equipment with different structures, also avoids interference between the equipment and the sling, ensuring the stability of the lifting process.

[0008] In some embodiments of this utility model, the first fixed section and the second fixed section have the same length, and in any pair of corresponding connecting devices and fixed sections, the connecting device is installed at the connection between the first fixed section and the second fixed section.

[0009] In some embodiments of this utility model, in each fixed section, a flange is provided at the end of the first fixed subsection away from the second fixed subsection, and a flange is provided at the end of the second fixed subsection away from the first fixed section; a flange is provided at each end of each adjusting section, and each adjusting section is flange-connected to the adjusting section or fixed section adjacent to it.

[0010] In some embodiments of this utility model, the connecting device includes a lifting lug, which includes: an upper lifting lug configured to be detachably connected to the lifting device via a top lifting rope; and a lower lifting lug configured to be detachably connected to the equipment being lifted via a bottom lifting rope.

[0011] In some embodiments of this utility model, the upper lifting lug has an upper mounting hole, the lower lifting lug has a lower mounting hole, and the connecting device further includes: an upper shackle, which is detachably connected to the upper mounting hole and is also detachably connected to the top lifting rope; and a lower shackle, which is detachably connected to the lower mounting hole and is also detachably connected to the bottom lifting rope.

[0012] In some embodiments of this utility model, the upper shackle includes: an upper retaining ring having a first notch, the upper retaining ring being detachably connected to an upper mounting hole; and a first fixing pin being detachably connected to the upper retaining ring, the first fixing pin being used to seal the first notch so that the upper shackle as a whole forms a closed ring structure.

[0013] In some embodiments of this utility model, the lower shackle includes: a lower retaining ring having a second notch; and a second fixing pin detachably connected to the lower retaining ring. The second fixing pin is used to seal the second notch so that the lower shackle as a whole forms a closed annular structure, and the second fixing pin is installed in the lower mounting hole.

[0014] Secondly, this utility model proposes a hoisting device, comprising: a hoisting device; any of the aforementioned lifting tools; four top hoisting ropes, each corresponding to one of the four connecting devices, one end of each top hoisting rope being detachably connected to the hoisting device, and the other end of each top hoisting rope being detachably connected to the connecting device corresponding to the top hoisting rope; and four bottom hoisting ropes, each corresponding to one of the four connecting devices, one end of each bottom hoisting rope being detachably connected to the connecting device corresponding to the bottom hoisting rope, and the other end of each bottom hoisting rope being detachably connected to the equipment being hoisted.

[0015] In some embodiments of this utility model, the lifting device is a helicopter.

[0016] In some embodiments of this utility model, when the hoisting equipment is lifted by the lifting equipment, the angle between the top hoisting rope and the horizontal direction is in the range of 45°-60°.

[0017] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0018] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0019] Figure 1 This is a schematic diagram of the lifting device provided in an embodiment of the present invention at an angle;

[0020] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0021] Figure 3 This is a schematic diagram of the lifting device provided in an embodiment of the present invention from another angle;

[0022] Figure 4 for Figure 3 Enlarged view at point B in the middle;

[0023] Figure 5 This is a simplified schematic diagram of part of the structure of the hoisting equipment provided in this embodiment of the utility model when hoisting the equipment being lifted.

[0024] The attached figures are labeled as follows:

[0025] 10. Lifting equipment;

[0026] 100. Fixed section; 110. First fixed subsection; 120. Second fixed subsection;

[0027] 200. Adjustment section;

[0028] 300. Connecting device; 310. Lifting lug; 311. Upper lifting lug; 3111. Upper mounting hole; 312. Lower lifting lug; 320. Upper shackle; 3201. Upper shackle through hole; 321. Upper retaining ring; 322. First fixing pin; 330. Lower shackle; 3301. Lower shackle through hole; 331. Lower retaining ring; 332. Second fixing pin;

[0029] 400. Flange;

[0030] 20. Lifting ropes; 21. Top lifting ropes; 22. Bottom lifting ropes;

[0031] a. The equipment being lifted;

[0032] c. Center of gravity. Detailed Implementation

[0033] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0034] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “described” as used herein may also include the plural forms. The terms “comprising,” “including,” “containing,” and “having” are inclusive and therefore indicate the presence of the stated features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not construed as requiring them to be performed in a particular order described or illustrated unless the order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.

