CN209925403U

CN209925403U - Column sleeve locknut, taper sleeve locknut and bolt combined locknut

Info

Publication number: CN209925403U
Application number: CN201920446376.3U
Authority: CN
Inventors: 伍国强
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-04-03
Filing date: 2019-04-03
Publication date: 2020-01-10
Anticipated expiration: 2029-04-03

Abstract

The utility model relates to the technical field of fasteners, in particular to a column sleeve locknut, a taper sleeve locknut and a combined locknut for a bolt, wherein the column sleeve locknut comprises a second fastening nut and a second locknut, and the second locknut comprises a column sleeve and a second base; the taper sleeve locknut comprises a first fastening nut and a first locknut, and the first locknut comprises a taper sleeve and a first base; the combined locknut for the bolt comprises a bolt, a column sleeve locknut and a taper sleeve locknut. The utility model discloses rational in infrastructure, retrain first locknut and second locknut respectively through first fastening nut and second fastening nut, make first locknut's taper sleeve and second locknut's cylinder cover clasp bolt, realize that locknut is locking, its locking force is big, effectively avoids locknut not hard up, can also dismantle the use repeatedly, and it is very high to have reuse rate.

Description

Column sleeve locknut, taper sleeve locknut and bolt combined locknut

Technical Field

The utility model relates to a fastener technical field is a column sleeve locknut, taper sleeve locknut and bolt are with combination formula locknut.

Background

In the prior art, the nut is prevented from loosening by using additional friction force 1; 2. using a special anti-loosening element to prevent loosening; 3. and adopting an adhesive to bond and prevent looseness. However, the anti-loosening effect brought by adopting the anti-loosening measures is not good, and the repeated utilization rate is not high.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an overcome prior art not enough, provide a column casing lock nut, taper sleeve lock nut and bolt are with combination formula lock nut, its simple manufacture, the locking force is big, can not only avoid lock nut not hard up, brings better effect of relaxing, can also further overcome the taper sleeve and warp at the leftmost end and embrace the stay bolt, lead to the leftmost end to warp seriously and lead to lock nut can not used repeatedly's problem.

One of the technical schemes of the utility model is realized through following measures: a column sleeve locknut comprises a second fastening nut and a second locknut, wherein a first threaded hole and a second threaded hole are sequentially formed in the second fastening nut from top to bottom, and the aperture of the second threaded hole is larger than that of the first threaded hole; the second locknut is provided with a third threaded hole which is communicated up and down, and the third threaded hole is the same as the first threaded hole; the second anti-loose nut comprises a cylindrical sleeve and a second base, the lower end of the cylindrical sleeve is fixed with the second base, and at least two grooves with upward openings are distributed on the upper end of the cylindrical sleeve along the circumference; the cylinder cover outside is equipped with can be with second screw hole assorted external screw thread, and the cylinder cover passes through external screw thread and second fastening nut fixed connection together.

The following is a further optimization or/and improvement of one of the above technical solutions of the present invention:

the included angle between the generatrix of the outer surface of the cylindrical sleeve and the central axis can be 1-3 degrees.

The included angle between the generatrix of the outer surface of the cylindrical sleeve and the central axis can be 2 degrees.

The upper end of the cylindrical sleeve can be uniformly distributed with 4 grooves with upward openings along the circumferential direction.

The second technical scheme of the utility model is realized through following measure: a taper sleeve locknut matched with the column sleeve locknut comprises a first fastening nut and a first locknut, wherein a fourth threaded hole and a counter bore are sequentially formed in the first fastening nut from bottom to top, and the diameter of the counter bore is larger than that of the fourth threaded hole; the first locknut comprises a conical sleeve and a first base, the conical sleeve is a conical sleeve with a large upper end and a small lower end, the upper end of the conical sleeve is fixed with the first base, at least two grooves with downward openings are distributed at the lower end of the conical sleeve along the circumference, the first locknut is provided with a fifth threaded hole which is communicated up and down, and the fourth threaded hole and the fifth threaded hole are the same as the first threaded hole.

The following is further optimization or/and improvement of the second technical scheme of the utility model:

the diameter of a counter bore of the upper end face of the first fastening nut can be 2mm smaller than the maximum outer diameter of the conical sleeve.

