Novel locknut

Abstract

The utility model relates to the technical field of nuts, and provides a novel locknut which comprises a bolt cover and a locked object, a through hole is formed in the locked object, the bottom end of the bolt cover is fixedly connected with a left-hand threaded rod, the left-hand threaded rod penetrates through the through hole and is connected with a right-hand threaded rod, and the left-hand threaded rod is in threaded connection with a main nut. The top end of the main nut is tightly attached to a locked object, a positioning groove is formed in the outer wall of the main nut, the right-hand threaded rod is in threaded connection with an auxiliary nut, a sliding groove is formed in the auxiliary nut, a screw is rotationally connected into the sliding groove, one end of the screw penetrates through the sliding groove to be connected with a rotating block, and a threaded piece is in threaded connection with the screw. One end of the threaded part penetrates through the sliding groove to be connected with a connecting block, a connecting plate is rotationally connected to the connecting block, a positioning block matched with the positioning groove is arranged on the connecting plate, and a torsional spring is arranged between the connecting plate and the connecting block, so that the connecting plate can be finely adjusted, and the purpose of widening the application range of equipment is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of nuts, and in particular to a novel anti-loosening nut. Background Art

[0002] A nut is a nut that is screwed together with a bolt or a screw for fastening. It is a component that all manufacturing machinery must use. According to the different materials, it is divided into several major types, such as carbon steel, stainless steel, and non-ferrous metals such as copper. The nut is a part that tightly connects mechanical equipment. Nuts and bolts of the same specifications can be connected together through the inner thread. The anti-loosening nut is a type of nut.

[0003] After searching, China disclosed a new type of anti-loosening and anti-theft nut with patent publication number CN215409726U on January 4, 2022, which is roughly described as including a first thread segment and a second thread segment, the bottom of the first thread segment is fixedly connected to the top of the second thread segment, and the diameter of the first thread segment is greater than the diameter of the second thread segment. The new anti-loosening and anti-theft nut changes the direction of the thread by setting the left-handed thread and the right-handed thread on the bolt body, and cooperates with the setting of the first ring sleeve and the second ring sleeve. When the first ring sleeve is loose and the thread is slipped, the second ring sleeve can further limit the first ring sleeve to prevent the first ring sleeve from loosening and affecting the stability of the locked object. Through the setting of the connecting assembly, the connection between the first ring sleeve and the second ring sleeve is strengthened. When the first ring sleeve rotates and becomes loose, the connection assembly and the setting of the left-handed thread and the right-handed thread make the second ring sleeve tighten under the action of the rotation force of the first ring sleeve to prevent the first ring sleeve from loosening.

[0004] Although the above-mentioned prior art solution can prevent the first ring sleeve from loosening, when the device fixes different objects, the position of the first ring sleeve on the first threaded segment is different, so it cannot ensure that the through holes on the first connecting rod and the second connecting rod are aligned, resulting in a smaller scope of application of the device. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] In view of the deficiencies of the prior art, the utility model provides a novel anti-loosening nut to solve the problem that the application range of the device proposed in the background technology is small.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a new type of anti-loosening nut, including a bolt cover, including a locked object, a through hole is opened on the locked object, the bottom end of the bolt cover is fixedly connected with a left-handed threaded rod, the left-handed threaded rod passes through the through hole and is connected with a right-handed threaded rod, the left-handed threaded rod is threadedly connected with a main nut, the top of the main nut is tightly against the locked object, a positioning groove is opened on the outer wall of the main nut, the right-handed threaded rod is threadedly connected with an auxiliary nut, the auxiliary nut is opened with a sliding groove, the inside of the sliding groove is rotatably connected with a screw, one end of the screw passes through the sliding groove and is connected to a rotating block, the screw is threadedly connected with a threaded member, one end of the threaded member passes through the sliding groove and is connected to a connecting block, the connecting block is rotatably connected with a connecting plate, a positioning block matching the positioning groove is provided on the connecting plate, and a torsion spring is provided between the connecting plate and the connecting block.

