CN113931912A

CN113931912A - Fastening assembly

Info

Publication number: CN113931912A
Application number: CN202010677407.3A
Authority: CN
Inventors: 张大川
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-13
Filing date: 2020-07-13
Publication date: 2022-01-14

Abstract

The invention discloses a fastening assembly, which comprises an insert, an insert rod, a pressing piece and a locking piece, wherein the insert rod is provided with a head part and an insert rod, one end of the insert rod is connected with the head part, the pressing piece and the locking piece are sequentially sleeved on the insert rod and are far away from one end of the head part, a clamping groove is formed in the side surface of the insert rod, the locking piece is clamped in the clamping groove, and a workpiece sleeved on the insert rod and positioned between the head part and the pressing piece is locked by abutting against the pressing piece. Compared with the existing bolt and nut combination technology, the fastening assembly provided by the invention is convenient to use, high in installation efficiency, strong in self-locking capacity, not easy to loosen, good in fastening effect, high in reliability and capable of eliminating potential safety hazards.

Description

Fastening assembly

Technical Field

The invention relates to the technical field of fastening devices, in particular to a fastening assembly.

Background

Along with the continuous development of science and technology, the fastening combination of bolt and nut is by each trade of wide application in industrial production, and present nut and bolt are in the cooperation use, are usually with the bolt head of a spanner fixed bolt, and another spanner swivel nut fastens, under general condition, need to rotate the fastening effect that can reach the requirement behind the nut many circles, use very inconveniently, and the installation effectiveness is not high.

In addition, the structure of the nut and the bolt cannot play a role in preventing loosening fundamentally, and particularly under the vibration working condition, the loosening prevention effect is not good enough, and many accidents are caused by loosening of the nut. In many tip, war industry or railway bridge fields, the requirement to the fastener is higher, in case take place to loosen, the consequence is beyond the assumption, has the potential safety hazard.

Disclosure of Invention

The invention provides a fastening assembly for solving the problems in the prior art, which aims to solve the problems in the prior art that the use is inconvenient, the installation efficiency is not high, the loosening is easy, and the fastening effect is not good.

In order to achieve the purpose, the technical scheme of the invention is as follows:

the utility model provides a fastening assembly, includes plug-in components, be equipped with head and one end and the inserted bar that the head is connected, still including overlapping in proper order keep away from on the inserted bar the piece and the retaining member that compress tightly of head one end, be equipped with the draw-in groove on the side of inserted bar, the retaining member joint in the draw-in groove and through with compress tightly a butt will overlap and be in lie in on the inserted bar head and compress tightly the work piece locking between the piece.

The pressing piece comprises a pressing piece body and a first convex ring arranged on one end side face of the pressing piece body, the axial direction of the pressing piece is provided with a first shaft hole matched with the inserted bar, the pressing piece is sleeved on the inserted bar through the first shaft hole, and the first convex ring is close to the end face of one end of the locking piece and is provided with at least one first fan-shaped inclined plane.

The retaining member includes the retaining member body and locates the second bulge loop of retaining member body one end side, the axial of retaining member be equipped with inserted bar complex second shaft hole, the second bulge loop is close to be equipped with the fan-shaped inclined plane of at least one second on the terminal surface of compressing tightly one end.

Be equipped with at least one fixture block of axial extension on the second shaft hole inner wall, the draw-in groove is including locating ring groove on the side of inserted bar, and respectively with ring groove with the inserted bar is kept away from at least one slot that the terminal surface of head one end is connected, the retaining member passes through the fixture block inserts the slot is arranged in through the rotation ring groove internal fixation.

One side of the clamping block, which is far away from one end of the pressing piece, is provided with a notch, and a convex block matched with the notch is arranged on the annular clamping groove at the corresponding position of the notch.

The fixture block with the slot all is equipped with threely, three fixture block along the inner wall circumference evenly distributed of second shaft hole on the retaining member, three slot along the circumference evenly distributed of the side of inserted bar.

First fan-shaped inclined plane and the fan-shaped inclined plane of second all are equipped with three and end to end connection, the height on first fan-shaped inclined plane and the fan-shaped inclined plane of second all along the circumference anticlockwise of compressing tightly piece or retaining member increases progressively.

The outward flange department on first fan-shaped inclined plane is equipped with a plurality of sawtooth grooves, on the fan-shaped inclined plane of second with sawtooth groove relevant position department be equipped with a plurality of archs of sawtooth groove complex, work as the retaining member with when compressing tightly a butt, protruding and relevant position sawtooth groove joint.

Still include bolt spare, bolt spare includes bolt body and orientation three bolt that extends in the bolt body one end outside works as the retaining member is arranged in through the rotation back in the ring groove, the bolt cover is in arrange in on the inserted bar in the slot and be located between two adjacent fixture blocks with the restriction the retaining member rotates.

