High-strength corrosion-resistant supporting plate self-locking nut

Abstract

The utility model discloses a high-strength corrosion-resistant supporting plate self-locking nut, and relates to the technical field of self-locking nuts, the high-strength corrosion-resistant supporting plate self-locking nut comprises a limiting fixing sleeve, the bottom end of one side of the limiting fixing sleeve is fixedly connected with an auxiliary expansion disc, a limiting connecting groove is formed in the auxiliary expansion disc, a connecting screw rod is detachably installed in the limiting fixing sleeve, and the limiting fixing sleeve is fixedly connected with the limiting connecting groove. And the top end of one side of the connecting screw rod is fixedly connected with a nut disc. A connecting screw rod is installed in a limiting fixing sleeve, the surface of the connecting screw rod is locked through an auxiliary expansion disc, a buckle limiting disc extends into a limiting connecting groove for locking, the angle of a horizontal connecting plate is adjusted through rotation of a rotating shaft, and then the angle of a vertical connecting plate is rotated through an adjusting shaft; and finally, the angle is adjusted, the edge of the top end of the limiting fixing sleeve is locked through the buckling claws, and the buckling claws at multiple positions can improve the locking stability between the limiting fixing sleeve and the nut disc.

Description

Technical Field

[0001] The utility model relates to the technical field of self-locking nuts, in particular to a high-strength corrosion-resistant tab washer self-locking nut. Background Art

[0002] Self-locking nuts have functions such as anti-loosening and anti-vibration, and are indispensable fasteners in production. As a typical self-locking nut, tab washer self-locking nuts are mainly used in the connection of structural parts in the fields of aerospace and civil commerce. According to the connection position and form, they mainly include single-ear tab washer self-locking nuts, double-ear tab washer self-locking nuts and angle tab washer self-locking nuts. In the prior art, tab washer self-locking nuts are all made of all metal, with complex processing technology, high production cost, large weight, poor corrosion resistance, high maintenance requirements in actual application, and easy to fail and malfunction in extreme environments. And when connecting with composite materials, it is easy to loosen or fall off, posing a great safety hazard. As a result, the existing tab washer self-locking nuts can no longer meet the fastening connection requirements of composite materials and other non-metal material structural parts, so we design a high-strength corrosion-resistant tab washer self-locking nut. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a high-strength corrosion-resistant tab washer self-locking nut.

[0004] To solve the above technical problems, the utility model provides the following technical solutions: a high-strength corrosion-resistant tab washer self-locking nut, including a limit fixing sleeve, one side bottom end of the limit fixing sleeve is fixedly connected with an auxiliary expansion disk, a limit connection groove is opened inside the auxiliary expansion disk, a connection screw rod is detachably installed inside the limit fixing sleeve, one side top end of the connection screw rod is fixedly connected with a nut disk, a snap limit disk is fixedly connected to the surface of the connection screw rod close to the nut disk, a movable groove is opened on the top surface of the nut disk, and a rotating shaft is rotatably connected inside the movable groove.

[0005] Preferably, the number of the auxiliary expansion disks is several, and several of the auxiliary expansion disks are distributed in a circumferential manner on the bottom surface of the limit fixing sleeve. The connection relationship between the limit fixing sleeve and the connection screw rod is a threaded connection, and the connection relationship between the snap limit disk and the limit connection groove is a movable clamping connection.

[0006] Preferably, one side of the rotating shaft is fixedly connected with a horizontal connecting plate, one side top end of the horizontal connecting plate is rotatably connected with an adjusting shaft, one side top end surface of the adjusting shaft is fixedly connected with a vertical connecting plate, and a snap claw is fixedly connected to one side of the vertical connecting plate.

[0007] Preferably, the number of the movable slots is several, and the several movable slots are circumferentially distributed on the top surface of the nut plate. The vertical connecting plates correspond to the positions of the movable slots one by one, and the connection relationship between the buckle claws and the limit fixing sleeves is movable clamping.

[0008] Preferably, a locking slot is formed on the bottom surface of one side of the auxiliary expansion plate. A connecting bottom shaft is rotatably connected to the bottom end of one side of the locking slot, and a movable locking claw is fixedly connected to one side surface of the connecting bottom shaft.

