Anti-loosening screw for notebook production and installation

Abstract

The application discloses a loosening-preventing screw for notebook production and installation, which comprises a stud, a cavity is arranged in the screw cap, a limiting block is fixedly connected to the inner bottom of the screw cap, a plurality of sliding grooves are formed in the upper surface of the limiting block, a jacking post is slidably connected in the sliding grooves, a first limiting rod is fixedly connected to the upper surface of the jacking post, a rotating disc is arranged on the upper surface of the limiting block, a plurality of arc-shaped grooves are formed in the surface of the rotating disc, a vertical column is fixedly connected to the upper surface of the rotating disc, a sleeve is slidably sleeved on the surface of the vertical column, a gear is fixedly connected to the upper surface of the sleeve, a rotating head is fixedly connected to the top end of the gear, and a limiting ring is fixedly connected to the inner wall surface of the screw cap. Through the above, the loosening-preventing screw for notebook production and installation greatly increases the friction between the screw cap and the inner wall of the thread groove, effectively avoids the loosening of the screw after installation, and increases the stability of the fixing structure.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of fastener, in particular to a screw for preventing loosening in notebook production and installation. BACKGROUND

[0002] Screw refers to screw, which is a tool for tightening machine parts by using the physical and mathematical principles of the inclined surface of the object and the friction force. Screw is a general term for fasteners, and is a daily oral language. Metric screw thread is measured in millimeters (mm). Screws can be found in various types of crafts, serving to fix structures.

[0003] During the assembly of the notebook, a large number of screws are needed for fixation. The original intention of the notebook is to facilitate people to carry and use it for office work. Therefore, when the notebook is carried by people, it is usually placed in a backpack or a handbag, and is subjected to a lot of jolting. Long-term convenient carrying subjected to too much jolting will cause the screws on the notebook to loosen, causing the notebook to be damaged. SUMMARY

[0004] The technical problem solved by the present application is to provide a screw for preventing loosening in notebook production and installation, which has the advantage of not being easy to loosen and solves the problem raised in the background art.

[0005] The present application provides the following technical scheme: a screw for preventing loosening in notebook production and installation, comprising a stud, the top end of the stud is fixedly connected with a nut, the nut is provided with a cavity, the inner bottom of the nut is fixedly connected with a limiting block, a plurality of sliding grooves are formed in the upper surface of the limiting block, a top column is slidably connected in the sliding groove, the upper surface of the top column is fixedly connected with a first limiting rod, a rotating disc is arranged on the upper surface of the limiting block, a plurality of arc-shaped grooves are formed in the surface of the rotating disc, a vertical column is fixedly connected to the upper surface of the rotating disc, a sleeve is slidably sleeved on the surface of the vertical column, a gear is fixedly connected to the upper surface of the sleeve, a rotating head is fixedly connected to the top end of the gear, and a limiting ring is fixedly connected to the inner wall surface of the nut.

[0006] In a preferred embodiment of the present application, the lower surface of the rotating disc is fixedly connected with a rotating column, and the rotating column is rotatably connected with the inner bottom of the nut.

[0007] In a preferred embodiment of the present application, a plurality of through grooves are formed in the outer periphery of the nut, and the positions of the through grooves correspond to those of the top column.

[0008] In a preferred embodiment of the present application, the first limiting rod is located in the arc-shaped groove and is slidably connected with the arc-shaped groove.

[0009] In a preferred embodiment of the present application, the lower surface of the limiting ring is fixedly connected with a tooth, and the gear is located on the lower surface of the limiting ring and is engaged with the tooth.

[0010] In a preferred embodiment of the present application, the limiting ring is sleeved on the outer periphery of the rotating head and is in sliding connection with the rotating head.

[0011] In a preferred embodiment of the present application, the top end of the stand is fixedly connected with a spring, the top end of the spring is fixedly connected with the top wall of the sleeve, the outer periphery surface of the stand is fixedly connected with a second limiting rod on both sides, the outer periphery of the sleeve is provided with a limiting groove on both sides, and the second limiting rod is located in the limiting groove and is in sliding connection with the limiting groove.

