Three-point type auxiliary overturning lifting appliance

Abstract

The utility model provides a three-point type auxiliary overturning lifting appliance, which relates to a lifting structure and comprises a cross rod, the two ends of the transverse rod are each provided with a connecting piece. The cross rod is sleeved with a base plate. The base plate is connected with a movable plate through a rotating shaft, and a check block fixedly connected with the base plate is arranged on one side of the movable plate. A baffle attached to the movable plate is fixedly installed on the check block. A groove is formed in the top end of the movable plate, and a connecting shaft is arranged in the groove; the connecting shaft is sleeved with a pulley, and the top end of the pulley is arranged above the movable plate. A variable channel is defined by the base plate, the side wall A, close to the check block, of the movable plate, the side wall B, close to the movable plate, of the check block and the baffle, and the top of the sliding groove in the pulley communicates with the top of the variable channel. An auxiliary rope is hung on the top of a groove in the pulley, one end of the auxiliary rope is connected with the hoisted equipment, and the other end of the auxiliary rope penetrates through the variable channel from top to bottom and is arranged below the base plate; the device can be stably switched between a horizontal state and a vertical state, and hoisting of the device is facilitated.

Description

Technical Field

[0001] The utility model relates to a hoisting structure, in particular to a three-point auxiliary turnover hoist. Background Art

[0002] Some round or other shaped equipment needs to be lifted from a horizontal storage state to a vertical state for installation and use, and then restored to the horizontal storage state after use.

[0003] In the above process, the lifting equipment is required. However, most of the existing lifting equipment is a two-point lifting structure, which makes the equipment prone to unstable center of gravity and flipping during the lifting process, and requires a large number of people to assist in maintaining the stability of the equipment, which poses certain safety hazards. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies of the prior art, the utility model provides a three-point auxiliary tipping sling to solve the technical problems of the two-point lifting structure in the prior art causing tipping due to unstable center of gravity when lifting some equipment.

[0006] (II) Technical solution

[0007] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] A three-point auxiliary tip-over sling is provided, comprising a crossbar;

[0009] A connecting piece is installed at each end of the crossbar; one end of the connecting piece is connected to the suspended equipment, and the other end is connected to the lifting equipment;

[0010] A base plate is sleeved on the crossbar;

[0011] The base plate is connected to a movable plate via a rotating shaft, and a stopper fixedly connected to the base plate is provided on one side of the movable plate;

[0012] A baffle plate that fits the movable plate is fixedly mounted on the baffle block;

[0013] The top of the movable plate is provided with a groove, and the groove is provided with a connecting shaft located obliquely above the rotating shaft;

[0014] The connecting shaft is sleeved with a pulley which is partially or completely fitted with the baffle, and the top end of the pulley is arranged above the movable plate;

[0015] The base plate, the side wall A of the movable plate adjacent to the stopper, the side wall B of the stopper adjacent to the movable plate and the stopper form a variable passage, and the top of the slide groove in the pulley is connected to the top of the variable passage;

[0016] The shapes of the movable plate, the pulley, the side wall A and the side wall B satisfy condition A, which is:

[0017] When the base plate is in a vertical state, the top of the movable plate will rotate around the rotation axis away from the stopper to the limit position only under the action of gravity, and at this time, the part B of the side wall A below the set distance A below the rotation axis is in contact with the side wall B, and the rest of the part is not in contact with the side wall B;

[0018] The size of the baffle plate satisfies that: when the top end of the movable plate rotates around the rotation axis to any position, the portion of the side wall A that is located above the set distance B below the rotation axis is always blocked by the baffle plate;

[0019] The baffle plate and the movable plate are also connected via a driving structure for making the variable passage in condition A become unobstructed;

[0020] An auxiliary rope is hung on the top of the groove in the pulley, and one end of the auxiliary rope is connected to the suspended equipment, and the other end passes through the variable channel from top to bottom and is arranged below the base plate;

[0021] When the pulley is closest to the crossbar, the top of the side wall A is below the top of the slide groove in the pulley.

