CN213270678U

CN213270678U - Novel flange face bolt

Info

Publication number: CN213270678U
Application number: CN202021641913.9U
Authority: CN
Inventors: 谢天奉; 郑晓武
Original assignee: Zhejiang Tianhong Fastener Co ltd
Current assignee: Zhejiang Tianhong Fastener Co ltd
Priority date: 2020-08-10
Filing date: 2020-08-10
Publication date: 2021-05-25
Anticipated expiration: 2030-08-10

Abstract

The utility model discloses a novel flange bolt, which comprises a bolt body and a baffle ring; the bolt body is provided with an external thread at the rod part, the baffle ring is installed at the rod part of the bolt body through the thread, and a clamping groove is formed in the excircle of the baffle ring; the utility model discloses a novel flange face bolt has set up and has kept off the ring, makes current flange face bolt function obtain the extension, has optimized the mounting structure who keeps off the ring simultaneously, improves the installation accuracy who keeps off the ring.

Description

Novel flange face bolt

Technical Field

The utility model belongs to the technical field of the nonstandard connecting piece, especially, relate to a novel flange face bolt.

Background

The flange face bolt has large supporting face, connection and anti-loosening functions, and is widely applied to the fields of aviation, aerospace, electronics, defense and the like, the relevant standards of the flange face bolt have special requirements on the size, positioning accuracy, anti-loosening reliability and consistency of the supporting face of the flange face bolt, the manufacturing cost is much higher than that of a common bolt, the flange face bolt in the prior art is improved in function compared with the common bolt, a stop ring is arranged on the rod part of the flange face bolt in order to meet the use requirement, a section of polished rod is arranged on the rod part of the flange face bolt, and the stop ring is sleeved on the polished rod part of the rod part.

SUMMERY OF THE UTILITY MODEL

To the defect among the prior art, the utility model provides a novel flange face bolt has set up and has kept off the ring, makes current flange face bolt function obtain the extension, has optimized the mounting structure who keeps off the ring simultaneously, improves the installation accuracy who keeps off the ring.

The novel flange bolt comprises a bolt body and a baffle ring; the pole portion of bolt body is equipped with the external screw thread, keep off the ring and pass through the screw thread and install in the pole portion of bolt body, the excircle of keeping off the ring is equipped with the draw-in groove, keeps off the corresponding internal thread that is equipped with of the interior circle of ring, will keep off the ring and pass through the screw thread and install in the pole portion of bolt body, can improve the installation accuracy who keeps off the ring compared with prior art, in addition, the draw-in groove that sets up on the fender ring, can use the gib head spanner to screw it up.

Furthermore, the root part of the corresponding external thread on the rod part is provided with a step surface for axially positioning the retaining ring, the retaining ring is tightly attached to the step surface after being screwed, and the distance between the step surface and the head part of the bolt body is determined according to the requirement.

Furthermore, all be equipped with anti-skidding line on the opposite face of fender ring and step face, screw up the fender ring after, utilize the frictional action between its and the step face to produce locking effect, set up the very big increase frictional force of anti-skidding line, it is locking more reliable.

Furthermore, the anti-skid stripes comprise a plurality of stripes which are radially arranged, the facing surfaces of the stripes on the baffle ring and the stripes on the step surface are inclined push surfaces, and the back surfaces of the stripes are forward push surfaces; the head-on side refers to one side surface of the baffle ring, which is opposite to the stripes on the step surface, and the back surface is the opposite side surface in the process of screwing the baffle ring; the cross section of the stripe is a right triangle, the blockage of the inclined push surface to the tightening process of the baffle ring is relatively small, and the anti-loosening effect is further achieved by utilizing the blocking effect between the forward push surfaces after tightening.

Furthermore, there are 6 draw-in grooves to along the excircle evenly distributed of fender ring, be convenient for keep off the screwing up operation of ring.

