CN209977042U

CN209977042U - Integrated fastener

Info

Publication number: CN209977042U
Application number: CN201920847791.XU
Authority: CN
Inventors: 张亚宁
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-06-06
Filing date: 2019-06-06
Publication date: 2020-01-21
Anticipated expiration: 2029-06-06

Abstract

The utility model relates to an integration fastener contains bolt, nut, axle center lock, the bolt contains the screw rod, still contains and prevents the axle center lock with the mutual rotatory circumferential motion limiting mechanism of screw rod with prevent the axle center lock with the mutual axial motion limiting mechanism who drops of nut, the axle center lock passes through circumferential motion limiting mechanism and axial motion limiting mechanism simultaneously with nut and the mutual lock of screw rod die become one, and its characteristics are, through changing the axle center lock structure in the past with the shape realize with the nut with the purpose of the mutual block of screw rod is guaranteeing that the fastener is firm not pine takes off, changes in mill's processing, installation and dismantlement, but reuse, and the material is more economized, the volume is littleer, and the range of application is extensive.

Description

Integrated fastener

Technical Field

The utility model belongs to the technical field of coupling fastener, concretely relates to integration fastener.

Background

The bolt and the nut are the most commonly used connecting fasteners in the mechanical field, the commonly used bolt and nut are mostly common standard fasteners, and under the action of impact, vibration or heavy load, the friction force between the thread pairs is gradually reduced or disappears instantly, so that the threaded connection is loosened, even the fastener falls off or is lost, and mechanical equipment can break down.

In the eccentric nut technology of japan, the double nut configuration is adopted to increase the frictional force by increasing the radial force of the nut and the screw, and the anti-loosening effect is currently the world-recognized best. In the German anti-loose gasket technology, a double-gasket structure is adopted to indirectly increase the pretightening force, the hardness of the gasket is required to be greater than that of the contact surface of the nut and an object, otherwise, enough friction force cannot be generated between the gasket and the object and between the gasket and the nut, and the double-gasket structure cannot generate the effect of increasing the pretightening force.

The applicant researches the existing nut anti-loosening method and the design idea thereof, and finds that the improvement and the improvement are mainly carried out along the direction of increasing the friction force and the adhesion force between the nut and the bolt, the implementation procedures are multiple, the disassembly is inconvenient, some nuts can only be disassembled in a destructive manner, the nuts cannot be reused, and the fastening effect is not completely ideal. The super fastening kit with the patent number of 201720983196.X applied by the applicant in the past realizes structural looseness prevention between a bolt and a nut by adding a connecting piece of an axis lock, and compared with the prior art, the effect is fundamentally and substantially improved.

SUMMERY OF THE UTILITY MODEL

In order to solve the prior art defect, one of the purposes of the utility model is to provide a structural design is reasonable, the locking takes off effect more excellent, manufacturing cost is lower, occupation space is littleer, the more convenient integration fastener of loading and unloading, the utility model discloses one of the purposes is to provide a use method of integration fastener, and its concrete technical scheme is as follows:

an integrated fastener comprises a bolt, a nut and an axis lock, wherein the bolt comprises a screw, a circumferential motion limiting mechanism for preventing the axis lock and the screw from rotating mutually and an axial motion limiting mechanism for preventing the axis lock and the nut from falling off mutually, the axis lock is mutually locked with the nut and the screw into a whole through the circumferential motion limiting mechanism and the axial motion limiting mechanism, the circumferential motion limiting mechanism is a strip-shaped limiting groove arranged outside the screw or a limiting groove hole arranged at the tail end of the screw and a bulge arranged on the axis lock and mutually clamped with the strip-shaped limiting groove or the limiting groove hole, the bulge can be triangular, semicircular, polygonal, cylindrical and the like according to requirements, when the circumferential motion limiting mechanism is the strip-shaped limiting groove arranged outside the screw, the axis lock can be a circular ring without an upper top surface or a section of circular arc, the protrusion which is arranged on the axis lock and is mutually clamped with the strip-shaped limiting groove is positioned on the inner side wall of the circular ring or the circular arc of the axis lock, at least one strip-shaped limiting groove is arranged, and the number of the protrusions is not more than that of the strip-shaped limiting grooves; when the circumferential motion limiting mechanism is a limiting slotted hole arranged at the tail end of the screw rod, the axis lock is a cylinder with a closed upper top surface or a part of a cylinder with a semi-closed upper top surface, a protrusion which is clamped with the limiting slotted hole on the axis lock is positioned on the axis lock upper top surface, the number of the limiting slotted hole and the protrusion which is clamped with the limiting slotted hole are respectively one, the length of the protrusion is not longer than that of the limiting slotted hole, the axial motion limiting mechanism is a locking structure which is arranged on a contact surface which is mutually buckled with the nut and the axis lock on the nut and the axis lock, the contact surface which is mutually buckled with the nut and the axis lock is a top surface which refers to the nut when the nut is normally placed in the patent application, and in view of the shape structure of the axis lock in the patent application, the contact surface of the side wall of the nut does not exist here, this is one of the differences in this application from the applicant's prior art patent.