[0022] Furthermore, the driving structure comprises a connecting rod 1, a connecting rod 2, a threading member and a driving rope;

[0023] The first end of the connecting rod 1 is connected to the movable plate, the second end of the connecting rod 1 is hinged to the first end of the connecting rod 2, and the second end of the connecting rod 2 is rotatably connected to the baffle;

[0024] The side wall of the connecting rod 1 adjacent to the pulley and the side wall of the connecting rod 2 adjacent to the pulley form an angle A;

[0025] The passing member is fixedly mounted on the baffle plate and is arranged above the second connecting rod;

[0026] The passing member is provided with two passing holes which are not in contact with each other;

[0027] The first end of the driving rope is fixedly connected to the second end of the connecting rod, and the second end thereof first passes through a through hole from bottom to top, and then passes through another through hole from top to bottom, and is then arranged below the base plate;

[0028] The size of angle A satisfies: under condition A, angle A is at a minimum value and is less than 90 degrees, and when the second end of the drive rope is pulled downward to the extreme position, a portion of side wall A that is above a set distance A below the rotating shaft fits with side wall B, and at this time, angle A is at a maximum value and is less than 150 degrees.

[0029] Furthermore, the passage hole is a flat hole, and its width is smaller than the outer diameter of the driving rope.

[0030] Furthermore, the portion of the side wall A below the set distance A below the rotating shaft is shaped as a smooth curved wall with an arc A in the middle, and the arc A is recessed toward one side of the movable plate.

[0031] Furthermore, under condition A, the portion of the side wall B that fits with the arc A is portion C, and both the arc A and portion C are rough surfaces.

[0032] Furthermore, a stop block that cannot pass through the through hole is installed on the portion of the drive rope between the through hole and the connecting rod 1, and when the drive rope is pulled until the stop block contacts the through piece, the angle A is less than its maximum value.

[0033] Further, the connecting member includes a connecting structure, a sling 1 and a sling 2;

[0034] The middle part of the connecting structure is sleeved and installed on the end of the crossbar, and a lifting ring is provided at the top thereof for connecting with the bottom end of the lifting belt;

[0035] A second lifting ring is provided at the bottom end of the connection structure for connecting with the top end of the second lifting belt.

[0036] Furthermore, the second sling and the auxiliary rope are connected to the suspended equipment through auxiliary parts respectively;

[0037] The auxiliary parts include connecting bolts and an annular baffle;

[0038] The end of the connecting bolt is threadedly connected to the suspended equipment;

[0039] The connecting bolt is sleeved with an annular baffle fixedly connected thereto;

[0040] The outer wall of a portion A of the connecting bolt between the head thereof and the annular baffle is a smooth outer wall.

[0041] Furthermore, a hanging member and two rotating members are provided;

[0042] The hanging piece is sleeved on one part A, and a rotating piece is sleeved on each of the remaining two parts A;

[0043] The end of the rotating member away from the corresponding part A is provided with a rotating hole for connecting with the corresponding sling 2, and the axis of the rotating hole is parallel to the axis of the corresponding part A;

[0044] An adjustment hole is provided on the end of the pendant away from the corresponding part A for connection with the auxiliary rope, and the axis of the adjustment hole is perpendicular to the axis of the corresponding part A.

[0045] Furthermore, a ring is provided at the top end of the sling.

[0046] (III) Beneficial effects

[0047] The three-point auxiliary turning sling provided by the utility model has the following beneficial effects compared with the prior art:

[0048] By setting up a base plate, a movable plate, a driving structure, etc., the equipment can achieve the purpose of three-point lifting for the hoisted equipment. During the lifting process, the equipment can be switched between a horizontal state and a vertical state as needed, avoiding the disadvantages of the prior art of requiring manual assistance to straighten the equipment, improving the safety of the lifting process, and reducing the workload of manual operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] 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 described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0050] Figure 1 It is a schematic diagram of the three-dimensional structure of a three-point auxiliary turning sling in the embodiment;

[0051] Figure 2 for Figure 1 A partial enlarged view of the middle A;

[0052] Figure 3 Schematic diagram of the connection relationship between the substrate and the stopper etc. in the embodiment;

[0053] Figure 4 for Figure 1 A partial enlarged view of point B in the middle.