The third technical scheme of the utility model is realized through following measures: the combined type locknut for the stud comprises a bolt, a first fastening nut, a first locknut, a second fastening nut and a second locknut, wherein the outer side of the upper end of the bolt is sequentially provided with the second fastening nut, the second locknut, the first locknut and the first fastening nut from top to bottom in a thread fixing mode, and the lower end face of the second locknut is tightly attached to the upper end face of the first locknut. The anti-loosening device comprises a bolt, a column sleeve anti-loosening nut and a taper sleeve anti-loosening nut, wherein the column sleeve anti-loosening nut and the taper sleeve anti-loosening nut are both provided with the same threads and are respectively connected with the bolt.

The utility model discloses rational in infrastructure, retrain first locknut and second locknut respectively through first fastening nut and second fastening nut, make first locknut's taper sleeve and second locknut's cylinder cover clasp bolt, realize that locknut is locking, its locking force is big, effectively avoids locknut not hard up, can also dismantle the use repeatedly, and it is very high to have reuse rate.

Drawings

Fig. 1 is a front sectional view of a second fastening nut in the first embodiment.

Fig. 2 is a front sectional view of a second locknut in the first embodiment.

Fig. 3 is a front sectional view of a first locknut in the second embodiment.

Fig. 4 is a front sectional view of the first fastening nut in the second embodiment.

Fig. 5 is a front view semi-sectional structural schematic diagram of the third embodiment.

The reference numerals in the figures illustrate: the bolt is 1, the first fastening nut is 2, the second base is 3, the conical sleeve is 4, the fifth threaded hole is 5, the groove is 6, the cylindrical sleeve is 7, the second fastening nut is 8, the counter bore is 9, the first threaded hole is 10, the second threaded hole is 11, the third threaded hole is 12, the fourth threaded hole is 14, and the first base is 15.

Detailed Description

The present invention is not limited by the following embodiments, and the specific implementation manner can be determined according to the actual situation.

In the present invention, for convenience of description, the description of the relative position relationship of the components is described according to the layout of the drawings in the specification, such as: the positional relationship of up, down, left, right, etc. is determined in accordance with the layout direction of fig. 1 in the specification.

The invention will be further described with reference to the following examples and drawings:

the first embodiment is as follows: as shown in fig. 1 and 2, the column sleeve locknut comprises a second fastening nut 8 and a second locknut, wherein a first threaded hole 10 and a second threaded hole 11 are sequentially arranged in the second fastening nut 8 from top to bottom, and the aperture of the second threaded hole 11 is larger than that of the first threaded hole 10; the second locknut is provided with a third threaded hole 12 which is communicated up and down, and the third threaded hole 12 is the same as the first threaded hole 10; the second locknut comprises a cylindrical sleeve 7 and a second base 3, the lower end of the cylindrical sleeve 7 is fixed with the second base 3, and at least two grooves 6 with upward openings are distributed at the upper end of the cylindrical sleeve 7 along the circumference; the outer side of the cylindrical sleeve 7 is provided with an external thread matched with the second threaded hole 11, and the cylindrical sleeve 7 is fixedly connected with the second fastening nut 8 through the external thread. In the using process, the cylindrical sleeve 7 is divided into a plurality of parts by the groove 6, and when the cylindrical sleeve 7 is restrained by the second fastening nut 8, the conical surface of the cylindrical sleeve 7 deforms to hold the bolt 1 tightly; the second anti-loose nut is connected with the second fastening nut 8 through threads, so that the constraint on the cylindrical sleeve 7 is strengthened. The utility model discloses rational in infrastructure, its locking force is big, effectively avoids locknut not hard up.

The column sleeve locknut can be further optimized or/and improved according to the actual requirement:

as shown in fig. 2, the included angle between the generatrix of the outer surface of the cylindrical sleeve 7 and the central axis is 1 ° to 3 °. In the use, the second fastening nut 8 can be conveniently adjusted to restrain the cylindrical sleeve 7 by the arrangement, so that the situation that the cylindrical sleeve 7 still does not hold the bolt 1 tightly after the second fastening nut 8 and the second locknut are completely screwed down due to machining errors is avoided, and the situation that the locking effect is not ideal is avoided.

