CN216143047U

CN216143047U - Locking non-return flat round head screw

Info

Publication number: CN216143047U
Application number: CN202121832992.6U
Authority: CN
Inventors: 彭丽
Original assignee: Nantong Jinzhai Hardware Co ltd
Current assignee: Nantong Jinzhai Hardware Co ltd
Priority date: 2021-08-06
Filing date: 2021-08-06
Publication date: 2022-03-29
Anticipated expiration: 2031-08-06

Abstract

The utility model discloses a loose-proof non-return flat round-head screw which comprises a screw body, wherein the screw body consists of a screw cap and a screw rod, a sliding groove is formed in the screw cap, a transmission plate is arranged in the sliding groove, the bottom of the transmission plate is symmetrically and fixedly connected with a connecting rod, fixed blocks are symmetrically and slidably connected in the screw cap, and the fixed blocks are fixedly connected with the connecting rod. Through setting up spring, locking frame and bolt, realized giving screw body an ascending power, have the trend that drives the screw body upward movement motion, the screw thread on the screw rod closely crowds tightly with the tooth's socket by the internal portion of fixture to prevent that the screw body is not hard up, set up stopper, tooth and chute, realized further locking to the screw body, support tight screw body, prevent that the screw body from rotating.

Description

Locking non-return flat round head screw

Technical Field

The utility model relates to the technical field of loose prevention of round-head screws, in particular to a loose-proof non-return flat round-head screw.

Background

The round head screw has only a straight groove and a head shape, the head of the screw with a semi-circular shape is exposed out of the installation surface, the screw is a tool for fastening the parts of an object step by utilizing the physics and mathematical principles of the inclined plane circular rotation and the friction of the object, the screw is a general expression of a fastener, a daily oral utterance is a necessary industrial necessity in daily life, such as a tiny screw used by a camera, glasses, a clock, an electronic device and the like, a common screw of a television, an electrical product, a musical instrument, furniture and the like, a large screw and a nut are used for engineering, buildings and bridges, traffic appliances, airplanes, electric trains, automobiles and the like are combined into a big screw and a small screw, the screw has an important task in industry, the function of the screw is always important as long as the industry exists on the earth, the screw is a common invention in production life of hundreds of years, according to the application field, the round head screw is mainly used for connecting two workpieces together to play a fastening role, the round head screw is only provided with a straight groove and a head, the head of the screw with a semi-circular shape after installation is exposed out of an installed surface, the existing round head screw is affected by various internal stresses after being screwed, each part can deviate to cause the screw to be loosened, and therefore two connected objects can be loosened, and the problem needs to be solved by designing the anti-loosening non-return flat round head screw.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an anti-loose non-return flat round-head screw to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme:

the utility model provides a flat button head screw of locking non return, includes the screw body, its characterized in that, the screw body has nut and screw rod to constitute, the spout has been seted up to the inside of nut, the inside of spout is equipped with the driving plate, the bottom symmetry fixedly connected with connecting rod of driving plate, the inside symmetry sliding connection of nut has the fixed block, fixed block and connecting rod fixed connection.

Preferably, the inner thread of the nut is connected with a bolt, and the bottom of the bolt is rotatably connected with the transmission plate.

Preferably, the inside sliding connection of fixed block has locking frame, the inside symmetry of fixed block is equipped with the spring.

Preferably, the bottom of the anti-loosening frame is provided with teeth.

Preferably, the inside symmetry of nut is equipped with the stopper, stopper and driving plate fixed connection.

Preferably, the bottom of the limiting block is provided with inclined teeth.

The utility model has the following beneficial effects: through setting up spring, locking frame and bolt, realized giving screw body an ascending power, have the trend that drives the screw body upward movement motion, the screw thread on the screw rod closely crowds tightly with the tooth's socket by the internal portion of fixture to prevent that the screw body is not hard up, set up stopper, tooth and chute, realized further locking to the screw body, support tight screw body, prevent that the screw body from rotating.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model without limiting the utility model in which:

FIG. 1 is a cross-sectional view of the present invention;

FIG. 2 is a bottom view of the present invention;

FIG. 3 is a top view of the present invention;

fig. 4 is an enlarged view of the utility model at a.