[0009] Preferably, a vertical sliding rail is fixedly connected to the bottom surface of the inner part of the locking slot. A vertical sliding disk is movably installed on one side surface of the vertical sliding rail, and a reset connecting spring is fixedly connected between the movable locking claw and the vertical sliding disk.

[0010] Preferably, the number of the locking slots is several, and the several locking slots are circumferentially distributed on the bottom surface of the auxiliary expansion plate. The vertical sliding rails correspond to the positions of the locking slots one by one, and the connection relationship between the vertical sliding rails and the vertical sliding disks is sliding connection.

[0011] Preferably, the cross-sectional area of the locking slot is larger than the cross-sectional area of the movable locking claw, and the connection relationship between the movable locking claw and the auxiliary expansion plate is rotational connection.

[0012] Compared with the related art, the high-strength corrosion-resistant pallet self-locking nut provided by the present invention has the following beneficial effects:

[0013] 1. The high-strength corrosion-resistant pallet self-locking nut provided by the present invention is provided. The connecting screw is installed inside the limit fixing sleeve. The surface of the connecting screw is locked by the auxiliary expansion plate. The buckle limit disk extends into the limit connection slot for locking. Then, the angle of the horizontal connecting plate is adjusted by the rotation of the rotating shaft. Then, the angle of the vertical connecting plate is rotated by the adjusting shaft. Finally, the angle is adjusted to lock the top edge of the limit fixing sleeve by the buckle claws. The buckle claws at multiple positions can improve the locking stability between the limit fixing sleeve and the nut plate.

[0014] 2. The high-strength corrosion-resistant pallet self-locking nut provided by the present invention is provided. By setting the rotation of the connecting bottom shaft inside the locking slot, the angle of the movable locking claw is adjusted. Before the installation of the connecting screw, the movable locking claw is retracted into the locking slot. When the connecting screw is installed inside the limit fixing sleeve, the movable locking claw will directly open due to the elastic potential energy of the reset connecting spring. At this time, the vertical sliding disk slides on the vertical sliding rail to avoid affecting the stretching of the reset connecting spring. The bottom side of the auxiliary expansion plate is buckled and locked by the movable locking claw, further increasing the installation stability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional structure schematic diagram of the present utility model;

[0016] Figure 2 is a schematic structural diagram of the connecting screw of the present utility model;

[0017] Figure 3 is a schematic top view structure diagram of the top end of the nut plate of the present utility model;

[0018] Figure 4 is the present utility model Figure 2 amplified structure schematic diagram at position A.

[0019] Reference numerals in the figure: 1, limit fixing sleeve; 2, auxiliary expansion plate; 3, limit connection groove; 4, connecting screw; 5, nut plate; 6, buckle limit plate; 7, movable groove; 8, rotating shaft; 9, horizontal connecting plate; 10, adjusting shaft; 11, vertical connecting plate; 12, buckle claw; 13, locking groove; 14, connecting bottom shaft; 15, movable locking claw; 16, vertical slide rail; 17, vertical sliding plate; 18, reset connecting spring. Specific embodiments

[0020] Embodiment 1:

[0021] Please refer to Figures 1-4 , the present utility model provides a technical solution: a high-strength corrosion-resistant pallet self-locking nut, including a limit fixing sleeve 1, the bottom end of one side of the limit fixing sleeve 1 is fixedly connected with an auxiliary expansion plate 2, a limit connection groove 3 is opened inside the auxiliary expansion plate 2, a connecting screw 4 is detachably installed inside the limit fixing sleeve 1, the top end of one side of the connecting screw 4 is fixedly connected with a nut plate 5, the surface of one side of the connecting screw 4 close to the nut plate 5 is fixedly connected with a buckle limit plate 6, a movable groove 7 is opened on the top surface of the nut plate 5, a rotating shaft 8 is rotatably connected inside the movable groove 7, the number of the auxiliary expansion plates 2 is several, and several auxiliary expansion plates 2 are distributed in a circumferential manner on the bottom surface of the limit fixing sleeve 1, the connection relationship between the limit fixing sleeve 1 and the connecting screw 4 is a threaded connection, the connection relationship between the buckle limit plate 6 and the limit connection groove 3 is a movable clamping connection, one side of the rotating shaft 8 is fixedly connected with a horizontal connecting plate 9, the top end of one side of the horizontal connecting plate 9 is rotatably connected with an adjusting shaft 10, the top surface of one side of the adjusting shaft 10 is fixedly connected with a vertical connecting plate 11, one side of the vertical connecting plate 11 is fixedly connected with a buckle claw 12, the number of the movable grooves 7 is several, and several movable grooves 7 are distributed in a circumferential manner on the top surface of the nut plate 5, the positions of the vertical connecting plate 11 and the movable grooves 7 correspond one by one, and the connection relationship between the buckle claw 12 and the limit fixing sleeve 1 is a movable clamping connection.

