CN112431837A

CN112431837A - Foldable and freely rotatable screw

Info

Publication number: CN112431837A
Application number: CN202011395167.4A
Authority: CN
Inventors: 刘浩; 颜浩洋; 王建兵; 黄华; 沈晓强; 牛刚; 胡明皋
Original assignee: Chongqing Jinmei Communication Co Ltd
Current assignee: Chongqing Jinmei Communication Co Ltd
Priority date: 2020-12-03
Filing date: 2020-12-03
Publication date: 2021-03-02

Abstract

The title of the invention patent and the technical field to which it belongs: the patent name of the invention is 'foldable freely rotatable screw'. The invention discloses a novel screw technology with a screw head capable of being folded and rotated after being locked, and relates to a manual locking screw technology of equipment, in particular to the technical field of manual locking screws of communication equipment. The device comprises a knob, an end cover, a screw and a spring. The spring is installed to the knob bottom, the screw top is equipped with spring mounting hole and knob mounting groove, the end cover is equipped with the trench, and this trench can hold the knob and overturn in the inslot, there are two bulges in the peripheral periphery of end cover, and this bulge can be impressed in the peripheral inslot of screw. The invention adopts the technical scheme that the knob at the head part of the screw is pressed into the groove to transmit the torque, and the spring is used for ejecting the knob out of the groove to disconnect the torque transmission. The technology can realize that the head of the screw can still freely rotate and fold after the screw is locked; the invention is applied to the panel or the mounting rack of equipment, has the advantages that the head part can be rotated and folded after being fastened, and the head part of the screw can be parked at any angle, so that the screw head part can be placed at a position without influencing operation and appearance.

Description

Foldable and freely rotatable screw

Technical Field

The invention relates to a screw technology which can still freely rotate at the head part of a screw after being locked and the screw is not loosened, a screw technology with a foldable head part, in particular to a screw technology of communication equipment.

Background

The existing communication equipment is more and more miniaturized and portable, and the communication equipment is required to have the function of manual quick locking or detaching. In practical applications, the communication device may encounter the following problems:

1. the width of the manually-locked screw is larger, so that the appearance of the equipment is larger, and the equipment is easy to interfere with other devices.

At present, the existing equipment which can be manually disassembled generally adopts a butterfly screw mode, and the butterfly knob part of the butterfly screw is large in size, so that the appearance of the equipment is large, and meanwhile, the equipment is easy to interfere with other devices, which is contradictory to the miniaturization of communication equipment. This is often the case with general communication devices, which require portability (requiring the device to be compact for portability; requiring the device to be manually lockable and unlockable for ease of maintenance), and which otherwise do not have the portability function; however, once the thumb screw is used, the profile of the device is relatively large because the thumb knob portion is relatively large in size.

2. The head of the screw capable of being manually locked is higher, so that the appearance of the equipment is larger.

Generally, since the manually lockable screw needs to be operated by hand, the head of the manually lockable screw is generally high for operability of the screw, such as: the head of the thumb screw is relatively high, and therefore, the trend of miniaturization and portability of the communication equipment is achieved, the thumb screw is generally adopted for the portability of the equipment, and the depth size of the equipment is relatively large due to the relatively high head of the thumb screw, which is contradictory to the miniaturization of the communication equipment.

3. The head of the manual locking screw is easy to hurt people.

At present, portable communication equipment generally needs to be carried around, and a common manual locking screw generally has a butterfly knob, and the screw is vertically erected on the equipment after being fastened, so that a carrier is easily scratched or injured by the butterfly part.

The problem of fastening the manual locking screw is solved, and the technical problem is always solved. To this end, we developed foldable freely rotatable screws.

Disclosure of Invention

1) Solves the technical problem

Aiming at the defects of the prior art, the invention provides a foldable and rotatable screw mechanism, which solves a series of problems caused by the application of the traditional manual locking screw and has three specific points: the problems that the equipment is large in appearance and easily interferes with other devices due to the fact that the width of a screw capable of being locked manually is large are solved; secondly, the problem that the depth size of the equipment is large due to the fact that the head of the screw capable of being locked manually is high is solved; thirdly, the problem that the head of the manual locking screw is easy to hurt people is solved.

