Fastening type self-locking nut structure

Abstract

The utility model discloses a fastening type self-locking nut structure, it includes: a plurality of clamping groove even distribution on the upper end surface of nut body with the center of nut body as the axle, the cross section shape of clamping groove is T type, and the T type vertical section tail end of clamping groove is towards the axle of nut body and is communicated with the thread surface of nut body, a plurality of extrusion piece one is placed in the clamping groove, and extrusion piece one is corresponding with clamping groove, and the cross section shape of extrusion piece one is T type, and the T type direction of extrusion piece one is consistent with the T type direction of clamping groove, and extrusion piece one is connected with nut body through clamping groove, a plurality of extrusion piece two are corresponding with extrusion piece one, and the cross section shape of extrusion piece two is triangle type, and the tip of extrusion piece two is placed between clamping groove and extrusion piece one after passing the upper end surface of nut body, and extrusion piece two is perpendicular to the central ray of nut body, and extrusion piece two is connected with nut body through the cooperation of clamping groove and extrusion piece one. The utility model has the beneficial effect of not easy to loosen.

Description

Technical Field

[0001] This utility model relates to the technical field of nuts, and in particular to a fastening self-locking nut structure. Background Technology

[0002] After a nut is tightened, it may loosen over time due to vibration or other reasons, which can cause some parts to be unstable and, in severe cases, lead to accidents. Utility Model Content

[0003] The present invention aims to overcome the shortcomings of existing technologies that are prone to loosening, and provides a fastening self-locking nut structure that is not easily loosened.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A fastening self-locking nut structure, comprising:

[0006] The nut body is the main body of the self-locking nut;

[0007] Several slots are evenly distributed on the upper surface of the nut body with the center of the nut body as the axis. The cross-sectional shape of the slot is T-shaped, and the tail end of the vertical section of the T-shaped slot faces the axis of the nut body and is connected to the threaded surface of the nut body.

[0008] Several compression blocks are placed in the slots, with each compression block corresponding to a slot. The cross-sectional shape of each compression block is T-shaped, and the T-shaped placement direction of each compression block is consistent with the T-shaped direction of the slot. Each compression block is engaged with the nut body through the slot.

[0009] Several extrusion blocks II correspond one-to-one with extrusion blocks I. The cross-sectional shape of extrusion blocks II is triangular. The tip of extrusion block II passes through the upper end face of the nut body and is placed between the slot and extrusion block I. Extrusion blocks II are perpendicular to the central ray of the nut body. Extrusion blocks II are engaged with the nut body through the cooperation of the slot and extrusion blocks I.

[0010] When using, insert the second pressing block into the space between the first pressing block and the slot, ensuring that the inner side of the first pressing block does not exceed the outer diameter of the thread of the nut body. Then, screw the side with the slot inward. As the nut body is screwed back, the bottom surface pushes the second pressing block into the slot. The second pressing block presses the first pressing block towards the center of the nut body. The first pressing block can lock the thread of the screw, preventing the nut body from rotating freely and achieving the purpose of not being easy to loosen.

[0011] Preferably, the upper surface of the nut body is provided with limiting strips, two limiting strips forming a set corresponding one-to-one with the slots. The two limiting strips are respectively placed on both ends of the T-shaped horizontal section of the compression block one. The limiting strips are fixedly connected to the nut body, and the compression block one is engaged with the nut body through the cooperation of the two limiting strips and the slots. The limiting strips can seal the compression block in the slots and prevent it from falling out.

[0012] Preferably, the length of the T-shaped vertical section of the compression block is longer than the length of the T-shaped vertical section of the slot. The compression block ensures that the T-shaped vertical section can enter the through hole of the nut body.

[0013] Preferably, the total length of the T-shaped extrusion block one is shorter than the total length of the T-shaped slot. There is space between the extrusion block one and the slot for the extrusion block two to enter.

[0014] Preferably, the inner surface of the compression block is provided with a plurality of retaining teeth, which are evenly distributed on the side of the compression block facing the center of the nut body. The retaining teeth are fixedly connected to the compression block and run in a front-to-back direction. The retaining teeth can increase the stability of the threads on the screw fixing the compression block.

[0015] Preferably, the second extrusion block is provided with a retaining groove, the cross-sectional shape of which is T-shaped. The retaining groove can be used to snap the second extrusion block out if it is not positioned correctly.

[0016] The beneficial effects of this utility model are: it is not easy to loosen; the limiting strip can seal the extrusion block in the slot and prevent it from falling out; the first extrusion block can ensure that the T-shaped vertical section can enter the through hole of the nut body; there is space for the second extrusion block to enter between the first extrusion block and the slot; the toothed strip can increase the stability of the screw thread on the screw fixing the first extrusion block; the retaining groove can remove the second extrusion block if it is not placed in the correct position. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 yes Figure 1 A magnified view of detail A;

[0019] Figure 3 This is a cross-sectional view of the main view of this utility model;

[0020] Figure 4 yes Figure 3 A magnified view of detail B;

[0021] In the diagram: 1. Nut body, 2. Pressing block one, 3. Slot, 4. Pressing block two, 5. Limiting strip, 6. Gear rack, 7. Snap groove. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0023] like Figures 1 to 3 In one embodiment, a fastening self-locking nut structure includes: a plurality of slots 3 evenly distributed on the upper surface of the nut body 1 with the center of the nut body 1 as the axis; the slots 3 have a T-shaped cross-section, with the tail end of the vertical section of the T-shape facing the axis of the nut body 1 and communicating with the threaded surface of the nut body 1; a plurality of pressing blocks 2 placed in the slots 3, each pressing block 2 corresponding to one of the slots 3; the pressing blocks 2 have a T-shaped cross-section, with the T-shaped placement direction of the pressing blocks 2 consistent with the T-shaped direction of the slots 3; the pressing blocks 2 are engaged with the nut body 1 through the slots 3; and a plurality of pressing blocks 4 corresponding to each of the pressing blocks 2, each pressing block 4 having a triangular cross-section; the tip of the pressing blocks 4 passes through the upper surface of the nut body 1 and is placed between the slots 3 and the pressing blocks 2; the pressing blocks 4 are perpendicular to the central ray of the nut body 1; and the pressing blocks 2 4 are engaged with the nut body 1 through the cooperation of the slots 3 and the pressing blocks 2.