As shown in fig. 2, the generatrix of the outer surface of the cylindrical sleeve 7 forms an angle of 2 ° with the central axis. This arrangement facilitates the adjustment of the constraint of the second fastening nut 8 to the cylindrical sleeve 7 during use.

As shown in fig. 2, 4 grooves 6 with upward openings are uniformly distributed on the upper end of the cylindrical sleeve 7 along the circumferential direction. In the use, can make the even dispersion of second fastening nut 8 to the binding force of cylinder cover 7 through such setting, let cylinder cover 7 produce the same deformation in order to hold tightly bolt 1 by the part that recess 6 cut apart, avoid partial atress inequality to lead to deformation too big and make cylinder cover 7 destroyed, can improve second locknut's machining efficiency like this simultaneously, be convenient for realize locking effect.

Example two: as shown in fig. 3 and 4, the taper sleeve locknut comprises a first fastening nut 2 and a first locknut, a fourth threaded hole 14 and a counter bore 9 are sequentially arranged in the first fastening nut 2 from bottom to top, and the aperture of the counter bore 9 is larger than that of the fourth threaded hole 14; the first locknut comprises a conical sleeve 4 and a first base 15, the conical sleeve 4 is a conical sleeve with a large upper end and a small lower end, the upper end of the conical sleeve 4 is fixed with the first base 15, at least two grooves with downward openings are distributed at the lower end of the conical sleeve 4 along the circumference, the first locknut is provided with a fifth threaded hole 5 which is communicated up and down, and the fourth threaded hole 14 and the fifth threaded hole 5 are identical to the first threaded hole 10. In the use, through such setting, can suitably increase the deformation space of taper sleeve 4 lower extreme, prevent that the bolt 1 from locking to the lower extreme of taper sleeve 4 and can not dismantle repeatedly and use.

The taper sleeve locknut can be further optimized or/and improved according to actual requirements:

as shown in fig. 4, the counter bore 9 of the upper end face of the first clamping nut 2 is 2mm smaller in diameter than the largest outer diameter of the conical sleeve 4. According to the demand, set up the regulation space of adjusting first fastening nut 2 to taper sleeve 4 that can be better like this, avoid 2 upper end surfaces of first fastening nut and 4 upper end annular faces of taper sleeve to lean on tightly and can not adjust, it is more convenient and easy manufacturing to use.

In a third embodiment, as shown in fig. 1, 2, 3, 4, and 5, the combined locknut for the bolt includes a bolt 1, a first fastening nut 2, a first locknut, a second fastening nut 8, and a second locknut, wherein the second fastening nut 8, the second locknut, the first locknut, and the first fastening nut 2 are fixedly installed on the outer side of the upper end of the bolt 1 sequentially through threads from top to bottom, and the lower end surface of the second locknut is tightly abutted to the upper end surface of the first locknut. According to the requirement, the combined type locknut for the bolt can be manufactured by secondary processing of the standard nut, the manufacturing process is reduced, and the obtained finished product is more convenient and faster. The combined type anti-loose nut for the bolt can form a whole by the arrangement, the column sleeve anti-loose nut and the taper sleeve anti-loose nut can be mutually constrained, and the anti-loose effect is better and obvious. Meanwhile, the column sleeve locknut and the taper sleeve locknut can be independently used, and the installation sequence of the column sleeve locknut and the taper sleeve locknut can be opposite to that of the embodiment.

Above technical feature constitutes the utility model discloses a best embodiment, it has stronger adaptability and best implementation effect, can increase and decrease unnecessary technical feature according to actual need, satisfies the demand of different situation.

Claims

1. A column sleeve locknut is characterized by comprising a second fastening nut and a second locknut, wherein a first threaded hole and a second threaded hole are sequentially arranged in the second fastening nut from top to bottom, and the aperture of the second threaded hole is larger than that of the first threaded hole; the second locknut is provided with a third threaded hole which is communicated up and down, and the third threaded hole is the same as the first threaded hole; the second anti-loose nut comprises a cylindrical sleeve and a second base, the lower end of the cylindrical sleeve is fixed with the second base, and at least two grooves with upward openings are distributed on the upper end of the cylindrical sleeve along the circumference; the cylinder cover outside is equipped with can be with second screw hole assorted external screw thread, and the cylinder cover passes through external screw thread and second fastening nut fixed connection together.