[0035] Although terms such as first, second, third, etc., may be used in this document to describe multiple elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence. Therefore, the first element, component, region, layer, or segment discussed below may be referred to as the second element, component, region, layer, or segment without departing from the teachings of the exemplary embodiments.

[0036] For ease of description, spatial relative terms may be used in the text to describe the relationship of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "over," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure is flipped, an element described as "below other elements or features" or "below other elements or features" would subsequently be oriented as "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions), and the spatial relative descriptors used in the text will be interpreted accordingly.

[0037] Figure 1 This is a schematic diagram of the lifting device provided in an embodiment of the present invention at an angle; Figure 2 for Figure 1 Enlarged view of point A in the middle; Figure 3 This is a schematic diagram of the lifting device provided in an embodiment of the present invention from another angle; Figure 4 for Figure 3 Enlarged view at point B; as shown Figures 1 to 4As shown, this utility model embodiment provides a lifting device 10, including: four fixed sections 100, each fixed section 100 including a first fixed sub-section 110 and a second fixed sub-section 120 connected to each other, the first fixed sub-section 110 and the second fixed sub-section 120 being perpendicular to each other; a plurality of adjusting sections 200, which together with the four fixed sections 100 form a rectangular frame, the four fixed sections 100 constituting the four corners of the rectangular frame; at least one adjusting section 200 is provided between any two adjacent fixed sections 100, each adjusting section 200 being detachably connected to the adjusting section 200 or the fixed section 100 adjacent to it; and four connecting devices 300, which are arranged one-to-one with the four fixed sections 100, in any set of corresponding connecting devices 300 and fixed sections 100, the connecting device 300 is connected to the fixed section 100, and the connecting device 300 is used for detachable connection with the lifting rope 20.

[0038] In this embodiment, before connecting the lifting device 10 to the equipment a to be lifted, the size of the rectangular frame can be adjusted according to the size of the equipment a to be lifted. That is, according to the size of the equipment a to be lifted under actual working conditions, an appropriate number of adjusting sections 200 are selected between any two adjacent fixed sections 100 to finally form a rectangular frame that fits the equipment a to be lifted. During lifting, four sets of lifting ropes 20 are connected to four connecting devices 300 one by one, and then the two ends of each set of lifting ropes 20 are connected to the lifting device and the equipment a to be lifted, respectively, thus completing the preparation work. Finally, the lifting device is started to lift the equipment a to be lifted.

[0039] Therefore, this lifting device 10 can not only be adapted to lifting equipment a with different structures, but also avoid interference between the lifting equipment a and the lifting device 10, thus ensuring the stability of the lifting process.

[0040] It is easy to understand that, in order to better adapt the rectangular frame to the equipment being lifted (a), the lengths of each adjusting section 200 can be different;

[0041] Furthermore, to further ensure the stability of the rectangular frame and the assembly efficiency of the rectangular frame, the number of adjusting sections 200 on each side of the rectangular frame should not be too many (for example, a maximum of five adjusting sections 200 on each side); the specific number of adjusting sections 200 on each side of the rectangular frame can be determined according to the actual working conditions and is not limited.

[0042] In addition, there are no specific restrictions on the material of the lifting device 10, as long as it has sufficient strength and can stably lift and transport the equipment a being lifted. For example, low carbon steel can be used. On the basis of meeting the above conditions, hollow fixed section 100 and adjusting section 200 can be selected according to the actual situation to reduce the lifting weight. Aerospace-grade high-strength aluminum alloy can also be used to achieve the effect of weight reduction.

[0043] like Figure 1 As shown, according to an optional embodiment of the present invention, the first fixing segment 110 and the second fixing segment 120 have the same length, and in any pair of corresponding connecting devices 300 and fixing segments 100, the connecting device 300 is installed at the connection between the first fixing segment 110 and the second fixing segment 120.

[0044] In this embodiment, it is easy to understand that the first fixed section 110 and the second fixed section 120 are set to have the same length, and the connecting device 300 is installed at the connection between the first fixed section 110 and the second fixed section 120. The purpose is to set the connecting device 300 at the four corners of the rectangular frame so that the lifting device 10 is subjected to balanced force during lifting, thereby further ensuring the stability during the lifting process.