[0054] In the figure: 1. cross bar; 2. connecting part; 21. connecting structure; 211. lifting ring 1; 212. lifting ring 2; 22. lifting belt 1; 221. sleeve; 23. lifting belt 2; 3. base plate; 31. rotating shaft; 32. block; 33. baffle; 321. side wall B; 4. movable plate; 41. connecting shaft; 42. pulley; 43. side wall A; 5. variable channel; 6. auxiliary rope; 7. driving structure; 71. connecting rod 1; 72. connecting rod 2; 73. running piece; 74. driving rope; 75. stop block; 8. auxiliary part; 81. connecting bolt; 82. annular baffle; 83. hanging part; 84. rotating part. DETAILED DESCRIPTION

[0055] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model is described clearly and completely. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0056] Example

[0057] refer to Figure 1-4 , In order to solve the problems in the background technology, the present embodiment provides a three-point auxiliary flip sling, which comprises a cross bar 1, an auxiliary rope 6 and a driving rope 74;

[0058] The length of the crossbar 1 is greater than the width that the suspended equipment needs to span. Since the sling is mostly used to fix equipment, the size of the crossbar 1 is mostly fixed. The size of the crossbar 1 can also be made larger than the suspended equipment, so that the sling can be applied to other equipment.

[0059] Secondly, in order to facilitate hoisting, a connecting piece 2 is installed at each end of the crossbar 1, wherein one end of the connecting piece 2 is connected to the hoisted equipment, and the other end is connected to the hoisting equipment (for hoisting the hoisted equipment via the hoisting device).

[0060] In conjunction with the accompanying drawings, in this embodiment, the connecting member 2 comprises a connecting structure 21, a sling 1 22 and a sling 2 23;

[0061] The middle part of the connecting structure 21 is an annular structure, and is mounted on the end of the cross bar 1. When hanging, the connecting structure 21 and the cross bar 1 are fixedly connected by limiting bolts or the like (one end of the limiting bolt is threadedly connected to the middle part of the connecting structure 21 and tightly pressed against the cross bar 1 or is threadedly connected to the cross bar 1, or can also be welded). A lifting ring 211 is provided at the top for connecting to the bottom end of a sling 22, and the top end of the sling 22 is connected to the lifting equipment.

[0062] Secondly, a second lifting ring 212 is provided at the bottom end of the connecting structure 21 for connecting with the top end of the second lifting belt 23, and the bottom end of the second lifting belt 23 is connected with the suspended equipment.

[0063] Then, through the above arrangement, the bottom ends of the two lifting belts 23 are respectively connected to the two ends of the hoisted equipment, so as to form a two-point hoisting state.

[0064] In some embodiments, in order to facilitate lifting and reduce the difficulty of connecting the equipment, the second lifting belt 23 is connected to the lifted equipment through an auxiliary component 8.

[0065] The auxiliary member 8 includes a connecting bolt 81 and an annular baffle 82, and a threaded hole for threading the end of the connecting bolt 81 with the suspended equipment is pre-opened on the suspended equipment, or a cylindrical structure that can be threadedly connected to the connecting bolt 81 can be pre-installed or welded on the suspended equipment;

[0066] An annular baffle 82 is sleeved on the connecting bolt 81 and fixedly connected thereto, and the outer wall of a portion A of the connecting bolt 81 between the head thereof and the annular baffle 82 is a smooth outer wall.

[0067] That is, the bottom end of the sling 23 is sleeved on the corresponding part A, completing the connection step.

[0068] In some embodiments, in order to further reduce the friction during the lifting process, two rotating members 84 are further provided, and one end of each rotating member 84 is respectively mounted on a part A (the two parts A here correspond to two slings 23), and a rotating hole is provided on the end of each rotating member 84 away from the corresponding part A for connecting with the corresponding sling 2 23, and the axis of the rotating hole is parallel to the axis of the corresponding part A, so as to facilitate rotation around the axis and achieve the purpose of reducing friction.

[0069] At the same time, in order to facilitate lifting, a ring 221 is also provided at the top of the sling 22.

[0070] That is, before lifting, the rings 221 at the top of the two slings 22 are respectively mounted on the lifting equipment, the bottom ends of the two slings 23 are respectively connected to the corresponding rotating holes, and the connecting bolts 81 corresponding to the two slings 23 are threadedly connected to the two sides of the lifted equipment; during the lifting process, the corresponding friction can be effectively reduced with the help of the rotating member 84.

[0071] In order to prevent the hoisted equipment from turning over during the hoisting process, in this embodiment, a base plate 3 is also mounted on the cross bar 1, that is, the top end of the base plate 3 is mounted on the cross bar 1, and the two can rotate relative to each other.

[0072] Secondly, a movable plate 4 is rotatably connected to the base plate 3 via a rotating shaft 31, and a stopper 32 fixedly connected to the base plate 3 is provided on one side of the movable plate 4. In some embodiments, the stopper 32 and the base plate 3 are an integral structure, thereby increasing the strength of the device.