[0024] like Figures 1 to 4 As shown, the two limiting strips 5 are a set and correspond one-to-one with the slots 3. The two limiting strips 5 are respectively placed on both ends of the T-shaped horizontal section of the extrusion block 2. The limiting strips 5 are fixedly connected to the nut body 1. The extrusion block 2 is engaged with the nut body 1 through the cooperation of the two limiting strips 5 and the slots 3.

[0025] like Figure 1 , Figure 2 and Figure 4 As shown, the length of the 2T-shaped vertical section of the extrusion block is longer than the length of the 3T-shaped vertical section of the slot.

[0026] like Figure 1 , Figure 2 and Figure 4 As shown, the total length of the 2T-type extrusion block is shorter than the total length of the 3T-type slot.

[0027] like Figures 1 to 4 As shown, several toothed racks 6 are evenly distributed on the side of the compression block 2 facing the center of the nut body 1. The toothed racks 6 are fixedly connected to the compression block 2 and the toothed racks 6 run in a front-back direction.

[0028] like Figure 1 and Figure 4 As shown, the extrusion block 4 is provided with a retaining groove 7, and the cross-sectional shape of the retaining groove 7 is T-shaped.

[0029] In use, insert the second compression block 4 between the first compression block 2 and the slot 3. The width of the second compression block 4 is less than the distance between the two limit strips 5, and ensure that the inner side of the first compression block 2 does not exceed the outer diameter of the thread of the nut body 1. Then screw the side with the slot 3 inward. As the nut body 1 is screwed to the back, let the bottom surface push the second compression block 4 into the slot 3. The second compression block 4 presses the first compression block 2 towards the center of the nut body 1. The toothed strip 6 on the first compression block 2 can lock the thread of the screw, so that the nut body 1 will not rotate at will. The retaining groove 7 will be in a suitable position on the second compression block 4 according to the usage position of the nut body 1. Therefore, if there is a problem with the second compression block 4, a tool can be inserted into the retaining groove 7 to remove the second compression block 4, which achieves the purpose of not being easy to loosen.

Claims

1. A fastening type self-locking nut structure, characterized in that, include: The nut body (1) is the main body of the self-locking nut; Several slots (3) are evenly distributed on the upper surface of the nut body (1) with the center of the nut body (1) as the axis. The cross-sectional shape of the slots (3) is T-shaped. The tail end of the T-shaped vertical section of the slots (3) faces the axis of the nut body (1) and is connected to the threaded surface of the nut body (1). Several extrusion blocks (2) are placed in the slot (3). The extrusion blocks (2) correspond one-to-one with the slot (3). The cross-sectional shape of the extrusion block (2) is T-shaped. The T-shaped placement direction of the extrusion block (2) is consistent with the T-shaped direction of the slot (3). The extrusion block (2) is engaged with the nut body (1) through the slot (3). Several extrusion blocks 2 (4) correspond one-to-one with extrusion block 1 (2). The cross-sectional shape of extrusion block 2 (4) is triangular. The tip of extrusion block 2 (4) passes through the upper end face of nut body (1) and is placed between the slot (3) and extrusion block 1 (2). Extrusion block 2 (4) is perpendicular to the central ray of nut body (1). Extrusion block 2 (4) is engaged with nut body (1) through the cooperation of slot (3) and extrusion block 1 (2).

2. The fastening self-locking nut structure according to claim 1, characterized in that, The upper surface of the nut body (1) is provided with a limiting strip (5). Two limiting strips (5) are a set and correspond one-to-one with the slot (3). The two limiting strips (5) are respectively placed on both ends of the T-shaped horizontal section of the extrusion block (2). The limiting strips (5) are fixedly connected to the nut body (1). The extrusion block (2) is engaged with the nut body (1) through the cooperation of the two limiting strips (5) and the slot (3).

3. The fastening self-locking nut structure according to claim 2, characterized in that, The length of the T-shaped vertical section of the extrusion block (2) is longer than the length of the T-shaped vertical section of the slot (3).

4. The fastening self-locking nut structure according to claim 3, characterized in that, The total length of the T-shaped extrusion block (2) is shorter than the total length of the T-shaped slot (3).

5. The fastening self-locking nut structure according to claim 2, characterized in that, The inner side of the extrusion block (2) is provided with a plurality of toothed bars (6). The toothed bars (6) are evenly distributed on the side of the extrusion block (2) facing the center of the nut body (1). The toothed bars (6) are fixedly connected to the extrusion block (2) and the toothed bars (6) are arranged in a front-back direction.

6. The fastening self-locking nut structure according to claim 1, characterized in that, The extrusion block 2 (4) is provided with a buckle groove (7), and the cross-sectional shape of the buckle groove (7) is T-shaped.

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