Fastener capable of being quickly connected

Abstract

The utility model discloses a fastener capable of fast connection, which comprises a bolt and a limit structure, the outside of the bolt is fixedly connected with a sleeve, the bottom of the sleeve is fixedly connected with a nut, the limit structure is arranged at the bottom of the bolt, and the top of the sleeve is provided with an anti-loose structure. The limiting structure comprises a steel ball, an inclined groove, a groove and a connecting hole, and the groove is formed in the bottom of the bolt. The limiting structure is arranged, the sleeve outside the bolt penetrates through a part needing to be fixed, then the nut penetrates through the lowest end, the bolt is rotated to enable the inclined groove in the bottom end of the bolt to extrude and push the steel ball into the connecting hole, the bolt and the nut are clamped and fixed through the trapezoidal groove in the nut, and on the contrary, the bolt is rotated reversely, so that the part needing to be fixed is fixed. The groove can be directly detached at the position of the steel ball, so that quick connection of the fastener can be realized, the fastener can be simply rotated for several circles, the operation is simplified, and the firmness is strong.

Description

Technical Field

[0001] The utility model relates to the technical field of bolts, in particular to a fastener capable of being quickly connected. Background Art

[0002] Fasteners are an indispensable and important component in mechanical engineering, and they play a key role in the connection and fixation of various equipment and structures. Fasteners are a general term for a type of mechanical parts used to fasten two or more parts into a whole. It usually includes bolts, studs, screws, nuts, self-tapping screws, wood screws, washers, retaining rings, pins, rivets, assemblies and connecting pairs, welding nails and other categories. Fasteners are an indispensable and important component in mechanical engineering, and they play a key role in the connection and fixation of various equipment and structures.

[0003] The conventional existing technical solutions have the following defects:

[0004] 1. When fastening multiple parts, it is necessary to continuously tighten the nuts, which is complicated and cannot be quickly connected. For mechanical parts that often need to be disassembled, it increases the workload for workers;

[0005] 2. After multiple parts are fastened together, after long-term use, the nuts may become loose due to external force and shaking, which will weaken the fastening effect between the parts and affect the use effect. Utility Model Content

[0006] The utility model aims to provide a fastener capable of quick connection, so as to solve the defect of limited heating efficiency of the existing fastener capable of quick connection.

[0007] In order to solve the above technical problems, the utility model provides the following technical solutions: a quick-connect fastener, comprising a bolt and a limiting structure, wherein the outside of the bolt is fixedly connected to a sleeve, and the bottom of the sleeve is fixedly connected to a nut, the bottom of the bolt is provided with a limiting structure, and the top of the sleeve is provided with an anti-loosening structure; the limiting structure comprises a steel ball, an oblique groove, a groove and a connecting hole; the groove is provided at the bottom of the bolt, the bottom of the groove is provided with an oblique groove, steel balls are fixed on both sides of the groove, and the side walls of the sleeve outside the steel balls are provided with connecting holes.

[0008] Preferably, the bolt and the sleeve are threadedly connected, and a trapezoidal groove is provided inside the nut, which is wide at the top and narrow at the bottom. When the steel ball loses its extrusion, the nut can be directly disassembled, which simplifies the operation.

[0009] Preferably, the maximum outer diameter of the steel ball is greater than the minimum inner diameter of the connecting hole, and a clamping structure is formed between the steel ball and the nut to prevent the steel ball from escaping from the connecting hole and to achieve clamping and fixing between the steel ball and the nut.

[0010] Preferably, the distance from the groove to the inner wall of the sleeve is smaller than the maximum outer diameter of the steel ball, and the shape of the inclined groove is narrow at the top and wide at the bottom, so as to prevent the steel ball from sliding into the sleeve and the bolt, and moving upward through the inclined groove to squeeze the steel ball.

[0011] Preferably, the anti-loosening structure includes a spring, a movable groove, a limiting column, a limiting groove, and the movable groove is fixed to the top of the sleeve, and a sliding structure is formed between the movable groove and the sleeve to achieve the up and down movement of the movable groove and the rotatable fixation of the bolt.

