CN216131217U

CN216131217U - Tool-free mounting screw

Info

Publication number: CN216131217U
Application number: CN202121845404.2U
Authority: CN
Inventors: 陈磊; 余刚; 田守进; 万庚; 莫亚平
Original assignee: Shenzhen Lamp Technology Co ltd
Current assignee: Shenzhen Lamp Technology Co ltd
Priority date: 2021-08-09
Filing date: 2021-08-09
Publication date: 2022-03-25
Anticipated expiration: 2031-08-09

Abstract

The utility model discloses a tool-free mounting screw which comprises a rotating cap, wherein a cap sleeve is arranged at the lower end of the rotating cap, an extending threaded sleeve is fixedly connected to the upper end of the cap sleeve, external threads are arranged on the outer surface of a cylinder below the rotating cap, the extending threaded sleeve is in threaded connection with the external threads, a clamping groove is formed in the lower end of the rotating cap, a clamping block is arranged in the clamping groove, a plurality of groups of extending blocks are fixedly connected to the outer surface of the cylinder of the clamping block, and the plurality of groups of extending blocks are clamped with the clamping groove. According to the utility model, the clamping block and the plurality of groups of extension blocks are arranged, so that the connection rod and the rotating cap can be prevented from rotating relatively, meanwhile, the cap sleeve is in threaded connection with the rotating cap through the extension threaded sleeve, the cap sleeve can be disassembled, the clamping block, the connection rod and the threaded rod connector can be conveniently replaced, the screw can adapt to different threaded holes, and the application range of the screw is enlarged.

Description

Tool-free mounting screw

Technical Field

The utility model relates to the field of mounting screws, in particular to a tool-free mounting screw.

Background

The screw is a tool for fastening the parts of the object step by utilizing the physics and mathematical principles of the inclined circular rotation and friction of the object. Screws are a common term for fasteners, a common spoken word. The screw is indispensable industry requisite in daily life: extremely small screws used for cameras, glasses, clocks, electronics, and the like; general screws for televisions, electric appliances, musical instruments, furniture, and the like; large screws and nuts are used for engineering, buildings and bridges; transportation equipment, airplanes, electric cars, automobiles, and the like are used with screws of different sizes. The screw has an important task in industry, and as long as there is industry on earth, the function of the screw is always important. The screw is a common invention in production and life of people for thousands of years, and is the first invention of human according to the application field.

The existing installation screw has certain disadvantages when in use, firstly the existing installation screw can be screwed up by using a tool, and secondly each type of the existing installation screw can only be matched with a screw hole of one type.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a tool-free mounting screw.

In order to achieve the purpose, the utility model adopts the following technical scheme: the utility model provides an exempt from instrument installation screw, is including changeing the cap, the lower extreme of changeing the cap is provided with the cap cover, the upper end fixedly connected with of cap cover extends the thread bush, the below cylinder surface of changeing the cap is provided with the external screw thread, and extends thread bush and external screw thread threaded connection, the lower extreme of changeing the cap is provided with the draw-in groove, be provided with the fixture block in the draw-in groove, the cylinder surface fixedly connected with multiunit extension piece of fixture block, and multiunit extension piece and draw-in groove joint.

As a further description of the above technical solution:

the inside of cap cover is provided with the through-hole, the lower extreme fixedly connected with connecting rod of fixture block, and the connecting rod passes the through-hole.

As a further description of the above technical solution:

the lower end of the connecting rod is fixedly connected with a threaded rod.

As a further description of the above technical solution:

the upper end of the rotating cap is provided with a cross screw.

The utility model has the following beneficial effects:

1. the clamping block and the plurality of groups of extension blocks are arranged, the clamping block and the plurality of groups of extension blocks can be clamped with the clamping groove, the connecting rod and the rotating cap are prevented from rotating relatively, meanwhile, the cap sleeve is in threaded connection with the rotating cap through the extension threaded sleeve, the cap sleeve can be disassembled, the clamping block, the connecting rod and the threaded rod connecting body can be conveniently replaced, the screw can adapt to different threaded holes, and the application range of the screw is enlarged.

2. The rotary cap can play a role of a wrench, so that a user can rotate the rotary cap without using a tool, and the screw is convenient to mount and dismount.

3. The cross screw opening is arranged, so that tools for screwing can be conveniently inserted into the cross screw opening, such as an electric wrench, and the screw can be screwed by a common tool.

