CN217713276U

CN217713276U - Length-adjustable stud

Info

Publication number: CN217713276U
Application number: CN202220025506.8U
Authority: CN
Inventors: 雷国华; 雷小华; 张合利
Original assignee: Suzhou Chengtai Precision Hardware Co ltd
Current assignee: Jiangmen Gangfeng High Pressure Pipe Fittings Manufacturing Co ltd
Priority date: 2022-01-06
Filing date: 2022-01-06
Publication date: 2022-11-01
Anticipated expiration: 2032-01-06

Abstract

The utility model discloses a double-screw bolt of adjustable length, include by unthreaded midbody and the column cap of setting at the midbody both ends, the disconnection of midbody middle part is two cylinders, two be provided with between the cylinder and be used for adjusting the adjusting part of space size between two cylinders, adjusting part includes and rotates circle and threaded rod and set up the thread groove of keeping away from column cap one end at the cylinder, the inside of thread groove is provided with the threaded rod, the threaded rod symmetry sets up the both sides at the circle of rotating, and the threaded rod screw thread opposite direction that the symmetry set up, the surface of cylinder is provided with the spacing subassembly that is used for fixed tight adjusting part, through having two the same cylinders between be provided with adjusting part and be provided with the spacing subassembly of fixed tight adjusting part at the surface of cylinder, utilize adjusting part and spacing subassembly's cooperation, thereby realize the regulation to stud length, guaranteed that all can make the double-screw bolt insert inside corresponding jack under the different situation.

Description

Length-adjustable stud

Technical Field

The utility model relates to a fastening connection spare technical field especially relates to a double-screw bolt of adjustable length.

Background

Stud refers to a cylindrical fastener with threads on both ends. The method is widely applied to electric power, chemical engineering, oil refining, valves, railways, bridges, steel structures, steam friction fittings, machinery, boiler steel structures, tower cranes, large-span steel structures, large buildings and the like;

if the utility model discloses a double-end stud that the grant bulletin number is CN207740320U, it not only has easy dismouting, reduces screw end stress and concentrates on, reasonable in design moreover, simple structure, long service life, the length of current double-end stud is mostly unadjustable, and the degree of depth of jack is different sometimes, just can't guarantee that double-end stud length is suitable.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides a double-screw bolt with adjustable length.

In order to solve the technical problem, the utility model provides a following technical scheme: a stud with adjustable length comprises a threadless intermediate body and column heads arranged at two ends of the intermediate body, wherein the middle of the intermediate body is broken into two columns, an adjusting assembly used for adjusting the size of a gap between the two columns is arranged between the two columns, the adjusting assembly comprises a rotating ring, a threaded rod and a threaded groove formed in one end, far away from the column heads, of the columns, the threaded rod is arranged inside the threaded groove, the threaded rod is symmetrically arranged at two sides of the rotating ring, the thread directions of the symmetrically arranged threaded rod are opposite, and a limiting assembly used for fixing the adjusting assembly is arranged on the outer surface of each column;

as a preferred technical scheme of the utility model, the limiting component comprises a cylindrical groove, the cylindrical groove is arranged on the outer surface of the cylindrical body, the outer surface of the cylindrical groove is movably provided with a lantern ring, the lantern ring can slide in the cylindrical groove, the outer surface of the lantern ring is provided with a first through hole, one end of the outer surface of the threaded rod, which is far away from the rotating ring, is provided with a second through hole in a penetrating way, a limiting rod is arranged in the second through hole, and the outer surface of the cylindrical groove is provided with a sliding groove;

as a preferred technical scheme of the utility model, a magnetic sheet is arranged at the top end of the limiting rod;

as a preferred technical scheme of the utility model, the outer surface of the lantern ring is provided with a groove, the groove is concentric with the first through hole, and the inner surface size of the groove is larger than that of the first through hole;

as a preferred technical scheme of the utility model, the rotating ring adopts a gear-shaped structure, and the outer surface of the rotating ring is provided with a protective film;

compared with the prior art, the utility model discloses the beneficial effect that can reach is:

through be provided with between having two the same cylinders and be used for adjusting the adjusting part of space size between two cylinders and be provided with the spacing subassembly of fixed tight adjusting part at the surface of cylinder, utilize adjusting part and spacing subassembly's cooperation to the realization is to the regulation of screw length, has guaranteed that all can make the double-screw bolt insert inside corresponding jack under the different situation.

Drawings

Fig. 1 is a schematic perspective view of a stud according to the present invention;

fig. 2 is a schematic structural diagram of the adjusting assembly of the present invention;

fig. 3 is a schematic structural view of the collar of the present invention;

fig. 4 is a schematic structural view of the limiting rod of the present invention;

wherein: 1. a cylinder; 2. a column cap; 3. an adjustment assembly; 31. rotating the ring; 32. a threaded rod; 4. a limiting component; 41. a cylinder groove; 42. a collar; 43. a first through hole; 44. a second through hole; 45. a limiting rod; 451. a magnetic sheet; 46. a groove; 47. a chute.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the functions of the invention easy to understand, the invention is further explained below with reference to the specific embodiments, but the following embodiments are only the preferred embodiments of the invention, not all. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative work belong to the protection scope of the present invention. The experimental methods in the following examples are conventional methods unless otherwise specified, and materials, reagents and the like used in the following examples are commercially available unless otherwise specified.

