CN207500278U - One kind is anti-to twist damage screw device - Google Patents

Abstract

The utility model is related to the field of screw device more particularly to the technical fields of a kind of novel screw and its screw-driving mechanism.The utility model proposes anti-twist of one kind to damage screw device, device includes the body of screw and elastic component, the body of screw includes head of screw, shank of screw, a block is equipped between the head of screw and shank of screw, H-shaped groove is provided on the upper surface of the head of screw, vertical two sides of groove form two stiles, there are two symmetrical card slots for the bottom setting of two stiles, the card body component includes two symmetrical push rod, the push rod includes push button successively, the upper body of rod, bending section, the lower body of rod, the tongue component includes card key, fixture block, bootstrap block, connecting key and H-shaped tongue.Compared with prior art, the elastic component of the utility model is easy to use, and fixture block is matched by pushing to turn round with card slot, can effective trip bolt, avoid generating and break away, it is easy to use.

Description

One kind is anti-to twist damage screw device

Technical field

The utility model is related to the fields of screw device more particularly to a kind of anti-twist to damage screw device.

Background technology

In today of rapid economic development, the importance of screw never weakens, small to daily to national defense and military greatly Life is all the stage of screw almost everywhere.Cross screw nail and flat mouth screw are that everybody is most common in the prior art Two various screws.But bad screw is often twisted when turning these screws, particularly small-sized screw, since volume has Limit, can not make deeper groove, can be scraped the metal of crisscross grooves corner when screwdriver inside rotates, groove is just damaged It is bad, can not normal pairing screwdriver, finally, firmly groove damage more seriously causes the groove to scrape damage screwdriver completely again Twist motionless screw.Expose the iron of internal layer since external protective layer is destroyed after damaged screw, make screw quickly by corrosion, greatly Affect the service life of screw greatly, also, scrape damage after be difficult back-out again, bring inconvenience to people’s lives.According to Why analysis screwdriver easily scrapes damage metallic channel in the turn of the screw, is the ratio mistake because shared by cross design stress surface Few, flat mouth design is then not sufficiently stable, and excessive eventually lead to of screw local pressure is made to scrape damage.Screw-driving mechanism one in the prior art As using screwdriver, sideslip is easily generated when turning screw, screw is pressed down on simultaneously and turn again, use and its inconvenience. Patent No. ZL200720077397, a kind of entitled Chinese utility model patent of through-hole screw are retrieved in the prior art Document proposes following technical scheme：Including shank of screw, head of screw, the shank of screw is wholely set with head of screw, and described one The shank of screw of body setting and the middle shaft part of head of screw are provided with through-hole, compared with prior art, the through-hole screw of the utility model It is simple in structure, wire is inserted into after the through-hole of screw by the way of welding and is fixed, control is welded, wire is welding It is unlikely to deform in termination process, ensures the performance indicator of duplexer and wave filter, improved production efficiency, but can not solve above-mentioned Technical problem.

Invention content

In view of the deficiencies of the prior art, the purpose of the design is to provide a kind of anti-stubborn damage screw device.The utility model Technical solution is：One kind is anti-to twist damage screw device, and including the body of screw and elastic component, the body of screw includes head of screw, screw Bar, the head of screw are hexagon, and the head of screw is arranged on cylindrical shank of screw upper end, the side setting of the shank of screw There is screw thread, the shank of screw lower end is sharp, and a block, the upper surface of the head of screw are equipped between the head of screw and shank of screw On be provided with H-shaped groove, vertical two sides of groove form two stiles, and there are two right for the bottom setting of two stiles The card slot of title, the height of the card slot are the half of texturearunaperpendicular floor height W, and the width of the card slot is recess width A Half, the elastic component include member bodies and card body component, and the member bodies include hollow screwdriver body, extension bar With tongue component, the screwdriver body upper end closed is being equipped with through-hole close to upper end, and the extension bar matches with through-hole Close, the card body component include two symmetrical push rod, the push rod successively include push button, the upper body of rod, Bending section, the lower body of rod, described push button one end pass through the through hole being arranged on screwdriver body inner cavity and protrude from screwdriver body Outer surface, the bending section are built up in the position of screwdriver body inner cavity upper middle, and the bending section is equipped with perpendicular to two The rotation axis of longitudinal section, the rotation axis are hinged with member bodies where the push rod, and two lower bodies of rod are connected with back Position spring, the tongue component include card key, fixture block, bootstrap block, connecting key and H-shaped tongue, and the H-shaped tongue is fixed in screw Cutter hub lower face and and fit depressions, vertical two sides of the H-shaped tongue be equipped with the first groove being recessed inwardly, institute It states fixture block to be arranged in the first groove, two vertical sides of fixture block are connected with card key, the sheet that the fixture block and card key are formed Body is matched with card slot, and the vertical side of the first groove two is equipped with the recess card slot of the invagination mating with the card key, institute The lower end for stating the lower body of rod is connected by connecting key with fixture block, and position protrudes bootstrap block among the fixture block.