[0073] Meanwhile, a groove is formed at the top of the movable plate 4 , in which a connecting shaft 41 which is integrated with the base plate 3 is disposed, and a pulley 42 is sleeved on the connecting shaft 41 .

[0074] Among them, the top and the left part of the groove are directly connected to the external space, and the top of the pulley 42 arranged therein is located above the movable plate 4 (the corresponding top and left part of the pulley 42 are both arranged on the outside of the movable plate 4), so that the auxiliary rope 6 arranged in the top of the slide groove in the pulley 42 can pass freely without being restricted by the movable plate 4.

[0075] In order to achieve functions such as self-locking, a baffle 33 fixedly connected to the baffle 32 is provided on the front side wall (the two are an integrated structure in some embodiments), the baffle 33 is in contact with the movable plate 4, and the pulley 42 is partially or completely in contact with the baffle 33, thereby ensuring the stable operation of the auxiliary rope 6 with the help of the baffle 33.

[0076] Secondly, the base plate 3, the baffle 33, the side wall A43 of the movable plate 4 adjacent to the block 32, and the side wall B321 of the block 32 adjacent to the movable plate 4 are surrounded to form a variable channel 5; wherein, the baffle 33 is in contact with the movable plate 4, and the sizes of the pulley 42, the movable plate 4, the block 32, and the baffle 33 are sufficient to ensure that the right side of the top of the slide groove in the pulley 42 is always connected with the top of the variable channel 5. For example, when the pulley 42 is closest to the cross bar 1, the top of the side wall A43 is below the top of the slide groove in the pulley 42. Then, no matter how the movable plate 4 rotates, the auxiliary rope 6 in the pulley 42 can always directly enter the variable channel 5.

[0077] Secondly, in order to achieve self-locking and ensure the stability of the equipment during operation, the shapes of the side wall A43 and the side wall B321 are also required to meet condition A, and condition A is specifically:

[0078] When the base plate 3 is in a vertical state, the top of the movable plate 4 will rotate around the rotating shaft 31 away from the stop block 32 and reach the extreme position under the action of pure gravity, and at this time, the part B of the side wall A43 below the set distance A below the rotating shaft 31 is in contact with the side wall B321, and the remaining part does not contact with the side wall B321; wherein, the set distance A is used to ensure that the auxiliary rope 6 can pass through the variable channel 5, and it is determined according to the settings during the installation and preparation of the equipment; for example, when the equipment is designed and prepared, there is a certain distance between the rotating shaft 31 and the stop block 32. When the movable plate 4 is installed, part of the movable plate 4 exists in the space formed by the rotating shaft 31 and the side wall B321 in the horizontal direction, and the corresponding side wall A43 and side wall B321 between the two do not contact each other, forming a supply The channel through which the auxiliary rope 6 passes, when the top of the movable plate 4 is rotated away from the stop block 32 to the extreme position, the portion of the side wall A43 below the set distance A below the rotating shaft 31 fits with the side wall B321, which can close the variable channel 5. When the auxiliary rope 6 is arranged in the variable channel 5, it is obvious that the portion of the side wall A43 below the set distance A below the rotating shaft 31 cannot fit with the side wall B321, and the corresponding auxiliary rope 6 arranged in this portion must be tightened, and the greater the force applied to the top of the movable plate 4 (the force applied to the left side of the pulley 42 through the auxiliary rope 6), the tighter the auxiliary rope 6 corresponding to the portion of the side wall A43 below the set distance A below the rotating shaft 31 is clamped, thereby achieving the purpose of self-locking, and the smaller the corresponding set distance A is, the better the clamping effect is.

[0079] Secondly, in order to facilitate the limiting of the auxiliary rope 6 in the variable channel 5, in this embodiment, the size of the baffle 33 is also satisfied: when the top end of the movable plate 4 rotates around the rotating shaft 31 to any position, the portion of the side wall A43 that is above the set distance B below the rotating shaft 31 is always blocked by the baffle 33.

[0080] If the distance B is set to be greater than the distance A, the auxiliary rope 6 can always be kept in the variable channel 5 during the pulling process, thereby ensuring the stable operation of the device. The portion below the distance B will not affect the stable operation of the device.

[0081] In order to further ensure the stable operation of the auxiliary rope 6, in some embodiments, the size of the baffle 33 is also satisfied: when the top end of the movable plate 4 moves to any position around the rotating shaft 31, the portion of the variable channel 5 and the slide groove in the pulley 42 that is located above the set distance C below the rotating shaft 31 is always clamped and blocked by the baffle 33 and the base plate 3.