[0045] like Figure 1 and Figure 3 As shown, according to an optional embodiment of the present invention, in each fixed section 100, a flange 400 is provided at the end of the first fixed subsection 110 away from the second fixed subsection 120, and a flange 400 is provided at the end of the second fixed subsection 120 away from the first fixed subsection 110; a flange 400 is provided at each end of each adjusting section 200, and a flange connection is made between each adjusting section 200 and the adjusting section 200 or fixed section 100 adjacent to it.

[0046] In this embodiment, when assembling the rectangular frame, the connection between adjusting sections 200 or between adjusting sections 200 and fixed sections 100 can be achieved through flange connection.

[0047] As is easily understood, when assembling the rectangular frame, any pair of assembled flanges 400 can be connected by multiple bolts, and a sealing gasket can also be installed between the two flanges 400; in addition, each bolt can be used with a nut to ensure the fixing effect.

[0048] Combination Figure 1 refer to Figure 2 and combined Figure 3 refer to Figure 4 According to an optional embodiment of the present invention, the connecting device 300 includes a lifting lug 310, which includes: an upper lifting lug 311 configured to be detachably connected to the lifting device via a top lifting rope 21; and a lower lifting lug 312 configured to be detachably connected to the lifted equipment a via a bottom lifting rope 22.

[0049] In this embodiment, during the process of lifting the equipment a using the lifting device 10 and the lifting rope 20, both the top and bottom of the lifting device 10 need to be bound to the lifting rope 20. For ease of description, in this embodiment, the lifting rope 20 above the lifting device 10 is named the top lifting rope 21, and the lifting rope 20 below the lifting device 10 is named the bottom lifting rope 22.

[0050] During assembly, once the dimensions of the rectangular frame are selected and the assembly is complete, connect the upper lifting lug 311 of the lifting lug 310 to the top lifting rope 21, and connect the lower lifting lug 312 of the lifting lug 310 to the bottom lifting rope 22. It is easy to understand that the end of the top lifting rope 21 facing away from the lifting lug 310 can be connected to the lifting device in advance, and the end of the bottom lifting rope 22 facing away from the lifting lug 310 can be connected to the equipment a to be lifted in advance. At this point, the lifting device can be operated to lift the equipment a under the action of the lifting device 10 and the top and bottom lifting ropes 21 and 22.

[0051] like Figure 2 and Figure 4 As shown, according to an optional embodiment of the present invention, the upper lifting lug 311 has an upper mounting hole 3111, the lower lifting lug 312 has a lower mounting hole, and the connecting device 300 further includes: an upper shackle 320, which is detachably connected to the upper mounting hole 3111 and is also detachably connected to the top lifting rope 21; and a lower shackle 330, which is detachably connected to the lower mounting hole and is also detachably connected to the bottom lifting rope 22.

[0052] In this embodiment, when the lifting device 10 is assembled, after the size of the rectangular frame is selected and the assembly is completed, the upper shackle 320 of the top lifting rope 21 is connected to the upper mounting hole 3111, and the lower shackle 330 of the bottom lifting rope 22 is connected to the lower mounting hole. Similarly, the end of the top lifting rope 21 away from the upper mounting hole 3111 can be connected to the lifting device in advance, and the end of the bottom lifting rope 22 away from the lower mounting hole can be connected to the equipment a to be lifted in advance. At this time, the equipment a to be lifted can be lifted by operating the lifting device under the action of the lifting device 10, the top lifting rope 21, and the bottom lifting rope 22.

[0053] Continue to refer to Figure 2 and Figure 4Specifically, according to an optional embodiment of the present invention, the upper shackle 320 includes: an upper retaining ring 321 having a first notch, the upper retaining ring 321 being detachably connected to an upper mounting hole 3111; and a first fixing pin 322, detachably connected to the upper retaining ring 321, the first fixing pin 322 being used to seal the first notch so that the upper shackle 320 as a whole forms a closed annular structure. The lower shackle 330 includes: a lower retaining ring 331 having a second notch; and a second fixing pin 332, detachably connected to the lower retaining ring 331, the second fixing pin 332 being used to seal the second notch so that the lower shackle 330 as a whole forms a closed annular structure, and the second fixing pin 332 being installed in the lower mounting hole.