The plug pin comprises a plug pin body, and is characterized in that a plug buckle is arranged on the end face, close to one end of the plug rod, of the plug pin body, and a jack matched with the plug buckle is arranged at the corresponding position of the plug buckle on the end face of the plug rod.

The invention has the beneficial effects that:

compared with the existing bolt and nut combination technology, the fastening assembly provided by the invention is convenient to use, high in installation efficiency, strong in self-locking capacity, not easy to loosen, good in fastening effect and high in reliability, and potential safety hazards are eliminated.

Drawings

The following detailed description of embodiments of the invention is provided in conjunction with the appended drawings, in which:

fig. 1 is an exploded schematic view of the present invention.

Fig. 2 is a schematic view of the working state of the present invention.

Fig. 3 is a sectional view a-a of fig. 2.

Fig. 4 is a schematic view showing the structure of the locker of the present invention.

Fig. 5 is a schematic view of the construction of the latch member of the present invention.

Detailed Description

In order to make the technical problems, technical solutions and technical effects solved by the present invention easy to understand, the following description further describes specific embodiments of the present invention with reference to the specific drawings.

It should be noted that, for the convenience of description, only a part of the structure related to the present invention is shown in the drawings, not the whole structure.

As shown in fig. 1-2, in an embodiment of the present invention, there is provided a fastening assembly, which includes an insert 1 having a head 11 and an insert rod 12 connected to the head 11 at one end, wherein one end of the insert rod 12 is vertically and fixedly connected to one end of the head 11, and the other end is suspended. The head 11 may have a hexagonal cross section or may have a quadrangular or dodecagonal cross section, and the stem 12 is cylindrical and is adapted to be inserted into the mounting hole of the workpiece 5. Fastening components still including overlapping in proper order on inserted bar 12 keep away from the piece 2 and the retaining member 3 that compress tightly of head 11 one end, compress tightly 2 and be used for compressing tightly work piece 5, retaining member 3 is used for will compressing tightly 2 locking on inserted bar 12, is equipped with the draw-in groove on the side of inserted bar 12, retaining member 3 joint in the draw-in groove and through with compress tightly 2 butts will overlap the work piece 5 locking that is located head 11 on inserted bar 12 and compress tightly between 2. Because it is direct cover on inserted bar 12 to compress tightly a 2, retaining member 3 joint is in the draw-in groove, and plug-in components 1, it does not all have the screw thread to compress tightly a 2 and retaining member 3, compare with the combination of traditional bolt and nut (plug-in components 1 is equivalent to the bolt, it respectively is equivalent to a nut to compress tightly a 2 and retaining member 3), it is more convenient to use, the installation effectiveness is higher, and because the draw-in groove is to retaining effect of retaining member 3 in the axial, self-locking ability is stronger, it is difficult for the pine to take off to compress tightly a 2 and retaining member 3, the fastening effect is better, high reliability, the potential safety hazard has been eliminated.

As shown in fig. 1, the pressing member 2 includes a pressing member body 21 and a first convex ring 22 disposed on a side surface of one end of the pressing member body 21, a first shaft hole 24 engaged with the insertion rod 12 is axially disposed on the pressing member 2, a diameter of the first shaft hole 24 is slightly larger than a diameter of the insertion rod 12, the pressing member 2 is sleeved on the insertion rod 12 through the first shaft hole 24, and at least one first fan-shaped inclined surface 23 is disposed on an end surface of the first convex ring 22 close to one end of the locking member 3. The cross section of the pressing piece body 21 is dodecagonal, hexagonal or other shapes, the first convex ring 22 is annular, and the end face of one end of the first convex ring 22, which is far away from the locking piece 3, is arc-shaped.

As shown in fig. 1-4, the locking member 3 includes a locking member body 31 and a second protruding ring 32 disposed on a side surface of one end of the locking member body 31, a second shaft hole 33 engaged with the inserted link 12 is axially disposed on the locking member 3, the second shaft hole 33 is used for being sleeved on the inserted link 12, a diameter of the second shaft hole is slightly larger than a diameter of the inserted link 12, at least one second fan-shaped inclined surface 35 is disposed on an end surface of the second protruding ring 32 close to one end of the pressing member 2, and the first fan-shaped inclined surface 23 is engaged with the second fan-shaped inclined surface 35. The cross section of the locking piece body 31 is dodecagonal, hexagonal or other shapes, the second convex ring 32 is annular, and the end face of the second convex ring 32 far away from one end of the pressing piece 2 is arc-shaped.

