CN206111779U

CN206111779U - Double -threaded screw

Info

Publication number: CN206111779U
Application number: CN201620971647.3U
Authority: CN
Inventors: 顾林男
Original assignee: Suzhou Shunyi Hardware Co Ltd
Current assignee: Suzhou Shunyi Hardware Co Ltd
Priority date: 2016-08-29
Filing date: 2016-08-29
Publication date: 2017-04-19
Anticipated expiration: 2026-08-29

Abstract

The utility model discloses a double -threaded screw, it includes: cross recess, the head of tightening up a screw, lower screw terminal and screw rod, the cross recess is located the upper surface of the head of tightening up a screw, tighten up a screw first lower surface with the screw terminal is continuous down, the lower surface of screw terminal sets up a screw rod down, be equipped with the screw thread on the screw rod, the lower extreme of screw rod is equipped with a through -hole, this double -threaded screw is an overall structure. The utility model discloses simple structure, reasonable in design has good manufacturability and sufficient intensity, and is convenient for install and dismantle, can save staff's time greatly, improves work efficiency.

Description

A kind of double-threaded screw

Technical field

This utility model is related to screw field, more particularly to a kind of double-threaded screw.

Background technology

Existing screw is varied, and species is various, there is hexagonal on cap nut, has interior hexagonal, also cross Flower-shape, there is flat mouth in-line, loading and unloading various types of screws needs different corresponding handling instruments, and this is required in family Or service worker has various instruments, if handling instrument is not suitable for, it is difficult to load and unload corresponding screw, needing to use Screw must be changed during wood screw.

Utility model content

This utility model is solved mainly solving the technical problems that provide a kind of double-threaded screw, its is reasonable in design, simple structure Existing screw of having determined is difficult the problem for mounting and dismounting.

To solve above-mentioned technical problem, the technical scheme that this utility model is adopted is to provide a kind of double-threaded screw, its Including：Cross recess, head of tightening up a screw, lower screw terminal and screw rod；The cross recess is located at the upper surface of head of tightening up a screw；It is described to tighten up a screw The lower surface of head is connected with lower screw terminal；The lower surface of the lower screw terminal arranges a screw rod；The screw rod is provided with screw thread；Institute The lower end for stating screw rod is provided with a through hole；The described double-threaded screw is an overall structure.

Preferably, the cross recess indent is on head of tightening up a screw；

Preferably, the length of side of the length of side of the head of tightening up a screw less than lower screw terminal.

The beneficial effects of the utility model are：This utility model simple structure, it is reasonable in design, with good manufacturability and Enough intensity, and screw terminal has large and small two kinds of types, and cross recess is additionally provided with head of tightening up a screw, when dismounting and installation, it is not required to Specific spanner is looked for, is easy to workman to mount and dismount, the time of staff can be greatlyd save, improve work efficiency.

Description of the drawings

Fig. 1 is a kind of schematic diagram of double-threaded screw of this utility model；

The labelling of each part is as follows in accompanying drawing：1st, cross recess；2nd, tighten up a screw head；3rd, lower screw terminal；4th, screw rod；5th, through hole.

Specific embodiment

Preferred embodiment of the present utility model is described in detail below in conjunction with the accompanying drawings, so that advantage of the present utility model Can be easier to be readily appreciated by one skilled in the art with feature, it is apparent clear and definite so as to make to protection domain of the present utility model Define.

Accompanying drawing 1 is referred to, this utility model embodiment includes：Cross recess 1, tighten up a screw a 2, lower screw terminal 3 and screw rod 4； The cross recess 1 be located at tighten up a screw 2 upper surface；2 lower surface of tightening up a screw is connected with lower screw terminal 3；Under described The lower surface of screw terminal 3 arranges a screw rod 4；The screw rod 4 is provided with screw thread；The lower end of the screw rod 4 is provided with a through hole 5；Institute The double-threaded screw is stated for an overall structure.

It is further that the indent of the cross recess 1 is in 2 upper surface of tightening up a screw；

Be further, it is described tighten up a screw 2 the length of side less than lower screw terminal 3 the length of side.

When workman mounts and dismounts, it is not necessary to prepare specific spanner, the cross recess 1 is easy to use screwdriver installation And dismounting；Upper and lower screw terminal is easy to use the spanner of different model and it is mounted and dismounted；When nut is screwed on screw rod 4 When, through hole 5 can be passed through with iron wire, prevent nut from sliding.

Embodiment of the present utility model is the foregoing is only, the scope of the claims of the present utility model is not thereby limited, it is every The equivalent structure made using this utility model description or equivalent flow conversion, or directly or indirectly it is used in other phases The technical field of pass, is included in the same manner in scope of patent protection of the present utility model.

Claims

1. a kind of double-threaded screw, it is characterised in that include：Cross recess, head of tightening up a screw, lower screw terminal and screw rod；The cross recess position In the upper surface of head of tightening up a screw；The lower surface of the head of tightening up a screw is connected with lower screw terminal；The lower surface of the lower screw terminal sets Put a screw rod；The screw rod is provided with screw thread；The lower end of the screw rod is provided with a through hole；The described double-threaded screw is an overall knot Structure.

2. a kind of double-threaded screw according to claim 1, it is characterised in that：The cross recess indent is on head of tightening up a screw.

3. a kind of double-threaded screw according to claim 1, it is characterised in that：The length of side of the head of tightening up a screw is less than lower screw The length of side of head.