CN218207403U

CN218207403U - High-strength bolt with damping function

Info

Publication number: CN218207403U
Application number: CN202222520958.6U
Authority: CN
Inventors: 何铭杰; 何国梁
Original assignee: Hangzhou Dingmingshang Industry Co ltd
Current assignee: Hangzhou Dingmingshang Industry Co ltd
Priority date: 2022-09-23
Filing date: 2022-09-23
Publication date: 2023-01-03
Anticipated expiration: 2032-09-23

Abstract

The utility model discloses a high strength bolt with shock-absorbing function, the mode that the shock attenuation bolt of adoption passes through the extrusion nut downwards promotes spiro union connection structure and drives the cylinder and move down, until external screw thread ring and internal thread contact, make external screw thread ring and internal thread looks spiro union through rotating the nut, this spiro union in-process continues the extrusion cylinder that downwards moves down, the cylinder moves down and drives metal shrapnel group and moves down, to bar through hole group department, second arc elastic metal piece no longer receives the extrusion and shelters from the elastic deformation that takes place and stretch into in the bar through-hole, second arc elastic metal piece lower extreme expandes outside and promotes first arc elastic metal piece and outwards supports and lean on tightly on the screw inner wall of shock attenuation bolt spiro union, improve the fastness of spiro union, when vibrations take place, elastic deformation all takes place for first arc elastic metal piece and second arc elastic metal piece, carry out elastic buffer to the vibrations power, effectively avoid the not hard up of bolted connection department.

Description

High-strength bolt with damping function

Technical Field

The utility model relates to a bolt technical field, concrete field is a high strength bolt with shock-absorbing function.

Background

At present, the bolt structurally comprises a bolt body, a bolt head and a bolt cap, but when the existing bolt connection is applied to machines with large vibration, the vibration of the machines in operation is large, the phenomenon of bolt connection loosening can often occur, certain potential safety hazards are brought to safety production, and in order to solve the problems, the high-strength bolt with the damping function is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high strength bolt with shock-absorbing function to solve the problem of proposing among the above-mentioned background art.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a high strength bolt with shock-absorbing function, includes shock-absorbing bolt, shock-absorbing bolt includes hollow outer screw rod, be equipped with slidingtype elasticity shock-absorbing structure on the hollow outer screw rod, and leave the clearance between slidingtype elasticity shock-absorbing structure lower extreme and the hollow outer screw rod inner chamber bottom surface, the position is equipped with spiro union connection structure between slidingtype elasticity shock-absorbing structure upper end and the hollow outer screw rod inner wall upper end, spiro union connection structure upper end fixed assembly has the nut.

Preferably, slidingtype elastic damping structure includes the cylinder of sliding plug in hollow outer screw, and leaves the clearance between cylinder lower extreme and the hollow outer screw inner chamber bottom surface, bar through-hole group has evenly vertically been seted up to hollow outer screw outer wall, bar through-hole group comprises four bar through-holes of circumference evenly distributed, and the fixed first arc elastic metal piece that is equipped with of bar through-hole inner wall top surface, the even longitudinal fixation of cylinder outer wall is equipped with metal bullet piece group, metal bullet piece group comprises four second arc elastic metal pieces of circumference evenly distributed, and second arc elastic metal piece uses with the cooperation of first arc elastic metal piece.

Preferably, spiro union connection structure is including the bearing of fixed assembly in slidingtype elasticity shock-absorbing structure upper end, the interior anchor clamps of bearing inner ring face are equipped with the connecting rod, connecting rod upper end fixed assembly is equipped with the nut, hollow outer screw outer wall upper end is seted up there is the internal thread, connecting rod outer wall upper end fixed assembly is equipped with the external screw thread ring, the external screw thread ring uses with the internal screw thread cooperation.

Preferably, the lower end of the damping bolt is in threaded connection with a conical tip, an internal thread hole is formed in the middle of the bottom surface of the hollow outer screw rod, a stud is in threaded connection in the internal thread hole, an alloy conical head is welded at the lower end of the stud, and a rubber layer is fixedly adhered to the upper surface of the alloy conical head.

