CN207879808U - A kind of screw of fast locking - Google Patents

Abstract

The utility model discloses a kind of screws of fast locking, including nut, the nut upper surface is equipped with rotating gravure, and rotating gravure bottom is equipped with mounting hole, the nut lower surface is fixedly connected with cored screw, the cored screw outer surface is equipped with tapping thread, and the cored screw is internally provided with lock uint；The lock uint includes the locking block being arranged in mounting hole, the locking block is equipped with sealed groove, the locking block lower surface is fixedly connected with drive link, the drive link bottom is fixedly connected with support plate, it is installed with taper tapping-head on the support plate circumference, the taper tapping-head lateral surface is equipped with lower auger shell line, it is installed with position-limiting tube at the top of the taper tapping-head, and position-limiting tube is slidably connected with cored screw inner surface, the utility model can not only quickly realize the fastening between component, while also have locking function.

Description

A kind of screw of fast locking

Technical field

The utility model is related to mechanical fasteners device field, specially a kind of screw of fast locking.

Background technology

Screw, also someone be its screw（Screw）, screw rod（Lead screw）.Screw is common name in fact, and screw, screw Bar is all mutually distinguishing.Screw is generally wood screw；Be front end it is acuminous that, screw pitch is larger, is generally used for fastening Ligneous piece, plastic part.Lead screw is machine screw（Machine screws）, it is that of front end tack, screw pitch is smaller, uniformly, general to use In fastening metal, machine part.

Screw is fastened by easy stages using the physics and mathematical principle of the inclined-plane circular rotating and frictional force of object The tool of implements parts.Screw is the general saying of fastener, daily pet phrase.Screw is work indispensable in daily life Industry necessity：The minimum screw that such as camera, glasses, clock and watch, electronics use；TV, electric product, musical instrument, furniture etc. General screw；Large-scale screw, nut are then used as engineering, building, bridge；Traffic tool, aircraft, electric car, automobile etc. are then It is 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 eternal It is important.Screw is the joint invention in people's production and living over the past thousands of years, and from the point of view of application field, it is the first big of the mankind Invention.

Screw main purpose is that industrial product composition is made to be fixed as one, and often occurring in use can not be close between tooth and tooth , excessively firmly locking then screw terminal dialysis or the bad not tight of tooth line etc. fail to reach use condition, be all the precision of quality Problem.Screw is " volume production product ", is not the hand-built art work, in mass production, to reach the quality of high-accuracy stable And affordable price is supplied to for the purpose of consumer.The precision of screw is usually 6g grades, and the crude spiral shell of construction project is 8g grades. The value of screw is highly important, is had in the world because of the bad example for causing automobile factory to go bankrupt of screw quality；Also have because The bad example for causing airplane falling, vehicle to overturn of screw quality.

But existing screw has the following defects：

（1）In use, when components over time to be tightened is in vibrational state, screw is very for screw in the prior art Incidental loosening, it is not firm to cause to connect between fixed component, influences the working performance of machinery；

（2）The clast that screw is generated in the process of installation in the prior art cannot quickly be discharged, the fastening of screw Process is not only very laborious, while screw is it is also possible to stuck in threaded hole or cause thread damage on screw.

Invention content

In order to overcome the shortcomings of that prior art, the utility model provide a kind of screw of fast locking, this practicality is new Type can not only quickly realize the fastening between component, while also have locking function, can effectively solve the problem that background technology The problem of proposition.

Technical solution adopted by the utility model to solve its technical problems is：

A kind of screw of fast locking, including nut, the nut upper surface are equipped with rotating gravure, and rotating gravure bottom Equipped with mounting hole, the nut lower surface is fixedly connected with cored screw, and the cored screw outer surface is equipped with tapping thread, institute It states cored screw and is internally provided with lock uint；

The lock uint includes the locking block being arranged in mounting hole, and sealed groove is equipped in the locking block, described Locking block lower surface is fixedly connected with drive link, and the drive link bottom is fixedly connected with support plate, on the support plate circumference It is installed with taper tapping-head, the taper tapping-head lateral surface is equipped with lower auger shell line, is fixed at the top of the taper tapping-head Position-limiting tube is installed, and position-limiting tube is slidably connected with cored screw inner surface.

Further, equal spiral is provided between the adjacent lower auger shell line and between the adjacent tapping thread Chip space.

Further, the rotating gravure and sealed groove are disposed as ' ten ' fonts.

Further, the outer diameter of the taper tapping-head top circumference is equal with the outer diameter of cored screw.

Further, the mounting hole bottom end is equipped with stop collar.

Compared with prior art, the utility model has the beneficial effects that：

（1）The lock uint of the utility model not only realizes the lower brill of screw entirety, at the same also have the function of it is sealed, Prevent screw to loosen in use and caused by connect illusive problem between secure component；

（2）The taper tapping-head of the utility model and the setting of chip space can rapidly capture taper tapping-head Clast be discharged from threaded hole, it is therefore prevented that screw is stuck in threaded hole, while but also the installation of screw is more laborsaving.

Description of the drawings

Fig. 1 is the overall structure diagram of the utility model；

Fig. 2 is the nut structure schematic diagram of the utility model.

Figure label：

1- nuts；2- rotating gravures；3- mounting holes；4- cored screws；5- tapping threads；6- lock uints；7- chip spaces； 8- stop collars；

601- locking blocks；The sealed grooves of 602-；603- drive links；604- support plates；605- taper tapping-heads；It is bored under 606- Screw thread；607- position-limiting tubes.

Specific implementation mode

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work The every other embodiment obtained, shall fall within the protection scope of the present invention.

