Shackle assembly

Abstract

The utility model relates to the technical field of shackles, in particular to a shackle assembly which comprises a shackle body, shackle pin shafts are arranged at the two ends of the shackle body, pin shaft nuts are arranged at one ends of the shackle pin shafts, annular grooves are formed in one ends of the shackle pin shafts, and the annular grooves are located in the connecting positions of the shackle pin shafts and the pin shaft nuts. The shackle pin shaft connecting structure has the advantages that through the arrangement of the annular groove and the limiting screw, the pin shaft nut can be prevented from being stopped, and the stability of connection between the pin shaft nut and the shackle pin shaft is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of shackles, in particular to a shackle assembly. Background Art

[0002] The shackle is a connecting piece used for lifting and traction. Its structure is to install a sealing cross pin at both ends of the opening of a half ring body. The publication number is "CN 217264184 U", a hot-dip galvanized American bow shackle for lifting, including a ring body, auxiliary devices are connected to both sides of the lower end of the ring body, and the lower ends of the two auxiliary devices are connected to the adjustment device. The lower ends of the two connecting plates are connected to the plug blocks, and the screws are inserted between the two plug blocks, and nuts are provided at both ends of the screws, so as to facilitate the size adjustment. The bow shackle can be stabilized without hand support before being connected to the required lifting equipment, reducing the work intensity of the staff;

[0003] However, the shackle in the above document may cause the nut to move on the screw rod or even slip off the screw rod under the condition of frequent and violent vibration of the pile hammer, thus posing a safety hazard. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide a shackle assembly with double insurance and prevent the pin shaft nut from being stuck in retreat in view of the deficiencies of the above-mentioned prior art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a shackle assembly, comprising a shackle body, a shackle pin is provided at both ends of the shackle body, a pin nut is provided at one end of the shackle pin, and the characteristic is that an annular groove is provided at one end of the shackle pin, and the annular groove is located at the connection between the shackle pin and the pin nut, and a limit screw is provided between the pin nut and the annular groove.

[0006] Adopting the above-mentioned technical scheme: Compared with the structural design of the nut in the prior art, the utility model adopts the setting of an annular groove and a limit screw, and the limit screw is arranged between the annular groove and the pin nut, which can prevent the pin nut from retreating and limit the position of the pin nut on the shackle pin shaft, so that it will not move easily under any working conditions, thereby ensuring the firmness and safety of the shackle connection.

[0007] A further configuration of the utility model is that the pin nut is provided with a first mounting hole for mounting a limit screw, the first mounting hole penetrates from the outer wall to the inner wall of the pin nut, and the first mounting hole corresponds to the annular groove.

[0008] The above-mentioned technical solution is adopted: through the setting of the first mounting hole and the limit screw, during use, when the shackle pin passes through the two ends of the shackle body, the pin nut is sleeved on one end of the shackle pin, so that the first mounting hole on the pin nut is aligned with the annular groove, and then the limit screw is installed in the first mounting hole, thereby preventing the pin nut from retreating and facilitating assembly by the staff.

[0009] A further configuration of the utility model is: a first limiting step is provided in the first mounting hole, the limiting screw includes a nut and a screw rod connected to the nut, the first limiting step can be abutted against the nut, the end of the screw rod is located in the annular groove, and a plug-in groove for inserting an external tool is provided on the top of the nut.

[0010] The above technical solution is adopted: by setting the first limit step, the installed limit screw can be limited, and at the same time the end of the screw is located in the annular groove to prevent the pin nut from being stuck, thereby improving safety and durability; during the assembly process, the staff can use tools such as screwdrivers to insert into the plug-in slot for installation or disassembly, and the structural shape of the plug-in slot can be changed at will, whether it is a long strip, hexagonal, etc.

[0011] A further configuration of the utility model is that a double-layer gasket is provided between the first limiting step and the nut.

[0012] The above technical solution is adopted: by setting a double-layer washer, the firmness between the limit screw and the first mounting hole is further improved, and the limit screw is prevented from loosening, thereby causing the pin nut to stop retreating.

[0013] A further configuration of the utility model is that a second mounting hole is provided at the end of the shackle pin shaft close to the pin shaft nut, a safety pin is provided in the second mounting hole, a limiting flange is provided on the top of the safety pin, and the diameter of the limiting flange is larger than the diameter of the second mounting hole.

[0014] The above technical solution is adopted: through the setting of the second mounting hole and the safety pin, the safety pin is preferably made of high-strength material. During the assembly process, the safety pin is installed into the second mounting hole, and the limiting flange on the top of the safety pin will be against the end face of the shackle pin shaft. The limiting flange prevents the safety pin from being installed too deep.