At least one clamping block 34 axially extending is arranged on the inner wall of the second shaft hole 33, the clamping groove is composed of two parts, including an annular clamping groove 121 arranged on the side surface of the inserted rod 12 and at least one slot 122 connected with the end surfaces of the annular clamping groove 121 and the end surface of the end, far away from the head 11, of the inserted rod 12, the locking member 3 is inserted into the slot 122 through the clamping block 34 and is arranged in the annular clamping groove 121 through rotation to be fixed (clockwise rotation in the figure 1), and the height of the locking member 3 is slightly smaller than that of the annular clamping groove 121. Retaining member 3 fixes back in ring groove 121, and its terminal surface with compressing tightly 2 contacts is used for compressing tightly 2, and behind retaining member 3 rotatory certain angle, and fixture block 34 moves out from slot 122, and the top surface of fixture block 34 offsets with ring groove 121's roof for ring groove 121 has axial limiting displacement to fixture block 34.

One side of the clamping block 34, which is far away from one end of the pressing member 2, is provided with a notch 341, as can be seen from fig. 1, the notch 341 is arranged at the right side of the top end of the clamping block 34, a protrusion 123 matched with the notch 341 is arranged at a position, corresponding to the notch 341, on the ring-shaped clamping groove 121, and when the pressing member 2 is inserted into the ring-shaped clamping groove 121 from the slot 122 and then rotates in the ring-shaped clamping groove 121 for a certain angle, the protrusion 123 and the notch 341 are in matched clamping connection so as to circumferentially limit the pressing member 2.

In a preferred embodiment, there are three locking blocks 34 and three slots 122, three locking blocks 34 are uniformly distributed along the circumferential direction of the inner wall of the second shaft hole 33 on the locking member 3, three slots 122 are uniformly distributed along the circumferential direction of the side surface of the plunger 12, and the shape and size of the locking blocks 34 match with the shape and size of the slots 122.

As shown in fig. 1, 2 and 4, in a preferred embodiment, the first fan-shaped inclined surfaces 23 and the second fan-shaped inclined surfaces 35 are provided with three and connected end to end, the heights of the first fan-shaped inclined surfaces 23 and the second fan-shaped inclined surfaces 35 are increased along the circumferential direction of the pressing piece 2 or the locking piece 3, and when the locking piece 3 is clamped in the ring-shaped clamping groove 121 and the pressing piece 2 is rotated clockwise, the workpiece 5 is locked by the abutting of the first fan-shaped inclined surfaces 23 and the second fan-shaped inclined surfaces 35. The abutting state in fig. 2 is an ideal state, and in particular, in use, when the higher points of the first fan-shaped inclined surface 23 and the second fan-shaped inclined surface 35 are abutted, a part between the first fan-shaped inclined surface 23 and the second fan-shaped inclined surface 35 is a gap.

Further, the outer edge of the first fan-shaped inclined plane 23 is provided with a plurality of sawtooth grooves 25, the corresponding positions of the second fan-shaped inclined plane 35 and the sawtooth grooves 25 are provided with a plurality of protrusions 36 matched with the sawtooth grooves 25, and when the locking piece 3 abuts against the pressing piece 2, the protrusions 36 are clamped with the sawtooth grooves 25 at the corresponding positions, so that the locking piece 3 is limited to rotate relatively in the circumferential direction between the pressing piece 2. The bottom surface of the sawtooth groove 25 is a slope structure, the inclination direction of the sawtooth groove is consistent with the inclination direction of the first fan-shaped slope 23, the top surface of the protrusion 36 is a slope structure, the inclination direction of the sawtooth groove is consistent with the inclination direction of the second fan-shaped slope 35, and the sawtooth groove 25 is matched with the protrusion 36 for use.

As shown in fig. 5, further, the locking device further includes a latch member 4 including a latch body 41 and three latches 43 extending toward an outer side of one end of the latch body 41, and when the locking member 3 is placed in the circular slot 121, the latches 43 are placed in the slots 122 and between two adjacent blocks 34 to limit the rotation of the locking member 3.

The end surface of the bolt body 41 near one end of the inserted link 12 is provided with an inserted buckle 44, and the end surface of the inserted link 12 corresponding to the inserted buckle 44 is provided with a jack 124 matched with the inserted buckle 44. The eye-splice 44 is equipped with two picture pegs that the interval set up, and the lateral surface of keeping away from bolt body 41 one end on the picture peg is equipped with the arc chimb, and intermediate position on the terminal surface of keeping away from head 11 one end on the inserted bar 12 is located to jack 124, be equipped with on the bottom lateral wall of jack 124 with arc chimb complex ring channel, after in eye-splice 44 inserted jack 124, the ring channel was arranged in to the arc chimb, can prevent that bolt spare 4 and jack 124 from breaking away from. A ring of grooves 42 are also provided on the side of the bolt body 41 to facilitate gripping the bolt body 41 with a tool and removing the bolt element 4.

