CN111853029A

CN111853029A - Fastening screw convenient to width compensation

Info

Publication number: CN111853029A
Application number: CN202010727698.2A
Authority: CN
Inventors: 李文奎
Original assignee: Ningbo Yinzhou Lihua Electric Appliance Co Ltd
Current assignee: Ningbo Yinzhou Lihua Electric Appliance Co Ltd
Priority date: 2020-07-23
Filing date: 2020-07-23
Publication date: 2020-10-30

Abstract

The invention discloses a fastening screw convenient for width compensation, relates to the technical field of fastening screws, and aims to solve the problems of poor anti-loosening effect and low stability of the conventional fastening screw. The utility model discloses a locking device of a screw driver, including retaining member, locking sleeve, screw head, locking sleeve, screw rod, locking sleeve's inside is provided with locking sleeve, locking sleeve's internally mounted has the screw body, be provided with the spiral shell head in the screw body, the fixed circular through-hole that is provided with in locking sleeve's bottom, the fixed screw rod that is provided with in below of spiral shell head, and the one end of screw rod extends to the outside of circular through-hole, be provided with the external screw thread on the outer wall of screw rod, and external screw thread and retaining member threaded connection, the last fixed surface of spiral shell head is provided with a word groove, the fixed circular deep trouth that is provided with in below of word groove, the inside of screw rod is provided with well cavity, and well cavity link.

Description

Fastening screw convenient to width compensation

Technical Field

The invention relates to the technical field of fastening screws, in particular to a fastening screw convenient for width compensation.

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 screw is mainly used for connecting two workpieces together and has the fastening function.

The existing fastening screw has poor anti-loose effect and low stability; thus, the existing requirements are not met, for which we propose a fastening screw that facilitates width compensation.

Disclosure of Invention

The invention aims to provide a fastening screw convenient for width compensation, and aims to solve the problems of poor locking effect and low stability of the conventional fastening screw in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a fastening screw convenient for width compensation comprises a locking piece, wherein a locking sleeve is arranged inside the locking piece, a screw main body is arranged in the locking sleeve, a screw head is arranged on the screw main body, a round through hole is fixedly arranged at the bottom of the locking sleeve, a screw rod is fixedly arranged below the screw head, one end of the screw rod extends to the outside of the circular through hole, the outer wall of the screw rod is provided with external threads, the external thread is connected with the locking part by screw thread, the upper surface of the screw head is fixedly provided with a straight groove, the lower part of the straight groove is fixedly provided with a round deep groove, the inner part of the screw rod is provided with a hollow cavity, the hollow cavity is communicated with the circular deep groove, the inner wall of the hollow cavity is provided with a solid wax layer, a metal cylinder is fixedly arranged inside the hollow cavity, and a heat conducting column is arranged inside the metal cylinder.

Preferably, the two sides of the locking sleeve are fixedly provided with elastic protrusions, and the elastic protrusions are fixedly connected with the locking piece through grooves.

Preferably, the screw head is fixedly connected with the locking sleeve through an oil-free lubricating sleeve, and the oil-free lubricating sleeve is provided with two oil-free lubricating sleeves.

Preferably, the inner wall of the locking sleeve is fixedly provided with an elastic flange.

Preferably, the internal thread of the circular deep groove is provided with a sealing cover, a cover handle is fixedly arranged above the sealing cover, and the inner wall of the circular deep groove is fixedly provided with an annular limiting block.

Preferably, the front end face and the rear end face of the screw rod are both fixedly provided with a plurality of through holes.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the invention, the elastic bulge is matched with the groove, so that the locking sleeve is conveniently pressed into the locking part, the locking sleeve is effectively positioned, the elastic bulge has certain elasticity, the locking sleeve is convenient to mount, dismount and replace, and the oil-free lubricating sleeve plays a role in stopping rotation of the locked screw head and avoids easy loosening.