[0054] In this embodiment, the specific assembly process of the top hoisting rope 21 and the bottom hoisting rope 22 will be illustrated below.

[0055] First, the connection process between the top hoisting rope 21 and the upper hoisting lug 311 of the hoisting lug 310 will be explained:

[0056] First, remove the first fixing pin 322. Then, through the first notch of the upper buckle 321, fit the upper buckle 321 onto the upper mounting hole 3111 of the upper lifting lug 311. Next, extend the end of the top lifting rope 21 away from the lifting device (for ease of description, this end will be referred to as the lower end of the top lifting rope 21) into the first notch. The lower end of the top lifting rope 21 may be provided with a first collar. Finally, assemble the first fixing pin 322 into the first notch and fit the first collar onto the first fixing pin 322 so that the upper shackle 320 forms a closed ring structure (i.e., the first collar cannot be separated from the upper shackle 320), thereby realizing the connection between the top lifting rope 21 and the upper lifting lug 311 of the lifting lug 310.

[0057] Specifically, the closed annular structure formed by the upper shackle 320 (i.e., the closed annular structure formed by the upper buckle 321 and the first fixing pin 322) has an upper shackle through hole 3201, such as Figure 2 and Figure 4 As shown, when the first ring extends into the first notch and is fitted onto the first fixing pin 322, and the upper shackle 320 forms a closed ring structure, the first ring and the upper shackle 320 are equivalent to two ring structures that are fitted together. Therefore, the first ring cannot be separated from the upper shackle through hole 3201, thereby realizing the connection between the top hoisting rope 21 and the upper hoisting lug 311 of the hoisting lug 310.

[0058] Next, the connection process between the bottom lifting rope 22 and the upper lifting lug 311 of the lifting lug 310 is explained: Similarly, the end of the top lifting rope 21 away from the lifted equipment a can be provided with a second loop; first, the second fixing pin 332 is removed, and the second loop is fitted onto the lower buckle 331 through the second notch. Then, the second fixing pin 332 is passed through the second mounting hole of the lower lifting lug 312 and the second notch is sealed, so that the lower shackle 330 forms a closed ring structure (i.e., the second loop cannot be separated from the lower shackle 330). Since the second fixing pin 332 is installed in the second mounting hole, it means that the lower shackle 330 is connected to the lower lifting lug 312 at this time, thus realizing the connection between the bottom lifting rope 22 and the lower lifting lug 312 of the lifting lug 310.

[0059] Specifically, the closed annular structure formed by the lower shackle 330 (i.e., the closed annular structure formed by the lower retaining ring 331 and the second fixing pin 332) has a lower shackle through hole 3301, such as Figure 2 and Figure 4 As shown, when the second collar extends into the second notch and is fitted onto the lower shackle through hole 3301, and the second fixing pin 332 is installed in the second mounting hole, the second collar and the lower shackle 330 are equivalent to two interlocking ring structures. Therefore, the second collar cannot be separated from the lower shackle through hole 3301, thereby achieving the connection between the bottom lifting rope 22 and the lower lifting lug 312 of the lifting lug 310.

[0060] It should be noted that this embodiment is merely an example illustrating the connection methods of the top lifting rope 21 and the bottom lifting rope 22 to the lifting lug 310. In actual working conditions, the connection methods of the top lifting rope 21 and the bottom lifting rope 22 should be based on the working conditions, as long as both the top lifting rope 21 and the bottom lifting rope 22 can be stably connected to the lifting lug 310. The specific connection methods are not limited.

[0061] Figure 5 This is a simplified schematic diagram of part of the structure of the hoisting equipment provided in this embodiment of the utility model when hoisting the equipment being lifted, combined with... Figures 1 to 4 refer to Figure 5This utility model embodiment also provides a hoisting device, including: a hoisting device (not shown in the figure); any of the above-mentioned lifting tools 10; four top hoisting ropes 21, each corresponding to one of the four connecting devices 300, one end of each top hoisting rope 21 being detachably connected to the hoisting device, and the other end of each top hoisting rope 21 being detachably connected to the connecting device 300 corresponding to the top hoisting rope 21; and four bottom hoisting ropes 22, each corresponding to one of the four connecting devices 300, one end of each bottom hoisting rope 22 being detachably connected to the connecting device 300 corresponding to the bottom hoisting rope 22, and the other end of each bottom hoisting rope 22 being detachably connected to the hoisted equipment a.

