Anti-falling pin shaft

Abstract

The utility model discloses an anti-falling pin shaft. The anti-falling pin shaft comprises a pin shaft rod and an anti-falling cross frame, wherein the assembling length of the anti-falling cross frame is adjusted through a long screw rod. When the cable-stayed winding width is increased or the cable-stayed winding number is increased, the middle eye plate of the eye plates is correspondingly increased, so that the width of the eye plates is increased, at the moment, the long screw rod is correspondingly screwed out outwards from the axial direction of the pin shaft rod for adaptation, the anti-falling cross frame conducts adaptation adjustment through the long screw rod, the anti-falling cross frame and the anti-falling plate abut against the two side eye plates, and the anti-falling pin shaft is located in the eye holes to achieve anti-falling. The problems that an anti-falling piece cannot be adjusted to adapt to the actual connection situation, and practicability is poor are solved.

Description

Technical Field

[0001] The utility model relates to an anti - detachment pin shaft, belonging to the technical field of connecting pins. Background Art

[0002] For movable equipment such as crawler cranes on an offshore wind power hoisting platform, in non - operating conditions, due to the influence of sea breeze, temporary diagonal bracing is required.

[0003] When carrying out temporary diagonal bracing, ropes or steel chains and other winding diagonal bracing members are wound around the pin shaft of the eye plate. In a sea breeze environment, it is necessary to ensure that the pin shaft has anti - detachment properties. For the existing anti - detachment pin shaft technology, see Chinese Patent Publication No. CN208951065U. Although the first stop block can achieve anti - detachment through bolts, there is a problem that the anti - detachment part cannot be adjusted to adapt to the actual connection situation, resulting in poor practicability. Content of the Utility Model

[0004] To solve the above - mentioned technical problems, the utility model provides an anti - detachment pin shaft.

[0005] The utility model is achieved through the following technical solutions.

[0006] An anti - detachment pin shaft provided by the utility model includes:

[0007] A pin shaft rod and an anti - detachment cross frame whose assembly length is adjusted by a long screw.

[0008] One end of the pin shaft rod is fixedly connected with an anti - detachment plate. The anti - detachment plate is larger than the pin shaft rod, and there is a rope - sleeving groove between the anti - detachment plate and the pin shaft rod.

[0009] A threaded hole for screwing with the long screw is provided in the middle of the pin shaft rod.

[0010] The other end of the pin shaft rod is provided with a cross groove. The anti - detachment cross frame in the shape of a cross can be slidably installed in the cross groove, and the anti - detachment cross frame is larger than the pin shaft rod.

[0011] A connecting cylinder through which the long screw passes is provided in the middle of the anti - detachment cross frame; a cylindrical cavity for accommodating the connecting cylinder in the middle of the anti - detachment cross frame is provided on the pin shaft rod; the cylindrical cavity is larger than the threaded hole.

[0012] A diagonal stay for diagonal bracing force is wound around the pin shaft rod.

[0013] The beneficial effects of the present utility model are as follows: when the width of the diagonal tension winding increases or the number of strands increases, the corresponding intermediate eye plate of the eye plate increases, causing the width of the eye plate to increase. At this time, the long screw rotates out axially from the pin shaft rod correspondingly to adapt, and the anti-detachment cross is adjusted through the long screw. The anti-detachment cross and the anti-detachment plate press against the two side eye plates, enabling the anti-detachment pin shaft to be located within the eye hole to achieve anti-detachment, solving the problem of poor practicability where the anti-detachment component cannot be adjusted to adapt to the actual connection situation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is the front view schematic diagram of the eye plate of the present utility model;

[0015] Figure 2 is the top view schematic diagram of the eye plate of the present utility model;

[0016] Figure 3 is the side view schematic diagram of the eye plate of the present utility model;

[0017] Figure 4 is the side view schematic diagram when the eye plate of the present utility model is applied through the anti-detachment pin shaft;

[0018] Figure 5 is the top view schematic diagram of the anti-detachment pin shaft of the present utility model;

[0019] Figure 6 is the schematic diagram of the anti-detachment cross of the anti-detachment pin shaft of the present utility model;

[0020] Figure 7 is Figure 5 the sectional view along line B-B in ;

[0021] In the figure: 1 - mounting base plate; 21 - side eye plate; 22 - intermediate eye plate; 3 - pin shaft hole; 5 - diagonal tension; 7 - anti-detachment pin shaft; 71 - anti-detachment plate; 72 - rope sleeving groove; 73 - pin shaft rod; 74 - threaded hole; 75 - cylindrical cavity; 76 - cross groove; 77 - long screw; 78 - anti-detachment cross; DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The technical solution of the present utility model will be further described below, but the scope of protection claimed is not limited thereto.

[0023] As Figures 1 to 7 shown.