[0022] In an embodiment, the connecting screw 4 is installed inside the limit fixing sleeve 1. The surface of the connecting screw 4 is locked by the auxiliary expansion disc 2. The buckle limit disc 6 extends into the limit connecting groove 3 for locking. Then, the angle of the horizontal connecting plate 9 is adjusted by rotating the rotating shaft 8. Next, the angle of the vertical connecting plate 11 is rotated by the adjusting shaft 10. Finally, the angle is adjusted to lock the top edge of the limit fixing sleeve 1 by the buckle claws 12. The buckle claws 12 at multiple positions can improve the locking stability between the limit fixing sleeve 1 and the nut plate 5.

[0023] Embodiment 2:

[0024] Please refer to Figures 1-4 , the present utility model provides a technical solution: a high-strength corrosion-resistant pallet self-locking nut, including a locking groove 13 is provided on the bottom surface of one side of the auxiliary expansion disc 2. A connecting bottom shaft 14 is rotatably connected to the bottom end of one side of the locking groove 13. A movable locking claw 15 is fixedly connected to the surface of one side of the connecting bottom shaft 14. A vertical slide rail 16 is fixedly connected to the bottom surface inside the locking groove 13. A vertical sliding disc 17 is movably installed on the surface of one side of the vertical slide rail 16. A reset connecting spring 18 is fixedly connected between the movable locking claw 15 and the vertical sliding disc 17. The number of the locking grooves 13 is several, and several locking grooves 13 are circumferentially distributed on the bottom surface of the auxiliary expansion disc 2. The positions of the vertical slide rail 16 and the locking groove 13 correspond one by one. The connection relationship between the vertical slide rail 16 and the vertical sliding disc 17 is a sliding connection. The cross-sectional area of the locking groove 13 is larger than the cross-sectional area of the movable locking claw 15. The connection relationship between the movable locking claw 15 and the auxiliary expansion disc 2 is a rotational connection.

[0025] In an embodiment, by setting the rotation of the connecting bottom shaft 14 inside the locking groove 13, the angle of the movable locking claw 15 is adjusted. Before the installation of the connecting screw 4, the movable locking claw 15 is received inside the locking groove 13. When the connecting screw 4 is installed inside the limit fixing sleeve 1, the movable locking claw 15 will directly open due to the elastic potential energy of the reset connecting spring 18. At this time, the vertical sliding disc 17 slides on the vertical slide rail 16 to avoid affecting the stretching of the reset connecting spring 18. The bottom side of the auxiliary expansion disc 2 is buckled and locked by the movable locking claw 15, further increasing the installation stability of the device.

[0026] Working principle:

[0027] The connecting screw 4 is installed inside the limit fixing sleeve 1. The surface of the connecting screw 4 is locked by the auxiliary expansion disc 2. The buckle limit disc 6 extends into the limit connection groove 3 for locking. Then, the angle of the horizontal connecting plate 9 is adjusted by the rotation of the rotating shaft 8. Next, the angle of the vertical connecting plate 11 is adjusted by rotating the adjusting shaft 10. Finally, the locking operation is performed on the top edge of the limit fixing sleeve 1 by the buckle claws 12. The buckle claws 12 at multiple positions can improve the locking stability between the limit fixing sleeve 1 and the nut disc 5;

