CN217558740U - Double-bolt-head bolt of anti-skid thread - Google Patents

Abstract

The utility model belongs to the technical field of antiskid silk bolt. Especially, two bolt head bolts of anti-skidding silk, including the screw rod, the fixer is installed respectively at the screw rod both ends, fixer surface threaded connection has nut one, the fixer is including two fixed covers, the internal thread has been seted up to fixed cover inner wall, external screw thread has been seted up to fixed cover circumference outer wall, fixed cover outer wall has set firmly the spacing ring, fixes one of them fixed cover card on the screw rod surface earlier for fixed cover is close to the mechanical structure surface, then fixes fixed cover card on the screw rod surface with another, on the external screw thread of two fixed cover surfaces of its screw in through rotating nut one, fixes two fixed covers together, through the corner sleeve, makes two fixed covers screw in to the screw rod middle part precession, thereby can reach quick fixed effect, through rotating nut one, lift it off from two fixed sheathes, separately two fixed covers, be convenient for take off two fixed covers from the screw rod, avoid the screw rod to appear skidding silk.

Description

Double-bolt-head bolt of anti-skid thread

Technical Field

The utility model relates to an antiskid silk bolt technical field especially relates to an antiskid silk's two bolt head bolts.

Background

The bolt is a fastener consisting of a head part and a screw rod, needs to be matched with a nut for use, and is used for fastening and connecting two parts with through holes. The bolts are divided according to the stress mode of connection: common and reamed for hole; according to the shape of the head: hexagonal, round, square, countersunk, etc.; of these, hex heads are the most common and generally countersunk heads are used where the connection is required.

The most common place of bolt use is on mechanical equipment, different positions on the mechanical equipment, used bolt length also is different, when using longer bolt, owing to need the nut on the long-time rotatory bolt, and the last bolt inslot wall of mechanical equipment often can be under the influence of grease, assist dust and metal debris, can lead to the bolt nut to lead to the fact the damage to the screw thread on bolt surface when rotatory nut, thereby the phenomenon of smooth silk appears, lead to the nut to be difficult to take off, for this reason, we provide a double-bolt head bolt of anti-skidding silk.

SUMMERY OF THE UTILITY MODEL

Based on current anti-skidding silk bolt technical problem, the utility model provides an anti-skidding silk's two bolt head bolts.

The utility model provides a double-bolt head bolt of an anti-skid thread, which comprises a screw rod, wherein two ends of the screw rod are respectively provided with a fixer, and the outer surface of the fixer is in threaded connection with a first nut;

the fixer is including two fixed covers, the internal thread has been seted up to fixed cover inner wall, the external screw thread has been seted up to fixed cover circumference outer wall, fixed cover outer wall has set firmly the spacing ring, fixed cover top has set firmly the angle cover.

Preferably, the screw rod is matched with the internal thread, and the first nut is matched with the external thread.

Through above-mentioned technical scheme, the screw rod can with fixed cover inboard threaded connection, nut one can with fixed cover surface threaded connection.

Preferably, the first nut is in contact with the limiting ring, and the outer walls of the two corner sleeves are combined to form a hexagonal shape.

Through above-mentioned technical scheme, the spacing ring can carry on spacingly to nut one, makes up two angle sleeves, and the operating personnel that can be convenient for rotates two angle sleeves through the spanner, drives fixed cover and rotates.

Preferably, a side plate is fixedly arranged at the top of one of the corner sleeves, a barrel sleeve is fixedly arranged at the top of the other corner sleeve, and the side plate is matched with a notch in the outer wall of the barrel sleeve.

Through above-mentioned technical scheme, including can wrap up screw rod tip through curb plate and barrel casing to the surperficial screw rod exposes the end and adheres to dust and metal debris to avoid fixed cover to cause screw rod surface thread to damage when rotating, and smooth silk appears.

Preferably, the barrel casing inner wall has set firmly the sliding sleeve, sliding sleeve circumference outer wall is annular symmetrical structure and has seted up two spouts, sliding sleeve inner wall top has set firmly the spring, the spring bottom has set firmly the connecting rod, connecting rod circumference outer wall is annular symmetrical structure and has set firmly two sliders, the connecting rod bottom rotates and is connected with the fixture block.

Through above-mentioned technical scheme, can drive curb plate and barrel casing respectively when two fixed covers remove and remove, at this moment, the connecting rod slides to the sliding sleeve is inside, produces the extrusion to the spring simultaneously, under the effect of spring force, can produce reverse pulling force to two fixed covers to make the connection of fixed cover more stable.

Preferably, the connecting rod is connected with the inner wall of the sliding sleeve in a sliding manner, the sliding block is connected with the sliding groove in a sliding manner, and the clamping block is clamped and matched with the top of the screw rod.