[0009] By adopting the above technical scheme, the right-handed threaded rod and the left-handed threaded rod are passed through the through hole, the main nut is rotated to be threadedly connected with the left-handed threaded rod, so that the main nut cooperates with the bolt cover to lock the locked object, and the auxiliary nut is rotated to be threadedly connected with the right-handed threaded rod. After the auxiliary nut reaches the specified position, the position of the positioning block coincides with the position of the positioning groove, and the torsion spring drives the connecting plate and the positioning block to rotate, so that the positioning block is engaged with the positioning groove, thereby connecting the main nut and the auxiliary nut. At this time, due to the different thread directions of the left-handed threaded rod and the right-handed threaded rod, the main nut and the auxiliary nut cannot be rotated, thereby achieving the purpose of preventing the main nut from loosening. If the position of the main nut is different due to the different thickness of the locked object, the position of the positioning block and the positioning groove cannot coincide, the rotating block is rotated to drive the screw to rotate, thereby driving the threaded member to move, and the threaded member drives the connecting block, the connecting plate and the positioning block to move, thereby fine-tuning the position of the positioning block, thereby making the positioning block coincide with the positioning groove, thereby achieving the purpose of increasing the scope of application of the equipment.

[0010] Optionally, a card slot is provided on the inner side wall of the positioning slot, and an installation slot is provided on the positioning block. A card block matching the card slot is slidably connected inside the installation slot, one end of the card block is fixedly connected to a spring, and one end of the spring is connected to the inner side wall of the installation slot.

[0011] By adopting the above technical solution, when the positioning block is engaged with the positioning slot, the block compresses the spring to contract, so that the block is retracted into the installation slot. When the block coincides with the slot, the spring pushes the block to move, so that the block is engaged with the slot, thereby preventing the positioning block from being separated from the positioning slot, thereby achieving the purpose of improving the stability of the equipment.

[0012] Optionally, a cross groove is provided on the rotating block.

[0013] By adopting the above technical solution, the cross slot is used to facilitate personnel to rotate the rotating block with a screwdriver, thereby achieving the purpose of labor saving.

[0014] Optionally, two matching force-saving plates are fixedly connected to the outer wall of the auxiliary nut.

[0015] By adopting the above technical solution, the labor-saving plate is used to facilitate personnel to rotate the auxiliary nut by hand, thereby improving the accuracy of personnel's rotation of the auxiliary nut and making it easier to find the appropriate position of the auxiliary nut, thereby achieving the purpose of improving work efficiency.

[0016] Optionally, a sealing gasket is provided at the bottom end of the bolt cover, and the bottom end of the sealing gasket is in close contact with the locked object.

[0017] By adopting the above technical solution, the sealing gasket is used to increase the friction between the bolt cover and the locked object, while reducing the probability of water vapor entering the through hole, thereby reducing the probability of equipment corrosion.

[0018] (III) Beneficial effects

[0019] In summary, the present invention includes at least one of the following beneficial technical effects:

[0020] 1. The new anti-loosening nut passes the right-handed threaded rod and the left-handed threaded rod through the through hole, rotates the main nut and the left-handed threaded rod to thread the main nut, so that the main nut cooperates with the bolt cover to lock the locked object, rotates the auxiliary nut and the right-handed threaded rod to thread the auxiliary nut, so that after the auxiliary nut reaches the specified position, the position of the positioning block coincides with the position of the positioning groove, and the torsion spring drives the connecting plate and the positioning block to rotate, so that the positioning block is engaged with the positioning groove, so as to connect the main nut and the auxiliary nut. At this time, due to the different thread directions of the left-handed threaded rod and the right-handed threaded rod, the main nut and the auxiliary nut cannot be rotated, so as to achieve the purpose of preventing the main nut from loosening. If the position of the main nut is different due to the different thickness of the locked object, the position of the positioning block and the positioning groove cannot coincide, the rotating block is rotated to drive the screw to rotate, thereby driving the threaded member to move, and the threaded member drives the connecting block, the connecting plate and the positioning block to move, so as to fine-tune the position of the positioning block, so as to make the positioning block coincide with the positioning groove, so as to achieve the purpose of improving the application range of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a first side structural schematic diagram of the utility model;

[0022] Figure 2 This is a first cross-sectional structural schematic diagram of the utility model;

[0023] Figure 3 For this utility model Figure 2 A schematic diagram of the local enlarged structure at point A in the middle;

[0024] Figure 4 For this utility model Figure 2 Schematic diagram of the local enlarged structure at point B in the middle.