Preferably, the middle part of the upper surface of the nut is provided with an inner hexagonal groove.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) The mode that the damping bolt that the scheme adopted promotes spiro union connection structure through the downward extrusion nut drives the cylinder and moves down, until external screw thread ring and internal thread contact, make external screw thread ring and internal thread looks spiro union through rotating the nut, this spiro union in-process continues to push down the cylinder and moves down, the cylinder moves down and drives metal shrapnel group and moves down to bar through-hole group department, second arc elastic metal piece no longer receives the extrusion and shelters from the emergence elastic deformation and stretches into in the bar through-hole, second arc elastic metal piece lower extreme expandes outwards and promotes first arc elastic metal piece and outwards tightly supports on the screw inner wall that leans on at the damping bolt spiro union, improve the fastness of spiro union, when vibrations take place, elastic deformation all takes place for first arc elastic metal piece and second arc elastic metal piece, carry out elastic buffer to the vibrations power, effectively avoid the not hard up of bolted connection department.

(2) The slidingtype elasticity shock-absorbing structure that the scheme adopted makes metal elastic sheet group and bar through-hole group position correspond inside and outside through cylinder gliding mode about in hollow outer screw for second arc elastic metal piece can extend and extrude first arc elastic metal piece in the bar through-hole, makes the first arc elastic metal piece outside tightly support and lean on the screw inner wall of shock attenuation bolt spiro union.

(3) The connecting rod among the spiro union connection structure that the scheme adopted rotates and fixes in the cylinder upper end, extrudees the connecting rod transmission strength downwards through the nut, extrudees the cylinder and glides downwards in hollow outer screw, when external thread ring and internal thread contact, rotates the nut and makes external thread ring and the mutual spiro union of internal thread for the nut is fixed on hollow outer screw, constitutes the bolt wholly.

(4) The design that the toper pointed end that the scheme adopted the alloy cone head more conveniently inserts shock attenuation bolt in the threaded hole, plays convenient male supplementary effect to the intensity of improvement shock attenuation bolt lower extreme that can be fine.

(5) The inner hexagonal groove that the scheme adopted is seted up in nut upper surface middle part, and the inner hexagonal groove of here is used for cooperating the inner hexagonal handle and uses for the nut increases and removes the rotation mode, convenient operation.

Drawings

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

FIG. 2 is a schematic cross-sectional view of the structure of the present invention;

fig. 3 is a schematic view of the structure of the cone-shaped tip of the present invention.

In the figure: 1-damping bolt, 11-hollow outer screw rod, 12-sliding elastic damping structure, 121-cylinder, 122-strip through hole group, 123-first arc elastic metal sheet, 124-metal elastic sheet group, 13-screwed connection structure, 131-bearing, 132-connecting rod, 133-internal thread, 134-external thread ring, 14-nut, 15-inner hexagonal groove, 2-conical tip, 21-internal thread hole, 22-stud, 23-alloy conical head and 24-rubber layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a high strength bolt with shock-absorbing function, includes shock bolt 1, and shock bolt 1 includes hollow outer screw rod 11, is equipped with slidingtype elasticity shock-absorbing structure 12 on hollow outer screw rod 11, and leaves the clearance between slidingtype elasticity shock-absorbing structure 12 lower extreme and the 11 inner chamber bottom surfaces of hollow outer screw rod, and the position is equipped with spiro union connection structure 13 between slidingtype elasticity shock-absorbing structure 12 upper end and the 11 inner wall upper ends of hollow outer screw rod, and 13 upper ends fixed assembly of spiro union connection structure have nut 14.