Through above-mentioned technical scheme, through setting up the fixture block to through with fixture block and screw rod top joint, when making fixed cover drive sliding sleeve rotate, can reduce connecting rod and screw rod top friction, protect the screw rod top.

The utility model provides a beneficial effect does:

1. firstly, fix the cover card on the screw rod surface with one of them, make fixed cover be close to the mechanical structure surface, then fix the cover card on the screw rod surface with another, make two fixed covers laminate each other, through putting one set of nut on two fixed sheathes, on the external screw thread on two fixed cover surfaces of its screw in through rotating nut one, thereby fix two fixed covers together, rotate the angle cover of two mutual laminatings through the spanner, make two fixed covers precession to the screw rod middle part, thereby can reach quick fixed effect, when dismantling, through rotating nut one, lift it off from two fixed sheathes, separate two fixed covers this moment, thereby be convenient for take off two fixed covers from the screw rod, dismantle the screw rod, avoid the screw rod smooth silk to appear.

2. Including can wrap up the screw rod tip through curb plate and barrel casing to the surperficial screw rod exposes the end and adheres to dust and metal piece, thereby avoids fixed cover to cause screw rod surface thread to damage when rotating, and the smooth silk appears.

3. Can drive curb plate and barrel casing respectively when two fixed covers remove, at this moment, the connecting rod slides to the sliding sleeve is inside, produces the extrusion to the spring simultaneously, under the effect of spring force, can produce reverse pulling force to two fixed covers to make the connection of fixed cover more stable.

Drawings

Fig. 1 is a schematic view of an overall structure of a double-bolt-head bolt of an anti-skid thread provided by the present invention;

fig. 2 is an internal schematic view of a double-bolt-head bolt of the anti-skid thread provided by the present invention;

fig. 3 is a schematic view of a partially disassembled structure of a bolt with double bolt heads of an anti-skid thread provided by the present invention;

fig. 4 is the internal structure schematic diagram of the double-bolt-head bolt sliding sleeve of the anti-skid thread provided by the utility model.

In the figure: 1. a screw; 2. a holder; 21. fixing a sleeve; 22. an internal thread; 23. an external thread; 24. a limiting ring; 25. a corner sleeve; 3. a first nut; 4. a side plate; 5. a barrel sleeve; 6. a sliding sleeve; 7. a chute; 8. a spring; 9. a connecting rod; 10. a slider; 11. and (7) clamping blocks.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-4, the present invention provides a technical solution:

the utility model provides a double-bolt head bolt of antiskid silk, includes screw rod 1, and fixer 2 is installed respectively at 1 both ends of screw rod, and 2 surface threaded connection of fixer have a nut 3, and fixer 2 has internal thread 22 including two fixed cover 21, fixed cover 21 inner wall, and external screw thread 23 has been seted up to fixed cover 21 circumference outer wall, and fixed cover 21 outer wall has set firmly spacing ring 24, and fixed cover 21 top has set firmly the horn cover 25.

Specifically, the screw 1 is matched with the internal thread 22, the nut one 3 is matched with the external thread 23, the screw 1 can be in threaded connection with the inner side of the fixed sleeve 21, and the nut one 3 can be in threaded connection with the outer surface of the fixed sleeve 21.

Further, the first nut 3 is in contact with the limiting ring 24, the outer walls of the two corner sleeves 25 are combined to form a hexagonal shape, the limiting ring 24 can limit the first nut 3, the two corner sleeves 25 are combined, an operator can rotate the two corner sleeves 25 through a wrench conveniently, and the fixing sleeve 21 is driven to rotate.

Still further, a side plate 4 is fixedly arranged at the top of one of the corner sleeves 25, a barrel sleeve 5 is fixedly arranged at the top of the other corner sleeve 25, the side plate 4 is matched with a notch in the outer wall of the barrel sleeve 5, the end part of the screw rod 1 can be wrapped in the barrel sleeve 5 through the side plate 4, so that dust and metal debris are attached to the exposed end of the screw rod 1, and the phenomenon that the fixed sleeve 21 causes damage to the surface thread of the screw rod 1 when rotating and sliding occurs is avoided.

Further, 5 inner walls of barrel casing have set firmly sliding sleeve 6, 6 circumference outer walls of sliding sleeve are annular symmetrical structure and have seted up two spouts 7, 6 inner wall tops of sliding sleeve have set firmly spring 8, spring 8 bottom has set firmly connecting rod 9, connecting rod 9 circumference outer wall is annular symmetrical structure and has set firmly two sliders 10, connecting rod 9 bottom is rotated and is connected with fixture block 11, can drive curb plate 4 and barrel casing 5 respectively when two fixed cover 21 remove, this moment, connecting rod 9 slides to 6 inside sliding of sliding sleeve, produce the extrusion to spring 8 simultaneously, under the effect of spring 8 elasticity, can produce reverse pulling force to two fixed cover 21, thereby make the connection of fixed cover 21 more stable.