[0012] The present application has the beneficial effect that the anti-loose screw for notebook production and installation provided by the present application is characterized in that the first limiting rod is located in the arc-shaped groove, when the rotating disc rotates, the first limiting rod will move along the inner wall of the arc-shaped groove, the moving first limiting rod will drive the top post to slide in the sliding groove, the end of the top post will move out of the through groove and abut against the inner wall of the thread groove connected with the screw, greatly increasing the friction between the nut and the inner wall of the thread groove, effectively avoiding the loosening of the screw after installation, and increasing the stability of the fixing structure. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 The figure is a structural schematic view of a preferred embodiment of the anti-loose screw for notebook production and installation of the present application.

[0014] Figure 2 The figure is a structural schematic view of the present application.

[0015] Figure 3 The figure is Figure 1 a structural schematic view of the inside of the nut.

[0016] The marks in the figure are: 1, screw post, 2, nut, 3, limiting block, 4, sliding groove, 5, top post, 6, first limiting rod, 7, rotating disc, 8, arc-shaped groove, 9, rotating post, 10, stand, 11, sleeve, 12, spring, 13, second limiting rod, 14, limiting groove, 15, gear, 16, limiting ring, 17, tooth, 18, hexagonal groove, 19, first one-groove, 20, second one-groove, 21, through groove, and 22, rotating head. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present application will be described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0018] Please refer to Figures 1-3 the embodiments of the present application.

[0019] The utility model provides a notebook production installation anti -loosening screw, including the stud 1, the top end fixedly connected with the nut 2 of stud 1, the inside of nut 2 is arranged as cavity, the inside bottom fixedly connected with the limiting block 3 of nut 2, the upper surface of limiting block 3 is equipped with a plurality of slide grooves 4, the top post 5 of slide groove 4 is slidably connected, the upper surface fixedly connected with the first limiting rod 6 of top post 5, the upper surface of limiting block 3 is equipped with the rotating disc 7, the surface of rotating disc 7 is equipped with a plurality of arc grooves 8, the upper surface fixedly connected with the stand 10 of rotating disc 7, the surface of stand 10 slidably jacketed with the sleeve 11, the upper surface fixedly connected with the gear 15 of sleeve 11, the top end fixedly connected with the rotating head 22 of gear 15, the inner wall surface fixedly connected with the limiting ring 16 of nut 2.

[0020] The lower surface fixedly connected with the rotating column 9 of rotating disc 7, the inside bottom rotationally connected of rotating column 9 and nut 2, the first limiting rod 6 is located in arc groove 8 and is slidably connected with arc groove 8, the outer circumferential surface of nut 2 is equipped with a plurality of through grooves 21, and the through groove 21 is corresponded with the position of top post 5, and top post 5 can be moved out from the through groove 21 and is supported on the groove inner wall of screw thread connection thread groove, greatly increase the friction of nut 2 and the groove inner wall of thread groove, effectively avoid the loosening of screw after installation, increase the stability of fixed structure.

[0021] The lower surface fixedly connected with the gear tooth 17 of limiting ring 16, the lower surface of gear 15 is located in the lower surface of limiting ring 16 and is engaged with gear tooth 17, the outer circumferential surface of limiting ring 16 is jacketed with rotating head 22 and is slidably connected with rotating head 22, the gear tooth 17 of gear 15 and the lower surface of limiting ring 16 is engaged, can be positioned to gear 15, avoid the rotation of gear 15 and drive sleeve 11 to rotate, the rotating sleeve 11 drives the rotation of stand 10, and rotating disc 7 rotates, the top end fixedly connected with spring 12 of stand 10, the top end of spring 12 is fixedly connected with the top wall of sleeve 11, and spring 12 has elastic force to sleeve 11, and sleeve 11 is supported, so that the position of gear 15 is limited in the gear tooth 17 without external force.

[0022] The outer circumferential surface both sides of stand 10 are fixedly connected with the second limiting rod 13, and the outer circumferential both sides of sleeve 11 are equipped with limiting slot 14, and the second limiting rod 13 is located in limiting slot 14 and is slidably connected with limiting slot 14, and limiting slot 14 can be positioned to second limiting rod 13, and then is positioned to stand 10, and the top center of rotating head 22 is equipped with hexagonal groove 18, facilitating independent adjustment of rotating head 22, and the top edge of rotating head 22 is equipped with first slit 19, and the top end of nut 2 is equipped with second slit 20, facilitating observation of the rotating state of rotating head 22, and the model specification of second slit 20 is same with first slit 19.