The utility model has the advantages that: the utility model discloses a novel flange face bolt has set up and has kept off the ring, makes current flange face bolt function obtain the extension, has optimized the mounting structure who keeps off the ring simultaneously, improves the installation accuracy who keeps off the ring.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. In the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

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

fig. 2 is a plan view of the retainer ring.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.

As shown in fig. 1 and 2: the novel flange face bolt comprises a bolt body 1 and a baffle ring 3; bolt body 1's pole portion 2 is equipped with external screw thread 5, keep off ring 3 and install in bolt body 1's pole portion 2 through the screw thread, keep off ring 3's excircle and be equipped with draw-in groove 4, keep off ring 3 the corresponding internal thread that is equipped with of interior circle, will keep off ring 3 and install in bolt body 1's pole portion 2 through the screw thread, compare with prior art and improve the installation accuracy who keeps off ring 3, in addition, keep off the draw-in groove 4 that sets up on ring 3, can use the gib head spanner to screw it up, and the practicality is strong.

In this embodiment, a step surface for axially positioning the retainer ring 3 is disposed at a root of the rod portion 2 corresponding to the external thread 5, the retainer ring 3 is tightly attached to the step surface after being screwed, and a distance between the step surface and the head of the bolt body 1 is determined as required.

In this embodiment, all be equipped with anti-skidding line on the opposite face of fender ring 3 and step face, screw up fender ring 3 back, utilize the frictional action between its and the step face to produce locking effect, set up the very big increase frictional force of anti-skidding line, it is locking more reliable.

In this embodiment, the anti-slip stripes include a plurality of stripes 6 arranged radially, the stripes 6 on the baffle ring 3 and the stripes 6 on the step surface are facing obliquely, and the back is a forward pushing surface; the head-on is that the stripes 6 on the baffle ring 3 and the stripes 6 on the step surface are opposite to each other, and the back surface is the opposite side surface in the process of screwing the baffle ring 3; the cross section of the stripe 6 is a right triangle, the blockage of the inclined push surface to the blocking ring 3 in the screwing process is relatively small, and the anti-loosening effect is further achieved by utilizing the blocking effect between the forward push surfaces after screwing.

In this embodiment, there are 6 slots 4 and the slots are uniformly distributed along the outer circle of the baffle ring 3, so as to facilitate the tightening operation of the baffle ring 3.

As further extension scheme, the outer end of pole portion 2 is coaxial to be provided with round platform 7, the diameter of round platform 7 is less than 2 outer end department diameters of pole portion to with pole portion 2 between through the transition of circular conical surface 8, adopt this kind of structure, in some special use occasions, accessible round platform 7 stretches into in the location round hole of another corresponding part, play the positioning action, still can set up the draw-in groove 71 that is used for connecting the jump ring on the circumference of round platform 7 outer end in the actual operation, round platform 7 runs through the accessible card after another corresponding part and establishes the jump ring and connect when in actual use, namely through the design of above-mentioned structure, can realize the fixed connection of polylith plate part during actual use, expanded application range.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims

1. The utility model provides a novel flange face bolt which characterized in that: comprises a bolt body and a baffle ring; the bolt is characterized in that the rod part of the bolt body is provided with external threads, the baffle ring is installed on the rod part of the bolt body through threads, and the outer circle of the baffle ring is provided with a clamping groove.

2. The novel flange face bolt of claim 1, characterized in that: the root part of the rod part corresponding to the external thread is provided with a step surface for axially positioning the baffle ring.

3. The novel flange face bolt of claim 2, characterized in that: and anti-skid grains are arranged on the opposite surfaces of the baffle ring and the step surface.

4. A novel flange face bolt according to claim 3, characterized in that: the anti-slip patterns comprise a plurality of radially arranged patterns, the facing surfaces of the patterns on the baffle ring and the patterns on the step surface are inclined push surfaces, and the back surfaces of the patterns are forward push surfaces.

5. The novel flange face bolt of claim 4, characterized in that: the draw-in groove has 6 to along the excircle evenly distributed of fender ring.