CN216180085U - Anti-loosening adjusting tool kit for safety pin beating of special hexagonal groove type nut - Google Patents
Anti-loosening adjusting tool kit for safety pin beating of special hexagonal groove type nut Download PDFInfo
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- CN216180085U CN216180085U CN202122745567.XU CN202122745567U CN216180085U CN 216180085 U CN216180085 U CN 216180085U CN 202122745567 U CN202122745567 U CN 202122745567U CN 216180085 U CN216180085 U CN 216180085U
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- adjusting sleeve
- nut
- safety pin
- hexagonal groove
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Abstract
The utility model provides an adjusting tool kit for looseness prevention of a special hexagonal groove type nut safety pin, which comprises an adjusting sleeve and a ratchet wrench matched with the adjusting sleeve. The adjusting sleeve is of a hollow cylindrical structure, the whole external shape of the adjusting sleeve is cylindrical, the internal shape of the adjusting sleeve is an inner hexagon, the specification size of the inner hexagon corresponds to the specification of nuts in different hexagon grooves, and the shape of the upper end of the adjusting sleeve can be matched with the ratchet wrench. Two symmetrical U-shaped notches are formed in the adjusting sleeve according to the positions of the notches of the hexagonal groove-shaped nuts, the width size of each U-shaped notch corresponds to the width size of the corresponding notch in the hexagonal groove-shaped nut, and the height H size of each U-shaped notch is enough to ensure that the height H size of each U-shaped notch does not interfere with the highest point of the nut after safety is achieved when the tool is used. The ratchet wrench can correspond to adjusting sleeves of different specifications. According to the utility model, when the nut safety pin has free rotation after being installed, the rotation of the safety pin is smoothly adjusted and eliminated by using a tool, so that the product quality is improved and the operation efficiency is also improved.
Description
Technical Field
The utility model relates to an adjusting tool kit for looseness prevention of a special hexagonal groove type nut safety pin, which is mainly applied to the field of assembly and manufacturing of modern airplanes.
Background
In the assembly and manufacturing process of modern airplanes, the connection form of a hexagon groove type nut and a bolt with a safety hole is often applied in the structural connection of the airplanes, and after the nut is connected, the nut limits torque and then is used for safety and looseness prevention, so that the structural strength and flight safety are prevented from being influenced by the looseness of the nut in the flight of the airplanes. In actual operation, after the safety pin is loosened according to technical specifications, the final forming shape of the safety pin is required to meet requirements, the safety pin cannot freely rotate around the axis of the safety pin, the diameter of a pin hole of a general bolt is larger than the outer diameter of the safety pin, the width of a notch of a hexagonal groove-shaped nut is larger than the size of the safety pin, the safety pin is made of harder materials, the safety pin cannot be precisely formed and fixed, and the phenomenon that the formed pin can freely rotate around the axis often occurs after installation. Aiming at the technical problem, a solution is also clearly known in the technical specification, namely, when the safety pin rotates, the nut can be rotated (the nut can be screwed or unscrewed) within a certain range to ensure that the notch of the hexagonal nut can be tightly attached (attached) to the safety pin, so that the phenomenon that the pin can rotate and loosen after safety is applied is eliminated.
At present, when the safety pin is removed from a production workshop and the problem of rotation looseness exists during installation, a wrench is often used for matching with clamping pliers to achieve clamping, specifically, the safety pin protruding out of a nut part after forming is clamped by the pliers, then the nut is finely adjusted by the wrench, the nut and the formed safety pin move in a groove opening range in the opposite direction, and the purpose of tight adhesion is achieved. However, the operation method has the disadvantages that after the safety pin is arranged on the nut by the universal inner hexagonal socket or the wrench, the anti-loose formed safety pin can be deformed to protrude out of the nut notch, so that the protruding part can block the wrench or the sleeve to be smoothly matched with the nut working surface, therefore, only the open wrench can be used for carefully clamping two edges of the nut hexagonal head at an inclined angle, and the nut hexagonal head is finely adjusted by matching with a clamping pliers. The special adjusting tool for preventing loosening of the safety pin during the process of driving the safety by the hexagonal groove type nut can avoid the obstacle after the safety pin is formed, realize the easy and quick adjustment of the nut, eliminate the problem of free rotation of the safety pin and reduce the quality loss caused by repair and rework.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of providing an adjusting tool kit for preventing looseness of a special hexagonal groove type nut during installation of an anti-loose safety pin, and particularly relates to a special tool which realizes smooth matching of an adjusting sleeve and a hexagonal nut by utilizing a U-shaped notch on the adjusting sleeve in the special tool to avoid the blockage of the formed safety pin, realizes the purpose of opposite movement of a nut notch and the safety pin by utilizing a ratchet wrench to rotate the adjusting sleeve, realizes the tight adhesion (close adhesion) of the notch on the nut and the safety pin, and eliminates the free rotation of the safety pin around the axis (note: the axis of the safety pin is the axis of a pin hole on a bolt, and can refer to figure 6).