Further, the contact surface is a horizontal surface, a vertical surface or a conical surface.

Furthermore, the locking structure is a concave-convex structure which is arranged on the nut and the axis lock and is arranged on the contact surface, the concave-convex structure is in a ratchet shape or a tooth shape, an included angle between a central line of a horizontal plane part of the nut body and the horizontal plane of the nut, which is protruded out of the concave-convex structure, is smaller than an included angle between a central line of the strip-shaped limiting groove and the horizontal plane of the head of the bolt, and specific angles and directions are based on the attached drawing marks.

Furthermore, the locking structure is a friction surface structure arranged on the contact surface of the nut and/or the axle center lock, namely at least one surface of the contact surface of the nut and the axle center lock which are mutually buckled is a friction surface structure, so that the anti-skid purpose can be achieved.

Preferably, the friction face structure is nylon or engineering plastic.

Further, the strip-shaped limiting groove is a vertical strip-shaped limiting groove or a spiral strip-shaped limiting groove with the screw as a reference.

Preferably, the spiral direction of the spiral strip-shaped limit groove is opposite to the direction of the thread on the screw rod.

A use method of the integrated fastener comprises the following steps:

s1, sleeving the screw rod with the side, provided with the locking structure, of the nut, which is far away from the bolt, and screwing the nut;

s2, facing the surface of the axle center lock with the locking structure to the surface of the nut with the locking structure, and simultaneously placing the bulge on the axle center lock above the nut in a way of aligning with the strip-shaped limiting groove or the limiting slotted hole;

s3, slightly rotating the nut along the loosening direction to enable the locking structures between the nut and the axle center lock to be mutually buckled and integrated;

and S4, slightly rotating the nut along the tightening direction to separate the locking structures between the nut and the axle center lock, taking down the axle center lock, and unscrewing the nut.

The nut is slightly rotated in the loosening direction or the screwing direction by a small angle, the nut is different according to different specific structures of the locking structure, the nut can be successfully operated by a person skilled in the art according to experience, and the nut can be easily and successfully assembled and disassembled by an ordinary user according to the method when the nut is used.

Compared with the prior art, the utility model discloses integration fastener has following advantage and effect:

1. the product of the utility model has reasonable structural design, and realizes the structural anti-loosening effect between the bolt and the nut by limiting the circumferential movement and the axial movement of the bolt and the nut assembly;

2. through the improvement of the raised structure of the axle center lock, the processing technology is simplified, the processing cost is reduced, and meanwhile, the fastening effect between the axle center lock and the bolt is improved, so that the anti-loosening effect of the integrated fastener in a large vibration environment is greatly improved;

3. through the improvement of the buckling position and structure between the nut and the axle center lock, the material cost of the axle center lock is reduced, and the volume of the axle center lock is reduced, so that the integral volume of the integrated fastener is reduced; not only the installation and the disassembly are more convenient, accurate and rapid, but also the workload and the danger possibility of workers are reduced;

4. due to the fact that the locking structure between the nut and the axle center lock enables installation and use to be convenient and fast, the application range of the product is greatly widened.

Drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the following description of the characterizing parameters of the embodiments is shown in the accompanying drawings, and it is obvious that the following drawings only illustrate some embodiments of the present invention. In the following, the horizontal planes of the components mentioned in the claims and the specification are relative concepts, and particularly, the angles and the directions shown in the specification and the drawings of fig. 9 are used as the basis.

Fig. 1 is a schematic view of the three-dimensional structure of embodiment 1 of the present invention;

fig. 2 is a schematic view of a three-dimensional structure combination in embodiment 2 of the present invention;

fig. 3 is a schematic view of a three-dimensional structure combination in embodiment 2 of the present invention;

fig. 4 is a schematic diagram of the embodiment 3 of the present invention with a partially disassembled structure;

fig. 5 is a schematic view of a three-dimensional structure half combination in embodiment 4 of the present invention;

fig. 6 is a schematic view of the three-dimensional structure combination of embodiment 5 of the present invention;

fig. 7 is a schematic view of the embodiment 6 of the present invention for splitting a three-dimensional structure;

fig. 8 is a schematic view of the embodiment 6 of the present invention for splitting a three-dimensional structure;

fig. 9 is a schematic view of a three-dimensional structure according to embodiment 7 of the present invention, and an illustration of angles and directions involved in the present patent application;

fig. 10 is a schematic view of a three-dimensional structure half combination according to embodiment 8 of the present invention.

Description of reference numerals:

1-a bolt; 11-a screw; 111-strip limiting grooves; 111' -spacing slot; 2-a nut; 3-shaft center locking; 31-a bump; 4. 4' -a locking structure; a-the concave-convex structure protrudes out of the included angle between the central line of the horizontal plane part of the nut body and the horizontal plane of the nut; b-the included angle between the central line of the strip-shaped limiting groove and the horizontal plane of the bolt head.

Detailed Description

The present invention will be described in further detail with reference to the following examples, which are illustrative of the present invention and are not intended to limit the present invention. Materials or equipment involved in each example are all conventional materials or equipment on the market if not specifically stated, and detection methods involved are all conventional methods if not specifically stated.

Example 1: as shown in fig. 1 and 9, an integrated fastener comprises a bolt, a nut, an axis lock, wherein the axis lock is in a ring shape, the bolt comprises a screw, and further comprises a circumferential motion limiting mechanism for preventing the axis lock from rotating with the screw and an axial motion limiting mechanism for preventing the axis lock from falling off from the nut, the axis lock is locked with the nut and the screw into a whole through the circumferential motion limiting mechanism and the axial motion limiting mechanism, the circumferential motion limiting mechanism is a spiral strip-shaped limiting groove arranged outside the screw and a bulge arranged on the axis lock and clamped with the spiral strip-shaped limiting groove, the bulge is arranged on the inner side of the axis lock ring, the bulge is in a semicircular shape, the spiral direction of the spiral strip-shaped limiting groove is opposite to the thread direction on the screw, the spiral strip-shaped limiting groove and the semicircular protruding number are two, the axial motion limiting mechanism is arranged on the axis lock, the nut and the axis lock are located on the concave-convex structure on the contact surface where the nut and the axis lock are buckled mutually, the contact surface is a horizontal plane, the concave-convex structure is in a ratchet shape, the ratchet-shaped concave-convex structure is prominent, the central line of the horizontal plane part of the nut main body is smaller than the included angle of the horizontal plane of the nut, and the central line of the strip-shaped limiting groove is smaller than the included angle of the horizontal plane of the head of the bolt.

The mounting and dismounting method comprises the following steps: 1, sleeving the screw rod with the surface of the nut with the locking structure, which is far away from the bolt, and screwing the nut; 2, enabling one surface of the axis lock with the locking structure to face one surface of the nut with the locking structure, and meanwhile, aligning two semicircular bulges on the axis lock with the strip-shaped limiting grooves to be placed above the nut; 3, slightly rotating the nut along the loosening direction to enable the locking structures between the nut and the axle center lock to be mutually buckled and integrated; and 4, slightly rotating the nut along the screwing direction to separate the nut from the locking structure between the axle center locks, taking down the axle center locks and screwing down the nut.