[0012] Preferably, a plurality of springs are fixed at the bottom of the movable groove, and the springs are distributed at equal intervals about the center point of the sleeve, and a plurality of limit columns are fixed at the top of the movable groove. The movable groove is pushed upward by the tension of the springs.

[0013] Preferably, a limiting groove is provided on the top of the bolt outside the limiting column, the limiting columns are distributed at equal intervals about the center point of the sleeve, and the outer diameter of the limiting column is smaller than the inner diameter of the limiting groove. The limiting column penetrates into the limiting groove to achieve limiting fixation and prevent rotation between the bolt and the sleeve.

[0014] The utility model provides a fastener that can be connected quickly, and its advantages are: by setting a limited position structure, the sleeve outside the bolt is passed through the part to be fixed, and then the nut is passed through to the lowest end, and the bolt is rotated so that the inclined groove at the bottom end squeezes the steel ball and pushes it into the connection hole, and through the trapezoidal groove in the nut, it is clamped and fixed with the nut, and vice versa, the bolt is rotated in the opposite direction so that the groove is at the position of the steel ball, and it can be directly disassembled, thereby realizing the fast connection of the fastener, and it only needs to be simply rotated a few times, which is simple to operate and has strong firmness;

[0015] By providing an anti-loosening structure, the movable groove is pressed downward to make the limit column disengage from the limit groove. After the parts are fastened and connected, the movable groove is pushed by the tension of the spring, and the limit column is inserted into the limit groove. After the limit fixation is achieved, rotation between the bolt and the sleeve is prevented, thereby enhancing the firmness of the fastener, avoiding loosening during use, and enhancing practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 It is a three-dimensional structural schematic diagram of the nut in the disassembled state of the utility model;

[0018] Figure 3 It is a three-dimensional structural schematic diagram of the sleeve of the utility model in a half-sectioned state viewed from above;

[0019] Figure 4It is a schematic diagram of the three-dimensional structure of the sleeve of the utility model in a half-section state when viewed from above;

[0020] Figure 5 It is a schematic diagram of the three-dimensional structure of the sleeve of the utility model;

[0021] Figure 6 For the utility model Figure 4 A partial enlarged schematic diagram of the three-dimensional structure.

[0022] In the figure: 1. bolt; 2. sleeve; 3. nut; 4. limiting structure; 401. steel ball; 402. inclined groove; 403. groove; 404. connecting hole; 5. anti-loosening structure; 501. spring; 502. movable groove; 503. limiting column; 504. limiting groove. DETAILED DESCRIPTION

[0023] 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.

[0024] See also Figure 1-Figure 6The utility model provides a fastener that can be quickly connected, including a bolt 1 and a limiting structure 4. The outside of the bolt 1 is fixedly connected with a sleeve 2, and the bottom of the sleeve 2 is fixedly connected with a nut 3. The bottom of the bolt 1 is provided with a limiting structure 4, and the top of the sleeve 2 is provided with an anti-loosening structure 5. The bolt 1 and the sleeve 2 are threadedly connected. The inside of the nut 3 is provided with a trapezoidal groove that is wide at the top and narrow at the bottom. The anti-loosening structure 5 includes a spring 501, a movable groove 502, a limiting column 503, a limiting groove 504 and 505. The movable groove 502 is fixed to the top of the sleeve 2, and a sliding structure is formed between the movable groove 502 and the sleeve 2. A plurality of springs 501 are fixed to the bottom of the movable groove 502, and the springs 501 are distributed at equal intervals about the center point of the sleeve 2. A plurality of limiting columns 503 are fixed to the top of the movable groove 502. A limiting groove 504 is arranged on the top of the bolt 1 outside the limiting column 503, and the limiting columns 503 are evenly spaced about the center point of the sleeve 2, and the outer diameter of the limiting column 503 is smaller than the inner diameter of the limiting groove 504; the limiting structure 4 includes a steel ball 401, an inclined groove 402, a groove 403 and a connecting hole 404; the groove 403 is arranged at the bottom of the bolt 1, and the bottom of the groove 403 is provided with an inclined groove 402, steel balls 401 are fixed on both sides of the groove 403, and the side walls of the sleeve 2 outside the steel ball 401 are provided with connecting holes 404, the maximum outer diameter of the steel ball 401 is greater than the minimum inner diameter of the connecting hole 404, and a card structure is formed between the steel ball 401 and the nut 3, the distance from the groove 403 to the inner wall of the sleeve 2 is smaller than the maximum outer diameter of the steel ball 401, and the shape of the inclined groove 402 is narrow at the top and wide at the bottom.