In order to achieve the purpose, the technical scheme adopted by the utility model is as follows:
an adjusting tool kit for preventing looseness of a safety pin of a special hexagonal groove type nut comprises an adjusting sleeve 2 (kit) and a ratchet wrench 1 matched with the adjusting sleeve, and the attached drawing 1 is referred.
The adjusting sleeve 2 (refer to the attached drawing 2) is of a hollow cylinder structure, the whole external shape is cylindrical, the internal shape is an inner hexagon, the cross section is of a hexagonal structure, and the specification size of the inner hexagon (the S value in the attached drawing 2 is the distance between two parallel sides of the hexagonal structure) corresponds to the specifications of nuts in different hexagonal groove shapes. The shape of the upper end of the adjusting sleeve 2 can be matched with the ratchet wrench (which can rotate forward and backward), and the matching size of the adjusting sleeve and the ratchet wrench is the same
Adjusting sleeve 2 on set up two symmetrical U type breachs according to the position of the notch of hexagon groove type nut, the width dimension of U type breach (W value in the attached figure 2) corresponds the width dimension of notch on the corresponding hexagon groove type nut, the height H size of U type breach will be enough not to interfere with the nut peak after having beaten the insurance when guaranteeing the instrument to use, above size all guarantee back adjusting sleeve 2 can realize that the instrument avoids the space obstacle that the safety catch formed after the shaping, the adjusting sleeve can with beat the hexagon groove type nut after the insurance complete cooperation.
The ratchet wrench 1 can correspond to adjusting sleeves of different specifications, and the ratchet wrench 1 can realize the fine adjustment of the adjusting sleeve 2 in the positive and negative directions so as to realize the opposite movement of the notch and the safety pin and the final locking by leaning and fixing, thereby eliminating the problem of the rotation of the safety pin.
The adjusting tool kit for preventing loosening of the special hexagonal groove type nut during the safety striking has the advantages that when the nut safety pin is free to rotate after being installed, the nut safety pin can be smoothly adjusted and eliminated from rotating by using a tool, the quality risk that the nut or the safety pin is easily scrapped due to the fact that a traditional mode has no proper tool operation and only pliers and a wrench are matched is avoided, the product quality is improved, and meanwhile, the operation efficiency is improved.
Drawings
FIG. 1 is a schematic view of a tool configuration;
FIG. 2 is a schematic view of the structure of the adjusting sleeve;
FIG. 3 is a schematic view of a hex channel nut;
FIG. 4 is a schematic view of the cotter pin before and after it is loosened;
FIG. 5 is a schematic view of the working principle;
FIG. 6 is a schematic view of the tool in an operating state;
in the figure: 1, a ratchet wrench; 2, adjusting the sleeve; 3 the shaped shear pin.
Detailed Description
The present invention is further illustrated by the following specific examples.