[0082] Then, through the above arrangement, the auxiliary rope 6 can be pulled stably, thereby improving the stability of the equipment.

[0083] In order to enable the variable channel 5 under condition A to be unobstructed (both ends of the bottom are connected to the external space) when necessary, in this embodiment, the baffle 33 and the movable plate 4 are connected by a driving structure 7 for enabling the variable channel 5 under condition A to be unobstructed.

[0084] The driving structure 7 can change the variable channel 5 under condition A from being connected to the external space at the top to being connected to the external space at both ends of the bottom, and its inner dimensions meet the passage requirements of the auxiliary rope 6, thereby realizing the pulling requirements of the auxiliary rope 6.

[0085] The driving structure 7 can be of various structures, as long as it can control the opening and closing state between the movable plate 4 and the stopper 32 .

[0086] In this embodiment, the driving structure 7 is composed of a connecting rod 1 71, a connecting rod 2 72, a threading member 73 and a driving rope 74; wherein, the first end of the connecting rod 1 71 is connected to the movable plate 4, and the second end thereof is hinged to the first end of the connecting rod 2 72, and the second end of the connecting rod 2 72 is rotatably connected to the baffle 33; in order to reduce the difficulty of opening and closing, the first end of the connecting rod 1 71 is connected to the bottom end of the movable plate 4, and the second end of the connecting rod 2 72 is rotatably connected to the bottom end of the baffle 33; secondly, the threading member 73 is fixedly mounted on the baffle 33 and is arranged above the connecting rod 2 72, and two threading holes that do not contact each other are opened on the threading member 73, and at the same time, the first end of the driving rope 74 is fixedly connected to the second end of the connecting rod 1 71, and the second end thereof first passes through one threading hole from bottom to top, and then passes through the other threading hole from top to bottom and is arranged below the base plate 3; the side wall of the connecting rod 1 71 adjacent to the pulley 42 and the side wall of the connecting rod 2 72 adjacent to the pulley 42 form an angle A.

[0087] And the size of the angle A satisfies: under condition A, the angle A is at the minimum value and is less than 90 degrees, and when the second end of the drive rope 74 is pulled downward to the extreme position, the part of the side wall A43 that is above the set distance A below the rotating shaft 31 fits with the side wall B321, and at this time the angle A is at the maximum value and is less than 150 degrees.

[0088] That is, pulling the second end of the drive rope 74 can make the variable channel 5 under condition A become unobstructed, and when it is pulled to the extreme position, the angle A is set to the maximum value, so that the whole formed by the connecting rod 1 71 and the connecting rod 2 72 will not become a structure with the tip facing upward, so that when the second end of the drive rope 74 is not pulled subsequently, it can autonomously change to the minimum angle under the action of the suspended equipment, thereby achieving the purpose of self-locking in the process.

[0089] In order to buffer the self-locking and unlocking process, the through hole in this embodiment is also made to be a flat hole, and its width is smaller than the outer diameter of the driving rope 74; through the above design, when the external force pulls the second end of the driving rope 74 downward or there is no external force operation, the process will be affected by the two limiting holes compressing the driving rope 74, thereby slowing down the change process of the corresponding process, and then playing a buffering role.

[0090] In some embodiments, in order to increase the stability during self-locking, the portion of the side wall A43 below the set distance A below the rotating shaft 31 is shaped as a smooth curved wall with an arc A in the middle, and the arc A is recessed toward the side of the movable plate 4. Through this arrangement, the auxiliary rope 6 clamped during self-locking becomes longer, thereby further increasing the friction force and ensuring the stability of self-locking.

[0091] Secondly, in order to further ensure the stability during self-locking, under condition A, the part of the side wall B321 that is in contact with the side wall A43 is part C, and the arc A and part C are both rough surfaces; then the setting of the rough surface enables the clamped auxiliary rope 6 to be further stably clamped, thereby ensuring the stability of self-locking.

[0092] In some embodiments, in order to avoid accidents when pulling the drive rope 74, a stop block 75 with a cross-section larger than the cross-section of the passage hole is installed on the portion of the drive rope 74 between the passage hole and the connecting rod 71, and when the drive rope 74 is pulled until the stop block 75 contacts the passage member 73, the angle A is smaller than its maximum value.