As depicted in figs. 1 and 2, the utility model provides a kind of screw of fast locking, including nut 1, the nut 1 Upper surface is equipped with rotating gravure 2, and 2 bottom of rotating gravure is equipped with mounting hole 3, and 3 bottom end of the mounting hole is equipped with stop collar 8, institute It states 1 lower surface of nut and is fixedly connected with cored screw 4,4 outer surface of the cored screw is equipped with tapping thread 5, the hollow spiral shell Bar 4 is internally provided with lock uint 6；

In present embodiment, lock uint 6 not only realizes the lower brill of screw entirety, at the same also have the function of it is sealed, Prevent screw to loosen in use and caused by connect illusive problem between secure component, under lock uint 6 During brill, is also moved downwardly together therewith positioned at external cored screw 4, have the function that secure component, in this implementation In mode, the setting of stop collar 8 limits the depth of 6 times brills of lock uint, it is therefore prevented that 6 bottom end of lock uint and cored screw 4 Separation.

The lock uint 6 includes the locking block 601 being arranged in mounting hole 3, is equipped in the locking block 601 sealed recessed Slot 602,601 lower surface of the locking block are fixedly connected with drive link 603, and 603 bottom of the drive link is fixedly connected with support Disk 604 is installed with taper tapping-head 605 on 604 circumference of the support plate, and 605 lateral surface of taper tapping-head is equipped with Lower auger shell line 606,605 top of the taper tapping-head are installed with position-limiting tube 607, and in position-limiting tube 607 and cored screw 4 Surface is slidably connected.

In present embodiment, lock uint 6 not only realizes the tapping for treating secure component, while also acting locking Function avoids the adverse effect that loosened screw is brought, in the present embodiment, by using on screwdriver pressing nut 1 Rotating gravure 2, cored screw 4 decline so that screwdriver top is contacted with rotating gravure, screwdriver lower part and sealed groove 602 It contacting, at this time bit rotary screwdriver, lock uint 6 is moved synchronously with the holding of cored screw 4, during locking block 601 rotates, Drive link 603 drives support plate 604 to rotate, and the taper tapping-head 605 being fixedly connected with support plate 604 rotates together therewith, It is bored under components interior tapping to be tightened, the screw thread that cored screw 4 has then been attacked along taper tapping-head 605 moves downward, and realizes It treats the fixation of secure component, after the completion of fixed, rotating gravure 2 is reversely rotated using screwdriver, due to the limitation of stop collar 8, Prevent cored screw 4 realizes sealed function, to take out screw entirety from component to be tightened, then needs from exiting Sealed groove 602 and rotating gravure 2 are rotated simultaneously.

Equal spiral is provided with chip removal between the adjacent lower auger shell line 606 and between the adjacent tapping thread 5 Slot 7.

In present embodiment, the setting of chip space 7, the clast that can rapidly capture taper tapping-head 605 is from screw thread It is discharged in hole, it is therefore prevented that screw is stuck in threaded hole, while but also the installation of screw is more laborsaving.

The rotating gravure 2 and sealed groove 602 are disposed as ' ten ' fonts.

In present embodiment, rotating gravure 2 and sealed groove 602 are set as ' ten ' fonts, convenient for simultaneously to lock uint 6 It is rotated with cored screw 4, realizes the fixation for treating secure component, in the present embodiment, rotating gravure 2 and locking groove 602 shape is not limited to ' ten ' fonts, may be alternatively provided as ' one ' font or other shapes.

The outer diameter of 605 top circumference of taper tapping-head is equal with the outer diameter of cored screw 4.

In present embodiment, the outer diameter of 605 top circumference of taper tapping-head is equal with the outer diameter of cored screw 4, ensure that The screw thread of 602 tapping of taper tapping-head is identical as tapping thread 5 so that the downward fortune synchronous with cored screw 4 of taper tapping-head 602 It is dynamic, realize the connection fastening between component to be tightened.

It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this practicality is new in other specific forms Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this practicality is new The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing in the equivalent requirements of the claims will be fallen All changes in justice and range are embraced therein.Any reference numeral in claim should not be considered as limitation Involved claim.

Claims (5)

1. a kind of screw of fast locking, including nut（1）, it is characterised in that：The nut（1）Upper surface is equipped with rotating gravure （2）, and rotating gravure（2）Bottom is equipped with mounting hole（3）, the nut（1）Lower surface is fixedly connected with cored screw（4）, institute State cored screw（4）Outer surface is equipped with tapping thread（5）, the cored screw（4）It is internally provided with lock uint（6）；

The lock uint（6）Including being arranged in mounting hole（3）Interior locking block（601）, the locking block（601）It is equipped with lock Close groove（602）, the locking block（601）Lower surface is fixedly connected with drive link（603）, the drive link（603）Bottom is solid Surely it is connected with support plate（604）, the support plate（604）Taper tapping-head is installed on circumference（605）, the taper attacks Silk head（605）Lateral surface is equipped with lower auger shell line（606）, the taper tapping-head（605）Top is installed with position-limiting tube （607）, and position-limiting tube（607）With cored screw（4）Inner surface is slidably connected.

2. a kind of screw of fast locking according to claim 1, it is characterised in that：The adjacent lower auger shell line （606）Between and the adjacent tapping thread（5）Between spiral be provided with chip space（7）.

3. a kind of screw of fast locking according to claim 1, it is characterised in that：The rotating gravure（2）With it is sealed Groove（602）It is disposed as ' ten ' fonts.

4. a kind of screw of fast locking according to claim 1, it is characterised in that：The taper tapping-head（605）Top The outer diameter and cored screw of portion's circumference（4）Outer diameter it is equal.

5. a kind of screw of fast locking according to claim 1, it is characterised in that：The mounting hole（3）Bottom end is equipped with Stop collar（8）.