Drawings

FIG. 1 is a front view of a tool-less mounting screw according to the present invention;

FIG. 2 is a cross-sectional view of a tool-less mounting screw according to the present invention;

FIG. 3 is an enlarged view of A in FIG. 1;

FIG. 4 is a bottom view of a rotary cap of the screw rotary cap for tool-less installation according to the present invention;

fig. 5 is a perspective view of a screw cap for tool-less mounting according to the present invention.

Illustration of the drawings:

1. turning the cap; 2. an extended threaded sleeve; 3. a cap sleeve; 4. a connecting rod; 5. a threaded rod; 6. a cross screw port; 7. a clamping block; 8. a card slot; 9. an extension block; 10. a through hole; 11. and (4) external threads.

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.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-5, one embodiment of the present invention is provided: a tool-free mounting screw comprises a rotary cap 1, a cap sleeve 3 is arranged at the lower end of the rotary cap 1, an extension thread sleeve 2 is fixedly connected at the upper end of the cap sleeve 3, an external thread 11 is arranged on the outer surface of a cylinder below the rotary cap 1, the extension thread sleeve 2 is in threaded connection with the external thread 11, the cap sleeve 3 is convenient to disassemble and assemble, a clamping groove 8 is arranged at the lower end of the rotary cap 1, a clamping block 7 is arranged in the clamping groove 8, a plurality of groups of extension blocks 9 are fixedly connected on the outer surface of the cylinder of the clamping block 7, the plurality of groups of extension blocks 9 are clamped with the clamping groove 8, the clamping block 7 and the plurality of groups of extension blocks 9 can be clamped with the clamping groove 8, the connecting rod 4 is prevented from rotating relative to the rotary cap 1, meanwhile, the cap sleeve 3 is in threaded connection with the rotary cap 1 through the extension thread sleeve 2, disassembly can be carried out, the replacement of the connecting block 7, the connecting rod 4 and the threaded rod 5 is convenient, and the screw can adapt to different threaded holes, the application range of the screw is increased.

The inside of cap 3 is provided with through-hole 10, and the lower extreme fixedly connected with connecting rod 4 of fixture block 7, and connecting rod 4 passes through-hole 10, and the lower extreme fixedly connected with threaded rod 5 of connecting rod 4 changes the upper end of cap 1 and is provided with cross screw socket 6, can make things convenient for some instruments of going up the screw to insert, for example electric spanner, makes the screw also can screw up with common instrument.

The working principle is as follows: the device selects suitable threaded rod 5 according to the screw hole earlier when using, connecting rod 4, fixture block 7's connector, select earlier threaded rod 5 after good, connecting rod 4, fixture block 7's connector passes through-hole 10 from 3 upper ends of cap, rethread multi-group extends 9 the joint of fixture block 7 in draw-in groove 8, rotate cap 3, through extending fixed cap 1 and the cap 3 of changeing of threaded connection of thread bush 2 and external screw thread 11, it can to change over to the screw hole to aim at screw hole manual rotation cap 1 threaded rod 5 this moment.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.

Claims

1. The utility model provides a exempt from instrument installation screw, includes and changes cap (1), its characterized in that: the lower extreme of commentaries on classics cap (1) is provided with cap sleeve (3), the upper end fixedly connected with of cap sleeve (3) extends thread bush (2), the below cylinder surface of commentaries on classics cap (1) is provided with external screw thread (11), and extends thread bush (2) and external screw thread (11) threaded connection, the lower extreme of commentaries on classics cap (1) is provided with draw-in groove (8), be provided with fixture block (7) in draw-in groove (8), the cylinder surface fixedly connected with multiunit extension piece (9) of fixture block (7), and multiunit extension piece (9) and draw-in groove (8) joint.

2. A tool-less mounting screw as defined in claim 1, wherein: the cap sleeve (3) is internally provided with a through hole (10), the lower end of the fixture block (7) is fixedly connected with a connecting rod (4), and the connecting rod (4) penetrates through the through hole (10).

3. A tool-less mounting screw as defined in claim 2, wherein: the lower end of the connecting rod (4) is fixedly connected with a threaded rod (5).

4. A tool-less mounting screw as defined in claim 1, wherein: the upper end of the rotating cap (1) is provided with a cross screw (6).