[0025] Refer to the attached Figure 3 , Figure 4 , Figure 5 and Figure 6 When the device is used, first pass the sleeve 2 outside the bolt 1 through the part to be fixed, then pass the nut 3 through the sleeve 2 to the lowest end, press the movable groove 502 downward, so that the limiting column 503 is disengaged from the limiting groove 504, and the sleeve 2 is pressed tightly. The bolt 1 is rotated so that the inclined groove 402 at its bottom end squeezes the steel ball 401 and pushes it into the connecting hole 404, and the trapezoidal groove in the nut 3 is used to make it clamped and fixed with the nut 3. Conversely, the bolt 1 is rotated in the opposite direction so that the groove 403 is at the position of the steel ball 401, and the nut 3 is pulled outward due to its trapezoidal design, so that the steel ball 401 slides and squeezes into the connecting hole 404, and it can be disassembled. After fixing the parts, loosen the movable groove 502, and push the movable groove 502 through the tension of the internal spring 501, so that the limiting column 503 is inserted into the limiting groove 504. After the limit fixation is achieved, the rotation between the bolt 1 and the sleeve 2 is avoided, and loosening can be avoided during use, thereby enhancing practicality.

[0026] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A fastener capable of quick connection, comprising a bolt (1) and a limiting structure (4); Features: The outside of the bolt (1) is fixedly connected to a sleeve (2), and the bottom of the sleeve (2) is fixedly connected to a nut (3), the bottom of the bolt (1) is provided with a limiting structure (4), and the top of the sleeve (2) is provided with an anti-loosening structure (5); The limiting structure (4) comprises a steel ball (401), an inclined groove (402), a groove (403) and a connecting hole (404); The groove (403) is arranged at the bottom of the bolt (1), and an inclined groove (402) is arranged at the bottom of the groove (403). Steel balls (401) are fixed on both sides of the groove (403), and the side walls of the sleeve (2) outside the steel balls (401) are arranged with connecting holes (404).

2. A quick-connect fastener according to claim 1, characterized in that: The bolt (1) and the sleeve (2) are threadedly connected, and a trapezoidal groove is provided inside the nut (3) and is wider at the top and narrower at the bottom.

3. A quick-connect fastener according to claim 1, characterized in that: The maximum outer diameter of the steel ball (401) is greater than the minimum inner diameter of the connecting hole (404), and a clamping structure is formed between the steel ball (401) and the nut (3).

4. A quick-connect fastener according to claim 1, characterized in that: The distance between the groove (403) and the inner wall of the sleeve (2) is smaller than the maximum outer diameter of the steel ball (401), and the shape of the inclined groove (402) is narrow at the top and wide at the bottom.

5. The quick-connect fastener according to claim 1, characterized in that: The anti-loosening structure (5) comprises a spring (501), a movable groove (502), a limiting column (503), limiting grooves (504) and (505); the movable groove (502) is fixed to the top of the sleeve (2), and a sliding structure is formed between the movable groove (502) and the sleeve (2).

6. A quick-connect fastener according to claim 5, characterized in that: A plurality of springs (501) are fixed to the bottom of the movable groove (502), and the springs (501) are distributed at equal intervals about the center point of the sleeve (2). A plurality of limiting columns (503) are fixed to the top of the movable groove (502).

7. A quick-connect fastener according to claim 5, characterized in that: A limiting groove (504) is provided on the top of the bolt (1) outside the limiting column (503), the limiting columns (503) are distributed at equal intervals about the center point of the sleeve (2), and the outer diameter of the limiting column (503) is smaller than the inner diameter of the limiting groove (504).

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