In the figure: 1. a screw body; 2. a nut; 3. a screw; 4. a chute; 5. a drive plate; 6. a bolt; 7. a connecting rod; 8. a fixed block; 9. a locking frame; 10. a spring; 11. teeth; 12. a limiting block; 13. and (4) helical teeth.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution:

the utility model provides a flat button head screw of locking non return, including screw body 1, screw body 1 has nut 2 and screw rod 3 to constitute, spout 4 has been seted up to the inside of nut 2, the inside of spout 4 is equipped with driving plate 5, the bottom symmetry fixedly connected with connecting rod 7 of driving plate 5, the inside symmetry sliding connection of nut 2 has fixed block 8, fixed block 8 and connecting rod 7 fixed connection, spring 10 and locking frame 9 have realized having the trend that drives the motion of 1 upward movement of screw body, the screw thread on the screw rod 3 is closely crowded tightly with the tooth's socket by the internal portion of fixture, thereby prevent that screw body 1 is not hard up.

Further, the internal thread of the nut 2 is connected with a bolt 6, the bottom of the bolt 6 is rotatably connected with the transmission plate 5, and the locking frame 9 and the limiting block 12 are driven to move downwards.

Further, the inside sliding connection of fixed block 8 has locking frame 9, and the inside symmetry of fixed block 8 is equipped with spring 10, drives the trend of screw body 1 to the upward motion.

Furthermore, the bottom of the anti-loosening frame 9 is provided with teeth 11 to prevent the screw body 1 from rotating.

Further, the inside symmetry of nut 2 is equipped with stopper 12, stopper 12 with driving plate 5 fixed connection, further locking screw body 1.

Furthermore, the bottom of the limiting block 12 is provided with inclined teeth 13 to prevent the screw body 1 from rotating, so that the screw body 1 is prevented from loosening.

Specifically, when the anti-loosening screw is used, the screw body 1 is tightened, after the screw body is tightened, the bolt 6 is rotated, the bolt 6 moves downwards, the bolt 6 drives the transmission plate 5 to move downwards, the transmission plate 5 drives the connecting rod 7 to move downwards, the connecting rod 7 drives the fixed block 8 to move downwards, the fixed block 8 drives the anti-loosening frame 9 to move downwards, the anti-loosening frame 9 moves upwards under the action of a counterforce, the anti-loosening frame 9 extrudes the spring 10, the spring 10 is compressed, the screw body 1 is driven to move upwards, threads on the screw rod 3 are tightly extruded with tooth grooves in the body of a fixed object, the screw body 1 is prevented from loosening, the transmission plate 5 drives the limiting block 12 to move downwards, the limiting block 12 extrudes the fixed object, and the inclined teeth 13 prevent sliding, so that the screw body 1 is prevented from loosening.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

Furthermore, the terms "first", "second", "third" +

Fourth is used for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby the features defined as "first", "second", "third" and "fourth" may explicitly or implicitly include at least one such feature.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "disposed," "connected," "secured," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a flat button head screw of locking non return, includes screw body (1), its characterized in that, screw body (1) has nut (2) and screw rod (3) to constitute, spout (4) have been seted up to the inside of nut (2), the inside of spout (4) is equipped with driving plate (5), the bottom symmetry fixedly connected with connecting rod (7) of driving plate (5), the inside symmetry sliding connection of nut (2) has fixed block (8), fixed block (8) and connecting rod (7) fixed connection.

2. The loose-proof round head screw as claimed in claim 1, wherein: the internal thread of nut (2) is connected with bolt (6), the bottom and driving plate (5) of bolt (6) are rotated and are connected.

3. The loose-proof round head screw as claimed in claim 1, wherein: the anti-loosening device is characterized in that the inside of the fixing block (8) is connected with an anti-loosening frame (9) in a sliding mode, and springs (10) are symmetrically arranged inside the fixing block (8).

4. The loose-proof round head screw according to claim 3, wherein: teeth (11) are arranged at the bottom of the anti-loosening frame (9).

5. The loose-proof round head screw according to claim 4, wherein: the inside symmetry of nut (2) is equipped with stopper (12), stopper (12) with driving plate (5) fixed connection.

6. The loose-proof round head screw according to claim 5, wherein: the bottom of the limiting block (12) is provided with oblique teeth (13).