Hoisting connecting piece convenient for unloading

Abstract

The utility model discloses a hoisting connecting piece convenient for unloading, which comprises two lifting lugs symmetrically and fixedly arranged at the top of a hoisted object; the perforated bolt simultaneously penetrates through the two lifting lugs and a lifting ring positioned between the two lifting lugs, and the lifting ring is connected with a lifting cable of a crane; the R-shaped pin is inserted into the pin head of the perforated bolt; one end of the first traction rope is tied at the tail end of the perforated bolt, and the other end of the first traction rope is held in a hand of a worker; and one end of the second traction rope is tied on the R-shaped pin, and the other end of the second traction rope is held in the hand of the worker. When a hoisted object is placed on a designated plane and the hoisting cable no longer bears the weight of the hoisted object, a worker pulls the second pulling rope to pull out the R-shaped pin from the perforated plug pin and then pulls the first pulling rope to pull out the perforated plug pin from the position between the two lifting lugs, discharging is completed, the structure is simple, operation is convenient and fast, limitation of the construction environment is avoided, and the working efficiency is improved. And the hoisting and unloading efficiency and the construction safety are effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hoisting construction, in particular to a hoisting connector which is convenient for unloading. Background Art

[0002] In industries such as construction, manufacturing and logistics, lifting operations are common and crucial for the handling and installation of materials. However, traditional lifting and unloading methods often rely on manual operations, especially during the unloading stage, when workers need to use lifting equipment to reach the top of the object to be unloaded for unhooking operations. This process is not only inefficient, but also has many safety hazards, especially in some small or complex construction sites, such as high-rise buildings, underground facilities or bridge construction, where large lifting equipment may not be able to enter or be placed, which directly limits the flexibility and feasibility of manual unloading operations.

[0003] Even in sites where lifting equipment is allowed, if the installation location of the object to be unloaded is far away from the reach of the lifting equipment, the workers cannot directly touch the object to be unloaded, which increases the difficulty of operation and safety risks. Each unloading requires the cooperation of lifting equipment and professionals, which not only consumes a lot of time, but also increases the cost of the project. Especially in projects with frequent lifting requirements, this inefficient unloading method becomes a bottleneck in the entire construction process.

[0004] To this end, the present application specifically proposes a lifting connector that is convenient for unloading to solve the above technical problems. Utility Model Content

[0005] The main purpose of the utility model is to solve the above-mentioned deficiencies and provide a lifting connector that is convenient for unloading, does not require manual high-altitude operations, and can adapt to the lifting connector in complex construction environments, thereby achieving a more efficient and safer material unloading process.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] A lifting connector for easy unloading, comprising: two lifting ears, symmetrically fixed on the top of the lifting object; a perforated pin, simultaneously passing through the two lifting ears and a lifting ring located between the two lifting ears, the lifting ring being connected to the lifting cable of the crane; an R-shaped pin, inserted into the pin head of the perforated pin; a first traction rope, one end of which is tied to the end of the perforated pin, and the other end is held in the hand of a staff member; a second traction rope, one end of which is tied to the R-shaped pin, and the other end is held in the hand of a staff member.

[0008] Furthermore, the piercing pin includes a square pin body, a cylindrical pin head fixedly arranged at one end of the square pin body and a pull ring fixedly arranged at the other end of the square pin body, one end of the first traction rope is tied to the pull ring, and the two lifting ears are provided with limiting square holes that cooperate with the square pin body.

[0009] Furthermore, the cylindrical pin head is provided with two pin holes which are perpendicular to the axis of the cylindrical pin head, and the two pin holes are perpendicular to each other and to a group of opposite side surfaces of the square pin body.

[0010] Furthermore, a limit sliding assembly is fixedly arranged on the opposite surfaces of the two lifting ears, and the limit sliding assembly includes a limit sleeve fixedly arranged at the limit square hole and a plurality of rollers evenly arranged and penetrated on the side walls around the limit sleeve, and the roller penetrates into one side of the side wall of the limit sleeve to abut against the perforated pin, and a gap for penetrating the lifting ring is left between the two limit sleeves.

[0011] Furthermore, the limiting sliding assembly also includes a baffle plate arranged at the bottom of the limiting sleeve, one end of the baffle plate is fixedly arranged at the bottom of the two opposite ends of the limiting sleeves, and the other end is fixedly arranged at the base of the lifting ear.

[0012] Furthermore, it also includes an anti-fall protection rope, one end of which is tied to the end of the perforated pin and the other end is tied to the lifting cable.

[0013] The beneficial effects of the utility model are embodied in:

[0014] 1. The utility model symmetrically arranges lifting ears on the hoisting object, and uses a perforated pin to simultaneously insert the two lifting ears and the lifting ring between the two lifting ears, an R-shaped pin is inserted at the pin head of the perforated pin to prevent it from falling off, and a first traction rope and a second traction rope are respectively tied to the end of the perforated pin and the R-shaped pin. When the hoisting object has been placed on the designated plane and the lifting cable no longer bears the weight of the hoisting object, the staff first pulls the second traction rope to pull the R-shaped pin out of the perforated pin, and then pulls the first traction rope to pull the perforated pin out from between the two lifting ears. At this time, the crane is controlled to lift the lifting ring to complete unloading. The utility model has a simple structure and is easy to operate, is not restricted by the construction environment, and effectively improves the hoisting and unloading efficiency and construction safety.