[0062] In this embodiment, before connecting the hoisting equipment to the equipment being hoisted (a), the size of the rectangular frame can be adjusted according to the size of the equipment being hoisted (a). Specifically, based on the actual working conditions, a suitable number of adjusting sections 200 are selected between any two adjacent fixed sections 100 to ultimately form a rectangular frame adapted to the equipment being hoisted (a). Before hoisting, taking the connection of a connecting device 300 and a set of hoisting ropes 20 as an example: first, connect one end of the top hoisting rope 21 to the hoisting device, and then connect the other end of the top hoisting rope 21 to the connecting device 300; next, connect one end of the bottom hoisting rope 22 to the equipment being hoisted (a), and then connect the other end of the bottom hoisting rope 20 to the connecting device 300. The other three connecting devices 300 follow the same operation and will not be described in detail. Thus, the preparation work for hoisting is completed; then, the hoisting device is activated to hoist the equipment being hoisted (a).

[0063] The following example uses a helicopter as the lifting device to illustrate the complete working process of the lifting equipment:

[0064] First, a rectangular frame is constructed. The dimensions of the rectangular frame are adjusted according to the dimensions of the equipment being lifted (a). Specifically, based on the actual working conditions, an appropriate number of adjusting sections 200 are selected between any two adjacent fixed sections 100 to form a rectangular frame adapted to the equipment being lifted (a). For example... Figure 1 As shown, the narrow side of the rectangular frame uses one adjusting section 200, and the wide side of the rectangular frame uses three adjusting sections 200.

[0065] It is easy to understand that, in order to better adapt the rectangular frame to the equipment being lifted (a), the lengths of each adjusting section 200 can be different, for example... Figure 1 The lengths of the various adjusting sections 200 are not exactly the same, in order to better adjust the size of the rectangular frame;

[0066] In addition, when assembling the rectangular frame, the connection between adjusting sections 200 or between adjusting section 200 and fixed section 100 can be achieved by flange connection; any pair of assembled flanges 400 can be connected by multiple bolts, and a sealing gasket can also be set between the two flanges 400; and each bolt can also be used with a nut to ensure the fixing effect.

[0067] Next, the top lifting rope 21 and the bottom lifting rope 22 are installed. The connection device 300, including the lifting lug 310, upper shackle 320, and lower shackle 330, is explained as follows: When assembling the top lifting rope 21, first remove the first fixing pin 322. Then, through the first notch of the upper buckle 321, fit the upper buckle 321 onto the upper mounting hole 3111 of the upper lifting lug 311. Next, the end of the top lifting rope 21 facing away from the lifting device (for ease of description, this end will be referred to as the lower end of the top lifting rope 21 below) is inserted into the first notch. The top lifting rope 21... The lower end may be provided with a first collar (not shown in the figure). Finally, the first fixing pin 322 is assembled into the first notch, and the first collar is fitted onto the first fixing pin 322, so that the upper shackle 320 as a whole forms a closed ring structure (i.e., the first collar cannot be separated from the upper shackle 320), thereby realizing the connection between the top hoisting rope 21 and the upper hoisting lug 311 of the hoisting lug 310; specifically, the closed ring structure formed by the upper shackle 320 as a whole (i.e., the closed ring structure formed by the upper buckle 321 and the first fixing pin 322) has an upper shackle through hole 3201, such as Figure 2 and Figure 4As shown, when the first ring extends into the first notch and is fitted onto the first fixing pin 322, and the upper shackle 320 forms a closed ring structure, the first ring and the upper shackle 320 are equivalent to two ring structures that are fitted together. Therefore, the first ring cannot be separated from the upper shackle through hole 3201, thereby realizing the connection between the top hoisting rope 21 and the upper hoisting lug 311 of the hoisting lug 310. It is easy to understand that the end of the top hoisting rope 21 away from the first ring should be connected to the helicopter. When assembling the bottom lifting rope 22, the end of the top lifting rope 21 facing away from the lifted equipment a may have a second loop (not shown in the figure). First, remove the second fixing pin 332, and then fit the second loop through the second notch onto the lower buckle 331. Then, pass the second fixing pin 332 through the second mounting hole of the lower lifting lug 312 and seal the second notch, so that the lower shackle 330 forms a closed ring structure (i.e., the second loop cannot be separated from the lower shackle 330). Since the second fixing pin 332 is installed in the second mounting hole, it means that the lower shackle 330 is now connected to the lower lifting lug 312, thus realizing the connection between the bottom lifting rope 22 and the lower lifting lug 312 of the lifting lug 310. Specifically, the closed ring structure formed by the lower shackle 330 (i.e., the closed ring structure formed by the lower buckle 331 and the second fixing pin 332) has a lower shackle through hole 3301, such as Figure 2 and Figure 4 As shown, when the second collar extends into the second notch and is fitted onto the lower shackle through hole 3301, and the second fixing pin 332 is installed in the second mounting hole, the second collar and the lower shackle 330 are equivalent to two interlocking ring structures. Therefore, the second collar cannot be separated from the lower shackle through hole 3301, thus achieving the connection between the bottom lifting rope 22 and the lower lifting lug 312 of the lifting lug 310. Similarly, the end of the bottom lifting rope 22 away from the second collar should be connected to the lifted equipment a. Each lifting lug 310 is connected to the top lifting rope 21 and the bottom lifting rope 22 respectively according to the above operation.