Preferably, the body of screw and elastic component are made of stainless steel.

Preferably, the section of the bootstrap block is arc-shaped, and bottom surface is affixed with fixture block.

Due to the utilization of above-mentioned technical proposal, the utility model has following advantages compared with prior art：

H-shaped screw slots are provided on the upper surface of head of screw described in the utility model can increase forced area and be changed to More stable groove shape slips to reduce screwdriver, and traditional plus screw notch stress surface when turning is two points of the gross area One of.And forced area of the H-shaped screw when turning has reached 3/4ths of the gross area, stress surface under conditions of stress is equal Product is bigger, and suffered pressure is smaller, and institute is more difficult impaired to prevent twisting damage screw.The elastic component of the utility model is easy to use, Its fixture block is matched by pushing to turn round with card slot, can effective trip bolt, avoid generating and break away, it is easy to use.

Description of the drawings

The utility model is further described below in conjunction with attached drawing；

Attached drawing 1 is the stereogram described in the utility model with H-shaped slotted screw；

Attached drawing 2 is the overall schematic of the elastic component of screw；

Attached drawing 3 is the sectional view of the elastic component of screw；

Attached drawing 4 is the partial enlarged view of tongue component；

Attached drawing 5 is the partial enlarged view of bending section；

Attached drawing 6 is card body component overall schematic.

Wherein：1st, the body of screw；12nd, head of screw；2nd, groove；3rd, card slot；4th, channel components；41st, card key；411st, recess card Slot；42nd, fixture block；43rd, bootstrap block；44th, connecting key；45th, H-shaped tongue；46th, the first groove；5th, member bodies；51st, screwdriver body； 6th, extension bar；7th, through-hole；8th, card body component；81st, push is turned round；82nd, the upper body of rod；83rd, bending section；84th, rotation axis；85th, the lower body of rod； 86th, return spring.

Specific embodiment

Specific embodiment one：Attached drawing 1 twists damage screw device to attached drawing 6 to be a kind of anti-, which includes the body of screw 1 and elastic Component, the body of screw 1 include head of screw 12, shank of screw 11, and the head of screw 12 is hexagon, and the head of screw 12 is arranged on Cylindrical 11 upper end of shank of screw, the side of the shank of screw 11 are provided with screw thread, and 11 lower end of shank of screw is sharp, the spiral shell A block 13 is equipped between ailhead 12 and shank of screw 11, H-shaped groove 2 is provided on the upper surface of the head of screw 12, it is described recessed 2 vertical two sides of slot form two stiles, and there are two symmetrical card slot 3, the height of the card slot 3 for the bottom setting of two stiles Degree is the half of 2 vertical bottom face height W of groove, and the width of the card slot 3 is the half of 2 width A of groove, the elastic component packet Member bodies 5 and card body component 8 are included, the member bodies 5 include hollow screwdriver body 51, extension bar 6 and tongue component 4, 51 upper end closed of screwdriver body is being equipped with through-hole 7 close to upper end, and the extension bar 6 is matched with through-hole 7, institute The card body component 8 stated include two symmetrical push rod, the push rod successively include push button 81, the upper body of rod 82, Bending section 83, the lower body of rod 85,81 one end of the push button pass through the through hole being arranged on 51 inner cavity of screwdriver body and protrude from 51 outer surface of screwdriver body, the bending section 83 are built up in the position of 15 inner cavity upper middle of screwdriver body, the bending section 83 are equipped with the rotation axis 84 perpendicular to longitudinal section where two push rod, and the rotation axis 84 is hinged with member bodies 5, and two A lower body of rod 85 is connected with return spring 86, and the tongue component 4 includes card key 41, fixture block 42, bootstrap block 43, connecting key 44 and H-shaped tongue 45, the H-shaped tongue 45 be fixed in 51 lower face of screwdriver body and matched with groove 2, the H-shaped is convex Vertical two sides of slot 45 are equipped with the first groove 46 being recessed inwardly, and the fixture block 42 is arranged in the first groove 46, fixture block The vertical side of two of 42 is connected with card key 41, and the fixture block 42 is matched with card key 41 with card slot 3, first groove 46 Two vertical sides are equipped with the recess card slot 411 of the invagination mating with the card key 41, and the lower end of the lower body of rod 85 passes through company It connects key 44 with fixture block 42 to be connected, the 42 intermediate position of fixture block protrudes bootstrap block 43.