Examples

Please refer to fig. 1 and fig. 2, the utility model provides a stud with adjustable length, include by unthreaded midbody and the column cap 2 of setting at the midbody both ends, the disconnection is two cylinders 1 in the middle part of the midbody, be provided with between two cylinders 1 and be used for adjusting the adjusting part 3 of space size between two cylinders 1, adjusting part 3 includes rotating ring 31 and threaded rod 32 and sets up the thread groove in the cylinder 1 one end far away from the column cap 2, the inside of thread groove is provided with threaded rod 32, threaded rod 32 symmetry sets up in the both sides of rotating ring 31, and threaded rod 32 screw direction that the symmetry set up is opposite, can make the threaded rod 32 that the symmetry set up simultaneously revolve with the thread groove in the cylinder 1 that the symmetry carries on the closure through rotating ring 31, the surface of cylinder 1 is provided with the spacing subassembly 4 that is used for fixing tight adjusting part 3;

as a further implementation manner of this embodiment, as shown in fig. 1 to 4, the position limiting component 4 includes a cylinder groove 41, the cylinder groove 41 is opened on the outer surface of the cylinder 1, a collar 42 is movably disposed on the outer surface of the cylinder groove 41, the collar 42 can slide in the cylinder groove 41, a first through hole 43 is disposed on the outer surface of the collar 42, a second through hole 44 is disposed through an end of the outer surface of the threaded rod 32, which is away from the rotating ring 31, a position limiting rod 45 is disposed inside the second through hole 44, and a sliding slot 47 is disposed on the outer surface of the cylinder groove 41, and is used for inserting the position limiting rod 45 into the second through hole 44 when passing through any position of the outer surface of the cylinder 1;

as a further embodiment of the present embodiment, as shown in fig. 4, a magnetic sheet 451 is provided at the tip of the stopper rod 45;

after the magnetic sheet 451 is arranged at the top end of the limiting rod 45, the limiting rod 45 can be taken out by adopting a metal block, so that the whole body of the stud is changed again;

as a further embodiment of this embodiment, as shown in fig. 3, the outer surface of the collar 42 is provided with a groove 46, and the groove 46 is concentric with the first through hole 43, and the inner surface of the groove 46 has a larger size than the inner surface of the first through hole 43;

the groove 46 is designed, so that the top end of the limiting rod 45 is attached to the outer surface of the sleeve ring 42, and the situation that the stud is clamped due to overlarge outside when being screwed is avoided;

as a further embodiment of the present embodiment, as shown in fig. 2, the rotating ring 31 adopts a gear-like structure, and the outer surface of the rotating ring 31 is provided with a protective film;

the rotating ring 31 is in a gear-shaped structure so as to facilitate the adjustment of the length of the stud by a user, and the protective film is arranged on the outer surface of the rotating ring 31 so as to prevent the fingers of the user from being injured;

the working principle is as follows:

when the whole length of double-screw bolt needs to be changed, stir and turn circle 31 and make the threaded rod 32 that turns circle 31 and drive both ends carry out opposite direction and close soon, clearance between two cylinders 1 increases thereupon, stop when stirring required length, then stir lantern ring 42, make first through-hole 43 align with second through-hole 44, place the inside of second through-hole 44 with gag lever post 45 at last, thereby realize the regulation to the double-screw bolt length, guaranteed that all can make the double-screw bolt insert inside corresponding jack under different situation.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature "on," "above" and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The foregoing shows and describes the basic principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A double-screw bolt with adjustable length comprises a non-threaded middle body and column heads (2) arranged at two ends of the middle body, and is characterized in that: the disconnection of midbody middle part is two cylinders (1), two be provided with between cylinder (1) and be used for adjusting regulation assembly (3) of space size between two cylinders (1), regulation assembly (3) are including rotating circle (31) and threaded rod (32) and set up the thread groove of keeping away from column cap (2) one end in cylinder (1), the inside of thread groove is provided with threaded rod (32), threaded rod (32) symmetry sets up in the both sides of rotating circle (31), and threaded rod (32) the opposite direction of thread that the symmetry set up, the surface of cylinder (1) is provided with spacing subassembly (4) that are used for fixed tight regulation assembly (3).

2. An adjustable length stud according to claim 1, wherein: spacing subassembly (4) include column casing groove (41), the surface at cylinder (1) is seted up in column casing groove (41), the surface activity of column casing groove (41) is provided with lantern ring (42), and lantern ring (42) can slide in the inside of column casing groove (41), first through-hole (43) have been seted up to the surface of lantern ring (42), the one end department that the surface of threaded rod (32) kept away from rotating ring (31) runs through and has seted up second through-hole (44), the inside of second through-hole (44) is provided with gag lever post (45), the surface of column casing groove (41) is provided with spout (47).

3. An adjustable length stud according to claim 2, wherein: the top end of the limiting rod (45) is provided with a magnetic sheet (451).

4. An adjustable length stud according to claim 2, wherein: the outer surface of the lantern ring (42) is provided with a groove (46), the groove (46) is concentric with the first through hole (43), and the size of the inner surface of the groove (46) is larger than that of the inner surface of the first through hole (43).

5. An adjustable length stud according to claim 1, wherein: the rotating ring (31) is of a gear-shaped structure, and a protective film is arranged on the outer surface of the rotating ring (31).