[0015] A further configuration of the utility model is: a third mounting hole is horizontally penetrated through the bottom of the safety pin, a pin pin is arranged in the third mounting hole, the pin pin comprises a closed ring, a limit rod and an elastic rod, one end of the limit rod is connected to the closed ring, and the other end is provided with a hook; one end of the elastic rod is connected to the closed ring, and the other end can be engaged with the limit rod through the hook, and the elastic rod can pass through the third mounting hole.

[0016] The above technical solution is adopted: through the setting of the third mounting hole and the pin pin, the safety pin is further prevented from falling off. During assembly, it is only necessary to pass the elastic rod through the third mounting hole and press it downward to pass over the hook. After it is located in the hook, the elastic rod and the limit rod are engaged, thereby further improving safety.

[0017] The utility model is further configured as follows: the shackle body comprises an arched portion, two ends of the arched portion are parallel to each other, and buckle arms are respectively provided at the two ends, and button holes are provided on the buckle arms, and the shackle pin shaft can pass through the button holes.

[0018] The above technical solution is adopted: during use, the connection of the shackle can be completed by passing the shackle pin through the eyelet, inserting the pin nut into one end, and then installing the limit screw and the safety pin respectively, which is convenient for the staff to assemble. At the same time, due to the setting of the bow part, the inner diameter can be expanded to accommodate multiple lifting slings. At the same time, the bow-shaped design of the bow part increases the bearing capacity of the shackle.

[0019] A further configuration of the utility model is that a positioning step is provided at one end of the shackle pin away from the pin nut, and the diameter of the positioning step is larger than the diameter of the buttonhole.

[0020] The above technical solution is adopted: by setting the positioning step, the assembly between the shackle pin and the buttonhole is facilitated, and the assembly efficiency of the staff is improved.

[0021] A further configuration of the utility model is that a U-shaped groove is provided on the arched portion, and the U-shaped groove is semicircular.

[0022] By adopting the above technical solution: through the setting of the U-shaped groove, which is semicircular, when the shackle is hoisted, the overall strength of the connection part can be enhanced, which helps to disperse the stress and avoid stress concentration on a certain point of the shackle, thereby improving the durability and safety of the shackle.

[0023] The utility model is further described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0025] Figure 2 It is a cross-sectional view of the utility model.

[0026] Figure 3 For this utility model Figure 2 Enlarged view of point A in the middle.

[0027] Figure 4 This is an exploded view of the utility model.

[0028] Figure 5 For this utility model Figure 4 Enlarged view of point B in the middle.

[0029] Explanation of reference numerals: bow portion 1, U-shaped groove 11, buckle arm 2, button eye 3, shackle pin 4, annular groove 41, positioning step 42, second mounting hole 43, safety pin 44, limiting flange 441, third mounting hole 442, pin pin 443, closing ring 443a, limiting rod 443b, hook 4431b, elastic rod 443c, pin nut 5, first mounting hole 51, first limiting step 511, limiting screw 52, ​​nut 521, plug-in groove 521a, screw 522, double-layer washer 53. DETAILED DESCRIPTION

[0030] This specific embodiment and the drawings of the disclosed embodiments only involve structures related to the disclosed embodiments, and other structures may refer to the general design. After reading this specification, those skilled in the art may make modifications to this embodiment without creative contribution as needed, but as long as they are within the scope of the claims of the utility model, they are protected by the patent law.

[0031] like Figure 1-5 A shackle assembly is shown, including a shackle body, a shackle pin 4 is provided at both ends of the shackle body, a pin nut 5 is provided at one end of the shackle pin 4, an annular groove 41 is provided at one end of the shackle pin 4, and the annular groove 41 is located at the connection between the shackle pin 4 and the pin nut 5, a limit screw 52 is provided between the pin nut 5 and the annular groove 41, and the pin nut 5 is provided with a first mounting hole 51 for installing the limit screw 52, ​​and the first mounting hole 51 passes through the outer wall of the pin nut 5 to the inner wall, and the first mounting hole 51 corresponds to the annular groove 41.

[0032] like Figure 1-5 The first mounting hole 51 shown is provided with a first limiting step 511, and the limiting screw 52 includes a nut 521 and a screw rod 522 connected to the nut 521. The first limiting step 511 can be abutted against the nut 521, and the end of the screw rod 522 is located in the annular groove 41. The top of the nut 521 is provided with a plug-in groove 521a for inserting external tools, and a double-layer washer 53 is provided between the first limiting step 511 and the nut 521.