[0025] In the figure: 1. bolt cover; 2. locked object; 3. left-handed threaded rod; 4. right-handed threaded rod; 5. main nut; 6. auxiliary nut; 7. screw; 8. rotating block; 9. threaded part; 10. connecting block; 11. connecting plate; 12. positioning block; 13. torsion spring; 14. clamping block; 15. spring; 16. cross slot; 17. labor-saving plate; 18. sealing gasket. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in 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. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0028] Reference Figure 1-Figure 4A novel anti-loosening nut comprises a bolt cover 1, a locked object 2, a through hole is provided on the locked object 2, a left-handed threaded rod 3 is fixedly connected to the bottom end of the bolt cover 1, a right-handed threaded rod 4 is connected to the left-handed threaded rod 3 through the through hole, a main nut 5 is threadedly connected to the left-handed threaded rod 3, the top of the main nut 5 is tightly against the locked object 2, a positioning groove is provided on the outer wall of the main nut 5, an auxiliary nut 6 is threadedly connected to the right-handed threaded rod 4, a sliding groove is provided on the auxiliary nut 6, and the internal rotation connection of the sliding groove A screw rod 7 is connected, one end of the screw rod 7 passes through the sliding groove and is connected to a rotating block 8, a threaded member 9 is threadedly connected to the screw rod 7, one end of the threaded member 9 passes through the sliding groove and is connected to a connecting block 10, a connecting plate 11 is rotatably connected to the connecting block 10, a positioning block 12 matching the positioning groove is provided on the connecting plate 11, a torsion spring 13 is provided between the connecting plate 11 and the connecting block 10, the right-handed threaded rod 4 and the left-handed threaded rod 3 are passed through the through hole, and the main nut 5 is rotated to be threadedly connected to the left-handed threaded rod 3, so that the main nut 5 cooperates with the bolt cover 1 to lock the locked object 2, and rotates the auxiliary nut 6 to threadably connect it with the right-handed threaded rod 4. After the auxiliary nut 6 reaches the specified position, the positioning block 12 coincides with the position of the positioning groove, and the torsion spring 13 drives the connecting plate 11 and the positioning block 12 to rotate, so that the positioning block 12 is engaged with the positioning groove, thereby connecting the main nut 5 and the auxiliary nut 6. At this time, due to the different thread directions of the left-handed threaded rod 3 and the right-handed threaded rod 4, the main nut 5 and the auxiliary nut 6 cannot be rotated, thereby achieving the purpose of preventing the main nut 5 from loosening. If the position of the main nut 5 is different due to the different thicknesses of the locked object 2, the position of the positioning block 12 cannot coincide with the position of the positioning groove, and the rotating block 8 is rotated to drive the screw rod 7 to rotate, thereby driving the threaded member 9 to move, and the threaded member 9 drives the connecting block 10, the connecting plate 11 and the positioning block 12 to move, thereby fine-tuning the position of the positioning block 12, thereby making the positioning block 12 coincide with the positioning groove, thereby achieving the purpose of improving the application range of the equipment.

[0029] Reference Figure 2 and Figure 4 A card slot is provided on the inner side wall of the positioning groove, and a mounting groove is provided on the positioning block 12. A card block 14 matching the card slot is slidably connected inside the mounting groove. One end of the card block 14 is fixedly connected to a spring 15, and one end of the spring 15 is connected to the inner side wall of the mounting groove. When the positioning block 12 is engaged with the positioning groove, the card block 14 compresses the spring 15 to contract, so that the card block 14 retracts into the mounting groove. When the card block 14 coincides with the card slot, the spring 15 pushes the card block 14 to move, so that the card block 14 is engaged with the card slot, thereby preventing the positioning block 12 from being separated from the positioning groove, thereby achieving the purpose of improving the stability of the equipment.

[0030] Reference Figure 1-Figure 3 A cross slot 16 is provided on the rotating block 8, and the cross slot 16 is used to facilitate personnel to rotate the rotating block 8 with a screwdriver, thereby achieving the purpose of labor saving.

[0031] Reference Figure 1 Two matching labor-saving plates 17 are fixedly connected to the outer wall of the auxiliary nut 6. The labor-saving plates 17 are used to facilitate personnel to rotate the auxiliary nut 6 by hand, thereby improving the accuracy of personnel's rotation of the auxiliary nut 6 and making it easier to find a suitable position for the auxiliary nut 6, thereby achieving the purpose of improving work efficiency.