2. The cylinder sleeve locknut of claim 1, wherein the included angle between the generatrix of the outer surface of the cylinder sleeve and the central axis is 1 ° to 3 °.

3. The cylinder sleeve locknut of claim 2, wherein the included angle between the generatrix of the outer surface of the cylinder sleeve and the central axis is 2 °.

4. The cylinder sleeve locknut of claim 1, 2 or 3, wherein 4 grooves with upward openings are uniformly distributed on the upper end of the cylinder sleeve along the circumferential direction.

5. A taper sleeve locknut used in cooperation with the column sleeve locknut as claimed in claim 1, 2 or 3, characterized by comprising a first fastening nut and a first locknut, wherein a fourth threaded hole and a counter bore are sequentially arranged in the first fastening nut from bottom to top, and the aperture of the counter bore is larger than that of the fourth threaded hole; the first locknut comprises a conical sleeve and a first base, the conical sleeve is a conical sleeve with a large upper end and a small lower end, the upper end of the conical sleeve is fixed with the first base, at least two grooves with downward openings are distributed at the lower end of the conical sleeve along the circumference, the first locknut is provided with a fifth threaded hole which is communicated up and down, and the fourth threaded hole and the fifth threaded hole are the same as the first threaded hole.

6. The taper sleeve locknut of claim 5, wherein the counter bore diameter of the upper end face of the first fastening nut is 2mm smaller than the maximum outer diameter of the taper sleeve.

7. A taper sleeve locknut used in cooperation with the column sleeve locknut of claim 4 is characterized by comprising a first fastening nut and a first locknut, wherein a fourth threaded hole and a counter bore are sequentially formed in the first fastening nut from bottom to top, and the diameter of the counter bore is larger than that of the fourth threaded hole; the first locknut comprises a conical sleeve and a first base, the conical sleeve is a conical sleeve with a large upper end and a small lower end, the upper end of the conical sleeve is fixed with the first base, at least two grooves with downward openings are distributed at the lower end of the conical sleeve along the circumference, the first locknut is provided with a fifth threaded hole which is communicated up and down, and the fourth threaded hole and the fifth threaded hole are the same as the first threaded hole.

8. The taper sleeve locknut of claim 7, wherein the counter bore diameter of the upper end face of the first fastening nut is 2mm smaller than the maximum outer diameter of the taper sleeve.

9. The combined locknut for the bolt using the column sleeve locknut as claimed in claim 1, 2 or 3 and the taper sleeve locknut as claimed in claim 5 comprises a bolt, and is characterized by further comprising a first fastening nut, a first locknut, a second fastening nut and a second locknut, wherein the outer side of the upper end of the bolt is sequentially provided with the second fastening nut, the second locknut, the first locknut and the first fastening nut through threads in a fixed mode from top to bottom, and the lower end face of the second locknut is tightly attached to the upper end face of the first locknut.

10. The combined locknut for the bolt, which uses the column sleeve locknut as claimed in claim 1, 2 or 3 and the taper sleeve locknut as claimed in claim 6, 7 or 8, comprises a bolt, and is characterized by further comprising a first fastening nut, a first locknut, a second fastening nut and a second locknut, wherein the second fastening nut, the second locknut, the first locknut and the first fastening nut are fixedly installed on the outer side of the upper end of the bolt through threads in sequence from top to bottom, and the lower end face of the second locknut is tightly abutted to the upper end face of the first locknut.

11. The combined locknut for the bolt comprises the bolt and is characterized by further comprising a first fastening nut, a first locknut, a second fastening nut and a second locknut, wherein the second fastening nut, the second locknut, the first locknut and the first fastening nut are fixedly mounted on the outer side of the upper end of the bolt through threads from top to bottom in sequence, and the lower end face of the second locknut is tightly abutted to the upper end face of the first locknut.

12. The combined locknut for the bolt using the column sleeve locknut as claimed in claim 4 and the taper sleeve locknut as claimed in claim 6, 7 or 8 comprises a bolt, and is characterized by further comprising a first fastening nut, a first locknut, a second fastening nut and a second locknut, wherein the second fastening nut, the second locknut, the first locknut and the first fastening nut are sequentially arranged on the outer side of the upper end of the bolt from top to bottom in a threaded fixed mode, and the lower end face of the second locknut is tightly attached to the upper end face of the first locknut.