Application method：Screw is put on the object to be fastened first, the H-shaped tongue of elastic component is then directed at screw On H-shaped groove, being pinned push with hand and turned round makes bending section be rotated around rotation axis, and the upper body of rod is drawn close to centre, and the lower body of rod is to both ends It separates, so as to which fixture block be driven to move, fixture block is put in by putting in the card key in recess card slot in card slot, is then twisted using extension bar Tight screw when loosening screw, equally will also make the H-shaped groove on the H-shaped tongue alignment screw of elastic component, then pin and push away Torsion is sent, loosens screw with extension bar.

Specific embodiment two：Except the body of screw 1 and elastic component are made of stainless steel, remaining same specific embodiment One.

Specific embodiment three：Except the section of the bootstrap block 43 is arc-shaped, bottom surface is affixed outer with fixture block 42, remaining is same Specific embodiment one.

Due to the utilization of above-mentioned technical proposal, the present invention has following advantages compared with prior art：

The H-shaped tongue design of the utility model screw is highly stable, avoids making screw local pressure is excessive to cause to scrape damage；By Power area is big, and screw is not easy to be damaged；Elastic component matches stabilization with H-shaped tongue, easily turns screw, easy to use, can To be applied to the large-scale screw in big machinery industry, extend screw service life and avoid what is brought because corrosion or can not back-out due to Trouble.

The above content is combine specific preferred embodiment further detailed description of the utility model, it is impossible to Assert that the specific implementation of the utility model is confined to these explanations.For the ordinary skill of the utility model technical field For personnel, without departing from the concept of the premise utility, several simple deduction or replace can also be made, should all be regarded To belong to the scope of protection of the utility model.

Claims (3)

1. one kind is anti-to twist damage screw device, including the body of screw（1）With elastic component, the body of screw（1）Include head of screw（12）、 Shank of screw（11）, the head of screw（12）For hexagon, the head of screw（12）It is arranged on cylindrical shank of screw（11）Upper end, The shank of screw（11）Side be provided with screw thread, the shank of screw（11）Lower end is sharp, the head of screw（12）With shank of screw （11）Between be equipped with a block（13）, it is characterised in that：The head of screw（12）Upper surface on be provided with H-shaped groove（2）, The groove（2）Vertical two sides form two stiles, and there are two symmetrical card slots for the bottom setting of two stiles（3）, institute State card slot（3）Height be groove（2）The half of vertical bottom face height W, the card slot（3）Width be groove（2）Width A's Half, the elastic component include member bodies（5）With card body component（8）, the member bodies（5）Including hollow screwdriver Body（51）, extension bar（6）With tongue component（4）, the screwdriver body（51）Upper end closed is being equipped with through-hole close to upper end （7）, the extension bar（6）With through-hole（7）It matches, the card body component（8）Including two symmetrical push rod, The push rod includes push button successively（81）, the upper body of rod（82）, bending section（83）, the lower body of rod（85）, the push button （81）One end passes through and is arranged on screwdriver body（51）Through hole on inner cavity simultaneously protrudes from screwdriver body（51）Outer surface, it is described Bending section（83）It is built up in screwdriver body（51）The position of inner cavity upper middle, the bending section（83）Equipped with perpendicular to two institutes The rotation axis of longitudinal section where stating push rod（84）, the rotation axis（84）With member bodies（5）It is hinged, two lower bodies of rod （85）It is connected with return spring（86）, the tongue component（4）Including card key（41）, fixture block（42）, bootstrap block（43）, connecting key （44）With H-shaped tongue（45）, the H-shaped tongue（45）It is fixed in screwdriver body（51）Lower face and and groove（2）It matches, The H-shaped tongue（45）Vertical two sides be equipped with the first groove for being recessed inwardly（46）, the fixture block（42）It is arranged on One groove（46）It is interior, fixture block（42）Two vertical sides be connected with card key（41）, the fixture block（42）With card key（41）With Card slot（3）It matches, first groove（46）Two vertical sides are equipped with and the card key（41）The recess of mating invagination Card slot（411）, the lower body of rod（85）Lower end pass through connecting key（44）With fixture block（42）It is connected, the fixture block（42）In Between position protrude bootstrap block（43）.

2. anti-twist according to claim 1 damages screw device, it is characterised in that：The body of screw（1）It is equal with elastic component It is made of stainless steel.

3. anti-twist according to claim 1 or 2 damages screw device, it is characterised in that：The bootstrap block（43）Section be Arc-shaped, bottom surface and fixture block（42）It is affixed.