CN217440478U

CN217440478U - Split type combined double-screw bolt

Info

Publication number: CN217440478U
Application number: CN202220025507.2U
Authority: CN
Inventors: 雷国华; 雷小华; 张合利
Original assignee: Xianyang Juli Petroleum Machineries Manufacture Co ltd
Current assignee: Xianyang Juli Petroleum Machineries Manufacture Co ltd
Priority date: 2022-01-06
Filing date: 2022-01-06
Publication date: 2022-09-16
Anticipated expiration: 2032-01-06

Abstract

The utility model discloses a split type combined double-screw bolt, include the polished rod, be the symmetry and set up in the screw thread column cap of polished rod both sides and the nut that fits the screw thread column cap outside soon, be provided with between nut and the screw thread column cap and be used for preventing that nut and screw thread column cap from taking place not hard up locking mechanism, be provided with coupling mechanism between screw thread column cap and the polished rod. The utility model can ensure the stability of the stud when in use through the arranged anti-loosening component, and the limiting rod and the nut form a whole through the limiting part, so that the nut can not rotate relative to the threaded column head, thereby preventing the looseness caused by the rotation of the nut and the threaded column head when in use and improving the stability of the connection between the nut and the threaded column head; just this practicality wholly adopts split type structure for the double-screw bolt has the replaceability, and when using, when having one in polished rod and the screw thread column cap to damage, all can change it.

Description

Split type combined double-screw bolt

Technical Field

The utility model relates to a double-screw bolt X field especially relates to a split type combined double-screw bolt.

Background

The stud is a cylindrical fastener with threads at two ends, and is widely applied to electric power, chemical engineering, oil refining, valves, railways, bridges, steel structures, steam friction accessories, machinery, boiler steel structures, hoisting towers, large-span steel structures, large buildings and the like.

When the stud is used, a locking measure is not generally arranged between the nut and the stud head, and the nut is easy to rotate relative to the stud head due to external vibration, so that the looseness phenomenon is easy to occur, and the instability of the joint is caused.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides a split type combined stud can solve the technical problem that is easy to loose between nut and stud head.

In order to solve the technical problem, the utility model provides a following technical scheme: the utility model provides a split type combined double-screw bolt, includes the polished rod, be the symmetry and set up in the screw thread column cap of polished rod both sides and the nut that fits the screw thread column cap outside soon, be provided with between nut and the screw thread column cap and be used for preventing that nut and screw thread column cap from taking place not hard up locking mechanism, be provided with coupling mechanism between screw thread column cap and the polished rod.

As a preferred technical scheme of the utility model, locking mechanism includes spacing through-hole, gag lever post and locking Assembly, the tail end of screw column cap is seted up to spacing through-hole, the gag lever post runs through in the inside of screw column cap and be clearance fit with spacing through-hole, locking Assembly connects between gag lever post and nut.

As a preferred technical scheme of the utility model, locking Assembly includes through-hole, locating part and the screw hole of gag lever post tail end, the surface at the nut is seted up to the screw hole, the locating part runs through in the through-hole of gag lever post, and in tail end screw in threaded hole.

As a preferred technical scheme of the utility model, coupling mechanism is including connecting piece, draw-in groove, alignment subassembly and fixed subassembly, the both ends at the polished rod are fixed to the connecting piece, the draw-in groove is seted up inside the screw thread column cap, it sets up between the outside of connecting piece to align the subassembly, fixed subassembly is connected between screw thread column cap and connecting piece.

As a preferred technical scheme of the utility model, the alignment subassembly includes spacing key and the keyway that corresponds with the spacing key, the spacing key is the symmetric distribution in the both sides of connecting piece, keyway connection is in the outside of spacing key, and sets up in the inside of screw thread column cap.

As a preferred technical scheme of the utility model, fixed subassembly is including mounting, fixed screw and fixing hole, the surface at the connecting piece is seted up to fixed screw, fixing hole sets up the surface at the screw thread column cap, and corresponds with fixed screw, the mounting runs through in fixing hole's inside and tail end screw in fixing hole.