[0068] As described above, the connection between the hoisting equipment and the hoisted equipment a is now complete. The helicopter can then be started to lift the hoisted equipment a, thus enabling its transportation. It is easy to understand that the hoisted equipment a can be a large piece of equipment such as a geological drilling rig.

[0069] It should be noted that the number of top lifting ropes 21 and bottom lifting ropes 22 mentioned above is only for illustrative purposes, that is, one lifting lug 310 is matched with one top lifting rope 21 and one bottom lifting rope 22; in actual working conditions, the number of top lifting ropes 21 and bottom lifting ropes 22 connected to each lifting lug 310 is not limited, as long as it can ultimately avoid interference between the lifted equipment a and the lifting device 10, thereby ensuring the stability of the lifting process.

[0070] It is easy to understand that, in order to further ensure the stability of the hoisting process, the first fixed section 110 and the second fixed section 120 can be set to have the same length, and the connecting device 300 can be installed at the connection between the first fixed section 110 and the second fixed section 120. The purpose is to set the connecting device 300 at the four corners of the rectangular frame so that the lifting device 10 is subjected to balanced force during hoisting, thereby further ensuring the stability of the hoisting process.

[0071] According to an optional embodiment of the present invention, when the hoisting equipment is lifted by the hoisting equipment a, the angle between the top hoisting rope 20 and the horizontal direction is in the range of 45°-60°.

[0072] like Figure 5 As shown, during the lifting process (i.e., transportation process) of the equipment a being lifted, it is necessary to ensure that the angle between the top lifting rope 20 and the horizontal direction is within the range of 45°-60°. Figure 5 In this case, 45° < α < 60°, to ensure the stability of the lifted equipment a during transportation.

[0073] In addition, to further ensure the stability of the lifted equipment a during transportation, the following dimensions may be limited:

[0074] The height of the lifted equipment a should not exceed one-third of the total vertical length of the lifting ropes 20 (i.e., the top lifting rope 21 and the bottom lifting rope 22). Figure 5 In the case of 3h ≤ H;

[0075] The vertical length of the top hoisting rope 21 is greater than the height of the center of gravity c of the hoisted equipment a from the ground (when the hoisted equipment a is placed on the ground), that is... Figure 5 In this case, X > Y.

[0076] Finally, let's summarize the complete assembly process of this hoisting equipment:

[0077] First, adjust the size of the rectangular frame according to the size of the equipment a being lifted, that is, select an appropriate number of adjusting sections 200 between any two adjacent fixed sections 100 according to the size of the equipment a being lifted under actual working conditions.

[0078] Next, check whether there is sand or other debris on the fixed section 100, adjusting section 200 and flange 400. If so, clean them. Then, use an auxiliary tool to pry them in the bolt holes to accurately align the mating threaded holes on the two adjacent flanges 400.

