Nut convenient to screw and fix

Abstract

The nut convenient to screw and fix comprises a base and a rotating frame, a threaded cylinder is fixedly connected to the inner wall of the base, the outer surface of the threaded cylinder is rotationally connected with one side of the inner wall of the rotating frame, and a plurality of ratchet grooves are formed in the inner wall of the rotating frame. The wrench is clamped on the rotating frame, the wrench is rotated to drive the rotating frame to rotate, the ratchet grooves abut against the special-shaped clamping blocks, the threaded barrel rotates along with the rotating frame at the same time, the threaded barrel is screwed, and when the wrench rotates to a half circle, the wrench rotates backwards, the special-shaped clamping blocks move along with the inclined grooves of the ratchet grooves, the special-shaped clamping blocks are clamped in the other ratchet grooves, and the threaded barrel is screwed tightly. By means of the structural design of the ratchet grooves, the special-shaped clamping blocks and the reset springs, the threaded barrel can rotate in one direction, the situation that the threaded barrel rotates along with the rotating frame when the rotating frame rotates backwards is prevented, the structure is simple, operation is convenient, and the efficiency of screwing and fixing the nut is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of nuts, in particular to a nut which is convenient for tightening and fixing. Background Art

[0002] Nuts, also known as nuts, are parts that are screwed together with bolts or screws to fasten them. They are an essential component in the production of machinery. There are many types of nuts, including self-locking nuts, anti-loosening nuts, locking nuts, four-claw nuts, etc. These nuts vary in shape, size, use, etc. to meet the needs of different mechanical equipment and projects.

[0003] In the prior art, Chinese patent CN221569162U discloses a hexagonal weld nut, comprising: a hexagonal nut, a welding base welded to the bottom of the hexagonal nut, a telescopic component provided at the bottom of the welding base, a pressure component provided at the top center axis of the telescopic component; and the welding base includes a sliding plate.

[0004] At present, most nuts are tightened with a wrench during installation. When tightening nuts in narrow places, the wrench needs to be returned to its original position after being tightened half a turn before being tightened again. This method is inefficient in tightening the fixed nuts and is therefore inconvenient to use. Utility Model Content

[0005] The purpose of the present invention is to provide a nut that is easy to tighten and fix, so as to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a nut that is easy to tighten and fix, comprising a base and a rotating frame, the inner wall of the base is fixedly connected to a threaded barrel, the outer surface of the threaded barrel is rotatably connected to one side of the inner wall of the rotating frame, the inner wall of the rotating frame is provided with a plurality of ratchet grooves, one side of the outer surface of the threaded barrel is rotatably connected to a special-shaped clamping block, one end of the special-shaped clamping block is slidably engaged with the inner wall of any of the ratchet grooves, one side of the outer surface of the special-shaped clamping block is fixedly connected to a reset spring, one end of the reset spring is fixedly connected to a mounting frame, and one side of the mounting frame is fixedly connected to one side of the threaded barrel.

[0007] As a further preferred embodiment of the present technical solution, a limiting rod is fixedly connected to the other side of the outer surface of the threaded barrel, and one side of the limiting rod abuts against one side of the outer surface of the special-shaped clamping block.

[0008] As a further preferred embodiment of the present technical solution, a reinforcing rib is fixedly connected to the other side of the limiting rod, and one side of the reinforcing rib is fixedly connected to one side of the threaded barrel.

[0009] As a further preferred embodiment of the present technical solution, a connecting ring is fixedly connected to the lower end of the base, and a plurality of balls are rollingly connected to the lower end of the connecting ring.

[0010] The utility model provides a nut that is easy to tighten and fix, and has the following beneficial effects:

[0011] The utility model clamps the wrench on the rotating frame, rotates the wrench to drive the rotating frame to rotate, the ratchet groove abuts the special-shaped clamping block, and the threaded barrel rotates simultaneously with the rotating frame to tighten the threaded barrel. When the wrench is rotated half a circle, the wrench is rotated back, and the special-shaped clamping block moves along the oblique groove of the ratchet groove, clamps the special-shaped clamping block in another ratchet groove, and repeats the above operation to tighten and fix the threaded barrel. The structural design of multiple ratchet grooves, special-shaped clamping blocks and return springs can make the threaded barrel rotate in one direction, preventing the threaded barrel from rotating with the rotating frame when the rotating frame rotates back. This structure is simple and easy to operate, and improves the efficiency of tightening and fixing the nut. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the bottom-up structure of the present invention;

[0014] Figure 3 This is a schematic cross-sectional view of the rotating frame of the present invention;

[0015] Figure 4 for Figure 3 A partial enlarged schematic diagram of area A in the middle;