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

the utility model can ensure the stability of the stud when in use through the arranged anti-loosening component, and the limiting rod and the nut form a whole through the limiting part, so that the nut can not rotate relative to the threaded column head, thereby preventing the looseness caused by the rotation of the nut and the threaded column head when in use and improving the stability of the connection between the nut and the threaded column head; just this practicality wholly adopts split type structure for the double-screw bolt has the replaceability, and when using, when having one in polished rod and the screw thread column cap to damage, all can change it.

Drawings

FIG. 1 is an external view of the present invention;

FIG. 2 is an exploded view of the anti-loosening assembly of the present invention;

FIG. 3 is an exploded view of the internal connection structure of the present invention;

FIG. 4 is a schematic view of the internal connection structure between the threaded column cap and the connecting member of the present invention;

wherein: 1. a polish rod; 2. a threaded stud; 21. a limiting through hole; 22. a fixing through hole; 23. a card slot; 24. a keyway; 3. a nut; 31. a threaded hole; 4. a limiting rod; 5. a limiting member; 6. a connecting member; 61. fixing screw holes; 62. a limiting key; 7. and a fixing member.

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 procedures in the following examples were carried out in a conventional manner unless otherwise specified, and materials, reagents and the like used in the following examples were commercially available unless otherwise specified.

Examples

Referring to fig. 1 and 2, the present invention provides a split type combined stud, which comprises a polish rod 1, a threaded column head 2 symmetrically disposed at two sides of the polish rod 1, and a nut 3 screwed outside the threaded column head 2, wherein a locking mechanism for preventing the nut 3 from loosening with the threaded column head 2 is disposed between the nut 3 and the threaded column head 2, the locking mechanism comprises a limiting through hole 21, a limiting rod 4, and a locking assembly, the limiting through hole 21 is disposed at the tail end of the threaded column head 2, the limiting rod 4 penetrates through the interior of the threaded column head 2 and is in clearance fit with the limiting through hole 21, the locking assembly is connected between the limiting rod 4 and the nut 3, the locking assembly comprises a through hole at the tail end of the limiting rod 4, a limiting member 5 and a threaded hole 31, the threaded hole 31 is disposed on the surface of the nut 3, the limiting member 5 penetrates through the through hole of the limiting rod 4, and the tail end is screwed into the threaded hole 31, the limiting piece 5 is in threaded connection with the threaded holes 31, the openings at the two ends of the limiting rod 4 correspond to the positions of the two groups of threaded holes 31 with the farthest distance, the limiting piece 5 is used for connecting the limiting rod 4 with the nut 3, so that the nut 3 and the limiting rod 4 form a linkage relation, and the limiting rod 4 is fixed in the limiting through hole 21, so that the nut 3 cannot rotate relative to the threaded column head 2;

when the anti-loosening nut is used, the nut 3 is screwed in along the direction of entering the threaded column head 2, the nut 3 is screwed to a proper position, the limiting rod 4 is inserted into the limiting through hole 21, the threaded hole 31 in the surface of the nut 3 is aligned, the limiting pieces 5 are inserted into the through holes at two ends of the limiting rod 4, the top ends of the limiting pieces 5 adopt anti-skidding threads, the limiting pieces 5 are screwed into the threaded hole 31, the positions of the nut 3 and the limiting rod 4 are fixed, and the nut 3 is prevented from loosening;