An adjusting tool kit for preventing looseness of a safety pin of a special hexagonal groove type nut comprises an adjusting sleeve 2 (kit) and a ratchet wrench 1 matched with the adjusting sleeve, and the attached drawing 1 is referred. The adjusting sleeve 2 (refer to the attached drawing 2) is of a hollow cylinder structure, the whole external shape is cylindrical, the internal shape is an inner hexagon, the cross section is of a hexagonal structure, and the specification size of the inner hexagon (the S value in the attached drawing 2 is the distance between two parallel sides of the hexagonal structure) corresponds to the specifications of nuts in different hexagonal groove shapes. The upper end of the adjusting sleeve 2 can be matched with a ratchet wrench (which can rotate forward and backward), and the matching size of the adjusting sleeve and the ratchet wrench is the same. Two symmetrical U-shaped notches are formed in the adjusting sleeve 2 according to the positions of the notches of the hexagonal groove-shaped nuts, the width dimension (W value in the attached drawing 2) of each U-shaped notch corresponds to the width dimension of the corresponding notch of the hexagonal groove-shaped nut, and the height H dimension of each U-shaped notch is required to ensure that the tool does not interfere with the highest point of the nut after safety is achieved when the tool is used.
In actual operation, the corresponding specification of the adjusting sleeve 2 is selected according to the nominal diameter of the hexagonal groove type nut and the specification of the safety pin, the adjusting sleeve 2 is placed on the nut which is subjected to safety and anti-loose, wherein the U-shaped notch of the adjusting sleeve 2 is placed on the part of the formed safety pin 3 in an aligned mode, the adjusting sleeve 2 can avoid the bent edge and the tail protruding part after the safety pin is formed in the state, the inner hexagonal structure part of the adjusting sleeve can be completely matched with the hexagonal groove type nut, at the moment, the ratchet wrench 1 (capable of rotating forwards and backwards) is used for being installed on the adjusting sleeve 2, the hexagonal groove type nut is rotated in the forward direction or the reverse direction according to actual conditions, the notch of the nut can move opposite to the formed safety pin 3 when the nut is rotated, fine adjustment is achieved, the notch of the nut can be attached (attached) to the safety pin, the safety pin cannot rotate or rotate around the axis of the safety pin which penetrates through the pin hole of the bolt after the attachment, the final inspection requirement after the safety pin is installed is met. The working principle diagram refers to fig. 4, 5 and 6.
The above-mentioned embodiments only express the embodiments of the present invention, but not should be understood as the limitation of the scope of the utility model patent, it should be noted that, for those skilled in the art, many variations and modifications can be made without departing from the concept of the present invention, and these all fall into the protection scope of the present invention.
Claims (1)
1. An adjusting tool kit for looseness prevention of a special hexagonal groove type nut safety pin is characterized by comprising an adjusting sleeve (2) and a ratchet wrench (1) matched with the adjusting sleeve;
the adjusting sleeve (2) is of a hollow cylindrical structure, the whole external shape is cylindrical, the internal shape is an inner hexagon, the cross section is of a hexagonal structure, and a specification ruler of the inner hexagon corresponds to specifications of nuts in different hexagonal groove shapes; the upper end of the adjusting sleeve (2) is matched with a ratchet wrench in shape, and the ratchet wrench can rotate in the forward direction or the reverse direction;
two symmetrical U-shaped notches are formed in the adjusting sleeve (2) according to the positions of the notches of the hexagonal groove-shaped nuts, the width size of each U-shaped notch corresponds to the width size of the corresponding notch in the hexagonal groove-shaped nut, the height H size of each U-shaped notch is required to ensure that the tool does not interfere with the highest point of the nut after safety striking when in use according to actual conditions, and the adjusting sleeve (2) can be completely matched with the hexagonal groove-shaped nut after safety striking;
the ratchet wrench (1) can correspond to adjusting sleeves of different specifications, fine adjustment of the adjusting sleeve (2) in the positive and negative directions is achieved through the ratchet wrench (1), and the notch and the safety pin move in opposite directions and are fixed and finally locked.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122745567.XU CN216180085U (en) | 2021-11-10 | 2021-11-10 | Anti-loosening adjusting tool kit for safety pin beating of special hexagonal groove type nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122745567.XU CN216180085U (en) | 2021-11-10 | 2021-11-10 | Anti-loosening adjusting tool kit for safety pin beating of special hexagonal groove type nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216180085U true CN216180085U (en) | 2022-04-05 |
Family
ID=80909219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122745567.XU Active CN216180085U (en) | 2021-11-10 | 2021-11-10 | Anti-loosening adjusting tool kit for safety pin beating of special hexagonal groove type nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216180085U (en) |
-
2021
- 2021-11-10 CN CN202122745567.XU patent/CN216180085U/en active Active
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