[0015] 2. The utility model provides a limiting sliding assembly consisting of a limiting sleeve, a roller and a baffle on the opposite surfaces of the two lifting ears. The piercing pin is limited and rolled by the roller during the insertion and removal process, which reduces the insertion and removal resistance and makes the piercing pin more accurately aligned with the hole, greatly improving the convenience of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0017] Figure 1 This is a schematic diagram of the use state of an embodiment of the utility model;

[0018] Figure 2 A schematic diagram of a usage state of an embodiment of the utility model from another perspective;

[0019] Figure 3 This is an exploded schematic diagram of the main structure of an embodiment of the utility model;

[0020] Figure 4 This is a schematic diagram of a piercing pin structure according to an embodiment of the utility model;

[0021] Figure 5 It is a schematic diagram of the structure of a position-limiting sliding assembly according to an embodiment of the utility model.

[0022] In the figure: 1. lifting ear; 2. lifting object; 3. perforated pin; 31. square pin body; 32. cylindrical pin head; 33. pull ring; 4. lifting ring; 5. lifting cable; 6. R-shaped pin; 7. first traction rope; 8. second traction rope; 9. limit sliding assembly; 91. limit sleeve; 92. roller; 93. baffle; 10. limit square hole; 11. pin hole; 12. anti-fall protection rope. DETAILED DESCRIPTION

[0023] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0024] like Figure 1-5 As shown, the utility model provides a lifting connection piece that is convenient for unloading, comprising:

[0025] Two lifting ears 1 are symmetrically fixed on the top of the lifting object 2;

[0026] A piercing pin 3 passes through the two lifting ears 1 and a lifting ring 4 located between the two lifting ears 1 at the same time, and the lifting ring 4 is connected to a lifting cable 5 of the crane;

[0027] An R-shaped pin 6 is inserted into the pin head of the piercing pin 3;

[0028] One end of the first traction rope 7 is tied to the end of the perforated pin 3, and the other end is held in the hand of the staff; one end of the second traction rope 8 is tied to the R-shaped pin 6, and the other end is held in the hand of the staff.

[0029] like Figure 1 and Figure 2 As shown, it is a schematic diagram of the use status of the lifting connection. When the lifting object 2 has been placed on the designated plane and the lifting cable 5 no longer bears the weight of the lifting object 2, the staff first pulls the second traction rope 8 to pull the R-shaped pin 6 out of the perforated plug 3, and then pulls the first traction rope 7 to pull the perforated plug 3 out from between the two lifting ears 1. At this time, the crane is controlled to lift the lifting ring 4, and the lifting ring 4 can be easily detached after losing the limiting effect of the perforated pin 3, thereby completing the unloading. The structure is simple and the operation is convenient, it is not limited by the construction environment, and the lifting and unloading efficiency and construction safety are effectively improved.

[0030] In one embodiment, the piercing pin 3 includes a square pin body 31, a cylindrical pin head 32 fixedly arranged at one end of the square pin body 31, and a pull ring 33 fixedly arranged at the other end of the square pin body 31, one end of the first traction rope 7 is tied to the pull ring 33, and the two lifting ears 1 are provided with limiting square holes 10 that cooperate with the square pin body 31.

[0031] With this design, after the piercing pin 3 is inserted between the two lifting ears 1, the square pin body 31 is plugged into and matched with the limiting square hole 10, so that the piercing pin 3 cannot rotate around its own axis, thereby improving the plugging stability of the piercing pin 3 to a certain extent.

[0032] In one embodiment, two pin holes 11 perpendicular to the axis of the cylindrical pin head 32 are formed on the cylindrical pin head 32 . The two pin holes 11 are perpendicular to each other and to a set of opposite side surfaces of the square pin body 31 .

[0033] With this design, no matter how the perforated pin 3 is inserted between the two lifting ears 1, it is possible to ensure that there is a pin hole 11 in the vertical direction. At this time, the open end of the R-shaped pin 6 is inserted into the pin hole 11 upward, which can ensure that the closed section of the R-shaped pin 6 is always downward during the entire lifting and unloading process. In this way, when the second traction rope 8 is pulled, the R-shaped pin 6 is more easily pulled out of the pin hole 11.

[0034] In one embodiment, a limit sliding assembly 9 is fixedly provided on opposite surfaces of the two lifting ears 1. The limit sliding assembly 9 includes a limit sleeve 91 fixedly provided at the limit square hole 10 and a plurality of rollers 92 evenly arranged and penetrated on the side walls around the limit sleeve 91. The roller 92 penetrates into one side of the side wall of the limit sleeve 91 and abuts against the through-hole pin 3. A gap for penetrating the lifting ring 4 is left between the two limit sleeves 91.

