CN206592399U

CN206592399U - A kind of double end connecting screw

Info

Publication number: CN206592399U
Application number: CN201720089511.4U
Authority: CN
Inventors: 侯海祥
Original assignee: Suzhou Haig Precision Hardware Co Ltd
Current assignee: Suzhou Haig Precision Hardware Co Ltd
Priority date: 2017-01-23
Filing date: 2017-01-23
Publication date: 2017-10-27
Anticipated expiration: 2027-01-23

Abstract

The utility model discloses a kind of double end connecting screw, including screw body, the screw body is column structure；The screw body includes shaft coupling, swivel nut bar and lead screw；The axial direction of the lead screw, shaft coupling, swivel nut bar along the screw body is sequentially connected；Lead screw surface axial screw is surrounded with external screw thread；The outer end of the swivel nut bar is axially arranged the screw hole coordinated with the lead screw extended internally, and the surface axial screw of the swivel nut bar is surrounded with external screw thread, and the screw hole spiral inner wall of the swivel nut bar is surrounded with internal thread；The internal thread of the screw hole is adapted with the external screw thread of the lead screw.The utility model is simple and reasonable, using flexible, be particularly suitable for use in it is multipart be sequentially connected, mechanical strength is good, convenient disassembly, while also can be used without nut, processing is simple, and manufacturing cost is low, and service life is long.

Description

A kind of double end connecting screw

Technical field

The utility model is related to hardware screw field, more particularly to a kind of double end connecting screw.

Background technology

Screw is a kind of common connector, is the physics and mathematics of the inclined-plane circular rotating and frictional force that utilize object Principle, fastens the instrument of implements parts by easy stages.Screw is industrial necessity indispensable in daily life：As taken a picture The minimum screw that machine, glasses, clock and watch, electronics etc. are used；The general screw of TV, electric product, musical instrument, furniture etc.；As for Engineering, building, bridge then use large-scale screw, nut；Traffic tool, aircraft, electric car, automobile etc. are then used in combination for big primary screw. Screw industrially bears vital task, as long as there is industry on the earth, then the function of screw is forever important.Screw is 1,100 Joint invention over year in people's production and living, from the point of view of application field, it is the first big invention of the mankind.Traditional screw General one end is set to screw terminal, and the other end is lead screw, and outside nut coordinates, connector is all fastened on screw terminal with Between nut.But such as some household electrical appliances modules, cabinet electrical equipment, the module and casing fixed by conventional screw often will be a lot Part is all fixed by screw together.It is cumbersome, it is necessary to will safeguard that all parts in position are all taken apart when safeguarding.Therefore, A kind of both-end of demand can be connected, and the screw structure that stratiform is installed can be realized, during maintenance, it is only necessary to take maintenance part apart Articulamentum, outwardly and inwardly need not all dismantle.

Utility model content

In order to solve the above technical problems, the utility model provides a kind of double end connecting screw, for of the prior art Deficiency, using double end attachment structure and from by the way of being combined attachment structure, multi-section can not be carried out by solving conventional screw single head The problem of part is independently sequentially connected.

To reach above-mentioned purpose, the technical solution of the utility model is as follows：A kind of double end connecting screw, including screw sheet Body, the screw body is column structure；The screw body includes shaft coupling, swivel nut bar and lead screw；The lead screw, axle The axial direction of joint, swivel nut bar along the screw body is sequentially connected；Lead screw surface axial screw is surrounded with outer spiral shell Line；The outer end of the swivel nut bar is axially arranged the screw hole coordinated with the lead screw extended internally, the swivel nut bar Surface axial screw is surrounded with external screw thread, and the screw hole spiral inner wall of the swivel nut bar is surrounded with internal thread；It is described The internal thread of screw hole is adapted with the external screw thread of the lead screw.

As a kind of preferred scheme of the present utility model, the externally threaded direction of circling one of the swivel nut bar and lead screw Cause.

As a kind of preferred scheme of the present utility model, the shaft coupling is to be arranged at intervals with cylinder, periphery along axle To anti-skidding burr.

As a kind of preferred scheme of the present utility model, the shaft coupling is positive six prismsby or positive eight prismatic.

As a kind of preferred scheme of the present utility model, the outer end end face of the lead screw is provided with flat recess or cross Groove.

It is used as a kind of preferred scheme of the present utility model, in addition to rubber packing；The rubber packing is cylindrical shape, is arranged In outside the swivel nut bar.