referring to fig. 3 and 4, a connection mechanism is disposed between the threaded column head 2 and the polish rod 1, the connection mechanism includes a connection element 6, a locking groove 23, an alignment assembly and a fixing assembly, the connection element 6 is fixed at two ends of the polish rod 1, the locking groove 23 is disposed inside the threaded column head 2, the alignment assembly is disposed between the outer sides of the connection element 6, the alignment assembly includes a position-limiting key 62 and a key groove 24 corresponding to the position-limiting key 62, the position-limiting key 62 is symmetrically distributed at two sides of the connection element 6, the key groove 24 is connected to the outer side of the position-limiting key 62 and disposed inside the threaded column head 2, the fixing assembly is connected between the threaded column head 2 and the connection element 6, the fixing assembly includes a fixing element 7, a fixing screw hole 61 and a fixing through hole 22, the fixing screw hole 61 is disposed on the surface of the connection element 6, the fixing through hole 22 is disposed on the surface of the threaded column head 2 and corresponds to the fixing screw hole 61, the fixing element 7 penetrates through the inside the fixing through hole 22 and screws into the tail end fixing screw hole 61, the threaded column head 2 forms a detachable structure with the connecting piece 6 through the fixing piece 7, the position of the connecting piece 6 entering the clamping groove 23 is limited by utilizing the characteristic that the limiting key 62 can only slide along the key groove 24, the position between the connecting piece 6 and the threaded column head 2 is limited by utilizing the fixing piece 7, and the fixing piece 7 is connected with the fixing screw hole 61 through threads and has detachability, so that the threaded column head 2 and the polished rod 1 have detachability, and the polished rod 1 or the threaded column head 2 can be conveniently replaced when damaged;

the fixing screw holes 61 on two sides of the connecting piece 6 are aligned with the key groove 24, the fixing screw holes 61 slide in along the key groove 24, the connecting piece 6 is inserted into the clamping groove 23, after the connecting piece is inserted, the fixing screw holes 61 on the surface of the threaded column head 2 are aligned with the fixing through holes 22, the fixing piece 7 is inserted into the fixing through holes 22, the fixing piece 7 is rotated along the direction of screwing in the fixing screw holes 61, the fixing piece 7 is screwed in the fixing screw holes 61, the positions of the connecting piece 6 and the threaded column head 2 are fixed, when the polished rod 1 or the threaded column head 2 is damaged and needs to be replaced, the threaded column head 2 and the polished rod 1 can be separated by screwing out the fixing piece 7, and a new element can be replaced.

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 being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely 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. The utility model provides a split type combined stud, includes polished rod (1), is the symmetry and sets up in screw thread column cap (2) of polished rod (1) both sides and the nut (3) that fits screw thread column cap (2) outside soon, its characterized in that: a locking mechanism used for preventing the nut (3) and the threaded column head (2) from loosening is arranged between the nut (3) and the threaded column head (2), and a connecting mechanism is arranged between the threaded column head (2) and the polished rod (1).

2. The split compound stud according to claim 1, wherein: locking mechanism includes spacing through-hole (21), gag lever post (4) and locking Assembly, the tail end in screw column head (2) is seted up in spacing through-hole (21), gag lever post (4) run through in the inside of screw column head (2) and be clearance fit with spacing through-hole (21), locking Assembly connects between gag lever post (4) and nut (3).

3. The split combination stud according to claim 2, wherein: the locking assembly comprises a through hole at the tail end of the limiting rod (4), a limiting part (5) and a threaded hole (31), the threaded hole (31) is formed in the surface of the nut (3), the limiting part (5) penetrates through the through hole of the limiting rod (4), and the tail end is screwed into the threaded hole (31).

4. The split compound stud according to claim 1, wherein: coupling mechanism is including connecting piece (6), draw-in groove (23), aligns subassembly and fixed subassembly, the both ends at polished rod (1) are fixed in connecting piece (6), inside screw thread column cap (2) is seted up in draw-in groove (23), it sets up between the outside of connecting piece (6) to align the subassembly, fixed subassembly is connected between screw thread column cap (2) and connecting piece (6).

5. The split combination stud according to claim 4, wherein: the alignment assembly comprises a limiting key (62) and a key groove (24) corresponding to the limiting key (62), the limiting key (62) is symmetrically distributed on two sides of the connecting piece (6), and the key groove (24) is connected to the outer side of the limiting key (62) and is arranged in the threaded column head (2).

6. The split combination stud according to claim 4, wherein: the fixing assembly comprises a fixing piece (7), a fixing screw hole (61) and a fixing through hole (22), the fixing screw hole (61) is arranged on the surface of the connecting piece (6), the fixing through hole (22) is arranged on the surface of the thread column head (2) and corresponds to the fixing screw hole (61), and the fixing piece (7) penetrates through the fixing screw hole (61) in the fixing through hole (22) and the tail end screwed in.