[0079] Next, use matching high-strength bolts, nuts and washers (such as M10, 8.8 grade) to connect the two adjacent flanges 400 to form a rectangular frame adapted to the equipment being lifted a; a torque wrench can also be used to tighten all bolts evenly to the specified torque value (such as 50 N·m to 70 N·m) to ensure the reliability of the connection and the rigidity of the rectangular frame;

[0080] Then the top hoisting rope 21 and the bottom hoisting rope 22 can be connected. The specific connection process can be found in the detailed description above, and will not be repeated here.

[0081] It should be noted that after the hoisting equipment is assembled and connected to the equipment to be hoisted (a) and the hoisting device, before hoisting the equipment (a), it is necessary to thoroughly check whether all connection points are secure to further ensure the stability of the hoisting and thus ensure transportation safety.

[0082] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A spreader, characterized in that, include: Four fixed sections, each of which includes a first fixed sub-section and a second fixed sub-section connected to each other, the first fixed sub-section and the second fixed sub-section being perpendicular to each other; A plurality of adjusting sections, together with four fixed sections, form a rectangular frame, the four fixed sections constituting the four corners of the rectangular frame; at least one adjusting section is provided between any two adjacent fixed sections, and each adjusting section is detachably connected to an adjacent adjusting section or fixed section; and Four connecting devices are provided, each corresponding to one of the four fixed sections. In any pair of corresponding connecting devices and fixed sections, the connecting device is connected to the fixed section, and the connecting device is used for detachable connection with the hoisting rope.

2. The lifting device according to claim 1, characterized in that, The first fixed section and the second fixed section have the same length, and in any pair of corresponding connecting devices and fixed sections, the connecting device is installed at the connection between the first fixed section and the second fixed section.

3. The lifting device according to claim 1, characterized in that, In each of the fixed sections, the first fixed subsection is provided with a flange at the end away from the second fixed subsection, and the second fixed subsection is provided with a flange at the end away from the first fixed section; Each of the adjusting sections has a flange at each end, and each adjusting section is flange-connected to an adjacent adjusting section or fixed section.

4. The lifting device according to any one of claims 1-3, characterized in that, The connecting device includes a lifting lug, the lifting lug comprising: The upper lifting lugs are configured to be detachably connected to the lifting device via top lifting ropes; and The lower lifting lugs are configured to be detachably connected to the equipment being lifted via bottom lifting ropes.

5. The lifting device according to claim 4, characterized in that, The upper lifting lug has an upper mounting hole, the lower lifting lug has a lower mounting hole, and the connecting device further includes: The upper shackle is detachably connected to the upper mounting hole, and the upper shackle is also detachably connected to the top hoisting rope; and The lower shackle is detachably connected to the lower mounting hole, and the lower shackle is also used for detachably connecting to the bottom hoisting rope.

6. The lifting device according to claim 5, characterized in that, The upper shackle includes: The upper retaining ring has a first notch, and the upper retaining ring is detachably connected to the upper mounting hole; and The first fixing pin is detachably connected to the upper buckle. The first fixing pin is used to seal the first notch so that the upper buckle as a whole forms a closed ring structure.

7. The lifting device according to claim 5, characterized in that, The lower shackle includes: The lower buckle has a second notch; and The second fixing pin is detachably connected to the lower buckle. The second fixing pin is used to seal the second notch so that the lower shackle forms a closed ring structure, and the second fixing pin is installed in the lower mounting hole.

8. A hoisting device, characterized in that, include: Lifting equipment; The lifting device as described in any one of claims 1-7; Four top hoisting ropes are provided, each corresponding to one of the four connecting devices. One end of each top hoisting rope is detachably connected to the hoisting device, and the other end of each top hoisting rope is detachably connected to the connecting device corresponding to the top hoisting rope. as well as Four bottom lifting ropes are provided, each corresponding to one of the four connecting devices. One end of each bottom lifting rope is detachably connected to the connecting device corresponding to the bottom lifting rope, and the other end of each bottom lifting rope is detachably connected to the equipment being lifted.

9. The hoisting equipment according to claim 8, characterized in that, The lifting device is a helicopter.

10. The hoisting equipment according to claim 8 or 9, characterized in that, When the hoisting equipment is lifted by the lifting equipment, the angle between the top hoisting rope and the horizontal direction is in the range of 45°-60°.

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