The adopted damping bolt 1 pushes the screw connection structure 13 to drive the cylinder 121 to move downwards in a mode of downwards extruding the screw cap 14 until the external thread ring 134 is contacted with the internal thread 133, the external thread ring 134 is in screw connection with the internal thread 133 by rotating the screw cap 14, the cylinder 121 continues to downwards extrude the cylinder 121 to move downwards in the screw connection process, the cylinder 121 moves downwards to drive the metal elastic sheet group 124 to move downwards to the strip-shaped through hole group 122, the second arc-shaped elastic metal sheet is not blocked by extrusion any more and stretches into the strip-shaped through hole due to elastic deformation, the lower end of the second arc-shaped elastic metal sheet outwards expands to push the first arc-shaped elastic metal sheet 123 to outwards abut against the inner wall of the screw hole tightly screwed with the damping bolt 1, the firmness of screw connection is improved, when vibration occurs, the first arc-shaped elastic metal sheet 123 and the second arc-shaped elastic metal sheet both elastically deform, elastic buffering is performed on vibration force, and looseness of the bolt connection position is effectively avoided.

Specifically, slidingtype elasticity shock-absorbing structure 12 is including sliding the cylinder 121 of pegging graft in hollow outer screw rod 11, and leave the clearance between cylinder 121 lower extreme and the 11 inner chamber bottom surfaces of hollow outer screw rod, bar through-hole group 122 has evenly vertically been seted up to the 11 outer walls of hollow outer screw rod, bar through-hole group 122 comprises four bar through-holes of circumference evenly distributed, and bar through-hole inner wall top surface fixed assembly has first arc elastic metal piece 123, the even vertical fixed assembly of cylinder 121 outer wall has metal elastic metal piece group 124, metal elastic metal piece group 124 comprises four second arc elastic metal pieces of circumference evenly distributed, and second arc elastic metal piece uses with the cooperation of first arc elastic metal piece 123.

The sliding elastic damping structure 12 that adopts makes metal spring sheet group 124 correspond with bar through hole group 122 position inside and outside through cylinder 121 gliding mode about in hollow outer screw rod 11 for the second arc elastic metal piece can extend and extrude first arc elastic metal piece 123 in the bar through hole, makes the first arc elastic metal piece 123 outside tightly support and lean on the screw inner wall of damping bolt 1 spiro union.

Specifically, the screw connection structure 13 includes a bearing 131 fixedly assembled at the upper end of the sliding elastic damping structure 12, a connecting rod 132 is fixedly assembled on the inner annular surface of the bearing 131, a nut 14 is fixedly assembled at the upper end of the connecting rod 132, an internal thread 133 is provided at the upper end of the outer wall of the hollow outer screw rod 11, an external thread ring 134 is fixedly assembled at the upper end of the outer wall of the connecting rod 132, and the external thread ring 134 is matched with the internal thread 133 for use.

The connecting rod 132 of the screw coupling structure 13 is rotatably fixed to the upper end of the cylinder 121, the connecting rod 132 is downwardly pressed by the nut 14 to transmit force, the pressing cylinder 121 slides downwardly in the hollow outer screw rod 11, and when the male screw ring 134 is brought into contact with the female screw 133, the nut 14 is rotated to screw the male screw ring 134 and the female screw 133 into each other, so that the nut 14 is fixed to the hollow outer screw rod 11 to constitute a bolt whole.

Specifically, the lower end of a damping bolt 1 is in threaded connection with a conical tip 2, the middle of the bottom surface of a hollow outer screw rod 11 is provided with an inner threaded hole 21, a stud 22 is in threaded connection in the inner threaded hole 21, the lower end of the stud 22 is welded with an alloy conical head 23, and a rubber layer 24 is fixedly adhered to the upper surface of the alloy conical head 23; the design that the conical tip 2 of adoption adopted alloy conical head 23 more conveniently inserts damping bolt 1 in the threaded hole, plays convenient male supplementary effect to the intensity of improvement damping bolt 1 lower extreme that can be fine.

Specifically, the middle part of the upper surface of the nut 14 is provided with an inner hexagonal groove 15; the inner hexagonal groove 15 that adopts is seted up in the middle part of 14 upper surfaces of nut, and the inner hexagonal groove 15 of here is used for cooperating the inner hexagonal handle and uses for nut 14 increases and moves the rotation mode, convenient operation.