[0028] By setting the rotation of the connecting bottom shaft 14 inside the locking groove 13, the angle of the movable locking claw 15 is adjusted. Before the installation of the connecting screw 4, the movable locking claw 15 is received inside the locking groove 13. When the connecting screw 4 is installed inside the limit fixing sleeve 1, the movable locking claw 15 will directly open due to the elastic potential energy of the reset connecting spring 18. At this time, the vertical sliding disc 17 slides at its position on the vertical slide rail 16 to avoid affecting the stretching of the reset connecting spring 18. The bottom side of the auxiliary expansion disc 2 is buckled and locked by the movable locking claw 15, further increasing the installation stability of the device.

Claims

1. A high-strength corrosion-resistant pallet self-locking nut, comprising a limit fixing sleeve (1), and an auxiliary expansion disc (2) is fixedly connected to the bottom end of one side of the limit fixing sleeve (1), and is characterized in that: A limiting connection groove (3) is formed inside the auxiliary expansion disk (2). A connection screw rod (4) is detachably installed inside the limiting fixing sleeve (1). One side top end of the connection screw rod (4) is fixedly connected with a nut disk (5). One side surface of the connection screw rod (4) close to the nut disk (5) is fixedly connected with a buckle limiting disk (6). An activity groove (7) is formed on the top surface of the nut disk (5). A rotating shaft (8) is rotatably connected inside the activity groove (7).

2. The high-strength corrosion-resistant pallet self-locking nut according to claim 1, characterized in that, The number of the auxiliary expansion disks (2) is several. Several of the auxiliary expansion disks (2) are distributed in a circular pattern on the bottom surface of the limiting fixing sleeve (1). The connection relationship between the limiting fixing sleeve (1) and the connection screw rod (4) is a threaded connection. The connection relationship between the buckle limiting disk (6) and the limiting connection groove (3) is an activity clamping connection.

3. The high-strength corrosion-resistant pallet self-locking nut according to claim 1, characterized in that, One side of the rotating shaft (8) is fixedly connected with a horizontal connection plate (9). One side top end of the horizontal connection plate (9) is rotatably connected with an adjusting shaft (10). One side top surface of the adjusting shaft (10) is fixedly connected with a vertical connection plate (11). One side of the vertical connection plate (11) is fixedly connected with a buckle claw (12).

4. The high-strength corrosion-resistant pallet self-locking nut according to claim 3, characterized in that, The number of the activity grooves (7) is several. Several of the activity grooves (7) are distributed in a circular pattern on the top surface of the nut disk (5). The positions of the vertical connection plate (11) and the activity grooves (7) correspond one by one. The connection relationship between the buckle claw (12) and the limiting fixing sleeve (1) is an activity clamping connection.

5. A high-strength corrosion-resistant pallet self-locking nut according to claim 1, characterized in that, One side bottom surface of the auxiliary expansion disk (2) is formed with a locking groove (13). One side bottom end of the locking groove (13) is rotatably connected with a connection bottom shaft (14). One side surface of the connection bottom shaft (14) is fixedly connected with an activity locking claw (15).

6. A high-strength corrosion-resistant pallet self-locking nut according to claim 5, characterized in that, A vertical sliding rail (16) is fixedly connected to the bottom surface inside the locking groove (13). A vertical sliding disk (17) is movably installed on one side surface of the vertical sliding rail (16). A reset connection spring (18) is fixedly connected between the activity locking claw (15) and the vertical sliding disk (17).

7. A high-strength corrosion-resistant pallet self-locking nut according to claim 6, characterized in that, The number of the locking grooves (13) is several. Several of the locking grooves (13) are distributed in a circular pattern on the bottom surface of the auxiliary expansion disk (2). The positions of the vertical sliding rail (16) and the locking grooves (13) correspond one by one. The connection relationship between the vertical sliding rail (16) and the vertical sliding disk (17) is a sliding connection.

8. The high-strength corrosion-resistant pallet self-locking nut according to claim 6, characterized in that, The cross-sectional area of the locking groove (13) is larger than the cross-sectional area of the activity locking claw (15). The connection relationship between the activity locking claw (15) and the auxiliary expansion disk (2) is a rotational connection.

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