[0024] When performing diagonal tension temporary reinforcement, sometimes more than two diagonal tension members are required for diagonal tension, as shown in Chinese Patent Publication No. CN113915478B. When winding and diagonal tensioning with a winding diagonal tension member such as a rope or a steel chain, when there is only one eye plate with a winding hole space, it causes the problem that two diagonal tensions cannot be wound and installed synchronously.

[0025] A eyebolt for temporary fixing of offshore activity equipment in the present application includes:

[0026] An installation base plate 1 that is fixed on the deck of an offshore wind power hoisting platform during use. A side eyebolt 21 is fixed on the installation base plate 1. There are two side eyebolts 21 distributed at intervals. An intermediate eyebolt 22 is fixed on the installation base plate 1 between the two side eyebolts 21. When there are multiple intermediate eyebolts 22, there are intervals between the intermediate eyebolts 22. Pin shafts holes 3 are provided on the intermediate eyebolt 22 and the side eyebolts 21 for an anti - detachment pin shaft 7 to be inserted. Two winding hole spaces for two stay cables 5 to pass through and wind around are formed between the intermediate eyebolt 22 and the two side eyebolts 21. When there are multiple intermediate eyebolts 22, the winding hole spaces increase accordingly.

[0027] Two stay cables 5 correspond to form two winding hole spaces between the intermediate eyebolt 22 and the two side eyebolts 21. The two stay cables 5 are synchronously wound around the anti - detachment pin shafts 7 on both sides of the intermediate eyebolt 22, solving the problem that when there is only one eyebolt with a winding hole space, the two stay cables cannot be wound and installed synchronously.

[0028] An anti - detachment pin shaft 7 in the present application includes:

[0029] A pin shaft rod 73 as the main structure. One end of the pin shaft rod 73 is integrally and fixedly connected with an anti - detachment plate 71. The anti - detachment plate 71 is larger than the pin shaft rod 73. There is a rope - sleeving groove 72 between the anti - detachment plate 71 and the pin shaft rod 73. The stay cable 5 composed of a rope or a steel chain can be initially wound in the rope - sleeving groove 72.

[0030] A threaded hole 74 is provided in the middle of the pin shaft rod 73. The threaded hole 74 is used for screwing with a long screw rod 77.

[0031] A cross - slot 76 is provided at the other end of the pin shaft rod 73. A cross - shaped anti - detachment cross 78 is slidably installed in the cross - slot 76. The anti - detachment cross 78 is larger than the pin shaft rod 73. The anti - detachment cross 78 and the anti - detachment plate 71 prevent detachment at both ends of the pin shaft rod 73. A cylindrical cavity 75 is provided on the pin shaft rod 73 for accommodating a connecting cylinder 79 in the middle of the anti - detachment cross 78. The cylindrical cavity 75 is larger than the threaded hole 74. The anti - detachment cross 78 is installed on the other end of the pin shaft rod 73 by screwing the long screw rod 77 with the threaded hole 74. The anti - detachment cross 78 is adjusted axially on the pin shaft rod 73 by the long screw rod 77 to adapt to eyebolts of different widths.

[0032] When the winding width of the stay cable composed of ropes or steel chains increases or the number of strands increases, the middle eye plate 22 of the eye plate correspondingly increases, causing the width of the eye plate to increase. At this time, the long screw 77 axially rotates outwards correspondingly from the pin shaft rod 73 to adapt, solving the problem of poor practicability that the anti-disengagement part cannot be adjusted to adapt to the actual connection situation. At this time, the anti-disengagement cross 78 and the anti-disengagement plate 71 abut against the two side eye plates 21 to achieve anti-disengagement, making the anti-disengagement pin shaft 7 located within the eye hole 23, and the stay cable 5 is wound synchronously on the anti-disengagement pin shafts 7 on both sides of the middle eye plate 22.

Claims

1. An anti-drop pin shaft, characterized in that: include: A pin shaft rod (73) and an anti-drop cross (78) whose assembly length is adjusted by a long screw rod (77); The pin shaft rod (73) is fixedly connected to an anti-slip plate (71) at one end of the pin shaft rod (73), the anti-slip plate (71) is larger than the pin shaft rod (73), and a rope groove (72) is provided between the anti-slip plate (71) and the pin shaft rod (73); The middle part of the pin shaft rod (73) is provided with a threaded hole (74) for screwing with the long screw rod (77); The other end of the pin shaft rod (73) is provided with a cross groove (76), and a cross-shaped anti-dropout cross (78) can be slidably installed in the cross groove (76), and the anti-dropout cross (78) is larger than the pin shaft rod (73).

2. The anti-drop pin according to claim 1, characterized in that: The middle of the anti-slip cross (78) is provided with a connecting tube (79) for the long screw rod (77) to penetrate, and the pin shaft rod (73) is provided with a cylindrical cavity (75) for accommodating the connecting tube (79) in the middle of the anti-slip cross (78); the cylindrical cavity (75) is larger than the threaded hole (74).

3. The anti-drop pin according to claim 1, characterized in that: The pin shaft rod (73) is wound with an oblique tie (5) for obliquely pulling and bearing force.

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