2) Overview of the function

The invention provides a screw mechanism capable of being manually locked and disassembled, wherein after the screw is locked, the head part of a screw can be randomly rotated and can be parked at any angle, the head part of the screw has free rotation and folding functions, the head part of a butterfly knob of the screw can be rotated and folded at any time (before or after the screw is locked), and then the butterfly knob of the screw is placed in an area which does not influence the operation and the appearance size, and the folded screw is not easy to hurt people. The following is a comparative example of an application, the function of which can be more clearly demonstrated.

Compared with the application of a foldable and freely rotatable screw, the foldable and freely rotatable screw has the advantages that the foldable and freely rotatable screw is used for the I-communication equipment panel, the II-common butterfly screw and the III-foldable and freely rotatable screw. The distances between the common thumb screw II and the foldable freely rotatable screw III and the edge of the communication equipment panel I are equal, the maximum outline size of the equipment panel is influenced by the position of the common thumb screw II after being fastened, and people are easily injured by the position; and after the foldable freely-rotatable screw III is fastened, the head of the screw can be freely rotated to a position without influencing the external dimension of the panel, and then the head of the screw is folded to reduce the height of the head of the screw. As can be seen by comparison, after the foldable and freely rotatable screw III is applied to the equipment, the overall dimension of the equipment is smaller than that of the equipment using a common thumb screw II, the interference with other devices is not easy to occur, and people are not easy to hurt.

3) Technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme: the invention discloses a foldable and freely rotatable screw which comprises a knob 1, an end cover 2, a screw 3 and a spring 4. The bottom of the 1-knob is provided with a 4-spring, the top of the 3-screw is provided with a round hole and a square groove, the 4-spring is arranged in the round hole, the 1-knob is arranged in the square groove, and the 4-spring props against the 1-knob to provide an upward force for the knob. The 2-end cover is provided with a slot position which can accommodate the 1-knob to turn in the slot, the periphery of the top of the 3-screw is provided with a groove, the periphery of the 2-end cover is provided with two protrusions which can be pressed into the groove on the periphery of the 3-screw, and after the protrusions are pressed, the 2-end cover and the 3-screw can be tightly connected together.

Preferably, the top of the 3-screw is provided with a round hole and a square groove, the 4-spring is arranged in the round hole, the 1-knob is arranged in the square groove, and the 4-spring props against the 1-knob to provide an upward force for the knob.

Preferably, the periphery of the top of the 3-screw is provided with a groove, the periphery of the 2-end cover is provided with two protrusions, the protrusions can be pressed into the groove on the periphery of the 3-screw, and after the protrusions are pressed, the 2-end cover and the 3-screw can be tightly connected together.

Preferably, the 2-end cap is provided with a slot that can accommodate the 1-knob turn inside the slot, in the same direction as the square slot of the 3-screw.

The working principle is as follows: the foldable freely rotatable screw transmits torque acted by a human hand through the 1-knob, when the screw needs to be fastened, the 1-knob is held by the hand to be pressed downwards, the 1-knob compresses the 4-spring downwards, the beam of the 1-knob enters the a-groove (square groove) of the head of the 3-screw, and the beam of the 1-knob is matched with the a-groove (square groove) of the head of the 3-screw, and then the 3-screw rotates along with the 1-knob by rotating the 1-knob, so that the 3-screw can be continuously rotated, and the foldable freely rotatable screw can realize the fastening function. After the fastening function is completed, the pressure of the 1-knob is released by hand, the 1-knob moves upwards under the elastic force of the 4-spring, the 1-knob is separated from the a-groove (square groove) at the head of the 3-screw, the 3-screw cannot rotate along with the 1-knob by hand rotation, the 1-knob can rotate to any position freely, then the 1-knob can be folded, namely the beam of the 1-knob is turned over in the a-groove (square groove) at the head of the 3-screw, and the 4-spring still abuts against the beam part of the 1-knob at the moment, so that the 1-knob can be kept in the state. This realizes that the head of the foldable and freely rotatable screw has the functions of free rotation and folding after the foldable and freely rotatable screw is locked.