[0033] like Figure 1-5 The end of the shackle pin 4 near the pin nut 5 is provided with a second mounting hole 43, a safety pin 44 is provided in the second mounting hole 43, and a limiting flange 441 is provided on the top of the safety pin 44, and the diameter of the limiting flange 441 is larger than the diameter of the second mounting hole 43; Figure 1-5A third mounting hole 442 is transversely penetrated at the bottom of the safety pin 44 shown, and a pin pin 443 is arranged in the third mounting hole 442. The pin pin 443 includes a closed ring 443a, a limiting rod 443b and an elastic rod 443c. One end of the limiting rod 443b is connected to the closed ring 443a, and the other end is provided with a hook 4431b; one end of the elastic rod 443c is connected to the closed ring 443a, and the other end can be engaged with the limiting rod 443b through the hook 4431b, and the elastic rod 443c can pass through the third mounting hole 442.

[0034] like Figure 1-5 The shackle body shown includes an arched portion 1, on which a U-shaped groove is provided, the U-shaped groove is semicircular, the two ends of the arched portion 1 are parallel to each other, and a buckle arm 2 is provided at each end, a button hole 3 is provided on the buckle arm 2, and the shackle pin shaft 4 can pass through the button hole 3, and the shackle pin shaft 4 is provided with a positioning step 42 at one end away from the pin shaft nut 5, and the diameter of the positioning step 42 is larger than the diameter of the button hole 3

[0035] During use, compared with the structural design of the nut in the prior art, the utility model adopts the setting of the annular groove 41 and the limit screw 52, ​​and the limit screw 52 is set between the annular groove 41 and the pin nut 5, which can prevent the pin nut 5 from retreating and limit the position of the pin nut 5 on the shackle pin 4 so that it will not move easily under any working conditions, thereby ensuring the firmness and safety of the shackle when connected. At the same time, the setting of the safety pin 44 and the pin pin 443 plays a double insurance role, further improving the safety of the shackle after connection.

Claims

1. A shackle assembly, comprising a shackle body, wherein both ends of the shackle body are provided with a shackle pin, and one end of the shackle pin is provided with a pin nut. Features: An annular groove is provided at one end of the shackle pin, and the annular groove is located at the connection between the shackle pin and the pin nut, and a limiting screw is provided between the pin nut and the annular groove.

2. A shackle assembly according to claim 1, Features: The pin nut is provided with a first mounting hole for mounting a limit screw, the first mounting hole penetrates from the outer wall to the inner wall of the pin nut, and the first mounting hole corresponds to the annular groove.

3. A shackle assembly according to claim 2, Features: A first limiting step is provided in the first mounting hole, and the limiting screw includes a nut and a screw rod connected to the nut. The first limiting step can abut against the nut, the end of the screw rod is located in the annular groove, and a plug-in groove for inserting an external tool is provided on the top of the nut.

4. A shackle assembly according to claim 3, Features: A double-layer gasket is provided between the first limiting step and the nut.

5. A shackle assembly according to any one of claims 1 to 4, Features: A second mounting hole is provided at the end of the shackle pin shaft close to the pin shaft nut, a safety pin is provided in the second mounting hole, a limiting flange is provided on the top of the safety pin, and the diameter of the limiting flange is larger than the diameter of the second mounting hole.

6. A shackle assembly according to claim 5, Features: A third mounting hole is horizontally penetrated through the bottom of the safety pin, and a pin pin is arranged in the third mounting hole. The pin pin comprises a closed ring, a limit rod and an elastic rod. One end of the limit rod is connected to the closed ring, and the other end is provided with a hook; one end of the elastic rod is connected to the closed ring, and the other end can be engaged with the limit rod through the hook, and the elastic rod can pass through the third mounting hole.

7. A shackle assembly according to claim 1 or 2 or 3 or 4 or 6, Features: The shackle body comprises an arched portion, two ends of the arched portion are parallel to each other, and buckle arms are respectively provided at the two ends. The buckle arms are provided with button holes, and the shackle pin shaft can pass through the button holes.

8. A shackle assembly according to claim 7, Features: A positioning step is provided at one end of the shackle pin away from the pin nut, and the diameter of the positioning step is larger than the diameter of the button hole.

9. A shackle assembly according to claim 8, Features: The arched portion is provided with a U-shaped groove, and the U-shaped groove is semicircular.

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