As shown in fig. 2, in a specific use, the workpiece 5 is sleeved on the insert rod 12 and located between the head 11 of the insert 1 and the pressing member 2, the pressing member 2 is directly sleeved on the insert rod 12, the locking member 3 is inserted into the slot from the slot 122 to reach the position of the circular slot 121, and then rotates by a certain angle, so that the locking member 3 is clamped in the circular slot 121 and fixed and limited by the matching of the notch 341 and the protrusion 123, then the plug pin 43 of the plug pin member 4 is inserted into the slot 122, and further inserted between two adjacent clamping blocks 34 to position the locking member 3, so as to prevent circumferential rotation thereof, and then the pressing member 2 is rotated clockwise by a tool, and due to the squeezing action between the second fan-shaped inclined surface 35 and the first fan-shaped inclined surface 23, the pressing member 2 can generate a certain axial displacement towards the direction of the workpiece 5, so as to press the workpiece 5. If the workpiece 5 is not clamped tight enough due to tolerances or insufficient height, an appropriate adjustment can be made by adding a spacer between the workpiece 5 and the pressing member 2.

During the dismantlement, extract bolt piece 4 with the instrument, rotate retaining member 3 certain angle again, take out retaining member 3 from slot 122 department, then take out and compress tightly a 2 and can easily accomplish, it is also very convenient to dismantle.

The above embodiments and drawings are only for illustrating the technical solutions of the present invention and do not limit the present invention. It should be noted that, a person skilled in the art may modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for part or all of the technical features, and such modifications or substitutions are included in the scope of the claims of the present invention.

Claims

1. A fastening assembly, characterized by: including plug-in components, be equipped with head and one end and the inserted bar that the head is connected, still including overlapping in proper order keep away from on the inserted bar the piece and the retaining member that compress tightly of head one end, be equipped with the draw-in groove on the side of inserted bar, the retaining member joint in the draw-in groove and through with compress tightly a butt will overlap and be in lie in on the inserted bar the head with compress tightly the work piece locking between the piece.

2. The fastener assembly of claim 1, wherein: the pressing piece comprises a pressing piece body and a first convex ring arranged on one end side face of the pressing piece body, the axial direction of the pressing piece is provided with a first shaft hole matched with the inserted bar, the pressing piece is sleeved on the inserted bar through the first shaft hole, and the first convex ring is close to the end face of one end of the locking piece and is provided with at least one first fan-shaped inclined plane.

3. The fastener assembly of claim 2, wherein: the retaining member includes the retaining member body and locates the second bulge loop of retaining member body one end side, the axial of retaining member be equipped with inserted bar complex second shaft hole, the second bulge loop is close to be equipped with the fan-shaped inclined plane of at least one second on the terminal surface of compressing tightly one end.

4. The fastener assembly of claim 3, wherein: be equipped with at least one fixture block of axial extension on the second shaft hole inner wall, the draw-in groove is including locating ring groove on the side of inserted bar, and respectively with ring groove with the inserted bar is kept away from at least one slot that the terminal surface of head one end is connected, the retaining member passes through the fixture block inserts the slot is arranged in through the rotation ring groove internal fixation.

5. The fastener assembly of claim 4, wherein: one side of the clamping block, which is far away from one end of the pressing piece, is provided with a notch, and a convex block matched with the notch is arranged on the annular clamping groove at the corresponding position of the notch.

6. The fastener assembly of claim 5, wherein: the fixture block with the slot all is equipped with threely, three fixture block along the inner wall circumference evenly distributed of second shaft hole on the retaining member, three slot along the circumference evenly distributed of the side of inserted bar.

7. The fastener assembly of claim 6, wherein: first fan-shaped inclined plane and the fan-shaped inclined plane of second all are equipped with three and end to end connection, the height on first fan-shaped inclined plane and the fan-shaped inclined plane of second all along the circumference anticlockwise of compressing tightly piece or retaining member increases progressively.

8. The fastener assembly of claim 7, wherein: the outward flange department on first fan-shaped inclined plane is equipped with a plurality of sawtooth grooves, on the fan-shaped inclined plane of second with sawtooth groove relevant position department be equipped with a plurality of archs of sawtooth groove complex, work as the retaining member with when compressing tightly a butt, protruding and relevant position sawtooth groove joint.

9. The fastener assembly of claim 8, wherein: still include bolt spare, bolt spare includes bolt body and orientation three bolt that extends in the bolt body one end outside works as the retaining member is arranged in through the rotation back in the ring groove, the bolt cover is in arrange in on the inserted bar in the slot and be located between two adjacent fixture blocks with the restriction the retaining member rotates.

10. The fastener assembly of claim 9, wherein: the plug pin comprises a plug pin body, and is characterized in that a plug buckle is arranged on the end face, close to one end of the plug rod, of the plug pin body, and a jack matched with the plug buckle is arranged at the corresponding position of the plug buckle on the end face of the plug rod.