By above-mentioned technical proposal, the beneficial effect of technical solutions of the utility model is：The utility model is simple in construction to be closed Reason, using flexible, be particularly suitable for use in it is multipart be sequentially connected, mechanical strength is good, convenient disassembly, while can also make without nut With processing is simple, and manufacturing cost is low, and service life is long.

Brief description of the drawings

, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art Or the accompanying drawing used required in description of the prior art is briefly described, it should be apparent that, drawings in the following description are only It is some embodiments of the present utility model, for those of ordinary skill in the art, is not paying the premise of creative work Under, other accompanying drawings can also be obtained according to these accompanying drawings.

Fig. 1 is the structural representation disclosed in the utility model embodiment.

Numeral and the corresponding component title represented by letter in figure：

1. the swivel nut bar of 2. shaft coupling of lead screw 3.

4. screw hole.

Embodiment

Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made The every other embodiment obtained, belongs to the scope of the utility model protection.

With reference to Fig. 1, the utility model provides a kind of double end connecting screw, including screw body, and the screw body is Column structure；The screw body includes shaft coupling 2, swivel nut bar 3 and lead screw 1；The lead screw 1, shaft coupling 2, swivel nut bar 3 It is sequentially connected along the axial direction of the screw body；The surface axial screw of lead screw 1 is surrounded with external screw thread；The swivel nut The outer end of bar 3 is axially arranged the screw hole 4 coordinated with the lead screw 1 extended internally, the surface axial direction of the swivel nut bar 3 Spiral surrounding is provided with external screw thread, and the spiral inner wall of screw hole 4 of the swivel nut bar 3 is surrounded with internal thread；The screw hole 4 Internal thread be adapted with the external screw thread of the lead screw 1.The externally threaded direction of circling one of the swivel nut bar 3 and lead screw 1 Cause.

In said structure, the shaft coupling 2 can be cylinder, when such as cylinder, be arranged at intervals with periphery along axle To anti-skidding burr；It can also be positive six prismsby or positive eight prismatic, be that positive six prismsby or positive eight prismatic can use hexagonal spiral shell Silk instrument or anistree screw tool are fastened.

In order to improve convenience of the present utility model, the outer end end face of the lead screw 1 is provided with flat recess or cross recess.

In order to be more convenient adjustment connection spacing, rubber packing can also be set；The rubber packing is cylindrical shape, is sheathed on Outside the swivel nut bar 3.

The utility model can be sequentially connected with multiple, can also be coordinated with outside nut, easy to use and flexible.

By above-mentioned specific embodiment, the beneficial effects of the utility model are：The utility model is simple and reasonable, uses Flexibly, be particularly suitable for use in it is multipart be sequentially connected, when any two adjacent component is dismantled, do not interfere with miscellaneous part, Mechanical strength is good, convenient disassembly, while also can be used without nut, processing is simple, and manufacturing cost is low, and service life is long.

The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or new using this practicality Type.A variety of modifications to these embodiments will be apparent for those skilled in the art, determine herein The General Principle of justice can in other embodiments be realized in the case where not departing from spirit or scope of the present utility model.Cause This, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein The most wide scope consistent with features of novelty.

Claims

1. a kind of double end connecting screw, it is characterised in that including screw body, the screw body is column structure；The spiral shell Silk body includes shaft coupling, swivel nut bar and lead screw；The axial direction of the lead screw, shaft coupling, swivel nut bar along the screw body It is sequentially connected；Lead screw surface axial screw is surrounded with external screw thread；The outer end of the swivel nut bar is axially arranged oriented The screw hole coordinated with the lead screw of interior extension, the surface axial screw of the swivel nut bar is surrounded with external screw thread, institute The screw hole spiral inner wall for stating swivel nut bar is surrounded with internal thread；The internal thread of the screw hole and the outer spiral shell of the lead screw Line is adapted.

2. double end connecting screw according to claim 1, it is characterised in that the swivel nut bar and lead screw it is externally threaded Direction of circling is consistent.

3. double end connecting screw according to claim 1, it is characterised in that the shaft coupling be on cylinder, periphery between Every being provided with anti-skidding burr vertically.

4. double end connecting screw according to claim 1, it is characterised in that the shaft coupling is positive six prismsby or positive eight rib Cylindricality.

5. double end connecting screw according to claim 1, it is characterised in that the outer end end face of the lead screw is provided with one Word groove or cross recess.

6. double end connecting screw according to claim 4, it is characterised in that also including rubber packing；The rubber packing For cylindrical shape, it is sheathed on outside the swivel nut bar.