[0032] Reference Figure 2 A sealing gasket 18 is provided at the bottom end of the bolt cover 1, and the bottom end of the sealing gasket 18 is in close contact with the locked object 2. The sealing gasket 18 is used to increase the friction between the bolt cover 1 and the locked object 2, while reducing the probability of water vapor entering the through hole, thereby reducing the probability of equipment corrosion.

[0033] The bolt 5 is screwed to the bolt cover 1 and the bolt 6 is screwed to the bolt cover 1. The bolt 5 is screwed to the bolt cover 1 and the bolt 6 is screwed to the bolt cover 1. The bolt 5 is screwed to the bolt cover 1 and the bolt 6 is screwed to the bolt cover 1. The bolt 5 is screwed to the bolt cover 1 and the bolt 6 is screwed to the bolt cover 1. The connecting plate 11 and the positioning block 12 are moved to fine-tune the position of the positioning block 12, so that the positioning block 12 coincides with the positioning groove, so as to achieve the purpose of improving the application range of the equipment. When the positioning block 12 is engaged with the positioning groove, the clamping block 14 compresses the spring 15 to contract, so that the clamping block 14 retracts into the installation groove. When the clamping block 14 coincides with the clamping groove, the spring 15 pushes the clamping block 14 to move, so that the clamping block 14 is engaged with the clamping groove, so as to avoid the positioning block 12 from being separated from the positioning groove, so as to achieve the purpose of improving the stability of the equipment. The cross groove 16 is used to facilitate personnel to rotate the rotating block 8 with a screwdriver, so as to achieve the purpose of saving effort. The labor-saving plate 17 is used to facilitate personnel to rotate the auxiliary nut 6 by hand, so as to improve the accuracy of the rotation of the auxiliary nut 6 by personnel, and it is easier to find the appropriate position of the auxiliary nut 6, so as to achieve the purpose of improving work efficiency. The sealing gasket 18 is used to increase the friction between the bolt cover 1 and the locked object 2, and at the same time reduce the probability of water vapor entering the through hole, so as to reduce the probability of equipment corrosion.

[0034] The above-mentioned embodiments only express the specific implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. A novel anti-loosening nut, comprising a bolt cover (1), characterized in that: The invention comprises a locked object (2), wherein the locked object (2) is provided with a through hole, the bottom end of the bolt cover (1) is fixedly connected with a left-handed threaded rod (3), the left-handed threaded rod (3) passes through the through hole and is connected with a right-handed threaded rod (4), the left-handed threaded rod (3) is threadedly connected with a main nut (5), the top end of the main nut (5) is tightly attached to the locked object (2), the outer wall of the main nut (5) is provided with a positioning groove, the right-handed threaded rod (4) is threadedly connected with an auxiliary nut (6), and the auxiliary nut (6) is provided with a positioning groove. A sliding groove is provided, wherein a screw rod (7) is rotatably connected inside the sliding groove, one end of the screw rod (7) passes through the sliding groove and is connected to a rotating block (8), a threaded member (9) is threadedly connected to the screw rod (7), one end of the threaded member (9) passes through the sliding groove and is connected to a connecting block (10), a connecting plate (11) is rotatably connected to the connecting block (10), a positioning block (12) matched with the positioning groove is provided on the connecting plate (11), and a torsion spring (13) is provided between the connecting plate (11) and the connecting block (10).

2. A novel anti-loosening nut according to claim 1, characterized in that: A clamping groove is provided on the inner side wall of the positioning groove, and a mounting groove is provided on the positioning block (12). A clamping block (14) matching with the clamping groove is slidably connected inside the mounting groove, and one end of the clamping block (14) is fixedly connected to a spring (15), and one end of the spring (15) is connected to the inner side wall of the mounting groove.

3. A novel anti-loosening nut according to claim 1, characterized in that: The rotating block (8) is provided with a cross groove (16).

4. A novel anti-loosening nut according to claim 1, characterized in that: Two matching labor-saving plates (17) are fixedly connected to the outer wall of the auxiliary nut (6).

5. A novel anti-loosening nut according to claim 1, characterized in that: A sealing gasket (18) is provided at the bottom end of the bolt cover (1), and the bottom end of the sealing gasket (18) is in close contact with the locked object (2).

Images