4) Advantageous effects

The invention provides a foldable device capable of freely rotating a screw. The method has the following beneficial technical effects:

1) the foldable screw device capable of freely rotating has the advantages of being simple in structure design, low in cost, suitable for equipment panels, capable of saving equipment space, reducing device interference and reducing equipment size and operable space.

2) This collapsible but free rotation screw device is difficult for hindering the people, and fastening equipment is firm, long service life, and the sexual valence relative altitude is worth wideling popularize.

Drawings

FIG. 1 is a schematic diagram of a comparison application of a conventional thumb screw and a "foldable freely rotatable screw";

FIG. 2 is a front view of a "collapsible freely rotatable screw";

FIG. 3 is a side view of a "foldable freely rotatable screw";

FIG. 4 is a cross-sectional view of a collapsible freely rotatable screw;

fig. 5 is a schematic view of the application of the foldable freely rotatable screw.

Detailed Description

1. As shown in fig. 1, two kinds of screws are installed on the equipment panel I, and the advantages of the invention can be seen by comparison: the position of the ordinary thumb screw II after being fastened influences the maximum external dimension of the equipment panel, and the position is easy to hurt people; and the foldable screw III capable of freely rotating does not influence the maximum appearance size of the equipment after being fastened, and can be folded and retracted, so that the use safety is improved.

2. As shown in FIG. 2, 6 devices of the present invention are mounted on a 5-panel, each capable of being placed within the confines of the 5-panel. As shown in figures 2, 3 and 4, firstly, a 4-spring is arranged in a round hole at the top of a 3-screw, then a 1-knob is sleeved on a 2-end cover, the 1-knob is used for pressing the 4-spring, the 1-knob is placed in an a-square groove of the 3-screw, then the 2-end cover is sleeved on the head of the 3-screw, a press is used for pressing a b-bulge part (with two parts on the left and right) of the 2-end cover, and the b part of the 2-end cover is deformed to enter an outer groove of the head part of the 3-screw, so that the 2-end cover and the 3-screw are connected together, and the assembly implementation of the foldable freely rotatable screw is completed.

3. As shown in FIG. 5, when the foldable and freely rotatable screw is applied, the invention is directly screwed into a system consisting of a 5-panel and a 6-box body, and the foldable and freely rotatable screw is screwed.

Claims

1. The foldable and freely rotatable screw comprises four parts, namely a knob 1, an end cover 2, a screw 3 and a spring 4.

2. 1-knob is pressed into the groove at the head of 3-screw to transmit torque, 4-spring is used to push 1-knob out of the groove to disconnect torque transmission, and the torque transmission device is characterized in that: the top of the 3-bolt is provided with a slot position and a hole position, the slot position can accommodate the 1-knob to turn over, and the hole position can allow the 4-spring to be installed and positioned; the periphery of the 3-screw is provided with a groove which can accommodate two bulges arranged at the periphery of the 2-end cover in a riveting mode.

3. The device comprises a 3-screw and is characterized in that a square groove is formed in the top of the device, a beam of a 1-knob is arranged in the groove, a round hole is formed in the groove, and a 4-spring is arranged in the round hole; the 1-knob is characterized in that a cross beam is arranged at the bottom of the 1-knob, a butterfly-shaped thin plate is arranged at the upper part of the 1-knob, the thin plate can be pinched by hands, and the cross beam is arranged in a square groove at the top of the 3-screw; the outer circle of the upper part of the 3-screw is provided with a circular groove, the groove can be provided with a 2-end cover b which is riveted with a deformed tooth-shaped protrusion, the 2-end cover is characterized in that the shape of the 2-end cover is a thin shell column, the end face of the thin shell column is provided with a square groove, and the square groove can be provided with a 1-knob.