[0016] In the figure: 1. Base; 2. Rotating frame; 3. Threaded cylinder; 4. Connecting ring; 5. Ball; 6. Ratchet groove; 7. Limit rod; 8. Mounting frame; 9. Special-shaped block; 10. Return spring; 11. Reinforcement rib. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0018] The utility model provides a technical solution: Figure 1 - Figure 4As shown, in this embodiment, a nut that is easy to tighten and fix includes a base 1 and a rotating frame 2. The inner wall of the base 1 is fixedly connected with a threaded barrel 3. The outer surface of the threaded barrel 3 is rotatably connected to one side of the inner wall of the rotating frame 2. The inner wall of the rotating frame 2 is provided with a plurality of ratchet grooves 6. One side of the outer surface of the threaded barrel 3 is rotatably connected to a special-shaped clamping block 9. One end of the special-shaped clamping block 9 is slidably engaged with the inner wall of any ratchet groove 6. One side of the outer surface of the special-shaped clamping block 9 is fixedly connected with a return spring 10. One end of the return spring 10 is fixedly connected to a mounting frame 8. One side of the mounting frame 8 is fixedly connected to one side of the threaded barrel 3. By clamping the wrench on the rotating frame 2, the wrench drives the rotating frame 2 to rotate, the ratchet groove 6 abuts against the special-shaped block 9, and the threaded barrel 3 rotates at the same time as the rotating frame 2, so that the threaded barrel 3 is tightened. When the wrench is rotated half a circle, the wrench is rotated back, and the special-shaped block 9 moves along the oblique groove of the ratchet groove 6, and the special-shaped block 9 is clamped in another ratchet groove 6. The above operation is repeated to tighten and fix the threaded barrel 3. The structural design of multiple ratchet grooves 6, special-shaped block 9 and return spring 10 can make the threaded barrel 3 rotate in one direction, preventing the threaded barrel 3 from rotating with the rotating frame 2 when the rotating frame 2 rotates back. This structure is simple and easy to operate, which improves the efficiency of tightening and fixing the nut.

[0019] like Figure 3 and Figure 4 As shown, the other side of the outer surface of the threaded cylinder 3 is fixedly connected to a limiting rod 7, and one side of the limiting rod 7 abuts against one side of the outer surface of the special-shaped clamping block 9. Through the structural design of the limiting rod 7, the rotation range of the special-shaped clamping block 9 can be made smaller, ensuring that the special-shaped clamping block 9 is stuck in the ratchet groove 6.

[0020] like Figure 4 As shown, the other side of the limiting rod 7 is fixedly connected to a reinforcing rib 11, and one side of the reinforcing rib 11 is fixedly connected to one side of the threaded barrel 3. Through the structural design of the reinforcing rib 11, the connection strength between the limiting rod 7 and the threaded barrel 3 can be improved.

[0021] like Figure 2 As shown, the lower end of the base 1 is fixedly connected to a connecting ring 4, and the lower end of the connecting ring 4 is rollingly connected to a plurality of balls 5. Through the structural design of the balls 5 and the connecting ring 4, when the base 1 is fitted with the workpiece, the surface of the balls 5 rolls on the surface of the workpiece, reducing the friction between the base 1 and the workpiece.

[0022] The utility model provides a nut that is easy to tighten and fix, and the specific working principle is as follows:

[0023] When tightening the nut on the workpiece, first put the threaded barrel 3 on the screw of the workpiece, then clamp the wrench on the rotating frame 2, turn the wrench to drive the rotating frame 2 to rotate, the ratchet groove 6 abuts against the special-shaped clamping block 9, and the threaded barrel 3 rotates at the same time as the rotating frame 2, so that the threaded barrel 3 is tightened. When the wrench is rotated half a circle, the wrench is rotated back, and the special-shaped clamping block 9 moves along the oblique groove of the ratchet groove 6, and the special-shaped clamping block 9 is clamped in another ratchet groove 6. Repeat the above operation to tighten the threaded barrel 3.

[0024] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A nut that is easy to tighten and fix, comprising a base (1) and a rotating frame (2), characterized in that: The inner wall of the base (1) is fixedly connected with a threaded barrel (3), the outer surface of the threaded barrel (3) is rotatably connected to one side of the inner wall of the rotating frame (2), the inner wall of the rotating frame (2) is provided with a plurality of ratchet grooves (6), the outer surface of the threaded barrel (3) is rotatably connected to one side of a special-shaped clamping block (9), one end of the special-shaped clamping block (9) is slidably engaged with the inner wall of any of the ratchet grooves (6), the outer surface of the special-shaped clamping block (9) is fixedly connected to one side of a reset spring (10), one end of the reset spring (10) is fixedly connected to a mounting frame (8), and one side of the mounting frame (8) is fixedly connected to one side of the threaded barrel (3).

2. A nut that is easy to tighten and fix according to claim 1, characterized in that: The other side of the outer surface of the threaded barrel (3) is fixedly connected to a limiting rod (7), and one side of the limiting rod (7) abuts against one side of the outer surface of the special-shaped clamping block (9).

3. A nut that is easy to tighten and fix according to claim 2, characterized in that: The other side of the limiting rod (7) is fixedly connected to a reinforcing rib (11), and one side of the reinforcing rib (11) is fixedly connected to one side of the threaded barrel (3).

4. The nut that is easy to tighten and fix according to claim 1, characterized in that: The lower end of the base (1) is fixedly connected to a connecting ring (4), and the lower end of the connecting ring (4) is rollingly connected to a plurality of balls (5).

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