[0023] Working principle: when using the device, a screwdriver is inserted into the first slot 19 and the second slot 20, the stud 1 is installed in the threaded hole, after tightening the stud 1, the screwdriver matched with the hexagonal groove 18 is inserted into the hexagonal groove 18 to press the rotating head 22, so that the gear 15 moves below the teeth 17, the meshing state of the gear 15 and the teeth 17 is released, so that the gear 15 can rotate, rotating the rotating head 22 drives the sleeve 11 to rotate, the rotating sleeve 11 drives the column 10 to rotate through the second limiting rod 13 in the limiting groove 14, the rotating disc 7 rotates, the first limiting rod 6 will move along the inner wall of the arc-shaped groove 8, the moving first limiting rod 6 drives the jacking column 5 to slide in the sliding groove 4, so that the end of the jacking column 5 moves out of the through groove 21 and is pressed on the inner wall of the threaded groove connected by the screw, greatly increasing the friction between the nut 2 and the inner wall of the threaded groove.

[0024] The multifunctional disc buckle type scaffold provided by the application has the following distinguished features compared with the prior art:

[0025] 1. The first limiting rod is located in the arc-shaped groove, when the rotating disc rotates, the first limiting rod will move along the inner wall of the arc-shaped groove, the moving first limiting rod will drive the jacking column to slide in the sliding groove, so that the end of the jacking column moves out of the through groove and is pressed on the inner wall of the threaded groove connected by the screw, so that the overall structure is more stable.

[0026] 2. The gear is engaged with the teeth on the lower surface of the limiting ring, so that the position of the gear can be limited.

[0027] 3. The spring has elastic force on the sleeve, the sleeve is pressed, so that the position of the gear is limited by the teeth in the teeth without external force.

[0028] The above-mentioned is only an embodiment of the application, and does not limit the patent range of the application, any equivalent structure or equivalent process transformation using the content of the application specification, or direct or indirect application in other related technical fields, is also included in the patent protection range of the application.

Claims

1. A loose prevention screw for notebook production installation, characterized by, The utility model provides a kind of stud, the top end of the stud is fixedly connected with nut, cavity is arranged in the nut, the inner bottom of the nut is fixedly connected with limiting block, the upper surface of the limiting block is equipped with several sliding grooves, the top column is slidably connected in the sliding groove, the upper surface of the top column is fixedly connected with first limiting rod, the upper surface of the limiting block is equipped with rotary disc, the surface of the rotary disc is equipped with several arc grooves, the upper surface of the rotary disc is fixedly connected with stand, the surface of the stand is slidably sleeved with sleeve, the upper surface of the sleeve is fixedly connected with gear, the top end of the gear is fixedly connected with rotating head, the inner wall surface of the nut is fixedly connected with limiting ring; The top end of the stand is fixedly connected with spring, the top end of the spring is fixedly connected with the top wall of sleeve, the outer circumferential surface both sides of the stand are fixedly connected with second limiting rod, the outer circumferential both sides of the sleeve are equipped with limiting slot, the second limiting rod is located in limiting slot and is slidably connected with limiting slot; The outer circumferential of the nut is equipped with several through grooves, the position of the through groove is corresponding with top column; The lower surface of the limiting ring is fixedly connected with tooth, the gear is located in the lower surface of limiting ring and is engaged with tooth.

2. The anti-loosening screw for notebook production installation according to claim 1, characterized by The lower surface of the rotary disc is fixedly connected with rotating column, and the rotating column is rotatably connected with the inner bottom of the nut.

3. The anti-loosening screw for notebook production installation according to claim 1, characterized by The first limiting rod is located in arc groove and is slidably connected with arc groove.

4. The anti-loosening screw for notebook production installation according to claim 1, characterized by The limiting ring is sleeved on the outer circumferential of rotating head and is slidably connected with rotating head.

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