[0093] That is, the pulling limit of the driving rope 74 is limited by the stop block 75 to avoid damage to the connecting rod 1 71 and the connecting rod 2 72 as a whole, thereby ensuring the stability of the equipment.

[0094] When the equipment is in use, the auxiliary rope 6 is also connected to the suspended equipment through the auxiliary part 8; at the same time, in order to reduce the difficulty of making the suspended equipment vertical during the lifting process, a hanger 83 is also provided. The hanger 83 is mounted on the part A corresponding to the auxiliary rope 6, and an adjustment hole is provided on the end of the hanger 83 away from the corresponding part A, which is used to connect with the auxiliary rope 6, and the axis of the adjustment hole is perpendicular to the axis of the corresponding part A, thereby further ensuring stability during the lifting process.

[0095] When the equipment is in use, firstly three connecting bolts 81 are threadedly connected to the suspended equipment, wherein the connecting bolts 81 corresponding to the auxiliary rope 6 are at the corresponding top end when the suspended equipment is in a vertical state.

[0096] Then, for the horizontally placed suspended equipment, the bottom end of the sling 23 is connected to the corresponding rotating hole in the rotating member 84, and the first end of the auxiliary rope 6 is connected to the adjustment hole in the hanging member 83;

[0097] Secondly, the rings 221 on the two slings 22 are connected to the lifting equipment to complete the assembly of the equipment.

[0098] Then slowly pull the second end of the auxiliary rope 6 (the second end of the auxiliary rope 6 first passes through the top of the slide groove of the pulley 42 from the left side of the pulley 42, and then passes through the variable channel 5 from top to bottom and is arranged under the base plate 3). In this process, because the pulling force is at most the same as or slightly larger than the reaction force, and it is pulled slowly, the auxiliary rope 6 will not be clamped. After pulling a certain distance, the connecting end of the suspended equipment and the auxiliary rope 6 will be tilted, and then the lifting equipment will be operated, so that the entire equipment is lifted off the ground, and at this time the center of gravity of the suspended equipment is below the bottom of the two lifting belts 23 (pre-determined), and then slowly pull the auxiliary rope 6 again until the suspended equipment becomes a vertical installation position, and then the auxiliary rope 6 is no longer operated.

[0099] During the above period, the drive rope 74 is not operated.

[0100] After the equipment is installed and used, one operator first pulls the auxiliary rope 6, and the other operator slowly pulls the drive rope 74 to gradually increase the angle A. At this time, the variable channel 5 gradually opens until the auxiliary rope 6 can slide in the variable channel 5, until the stop block 75 contacts the threading piece 73, causing the drive rope 74 to be unable to be pulled. Then the person operating the auxiliary rope 6 slowly operates the auxiliary rope 6 to gradually change the suspended equipment from a vertical state to a horizontal state for storage.

[0101] Complete the lifting and disassembly of the equipment.

[0102] In some embodiments, a baffle plate 2 (such as Figure 2 ), used to guide and limit the auxiliary rope on the corresponding side.

[0103] In summary, the three-point auxiliary flip sling provided in this application has the following beneficial effects compared with the prior art:

[0104] 1. It can stably switch the equipment between horizontal and vertical states, avoiding the disadvantages of manual assisted operation;

[0105] 2. Can effectively reduce the operator's occupation;

[0106] 3. Effectively reduce the workload of operators;

[0107] 4. Improved operational efficiency.

[0108] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0109] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A three-point auxiliary turning sling, characterized in that: Including crossbars; A connecting piece is installed at each end of the crossbar; one end of the connecting piece is connected to the suspended equipment, and the other end is connected to the lifting equipment; A base plate is sleeved on the crossbar; The base plate is connected to a movable plate via a rotating shaft, and a stopper fixedly connected to the base plate is provided on one side of the movable plate; A baffle plate that fits the movable plate is fixedly mounted on the baffle block; The top of the movable plate is provided with a groove, and the groove is provided with a connecting shaft located obliquely above the rotating shaft; The connecting shaft is sleeved with a pulley which is partially or completely fitted with the baffle, and the top end of the pulley is arranged above the movable plate; The base plate, the side wall A of the movable plate adjacent to the stopper, the side wall B of the stopper adjacent to the movable plate and the stopper form a variable passage, and the top of the slide groove in the pulley is connected to the top of the variable passage; The shapes of the movable plate, the pulley, the side wall A and the side wall B satisfy condition A, which is: When the base plate is in a vertical state, the top of the movable plate will rotate around the rotation axis away from the stopper to the limit position only under the action of gravity, and at this time, the part B of the side wall A below the set distance A below the rotation axis is in contact with the side wall B, and the rest of the part is not in contact with the side wall B; The size of the baffle plate satisfies that: when the top end of the movable plate rotates around the rotation axis to any position, the portion of the side wall A that is located above the set distance B below the rotation axis is always blocked by the baffle plate; The baffle plate and the movable plate are also connected via a driving structure for making the variable passage in condition A become unobstructed; An auxiliary rope is hung on the top of the groove in the pulley, and one end of the auxiliary rope is connected to the suspended equipment, and the other end passes through the variable channel from top to bottom and is arranged below the base plate; When the pulley is closest to the crossbar, the top of the side wall A is below the top of the slide groove in the pulley.