2. Through the setting of a metal cylinder, be convenient for place of heat conduction post, be equipped with a plurality of heat conduction holes on the metal cylinder, can be with heat conduction to solid wax layer in the heat conduction post on, thereby make the wax layer melt, the through-hole is convenient for melted wax flow out the back and is carried out the width compensation to the screw, through setting up circular deep trouth in the below in a word groove, the opening and shutting of circular deep trouth internal seal cover is convenient for get of heat conduction post and is put, the lid is convenient for take out the closing cap from circular deep trouth or put into, annular stopper has played spacing effect to the closing cap.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the internal structure of the screw of the present invention;

FIG. 3 is a schematic view of the internal structure of the screw head according to the present invention;

FIG. 4 is a schematic top view of the screw head of the present invention;

in the figure: 1. a locking member; 2. a screw; 3. an external thread; 4. a straight slot; 5. a through hole; 6. a circular deep groove; 7. sealing the cover; 8. a screw head; 9. a screw body; 10. a locking sleeve; 11. a groove; 12. an elastic bulge; 13. a circular through hole; 14. an elastic flange; 15. an oil-free lubricating sleeve; 16. a solid wax layer; 17. a metal cylinder; 18. a heat-conducting column; 19. a hollow cavity; 20. an annular stop block; 21. and (6) covering the handle.

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.

Referring to fig. 1-4, an embodiment of the present invention is shown: a fastening screw convenient for width compensation comprises a locking member 1, a locking sleeve 10 is arranged inside the locking member 1, a screw main body 9 is arranged inside the locking sleeve 10, a screw head 8 is arranged on the screw main body 9, a circular through hole 13 is fixedly arranged at the bottom of the locking sleeve 10, a screw rod 2 is fixedly arranged below the screw head 8, one end of the screw rod 2 extends to the outside of the circular through hole 13, an external thread 3 is arranged on the outer wall of the screw rod 2, the external thread 3 is in threaded connection with the locking member 1, a linear groove 4 is fixedly arranged on the upper surface of the screw head 8, a circular deep groove 6 is fixedly arranged below the linear groove 4, a hollow cavity 19 is arranged inside the screw rod 2, the hollow cavity 19 is communicated with the circular deep groove 6, a concrete expanding agent is filled in the hollow cavity 19 to prevent the screw rod 2 from cracking, a solid wax layer 16 is arranged on the inner wall of the hollow cavity 19, the metal cylinder 17 is fixedly arranged inside the hollow cavity 19, the heat conducting column 18 is arranged inside the metal cylinder 17, and the heat conducting column 18 plays a role in conducting heat energy.

Further, the both sides of locking sleeve 10 are all fixed and are provided with elastic bulge 12, and elastic bulge 12 passes through recess 11 and retaining member 1 fixed connection, through elastic bulge 12 and recess 11's cooperation, is convenient for impress locking sleeve 10 into the inside of retaining member 1, has played effectual location to locking sleeve 10, and elastic bulge 12 has certain elasticity, the installation and the dismantlement of the locking sleeve 10 of being convenient for are changed.

Further, the spiral shell head 8 is through oil-free lubrication cover 15 and locking sleeve 10 fixed connection, and oil-free lubrication cover 15 is provided with two, and oil-free lubrication cover 15 has played the effect of spline to the spiral shell head 8 of locking, avoids becoming flexible easily.

Furthermore, the inner wall of the locking sleeve 10 is fixedly provided with an elastic flange 14, and the elastic flange 14 has certain elasticity, so that the lower surface of the screw head 8 is protected and buffered.

Further, the inside screw thread of circular deep groove 6 is provided with closing cap 7, and the fixed lid 21 that is provided with in top of closing cap 7, the fixed annular stopper 20 that is provided with of inner wall of circular deep groove 6, the opening and shutting of closing cap 7 are convenient for get and put of heat conduction post 18, and the lid 21 is convenient for take out the closing cap from circular deep groove 6 or put into, and annular stopper 20 has played spacing effect to closing cap 7.