It should be noted that, the connecting rod 9 is slidably connected to the inner wall of the sliding sleeve 6, the slider 10 is slidably connected to the sliding groove 7, the clamping block 11 is in clamping fit with the top of the screw rod 1, and by arranging the clamping block 11 and clamping the clamping block 11 to the top of the screw rod 1, when the fixing sleeve 21 drives the sliding sleeve 6 to rotate, the friction between the connecting rod 9 and the top of the screw rod 1 can be reduced, so as to protect the top of the screw rod 1.

The working principle is as follows: firstly, fix one of them fixed cover 21 card on the screw rod 1 surface earlier, make fixed cover 21 be close to the mechanical structure surface, and block 11 card that barrel casing 5 is inside into the draw-in groove of screw rod 1 tip, then fix cover 21 card on the screw rod 1 surface with another, make two fixed covers 21 laminate each other, at this moment, curb plate 4 and barrel casing 5 buckle each other, including wrapping up screw rod 1 tip, two barrel casings 5 laminate each other simultaneously, through overlapping nut one 3 on two fixed covers 21, screw it into two external screw threads 23 on fixed cover 21 surface through rotating nut one 3, thereby fix two fixed covers 21 together, rotate two angle cover 25 of laminating each other through the spanner, make two fixed covers 21 screw rod 1 middle part precession, thereby reach fixed effect, can drive curb plate 4 and barrel casing 5 respectively when two fixed covers 21 remove, at this moment, connecting rod 9 slides to the inside sliding sleeve 6, produce the extrusion to spring 8 simultaneously, under the effect of spring 8 elasticity, can produce reverse pulling force to two fixed covers 21, thereby make the connection of fixed cover 21 more stable, drive two sliders 10 to rotate along the inner wall 7 simultaneously, when dismantling, will separate fixed cover 21 from two screw rods, thereby take off the screw rod 1 from the screw rod 21, thereby take two fixed covers 1, it to take off.

The above, only be the embodiment of the preferred of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, which are designed to be replaced or changed equally, all should be covered within the protection scope of the present invention.

Claims (6)

1. The utility model provides a two bolt head bolts of antiskid silk, includes screw rod (1), its characterized in that: two ends of the screw rod (1) are respectively provided with a fixer (2), and the outer surface of the fixer (2) is in threaded connection with a first nut (3);

fixer (2) are including two fixed covers (21), internal thread (22) have been seted up to fixed cover (21) inner wall, external screw thread (23) have been seted up to fixed cover (21) circumference outer wall, fixed cover (21) outer wall has set firmly spacing ring (24), fixed cover (21) top has set firmly angle cover (25).

2. A double-bolt-head bolt of an anti-slip thread according to claim 1, characterized in that: the screw rod (1) is matched with the internal thread (22), and the first nut (3) is matched with the external thread (23).

3. A double-bolt-head bolt of an anti-slip thread according to claim 1, characterized in that: the first nut (3) is in contact with the limiting ring (24), and the outer walls of the two corner sleeves (25) are combined to form a hexagonal shape.

4. A double-bolt-head bolt of an anti-slip thread according to claim 1, characterized in that: the top of one of the corner sleeves (25) is fixedly provided with a side plate (4), the top of the other corner sleeve (25) is fixedly provided with a barrel sleeve (5), and the side plate (4) is matched with a notch in the outer wall of the barrel sleeve (5).

5. A double bolt head bolt of antiskid silk according to claim 4, characterized in that: the inner wall of the barrel sleeve (5) is fixedly provided with a sliding sleeve (6), the circumferential outer wall of the sliding sleeve (6) is of an annular symmetrical structure and is provided with two sliding grooves (7), the top of the inner wall of the sliding sleeve (6) is fixedly provided with a spring (8), the bottom of the spring (8) is fixedly provided with a connecting rod (9), the circumferential outer wall of the connecting rod (9) is of an annular symmetrical structure and is fixedly provided with two sliding blocks (10), and the bottom of the connecting rod (9) is rotatably connected with a clamping block (11).

6. A double bolt head bolt of antiskid silk according to claim 5, characterized in that: connecting rod (9) and sliding sleeve (6) inner wall sliding connection, slider (10) and spout (7) sliding connection, fixture block (11) and screw rod (1) top joint cooperation.

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