Compared with the prior art, the product of the embodiment is easier to process and is beneficial to popularization and application; the volume is smaller, and the material cost and the processing cost are saved; this product becomes an organic whole after the installation, and is more firm, and the locking effect of taking off is better.

Example 2: as shown in fig. 2-3 and 9, this embodiment is different from embodiment 1 in that the number of the spiral strip-shaped limiting grooves and the number of the protrusions are six, and the protrusions are triangular.

Example 3: as shown in fig. 4 and 9, this embodiment is different from embodiment 1 in that the concave-convex structure is tooth-shaped.

Example 4: as shown in fig. 5, the present embodiment is different from embodiment 1 in that the axial movement restriction mechanism is a friction surface structure respectively provided on the nut and the shaft center lock on a contact surface where the nut and the shaft center lock are engaged with each other, and the friction surface structure is nylon.

Example 5: as shown in fig. 6 and 9, the present embodiment is different from embodiment 1 in that the contact surface is a conical surface.

Example 6: as shown in fig. 7-8 and 9, this embodiment is different from embodiment 5 in that the axial lock is in a cover shape with a closed top surface, the circumferential motion limiting mechanism is a limiting groove hole provided at the tail end of the screw and a cylindrical protrusion provided on the axial lock top surface and engaged with the limiting groove hole, and the length of the cylindrical protrusion is smaller than the length or depth of the limiting groove hole.

Example 7: as shown in fig. 9, this embodiment is different from embodiment 1 in that the contact surface is a vertical surface.

Example 8: as shown in fig. 9 and 10, this embodiment is different from embodiment 1 in that the spiral direction of the spiral strip-shaped stopper groove coincides with the thread direction on the screw.

Furthermore, it should be noted that all the equivalent or simple changes made according to the principles of the present invention are included in the protection scope of the present invention, and those skilled in the art can make various modifications or additions to the described embodiments or substitute them in a similar manner, without departing from the structure of the present invention or exceeding the scope defined by the claims.

Claims

1. An integrated fastener comprises a bolt, a nut and an axis lock, wherein the bolt comprises a screw rod and further comprises a circumferential motion limiting mechanism for preventing the axis lock from rotating with the screw rod and an axial motion limiting mechanism for preventing the axis lock from falling off with the nut, the axis lock is simultaneously locked with the nut and the screw rod into a whole through the circumferential motion limiting mechanism and the axial motion limiting mechanism, the integrated fastener is characterized in that the circumferential motion limiting mechanism comprises a strip-shaped limiting groove arranged outside the screw rod or a limiting groove hole arranged at the tail end of the screw rod and a bulge arranged on the axis lock and mutually clamped with the strip-shaped limiting groove or the limiting groove hole, the number of the strip-shaped limiting grooves is at least one, the number of the bulges is not more than the number of the strip-shaped limiting grooves, and the length of the bulge is not longer than the length of the limiting groove hole, the axial motion limiting mechanism is a locking structure which is arranged on the nut and the axis lock and is positioned on a contact surface where the nut and the axis lock are mutually buckled.

2. The integrated fastener of claim 1, wherein the contact surface is a horizontal surface or a vertical surface or a conical surface.

3. The integrated fastener of claim 2, wherein the locking structure is a concave-convex structure provided on the contact surface of the nut and the shaft lock, the concave-convex structure is in a ratchet shape or a tooth shape, and an included angle between a central line of a horizontal surface part of the nut body protruded by the concave-convex structure and a horizontal surface of the nut is smaller than an included angle between a central line of the strip-shaped limiting groove and a horizontal surface of the bolt head.

4. The integrated fastener of claim 2, wherein the locking structure is a friction surface structure provided on the contact surface of the nut and/or the hub lock.

5. The integrated fastener of claim 4, wherein the friction facing structure is nylon or an engineering plastic.

6. The integrated fastener of claim 1, wherein the strip-shaped limiting groove is a vertical strip-shaped limiting groove or a spiral strip-shaped limiting groove with reference to the screw.

7. The integrated fastener of claim 6, wherein the helical strip-shaped retention groove has a helical direction opposite to the direction of the thread on the shank.