2. A three-point auxiliary turning sling according to claim 1, characterized in that: The driving structure comprises a connecting rod 1, a connecting rod 2, a running piece and a driving rope; The first end of the connecting rod 1 is connected to the movable plate, the second end of the connecting rod 1 is hinged to the first end of the connecting rod 2, and the second end of the connecting rod 2 is rotatably connected to the baffle; The side wall of the connecting rod 1 adjacent to the pulley and the side wall of the connecting rod 2 adjacent to the pulley form an angle A; The passing member is fixedly mounted on the baffle plate and is arranged above the second connecting rod; The passing member is provided with two passing holes which are not in contact with each other; The first end of the driving rope is fixedly connected to the second end of the connecting rod, and the second end thereof first passes through a through hole from bottom to top, and then passes through another through hole from top to bottom, and is then arranged below the base plate; The size of angle A satisfies: under condition A, angle A is at a minimum value and is less than 90 degrees, and when the second end of the drive rope is pulled downward to the extreme position, a portion of side wall A that is above a set distance A below the rotating shaft fits with side wall B, and at this time, angle A is at a maximum value and is less than 150 degrees.

3. A three-point auxiliary turning sling according to claim 2, characterized in that: The through hole is a flat hole, and its width is smaller than the outer diameter of the driving rope.

4. A three-point auxiliary turning sling according to claim 1, characterized in that: The shape of the portion of the side wall A below the set distance A below the rotating shaft is a smooth curved wall with an arc A in the middle, and the arc A is concave toward one side of the movable plate.

5. A three-point auxiliary turning sling according to claim 4, characterized in that: Under condition A, the portion of the side wall B that fits the arc A is portion C, and both the arc A and portion C are rough surfaces.

6. A three-point auxiliary turning sling according to claim 2, characterized in that: A stop block that cannot pass through the through hole is also installed on the portion of the drive rope between the through hole and the connecting rod 1, and when the drive rope is pulled until the stop block contacts the through piece, the angle A is less than its maximum value.

7. A three-point auxiliary turning sling according to claim 1, characterized in that: The connecting piece includes a connecting structure, a first sling and a second sling; The middle part of the connecting structure is sleeved and installed on the end of the crossbar, and a lifting ring is provided at the top thereof for connecting with the bottom end of the lifting belt; A second lifting ring is provided at the bottom end of the connection structure for connecting with the top end of the second lifting belt.

8. A three-point auxiliary turning sling according to claim 7, characterized in that: The second sling and the auxiliary rope are connected to the suspended equipment through auxiliary parts respectively; The auxiliary parts include connecting bolts and an annular baffle; The end of the connecting bolt is threadedly connected to the suspended equipment; The connecting bolt is sleeved with an annular baffle fixedly connected thereto; The outer wall of a portion A of the connecting bolt between the head thereof and the annular baffle is a smooth outer wall.

9. A three-point auxiliary turning sling according to claim 8, characterized in that: There are also hanging parts and two rotating parts; The hanging piece is sleeved on one part A, and a rotating piece is sleeved on each of the remaining two parts A; The end of the rotating member away from the corresponding part A is provided with a rotating hole for connecting with the corresponding sling 2, and the axis of the rotating hole is parallel to the axis of the corresponding part A; An adjustment hole is provided on the end of the pendant away from the corresponding part A for connection with the auxiliary rope, and the axis of the adjustment hole is perpendicular to the axis of the corresponding part A.

10. A three-point auxiliary turning sling according to claim 7, characterized in that: A ring is arranged at the top end of the first sling.

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