[0035] With this design, when inserting the piercing pin 3 between the two lifting ears 1, the staff must first hold the piercing pin 3 and align it with the limiting square hole 10 of the first lifting ear 1 and insert it. Then, due to the limiting and rolling effect provided by the roller 92, the staff only needs to gently push the piercing pin 3 to automatically align it with the next limiting square hole 10 and easily insert it. The operation is simple and saves time and effort.

[0036] In addition, its more important role is: when the staff pulls the first traction rope 7 to pull the piercing pin 3 out of the two lifting ears 1, since the staff is located below the hoisting object 2, there will inevitably be a certain angle between the first traction rope 7 and the piercing pin 3. When the staff applies tension to the piercing pin 3 through the first traction rope 7, a component force in the vertical direction will be generated. This component force will cause one end of the cylindrical pin head 32 of the piercing pin 3 to rise, greatly increasing the friction resistance between the square pin body 31 and the limiting square hole 10. However, under the limiting and rolling action of the roller 92, before the piercing pin 3 is completely pulled out, the square pin body 31 basically only contacts the roller 92, which greatly reduces the resistance encountered by the piercing pin 3 during the pulling out process, allowing the staff to more easily pull out the piercing pin 3 by pulling the first traction rope 7.

[0037] In one embodiment, the limiting sliding assembly 9 further comprises a baffle 93 disposed at the bottom of the limiting sleeve 91 , one end of the baffle 93 is fixedly disposed at the bottom of the two opposite ends of the limiting sleeves 91 , and the other end is fixedly disposed at the base of the lifting ear 1 .

[0038] With this design, during the process of pulling out the perforating pin 3 and lifting the lifting ring 4, the lifting ring 4 cannot be inserted into the limiting sleeve 91 due to the blocking effect of the baffle 93, and the lifting ring 4 can be easily detached from between the two limiting sliding components 9 only by lifting it.

[0039] In one embodiment, a fall prevention protection rope 12 is further included, one end of which is tied to the end of the piercing pin 3 , and the other end is tied to the lifting cable 5 .

[0040] With this design, after the piercing pin 3 is completely pulled out, the piercing pin 3 is suspended on the lifting cable 5 with the help of the anti-fall protection rope 12, and will not fall from a height, thereby ensuring the personal safety of the staff. At the same time, the piercing pin 3 is also moved to the loading place with the lifting cable 5, so that the staff can use it again.

[0041] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

[0042] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0043] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, "multiple" means more than two. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

Claims

1. A lifting connector for easy unloading, characterized in that: include: Two lifting ears (1) are symmetrically fixed on the top of the lifting object (2); A piercing pin (3) is passed through the two lifting ears (1) and a lifting ring (4) located between the two lifting ears (1), wherein the lifting ring (4) is connected to a lifting cable (5) of a crane; An R-shaped pin (6) inserted into the pin head of the perforating pin (3); One end of the first traction rope (7) is tied to the end of the perforated plug pin (3), and the other end is held in the hands of the staff; one end of the second traction rope (8) is tied to the R-shaped pin (6), and the other end is held in the hands of the staff.

2. A lifting connector for easy unloading as claimed in claim 1, characterized in that: The piercing pin (3) comprises a square pin body (31), a cylindrical pin head (32) fixedly arranged at one end of the square pin body (31), and a pull ring (33) fixedly arranged at the other end of the square pin body (31); one end of the first traction rope (7) is tied to the pull ring (33); and the two lifting ears (1) are provided with limiting square holes (10) that cooperate with the square pin body (31).

3. A lifting connector for easy unloading as claimed in claim 2, characterized in that: The cylindrical pin head (32) is provided with two pin holes (11) which are perpendicular to the axis of the cylindrical pin head (32), and the two pin holes (11) are perpendicular to each other and to a group of opposite side surfaces of the square pin body (31).

4. A lifting connector for easy unloading as claimed in claim 2, characterized in that: A limit sliding assembly (9) is fixedly arranged on the opposite surfaces of the two lifting ears (1), and the limit sliding assembly (9) comprises a limit sleeve (91) fixedly arranged at the limit square hole (10) and a plurality of rollers (92) evenly arranged and penetrated on the side walls around the limit sleeve (91), one side of the roller (92) penetrates into the side wall of the limit sleeve (91) and abuts against the perforated pin (3), and a gap is left between the two limit sleeves (91) for penetrating the lifting ring (4).

5. A lifting connector for easy unloading as claimed in claim 4, characterized in that: The limiting sliding assembly (9) further comprises a baffle (93) arranged at the bottom of the limiting sleeve (91), one end of the baffle (93) being fixedly arranged at the bottom of the two opposite ends of the limiting sleeves (91), and the other end being fixedly arranged at the base of the lifting ear (1).

6. A lifting connector for easy unloading as claimed in claim 1, characterized in that: It also comprises a fall prevention protection rope (12), one end of which is tied to the end of the perforated plug (3) and the other end is tied to the lifting cable (5).

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