The working principle is as follows: the utility model discloses a damping bolt 1 through the mode of 14 mode promotion spiro union connection structures 13 of downward extrusion nuts drive cylinder 121 move down, until external screw thread ring 134 and internal thread 133 contact, make external screw thread ring 134 and internal thread 133 looks spiro union through rotating nut 14, continue to push down cylinder 121 in this spiro union process and move down, cylinder 121 moves down and drives metal elastic sheet group 124 to move down to bar through-hole group 122 department, second arc elasticity sheetmetal no longer receives the extrusion to shelter from the emergence elastic deformation and stretch into the bar through-hole, second arc elasticity sheetmetal lower extreme expandes to promote first arc elasticity sheetmetal 123 to lean on outwards and lean on the screw inner wall tightly damping bolt 1 spiro union, improve the fastness of spiro union, when vibrations take place, first arc elasticity sheetmetal 123 and second arc elasticity sheetmetal all take place elastic deformation, carry out elastic buffer to the vibrations power, effectively avoid the not hard up of bolted connection department;

the design that the toper pointed end 2 adopted alloy cone head 23 more conveniently inserts shock bolt 1 in the threaded hole, plays convenient male supplementary effect to the intensity of improvement shock bolt 1 lower extreme that can be fine.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a high strength bolt with shock-absorbing function which characterized in that: including shock attenuation bolt (1), shock attenuation bolt (1) is including hollow outer screw rod (11), be equipped with slidingtype elasticity shock-absorbing structure (12) on hollow outer screw rod (11), and leave the clearance between slidingtype elasticity shock-absorbing structure (12) lower extreme and hollow outer screw rod (11) inner chamber bottom surface, the position is equipped with spiro union connection structure (13) between slidingtype elasticity shock-absorbing structure (12) upper end and hollow outer screw rod (11) inner wall upper end, spiro union connection structure (13) upper end fixed assembly has nut (14).

2. The high-strength bolt with the shock-absorbing function according to claim 1, wherein: slidingtype elasticity shock-absorbing structure (12) are including sliding the cylinder (121) of pegging graft in hollow outer screw rod (11), and leave the clearance between cylinder (121) lower extreme and hollow outer screw rod (11) inner chamber bottom surface, bar through-hole group (122) have evenly vertically been seted up to hollow outer screw rod (11) outer wall, bar through-hole group (122) comprise four bar through-holes of circumference evenly distributed, and bar through-hole inner wall top surface fixed assembly has first arc elastic metal piece (123), cylinder (121) outer wall evenly vertically fixed assembly has metal elastic sheet group (124), metal elastic sheet group (124) comprise four second arc elastic metal pieces of circumference evenly distributed, and second arc elastic metal piece and first arc elastic metal piece (123) cooperation use.

3. The high-strength bolt with the shock absorption function according to claim 1, wherein: spiro union connection structure (13) are including fixed bearing (131) of assembling in slidingtype elasticity shock-absorbing structure (12) upper end, the fixed connecting rod (132) that is equipped with of inner ring face in bearing (131), connecting rod (132) upper end fixed mounting has nut (14), internal thread (133) have been seted up to hollow outer screw (11) outer wall upper end, connecting rod (132) outer wall upper end fixed mounting has external screw thread ring (134), external screw thread ring (134) and internal thread (133) cooperation are used.

4. The high-strength bolt with the shock-absorbing function according to claim 1, wherein: damping bolt (1) lower extreme spiro union has toper pointed end (2), internal thread hole (21) have been seted up at hollow outer screw rod (11) bottom surface middle part, threaded connection has double-screw bolt (22) in internal thread hole (21), double-screw bolt (22) lower extreme welding has alloy cone (23), surface paste is fixed with rubber layer (24) on alloy cone (23).

5. The high-strength bolt with the shock-absorbing function according to claim 1, wherein: and the middle part of the upper surface of the screw cap (14) is provided with an inner hexagonal groove (15).