Further, the front end face and the rear end face of the screw rod 2 are fixedly provided with a plurality of through holes 5, and the through holes 5 are used for compensating the width of the screw rod after the molten wax layer flows out conveniently.

The working principle is as follows: when the locking sleeve is used, the elastic bulge 12 is matched with the groove 11, the locking sleeve 10 is conveniently pressed into the locking part 1, the locking sleeve 10 is effectively positioned, the elastic bulge 12 has certain elasticity, the locking sleeve 10 is convenient to mount, dismount and replace, then the screw main body 9 penetrates into the locking sleeve 10 and is fixed with the locking part 1, the oil-free lubricating sleeve 15 is arranged, the oil-free lubricating sleeve 15 plays a role in stopping rotation of the locked screw head 8 and avoids easy loosening, the arrangement of the metal barrel 17 is convenient for the placement of the heat conducting column 18, the metal barrel 17 is provided with a plurality of heat conducting holes, heat energy in the heat conducting column 18 can be conducted to the solid wax layer 16, so that the wax layer is melted, the through hole 5 is convenient for width compensation of the screw after the melted wax flows out, the circular deep groove 6 is arranged below the straight groove 4, the opening and closing of the sealing cover 7 in the circular deep groove 6 is convenient for the taking and placing of the heat conducting column 18, the cover handle 21 is convenient for taking out or putting in the sealing cover 7 from the circular deep groove 6, and the annular limiting block 20 plays a limiting role in limiting the sealing cover 7.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A fastening screw facilitating width compensation, comprising a locking member (1), characterized in that: the locking device is characterized in that a locking sleeve (10) is arranged inside the locking sleeve (1), a screw main body (9) is arranged inside the locking sleeve (10), a screw head (8) is arranged on the screw main body (9), a circular through hole (13) is fixedly arranged at the bottom of the locking sleeve (10), a screw rod (2) is fixedly arranged below the screw head (8), one end of the screw rod (2) extends to the outside of the circular through hole (13), an external thread (3) is arranged on the outer wall of the screw rod (2), the external thread (3) is in threaded connection with the locking member (1), a straight groove (4) is fixedly arranged on the upper surface of the screw head (8), a circular deep groove (6) is fixedly arranged below the straight groove (4), a hollow cavity (19) is arranged inside the screw rod (2), and the hollow cavity (19) is communicated with the circular deep groove (6), the inner wall of the hollow cavity (19) is provided with a solid wax layer (16), a metal cylinder (17) is fixedly arranged inside the hollow cavity (19), and a heat conduction column (18) is arranged inside the metal cylinder (17).

2. A fastening screw for facilitating width compensation as claimed in claim 1, wherein: the locking sleeve (10) is characterized in that elastic protrusions (12) are fixedly arranged on two sides of the locking sleeve (10), and the elastic protrusions (12) are fixedly connected with the locking piece (1) through grooves (11).

3. A fastening screw for facilitating width compensation as claimed in claim 1, wherein: the screw head (8) is fixedly connected with the locking sleeve (10) through an oil-free lubrication sleeve (15), and the number of the oil-free lubrication sleeves (15) is two.

4. A fastening screw for facilitating width compensation as claimed in claim 1, wherein: and an elastic flange (14) is fixedly arranged on the inner wall of the locking sleeve (10).

5. A fastening screw for facilitating width compensation as claimed in claim 1, wherein: the inner thread of the circular deep groove (6) is provided with a sealing cover (7), a cover handle (21) is fixedly arranged above the sealing cover (7), and an annular limiting block (20) is fixedly arranged on the inner wall of the circular deep groove (6).

6. A fastening screw for facilitating width compensation as claimed in claim 1, wherein: the front end face and the rear end face of the screw rod (2) are fixedly provided with through holes (5), and the through holes (5) are provided with a plurality of.